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package org.jsoup.helper;
/**
* Simple validation methods. Designed for jsoup internal use
*/
public final class Validate {
private Validate() {}
/**
* Validates that the object is not null
* @param obj object to test
*/
public static void notNull(Object obj) {
if (obj == null)
throw new IllegalArgumentException("Object must not be null");
}
/**
* Validates that the object is not null
* @param obj object to test
* @param msg message to output if validation fails
*/
public static void notNull(Object obj, String msg) {
if (obj == null)
throw new IllegalArgumentException(msg);
}
/**
* Validates that the value is true
* @param val object to test
*/
public static void isTrue(boolean val) {
if (!val)
throw new IllegalArgumentException("Must be true");
}
/**
* Validates that the value is true
* @param val object to test
* @param msg message to output if validation fails
*/
public static void isTrue(boolean val, String msg) {
if (!val)
throw new IllegalArgumentException(msg);
}
/**
* Validates that the value is false
* @param val object to test
*/
public static void isFalse(boolean val) {
if (val)
throw new IllegalArgumentException("Must be false");
}
/**
* Validates that the value is false
* @param val object to test
* @param msg message to output if validation fails
*/
public static void isFalse(boolean val, String msg) {
if (val)
throw new IllegalArgumentException(msg);
}
/**
* Validates that the array contains no null elements
* @param objects the array to test
*/
public static void noNullElements(Object[] objects) {
noNullElements(objects, "Array must not contain any null objects");
}
/**
* Validates that the array contains no null elements
* @param objects the array to test
* @param msg message to output if validation fails
*/
public static void noNullElements(Object[] objects, String msg) {
for (Object obj : objects)
if (obj == null)
throw new IllegalArgumentException(msg);
}
/**
* Validates that the string is not empty
* @param string the string to test
*/
public static void notEmpty(String string) {
if (string == null || string.length() == 0)
throw new IllegalArgumentException("String must not be empty");
}
/**
* Validates that the string is not empty
* @param string the string to test
* @param msg message to output if validation fails
*/
public static void notEmpty(String string, String msg) {
if (string == null || string.length() == 0)
throw new IllegalArgumentException(msg);
}
/**
Cause a failure.
@param msg message to output.
*/
public static void fail(String msg) {
throw new IllegalArgumentException(msg);
}
}
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