edu.nwpu.gemfire.monitor.service.MemberRegionsService.java Source code

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Here is the source code for edu.nwpu.gemfire.monitor.service.MemberRegionsService.java

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/*
 *
 * 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 edu.nwpu.gemfire.monitor.service;

import java.text.DecimalFormat;

import javax.servlet.http.HttpServletRequest;

import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;

import edu.nwpu.gemfire.monitor.controllers.PulseController;
import edu.nwpu.gemfire.monitor.data.Cluster;
import edu.nwpu.gemfire.monitor.data.PulseConstants;
import edu.nwpu.gemfire.monitor.data.Repository;
import edu.nwpu.gemfire.monitor.util.StringUtils;

/**
 * Class MemberRegionsService
 * 
 * This class contains implementations of getting Memeber's Regions details.
 * 
 * @author Sachin K
 * @since version 7.5
 */

@Component
@Service("MemberRegions")
@Scope("singleton")
public class MemberRegionsService implements PulseService {

    private final ObjectMapper mapper = new ObjectMapper();

    // String constants used for forming a json response
    private final String NAME = "name";
    private final String ENTRY_SIZE = "entrySize";
    private final String DISC_STORE_NAME = "diskStoreName";
    private final String DISC_SYNCHRONOUS = "diskSynchronous";

    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();

        JsonNode requestDataJSON = mapper.readTree(request.getParameter("pulseData"));
        String memberName = requestDataJSON.get("MemberRegions").get("memberName").textValue();

        Cluster.Member clusterMember = cluster.getMember(StringUtils.makeCompliantName(memberName));

        if (clusterMember != null) {
            responseJSON.put("memberId", clusterMember.getId());
            responseJSON.put(this.NAME, clusterMember.getName());
            responseJSON.put("host", clusterMember.getHost());

            // member's regions
            Cluster.Region[] memberRegions = clusterMember.getMemberRegionsList();
            ArrayNode regionsListJson = mapper.createArrayNode();
            for (Cluster.Region memberRegion : memberRegions) {
                ObjectNode regionJSON = mapper.createObjectNode();
                regionJSON.put(this.NAME, memberRegion.getName());

                if (PulseConstants.PRODUCT_NAME_SQLFIRE
                        .equalsIgnoreCase(PulseController.getPulseProductSupport())) {
                    // Convert region path to dot separated region path
                    regionJSON.put("fullPath", StringUtils.getTableNameFromRegionName(memberRegion.getFullPath()));
                } else {
                    regionJSON.put("fullPath", memberRegion.getFullPath());
                }

                regionJSON.put("type", memberRegion.getRegionType());
                regionJSON.put("entryCount", memberRegion.getSystemRegionEntryCount());
                Long entrySize = memberRegion.getEntrySize();

                DecimalFormat form = new DecimalFormat(PulseConstants.DECIMAL_FORMAT_PATTERN_2);
                String entrySizeInMB = form.format(entrySize / (1024f * 1024f));

                if (entrySize < 0) {
                    regionJSON.put(this.ENTRY_SIZE, this.VALUE_NA);
                } else {
                    regionJSON.put(this.ENTRY_SIZE, entrySizeInMB);
                }
                regionJSON.put("scope", memberRegion.getScope());
                String diskStoreName = memberRegion.getDiskStoreName();
                if (StringUtils.isNotNullNotEmptyNotWhiteSpace(diskStoreName)) {
                    regionJSON.put(this.DISC_STORE_NAME, diskStoreName);
                    regionJSON.put(this.DISC_SYNCHRONOUS, memberRegion.isDiskSynchronous());
                } else {
                    regionJSON.put(this.DISC_SYNCHRONOUS, this.VALUE_NA);
                    regionJSON.put(this.DISC_STORE_NAME, "");
                }
                regionJSON.put("gatewayEnabled", memberRegion.getWanEnabled());

                regionsListJson.add(regionJSON);
            }
            responseJSON.put("memberRegions", regionsListJson);

            // response
            responseJSON.put("status", "Normal");

        }

        // Send json response
        return responseJSON;
    }
}