| /* |
| * |
| * 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.apache.qpid.proton.example.reactor; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.ByteBuffer; |
| import java.nio.channels.Pipe; |
| import java.nio.channels.Pipe.SinkChannel; |
| import java.nio.channels.Pipe.SourceChannel; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| public class EchoInputStreamWrapper extends Thread { |
| |
| private final InputStream in; |
| private final SinkChannel out; |
| private final byte[] bufferBytes = new byte[1024]; |
| private final ByteBuffer buffer = ByteBuffer.wrap(bufferBytes); |
| private final AtomicInteger idCounter = new AtomicInteger(); |
| |
| private EchoInputStreamWrapper(InputStream in, SinkChannel out) { |
| this.in = in; |
| this.out = out; |
| setName(getClass().getName() + "-" + idCounter.incrementAndGet()); |
| setDaemon(true); |
| } |
| |
| @Override |
| public void run() { |
| try { |
| while(true) { |
| int amount = in.read(bufferBytes); |
| if (amount < 0) break; |
| buffer.position(0); |
| buffer.limit(amount); |
| out.write(buffer); |
| } |
| } catch(IOException ioException) { |
| ioException.printStackTrace(); |
| } finally { |
| try { |
| out.close(); |
| } catch(IOException ioException) { |
| ioException.printStackTrace(); |
| } |
| } |
| } |
| |
| public static SourceChannel wrap(InputStream in) throws IOException { |
| Pipe pipe = Pipe.open(); |
| new EchoInputStreamWrapper(in, pipe.sink()).start(); |
| SourceChannel result = pipe.source(); |
| result.configureBlocking(false); |
| return result; |
| } |
| |
| } |