org.apache.kafka.common.utils.Exit 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 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.apache.kafka.common.utils;
/**
* Internal class that should be used instead of `Exit.exit()` and `Runtime.getRuntime().halt()` so that tests can
* easily change the behaviour.
*/
public class Exit {
public interface Procedure {
void execute(int statusCode, String message);
}
private static final Procedure DEFAULT_HALT_PROCEDURE = new Procedure() {
@Override
public void execute(int statusCode, String message) {
Runtime.getRuntime().halt(statusCode);
}
};
private static final Procedure DEFAULT_EXIT_PROCEDURE = new Procedure() {
@Override
public void execute(int statusCode, String message) {
System.exit(statusCode);
}
};
private volatile static Procedure exitProcedure = DEFAULT_EXIT_PROCEDURE;
private volatile static Procedure haltProcedure = DEFAULT_HALT_PROCEDURE;
public static void exit(int statusCode) {
exit(statusCode, null);
}
public static void exit(int statusCode, String message) {
exitProcedure.execute(statusCode, message);
}
public static void halt(int statusCode) {
halt(statusCode, null);
}
public static void halt(int statusCode, String message) {
haltProcedure.execute(statusCode, message);
}
public static void setExitProcedure(Procedure procedure) {
exitProcedure = procedure;
}
public static void setHaltProcedure(Procedure procedure) {
haltProcedure = procedure;
}
public static void resetExitProcedure() {
exitProcedure = DEFAULT_EXIT_PROCEDURE;
}
public static void resetHaltProcedure() {
haltProcedure = DEFAULT_HALT_PROCEDURE;
}
}