ProcessOutput.java

/**
 * 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.jooby;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

public class ProcessOutput extends Thread {
  private volatile boolean stopped = false;

  private BufferedReader reader;

  public ProcessOutput(final InputStream in) {
    this.reader = new BufferedReader(new InputStreamReader(in), 2048);
    setDaemon(true);
  }

  public void stopIt() {
    stopped = true;
    interrupt();
  }

  @Override
  public void run() {
    try {
      String line = reader.readLine();
      while (line != null) {
        if (stopped) {
          break;
        }
        System.out.println(line);
        line = reader.readLine();
      }
    } catch (IOException ex) {
      throw new IllegalStateException("Error found while reading output", ex);
    }
  }
}