Smack/smack-debug-slf4j/src/main/java/org/jivesoftware/smackx/debugger/slf4j/Validate.java

38 lines
1.1 KiB
Java

/**
*
* Copyright 2014 Vyacheslav Blinov
*
* 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 org.jivesoftware.smackx.debugger.slf4j;
/**
* This is package-level helper class to validate dependencies while initialization is in progress
*/
final class Validate {
private Validate() { /* do not create instances */ }
public static <T> T notNull(T instance) {
return notNull(instance, null);
}
public static <T> T notNull(T instance, String message) {
if (instance == null) {
throw new NullPointerException(message);
} else {
return instance;
}
}
}