/*
* Copyright 2013-2014 the original author or authors.
*
* Licensed 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.springframework.xd.test.fixtures;
import java.io.IOException;
import java.net.Socket;
import org.springframework.util.Assert;
/**
* A test fixture that allows testing of the syslog tcp source module.
*
* @author Glenn Renfro
*/
public class SyslogTcpSource extends AbstractModuleFixture<SyslogTcpSource> {
public final static int DEFAULT_PORT = 5140;
public final static String DEFAULT_HOST = "localhost";
private int port;
private String host;
/**
* Initializes a SyslogTcpSource fixture.
*
* @param host the host that tcp data will be sent.
* @param port the port that tcp data will be sent.
*/
public SyslogTcpSource(String host, int port) {
Assert.hasText(host, "host must not be empty nor null");
this.host = host;
this.port = port;
}
/**
* Returns a SyslogTcpSource fixture instance that is initialized with default port and host.
*
* @return a SyslogTcpSource instance.
*/
public static SyslogTcpSource withDefaults() {
return new SyslogTcpSource(DEFAULT_HOST, DEFAULT_PORT);
}
/**
* Returns a SyslogTcpSource fixture instance that is initialized with default port and the
* provided host parameter
*
* @param host The host that tcp data will be sent.
* @return a SyslogTcpSource instance
*/
public static SyslogTcpSource withDefaults(String host) {
Assert.hasText(host, "host must not be empty nor null");
return new SyslogTcpSource(host, DEFAULT_PORT);
}
/**
* Renders the DSL for this fixture.
*/
@Override
protected String toDSL() {
return String.format("syslog-tcp --port=%s ", port);
}
/**
* Sends TCP traffic to a syslog source host and port.
*
* @param bytes the data to be sent.
*/
public void sendBytes(byte[] bytes) {
Socket socket = null;
try {
socket = new Socket(host, port);
socket.getOutputStream().write(bytes);
socket.close();
}
catch (IOException ioe) {
throw new IllegalStateException(ioe.getMessage(), ioe);
}
finally {
try {
if (socket != null) {
socket.close();
}
}
catch (IOException ioe) {
}
}
}
}