ZabbixTcpOutputWriterTest.java

/*
 * Copyright (c) 2010-2016 the original author or authors
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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package org.jmxtrans.agent.zabbix;

import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.hasSize;
import static org.junit.Assert.assertThat;

import java.nio.charset.StandardCharsets;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;

import org.hamcrest.Matcher;
import org.jmxtrans.agent.AbstractOutputWriter;
import org.junit.Rule;
import org.junit.Test;

/**
 * ZabbixTcpOutputWriterTest
 * 
 * @author Steve McDuff
 */
public class ZabbixTcpOutputWriterTest
{
    public ZabbixTcpOutputWriterTest()
    {
        super();
    }


    @Rule
    public TcpByteLineServer tcpByteServer = new TcpByteLineServer();

    @Test
    public void reconnectsAfterServerClosesConnection() throws Exception {
        ZabbixTcpOutputWriter zabbixWriter = new ZabbixTcpOutputWriter();
        Map<String, String> config = new HashMap<>();
        config.put(ZabbixOutputWriterCommonSettings.SETTING_HOST, "127.0.0.1");
        config.put(ZabbixOutputWriterCommonSettings.SETTING_PORT, "" + tcpByteServer.getPort());
        config.put(ZabbixOutputWriterCommonSettings.SETTING_SERVER_NAME, "jmxtransagenttest");
        zabbixWriter.postConstruct(config);
        // Write one metric to see it is received
        writeTestMetric(zabbixWriter);
        assertEventuallyReceived(tcpByteServer, hasSize(1));
        writeTestMetric(zabbixWriter);
        // Write one metric and verify that it is received
        writeTestMetric(zabbixWriter);
        assertEventuallyReceived(tcpByteServer, hasSize(greaterThan(1)));
        
        tcpByteServer.stop();
    }
     

    public void testZabbixTrapper() throws Exception {
        ZabbixTcpOutputWriter zabbixWriter = new ZabbixTcpOutputWriter();
        Map<String, String> config = new HashMap<>();
        config.put(ZabbixOutputWriterCommonSettings.SETTING_HOST, "myhost");
        config.put(ZabbixOutputWriterCommonSettings.SETTING_PORT, "10051");
        config.put(ZabbixOutputWriterCommonSettings.SETTING_SERVER_NAME, "jmxtransagenttest");
        zabbixWriter.postConstruct(config);
        // Write one metric to see it is received
        
        for( int i=0;i<100;++i) {
            writeTestMetric(zabbixWriter);
            Thread.sleep(10000);
        }
    }

    public int value=1;
    
    public void switchValue() {
        if( value < 10 ) {
            value += 1;
        }
        else {
            value = 1;
        }
    }

    private void writeTestMetric(AbstractOutputWriter writer) {
        switchValue();
        try {
             writer.writeQueryResult("jmxtransagentinputtest", null, value);
             writer.writeQueryResult("second", null, value+20);
             
             tcpByteServer.readResponse ="ZBXA100000000{\"result\":\"success\"}".getBytes(StandardCharsets.UTF_8);

            writer.postCollect();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public void assertEventuallyReceived(TcpByteLineServer server, Matcher<Collection<? extends Object>> matcher)
            throws Exception {
        for (int i = 0; i < 100; i++) {
            if (matcher.matches(server.getReceivedLines())) {
                return;
            }
            Thread.sleep(10);
        }
        assertThat(server.getReceivedLines(), matcher);
    }

}