net.sf.qualitycheck.ConditionalCheck Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2012 André Rouél
* Copyright 2012 Dominik Seichter
*
* 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 net.sf.qualitycheck;
import java.lang.annotation.Annotation;
import java.util.Collection;
import java.util.Map;
import java.util.regex.Pattern;
import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import net.sf.qualitycheck.exception.IllegalArgumentNotContainedException;
import net.sf.qualitycheck.exception.IllegalEmptyArgumentException;
import net.sf.qualitycheck.exception.IllegalInstanceOfArgumentException;
import net.sf.qualitycheck.exception.IllegalMissingAnnotationException;
import net.sf.qualitycheck.exception.IllegalNaNArgumentException;
import net.sf.qualitycheck.exception.IllegalNegativeArgumentException;
import net.sf.qualitycheck.exception.IllegalNotEqualException;
import net.sf.qualitycheck.exception.IllegalNotGreaterThanException;
import net.sf.qualitycheck.exception.IllegalNotLesserThanException;
import net.sf.qualitycheck.exception.IllegalNotNullArgumentException;
import net.sf.qualitycheck.exception.IllegalNullArgumentException;
import net.sf.qualitycheck.exception.IllegalNullElementsException;
import net.sf.qualitycheck.exception.IllegalNumberArgumentException;
import net.sf.qualitycheck.exception.IllegalNumericArgumentException;
import net.sf.qualitycheck.exception.IllegalPatternArgumentException;
import net.sf.qualitycheck.exception.IllegalPositionIndexException;
import net.sf.qualitycheck.exception.IllegalRangeException;
import net.sf.qualitycheck.exception.IllegalStateOfArgumentException;
import net.sf.qualitycheck.exception.RuntimeInstantiationException;
/**
* This class adds conditional checks to test your arguments to be valid. The checks are the same as offered in
* {@code Check}, but all have an additional condition. The check is only executed if the condition is @code
* true.
*
* Examples for ConditionalCheck's are parameters that must be checked if they are not null. E.g.
* public void method(@Nullable final String numericArgument, @Nullable final List list) {
* ConditionalCheck.isNumeric( numericArgument != null, numericArgument, "numericArgument" );
* ConditionalCheck.isNumeric( list != null, list, "list" );
* }
*
*
* There are also cases where you can do more optimized technical checks:
* public void method(final String address) {
* ConditionalCheck.matchesPattern(address.length() <= 15,
* Pattern.compile("\\d{3}.\\d{3}.\\d{3}.\\d{3}"), address);
* ConditionalCheck.matchesPattern(address.length() > 15,
* Pattern.compile("[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}:[a-f0-9]{2}"), address);
* }
*
*
*
* Use {@code ConditionalCheck} with care! Coditional checks are often an indicator for bad design. Good APIs accept
* only values that are always valid. Seldom there are arguments which must be checked only in certain cases.
* Additionally, take care that you do not mix up technical and functional checks. Conditional checks often tend to be
* more functional than the technical checks offered by {@code Check}.
*
* Logical checks should not be done using {@code ConditionalCheck}, because the way checks work one cannot be sure if
* every branch is covered by measuring the branch coverage.
*
* @author Dominik Seichter
*/
public final class ConditionalCheck {
/**
* Ensures that an element {@code needle} is contained in a collection {@code haystack}.
*
*
* This is in particular useful if you want to check whether an enum value is contained in an {@code EnumSet}. The
* check is implemented using {@link java.util.Collection#contains(Object)}.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
*
* We recommend to use the overloaded method {@link Check#contains(Collection, Object, String)} and pass as second
* argument the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param haystack
* A collection which must contain {@code needle}
* @param needle
* An object that must be contained into a collection.
* @return the passed argument {@code needle}
*
* @throws IllegalArgumentNotContainedException
* if the passed {@code needle} can not be found in {@code haystack}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalArgumentNotContainedException.class })
public static T contains(final boolean condition, @Nonnull final Collection haystack, @Nonnull final T needle) {
if (condition) {
Check.contains(haystack, needle);
}
return needle;
}
/**
* Ensures that an element {@code needle} is contained in a collection {@code haystack}.
*
*
* This is in particular useful if you want to check whether an enum value is contained in an {@code EnumSet}. The
* check is implemented using {@link java.util.Collection#contains(Object)}.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param haystack
* A collection which must contain {@code needle}
* @param needle
* An object that must be contained into a collection.
* @param name
* name of argument of {@code needle}
* @return the passed argument {@code needle}
*
* @throws IllegalArgumentNotContainedException
* if the passed {@code needle} can not be found in {@code haystack}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalArgumentNotContainedException.class })
public static T contains(final boolean condition, @Nonnull final Collection haystack, @Nonnull final T needle,
@Nonnull final String name) {
if (condition) {
Check.contains(haystack, needle, name);
}
return needle;
}
/**
* Ensures that a passed boolean is equal to another boolean. The comparison is made using
* expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
*
* We recommend to use the overloaded method {@link Check#equals(boolean, boolean, String)} and pass as second
* argument the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* boolean to be checked
* @return the passed boolean argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static boolean equals(final boolean condition, @Nonnull final boolean expected, @Nonnull final boolean check) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check);
}
return check;
}
/**
* Ensures that a passed boolean is equal to another boolean. The comparison is made using
* expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* boolean to be checked
* @param message
* an error message describing why the booleans must equal (will be passed to
* {@code IllegalNotEqualException})
* @return the passed boolean argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static boolean equals(final boolean condition, @Nonnull final boolean expected, @Nonnull final boolean check,
final String message) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check, message);
}
return check;
}
/**
* Ensures that a passed byte is equal to another byte. The comparison is made using expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
*
* We recommend to use the overloaded method {@link Check#equals(byte, byte, String)} and pass as second argument
* the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* byte to be checked
* @return the passed byte argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static byte equals(final boolean condition, @Nonnull final byte expected, @Nonnull final byte check) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check);
}
return check;
}
/**
* Ensures that a passed byte is equal to another byte. The comparison is made using expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* byte to be checked
* @param message
* an error message describing why the bytes must equal (will be passed to
* {@code IllegalNotEqualException})
* @return the byte boolean argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static byte equals(final boolean condition, @Nonnull final byte expected, @Nonnull final byte check, final String message) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check, message);
}
return check;
}
/**
* Ensures that a passed char is equal to another char. The comparison is made using expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
*
* We recommend to use the overloaded method {@link Check#equals(char, char, String)} and pass as second argument
* the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* char to be checked
* @return the passed char argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static char equals(final boolean condition, @Nonnull final char expected, @Nonnull final char check) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check);
}
return check;
}
/**
* Ensures that a passed char is equal to another char. The comparison is made using expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* char to be checked
* @param message
* an error message describing why the chars must equal (will be passed to
* {@code IllegalNotEqualException})
* @return the passed char argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static char equals(final boolean condition, @Nonnull final char expected, @Nonnull final char check, final String message) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check, message);
}
return check;
}
/**
* Ensures that a passed intH is equal to another int. The comparison is made using expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
*
* We recommend to use the overloaded method {@link Check#equals(int, int, String)} and pass as second argument the
* name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* int to be checked
* @return the passed int argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static int equals(final boolean condition, @Nonnull final int expected, @Nonnull final int check) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check);
}
return check;
}
/**
* Ensures that a passed int is equal to another int. The comparison is made using expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* int to be checked
* @param message
* an error message describing why the ints must equal (will be passed to
* {@code IllegalNotEqualException})
* @return the passed int argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static int equals(final boolean condition, @Nonnull final int expected, @Nonnull final int check, final String message) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check, message);
}
return check;
}
/**
* Ensures that a passed long is equal to another long. The comparison is made using expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
*
* We recommend to use the overloaded method {@link Check#equals(long, long, String)} and pass as second argument
* the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* long to be checked
* @return the passed long argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static long equals(final boolean condition, @Nonnull final long expected, @Nonnull final long check) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check);
}
return check;
}
/**
* Ensures that a passed long is equal to another long. The comparison is made using expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* long to be checked
* @param message
* an error message describing why the longs must equal (will be passed to
* {@code IllegalNotEqualException})
* @return the passed long argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static long equals(final boolean condition, @Nonnull final long expected, @Nonnull final long check, final String message) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check, message);
}
return check;
}
/**
* Ensures that a passed short is equal to another short. The comparison is made using
* expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
*
* We recommend to use the overloaded method {@link Check#equals(short, short, String)} and pass as second argument
* the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* short to be checked
* @return the passed short argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static short equals(final boolean condition, @Nonnull final short expected, @Nonnull final short check) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check);
}
return check;
}
/**
* Ensures that a passed short is equal to another short. The comparison is made using
* expected != check.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* short to be checked
* @param message
* an error message describing why the shorts must equal (will be passed to
* {@code IllegalNotEqualException})
* @return the passed short {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@Throws(IllegalNotEqualException.class)
public static short equals(final boolean condition, @Nonnull final short expected, @Nonnull final short check, final String message) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
Check.equals(expected, check, message);
}
return check;
}
/**
* Ensures that a passed object is equal to another object. The comparison is made using a call to
* {@code expected.equals(check) }.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* Object to be checked
* @return the passed argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNotEqualException.class })
public static T equals(final boolean condition, @Nonnull final T expected, @Nonnull final T check) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
return Check.equals(expected, check);
}
return check;
}
/**
* Ensures that a passed object is equal to another object. The comparison is made using a call to
* {@code expected.equals(check) }.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* Object to be checked
* @param msg
* an error message describing why the objects must equal (will be passed to
* {@code IllegalNotEqualException})
* @return the passed argument {@code check}
*
* @throws IllegalNotEqualException
* if both argument values are not equal
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNotEqualException.class })
public static T equals(final boolean condition, @Nonnull final T expected, @Nonnull final T check, final String msg) { // NOSONAR
// Sonar warns about suspicious equals method name, as the name is intended deactivate sonar
if (condition) {
return Check.equals(expected, check);
}
return check;
}
/**
* Ensures that a passed {@code Comparable} is greater to another {@code Comparable}. The comparison is made using
* {@code expected.compareTo(check) >= 0}.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* Comparable to be checked
* @return the passed {@code Comparable} argument {@code check}
*
* @throws IllegalNotGreaterThanException
* if the argument value {@code check} is not greater than value {@code expected} when using method
* {@code compareTo}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNotGreaterThanException.class })
public static > T greaterThan(final boolean condition, @Nonnull final T expected, @Nonnull final T check) {
Check.notNull(expected, "expected");
Check.notNull(check, "check");
if (condition) {
Check.greaterThan(expected, check);
}
return check;
}
/**
* Ensures that a passed {@code Comparable} is greater than another {@code Comparable}. The comparison is made using
* {@code expected.compareTo(check) >= 0}.
*
*
* The condition must evaluate to {@code true} so that the check is executed.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* Comparable to be checked
* @param message
* an error message describing why the comparable must be greater than a value (will be passed to
* {@code IllegalNotGreaterThanException})
* @return the passed {@code Comparable} argument {@code check}
*
* @throws IllegalNotGreaterThanException
* if the argument value {@code check} is not greater than value {@code expected} when using method
* {@code compareTo}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNotGreaterThanException.class })
public static > T greaterThan(final boolean condition, @Nonnull final T expected, @Nonnull final T check,
final String message) {
Check.notNull(expected, "expected");
Check.notNull(check, "check");
if (condition) {
Check.greaterThan(expected, check, message);
}
return check;
}
/**
* Ensures that a passed class has an annotation of a specific type
*
* @param condition
* condition must be true so that the check is performed.
* @param clazz
* the class that must have a required annotation
* @param annotation
* the type of annotation that is required on the class
* @return the given annotation which is present on the checked class
*
* @throws IllegalMissingAnnotationException
* if the passed annotation is not annotated at the given class
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalMissingAnnotationException.class })
public static Annotation hasAnnotation(final boolean condition, @Nonnull final Class clazz,
@Nonnull final Class annotation) {
Check.notNull(clazz, "clazz");
Check.notNull(annotation, "annotation");
if (condition) {
return Check.hasAnnotation(clazz, annotation);
}
return clazz.getAnnotation(annotation);
}
/**
* Ensures that a passed argument is a member of a specific type.
*
* @param condition
* condition must be true so that the check is performed.
* @param type
* class that the given object is a member of
* @param obj
* the object reference that should be a member of a specific {@code type}
*
* @throws IllegalInstanceOfArgumentException
* if the given argument {@code obj} is not a member of {@code type}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalInstanceOfArgumentException.class })
@SuppressWarnings("unchecked")
public static T instanceOf(final boolean condition, @Nonnull final Class type, @Nonnull final Object obj) {
if (condition) {
return (T) Check.instanceOf(type, obj);
}
return (T) obj;
}
/**
* Ensures that a passed argument is a member of a specific type.
*
* @param condition
* condition must be true so that the check is performed.
* @param type
* class that the given object is a member of
* @param obj
* the object reference that should be a member of a specific {@code type}
* @param name
* name of object reference (in source code)
*
* @throws IllegalInstanceOfArgumentException
* if the given argument {@code obj} is not a member of {@code type}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalInstanceOfArgumentException.class })
@SuppressWarnings("unchecked")
public static T instanceOf(final boolean condition, @Nonnull final Class type, @Nonnull final Object obj,
@Nullable final String name) {
if (condition) {
return (T) Check.instanceOf(type, obj, name);
}
return (T) obj;
}
/**
* Ensures that a given argument is {@code null}.
*
* Normally, the usage of {@code null} arguments is disregarded by the authors of quality-check. Still, there are
* certain circumstances where null is required, e.g. the primary key of an entity before it is written to the
* database for the first time. In such cases it is ok to use null values and there should also be checks for them.
* For example, to avoid overwriting an existing primary key with a new one.
*
* @param condition
* condition must be true so that the check is performed.
* @param reference
* reference which must be null
*
* @throws IllegalNotNullArgumentException
* if the given argument {@code reference} is not null
*/
@Throws(IllegalNotNullArgumentException.class)
public static void isNull(final boolean condition, @Nullable final Object reference) {
if (condition) {
Check.isNull(reference);
}
}
/**
* Ensures that a given argument is {@code null}.
*
* Normally, the usage of {@code null} arguments is disregarded by the authors of quality-check. Still, there are
* certain circumstances where null is required, e.g. the primary key of an entity before it is written to the
* database for the first time. In such cases it is ok to use null values and there should also be checks for them.
* For example, to avoid overwriting an existing primary key with a new one.
*
* @param condition
* condition must be true so that the check is performed.
* @param reference
* reference which must be null.
* @param name
* name of object reference (in source code)
*
* @throws IllegalNotNullArgumentException
* if the given argument {@code reference} is not null
*/
@Throws(IllegalNotNullArgumentException.class)
public static void isNull(final boolean condition, @Nullable final Object reference, @Nullable final String name) {
if (condition) {
Check.isNull(reference, name);
}
}
/**
* Ensures that a String argument is a number.
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* value which must be a number
* @throws IllegalNumberArgumentException
* if the given argument {@code value} is not a number
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNumberArgumentException.class })
public static void isNumber(final boolean condition, @Nonnull final String value) {
if (condition) {
Check.isNumber(value);
}
}
/**
* Ensures that a String argument is a number. This overload supports all subclasses of {@code Number}. The number
* is first converted to a BigInteger
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* value which must be a number
* @param type
* requested return value type, must be a subclass of {@code Number}, i.e. one of {@code BigDecimal,
* BigInteger, Byte, Double, Float, Integer, Long, Short}
*
* @throws IllegalNumberArgumentException
* if the given argument {@code value} is no number
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNumberArgumentException.class })
public static void isNumber(final boolean condition, @Nonnull final String value, @Nonnull final Class type) {
if (condition) {
Check.isNumber(value, type);
}
}
/**
* Ensures that a string argument is a number according to {@code Integer.parseInt}
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* value which must be a number
* @param name
* name of object reference (in source code)
*
* @throws IllegalNumberArgumentException
* if the given argument {@code value} is no number
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNumberArgumentException.class })
public static void isNumber(final boolean condition, @Nonnull final String value, @Nullable final String name) {
if (condition) {
Check.isNumber(value, name);
}
}
/**
* Ensures that a String argument is a number. This overload supports all subclasses of {@code Number}. The number
* is first converted to a {@code BigDecimal} or {@code BigInteger}. Floating point types are only supported if the
* {@code type} is one of {@code Float, Double, BigDecimal}.
*
*
* This method does also check against the ranges of the given datatypes.
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* value which must be a number and in the range of the given datatype.
* @param name
* (optional) name of object reference (in source code).
* @param type
* requested return value type, must be a subclass of {@code Number}, i.e. one of {@code BigDecimal,
* BigInteger, Byte, Double, Float, Integer, Long, Short}
* @throws IllegalNumberArgumentException
* if the given argument {@code value} is no number
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNumberArgumentException.class })
public static void isNumber(final boolean condition, @Nonnull final String value, @Nullable final String name,
@Nonnull final Class type) {
if (condition) {
Check.isNumber(value, name, type);
}
}
/**
* Ensures that a readable sequence of {@code char} values is numeric. Numeric arguments consist only of the
* characters 0-9 and may start with 0 (compared to number arguments, which must be valid numbers - think of a bank
* account number).
*
*
* We recommend to use the overloaded method {@link Check#isNumeric(CharSequence, String)} and pass as second
* argument the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* a readable sequence of {@code char} values which must be a number
* @return the given string argument
* @throws IllegalNumberArgumentException
* if the given argument {@code value} is no number
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNumberArgumentException.class })
public static T isNumeric(final boolean condition, @Nonnull final T value) {
if (condition) {
return (T) Check.isNumeric(value);
}
return (T) value;
}
/**
* Ensures that a readable sequence of {@code char} values is numeric. Numeric arguments consist only of the
* characters 0-9 and may start with 0 (compared to number arguments, which must be valid numbers - think of a bank
* account number).
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* a readable sequence of {@code char} values which must be a number
* @param name
* name of object reference (in source code)
* @return the given string argument
* @throws IllegalNumberArgumentException
* if the given argument {@code value} is no number
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNumericArgumentException.class })
public static T isNumeric(final boolean condition, @Nonnull final T value, @Nullable final String name) {
if (condition) {
return (T) Check.isNumeric(value, name);
}
return (T) value;
}
/**
* Ensures that a passed {@code Comparable} is less than another {@code Comparable}. The comparison is made using
* {@code expected.compareTo(check) <= 0}.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* Comparable to be checked
* @return the passed {@code Comparable} argument {@code check}
*
* @throws IllegalNotLesserThanException
* if the argument value {@code check} is not lesser than value {@code expected} when using method
* {@code compareTo}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNotLesserThanException.class })
public static > T lesserThan(final boolean condition, @Nonnull final T expected, @Nonnull final T check) {
Check.notNull(expected, "expected");
Check.notNull(check, "check");
if (condition) {
Check.lesserThan(expected, check);
}
return check;
}
/**
* Ensures that a passed {@code Comparable} is less than another {@code Comparable}. The comparison is made using
* {@code expected.compareTo(check) <= 0}.
*
* @param condition
* condition must be true so that the check is performed.
* @param expected
* Expected value
* @param check
* Comparable to be checked
* @param message
* an error message describing why the comparables must be less than a value (will be passed to
* {@code IllegalNotLessThanException})
* @return the passed {@code Comparable} argument {@code check}
*
* @throws IllegalNotLesserThanException
* if the argument value {@code check} is not lesser than value {@code expected} when using method
* {@code compareTo}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNotLesserThanException.class })
public static > T lesserThan(final boolean condition, @Nonnull final T expected, @Nonnull final T check,
final String message) {
Check.notNull(expected, "expected");
Check.notNull(check, "check");
if (condition) {
Check.lesserThan(expected, check, message);
}
return check;
}
/**
* Ensures that a readable sequence of {@code char} values matches a specified pattern. If the given character
* sequence does not match against the passed pattern, an {@link IllegalPatternArgumentException} will be thrown.
*
*
* We recommend to use the overloaded method {@link Check#matchesPattern(Pattern, CharSequence, String)} and pass as
* second argument the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param pattern
* pattern, that the {@code chars} must correspond to
* @param chars
* a readable sequence of {@code char} values which should match the given pattern
* @return the passed {@code chars} that matches the given pattern
*
* @throws IllegalNullArgumentException
* if the given argument {@code chars} is {@code null}
* @throws IllegalPatternArgumentException
* if the given {@code chars} that does not match the {@code pattern}
*/
@ArgumentsChecked
@Throws(IllegalNullArgumentException.class)
public static T matchesPattern(final boolean condition, @Nonnull final Pattern pattern, @Nonnull final T chars) {
if (condition) {
return Check.matchesPattern(pattern, chars);
}
return chars;
}
/**
* Ensures that a readable sequence of {@code char} values matches a specified pattern. If the given character
* sequence does not match against the passed pattern, an {@link IllegalPatternArgumentException} will be thrown.
*
* @param condition
* condition must be true so that the check is performed.
* @param pattern
* pattern, that the {@code chars} must correspond to
* @param chars
* a readable sequence of {@code char} values which should match the given pattern
* @param name
* name of object reference (in source code)
* @return the passed {@code chars} that matches the given pattern
* @throws IllegalNullArgumentException
* if the given argument {@code chars} is {@code null}
* @throws IllegalPatternArgumentException
* if the given {@code chars} that does not match the {@code pattern}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalPatternArgumentException.class })
public static T matchesPattern(final boolean condition, @Nonnull final Pattern pattern,
@Nonnull final T chars, @Nullable final String name) {
if (condition) {
return Check.matchesPattern(pattern, chars, name);
}
return chars;
}
/**
* Ensures that an iterable reference is neither {@code null} nor contains any elements that are {@code null}.
*
*
* We recommend to use the overloaded method {@link Check#noNullElements(Iterable, String)} and pass as second
* argument the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param iterable
* the iterable reference which should not contain {@code null}
* @return the passed reference which contains no elements that are {@code null}
* @throws IllegalNullElementsException
* if the given argument {@code iterable} contains elements that are {@code null}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNullElementsException.class })
public static > T noNullElements(final boolean condition, @Nonnull final T iterable) {
if (condition) {
return Check.noNullElements(iterable);
}
return iterable;
}
/**
* Ensures that an iterable reference is neither {@code null} nor contains any elements that are {@code null}.
*
* @param condition
* condition must be true so that the check is performed.
* @param iterable
* the iterable reference which should not contain {@code null}
* @param name
* name of object reference (in source code)
* @return the passed reference which contains no elements that are {@code null}
* @throws IllegalNullElementsException
* if the given argument {@code iterable} contains elements that are {@code null}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNullElementsException.class })
public static > T noNullElements(final boolean condition, @Nonnull final T iterable, final String name) {
if (condition) {
return Check.noNullElements(iterable, name);
}
return iterable;
}
/**
* Ensures that an array does not contain {@code null}.
*
*
* We recommend to use the overloaded method {@link Check#noNullElements(Object[], String)} and pass as second
* argument the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param array
* reference to an array
* @return the passed reference which contains no elements that are {@code null}
* @throws IllegalNullElementsException
* if the given argument {@code array} contains {@code null}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNullElementsException.class })
public static T[] noNullElements(final boolean condition, @Nonnull final T[] array) {
if (condition) {
return Check.noNullElements(array);
}
return array;
}
/**
* Ensures that an array does not contain {@code null}.
*
* @param condition
* condition must be true so that the check is performed.
* @param array
* reference to an array
* @param name
* name of object reference (in source code)
* @return the passed reference which contains no elements that are {@code null}
* @throws IllegalNullElementsException
* if the given argument {@code array} contains {@code null}
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalNullElementsException.class })
public static T[] noNullElements(final boolean condition, @Nonnull final T[] array, @Nullable final String name) {
if (condition) {
return Check.noNullElements(array, name);
}
return array;
}
/**
* Ensures that a passed parameter of the calling method is not empty, using the passed expression to evaluate the
* emptiness.
*
*
* We recommend to use the overloaded method {@link Check#notEmpty(boolean, String)} and pass as second argument the
* name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param expression
* the result of the expression to verify the emptiness of a reference ({@code true} means empty,
* {@code false} means not empty)
*
* @throws IllegalNullArgumentException
* if the given argument {@code reference} is {@code null}
* @throws IllegalEmptyArgumentException
* if the given argument {@code reference} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static void notEmpty(final boolean condition, final boolean expression) {
if (condition) {
Check.notEmpty(expression);
}
}
/**
* Ensures that a passed parameter of the calling method is not empty, using the passed expression to evaluate the
* emptiness.
*
* @param condition
* condition must be true so that the check is performed.
* @param expression
* the result of the expression to verify the emptiness of a reference ({@code true} means empty,
* {@code false} means not empty)
* @param name
* name of object reference (in source code)
*
* @throws IllegalEmptyArgumentException
* if the given argument {@code reference} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static void notEmpty(final boolean condition, final boolean expression, @Nullable final String name) {
if (condition) {
Check.notEmpty(expression, name);
}
}
/**
* Ensures that a passed string as a parameter of the calling method is not empty.
*
*
* We recommend to use the overloaded method {@link Check#notEmpty(CharSequence, String)} and pass as second
* argument the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param chars
* a readable sequence of {@code char} values which should not be empty
* @return the passed reference that is not empty
* @throws IllegalNullArgumentException
* if the given argument {@code reference} is {@code null}
* @throws IllegalEmptyArgumentException
* if the given argument {@code reference} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static T notEmpty(final boolean condition, @Nonnull final T chars) {
if (condition) {
return Check.notEmpty(chars);
}
return chars;
}
/**
* Ensures that a passed collection as a parameter of the calling method is not empty.
*
*
* We recommend to use the overloaded method {@link Check#notEmpty(Collection, String)} and pass as second argument
* the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param collection
* a collection which should not be empty
* @return the passed reference that is not empty
* @throws IllegalNullArgumentException
* if the given argument {@code collection} is {@code null}
* @throws IllegalEmptyArgumentException
* if the given argument {@code collection} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static > T notEmpty(final boolean condition, @Nonnull final T collection) {
if (condition) {
return Check.notEmpty(collection);
}
return collection;
}
/**
* Ensures that a passed map as a parameter of the calling method is not empty.
*
*
* We recommend to use the overloaded method {@link Check#notEmpty(Collection, String)} and pass as second argument
* the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param map
* a map which should not be empty
* @return the passed reference that is not empty
* @throws IllegalNullArgumentException
* if the given argument {@code map} is {@code null}
* @throws IllegalEmptyArgumentException
* if the given argument {@code map} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static > T notEmpty(final boolean condition, @Nonnull final T map) {
if (condition) {
return Check.notEmpty(map);
}
return map;
}
/**
* Ensures that an object reference passed as a parameter to the calling method is not empty. The passed boolean
* value is the result of checking whether the reference is empty or not.
*
*
* The following example describes how to use it.
*
*
* @ArgumentsChecked
* public setText(String text) {
* ConditionalCheck.notEmpty(true, text, text.isEmpty(), "text");
* this.text = text;
* }
*
*
* @param condition
* condition must be true so that the check is performed.
* @param reference
* an object reference which should not be empty
* @param expression
* the result of the expression to verify the emptiness of a reference ({@code true} means empty,
* {@code false} means not empty)
* @param name
* name of object reference (in source code)
* @return the passed reference that is not empty
* @throws IllegalNullArgumentException
* if the given argument {@code reference} is {@code null}
* @throws IllegalEmptyArgumentException
* if the given argument {@code reference} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static T notEmpty(final boolean condition, @Nonnull final T reference, final boolean expression, @Nullable final String name) {
if (condition) {
return Check.notEmpty(reference, expression, name);
}
return reference;
}
/**
* Ensures that a passed string as a parameter of the calling method is not empty.
*
*
* The following example describes how to use it.
*
*
* @ArgumentsChecked
* public setText(String text) {
* this.text = Check.notEmpty(text, "text");
* }
*
*
* @param condition
* condition must be true so that the check is performed.
* @param chars
* a readable sequence of {@code char} values which should not be empty
* @param name
* name of object reference (in source code)
* @return the passed reference that is not empty
* @throws IllegalNullArgumentException
* if the given argument {@code string} is {@code null}
* @throws IllegalEmptyArgumentException
* if the given argument {@code string} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static T notEmpty(final boolean condition, @Nonnull final T chars, @Nullable final String name) {
if (condition) {
return Check.notEmpty(chars, name);
}
return chars;
}
/**
* Ensures that a passed map as a parameter of the calling method is not empty.
*
*
* We recommend to use the overloaded method {@link Check#notEmpty(Collection, String)} and pass as second argument
* the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param map
* a map which should not be empty
* @param name
* name of object reference (in source code)
* @return the passed reference that is not empty
* @throws IllegalNullArgumentException
* if the given argument {@code map} is {@code null}
* @throws IllegalEmptyArgumentException
* if the given argument {@code map} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static > T notEmpty(final boolean condition, @Nonnull final T map, @Nullable final String name) {
if (condition) {
return Check.notEmpty(map, name);
}
return map;
}
/**
* Ensures that a passed collection as a parameter of the calling method is not empty.
*
*
* The following example describes how to use it.
*
*
* @ArgumentsChecked
* public setCollection(Collection<String> collection) {
* this.collection = Check.notEmpty(collection, "collection");
* }
*
*
* @param condition
* condition must be true so that the check is performed.
* @param collection
* a collection which should not be empty
* @param name
* name of object reference (in source code)
* @return the passed reference that is not empty
* @throws IllegalNullArgumentException
* if the given argument {@code collection} is {@code null}
* @throws IllegalEmptyArgumentException
* if the given argument {@code collection} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static > T notEmpty(final boolean condition, @Nonnull final T collection, @Nullable final String name) {
if (condition) {
return Check.notEmpty(collection, name);
}
return collection;
}
/**
* Ensures that a passed map as a parameter of the calling method is not empty.
*
*
* We recommend to use the overloaded method {@link Check#notEmpty(Object[], String)} and pass as second argument
* the name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param array
* a map which should not be empty
* @return the passed reference that is not empty
* @throws IllegalNullArgumentException
* if the given argument {@code array} is {@code null}
* @throws IllegalEmptyArgumentException
* if the given argument {@code array} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static T[] notEmpty(final boolean condition, @Nonnull final T[] array) {
if (condition) {
return Check.notEmpty(array);
}
return array;
}
/**
* Ensures that a passed map as a parameter of the calling method is not empty.
*
* @param condition
* condition must be true so that the check is performed.
* @param array
* a map which should not be empty
* @param name
* name of object reference (in source code)
* @return the passed reference that is not empty
* @throws IllegalNullArgumentException
* if the given argument {@code array} is {@code null}
* @throws IllegalEmptyArgumentException
* if the given argument {@code array} is empty
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, IllegalEmptyArgumentException.class })
public static T[] notEmpty(final boolean condition, @Nonnull final T[] array, @Nullable final String name) {
if (condition) {
return Check.notEmpty(array, name);
}
return array;
}
/**
* Ensures that a double argument is not NaN (not a number).
*
*
* We recommend to use the overloaded method {@link Check#notNaN(double, String)} and pass as second argument the
* name of the parameter to enhance the exception message.
*
* @see java.lang.Double#NaN
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* value which should not be NaN
* @return the given double value
* @throws IllegalNaNArgumentException
* if the given argument {@code value} is NaN
*/
@Throws(IllegalNaNArgumentException.class)
public static double notNaN(final boolean condition, final double value) {
if (condition) {
return Check.notNaN(value);
}
return value;
}
/**
* Ensures that a double argument is not NaN (not a number).
*
* @see java.lang.Double#NaN
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* value which should not be NaN
* @param name
* name of object reference (in source code)
* @return the given double value
* @throws IllegalNaNArgumentException
* if the given argument {@code value} is NaN
*/
@Throws(IllegalNaNArgumentException.class)
public static double notNaN(final boolean condition, final double value, @Nullable final String name) {
if (condition) {
return Check.notNaN(value, name);
}
return value;
}
/**
* Ensures that a double argument is not NaN (not a number).
*
*
* We recommend to use the overloaded method {@link Check#notNaN(float, String)} and pass as second argument the
* name of the parameter to enhance the exception message.
*
* @see java.lang.Float#NaN
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* value which should not be NaN
* @return the given double value
* @throws IllegalNaNArgumentException
* if the given argument {@code value} is NaN
*/
@Throws(IllegalNaNArgumentException.class)
public static float notNaN(final boolean condition, final float value) {
if (condition) {
return Check.notNaN(value);
}
return value;
}
/**
* Ensures that a double argument is not NaN (not a number).
*
* @see java.lang.Float#NaN
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* value which should not be NaN
* @param name
* name of object reference (in source code)
* @return the given float value
* @throws IllegalNaNArgumentException
* if the given argument {@code value} is NaN
*/
@Throws(IllegalNaNArgumentException.class)
public static float notNaN(final boolean condition, final float value, @Nullable final String name) {
if (condition) {
return Check.notNaN(value, name);
}
return value;
}
/**
* Ensures that an integer reference passed as a parameter to the calling method is not smaller than {@code 0}.
*
*
* We recommend to use the overloaded method {@link Check#notNegative(int, String)} and pass as second argument the
* name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* a number
* @param name
* name of object reference (in source code)
* @return the non-null reference that was validated
* @throws IllegalNegativeArgumentException
* if the given argument {@code reference} is smaller than {@code 0}
*/
@Throws(IllegalNegativeArgumentException.class)
public static int notNegative(final boolean condition, @Nonnull final int value) {
if (condition) {
return Check.notNegative(value);
}
return value;
}
/**
* Ensures that an integer reference passed as a parameter to the calling method is not smaller than {@code 0}.
*
* @param condition
* condition must be true so that the check is performed.
* @param value
* a number
* @param name
* name of the number reference (in source code)
* @return the non-null reference that was validated
* @throws IllegalNullArgumentException
* if the given argument {@code reference} is smaller than {@code 0}
*/
@Throws(IllegalNegativeArgumentException.class)
public static int notNegative(final boolean condition, @Nonnull final int value, @Nullable final String name) {
if (condition) {
return Check.notNegative(value, name);
}
return value;
}
/**
* Ensures that an object reference passed as a parameter to the calling method is not {@code null}.
*
*
* We recommend to use the overloaded method {@link Check#notNull(Object, String)} and pass as second argument the
* name of the parameter to enhance the exception message.
*
* @param condition
* condition must be true so that the check is performed.
* @param reference
* an object reference
* @return the non-null reference that was validated
* @throws IllegalNullArgumentException
* if the given argument {@code reference} is {@code null}
*/
@Throws(IllegalNullArgumentException.class)
public static T notNull(final boolean condition, @Nonnull final T reference) {
if (condition) {
return Check.notNull(reference);
}
return reference;
}
/**
* Ensures that an object reference passed as a parameter to the calling method is not {@code null}.
*
* @param condition
* condition must be true so that the check is performed.
* @param reference
* an object reference
* @param name
* name of object reference (in source code)
* @return the non-null reference that was validated
* @throws IllegalNullArgumentException
* if the given argument {@code reference} is {@code null}
*/
@Throws(IllegalNullArgumentException.class)
public static T notNull(final boolean condition, @Nonnull final T reference, @Nullable final String name) {
if (condition) {
return Check.notNull(reference, name);
}
return reference;
}
/**
* Ensures that a given position index is valid within the size of an array, list or string ...
*
* @param condition
* condition must be true so that the check is performed.
* @param index
* index of an array, list or string
* @param size
* size of an array list or string
* @return the index
*
* @throws IllegalPositionIndexException
* if the index is not a valid position index within an array, list or string of size size
*
*/
@Throws(IllegalPositionIndexException.class)
public static int positionIndex(final boolean condition, final int index, final int size) {
if (condition) {
return Check.positionIndex(index, size);
}
return index;
}
/**
* Ensures that the given arguments are a valid range.
*
* A range (start, end, size) is valid if the following conditions are {@code true}:
*
* - start <= size
* - end <= size
* - start <= end
* - size >= 0
* - start >= 0
* - end >= 0
*
*
* @param condition
* condition must be true so that the check is performed.
* @param start
* the start value of the range (must be a positive integer or 0)
* @param end
* the end value of the range (must be a positive integer or 0)
* @param size
* the size value of the range (must be a positive integer or 0)
*
* @throws IllegalRangeException
* if the given arguments do not form a valid range
*/
@Throws(IllegalRangeException.class)
public static void range(final boolean condition, @Nonnegative final int start, @Nonnegative final int end, @Nonnegative final int size) {
if (condition) {
Check.range(start, end, size);
}
}
/**
* Ensures that a given state is {@code true}.
*
*
* We recommend to use the overloaded method {@link Check#stateIsTrue(boolean, String)} and pass as second argument
* the name of the parameter to enhance the exception message. A better way is to create specific exceptions (with a
* good wording) for your case and to use the overloaded method {@link Check#stateIsTrue(boolean, Class)} and pass
* as second argument your exception.
*
* @param condition
* condition must be true so that the check is performed.
* @param expression
* an expression that must be true to indicate a valid state
*
* @throws IllegalStateOfArgumentException
* if the given arguments caused an invalid state
*/
@Throws(IllegalStateOfArgumentException.class)
public static void stateIsTrue(final boolean condition, final boolean expression) {
if (condition) {
Check.stateIsTrue(expression);
}
}
/**
* Ensures that a given state is {@code true} and allows to specify the class of exception which is thrown in case
* the state is not {@code true}.
*
* @param condition
* condition must be true so that the check is performed.
* @param expression
* an expression that must be {@code true} to indicate a valid state
* @param clazz
* an subclass of {@link RuntimeException} which will be thrown if the given state is not valid
* @throws clazz
* a new instance of {@code clazz} if the given arguments caused an invalid state
* @throws RuntimeInstantiationException
* Attention: Be aware, that a {@code RuntimeInstantiationException} can be thrown when
* the given {@code clazz} cannot be instantiated
*/
@ArgumentsChecked
@Throws({ IllegalNullArgumentException.class, RuntimeInstantiationException.class })
public static void stateIsTrue(final boolean condition, final boolean expression, final Class clazz) {
if (condition) {
Check.stateIsTrue(expression, clazz);
}
}
/**
* Ensures that a given state is {@code true}.
*
* @param condition
* condition must be true so that the check is performed.
* @param expression
* an expression that must be {@code true} to indicate a valid state
* @param description
* will be used in the error message to describe why the arguments caused an invalid state
* @throws IllegalStateOfArgumentException
* if the given arguments caused an invalid state
*/
@Throws(IllegalStateOfArgumentException.class)
public static void stateIsTrue(final boolean condition, final boolean expression, @Nonnull final String description) {
if (condition) {
Check.stateIsTrue(expression, description);
}
}
/**
* Ensures that a given state is {@code true}
*
* @param condition
* condition must be true so that the check is performed.
* @param expression
* an expression that must be {@code true} to indicate a valid state
* @param descriptionTemplate
* format string template that explains why the state is invalid
* @param descriptionTemplateArgs
* format string template arguments to explain why the state is invalid
* @throws IllegalStateOfArgumentException
* if the given arguments caused an invalid state
*/
@Throws(IllegalStateOfArgumentException.class)
public static void stateIsTrue(final boolean condition, final boolean expression, @Nonnull final String descriptionTemplate,
final Object... descriptionTemplateArgs) {
if (condition) {
Check.stateIsTrue(expression, descriptionTemplate, descriptionTemplateArgs);
}
}
/**
* Attention: This class is not intended to create objects from it.
*/
private ConditionalCheck() {
// This class is not intended to create objects from it.
}
}