| /* |
| * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.testlibrary; |
| |
| import java.io.BufferedInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.OutputStream; |
| import java.io.InputStream; |
| import java.io.IOException; |
| import java.util.HashSet; |
| import java.util.Set; |
| import java.util.concurrent.Future; |
| import java.util.concurrent.FutureTask; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| |
| /** |
| * @deprecated This class is deprecated. Use the one from |
| * {@code <root>/test/lib/share/classes/jdk/test/lib/process} |
| */ |
| @Deprecated |
| public final class StreamPumper implements Runnable { |
| |
| private static final int BUF_SIZE = 256; |
| |
| /** |
| * Pump will be called by the StreamPumper to process the incoming data |
| */ |
| abstract public static class Pump { |
| abstract void register(StreamPumper d); |
| } |
| |
| /** |
| * OutputStream -> Pump adapter |
| */ |
| final public static class StreamPump extends Pump { |
| private final OutputStream out; |
| public StreamPump(OutputStream out) { |
| this.out = out; |
| } |
| |
| @Override |
| void register(StreamPumper sp) { |
| sp.addOutputStream(out); |
| } |
| } |
| |
| /** |
| * Used to process the incoming data line-by-line |
| */ |
| abstract public static class LinePump extends Pump { |
| @Override |
| final void register(StreamPumper sp) { |
| sp.addLineProcessor(this); |
| } |
| |
| abstract protected void processLine(String line); |
| } |
| |
| private final InputStream in; |
| private final Set<OutputStream> outStreams = new HashSet<>(); |
| private final Set<LinePump> linePumps = new HashSet<>(); |
| |
| private final AtomicBoolean processing = new AtomicBoolean(false); |
| private final FutureTask<Void> processingTask = new FutureTask<>(this, null); |
| |
| public StreamPumper(InputStream in) { |
| this.in = in; |
| } |
| |
| /** |
| * Create a StreamPumper that reads from in and writes to out. |
| * |
| * @param in |
| * The stream to read from. |
| * @param out |
| * The stream to write to. |
| */ |
| public StreamPumper(InputStream in, OutputStream out) { |
| this(in); |
| this.addOutputStream(out); |
| } |
| |
| /** |
| * Implements Thread.run(). Continuously read from {@code in} and write to |
| * {@code out} until {@code in} has reached end of stream. Abort on |
| * interruption. Abort on IOExceptions. |
| */ |
| @Override |
| public void run() { |
| try (BufferedInputStream is = new BufferedInputStream(in)) { |
| ByteArrayOutputStream lineBos = new ByteArrayOutputStream(); |
| byte[] buf = new byte[BUF_SIZE]; |
| int len = 0; |
| int linelen = 0; |
| |
| while ((len = is.read(buf)) > 0 && !Thread.interrupted()) { |
| for(OutputStream out : outStreams) { |
| out.write(buf, 0, len); |
| } |
| if (!linePumps.isEmpty()) { |
| int i = 0; |
| int lastcrlf = -1; |
| while (i < len) { |
| if (buf[i] == '\n' || buf[i] == '\r') { |
| int bufLinelen = i - lastcrlf - 1; |
| if (bufLinelen > 0) { |
| lineBos.write(buf, lastcrlf + 1, bufLinelen); |
| } |
| linelen += bufLinelen; |
| |
| if (linelen > 0) { |
| lineBos.flush(); |
| final String line = lineBos.toString(); |
| linePumps.stream().forEach((lp) -> { |
| lp.processLine(line); |
| }); |
| lineBos.reset(); |
| linelen = 0; |
| } |
| lastcrlf = i; |
| } |
| |
| i++; |
| } |
| if (lastcrlf == -1) { |
| lineBos.write(buf, 0, len); |
| linelen += len; |
| } else if (lastcrlf < len - 1) { |
| lineBos.write(buf, lastcrlf + 1, len - lastcrlf - 1); |
| linelen += len - lastcrlf - 1; |
| } |
| } |
| } |
| |
| } catch (IOException e) { |
| e.printStackTrace(); |
| } finally { |
| for(OutputStream out : outStreams) { |
| try { |
| out.flush(); |
| } catch (IOException e) {} |
| } |
| try { |
| in.close(); |
| } catch (IOException e) {} |
| } |
| } |
| |
| final void addOutputStream(OutputStream out) { |
| outStreams.add(out); |
| } |
| |
| final void addLineProcessor(LinePump lp) { |
| linePumps.add(lp); |
| } |
| |
| final public StreamPumper addPump(Pump ... pump) { |
| if (processing.get()) { |
| throw new IllegalStateException("Can not modify pumper while " + |
| "processing is in progress"); |
| } |
| for(Pump p : pump) { |
| p.register(this); |
| } |
| return this; |
| } |
| |
| final public Future<Void> process() { |
| if (!processing.compareAndSet(false, true)) { |
| throw new IllegalStateException("Can not re-run the processing"); |
| } |
| Thread t = new Thread(new Runnable() { |
| @Override |
| public void run() { |
| processingTask.run(); |
| } |
| }); |
| t.setDaemon(true); |
| t.start(); |
| |
| return processingTask; |
| } |
| } |