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- /*
- * Copyright (C) 2009, 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.IOException;
- import java.io.InterruptedIOException;
- import java.io.OutputStream;
-
- /** OutputStream with a configurable timeout. */
- public class TimeoutOutputStream extends OutputStream {
- private final OutputStream dst;
-
- private final InterruptTimer myTimer;
-
- private int timeout;
-
- /**
- * Wrap an output stream with a timeout on all write operations.
- *
- * @param destination
- * base input stream (to write to). The stream must be
- * interruptible (most socket streams are).
- * @param timer
- * timer to manage the timeouts during writes.
- */
- public TimeoutOutputStream(final OutputStream destination,
- final InterruptTimer timer) {
- dst = destination;
- myTimer = timer;
- }
-
- /** @return number of milliseconds before aborting a write. */
- public int getTimeout() {
- return timeout;
- }
-
- /**
- * @param millis
- * number of milliseconds before aborting a write. Must be > 0.
- */
- public void setTimeout(final int millis) {
- if (millis < 0)
- throw new IllegalArgumentException("Invalid timeout: " + millis);
- timeout = millis;
- }
-
- @Override
- public void write(int b) throws IOException {
- try {
- beginWrite();
- dst.write(b);
- } catch (InterruptedIOException e) {
- throw writeTimedOut();
- } finally {
- endWrite();
- }
- }
-
- @Override
- public void write(byte[] buf) throws IOException {
- write(buf, 0, buf.length);
- }
-
- @Override
- public void write(byte[] buf, int off, int len) throws IOException {
- try {
- beginWrite();
- dst.write(buf, off, len);
- } catch (InterruptedIOException e) {
- throw writeTimedOut();
- } finally {
- endWrite();
- }
- }
-
- @Override
- public void flush() throws IOException {
- try {
- beginWrite();
- dst.flush();
- } catch (InterruptedIOException e) {
- throw writeTimedOut();
- } finally {
- endWrite();
- }
- }
-
- @Override
- public void close() throws IOException {
- try {
- beginWrite();
- dst.close();
- } catch (InterruptedIOException e) {
- throw writeTimedOut();
- } finally {
- endWrite();
- }
- }
-
- private void beginWrite() {
- myTimer.begin(timeout);
- }
-
- private void endWrite() {
- myTimer.end();
- }
-
- private static InterruptedIOException writeTimedOut() {
- return new InterruptedIOException("Write timed out");
- }
- }
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