| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.netbeans.modules.docker; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.nio.charset.Charset; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| /** |
| * |
| * @author Petr Hejl |
| */ |
| public class MuxedStreamResult implements StreamResult { |
| |
| private static final Logger LOGGER = Logger.getLogger(MuxedStreamResult.class.getName()); |
| |
| private final Endpoint s; |
| |
| private final Charset charset; |
| |
| private final OutputStream outputStream; |
| |
| private final Demuxer demultiplexer; |
| |
| private final InputStream stdOut; |
| |
| private final InputStream stdErr; |
| |
| private StreamItem last = StreamItem.EMPTY; |
| |
| public MuxedStreamResult(Endpoint s, Charset charset, InputStream is) throws IOException { |
| this.s = s; |
| this.charset = charset; |
| this.outputStream = s.getOutputStream(); |
| this.demultiplexer = new Demuxer(is == null ? s.getInputStream() : is); |
| this.stdOut = new ResultInputStream(false); |
| this.stdErr = new ResultInputStream(true); |
| } |
| |
| @Override |
| public OutputStream getStdIn() { |
| return outputStream; |
| } |
| |
| @Override |
| public InputStream getStdOut() { |
| return stdOut; |
| } |
| |
| @Override |
| public InputStream getStdErr() { |
| return stdErr; |
| } |
| |
| @Override |
| public boolean hasTty() { |
| return false; |
| } |
| |
| @Override |
| public Charset getCharset() { |
| return charset; |
| } |
| |
| @Override |
| public void close() { |
| try { |
| s.close(); |
| } catch (IOException ex) { |
| LOGGER.log(Level.FINE, null, ex); |
| } |
| } |
| |
| private class ResultInputStream extends InputStream { |
| |
| private final boolean error; |
| |
| public ResultInputStream(boolean error) { |
| this.error = error; |
| } |
| |
| @Override |
| public int read(byte[] b, int off, int len) { |
| synchronized (MuxedStreamResult.this) { |
| int size = fetchData(); |
| if (size <= 0) { |
| return size; |
| } |
| |
| int limit = Math.min(len, last.getData().remaining()); |
| last.getData().get(b, off, limit); |
| return limit; |
| } |
| } |
| |
| @Override |
| public int read() { |
| synchronized (MuxedStreamResult.this) { |
| int size = fetchData(); |
| if (size <= 0) { |
| return size; |
| } |
| |
| return last.getData().get(); |
| } |
| } |
| |
| private int fetchData() { |
| synchronized (MuxedStreamResult.this) { |
| try { |
| if (last == null) { |
| return -1; |
| } |
| while (!last.getData().hasRemaining()) { |
| last = demultiplexer.fetch(); |
| if (last == null) { |
| return -1; |
| } |
| } |
| } finally { |
| MuxedStreamResult.this.notifyAll(); |
| } |
| |
| try { |
| while (last != null && last.isError() != error) { |
| MuxedStreamResult.this.wait(); |
| } |
| } catch (InterruptedException ex) { |
| Thread.currentThread().interrupt(); |
| } |
| if (last == null) { |
| return -1; |
| } |
| return last.getData().remaining(); |
| } |
| } |
| } |
| } |