org.apache.hadoop.service.launcher.ServiceLaunchException Maven / Gradle / Ivy
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* 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.hadoop.service.launcher;
import java.util.Locale;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.util.ExitCodeProvider;
import org.apache.hadoop.util.ExitUtil;
/**
* A service launch exception that includes an exit code.
*
* When caught by the ServiceLauncher, it will convert that
* into a process exit code.
*
* The {@link #ServiceLaunchException(int, String, Object...)} constructor
* generates formatted exceptions.
*/
@InterfaceAudience.Public
@InterfaceStability.Evolving
public class ServiceLaunchException extends ExitUtil.ExitException
implements ExitCodeProvider, LauncherExitCodes {
/**
* Create an exception with the specific exit code.
* @param exitCode exit code
* @param cause cause of the exception
*/
public ServiceLaunchException(int exitCode, Throwable cause) {
super(exitCode, cause);
}
/**
* Create an exception with the specific exit code and text.
* @param exitCode exit code
* @param message message to use in exception
*/
public ServiceLaunchException(int exitCode, String message) {
super(exitCode, message);
}
/**
* Create a formatted exception.
*
* This uses {@link String#format(String, Object...)}
* to build the formatted exception in the ENGLISH locale.
*
* If the last argument is a throwable, it becomes the cause of the exception.
* It will also be used as a parameter for the format.
* @param exitCode exit code
* @param format format for message to use in exception
* @param args list of arguments
*/
public ServiceLaunchException(int exitCode, String format, Object... args) {
super(exitCode, String.format(Locale.ENGLISH, format, args));
if (args.length > 0 && (args[args.length - 1] instanceof Throwable)) {
initCause((Throwable) args[args.length - 1]);
}
}
}