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com.hazelcast.org.apache.calcite.runtime.SqlFunctions Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you under the Apache License, Version 2.0
* (the "License"); you may not use this file except in com.hazelcast.com.liance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.com.hazelcast.org.licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.org.apache.calcite.runtime;
import com.hazelcast.org.apache.calcite.DataContext;
import com.hazelcast.org.apache.calcite.avatica.util.ByteString;
import com.hazelcast.org.apache.calcite.avatica.util.DateTimeUtils;
import com.hazelcast.org.apache.calcite.avatica.util.Spaces;
import com.hazelcast.org.apache.calcite.avatica.util.TimeUnitRange;
import com.hazelcast.org.apache.calcite.interpreter.Row;
import com.hazelcast.org.apache.calcite.linq4j.AbstractEnumerable;
import com.hazelcast.org.apache.calcite.linq4j.CartesianProductEnumerator;
import com.hazelcast.org.apache.calcite.linq4j.Enumerable;
import com.hazelcast.org.apache.calcite.linq4j.Enumerator;
import com.hazelcast.org.apache.calcite.linq4j.Linq4j;
import com.hazelcast.org.apache.calcite.linq4j.function.Deterministic;
import com.hazelcast.org.apache.calcite.linq4j.function.Experimental;
import com.hazelcast.org.apache.calcite.linq4j.function.Function1;
import com.hazelcast.org.apache.calcite.linq4j.function.NonDeterministic;
import com.hazelcast.org.apache.calcite.linq4j.tree.Primitive;
import com.hazelcast.org.apache.calcite.runtime.FlatLists.ComparableList;
import com.hazelcast.org.apache.calcite.util.Bug;
import com.hazelcast.org.apache.calcite.util.NumberUtil;
import com.hazelcast.org.apache.calcite.util.TimeWithTimeZoneString;
import com.hazelcast.org.apache.calcite.util.TimestampWithTimeZoneString;
import com.hazelcast.org.apache.calcite.util.Unsafe;
import com.hazelcast.org.apache.calcite.util.Util;
import com.hazelcast.org.apache.com.hazelcast.com.ons.codec.digest.DigestUtils;
import com.hazelcast.org.apache.com.hazelcast.com.ons.codec.language.Soundex;
import com.hazelcast.com.google.com.hazelcast.com.on.base.Splitter;
import com.hazelcast.com.google.com.hazelcast.com.on.base.Strings;
import java.lang.reflect.Field;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.math.MathContext;
import java.math.RoundingMode;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.text.DecimalFormat;
import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Base64;
import java.util.Collection;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Objects;
import java.util.Set;
import java.util.TimeZone;
import java.util.concurrent.atomic.AtomicLong;
import java.util.regex.Pattern;
import javax.annotation.Nonnull;
import static com.hazelcast.org.apache.calcite.util.Static.RESOURCE;
import static java.nio.charset.StandardCharsets.UTF_8;
/**
* Helper methods to implement SQL functions in generated code.
*
* Not present: and, or, not (builtin operators are better, because they
* use lazy evaluation. Implementations do not check for null values; the
* calling code must do that.
*
* Many of the functions do not check for null values. This is intentional.
* If null arguments are possible, the code-generation framework checks for
* nulls before calling the functions.
*/
@SuppressWarnings("UnnecessaryUnboxing")
@Deterministic
public class SqlFunctions {
private static final DecimalFormat DOUBLE_FORMAT =
NumberUtil.decimalFormat("0.0E0");
private static final TimeZone LOCAL_TZ = TimeZone.getDefault();
private static final DateTimeFormatter ROOT_DAY_FORMAT =
DateTimeFormatter.ofPattern("EEEE", Locale.ROOT);
private static final DateTimeFormatter ROOT_MONTH_FORMAT =
DateTimeFormatter.ofPattern("MMMM", Locale.ROOT);
private static final Soundex SOUNDEX = new Soundex();
private static final int SOUNDEX_LENGTH = 4;
private static final Pattern FROM_BASE64_REGEXP = Pattern.com.hazelcast.com.ile("[\\t\\n\\r\\s]");
private static final Function1, Enumerable> LIST_AS_ENUMERABLE =
Linq4j::asEnumerable;
// It's important to have XDigit before Digit to match XDigit first
// (i.e. see the posixRegex method)
private static final String[] POSIX_CHARACTER_CLASSES = new String[] { "Lower", "Upper", "ASCII",
"Alpha", "XDigit", "Digit", "Alnum", "Punct", "Graph", "Print", "Blank", "Cntrl", "Space" };
private static final Function1> ARRAY_CARTESIAN_PRODUCT =
lists -> {
final List> enumerators = new ArrayList<>();
for (Object list : lists) {
enumerators.add(Linq4j.enumerator((List) list));
}
final Enumerator> product = Linq4j.product(enumerators);
return new AbstractEnumerable() {
public Enumerator enumerator() {
return Linq4j.transform(product, List::toArray);
}
};
};
/** Holds, for each thread, a map from sequence name to sequence current
* value.
*
* This is a straw man of an implementation whose main goal is to prove
* that sequences can be parsed, validated and planned. A real application
* will want persistent values for sequences, shared among threads. */
private static final ThreadLocal> THREAD_SEQUENCES =
ThreadLocal.withInitial(HashMap::new);
private static final Pattern PATTERN_0_STAR_E = Pattern.com.hazelcast.com.ile("0*E");
private SqlFunctions() {
}
/** SQL TO_BASE64(string) function. */
public static String toBase64(String string) {
return toBase64_(string.getBytes(UTF_8));
}
/** SQL TO_BASE64(string) function for binary string. */
public static String toBase64(ByteString string) {
return toBase64_(string.getBytes());
}
private static String toBase64_(byte[] bytes) {
String base64 = Base64.getEncoder().encodeToString(bytes);
StringBuilder str = new StringBuilder(base64.length() + base64.length() / 76);
Splitter.fixedLength(76).split(base64).iterator().forEachRemaining(s -> {
str.append(s);
str.append("\n");
});
return str.substring(0, str.length() - 1);
}
/** SQL FROM_BASE64(string) function. */
public static ByteString fromBase64(String base64) {
try {
base64 = FROM_BASE64_REGEXP.matcher(base64).replaceAll("");
return new ByteString(Base64.getDecoder().decode(base64));
} catch (IllegalArgumentException e) {
return null;
}
}
/** SQL MD5(string) function. */
public static @Nonnull String md5(@Nonnull String string) {
return DigestUtils.md5Hex(string.getBytes(UTF_8));
}
/** SQL MD5(string) function for binary string. */
public static @Nonnull String md5(@Nonnull ByteString string) {
return DigestUtils.md5Hex(string.getBytes());
}
/** SQL SHA1(string) function. */
public static @Nonnull String sha1(@Nonnull String string) {
return DigestUtils.sha1Hex(string.getBytes(UTF_8));
}
/** SQL SHA1(string) function for binary string. */
public static @Nonnull String sha1(@Nonnull ByteString string) {
return DigestUtils.sha1Hex(string.getBytes());
}
/** SQL {@code REGEXP_REPLACE} function with 3 arguments. */
public static String regexpReplace(String s, String regex,
String replacement) {
return regexpReplace(s, regex, replacement, 1, 0, null);
}
/** SQL {@code REGEXP_REPLACE} function with 4 arguments. */
public static String regexpReplace(String s, String regex, String replacement,
int pos) {
return regexpReplace(s, regex, replacement, pos, 0, null);
}
/** SQL {@code REGEXP_REPLACE} function with 5 arguments. */
public static String regexpReplace(String s, String regex, String replacement,
int pos, int occurrence) {
return regexpReplace(s, regex, replacement, pos, occurrence, null);
}
/** SQL {@code REGEXP_REPLACE} function with 6 arguments. */
public static String regexpReplace(String s, String regex, String replacement,
int pos, int occurrence, String matchType) {
if (pos < 1 || pos > s.length()) {
throw RESOURCE.invalidInputForRegexpReplace(Integer.toString(pos)).ex();
}
final int flags = makeRegexpFlags(matchType);
final Pattern pattern = Pattern.com.hazelcast.com.ile(regex, flags);
return Unsafe.regexpReplace(s, pattern, replacement, pos, occurrence);
}
private static int makeRegexpFlags(String stringFlags) {
int flags = 0;
if (stringFlags != null) {
for (int i = 0; i < stringFlags.length(); ++i) {
switch (stringFlags.charAt(i)) {
case 'i':
flags |= Pattern.CASE_INSENSITIVE;
break;
case 'c':
flags &= ~Pattern.CASE_INSENSITIVE;
break;
case 'n':
flags |= Pattern.DOTALL;
break;
case 'm':
flags |= Pattern.MULTILINE;
break;
default:
throw RESOURCE.invalidInputForRegexpReplace(stringFlags).ex();
}
}
}
return flags;
}
/** SQL SUBSTRING(string FROM ... FOR ...) function. */
public static String substring(String c, int s, int l) {
int lc = c.length();
if (s < 0) {
s += lc + 1;
}
int e = s + l;
if (e < s) {
throw RESOURCE.illegalNegativeSubstringLength().ex();
}
if (s > lc || e < 1) {
return "";
}
int s1 = Math.max(s, 1);
int e1 = Math.min(e, lc + 1);
return c.substring(s1 - 1, e1 - 1);
}
/** SQL SUBSTRING(string FROM ...) function. */
public static String substring(String c, int s) {
return substring(c, s, c.length() + 1);
}
/** SQL SUBSTRING(binary FROM ... FOR ...) function. */
public static ByteString substring(ByteString c, int s, int l) {
int lc = c.length();
if (s < 0) {
s += lc + 1;
}
int e = s + l;
if (e < s) {
throw RESOURCE.illegalNegativeSubstringLength().ex();
}
if (s > lc || e < 1) {
return ByteString.EMPTY;
}
int s1 = Math.max(s, 1);
int e1 = Math.min(e, lc + 1);
return c.substring(s1 - 1, e1 - 1);
}
/** SQL SUBSTRING(binary FROM ...) function. */
public static ByteString substring(ByteString c, int s) {
return substring(c, s, c.length() + 1);
}
/** SQL UPPER(string) function. */
public static String upper(String s) {
return s.toUpperCase(Locale.ROOT);
}
/** SQL LOWER(string) function. */
public static String lower(String s) {
return s.toLowerCase(Locale.ROOT);
}
/** SQL INITCAP(string) function. */
public static String initcap(String s) {
// Assumes Alpha as [A-Za-z0-9]
// white space is treated as everything else.
final int len = s.length();
boolean start = true;
final StringBuilder newS = new StringBuilder();
for (int i = 0; i < len; i++) {
char curCh = s.charAt(i);
final int c = (int) curCh;
if (start) { // curCh is whitespace or first character of word.
if (c > 47 && c < 58) { // 0-9
start = false;
} else if (c > 64 && c < 91) { // A-Z
start = false;
} else if (c > 96 && c < 123) { // a-z
start = false;
curCh = (char) (c - 32); // Uppercase this character
}
// else {} whitespace
} else { // Inside of a word or white space after end of word.
if (c > 47 && c < 58) { // 0-9
// noop
} else if (c > 64 && c < 91) { // A-Z
curCh = (char) (c + 32); // Lowercase this character
} else if (c > 96 && c < 123) { // a-z
// noop
} else { // whitespace
start = true;
}
}
newS.append(curCh);
} // for each character in s
return newS.toString();
}
/** SQL REVERSE(string) function. */
public static String reverse(String s) {
final StringBuilder buf = new StringBuilder(s);
return buf.reverse().toString();
}
/** SQL ASCII(string) function. */
public static int ascii(String s) {
return s.isEmpty()
? 0 : s.codePointAt(0);
}
/** SQL REPEAT(string, int) function. */
public static String repeat(String s, int n) {
if (n < 1) {
return "";
}
return Strings.repeat(s, n);
}
/** SQL SPACE(int) function. */
public static String space(int n) {
return repeat(" ", n);
}
/** SQL STRCMP(String,String) function. */
public static int strcmp(String s0, String s1) {
return (int) Math.signum(s1.com.hazelcast.com.areTo(s0));
}
/** SQL SOUNDEX(string) function. */
public static String soundex(String s) {
return SOUNDEX.soundex(s);
}
/** SQL DIFFERENCE(string, string) function. */
public static int difference(String s0, String s1) {
String result0 = soundex(s0);
String result1 = soundex(s1);
for (int i = 0; i < SOUNDEX_LENGTH; i++) {
if (result0.charAt(i) != result1.charAt(i)) {
return i;
}
}
return SOUNDEX_LENGTH;
}
/** SQL LEFT(string, integer) function. */
public static @Nonnull String left(@Nonnull String s, int n) {
if (n <= 0) {
return "";
}
int len = s.length();
if (n >= len) {
return s;
}
return s.substring(0, n);
}
/** SQL LEFT(ByteString, integer) function. */
public static @Nonnull ByteString left(@Nonnull ByteString s, int n) {
if (n <= 0) {
return ByteString.EMPTY;
}
int len = s.length();
if (n >= len) {
return s;
}
return s.substring(0, n);
}
/** SQL RIGHT(string, integer) function. */
public static @Nonnull String right(@Nonnull String s, int n) {
if (n <= 0) {
return "";
}
int len = s.length();
if (n >= len) {
return s;
}
return s.substring(len - n);
}
/** SQL RIGHT(ByteString, integer) function. */
public static @Nonnull ByteString right(@Nonnull ByteString s, int n) {
if (n <= 0) {
return ByteString.EMPTY;
}
final int len = s.length();
if (n >= len) {
return s;
}
return s.substring(len - n);
}
/** SQL CHR(long) function. */
public static String chr(long n) {
return String.valueOf(Character.toChars((int) n));
}
/** SQL CHARACTER_LENGTH(string) function. */
public static int charLength(String s) {
return s.length();
}
/** SQL {@code string || string} operator. */
public static String concat(String s0, String s1) {
return s0 + s1;
}
/** SQL {@code binary || binary} operator. */
public static ByteString concat(ByteString s0, ByteString s1) {
return s0.concat(s1);
}
/** SQL {@code concat(arg0, arg1, arg2, ...)} function. */
public static String concat(String... args) {
return String.join("", args);
}
/** SQL {@code RTRIM} function applied to string. */
public static String rtrim(String s) {
return trim(false, true, " ", s);
}
/** SQL {@code LTRIM} function. */
public static String ltrim(String s) {
return trim(true, false, " ", s);
}
/** SQL {@code TRIM(... seek FROM s)} function. */
public static String trim(boolean left, boolean right, String seek,
String s) {
return trim(left, right, seek, s, true);
}
public static String trim(boolean left, boolean right, String seek,
String s, boolean strict) {
if (strict && seek.length() != 1) {
throw RESOURCE.trimError().ex();
}
int j = s.length();
if (right) {
for (;;) {
if (j == 0) {
return "";
}
if (seek.indexOf(s.charAt(j - 1)) < 0) {
break;
}
--j;
}
}
int i = 0;
if (left) {
for (;;) {
if (i == j) {
return "";
}
if (seek.indexOf(s.charAt(i)) < 0) {
break;
}
++i;
}
}
return s.substring(i, j);
}
/** SQL {@code TRIM} function applied to binary string. */
public static ByteString trim(ByteString s) {
return trim_(s, true, true);
}
/** Helper for CAST. */
public static ByteString rtrim(ByteString s) {
return trim_(s, false, true);
}
/** SQL {@code TRIM} function applied to binary string. */
private static ByteString trim_(ByteString s, boolean left, boolean right) {
int j = s.length();
if (right) {
for (;;) {
if (j == 0) {
return ByteString.EMPTY;
}
if (s.byteAt(j - 1) != 0) {
break;
}
--j;
}
}
int i = 0;
if (left) {
for (;;) {
if (i == j) {
return ByteString.EMPTY;
}
if (s.byteAt(i) != 0) {
break;
}
++i;
}
}
return s.substring(i, j);
}
/** SQL {@code OVERLAY} function. */
public static String overlay(String s, String r, int start) {
return s.substring(0, start - 1)
+ r
+ s.substring(start - 1 + r.length());
}
/** SQL {@code OVERLAY} function. */
public static String overlay(String s, String r, int start, int length) {
return s.substring(0, start - 1)
+ r
+ s.substring(start - 1 + length);
}
/** SQL {@code OVERLAY} function applied to binary strings. */
public static ByteString overlay(ByteString s, ByteString r, int start) {
return s.substring(0, start - 1)
.concat(r)
.concat(s.substring(start - 1 + r.length()));
}
/** SQL {@code OVERLAY} function applied to binary strings. */
public static ByteString overlay(ByteString s, ByteString r, int start,
int length) {
return s.substring(0, start - 1)
.concat(r)
.concat(s.substring(start - 1 + length));
}
/** SQL {@code LIKE} function. */
public static boolean like(String s, String pattern) {
final String regex = Like.sqlToRegexLike(pattern, null);
return Pattern.matches(regex, s);
}
/** SQL {@code LIKE} function with escape. */
public static boolean like(String s, String pattern, String escape) {
final String regex = Like.sqlToRegexLike(pattern, escape);
return Pattern.matches(regex, s);
}
/** SQL {@code SIMILAR} function. */
public static boolean similar(String s, String pattern) {
final String regex = Like.sqlToRegexSimilar(pattern, null);
return Pattern.matches(regex, s);
}
/** SQL {@code SIMILAR} function with escape. */
public static boolean similar(String s, String pattern, String escape) {
final String regex = Like.sqlToRegexSimilar(pattern, escape);
return Pattern.matches(regex, s);
}
public static boolean posixRegex(String s, String regex, Boolean caseSensitive) {
// Replace existing character classes with java equivalent ones
String originalRegex = regex;
String[] existingExpressions = Arrays.stream(POSIX_CHARACTER_CLASSES)
.filter(v -> originalRegex.contains(v.toLowerCase(Locale.ROOT))).toArray(String[]::new);
for (String v : existingExpressions) {
regex = regex.replace(v.toLowerCase(Locale.ROOT), "\\p{" + v + "}");
}
int flags = caseSensitive ? 0 : Pattern.CASE_INSENSITIVE;
return Pattern.com.hazelcast.com.ile(regex, flags).matcher(s).find();
}
// =
/** SQL = operator applied to BigDecimal values (neither may be
* null). */
public static boolean eq(BigDecimal b0, BigDecimal b1) {
return b0.stripTrailingZeros().equals(b1.stripTrailingZeros());
}
/** SQL = operator applied to Object[] values (neither may be
* null). */
public static boolean eq(Object[] b0, Object[] b1) {
return Arrays.deepEquals(b0, b1);
}
/** SQL = operator applied to Object values (including String;
* neither side may be null). */
public static boolean eq(Object b0, Object b1) {
return b0.equals(b1);
}
/** SQL = operator applied to Object values (at least one operand
* has ANY type; neither may be null). */
public static boolean eqAny(Object b0, Object b1) {
if (b0.getClass().equals(b1.getClass())) {
// The result of SqlFunctions.eq(BigDecimal, BigDecimal) makes more sense
// than BigDecimal.equals(BigDecimal). So if both of types are BigDecimal,
// we just use SqlFunctions.eq(BigDecimal, BigDecimal).
if (BigDecimal.class.isInstance(b0)) {
return eq((BigDecimal) b0, (BigDecimal) b1);
} else {
return b0.equals(b1);
}
} else if (allAssignable(Number.class, b0, b1)) {
return eq(toBigDecimal((Number) b0), toBigDecimal((Number) b1));
}
// We shouldn't rely on implementation even though overridden equals can
// handle other types which may create worse result: for example,
// a.equals(b) != b.equals(a)
return false;
}
/** Returns whether two objects can both be assigned to a given class. */
private static boolean allAssignable(Class clazz, Object o0, Object o1) {
return clazz.isInstance(o0) && clazz.isInstance(o1);
}
// <>
/** SQL <gt; operator applied to BigDecimal values. */
public static boolean ne(BigDecimal b0, BigDecimal b1) {
return b0.com.hazelcast.com.areTo(b1) != 0;
}
/** SQL <gt; operator applied to Object values (including
* String; neither side may be null). */
public static boolean ne(Object b0, Object b1) {
return !eq(b0, b1);
}
/** SQL <gt; operator applied to Object values (at least one
* operand has ANY type, including String; neither may be null). */
public static boolean neAny(Object b0, Object b1) {
return !eqAny(b0, b1);
}
// <
/** SQL < operator applied to boolean values. */
public static boolean lt(boolean b0, boolean b1) {
return com.hazelcast.com.are(b0, b1) < 0;
}
/** SQL < operator applied to String values. */
public static boolean lt(String b0, String b1) {
return b0.com.hazelcast.com.areTo(b1) < 0;
}
/** SQL < operator applied to ByteString values. */
public static boolean lt(ByteString b0, ByteString b1) {
return b0.com.hazelcast.com.areTo(b1) < 0;
}
/** SQL < operator applied to BigDecimal values. */
public static boolean lt(BigDecimal b0, BigDecimal b1) {
return b0.com.hazelcast.com.areTo(b1) < 0;
}
/** SQL < operator applied to Object values. */
public static boolean ltAny(Object b0, Object b1) {
if (b0.getClass().equals(b1.getClass())
&& b0 instanceof Comparable) {
//noinspection unchecked
return ((Comparable) b0).com.hazelcast.com.areTo(b1) < 0;
} else if (allAssignable(Number.class, b0, b1)) {
return lt(toBigDecimal((Number) b0), toBigDecimal((Number) b1));
}
throw notComparable("<", b0, b1);
}
// <=
/** SQL ≤ operator applied to boolean values. */
public static boolean le(boolean b0, boolean b1) {
return com.hazelcast.com.are(b0, b1) <= 0;
}
/** SQL ≤ operator applied to String values. */
public static boolean le(String b0, String b1) {
return b0.com.hazelcast.com.areTo(b1) <= 0;
}
/** SQL ≤ operator applied to ByteString values. */
public static boolean le(ByteString b0, ByteString b1) {
return b0.com.hazelcast.com.areTo(b1) <= 0;
}
/** SQL ≤ operator applied to BigDecimal values. */
public static boolean le(BigDecimal b0, BigDecimal b1) {
return b0.com.hazelcast.com.areTo(b1) <= 0;
}
/** SQL ≤ operator applied to Object values (at least one
* operand has ANY type; neither may be null). */
public static boolean leAny(Object b0, Object b1) {
if (b0.getClass().equals(b1.getClass())
&& b0 instanceof Comparable) {
//noinspection unchecked
return ((Comparable) b0).com.hazelcast.com.areTo(b1) <= 0;
} else if (allAssignable(Number.class, b0, b1)) {
return le(toBigDecimal((Number) b0), toBigDecimal((Number) b1));
}
throw notComparable("<=", b0, b1);
}
// >
/** SQL > operator applied to boolean values. */
public static boolean gt(boolean b0, boolean b1) {
return com.hazelcast.com.are(b0, b1) > 0;
}
/** SQL > operator applied to String values. */
public static boolean gt(String b0, String b1) {
return b0.com.hazelcast.com.areTo(b1) > 0;
}
/** SQL > operator applied to ByteString values. */
public static boolean gt(ByteString b0, ByteString b1) {
return b0.com.hazelcast.com.areTo(b1) > 0;
}
/** SQL > operator applied to BigDecimal values. */
public static boolean gt(BigDecimal b0, BigDecimal b1) {
return b0.com.hazelcast.com.areTo(b1) > 0;
}
/** SQL > operator applied to Object values (at least one
* operand has ANY type; neither may be null). */
public static boolean gtAny(Object b0, Object b1) {
if (b0.getClass().equals(b1.getClass())
&& b0 instanceof Comparable) {
//noinspection unchecked
return ((Comparable) b0).com.hazelcast.com.areTo(b1) > 0;
} else if (allAssignable(Number.class, b0, b1)) {
return gt(toBigDecimal((Number) b0), toBigDecimal((Number) b1));
}
throw notComparable(">", b0, b1);
}
// >=
/** SQL ≥ operator applied to boolean values. */
public static boolean ge(boolean b0, boolean b1) {
return com.hazelcast.com.are(b0, b1) >= 0;
}
/** SQL ≥ operator applied to String values. */
public static boolean ge(String b0, String b1) {
return b0.com.hazelcast.com.areTo(b1) >= 0;
}
/** SQL ≥ operator applied to ByteString values. */
public static boolean ge(ByteString b0, ByteString b1) {
return b0.com.hazelcast.com.areTo(b1) >= 0;
}
/** SQL ≥ operator applied to BigDecimal values. */
public static boolean ge(BigDecimal b0, BigDecimal b1) {
return b0.com.hazelcast.com.areTo(b1) >= 0;
}
/** SQL ≥ operator applied to Object values (at least one
* operand has ANY type; neither may be null). */
public static boolean geAny(Object b0, Object b1) {
if (b0.getClass().equals(b1.getClass())
&& b0 instanceof Comparable) {
//noinspection unchecked
return ((Comparable) b0).com.hazelcast.com.areTo(b1) >= 0;
} else if (allAssignable(Number.class, b0, b1)) {
return ge(toBigDecimal((Number) b0), toBigDecimal((Number) b1));
}
throw notComparable(">=", b0, b1);
}
// +
/** SQL + operator applied to int values. */
public static int plus(int b0, int b1) {
return b0 + b1;
}
/** SQL + operator applied to int values; left side may be
* null. */
public static Integer plus(Integer b0, int b1) {
return b0 == null ? null : (b0 + b1);
}
/** SQL + operator applied to int values; right side may be
* null. */
public static Integer plus(int b0, Integer b1) {
return b1 == null ? null : (b0 + b1);
}
/** SQL + operator applied to nullable int values. */
public static Integer plus(Integer b0, Integer b1) {
return (b0 == null || b1 == null) ? null : (b0 + b1);
}
/** SQL + operator applied to nullable long and int values. */
public static Long plus(Long b0, Integer b1) {
return (b0 == null || b1 == null)
? null
: (b0.longValue() + b1.longValue());
}
/** SQL + operator applied to nullable int and long values. */
public static Long plus(Integer b0, Long b1) {
return (b0 == null || b1 == null)
? null
: (b0.longValue() + b1.longValue());
}
/** SQL + operator applied to BigDecimal values. */
public static BigDecimal plus(BigDecimal b0, BigDecimal b1) {
return (b0 == null || b1 == null) ? null : b0.add(b1);
}
/** SQL + operator applied to Object values (at least one operand
* has ANY type; either may be null). */
public static Object plusAny(Object b0, Object b1) {
if (b0 == null || b1 == null) {
return null;
}
if (allAssignable(Number.class, b0, b1)) {
return plus(toBigDecimal((Number) b0), toBigDecimal((Number) b1));
}
throw notArithmetic("+", b0, b1);
}
// -
/** SQL - operator applied to int values. */
public static int minus(int b0, int b1) {
return b0 - b1;
}
/** SQL - operator applied to int values; left side may be
* null. */
public static Integer minus(Integer b0, int b1) {
return b0 == null ? null : (b0 - b1);
}
/** SQL - operator applied to int values; right side may be
* null. */
public static Integer minus(int b0, Integer b1) {
return b1 == null ? null : (b0 - b1);
}
/** SQL - operator applied to nullable int values. */
public static Integer minus(Integer b0, Integer b1) {
return (b0 == null || b1 == null) ? null : (b0 - b1);
}
/** SQL - operator applied to nullable long and int values. */
public static Long minus(Long b0, Integer b1) {
return (b0 == null || b1 == null)
? null
: (b0.longValue() - b1.longValue());
}
/** SQL - operator applied to nullable int and long values. */
public static Long minus(Integer b0, Long b1) {
return (b0 == null || b1 == null)
? null
: (b0.longValue() - b1.longValue());
}
/** SQL - operator applied to BigDecimal values. */
public static BigDecimal minus(BigDecimal b0, BigDecimal b1) {
return (b0 == null || b1 == null) ? null : b0.subtract(b1);
}
/** SQL - operator applied to Object values (at least one operand
* has ANY type; either may be null). */
public static Object minusAny(Object b0, Object b1) {
if (b0 == null || b1 == null) {
return null;
}
if (allAssignable(Number.class, b0, b1)) {
return minus(toBigDecimal((Number) b0), toBigDecimal((Number) b1));
}
throw notArithmetic("-", b0, b1);
}
// /
/** SQL / operator applied to int values. */
public static int divide(int b0, int b1) {
return b0 / b1;
}
/** SQL / operator applied to int values; left side may be
* null. */
public static Integer divide(Integer b0, int b1) {
return b0 == null ? null : (b0 / b1);
}
/** SQL / operator applied to int values; right side may be
* null. */
public static Integer divide(int b0, Integer b1) {
return b1 == null ? null : (b0 / b1);
}
/** SQL / operator applied to nullable int values. */
public static Integer divide(Integer b0, Integer b1) {
return (b0 == null || b1 == null) ? null : (b0 / b1);
}
/** SQL / operator applied to nullable long and int values. */
public static Long divide(Long b0, Integer b1) {
return (b0 == null || b1 == null)
? null
: (b0.longValue() / b1.longValue());
}
/** SQL / operator applied to nullable int and long values. */
public static Long divide(Integer b0, Long b1) {
return (b0 == null || b1 == null)
? null
: (b0.longValue() / b1.longValue());
}
/** SQL / operator applied to BigDecimal values. */
public static BigDecimal divide(BigDecimal b0, BigDecimal b1) {
return (b0 == null || b1 == null)
? null
: b0.divide(b1, MathContext.DECIMAL64);
}
/** SQL / operator applied to Object values (at least one operand
* has ANY type; either may be null). */
public static Object divideAny(Object b0, Object b1) {
if (b0 == null || b1 == null) {
return null;
}
if (allAssignable(Number.class, b0, b1)) {
return divide(toBigDecimal((Number) b0), toBigDecimal((Number) b1));
}
throw notArithmetic("/", b0, b1);
}
public static int divide(int b0, BigDecimal b1) {
return BigDecimal.valueOf(b0)
.divide(b1, RoundingMode.HALF_DOWN).intValue();
}
public static long divide(long b0, BigDecimal b1) {
return BigDecimal.valueOf(b0)
.divide(b1, RoundingMode.HALF_DOWN).longValue();
}
// *
/** SQL * operator applied to int values. */
public static int multiply(int b0, int b1) {
return b0 * b1;
}
/** SQL * operator applied to int values; left side may be
* null. */
public static Integer multiply(Integer b0, int b1) {
return b0 == null ? null : (b0 * b1);
}
/** SQL * operator applied to int values; right side may be
* null. */
public static Integer multiply(int b0, Integer b1) {
return b1 == null ? null : (b0 * b1);
}
/** SQL * operator applied to nullable int values. */
public static Integer multiply(Integer b0, Integer b1) {
return (b0 == null || b1 == null) ? null : (b0 * b1);
}
/** SQL * operator applied to nullable long and int values. */
public static Long multiply(Long b0, Integer b1) {
return (b0 == null || b1 == null)
? null
: (b0.longValue() * b1.longValue());
}
/** SQL * operator applied to nullable int and long values. */
public static Long multiply(Integer b0, Long b1) {
return (b0 == null || b1 == null)
? null
: (b0.longValue() * b1.longValue());
}
/** SQL * operator applied to BigDecimal values. */
public static BigDecimal multiply(BigDecimal b0, BigDecimal b1) {
return (b0 == null || b1 == null) ? null : b0.multiply(b1);
}
/** SQL * operator applied to Object values (at least one operand
* has ANY type; either may be null). */
public static Object multiplyAny(Object b0, Object b1) {
if (b0 == null || b1 == null) {
return null;
}
if (allAssignable(Number.class, b0, b1)) {
return multiply(toBigDecimal((Number) b0), toBigDecimal((Number) b1));
}
throw notArithmetic("*", b0, b1);
}
private static RuntimeException notArithmetic(String op, Object b0,
Object b1) {
return RESOURCE.invalidTypesForArithmetic(b0.getClass().toString(),
op, b1.getClass().toString()).ex();
}
private static RuntimeException notComparable(String op, Object b0,
Object b1) {
return RESOURCE.invalidTypesForComparison(b0.getClass().toString(),
op, b1.getClass().toString()).ex();
}
// &
/** Helper function for implementing BIT_AND */
public static long bitAnd(long b0, long b1) {
return b0 & b1;
}
// |
/** Helper function for implementing BIT_OR */
public static long bitOr(long b0, long b1) {
return b0 | b1;
}
// ^
/** Helper function for implementing BIT_XOR */
public static long bitXor(long b0, long b1) {
return b0 ^ b1;
}
// EXP
/** SQL EXP operator applied to double values. */
public static double exp(double b0) {
return Math.exp(b0);
}
public static double exp(BigDecimal b0) {
return Math.exp(b0.doubleValue());
}
// POWER
/** SQL POWER operator applied to double values. */
public static double power(double b0, double b1) {
return Math.pow(b0, b1);
}
public static double power(double b0, BigDecimal b1) {
return Math.pow(b0, b1.doubleValue());
}
public static double power(BigDecimal b0, double b1) {
return Math.pow(b0.doubleValue(), b1);
}
public static double power(BigDecimal b0, BigDecimal b1) {
return Math.pow(b0.doubleValue(), b1.doubleValue());
}
// LN
/** SQL {@code LN(number)} function applied to double values. */
public static double ln(double d) {
return Math.log(d);
}
/** SQL {@code LN(number)} function applied to BigDecimal values. */
public static double ln(BigDecimal d) {
return Math.log(d.doubleValue());
}
// LOG10
/** SQL LOG10(numeric) operator applied to double values. */
public static double log10(double b0) {
return Math.log10(b0);
}
/** SQL {@code LOG10(number)} function applied to BigDecimal values. */
public static double log10(BigDecimal d) {
return Math.log10(d.doubleValue());
}
// MOD
/** SQL MOD operator applied to byte values. */
public static byte mod(byte b0, byte b1) {
return (byte) (b0 % b1);
}
/** SQL MOD operator applied to short values. */
public static short mod(short b0, short b1) {
return (short) (b0 % b1);
}
/** SQL MOD operator applied to int values. */
public static int mod(int b0, int b1) {
return b0 % b1;
}
/** SQL MOD operator applied to long values. */
public static long mod(long b0, long b1) {
return b0 % b1;
}
// temporary
public static BigDecimal mod(BigDecimal b0, int b1) {
return mod(b0, BigDecimal.valueOf(b1));
}
// temporary
public static BigDecimal mod(int b0, BigDecimal b1) {
return mod(BigDecimal.valueOf(b0), b1);
}
public static BigDecimal mod(BigDecimal b0, BigDecimal b1) {
final BigDecimal[] bigDecimals = b0.divideAndRemainder(b1);
return bigDecimals[1];
}
// FLOOR
public static double floor(double b0) {
return Math.floor(b0);
}
public static float floor(float b0) {
return (float) Math.floor(b0);
}
public static BigDecimal floor(BigDecimal b0) {
return b0.setScale(0, RoundingMode.FLOOR);
}
/** SQL FLOOR operator applied to byte values. */
public static byte floor(byte b0, byte b1) {
return (byte) floor((int) b0, (int) b1);
}
/** SQL FLOOR operator applied to short values. */
public static short floor(short b0, short b1) {
return (short) floor((int) b0, (int) b1);
}
/** SQL FLOOR operator applied to int values. */
public static int floor(int b0, int b1) {
int r = b0 % b1;
if (r < 0) {
r += b1;
}
return b0 - r;
}
/** SQL FLOOR operator applied to long values. */
public static long floor(long b0, long b1) {
long r = b0 % b1;
if (r < 0) {
r += b1;
}
return b0 - r;
}
// temporary
public static BigDecimal floor(BigDecimal b0, int b1) {
return floor(b0, BigDecimal.valueOf(b1));
}
// temporary
public static int floor(int b0, BigDecimal b1) {
return floor(b0, b1.intValue());
}
public static BigDecimal floor(BigDecimal b0, BigDecimal b1) {
final BigDecimal[] bigDecimals = b0.divideAndRemainder(b1);
BigDecimal r = bigDecimals[1];
if (r.signum() < 0) {
r = r.add(b1);
}
return b0.subtract(r);
}
// CEIL
public static double ceil(double b0) {
return Math.ceil(b0);
}
public static float ceil(float b0) {
return (float) Math.ceil(b0);
}
public static BigDecimal ceil(BigDecimal b0) {
return b0.setScale(0, RoundingMode.CEILING);
}
/** SQL CEIL operator applied to byte values. */
public static byte ceil(byte b0, byte b1) {
return floor((byte) (b0 + b1 - 1), b1);
}
/** SQL CEIL operator applied to short values. */
public static short ceil(short b0, short b1) {
return floor((short) (b0 + b1 - 1), b1);
}
/** SQL CEIL operator applied to int values. */
public static int ceil(int b0, int b1) {
int r = b0 % b1;
if (r > 0) {
r -= b1;
}
return b0 - r;
}
/** SQL CEIL operator applied to long values. */
public static long ceil(long b0, long b1) {
return floor(b0 + b1 - 1, b1);
}
// temporary
public static BigDecimal ceil(BigDecimal b0, int b1) {
return ceil(b0, BigDecimal.valueOf(b1));
}
// temporary
public static int ceil(int b0, BigDecimal b1) {
return ceil(b0, b1.intValue());
}
public static BigDecimal ceil(BigDecimal b0, BigDecimal b1) {
final BigDecimal[] bigDecimals = b0.divideAndRemainder(b1);
BigDecimal r = bigDecimals[1];
if (r.signum() > 0) {
r = r.subtract(b1);
}
return b0.subtract(r);
}
// ABS
/** SQL ABS operator applied to byte values. */
public static byte abs(byte b0) {
return (byte) Math.abs(b0);
}
/** SQL ABS operator applied to short values. */
public static short abs(short b0) {
return (short) Math.abs(b0);
}
/** SQL ABS operator applied to int values. */
public static int abs(int b0) {
return Math.abs(b0);
}
/** SQL ABS operator applied to long values. */
public static long abs(long b0) {
return Math.abs(b0);
}
/** SQL ABS operator applied to float values. */
public static float abs(float b0) {
return Math.abs(b0);
}
/** SQL ABS operator applied to double values. */
public static double abs(double b0) {
return Math.abs(b0);
}
/** SQL ABS operator applied to BigDecimal values. */
public static BigDecimal abs(BigDecimal b0) {
return b0.abs();
}
// ACOS
/** SQL ACOS operator applied to BigDecimal values. */
public static double acos(BigDecimal b0) {
return Math.acos(b0.doubleValue());
}
/** SQL ACOS operator applied to double values. */
public static double acos(double b0) {
return Math.acos(b0);
}
// ASIN
/** SQL ASIN operator applied to BigDecimal values. */
public static double asin(BigDecimal b0) {
return Math.asin(b0.doubleValue());
}
/** SQL ASIN operator applied to double values. */
public static double asin(double b0) {
return Math.asin(b0);
}
// ATAN
/** SQL ATAN operator applied to BigDecimal values. */
public static double atan(BigDecimal b0) {
return Math.atan(b0.doubleValue());
}
/** SQL ATAN operator applied to double values. */
public static double atan(double b0) {
return Math.atan(b0);
}
// ATAN2
/** SQL ATAN2 operator applied to double/BigDecimal values. */
public static double atan2(double b0, BigDecimal b1) {
return Math.atan2(b0, b1.doubleValue());
}
/** SQL ATAN2 operator applied to BigDecimal/double values. */
public static double atan2(BigDecimal b0, double b1) {
return Math.atan2(b0.doubleValue(), b1);
}
/** SQL ATAN2 operator applied to BigDecimal values. */
public static double atan2(BigDecimal b0, BigDecimal b1) {
return Math.atan2(b0.doubleValue(), b1.doubleValue());
}
/** SQL ATAN2 operator applied to double values. */
public static double atan2(double b0, double b1) {
return Math.atan2(b0, b1);
}
// CBRT
/** SQL CBRT operator applied to BigDecimal values. */
public static double cbrt(BigDecimal b) {
return cbrt(b.doubleValue());
}
/** SQL CBRT operator applied to double values. */
public static double cbrt(double b) {
return Math.cbrt(b);
}
// COS
/** SQL COS operator applied to BigDecimal values. */
public static double cos(BigDecimal b0) {
return Math.cos(b0.doubleValue());
}
/** SQL COS operator applied to double values. */
public static double cos(double b0) {
return Math.cos(b0);
}
// COSH
/** SQL COSH operator applied to BigDecimal values. */
public static double cosh(BigDecimal b) {
return cosh(b.doubleValue());
}
/** SQL COSH operator applied to double values. */
public static double cosh(double b) {
return Math.cosh(b);
}
// COT
/** SQL COT operator applied to BigDecimal values. */
public static double cot(BigDecimal b0) {
return 1.0d / Math.tan(b0.doubleValue());
}
/** SQL COT operator applied to double values. */
public static double cot(double b0) {
return 1.0d / Math.tan(b0);
}
// DEGREES
/** SQL DEGREES operator applied to BigDecimal values. */
public static double degrees(BigDecimal b0) {
return Math.toDegrees(b0.doubleValue());
}
/** SQL DEGREES operator applied to double values. */
public static double degrees(double b0) {
return Math.toDegrees(b0);
}
// RADIANS
/** SQL RADIANS operator applied to BigDecimal values. */
public static double radians(BigDecimal b0) {
return Math.toRadians(b0.doubleValue());
}
/** SQL RADIANS operator applied to double values. */
public static double radians(double b0) {
return Math.toRadians(b0);
}
// SQL ROUND
/** SQL ROUND operator applied to int values. */
public static int sround(int b0) {
return sround(b0, 0);
}
/** SQL ROUND operator applied to int values. */
public static int sround(int b0, int b1) {
return sround(BigDecimal.valueOf(b0), b1).intValue();
}
/** SQL ROUND operator applied to long values. */
public static long sround(long b0) {
return sround(b0, 0);
}
/** SQL ROUND operator applied to long values. */
public static long sround(long b0, int b1) {
return sround(BigDecimal.valueOf(b0), b1).longValue();
}
/** SQL ROUND operator applied to BigDecimal values. */
public static BigDecimal sround(BigDecimal b0) {
return sround(b0, 0);
}
/** SQL ROUND operator applied to BigDecimal values. */
public static BigDecimal sround(BigDecimal b0, int b1) {
return b0.movePointRight(b1)
.setScale(0, RoundingMode.HALF_UP).movePointLeft(b1);
}
/** SQL ROUND operator applied to double values. */
public static double sround(double b0) {
return sround(b0, 0);
}
/** SQL ROUND operator applied to double values. */
public static double sround(double b0, int b1) {
return sround(BigDecimal.valueOf(b0), b1).doubleValue();
}
// SQL TRUNCATE
/** SQL TRUNCATE operator applied to int values. */
public static int struncate(int b0) {
return struncate(b0, 0);
}
public static int struncate(int b0, int b1) {
return struncate(BigDecimal.valueOf(b0), b1).intValue();
}
/** SQL TRUNCATE operator applied to long values. */
public static long struncate(long b0) {
return struncate(b0, 0);
}
public static long struncate(long b0, int b1) {
return struncate(BigDecimal.valueOf(b0), b1).longValue();
}
/** SQL TRUNCATE operator applied to BigDecimal values. */
public static BigDecimal struncate(BigDecimal b0) {
return struncate(b0, 0);
}
public static BigDecimal struncate(BigDecimal b0, int b1) {
return b0.movePointRight(b1)
.setScale(0, RoundingMode.DOWN).movePointLeft(b1);
}
/** SQL TRUNCATE operator applied to double values. */
public static double struncate(double b0) {
return struncate(b0, 0);
}
public static double struncate(double b0, int b1) {
return struncate(BigDecimal.valueOf(b0), b1).doubleValue();
}
// SIGN
/** SQL SIGN operator applied to int values. */
public static int sign(int b0) {
return Integer.signum(b0);
}
/** SQL SIGN operator applied to long values. */
public static long sign(long b0) {
return Long.signum(b0);
}
/** SQL SIGN operator applied to BigDecimal values. */
public static BigDecimal sign(BigDecimal b0) {
return BigDecimal.valueOf(b0.signum());
}
/** SQL SIGN operator applied to double values. */
public static double sign(double b0) {
return Math.signum(b0);
}
// SIN
/** SQL SIN operator applied to BigDecimal values. */
public static double sin(BigDecimal b0) {
return Math.sin(b0.doubleValue());
}
/** SQL SIN operator applied to double values. */
public static double sin(double b0) {
return Math.sin(b0);
}
// SINH
/** SQL SINH operator applied to BigDecimal values. */
public static double sinh(BigDecimal b) {
return sinh(b.doubleValue());
}
/** SQL SINH operator applied to double values. */
public static double sinh(double b) {
return Math.sinh(b);
}
// TAN
/** SQL TAN operator applied to BigDecimal values. */
public static double tan(BigDecimal b0) {
return Math.tan(b0.doubleValue());
}
/** SQL TAN operator applied to double values. */
public static double tan(double b0) {
return Math.tan(b0);
}
// TANH
/** SQL TANH operator applied to BigDecimal values. */
public static double tanh(BigDecimal b) {
return tanh(b.doubleValue());
}
/** SQL TANH operator applied to double values. */
public static double tanh(double b) {
return Math.tanh(b);
}
// Helpers
/** Helper for implementing MIN. Somewhat similar to LEAST operator. */
public static > T lesser(T b0, T b1) {
return b0 == null || b0.com.hazelcast.com.areTo(b1) > 0 ? b1 : b0;
}
/** LEAST operator. */
public static > T least(T b0, T b1) {
return b0 == null || b1 != null && b0.com.hazelcast.com.areTo(b1) > 0 ? b1 : b0;
}
public static boolean greater(boolean b0, boolean b1) {
return b0 || b1;
}
public static boolean lesser(boolean b0, boolean b1) {
return b0 && b1;
}
public static byte greater(byte b0, byte b1) {
return b0 > b1 ? b0 : b1;
}
public static byte lesser(byte b0, byte b1) {
return b0 > b1 ? b1 : b0;
}
public static char greater(char b0, char b1) {
return b0 > b1 ? b0 : b1;
}
public static char lesser(char b0, char b1) {
return b0 > b1 ? b1 : b0;
}
public static short greater(short b0, short b1) {
return b0 > b1 ? b0 : b1;
}
public static short lesser(short b0, short b1) {
return b0 > b1 ? b1 : b0;
}
public static int greater(int b0, int b1) {
return b0 > b1 ? b0 : b1;
}
public static int lesser(int b0, int b1) {
return b0 > b1 ? b1 : b0;
}
public static long greater(long b0, long b1) {
return b0 > b1 ? b0 : b1;
}
public static long lesser(long b0, long b1) {
return b0 > b1 ? b1 : b0;
}
public static float greater(float b0, float b1) {
return b0 > b1 ? b0 : b1;
}
public static float lesser(float b0, float b1) {
return b0 > b1 ? b1 : b0;
}
public static double greater(double b0, double b1) {
return b0 > b1 ? b0 : b1;
}
public static double lesser(double b0, double b1) {
return b0 > b1 ? b1 : b0;
}
/** Helper for implementing MAX. Somewhat similar to GREATEST operator. */
public static > T greater(T b0, T b1) {
return b0 == null || b0.com.hazelcast.com.areTo(b1) < 0 ? b1 : b0;
}
/** GREATEST operator. */
public static > T greatest(T b0, T b1) {
return b0 == null || b1 != null && b0.com.hazelcast.com.areTo(b1) < 0 ? b1 : b0;
}
/** Boolean com.hazelcast.com.arison. */
public static int com.hazelcast.com.are(boolean x, boolean y) {
return x == y ? 0 : x ? 1 : -1;
}
/** CAST(FLOAT AS VARCHAR). */
public static String toString(float x) {
if (x == 0) {
return "0E0";
}
BigDecimal bigDecimal =
new BigDecimal(x, MathContext.DECIMAL32).stripTrailingZeros();
final String s = bigDecimal.toString();
return PATTERN_0_STAR_E.matcher(s).replaceAll("E").replace("E+", "E");
}
/** CAST(DOUBLE AS VARCHAR). */
public static String toString(double x) {
if (x == 0) {
return "0E0";
}
BigDecimal bigDecimal =
new BigDecimal(x, MathContext.DECIMAL64).stripTrailingZeros();
final String s = bigDecimal.toString();
return PATTERN_0_STAR_E.matcher(s).replaceAll("E").replace("E+", "E");
}
/** CAST(DECIMAL AS VARCHAR). */
public static String toString(BigDecimal x) {
final String s = x.toString();
if (s.equals("0")) {
return s;
} else if (s.startsWith("0.")) {
// we want ".1" not "0.1"
return s.substring(1);
} else if (s.startsWith("-0.")) {
// we want "-.1" not "-0.1"
return "-" + s.substring(2);
} else {
return s;
}
}
/** CAST(BOOLEAN AS VARCHAR). */
public static String toString(boolean x) {
// Boolean.toString returns lower case -- no good.
return x ? "TRUE" : "FALSE";
}
@NonDeterministic
private static Object cannotConvert(Object o, Class toType) {
throw RESOURCE.cannotConvert(o.toString(), toType.toString()).ex();
}
/** CAST(VARCHAR AS BOOLEAN). */
public static boolean toBoolean(String s) {
s = trim(true, true, " ", s);
if (s.equalsIgnoreCase("TRUE")) {
return true;
} else if (s.equalsIgnoreCase("FALSE")) {
return false;
} else {
throw RESOURCE.invalidCharacterForCast(s).ex();
}
}
public static boolean toBoolean(Number number) {
return !number.equals(0);
}
public static boolean toBoolean(Object o) {
return o instanceof Boolean ? (Boolean) o
: o instanceof Number ? toBoolean((Number) o)
: o instanceof String ? toBoolean((String) o)
: (Boolean) cannotConvert(o, boolean.class);
}
// Don't need parseByte etc. - Byte.parseByte is sufficient.
public static byte toByte(Object o) {
return o instanceof Byte ? (Byte) o
: o instanceof Number ? toByte((Number) o)
: Byte.parseByte(o.toString());
}
public static byte toByte(Number number) {
return number.byteValue();
}
public static char toChar(String s) {
return s.charAt(0);
}
public static Character toCharBoxed(String s) {
return s.charAt(0);
}
public static short toShort(String s) {
return Short.parseShort(s.trim());
}
public static short toShort(Number number) {
return number.shortValue();
}
public static short toShort(Object o) {
return o instanceof Short ? (Short) o
: o instanceof Number ? toShort((Number) o)
: o instanceof String ? toShort((String) o)
: (Short) cannotConvert(o, short.class);
}
/** Converts the Java type used for UDF parameters of SQL DATE type
* ({@link java.sql.Date}) to internal representation (int).
*
* Converse of {@link #internalToDate(int)}. */
public static int toInt(java.util.Date v) {
return toInt(v, LOCAL_TZ);
}
public static int toInt(java.util.Date v, TimeZone timeZone) {
return (int) (toLong(v, timeZone) / DateTimeUtils.MILLIS_PER_DAY);
}
public static Integer toIntOptional(java.util.Date v) {
return v == null ? null : toInt(v);
}
public static Integer toIntOptional(java.util.Date v, TimeZone timeZone) {
return v == null
? null
: toInt(v, timeZone);
}
public static long toLong(Date v) {
return toLong(v, LOCAL_TZ);
}
/** Converts the Java type used for UDF parameters of SQL TIME type
* ({@link java.sql.Time}) to internal representation (int).
*
*
Converse of {@link #internalToTime(int)}. */
public static int toInt(java.sql.Time v) {
return (int) (toLong(v) % DateTimeUtils.MILLIS_PER_DAY);
}
public static Integer toIntOptional(java.sql.Time v) {
return v == null ? null : toInt(v);
}
public static int toInt(String s) {
return Integer.parseInt(s.trim());
}
public static int toInt(Number number) {
return number.intValue();
}
public static int toInt(Object o) {
return o instanceof Integer ? (Integer) o
: o instanceof Number ? toInt((Number) o)
: o instanceof String ? toInt((String) o)
: o instanceof java.util.Date ? toInt((java.util.Date) o)
: (Integer) cannotConvert(o, int.class);
}
public static Integer toIntOptional(Object o) {
return o == null ? null : toInt(o);
}
/** Converts the Java type used for UDF parameters of SQL TIMESTAMP type
* ({@link java.sql.Timestamp}) to internal representation (long).
*
*
Converse of {@link #internalToTimestamp(long)}. */
public static long toLong(Timestamp v) {
return toLong(v, LOCAL_TZ);
}
// mainly intended for java.sql.Timestamp but works for other dates also
public static long toLong(java.util.Date v, TimeZone timeZone) {
final long time = v.getTime();
return time + timeZone.getOffset(time);
}
// mainly intended for java.sql.Timestamp but works for other dates also
public static Long toLongOptional(java.util.Date v) {
return v == null ? null : toLong(v, LOCAL_TZ);
}
public static Long toLongOptional(Timestamp v, TimeZone timeZone) {
if (v == null) {
return null;
}
return toLong(v, LOCAL_TZ);
}
public static long toLong(String s) {
if (s.startsWith("199") && s.contains(":")) {
return Timestamp.valueOf(s).getTime();
}
return Long.parseLong(s.trim());
}
public static long toLong(Number number) {
return number.longValue();
}
public static long toLong(Object o) {
return o instanceof Long ? (Long) o
: o instanceof Number ? toLong((Number) o)
: o instanceof String ? toLong((String) o)
: o instanceof java.util.Date ? toLong((java.util.Date) o)
: (Long) cannotConvert(o, long.class);
}
public static Long toLongOptional(Object o) {
return o == null ? null : toLong(o);
}
public static float toFloat(String s) {
return Float.parseFloat(s.trim());
}
public static float toFloat(Number number) {
return number.floatValue();
}
public static float toFloat(Object o) {
return o instanceof Float ? (Float) o
: o instanceof Number ? toFloat((Number) o)
: o instanceof String ? toFloat((String) o)
: (Float) cannotConvert(o, float.class);
}
public static double toDouble(String s) {
return Double.parseDouble(s.trim());
}
public static double toDouble(Number number) {
return number.doubleValue();
}
public static double toDouble(Object o) {
return o instanceof Double ? (Double) o
: o instanceof Number ? toDouble((Number) o)
: o instanceof String ? toDouble((String) o)
: (Double) cannotConvert(o, double.class);
}
public static BigDecimal toBigDecimal(String s) {
return new BigDecimal(s.trim());
}
public static BigDecimal toBigDecimal(Number number) {
// There are some values of "long" that cannot be represented as "double".
// Not so "int". If it isn't a long, go straight to double.
return number instanceof BigDecimal ? (BigDecimal) number
: number instanceof BigInteger ? new BigDecimal((BigInteger) number)
: number instanceof Long ? new BigDecimal(number.longValue())
: new BigDecimal(number.doubleValue());
}
public static BigDecimal toBigDecimal(Object o) {
return o instanceof Number ? toBigDecimal((Number) o)
: toBigDecimal(o.toString());
}
/** Converts the internal representation of a SQL DATE (int) to the Java
* type used for UDF parameters ({@link java.sql.Date}). */
public static java.sql.Date internalToDate(int v) {
final long t = v * DateTimeUtils.MILLIS_PER_DAY;
return new java.sql.Date(t - LOCAL_TZ.getOffset(t));
}
/** As {@link #internalToDate(int)} but allows nulls. */
public static java.sql.Date internalToDate(Integer v) {
return v == null ? null : internalToDate(v.intValue());
}
/** Converts the internal representation of a SQL TIME (int) to the Java
* type used for UDF parameters ({@link java.sql.Time}). */
public static java.sql.Time internalToTime(int v) {
return new java.sql.Time(v - LOCAL_TZ.getOffset(v));
}
public static java.sql.Time internalToTime(Integer v) {
return v == null ? null : internalToTime(v.intValue());
}
public static Integer toTimeWithLocalTimeZone(String v) {
return v == null ? null : new TimeWithTimeZoneString(v)
.withTimeZone(DateTimeUtils.UTC_ZONE)
.getLocalTimeString()
.getMillisOfDay();
}
public static Integer toTimeWithLocalTimeZone(String v, TimeZone timeZone) {
return v == null ? null : new TimeWithTimeZoneString(v + " " + timeZone.getID())
.withTimeZone(DateTimeUtils.UTC_ZONE)
.getLocalTimeString()
.getMillisOfDay();
}
public static int timeWithLocalTimeZoneToTime(int v, TimeZone timeZone) {
return TimeWithTimeZoneString.fromMillisOfDay(v)
.withTimeZone(timeZone)
.getLocalTimeString()
.getMillisOfDay();
}
public static long timeWithLocalTimeZoneToTimestamp(String date, int v, TimeZone timeZone) {
final TimeWithTimeZoneString tTZ = TimeWithTimeZoneString.fromMillisOfDay(v)
.withTimeZone(DateTimeUtils.UTC_ZONE);
return new TimestampWithTimeZoneString(date + " " + tTZ.toString())
.withTimeZone(timeZone)
.getLocalTimestampString()
.getMillisSinceEpoch();
}
public static long timeWithLocalTimeZoneToTimestampWithLocalTimeZone(String date, int v) {
final TimeWithTimeZoneString tTZ = TimeWithTimeZoneString.fromMillisOfDay(v)
.withTimeZone(DateTimeUtils.UTC_ZONE);
return new TimestampWithTimeZoneString(date + " " + tTZ.toString())
.getLocalTimestampString()
.getMillisSinceEpoch();
}
public static String timeWithLocalTimeZoneToString(int v, TimeZone timeZone) {
return TimeWithTimeZoneString.fromMillisOfDay(v)
.withTimeZone(timeZone)
.toString();
}
/** Converts the internal representation of a SQL TIMESTAMP (long) to the Java
* type used for UDF parameters ({@link java.sql.Timestamp}). */
public static java.sql.Timestamp internalToTimestamp(long v) {
return new java.sql.Timestamp(v - LOCAL_TZ.getOffset(v));
}
public static java.sql.Timestamp internalToTimestamp(Long v) {
return v == null ? null : internalToTimestamp(v.longValue());
}
public static int timestampWithLocalTimeZoneToDate(long v, TimeZone timeZone) {
return TimestampWithTimeZoneString.fromMillisSinceEpoch(v)
.withTimeZone(timeZone)
.getLocalDateString()
.getDaysSinceEpoch();
}
public static int timestampWithLocalTimeZoneToTime(long v, TimeZone timeZone) {
return TimestampWithTimeZoneString.fromMillisSinceEpoch(v)
.withTimeZone(timeZone)
.getLocalTimeString()
.getMillisOfDay();
}
public static long timestampWithLocalTimeZoneToTimestamp(long v, TimeZone timeZone) {
return TimestampWithTimeZoneString.fromMillisSinceEpoch(v)
.withTimeZone(timeZone)
.getLocalTimestampString()
.getMillisSinceEpoch();
}
public static String timestampWithLocalTimeZoneToString(long v, TimeZone timeZone) {
return TimestampWithTimeZoneString.fromMillisSinceEpoch(v)
.withTimeZone(timeZone)
.toString();
}
public static int timestampWithLocalTimeZoneToTimeWithLocalTimeZone(long v) {
return TimestampWithTimeZoneString.fromMillisSinceEpoch(v)
.getLocalTimeString()
.getMillisOfDay();
}
public static Long toTimestampWithLocalTimeZone(String v) {
return v == null ? null : new TimestampWithTimeZoneString(v)
.withTimeZone(DateTimeUtils.UTC_ZONE)
.getLocalTimestampString()
.getMillisSinceEpoch();
}
public static Long toTimestampWithLocalTimeZone(String v, TimeZone timeZone) {
return v == null ? null : new TimestampWithTimeZoneString(v + " " + timeZone.getID())
.withTimeZone(DateTimeUtils.UTC_ZONE)
.getLocalTimestampString()
.getMillisSinceEpoch();
}
// Don't need shortValueOf etc. - Short.valueOf is sufficient.
/** Helper for CAST(... AS VARCHAR(maxLength)). */
public static String truncate(String s, int maxLength) {
if (s == null) {
return null;
} else if (s.length() > maxLength) {
return s.substring(0, maxLength);
} else {
return s;
}
}
/** Helper for CAST(... AS CHAR(maxLength)). */
public static String truncateOrPad(String s, int maxLength) {
if (s == null) {
return null;
} else {
final int length = s.length();
if (length > maxLength) {
return s.substring(0, maxLength);
} else {
return length < maxLength ? Spaces.padRight(s, maxLength) : s;
}
}
}
/** Helper for CAST(... AS VARBINARY(maxLength)). */
public static ByteString truncate(ByteString s, int maxLength) {
if (s == null) {
return null;
} else if (s.length() > maxLength) {
return s.substring(0, maxLength);
} else {
return s;
}
}
/** Helper for CAST(... AS BINARY(maxLength)). */
public static ByteString truncateOrPad(ByteString s, int maxLength) {
if (s == null) {
return null;
} else {
final int length = s.length();
if (length > maxLength) {
return s.substring(0, maxLength);
} else if (length < maxLength) {
return s.concat(new ByteString(new byte[maxLength - length]));
} else {
return s;
}
}
}
/** SQL {@code POSITION(seek IN string)} function. */
public static int position(String seek, String s) {
return s.indexOf(seek) + 1;
}
/** SQL {@code POSITION(seek IN string)} function for byte strings. */
public static int position(ByteString seek, ByteString s) {
return s.indexOf(seek) + 1;
}
/** SQL {@code POSITION(seek IN string FROM integer)} function. */
public static int position(String seek, String s, int from) {
final int from0 = from - 1; // 0-based
if (from0 > s.length() || from0 < 0) {
return 0;
}
return s.indexOf(seek, from0) + 1;
}
/** SQL {@code POSITION(seek IN string FROM integer)} function for byte
* strings. */
public static int position(ByteString seek, ByteString s, int from) {
final int from0 = from - 1;
if (from0 > s.length() || from0 < 0) {
return 0;
}
// ByteString doesn't have indexOf(ByteString, int) until avatica-1.9
// (see [CALCITE-1423]), so apply substring and find from there.
Bug.upgrade("in avatica-1.9, use ByteString.substring(ByteString, int)");
final int p = s.substring(from0).indexOf(seek);
if (p < 0) {
return 0;
}
return p + from;
}
/** Helper for rounding. Truncate(12345, 1000) returns 12000. */
public static long round(long v, long x) {
return truncate(v + x / 2, x);
}
/** Helper for rounding. Truncate(12345, 1000) returns 12000. */
public static long truncate(long v, long x) {
long remainder = v % x;
if (remainder < 0) {
remainder += x;
}
return v - remainder;
}
/** Helper for rounding. Truncate(12345, 1000) returns 12000. */
public static int round(int v, int x) {
return truncate(v + x / 2, x);
}
/** Helper for rounding. Truncate(12345, 1000) returns 12000. */
public static int truncate(int v, int x) {
int remainder = v % x;
if (remainder < 0) {
remainder += x;
}
return v - remainder;
}
/**
* SQL {@code LAST_DAY} function.
*
* @param date days since epoch
* @return days of the last day of the month since epoch
*/
public static int lastDay(int date) {
int y0 = (int) DateTimeUtils.unixDateExtract(TimeUnitRange.YEAR, date);
int m0 = (int) DateTimeUtils.unixDateExtract(TimeUnitRange.MONTH, date);
int last = lastDay(y0, m0);
return DateTimeUtils.ymdToUnixDate(y0, m0, last);
}
/**
* SQL {@code LAST_DAY} function.
*
* @param timestamp milliseconds from epoch
* @return milliseconds of the last day of the month since epoch
*/
public static int lastDay(long timestamp) {
int date = (int) (timestamp / DateTimeUtils.MILLIS_PER_DAY);
int y0 = (int) DateTimeUtils.unixDateExtract(TimeUnitRange.YEAR, date);
int m0 = (int) DateTimeUtils.unixDateExtract(TimeUnitRange.MONTH, date);
int last = lastDay(y0, m0);
return DateTimeUtils.ymdToUnixDate(y0, m0, last);
}
/**
* SQL {@code DAYNAME} function, applied to a TIMESTAMP argument.
*
* @param timestamp Milliseconds from epoch
* @param locale Locale
* @return Name of the weekday in the given locale
*/
public static String dayNameWithTimestamp(long timestamp, Locale locale) {
return timeStampToLocalDate(timestamp)
.format(ROOT_DAY_FORMAT.withLocale(locale));
}
/**
* SQL {@code DAYNAME} function, applied to a DATE argument.
*
* @param date Days since epoch
* @param locale Locale
* @return Name of the weekday in the given locale
*/
public static String dayNameWithDate(int date, Locale locale) {
return dateToLocalDate(date)
.format(ROOT_DAY_FORMAT.withLocale(locale));
}
/**
* SQL {@code MONTHNAME} function, applied to a TIMESTAMP argument.
*
* @param timestamp Milliseconds from epoch
* @param locale Locale
* @return Name of the month in the given locale
*/
public static String monthNameWithTimestamp(long timestamp, Locale locale) {
return timeStampToLocalDate(timestamp)
.format(ROOT_MONTH_FORMAT.withLocale(locale));
}
/**
* SQL {@code MONTHNAME} function, applied to a DATE argument.
*
* @param date Days from epoch
* @param locale Locale
* @return Name of the month in the given locale
*/
public static String monthNameWithDate(int date, Locale locale) {
return dateToLocalDate(date)
.format(ROOT_MONTH_FORMAT.withLocale(locale));
}
/**
* Converts a date (days since epoch) to a {@link LocalDate}.
*
* @param date days since epoch
* @return localDate
*/
private static LocalDate dateToLocalDate(int date) {
int y0 = (int) DateTimeUtils.unixDateExtract(TimeUnitRange.YEAR, date);
int m0 = (int) DateTimeUtils.unixDateExtract(TimeUnitRange.MONTH, date);
int d0 = (int) DateTimeUtils.unixDateExtract(TimeUnitRange.DAY, date);
return LocalDate.of(y0, m0, d0);
}
/**
* Converts a timestamp (milliseconds since epoch) to a {@link LocalDate}.
*
* @param timestamp milliseconds from epoch
* @return localDate
*/
private static LocalDate timeStampToLocalDate(long timestamp) {
int date = (int) (timestamp / DateTimeUtils.MILLIS_PER_DAY);
return dateToLocalDate(date);
}
/** SQL {@code CURRENT_TIMESTAMP} function. */
@NonDeterministic
public static long currentTimestamp(DataContext root) {
// Cast required for JDK 1.6.
return (Long) DataContext.Variable.CURRENT_TIMESTAMP.get(root);
}
/** SQL {@code CURRENT_TIME} function. */
@NonDeterministic
public static int currentTime(DataContext root) {
int time = (int) (currentTimestamp(root) % DateTimeUtils.MILLIS_PER_DAY);
if (time < 0) {
time += DateTimeUtils.MILLIS_PER_DAY;
}
return time;
}
/** SQL {@code CURRENT_DATE} function. */
@NonDeterministic
public static int currentDate(DataContext root) {
final long timestamp = currentTimestamp(root);
int date = (int) (timestamp / DateTimeUtils.MILLIS_PER_DAY);
final int time = (int) (timestamp % DateTimeUtils.MILLIS_PER_DAY);
if (time < 0) {
--date;
}
return date;
}
/** SQL {@code LOCAL_TIMESTAMP} function. */
@NonDeterministic
public static long localTimestamp(DataContext root) {
// Cast required for JDK 1.6.
return (Long) DataContext.Variable.LOCAL_TIMESTAMP.get(root);
}
/** SQL {@code LOCAL_TIME} function. */
@NonDeterministic
public static int localTime(DataContext root) {
return (int) (localTimestamp(root) % DateTimeUtils.MILLIS_PER_DAY);
}
@NonDeterministic
public static TimeZone timeZone(DataContext root) {
return (TimeZone) DataContext.Variable.TIME_ZONE.get(root);
}
/** SQL {@code USER} function. */
@Deterministic
public static String user(DataContext root) {
return Objects.requireNonNull(DataContext.Variable.USER.get(root));
}
/** SQL {@code SYSTEM_USER} function. */
@Deterministic
public static String systemUser(DataContext root) {
return Objects.requireNonNull(DataContext.Variable.SYSTEM_USER.get(root));
}
@NonDeterministic
public static Locale locale(DataContext root) {
return (Locale) DataContext.Variable.LOCALE.get(root);
}
/** SQL {@code TRANSLATE(string, search_chars, replacement_chars)}
* function. */
public static String translate3(String s, String search, String replacement) {
return com.hazelcast.org.apache.com.hazelcast.com.ons.lang3.StringUtils.replaceChars(s, search, replacement);
}
/** SQL {@code REPLACE(string, search, replacement)} function. */
public static String replace(String s, String search, String replacement) {
return s.replace(search, replacement);
}
/** Helper for "array element reference". Caller has already ensured that
* array and index are not null. Index is 1-based, per SQL. */
public static Object arrayItem(List list, int item) {
if (item < 1 || item > list.size()) {
return null;
}
return list.get(item - 1);
}
/** Helper for "map element reference". Caller has already ensured that
* array and index are not null. Index is 1-based, per SQL. */
public static Object mapItem(Map map, Object item) {
return map.get(item);
}
/** Implements the {@code [ ... ]} operator on an object whose type is not
* known until runtime.
*/
public static Object item(Object object, Object index) {
if (object instanceof Map) {
return mapItem((Map) object, index);
}
if (object instanceof List && index instanceof Number) {
return arrayItem((List) object, ((Number) index).intValue());
}
return null;
}
/** As {@link #arrayItem} method, but allows array to be nullable. */
public static Object arrayItemOptional(List list, int item) {
if (list == null) {
return null;
}
return arrayItem(list, item);
}
/** As {@link #mapItem} method, but allows map to be nullable. */
public static Object mapItemOptional(Map map, Object item) {
if (map == null) {
return null;
}
return mapItem(map, item);
}
/** As {@link #item} method, but allows object to be nullable. */
public static Object itemOptional(Object object, Object index) {
if (object == null) {
return null;
}
return item(object, index);
}
/** NULL → FALSE, FALSE → FALSE, TRUE → TRUE. */
public static boolean isTrue(Boolean b) {
return b != null && b;
}
/** NULL → FALSE, FALSE → TRUE, TRUE → FALSE. */
public static boolean isFalse(Boolean b) {
return b != null && !b;
}
/** NULL → TRUE, FALSE → TRUE, TRUE → FALSE. */
public static boolean isNotTrue(Boolean b) {
return b == null || !b;
}
/** NULL → TRUE, FALSE → FALSE, TRUE → TRUE. */
public static boolean isNotFalse(Boolean b) {
return b == null || b;
}
/** NULL → NULL, FALSE → TRUE, TRUE → FALSE. */
public static Boolean not(Boolean b) {
return (b == null) ? null : !b;
}
/** Converts a JDBC array to a list. */
public static List arrayToList(final java.sql.Array a) {
if (a == null) {
return null;
}
try {
return Primitive.asList(a.getArray());
} catch (SQLException e) {
throw Util.toUnchecked(e);
}
}
/** Support the {@code CURRENT VALUE OF sequence} operator. */
@NonDeterministic
public static long sequenceCurrentValue(String key) {
return getAtomicLong(key).get();
}
/** Support the {@code NEXT VALUE OF sequence} operator. */
@NonDeterministic
public static long sequenceNextValue(String key) {
return getAtomicLong(key).incrementAndGet();
}
private static AtomicLong getAtomicLong(String key) {
final Map map = THREAD_SEQUENCES.get();
AtomicLong atomic = map.get(key);
if (atomic == null) {
atomic = new AtomicLong();
map.put(key, atomic);
}
return atomic;
}
/** Support the SLICE function. */
public static List slice(List list) {
List result = new ArrayList(list.size());
for (Object e : list) {
result.add(structAccess(e, 0, null));
}
return result;
}
/** Support the ELEMENT function. */
public static Object element(List list) {
switch (list.size()) {
case 0:
return null;
case 1:
return list.get(0);
default:
throw RESOURCE.moreThanOneValueInList(list.toString()).ex();
}
}
/** Support the MEMBER OF function. */
public static boolean memberOf(Object object, Collection collection) {
return collection.contains(object);
}
/** Support the MULTISET INTERSECT DISTINCT function. */
public static Collection multisetIntersectDistinct(Collection c1,
Collection c2) {
final Set result = new HashSet<>(c1);
result.retainAll(c2);
return new ArrayList<>(result);
}
/** Support the MULTISET INTERSECT ALL function. */
public static Collection multisetIntersectAll(Collection c1,
Collection c2) {
final List result = new ArrayList<>(c1.size());
final List c2Copy = new ArrayList<>(c2);
for (E e : c1) {
if (c2Copy.remove(e)) {
result.add(e);
}
}
return result;
}
/** Support the MULTISET EXCEPT ALL function. */
public static Collection multisetExceptAll(Collection c1,
Collection c2) {
final List result = new LinkedList<>(c1);
for (E e : c2) {
result.remove(e);
}
return result;
}
/** Support the MULTISET EXCEPT DISTINCT function. */
public static Collection multisetExceptDistinct(Collection c1,
Collection c2) {
final Set result = new HashSet<>(c1);
result.removeAll(c2);
return new ArrayList<>(result);
}
/** Support the IS A SET function. */
public static boolean isASet(Collection collection) {
if (collection instanceof Set) {
return true;
}
// capacity calculation is in the same way like for new HashSet(Collection)
// however return immediately in case of duplicates
Set set = new HashSet(Math.max((int) (collection.size() / .75f) + 1, 16));
for (Object e : collection) {
if (!set.add(e)) {
return false;
}
}
return true;
}
/** Support the SUBMULTISET OF function. */
public static boolean submultisetOf(Collection possibleSubMultiset,
Collection multiset) {
if (possibleSubMultiset.size() > multiset.size()) {
return false;
}
Collection multisetLocal = new LinkedList(multiset);
for (Object e : possibleSubMultiset) {
if (!multisetLocal.remove(e)) {
return false;
}
}
return true;
}
/** Support the MULTISET UNION function. */
public static Collection multisetUnionDistinct(Collection collection1,
Collection collection2) {
// capacity calculation is in the same way like for new HashSet(Collection)
Set resultCollection =
new HashSet(Math.max((int) ((collection1.size() + collection2.size()) / .75f) + 1, 16));
resultCollection.addAll(collection1);
resultCollection.addAll(collection2);
return new ArrayList(resultCollection);
}
/** Support the MULTISET UNION ALL function. */
public static Collection multisetUnionAll(Collection collection1,
Collection collection2) {
List resultCollection = new ArrayList(collection1.size() + collection2.size());
resultCollection.addAll(collection1);
resultCollection.addAll(collection2);
return resultCollection;
}
public static Function1>> flatProduct(
final int[] fieldCounts, final boolean withOrdinality,
final FlatProductInputType[] inputTypes) {
if (fieldCounts.length == 1) {
if (!withOrdinality && inputTypes[0] == FlatProductInputType.SCALAR) {
//noinspection unchecked
return (Function1) LIST_AS_ENUMERABLE;
} else {
return row -> p2(new Object[] { row }, fieldCounts, withOrdinality,
inputTypes);
}
}
return lists -> p2((Object[]) lists, fieldCounts, withOrdinality,
inputTypes);
}
private static Enumerable> p2(
Object[] lists, int[] fieldCounts, boolean withOrdinality,
FlatProductInputType[] inputTypes) {
final List>> enumerators = new ArrayList<>();
int totalFieldCount = 0;
for (int i = 0; i < lists.length; i++) {
int fieldCount = fieldCounts[i];
FlatProductInputType inputType = inputTypes[i];
Object inputObject = lists[i];
switch (inputType) {
case SCALAR:
@SuppressWarnings("unchecked") List list =
(List) inputObject;
enumerators.add(
Linq4j.transform(
Linq4j.enumerator(list), FlatLists::of));
break;
case LIST:
@SuppressWarnings("unchecked") List> listList =
(List>) inputObject;
enumerators.add(Linq4j.enumerator(listList));
break;
case MAP:
@SuppressWarnings("unchecked") Map map =
(Map) inputObject;
Enumerator> enumerator =
Linq4j.enumerator(map.entrySet());
Enumerator> transformed = Linq4j.transform(enumerator,
e -> FlatLists.of(e.getKey(), e.getValue()));
enumerators.add(transformed);
break;
default:
break;
}
if (fieldCount < 0) {
++totalFieldCount;
} else {
totalFieldCount += fieldCount;
}
}
if (withOrdinality) {
++totalFieldCount;
}
return product(enumerators, totalFieldCount, withOrdinality);
}
public static Object[] array(Object... args) {
return args;
}
/** Similar to {@link Linq4j#product(Iterable)} but each resulting list
* implements {@link FlatLists.ComparableList}. */
public static Enumerable> product(
final List>> enumerators, final int fieldCount,
final boolean withOrdinality) {
return new AbstractEnumerable>() {
public Enumerator> enumerator() {
return new ProductComparableListEnumerator<>(enumerators, fieldCount,
withOrdinality);
}
};
}
/** Adds a given number of months to a timestamp, represented as the number
* of milliseconds since the epoch. */
public static long addMonths(long timestamp, int m) {
final long millis =
DateTimeUtils.floorMod(timestamp, DateTimeUtils.MILLIS_PER_DAY);
timestamp -= millis;
final long x =
addMonths((int) (timestamp / DateTimeUtils.MILLIS_PER_DAY), m);
return x * DateTimeUtils.MILLIS_PER_DAY + millis;
}
/** Adds a given number of months to a date, represented as the number of
* days since the epoch. */
public static int addMonths(int date, int m) {
int y0 = (int) DateTimeUtils.unixDateExtract(TimeUnitRange.YEAR, date);
int m0 = (int) DateTimeUtils.unixDateExtract(TimeUnitRange.MONTH, date);
int d0 = (int) DateTimeUtils.unixDateExtract(TimeUnitRange.DAY, date);
m0 += m;
int deltaYear = (int) DateTimeUtils.floorDiv(m0, 12);
y0 += deltaYear;
m0 = (int) DateTimeUtils.floorMod(m0, 12);
if (m0 == 0) {
y0 -= 1;
m0 += 12;
}
int last = lastDay(y0, m0);
if (d0 > last) {
d0 = last;
}
return DateTimeUtils.ymdToUnixDate(y0, m0, d0);
}
private static int lastDay(int y, int m) {
switch (m) {
case 2:
return y % 4 == 0
&& (y % 100 != 0
|| y % 400 == 0)
? 29 : 28;
case 4:
case 6:
case 9:
case 11:
return 30;
default:
return 31;
}
}
/** Finds the number of months between two dates, each represented as the
* number of days since the epoch. */
public static int subtractMonths(int date0, int date1) {
if (date0 < date1) {
return -subtractMonths(date1, date0);
}
// Start with an estimate.
// Since no month has more than 31 days, the estimate is <= the true value.
int m = (date0 - date1) / 31;
for (;;) {
int date2 = addMonths(date1, m);
if (date2 >= date0) {
return m;
}
int date3 = addMonths(date1, m + 1);
if (date3 > date0) {
return m;
}
++m;
}
}
public static int subtractMonths(long t0, long t1) {
final long millis0 =
DateTimeUtils.floorMod(t0, DateTimeUtils.MILLIS_PER_DAY);
final int d0 = (int) DateTimeUtils.floorDiv(t0 - millis0,
DateTimeUtils.MILLIS_PER_DAY);
final long millis1 =
DateTimeUtils.floorMod(t1, DateTimeUtils.MILLIS_PER_DAY);
final int d1 = (int) DateTimeUtils.floorDiv(t1 - millis1,
DateTimeUtils.MILLIS_PER_DAY);
int x = subtractMonths(d0, d1);
final long d2 = addMonths(d1, x);
if (d2 == d0 && millis0 < millis1) {
--x;
}
return x;
}
/**
* Implements the {@code .} (field access) operator on an object
* whose type is not known until runtime.
*
* A struct object can be represented in various ways by the
* runtime and depends on the
* {@link com.hazelcast.org.apache.calcite.adapter.enumerable.JavaRowFormat}.
*/
@Experimental
public static Object structAccess(Object structObject, int index, String fieldName) {
if (structObject == null) {
return null;
}
if (structObject instanceof Object[]) {
return ((Object[]) structObject)[index];
} else if (structObject instanceof List) {
return ((List) structObject).get(index);
} else if (structObject instanceof Row) {
return ((Row) structObject).getObject(index);
} else {
Class beanClass = structObject.getClass();
try {
Field structField = beanClass.getDeclaredField(fieldName);
return structField.get(structObject);
} catch (NoSuchFieldException | IllegalAccessException ex) {
throw RESOURCE.failedToAccessField(fieldName, beanClass.getName()).ex(ex);
}
}
}
/** Enumerates over the cartesian product of the given lists, returning
* a com.hazelcast.com.arable list for each row.
*
* @param element type */
private static class ProductComparableListEnumerator
extends CartesianProductEnumerator, FlatLists.ComparableList> {
final E[] flatElements;
final List list;
private final boolean withOrdinality;
private int ordinality;
ProductComparableListEnumerator(List>> enumerators,
int fieldCount, boolean withOrdinality) {
super(enumerators);
this.withOrdinality = withOrdinality;
flatElements = (E[]) new Comparable[fieldCount];
list = Arrays.asList(flatElements);
}
@Override public boolean moveNext() {
boolean hasNext = super.moveNext();
if (hasNext && withOrdinality) {
ordinality++;
}
return hasNext;
}
public FlatLists.ComparableList current() {
int i = 0;
for (Object element : (Object[]) elements) {
Object[] a;
if (element.getClass().isArray()) {
a = (Object[]) element;
} else {
final List list2 = (List) element;
a = list2.toArray();
}
System.arraycopy(a, 0, flatElements, i, a.length);
i += a.length;
}
if (withOrdinality) {
flatElements[i] = (E) Integer.valueOf(ordinality);
}
return FlatLists.ofComparable(list);
}
@Override public void reset() {
super.reset();
if (withOrdinality) {
ordinality = 0;
}
}
}
/** Type of argument passed into {@link #flatProduct}. */
public enum FlatProductInputType {
SCALAR, LIST, MAP
}
}
