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

Introduction

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

Source

/*
 * 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 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.data.Cluster;
import com.pivotal.gemfire.tools.pulse.internal.data.PulseConstants;
import com.pivotal.gemfire.tools.pulse.internal.data.Repository;

/**
 * Class ClusterDetailsService
 * 
 * This service class has implementation for providing cluster's basic
 * statistical data.
 * 
 * @since version 7.5
 */
@Component
@Service("ClusterDetails")
@Scope("singleton")
public class ClusterDetailsService implements PulseService {

    public JSONObject execute(final HttpServletRequest request) throws Exception {

        String userName = request.getUserPrincipal().getName();

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

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

        Cluster.Alert[] alertsList = cluster.getAlertsList();
        int severeAlertCount = 0;
        int errorAlertCount = 0;
        int warningAlertCount = 0;
        int infoAlertCount = 0;

        for (Cluster.Alert alertObj : alertsList) {
            if (alertObj.getSeverity() == Cluster.Alert.SEVERE) {
                severeAlertCount++;
            } else if (alertObj.getSeverity() == Cluster.Alert.ERROR) {
                errorAlertCount++;
            } else if (alertObj.getSeverity() == Cluster.Alert.WARNING) {
                warningAlertCount++;
            } else {
                infoAlertCount++;
            }
        }
        try {
            // getting basic details of Cluster
            responseJSON.put("clusterName", cluster.getServerName());
            responseJSON.put("severeAlertCount", severeAlertCount);
            responseJSON.put("errorAlertCount", errorAlertCount);
            responseJSON.put("warningAlertCount", warningAlertCount);
            responseJSON.put("infoAlertCount", infoAlertCount);

            responseJSON.put("totalMembers", cluster.getMemberCount());
            responseJSON.put("servers", cluster.getServerCount());
            responseJSON.put("clients", cluster.getClientConnectionCount());
            responseJSON.put("locators", cluster.getLocatorCount());
            responseJSON.put("totalRegions", cluster.getTotalRegionCount());
            Long heapSize = cluster.getTotalHeapSize();

            DecimalFormat df2 = new DecimalFormat(PulseConstants.DECIMAL_FORMAT_PATTERN);
            Double heapS = heapSize.doubleValue() / 1024;
            responseJSON.put("totalHeap", Double.valueOf(df2.format(heapS)));
            responseJSON.put("functions", cluster.getRunningFunctionCount());
            responseJSON.put("uniqueCQs", cluster.getRegisteredCQCount());
            responseJSON.put("subscriptions", cluster.getSubscriptionCount());
            responseJSON.put("txnCommitted", cluster.getTxnCommittedCount());
            responseJSON.put("txnRollback", cluster.getTxnRollbackCount());
            responseJSON.put("userName", userName);
            responseJSON.put("connectedFlag", cluster.isConnectedFlag());
            responseJSON.put("connectedErrorMsg", cluster.getConnectionErrorMsg());

            return responseJSON;
        } catch (JSONException e) {
            throw new Exception(e);
        }
    }
}