| /* |
| * Copyright (C) 2009, 2013 Google Inc. |
| * and other copyright owners as documented in the project's IP log. |
| * |
| * This program and the accompanying materials are made available |
| * under the terms of the Eclipse Distribution License v1.0 which |
| * accompanies this distribution, is reproduced below, and is |
| * available at http://www.eclipse.org/org/documents/edl-v10.php |
| * |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * - Neither the name of the Eclipse Foundation, Inc. nor the |
| * names of its contributors may be used to endorse or promote |
| * products derived from this software without specific prior |
| * written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND |
| * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package org.eclipse.jgit.util.io; |
| |
| import java.io.FilterInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.InterruptedIOException; |
| import java.text.MessageFormat; |
| |
| import org.eclipse.jgit.internal.JGitText; |
| |
| /** InputStream with a configurable timeout. */ |
| public class TimeoutInputStream extends FilterInputStream { |
| private final InterruptTimer myTimer; |
| |
| private int timeout; |
| |
| /** |
| * Wrap an input stream with a timeout on all read operations. |
| * |
| * @param src |
| * base input stream (to read from). The stream must be |
| * interruptible (most socket streams are). |
| * @param timer |
| * timer to manage the timeouts during reads. |
| */ |
| public TimeoutInputStream(final InputStream src, |
| final InterruptTimer timer) { |
| super(src); |
| myTimer = timer; |
| } |
| |
| /** @return number of milliseconds before aborting a read. */ |
| public int getTimeout() { |
| return timeout; |
| } |
| |
| /** |
| * @param millis |
| * number of milliseconds before aborting a read. Must be > 0. |
| */ |
| public void setTimeout(final int millis) { |
| if (millis < 0) |
| throw new IllegalArgumentException(MessageFormat.format( |
| JGitText.get().invalidTimeout, Integer.valueOf(millis))); |
| timeout = millis; |
| } |
| |
| @Override |
| public int read() throws IOException { |
| try { |
| beginRead(); |
| return super.read(); |
| } catch (InterruptedIOException e) { |
| throw readTimedOut(); |
| } finally { |
| endRead(); |
| } |
| } |
| |
| @Override |
| public int read(byte[] buf) throws IOException { |
| return read(buf, 0, buf.length); |
| } |
| |
| @Override |
| public int read(byte[] buf, int off, int cnt) throws IOException { |
| try { |
| beginRead(); |
| return super.read(buf, off, cnt); |
| } catch (InterruptedIOException e) { |
| throw readTimedOut(); |
| } finally { |
| endRead(); |
| } |
| } |
| |
| @Override |
| public long skip(long cnt) throws IOException { |
| try { |
| beginRead(); |
| return super.skip(cnt); |
| } catch (InterruptedIOException e) { |
| throw readTimedOut(); |
| } finally { |
| endRead(); |
| } |
| } |
| |
| private void beginRead() { |
| myTimer.begin(timeout); |
| } |
| |
| private void endRead() { |
| myTimer.end(); |
| } |
| |
| private InterruptedIOException readTimedOut() { |
| return new InterruptedIOException(MessageFormat.format( |
| JGitText.get().readTimedOut, Integer.valueOf(timeout))); |
| } |
| } |