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/*
* 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.nifi.processors.standard.relp.handler;
import org.apache.nifi.logging.ComponentLog;
import org.apache.nifi.processor.util.listen.dispatcher.AsyncChannelDispatcher;
import org.apache.nifi.processor.util.listen.event.EventFactory;
import org.apache.nifi.processor.util.listen.response.ChannelResponder;
import org.apache.nifi.processor.util.listen.response.ChannelResponse;
import org.apache.nifi.processors.standard.relp.event.RELPEvent;
import org.apache.nifi.processors.standard.relp.event.RELPEventFactory;
import org.apache.nifi.processors.standard.relp.frame.RELPFrame;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import java.io.IOException;
import java.nio.channels.SelectionKey;
import java.nio.channels.SocketChannel;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;
public class TestRELPFrameHandler {
private Charset charset;
private EventFactory<RELPEvent> eventFactory;
private BlockingQueue<RELPEvent> events;
private SelectionKey key;
private AsyncChannelDispatcher dispatcher;
private ComponentLog logger;
private RELPFrameHandler<RELPEvent> frameHandler;
@Before
public void setup() {
this.charset = StandardCharsets.UTF_8;
this.eventFactory = new RELPEventFactory();
this.events = new LinkedBlockingQueue<>();
this.key = Mockito.mock(SelectionKey.class);
this.dispatcher = Mockito.mock(AsyncChannelDispatcher.class);
this.logger = Mockito.mock(ComponentLog.class);
this.frameHandler = new RELPFrameHandler<>(key, charset, eventFactory, events, dispatcher, logger);
}
@Test
public void testOpen() throws IOException, InterruptedException {
final String offer1 = "relp_version=0";
final String offer2 = "relp_software=librelp,1.2.7,http://librelp.adiscon.com";
final String offer3 = "commands=syslog";
final String data = offer1 + "\n" + offer2 + "\n" + offer3;
final RELPFrame openFrame = new RELPFrame.Builder()
.txnr(1).command("open")
.dataLength(data.length())
.data(data.getBytes(charset))
.build();
final String sender = "sender1";
final CapturingChannelResponder responder = new CapturingChannelResponder();
// call the handler and verify respond() was called once with once response
frameHandler.handle(openFrame, responder, sender);
Assert.assertEquals(1, responder.responded);
Assert.assertEquals(1, responder.responses.size());
// verify the response sent back the offers that were received
final ChannelResponse response = responder.responses.get(0);
final String responseData = new String(response.toByteArray(), charset);
Assert.assertTrue(responseData.contains(offer1));
Assert.assertTrue(responseData.contains(offer2));
Assert.assertTrue(responseData.contains(offer3));
}
@Test
public void testClose() throws IOException, InterruptedException {
final RELPFrame openFrame = new RELPFrame.Builder()
.txnr(1).command("close")
.dataLength(0)
.data(new byte[0])
.build();
final String sender = "sender1";
final CapturingChannelResponder responder = new CapturingChannelResponder();
// call the handler and verify respond() was called once with once response
frameHandler.handle(openFrame, responder, sender);
Assert.assertEquals(1, responder.responded);
Assert.assertEquals(1, responder.responses.size());
// verify the response sent back the offers that were received
final ChannelResponse response = responder.responses.get(0);
final String responseData = new String(response.toByteArray(), charset);
Assert.assertTrue(responseData.contains("200 OK"));
}
@Test
public void testCommand() throws IOException, InterruptedException {
final String data = "this is a syslog message";
final RELPFrame openFrame = new RELPFrame.Builder()
.txnr(1).command("syslog")
.dataLength(data.length())
.data(data.getBytes(charset))
.build();
final String sender = "sender1";
final CapturingChannelResponder responder = new CapturingChannelResponder();
// call the handler and verify respond() was called once with once response
frameHandler.handle(openFrame, responder, sender);
Assert.assertEquals(0, responder.responded);
Assert.assertEquals(0, responder.responses.size());
Assert.assertEquals(1, events.size());
final RELPEvent event = events.poll();
Assert.assertEquals(data, new String(event.getData(), charset));
}
private static class CapturingChannelResponder implements ChannelResponder<SocketChannel> {
int responded;
List<ChannelResponse> responses = new ArrayList<>();
@Override
public SocketChannel getChannel() {
return Mockito.mock(SocketChannel.class);
}
@Override
public List<ChannelResponse> getResponses() {
return responses;
}
@Override
public void addResponse(ChannelResponse response) {
responses.add(response);
}
@Override
public void respond() throws IOException {
responded++;
}
}
}