/*
*
* 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.geode.tools.pulse.internal.service;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import org.apache.geode.tools.pulse.internal.controllers.PulseController;
import org.apache.geode.tools.pulse.internal.data.Cluster;
import org.apache.geode.tools.pulse.internal.data.PulseConstants;
import org.apache.geode.tools.pulse.internal.data.Repository;
import org.apache.geode.tools.pulse.internal.util.TimeUtils;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;
import javax.servlet.http.HttpServletRequest;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.text.DecimalFormat;
import java.util.ArrayList;
import java.util.List;
/**
* Class ClusterMemberService
*
* This class contains implementations of getting Cluster Member's details
*
* @since GemFire version 7.5
*/
@Component
// @Service("ClusterMember")
@Service("ClusterMembers")
@Scope("singleton")
public class ClusterMemberService implements PulseService {
private final ObjectMapper mapper = new ObjectMapper();
private final String HEAP_USAGE = "heapUsage";
public ObjectNode execute(final HttpServletRequest request) throws Exception {
// get cluster object
Cluster cluster = Repository.get().getCluster();
// json object to be sent as response
ObjectNode responseJSON = mapper.createObjectNode();
Cluster.Member[] clusterMembersList = cluster.getMembers();
// create members json
ArrayNode memberListJson = mapper.createArrayNode();
for (Cluster.Member clusterMember : clusterMembersList) {
ObjectNode memberJSON = mapper.createObjectNode();
// getting members detail
memberJSON.put("gemfireVersion", clusterMember.getGemfireVersion());
memberJSON.put("memberId", clusterMember.getId());
memberJSON.put("name", clusterMember.getName());
memberJSON.put("host", clusterMember.getHost());
List<String> serverGroups = clusterMember.getServerGroups();
if (serverGroups.size() == 0) {
serverGroups = new ArrayList<>();
serverGroups.add(PulseConstants.DEFAULT_SERVER_GROUP);
}
memberJSON.put("serverGroups", mapper.valueToTree(serverGroups));
List<String> redundancyZones = clusterMember.getRedundancyZones();
if (redundancyZones.size() == 0) {
redundancyZones = new ArrayList<String>();
redundancyZones.add(PulseConstants.DEFAULT_REDUNDANCY_ZONE);
}
memberJSON.put("redundancyZones", mapper.valueToTree(redundancyZones));
long usedHeapSize = cluster.getUsedHeapSize();
long currentHeap = clusterMember.getCurrentHeapSize();
if (usedHeapSize > 0) {
double heapUsage = ((double) currentHeap / (double) usedHeapSize) * 100;
memberJSON.put(this.HEAP_USAGE, truncate(heapUsage, 2));
} else {
memberJSON.put(this.HEAP_USAGE, 0);
}
double currentCPUUsage = clusterMember.getCpuUsage();
double loadAvg = clusterMember.getLoadAverage();
memberJSON.put("cpuUsage", truncate(currentCPUUsage, 2));
memberJSON.put("currentHeapUsage", clusterMember.getCurrentHeapSize());
memberJSON.put("isManager", clusterMember.isManager());
memberJSON.put("uptime", TimeUtils.convertTimeSecondsToHMS(clusterMember.getUptime()));
memberJSON.put("loadAvg", truncate(loadAvg, 2));
memberJSON.put("sockets", clusterMember.getTotalFileDescriptorOpen());
memberJSON.put("threads", clusterMember.getNumThreads());
// Number of member clients
memberJSON.put("clients", clusterMember.getMemberClientsHMap().size());
memberJSON.put("queues", clusterMember.getQueueBacklog());
memberListJson.add(memberJSON);
}
// cluster's Members
responseJSON.put("members", memberListJson);
// Send json response
return responseJSON;
}
private double truncate(double value, int places) {
return new BigDecimal(value).setScale(places, RoundingMode.HALF_UP).doubleValue();
}
}