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com.marklogic.client.impl.ValueConverter Maven / Gradle / Ivy
/*
* Copyright 2012-2015 MarkLogic Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.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.marklogic.client.impl;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.util.Calendar;
import javax.xml.bind.DatatypeConverter;
import javax.xml.datatype.DatatypeConfigurationException;
import javax.xml.datatype.DatatypeFactory;
import javax.xml.datatype.Duration;
import com.marklogic.client.MarkLogicInternalException;
/**
* ValueConverter roundtrips Java atomic values to and from XML.
*
* Note that ValueConverter does not enable Java equivalents for the following
* XML Schema concrete atomic datatypes: anyUri, gYear, gMonth, gDay, gMonthDay,
* hexBinary, ID, language, Name, NCName, xs:unsignedByte, or token.
*/
public class ValueConverter {
/**
* ValueProcessor specifies a callback for processing a Java value
* converted to the lexical form of an XML value.
*/
public interface ValueProcessor {
public void process(Object original, String type, String value);
}
final static private BigInteger MIN_UNSIGNED = new BigInteger("0");
/**
* The largest unsigned long.
*/
final static public BigInteger MAX_UNSIGNED_LONG = new BigInteger("18446744073709551615");
/**
* The largest unsigned int.
*/
final static public long MAX_UNSIGNED_INT = 4294967295l;
/**
* The largest unsigned short.
*/
final static public int MAX_UNSIGNED_SHORT = 65535;
static private DatatypeFactory datatypeFactory;
private ValueConverter() {
super();
}
static public void convertFromJava(Object value, ValueProcessor processor) {
if (value == null)
processor.process(null, null, null);
else if (value instanceof BigDecimal)
convertFromJava((BigDecimal) value, processor);
else if (value instanceof BigInteger)
convertFromJava((BigInteger) value, processor);
else if (value instanceof Boolean)
convertFromJava((Boolean) value, processor);
else if (value instanceof Byte)
convertFromJava((Byte) value, processor);
else if (value instanceof byte[])
convertFromJava((byte[]) value, processor);
else if (value instanceof Calendar)
convertFromJava((Calendar) value, processor);
else if (value instanceof Double)
convertFromJava((Double) value, processor);
else if (value instanceof Duration)
convertFromJava((Duration) value, processor);
else if (value instanceof Float)
convertFromJava((Float) value, processor);
else if (value instanceof Integer)
convertFromJava((Integer) value, processor);
else if (value instanceof Long)
convertFromJava((Long) value, processor);
else if (value instanceof Short)
convertFromJava((Short) value, processor);
else if (value instanceof String)
convertFromJava((String) value, processor);
else
processor.process(
value,
"xs:anySimpleType",
DatatypeConverter.printString(value.toString())
);
}
static public void convertFromJava(BigDecimal value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
processor.process(
value,
"xs:decimal",
DatatypeConverter.printDecimal(value)
);
}
static public void convertFromJava(BigInteger value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
if (MIN_UNSIGNED.compareTo(value) <= 0 &&
MAX_UNSIGNED_LONG.compareTo(value) >= 0)
// DatatypeConverter doesn't provide printUnsignedLong()
processor.process(
value,
"xs:unsignedLong",
DatatypeConverter.printInteger(value)
);
else
processor.process(
value,
"xs:integer",
DatatypeConverter.printInteger(value)
);
}
static public void convertFromJava(Boolean value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
processor.process(
value,
"xs:boolean",
DatatypeConverter.printBoolean(value)
);
}
static public void convertFromJava(Byte value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
processor.process(
value,
"xs:byte",
DatatypeConverter.printByte(value)
);
}
static public void convertFromJava(byte[] value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
processor.process(
value,
"xs:base64Binary",
DatatypeConverter.printBase64Binary(value)
);
}
static public void convertFromJava(Calendar value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
if (!value.isSet(Calendar.DAY_OF_MONTH))
processor.process(
value,
"xs:time",
DatatypeConverter.printTime(value)
);
else if (value.isSet(Calendar.HOUR_OF_DAY))
processor.process(
value,
"xs:dateTime",
DatatypeConverter.printDateTime(value)
);
else
processor.process(
value,
"xs:date",
DatatypeConverter.printDate(value)
);
}
static public void convertFromJava(Double value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
processor.process(
value,
"xs:double",
DatatypeConverter.printDouble(value)
);
}
static public void convertFromJava(Duration value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
processor.process(
value,
"xs:"+value.getXMLSchemaType().getLocalPart(),
value.toString()
);
}
static public void convertFromJava(Float value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
processor.process(
value,
"xs:float",
DatatypeConverter.printFloat(value)
);
}
static public void convertFromJava(Integer value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
int ival = value.intValue();
if (0 <= ival && ival <= MAX_UNSIGNED_SHORT)
processor.process(
value,
"xs:unsignedShort",
DatatypeConverter.printUnsignedShort(ival)
);
else
processor.process(
value,
"xs:int",
DatatypeConverter.printInt(ival)
);
}
static public void convertFromJava(Long value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
long longVal = ((Long) value).longValue();
if (0 <= longVal && longVal <= MAX_UNSIGNED_INT)
processor.process(
value,
"xs:unsignedInt",
DatatypeConverter.printUnsignedInt(longVal)
);
else
processor.process(
value,
"xs:long",
DatatypeConverter.printLong(longVal)
);
}
static public void convertFromJava(Short value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
processor.process(
value,
"xs:short",
DatatypeConverter.printShort(value)
);
}
static public void convertFromJava(String value, ValueProcessor processor) {
if (value == null) {
processor.process(null, null, null);
return;
}
processor.process(
value,
"xs:string",
DatatypeConverter.printString(value)
);
}
static public Object convertToJava(String type, String value) {
if ("xs:anySimpleType".equals(type))
return DatatypeConverter.parseAnySimpleType(value);
if ("xs:base64Binary".equals(type))
return DatatypeConverter.parseBase64Binary(value);
if ("xs:boolean".equals(type))
return DatatypeConverter.parseBoolean(value);
if ("xs:byte".equals(type))
return DatatypeConverter.parseByte(value);
if ("xs:date".equals(type))
return DatatypeConverter.parseDate(value);
if ("xs:dateTime".equals(type))
return DatatypeConverter.parseDateTime(value);
if ("xs:dayTimeDuration".equals(type))
return getFactory().newDurationDayTime(value);
if ("xs:decimal".equals(type))
return DatatypeConverter.parseDecimal(value);
if ("xs:double".equals(type))
return DatatypeConverter.parseDouble(value);
if ("xs:duration".equals(type))
return getFactory().newDuration(value);
if ("xs:float".equals(type))
return DatatypeConverter.parseFloat(value);
if ("xs:int".equals(type))
return DatatypeConverter.parseInt(value);
if ("xs:integer".equals(type))
return DatatypeConverter.parseInteger(value);
if ("xs:long".equals(type))
return DatatypeConverter.parseLong(value);
if ("xs:short".equals(type))
return DatatypeConverter.parseShort(value);
if ("xs:string".equals(type))
return DatatypeConverter.parseString(value);
if ("xs:time".equals(type))
return DatatypeConverter.parseTime(value);
if ("xs:unsignedInt".equals(type))
return DatatypeConverter.parseUnsignedInt(value);
if ("xs:unsignedLong".equals(type)) {
BigInteger bi = DatatypeConverter.parseInteger(value);
if (bi.compareTo(MAX_UNSIGNED_LONG) < 0) {
return bi.longValue();
} else {
return bi;
}
} if ("xs:unsignedShort".equals(type))
return DatatypeConverter.parseUnsignedShort(value);
if ("xs:yearMonthDuration".equals(type))
return getFactory().newDurationYearMonth(value);
return value;
}
@SuppressWarnings("unchecked")
static public T convertToJava(String type, String value, Class as) {
return (T) convertToJava(type, value);
}
static private DatatypeFactory getFactory() {
if (datatypeFactory == null) {
try {
datatypeFactory = DatatypeFactory.newInstance();
} catch (DatatypeConfigurationException e) {
throw new MarkLogicInternalException(e);
}
}
return datatypeFactory;
}
}
