| /****************************************************************************** |
| * Copyright (c) 2006 IBM Corporation. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - Initial Implementation |
| * |
| *****************************************************************************/ |
| |
| package org.eclipse.ptp.remotetools.utils.stream; |
| |
| import java.io.BufferedReader; |
| import java.io.EOFException; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InputStreamReader; |
| |
| import org.eclipse.ptp.remotetools.utils.messages.Messages; |
| |
| /** |
| * A temporarily workaround to read lines of text. |
| * In future, will be replaced by an IStreamListener that converts |
| * blocks of bytes to lines. |
| * |
| * @author Daniel Felix Ferber |
| * @since 1.0 |
| * |
| */ |
| public class TextStreamObserver extends Thread { |
| private BufferedReader reader; |
| private boolean killed; |
| private String name; |
| private ILineStreamListener listener; |
| |
| public TextStreamObserver(InputStream input, ILineStreamListener listener, |
| String name) { |
| this.name = name; |
| reader = new BufferedReader(new InputStreamReader(input)); |
| this.listener = listener; |
| setName(name); |
| } |
| |
| public TextStreamObserver(InputStream input, ILineStreamListener listener) { |
| this.name = this.getClass().getName(); |
| reader = new BufferedReader(new InputStreamReader(input)); |
| this.listener = listener; |
| setName(name); |
| } |
| |
| public synchronized void kill() { |
| killed = true; |
| } |
| |
| void log(String string) { |
| // System.err.println(name + ": " + s); |
| } |
| |
| void newLine(String line) { |
| log(Messages.TextStreamObserver_0 + Integer.toString(line.length()) + Messages.TextStreamObserver_1); |
| listener.newLine(line); |
| } |
| |
| void streamClosed() { |
| log(Messages.TextStreamObserver_2); |
| listener.streamClosed(); |
| } |
| |
| void streamError(Exception e) { |
| log(Messages.TextStreamObserver_3 + e.getMessage()); |
| listener.streamError(e); |
| } |
| |
| public void run() { |
| String line; |
| |
| while (!killed) { |
| try { |
| line = reader.readLine(); |
| if (line == null) { |
| streamClosed(); |
| return; |
| } else { |
| newLine(line); |
| } |
| } catch (IOException e) { |
| if (e instanceof EOFException) { |
| streamClosed(); |
| break; |
| } else { |
| streamError(e); |
| break; |
| } |
| } catch (NullPointerException e) { |
| if (killed) { |
| streamClosed(); |
| break; |
| } else { |
| streamError(e); |
| break; |
| } |
| } |
| } |
| } |
| |
| } |