ActiveMQ example source code file (CpuReportPlugin.java)

This example ActiveMQ source code file (CpuReportPlugin.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - ActiveMQ tags/keywords

arraylist, arraylist, key_block_sent, list, list, map, map, name_block_sent, name_user_time, string, string, stringtokenizer, systemtime, unrecognized, util

The ActiveMQ CpuReportPlugin.java source code

/**
 * 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.activemq.tool.reports.plugins;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.StringTokenizer;

import org.apache.activemq.tool.reports.PerformanceStatisticsUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class CpuReportPlugin implements ReportPlugin {

    public static final String NAME_IGNORE_LIST = "$index$timeUnit$r$b$w$swpd$inact$active$free$buff$cache$si$so$in$";
    public static final String NAME_BLOCK_RECV = "bi";
    public static final String NAME_BLOCK_SENT = "bo";
    public static final String NAME_CTX_SWITCH = "cs";
    public static final String NAME_USER_TIME  = "us";
    public static final String NAME_SYS_TIME   = "sy";
    public static final String NAME_IDLE_TIME  = "id";
    public static final String NAME_WAIT_TIME  = "wa";

    public static final String KEY_BLOCK_RECV = "BlocksReceived";
    public static final String KEY_BLOCK_SENT = "BlocksSent";
    public static final String KEY_CTX_SWITCH = "ContextSwitches";
    public static final String KEY_USER_TIME  = "UserTime";
    public static final String KEY_SYS_TIME   = "SystemTime";
    public static final String KEY_IDLE_TIME  = "IdleTime";
    public static final String KEY_WAIT_TIME  = "WaitingTime";

    public static final String KEY_AVE_BLOCK_RECV = "AveBlocksReceived";
    public static final String KEY_AVE_BLOCK_SENT = "AveBlocksSent";
    public static final String KEY_AVE_CTX_SWITCH = "AveContextSwitches";
    public static final String KEY_AVE_USER_TIME  = "AveUserTime";
    public static final String KEY_AVE_SYS_TIME   = "AveSystemTime";
    public static final String KEY_AVE_IDLE_TIME  = "AveIdleTime";
    public static final String KEY_AVE_WAIT_TIME  = "AveWaitingTime";

    private static final Logger LOG = LoggerFactory.getLogger(CpuReportPlugin.class);

    protected List<Long> blockRecv = new ArrayList();
    protected List<Long> blockSent = new ArrayList();
    protected List<Long> ctxSwitch = new ArrayList();
    protected List<Long> userTime  = new ArrayList();
    protected List<Long> sysTime   = new ArrayList();
    protected List<Long> idleTime  = new ArrayList();
    protected List<Long> waitTime  = new ArrayList();

    public void handleCsvData(String csvData) {
        StringTokenizer tokenizer = new StringTokenizer(csvData, ",");
        String data;
        String key;
        String val;
        while (tokenizer.hasMoreTokens()) {
            data = tokenizer.nextToken();
            key  = data.substring(0, data.indexOf("="));
            val  = data.substring(data.indexOf("=") + 1);

            addToCpuList(key, val);
        }
    }

    public Map<String, String> getSummary() {
        long val;

        Map<String, String> summary = new HashMap();

        if (blockRecv.size() > 0) {
            val = PerformanceStatisticsUtil.getSum(blockRecv);
            summary.put(KEY_BLOCK_RECV, String.valueOf(val));
            summary.put(KEY_AVE_BLOCK_RECV, String.valueOf((double)val / (double)blockRecv.size()));
        }

        if (blockSent.size() > 0) {
            val = PerformanceStatisticsUtil.getSum(blockSent);
            summary.put(KEY_BLOCK_SENT, String.valueOf(val));
            summary.put(KEY_AVE_BLOCK_SENT, String.valueOf((double)val / (double)blockSent.size()));
        }

        if (ctxSwitch.size() > 0) {
            val = PerformanceStatisticsUtil.getSum(ctxSwitch);
            summary.put(KEY_CTX_SWITCH, String.valueOf(val));
            summary.put(KEY_AVE_CTX_SWITCH, String.valueOf((double)val / (double)ctxSwitch.size()));
        }

        if (userTime.size() > 0) {
            val = PerformanceStatisticsUtil.getSum(userTime);
            summary.put(KEY_USER_TIME, String.valueOf(val));
            summary.put(KEY_AVE_USER_TIME, String.valueOf((double)val / (double)userTime.size()));
        }

        if (sysTime.size() > 0) {
            val = PerformanceStatisticsUtil.getSum(sysTime);
            summary.put(KEY_SYS_TIME, String.valueOf(val));
            summary.put(KEY_AVE_SYS_TIME, String.valueOf((double)val / (double)sysTime.size()));
        }

        if (idleTime.size() > 0) {
            val = PerformanceStatisticsUtil.getSum(idleTime);
            summary.put(KEY_IDLE_TIME, String.valueOf(val));
            summary.put(KEY_AVE_IDLE_TIME, String.valueOf((double)val / (double)idleTime.size()));
        }

        if (waitTime.size() > 0) {
            val = PerformanceStatisticsUtil.getSum(waitTime);
            summary.put(KEY_WAIT_TIME, String.valueOf(val));
            summary.put(KEY_AVE_WAIT_TIME, String.valueOf((double)val / (double)waitTime.size()));
        }

        if (summary.size() > 0) {
            return summary;
        } else {
            return null;
        }
    }

    protected void addToCpuList(String key, String val) {
        if (key.equals(NAME_BLOCK_RECV)) {
            blockRecv.add(Long.valueOf(val));
        } else if (key.equals(NAME_BLOCK_SENT)) {
            blockSent.add(Long.valueOf(val));
        } else if (key.equals(NAME_CTX_SWITCH)) {
            ctxSwitch.add(Long.valueOf(val));
        } else if (key.equals(NAME_USER_TIME)) {
            userTime.add(Long.valueOf(val));
        } else if (key.equals(NAME_SYS_TIME)) {
            sysTime.add(Long.valueOf(val));
        } else if (key.equals(NAME_IDLE_TIME)) {
            idleTime.add(Long.valueOf(val));
        } else if (key.equals(NAME_WAIT_TIME)) {
            waitTime.add(Long.valueOf(val));
        } else if (NAME_IGNORE_LIST.indexOf("$" + key + "$") != -1) {
            // Ignore key
        } else {
            LOG.warn("Unrecognized CPU data. " + key + "=" + val);
        }
    }
}