HADOOP-2297 System.exit() Handling in hbase shell jar command
Forgot to add new files in last commit git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk/src/contrib/hbase@599714 13f79535-47bb-0310-9956-ffa450edef68
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/**
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* Copyright 2007 The Apache Software Foundation
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hbase.shell;
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public class ExitException extends SecurityException {
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private static final long serialVersionUID = -8085525076856622991L;
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/** Status code */
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private int status;
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/**
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* Constructs an exit exception.
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*
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* @param status the status code returned via System.exit()
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*/
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public ExitException(int status) {
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this.status = status;
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}
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/**
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* The status code returned by System.exit()
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*
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* @return the status code returned by System.exit()
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*/
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public int getStatus() {
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return status;
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}
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}
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/**
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* Copyright 2007 The Apache Software Foundation
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.hbase.shell;
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import java.io.IOException;
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import java.security.Permission;
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import org.apache.hadoop.hbase.Shell;
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/**
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* This is intended as a replacement for the default system manager. The goal is
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* to intercept System.exit calls and make it throw an exception instead so that
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* a System.exit in a jar command program does not fully terminate Shell.
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*
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* @see ExitException
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*/
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public class ShellSecurityManager extends SecurityManager {
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/**
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* Override SecurityManager#checkExit. This throws an ExitException(status)
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* exception.
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*
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* @param status the exit status
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*/
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@SuppressWarnings("static-access")
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public void checkExit(int status) {
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if (status != 9999) {
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// throw new ExitException(status);
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// I didn't figure out How can catch the ExitException in shell main.
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// So, I just Re-launching the shell.
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Shell shell = new Shell();
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String[] args = new String[] { String.valueOf(status) };
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try {
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shell.main(args);
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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/**
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* Override SecurityManager#checkPermission. This does nothing.
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*
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* @param perm the requested permission.
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*/
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public void checkPermission(Permission perm) {
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}
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}
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