| /* |
| * Copyright (C) 2009, 2013 Google Inc. and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| 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; |
| } |
| |
| /** |
| * Get number of milliseconds before aborting a read. |
| * |
| * @return number of milliseconds before aborting a read. |
| */ |
| public int getTimeout() { |
| return timeout; |
| } |
| |
| /** |
| * Set number of milliseconds before aborting a read. |
| * |
| * @param millis |
| * number of milliseconds before aborting a read. Must be > 0. |
| */ |
| public void setTimeout(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(e); |
| } 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(e); |
| } finally { |
| endRead(); |
| } |
| } |
| |
| @Override |
| public long skip(long cnt) throws IOException { |
| try { |
| beginRead(); |
| return super.skip(cnt); |
| } catch (InterruptedIOException e) { |
| throw readTimedOut(e); |
| } finally { |
| endRead(); |
| } |
| } |
| |
| private void beginRead() { |
| myTimer.begin(timeout); |
| } |
| |
| private void endRead() { |
| myTimer.end(); |
| } |
| |
| private InterruptedIOException readTimedOut(InterruptedIOException e) { |
| InterruptedIOException interrupted = new InterruptedIOException( |
| MessageFormat.format(JGitText.get().readTimedOut, |
| Integer.valueOf(timeout))); |
| interrupted.initCause(e); |
| return interrupted; |
| } |
| } |