| /* |
| |
| Derby - Class org.apache.derbyTesting.functionTests.harness.TimedProcess |
| |
| 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.derbyTesting.functionTests.harness; |
| |
| /** |
| * This class is a wrapper of Process to provide a waitFor() method |
| * that forcibly terminates the process if it does not |
| * complete within the specified time. |
| * |
| * |
| */ |
| public class TimedProcess |
| { |
| |
| private Process process; |
| |
| public TimedProcess(Process process) |
| { |
| this.process = process; |
| } |
| |
| public int waitFor(int sec) |
| { |
| int exitValue = -1; |
| |
| // Create a thread to wait for the process to die |
| WaitForProcess t = new WaitForProcess(process); |
| t.start(); |
| |
| // Give the process sec seconds to terminate |
| try |
| { |
| t.join(sec * 1000); |
| |
| // Otherwise, interrupt the thread... |
| if (t.isAlive()) |
| { |
| t.interrupt(); |
| |
| System.err.println("Server Process did not complete in time. Destroying..."); |
| // ...and destroy the process with gusto |
| process.destroy(); |
| } |
| else |
| { |
| // process shut down, so it is right to get the exit value from it |
| exitValue = t.getProcessExitValue(); |
| } |
| } |
| catch (InterruptedException e) |
| { |
| e.printStackTrace(); |
| } |
| |
| return exitValue; |
| } |
| } // public class TimedProcess |
| |
| |
| class WaitForProcess |
| extends Thread |
| { |
| private Process process; |
| private int processExitValue; |
| |
| public WaitForProcess(Process process) |
| { |
| this.process = process; |
| } |
| |
| public int getProcessExitValue() |
| { |
| return processExitValue; |
| } |
| |
| public void run() |
| { |
| // Our whole goal in life here is to waitFor() the process. |
| // However, we're actually going to catch the InterruptedException for it! |
| try |
| { |
| processExitValue = process.waitFor(); |
| } |
| catch (InterruptedException e) |
| { |
| // Don't do anything here; the thread will die of natural causes |
| } |
| } |
| } // class WaitForProcess |
| |