com.pivotal.gemfire.tools.pulse.internal.service.ClusterMemberService.java Source code

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Here is the source code for com.pivotal.gemfire.tools.pulse.internal.service.ClusterMemberService.java

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/*
 * Copyright (c) 2010-2015 Pivotal Software, Inc. All rights reserved.
 *
 * 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. See accompanying
 * LICENSE file.
 */

package com.pivotal.gemfire.tools.pulse.internal.service;

import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.json.JSONException;
import org.json.JSONObject;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import com.pivotal.gemfire.tools.pulse.internal.controllers.PulseController;
import com.pivotal.gemfire.tools.pulse.internal.data.Cluster;
import com.pivotal.gemfire.tools.pulse.internal.data.PulseConstants;
import com.pivotal.gemfire.tools.pulse.internal.data.Repository;
import com.pivotal.gemfire.tools.pulse.internal.util.TimeUtils;

/**
 * Class ClusterMemberService
 * 
 * This class contains implementations of getting Cluster Member's details
 * 
 * @since version 7.5
 */
@Component
// @Service("ClusterMember")
@Service("ClusterMembers")
@Scope("singleton")
public class ClusterMemberService implements PulseService {

    private final String HEAP_USAGE = "heapUsage";

    public JSONObject execute(final HttpServletRequest request) throws Exception {

        // get cluster object
        Cluster cluster = Repository.get().getCluster();

        // json object to be sent as response
        JSONObject responseJSON = new JSONObject();

        Cluster.Member[] clusterMembersList = cluster.getMembers();

        // create members json
        List<JSONObject> memberListJson = new ArrayList<JSONObject>();
        try {
            for (Cluster.Member clusterMember : clusterMembersList) {
                JSONObject memberJSON = new JSONObject();
                // getting members detail
                memberJSON.put("memberId", clusterMember.getId());
                memberJSON.put("name", clusterMember.getName());
                memberJSON.put("host", clusterMember.getHost());

                DecimalFormat df2 = new DecimalFormat(PulseConstants.DECIMAL_FORMAT_PATTERN);

                long usedHeapSize = cluster.getUsedHeapSize();
                long currentHeap = clusterMember.getCurrentHeapSize();
                if (usedHeapSize > 0) {
                    float heapUsage = ((float) currentHeap / (float) usedHeapSize) * 100;
                    memberJSON.put(this.HEAP_USAGE, Double.valueOf(df2.format(heapUsage)));
                } else {
                    memberJSON.put(this.HEAP_USAGE, 0);
                }
                Float currentCPUUsage = clusterMember.getCpuUsage();

                memberJSON.put("cpuUsage", Float.valueOf(df2.format(currentCPUUsage)));
                memberJSON.put("currentHeapUsage", clusterMember.getCurrentHeapSize());
                memberJSON.put("isManager", clusterMember.isManager());
                memberJSON.put("uptime", TimeUtils.convertTimeSecondsToHMS(clusterMember.getUptime()));
                memberJSON.put("loadAvg", clusterMember.getLoadAverage());
                memberJSON.put("sockets", clusterMember.getTotalFileDescriptorOpen());
                memberJSON.put("openFDs", clusterMember.getTotalFileDescriptorOpen());
                memberJSON.put("threads", clusterMember.getNumThreads());

                // Number of member clients
                if (PulseController.getPulseProductSupport()
                        .equalsIgnoreCase(PulseConstants.PRODUCT_NAME_GEMFIREXD)) {
                    memberJSON.put("clients", clusterMember.getNumGemFireXDClients());
                } else {
                    memberJSON.put("clients", clusterMember.getMemberClientsHMap().size());
                }
                memberJSON.put("queues", clusterMember.getQueueBacklog());

                memberListJson.add(memberJSON);
            }
            // clucter's Members
            responseJSON.put("members", memberListJson);
            // Send json response
            return responseJSON;
        } catch (JSONException e) {
            throw new Exception(e);
        }
    }
}