jp.primecloud.auto.api.lb.DescribeLoadBalancer.java Source code

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Here is the source code for jp.primecloud.auto.api.lb.DescribeLoadBalancer.java

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/*
 * Copyright 2014 by SCSK Corporation.
 * 
 * This file is part of PrimeCloud Controller(TM).
 * 
 * PrimeCloud Controller(TM) is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 * 
 * PrimeCloud Controller(TM) is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with PrimeCloud Controller(TM). If not, see <http://www.gnu.org/licenses/>.
 */
package jp.primecloud.auto.api.lb;

import java.util.Collections;
import java.util.List;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.MediaType;

import jp.primecloud.auto.api.ApiSupport;
import jp.primecloud.auto.api.ApiValidate;

import org.apache.commons.lang.BooleanUtils;

import jp.primecloud.auto.api.response.lb.AutoScalingConfResponse;
import jp.primecloud.auto.api.response.lb.DescribeLoadBalancerResponse;
import jp.primecloud.auto.api.response.lb.LoadBalancerHealthCheckResponse;
import jp.primecloud.auto.api.response.lb.LoadBalancerInstanceResponse;
import jp.primecloud.auto.api.response.lb.LoadBalancerListenerResponse;
import jp.primecloud.auto.common.status.ComponentInstanceStatus;
import jp.primecloud.auto.common.status.LoadBalancerInstanceStatus;
import jp.primecloud.auto.entity.crud.AutoScalingConf;
import jp.primecloud.auto.entity.crud.ComponentInstance;
import jp.primecloud.auto.entity.crud.LoadBalancer;
import jp.primecloud.auto.entity.crud.LoadBalancerHealthCheck;
import jp.primecloud.auto.entity.crud.LoadBalancerInstance;
import jp.primecloud.auto.entity.crud.LoadBalancerListener;
import jp.primecloud.auto.exception.AutoApplicationException;
import jp.primecloud.auto.exception.AutoException;
import jp.primecloud.auto.service.impl.Comparators;
import jp.primecloud.auto.util.MessageUtils;

@Path("/DescribeLoadBalancer")
public class DescribeLoadBalancer extends ApiSupport {

    /**
     *
     * ??
     *
     * @param farmNo ?
     * @param loadBalancerNo ??
     *
     * @return DescribeLoadBalancerResponse
     */
    @GET
    @Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
    public DescribeLoadBalancerResponse describeLoadBalancer(@QueryParam(PARAM_NAME_FARM_NO) String farmNo,
            @QueryParam(PARAM_NAME_LOAD_BALANCER_NO) String loadBalancerNo) {

        DescribeLoadBalancerResponse response = new DescribeLoadBalancerResponse();

        try {
            // ?
            // FarmNo
            ApiValidate.validateFarmNo(farmNo);
            // LoadBalancerNo
            ApiValidate.validateLoadBalancerNo(loadBalancerNo);

            // ??
            LoadBalancer loadBalancer = loadBalancerDao.read(Long.parseLong(loadBalancerNo));
            if (loadBalancer == null) {
                // ?????
                throw new AutoApplicationException("EAPI-100000", "LoadBalancer", PARAM_NAME_LOAD_BALANCER_NO,
                        loadBalancerNo);
            }

            if (BooleanUtils.isFalse(loadBalancer.getFarmNo().equals(Long.parseLong(farmNo)))) {
                //??????
                throw new AutoApplicationException("EAPI-100022", "LoadBalancer", farmNo,
                        PARAM_NAME_LOAD_BALANCER_NO, loadBalancerNo);
            }

            //?
            response = new DescribeLoadBalancerResponse(loadBalancer);

            //?
            List<LoadBalancerListener> listeners = loadBalancerListenerDao
                    .readByLoadBalancerNo(Long.parseLong(loadBalancerNo));
            if (listeners.isEmpty() == false) {
                //
                Collections.sort(listeners, Comparators.COMPARATOR_LOAD_BALANCER_LISTENER);
            }
            for (LoadBalancerListener listener : listeners) {
                //
                response.addListener(new LoadBalancerListenerResponse(listener));
            }

            //??
            LoadBalancerHealthCheck healthCheck = loadBalancerHealthCheckDao.read(Long.parseLong(loadBalancerNo));
            if (healthCheck != null) {
                //?
                response.setHealthCheck(new LoadBalancerHealthCheckResponse(healthCheck));
            }

            //???
            List<ComponentInstance> componentInstances = componentInstanceDao
                    .readByComponentNo(loadBalancer.getComponentNo());
            if (componentInstances.isEmpty() == false) {
                //
                Collections.sort(componentInstances, Comparators.COMPARATOR_COMPONENT_INSTANCE);
            }

            for (ComponentInstance componentInstance : componentInstances) {
                // ?????????
                if (BooleanUtils.isNotTrue(componentInstance.getAssociate())) {
                    ComponentInstanceStatus status = ComponentInstanceStatus
                            .fromStatus(componentInstance.getStatus());
                    if (status == ComponentInstanceStatus.STOPPED) {
                        continue;
                    }
                }
                //??
                LoadBalancerInstance loadBalancerInstance = loadBalancerInstanceDao
                        .read(Long.parseLong(loadBalancerNo), componentInstance.getInstanceNo());

                LoadBalancerInstanceResponse loadBalancerInstanceResponse = new LoadBalancerInstanceResponse();
                loadBalancerInstanceResponse.setInstanceNo(componentInstance.getInstanceNo());
                if (loadBalancerInstance == null) {
                    //??????????
                    loadBalancerInstanceResponse.setEnabled(false);
                    loadBalancerInstanceResponse.setStatus(LoadBalancerInstanceStatus.STOPPED.toString());
                } else {
                    loadBalancerInstanceResponse.setEnabled(loadBalancerInstance.getEnabled());
                    loadBalancerInstanceResponse.setStatus(loadBalancerInstance.getStatus());
                }
                //?
                response.addInstance(loadBalancerInstanceResponse);
            }

            //?
            AutoScalingConf autoScalingConf = autoScalingConfDao.read(Long.parseLong(loadBalancerNo));
            if (autoScalingConf != null) {
                //
                response.setAutoScaling(new AutoScalingConfResponse(autoScalingConf));
            }

            response.setSuccess(true);
        } catch (Throwable e) {
            String message = "";
            if (e instanceof AutoException || e instanceof AutoApplicationException) {
                message = e.getMessage();
            } else {
                message = MessageUtils.getMessage("EAPI-000000");
            }
            log.error(message, e);
            response.setMessage(message);
            response.setSuccess(false);
        }

        return response;
    }
}