| // 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 streamer.debug; |
| |
| import java.util.Arrays; |
| import java.util.Set; |
| |
| import streamer.BaseElement; |
| import streamer.ByteBuffer; |
| import streamer.Direction; |
| import streamer.Element; |
| import streamer.Link; |
| import streamer.SyncLink; |
| |
| /** |
| * Compare incoming packets with expected packets. |
| */ |
| public class MockSink extends BaseElement { |
| |
| protected ByteBuffer bufs[]; |
| protected Dumper dumper; |
| |
| public MockSink(String id) { |
| super(id); |
| } |
| |
| public MockSink(String id, ByteBuffer bufs[]) { |
| super(id); |
| this.bufs = bufs; |
| } |
| |
| public MockSink(String id, ByteBuffer bufs[], Dumper dumper) { |
| super(id); |
| this.bufs = bufs; |
| this.dumper = dumper; |
| } |
| |
| @Override |
| public void handleData(ByteBuffer buf, Link link) { |
| if (verbose) |
| System.out.println("[" + this + "] INFO: Received buf #" + (packetNumber) + " " + buf + "."); |
| |
| if (buf == null) |
| return; |
| |
| if (packetNumber >= bufs.length) |
| throw new AssertionError("[" + this + "] Incoming buffer #" + packetNumber + " is not expected. Number of expected buffers: " + bufs.length |
| + ", unexpected buffer: " + buf + "."); |
| |
| // Compare incoming buffer with expected buffer |
| ByteBuffer expectedBuf = bufs[packetNumber]; |
| if (!Arrays.equals(expectedBuf.toByteArray(), buf.toByteArray())) { |
| dump(buf, expectedBuf); |
| throw new AssertionError("[" + this + "] Incoming buffer #" + packetNumber + " is not equal to expected buffer.\n Actual bufer: " + buf |
| + ",\n expected buffer: " + expectedBuf + "."); |
| } |
| |
| // If expected buffer has metadata, then compare it too |
| Set<String> metadataKeys = expectedBuf.getMetadataKeys(); |
| if (metadataKeys.size() > 0) { |
| for (String key : metadataKeys) { |
| Object expectedValue = expectedBuf.getMetadata(key); |
| Object actualValue = buf.getMetadata(key); |
| if (actualValue == null) |
| throw new AssertionError("[" + this + "] Incoming buffer #" + packetNumber + " is not equal to expected buffer in metadata for key \"" + key |
| + "\".\n Actual metadata value: " + ",\n expected value: \"" + expectedValue + "\"."); |
| |
| if (!expectedValue.equals(actualValue)) |
| throw new AssertionError("[" + this + "] Incoming buffer #" + packetNumber + " is not equal to expected buffer in metadata for key \"" + key |
| + "\".\n Actual metadata value: \"" + actualValue + "\",\n expected value: \"" + expectedValue + "\"."); |
| } |
| } |
| |
| if (verbose) |
| System.out.println("[" + this + "] INFO: buffers are equal."); |
| |
| // Use packetNumber variable to count incoming packets |
| packetNumber++; |
| |
| buf.unref(); |
| } |
| |
| private void dump(ByteBuffer actualData, ByteBuffer expectedData) { |
| if (dumper != null) { |
| System.out.println("[" + this + "] INFO: Actual data:"); |
| dumper.dump(actualData); |
| System.out.println("[" + this + "] INFO: Expected data:"); |
| dumper.dump(expectedData); |
| } |
| } |
| |
| @Override |
| protected void onClose() { |
| super.onClose(); |
| |
| if (packetNumber != bufs.length) |
| throw new AssertionError("[" + this + "] Number of expected buffers: " + bufs.length + ", number of actual buffers: " + packetNumber + "."); |
| } |
| |
| @Override |
| public String toString() { |
| return "MockSink(" + id + ")"; |
| } |
| |
| /** |
| * Example. |
| */ |
| public static void main(String args[]) { |
| |
| Element mockSource = new MockSource("source") { |
| { |
| bufs = new ByteBuffer[] {new ByteBuffer(new byte[] {1, 1, 2, 3, 4, 5}), new ByteBuffer(new byte[] {2, 1, 2, 3, 4}), |
| new ByteBuffer(new byte[] {3, 1, 2, 3}), new ByteBuffer(new byte[] {4, 1, 2}), new ByteBuffer(new byte[] {5, 1})}; |
| verbose = true; |
| delay = 100; |
| numBuffers = bufs.length; |
| } |
| }; |
| |
| Element mockSink = new MockSink("sink") { |
| { |
| bufs = new ByteBuffer[] {new ByteBuffer(new byte[] {1, 1, 2, 3, 4, 5}), new ByteBuffer(new byte[] {2, 1, 2, 3, 4}), |
| new ByteBuffer(new byte[] {3, 1, 2, 3}), new ByteBuffer(new byte[] {4, 1, 2}), new ByteBuffer(new byte[] {5, 1})}; |
| verbose = true; |
| } |
| }; |
| |
| Link link = new SyncLink() { |
| { |
| verbose = true; |
| } |
| }; |
| |
| mockSource.setLink(STDOUT, link, Direction.OUT); |
| mockSink.setLink(STDIN, link, Direction.IN); |
| |
| link.run(); |
| } |
| |
| } |