org.venice.piazza.servicecontroller.messaging.handlers.ListServiceHandler.java Source code

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Here is the source code for org.venice.piazza.servicecontroller.messaging.handlers.ListServiceHandler.java

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/*******************************************************************************
 * Copyright 2016, RadiantBlue Technologies, Inc.
 *
 * 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.
 *******************************************************************************/
package org.venice.piazza.servicecontroller.messaging.handlers;

import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Component;
import org.venice.piazza.servicecontroller.data.mongodb.accessors.MongoAccessor;

import com.fasterxml.jackson.databind.ObjectMapper;

import model.job.PiazzaJobType;
import model.service.metadata.Service;
import util.PiazzaLogger;

/**
 * @author mlynum
 * @version 1.0
 */
@Component
public class ListServiceHandler implements PiazzaJobHandler {

    private static final Logger LOGGER = LoggerFactory.getLogger(ListServiceHandler.class);

    @Autowired
    private MongoAccessor accessor;
    @Autowired
    private PiazzaLogger coreLogger;

    /**
     * ListService handler
     */
    @Override
    public ResponseEntity<String> handle(PiazzaJobType jobRequest) {
        coreLogger.log("listing service", PiazzaLogger.INFO);
        ResponseEntity<String> handleResourceReturn = handle();
        if (handleResourceReturn.getBody().length() > 0) {
            return new ResponseEntity<>(handleResourceReturn.getBody(), handleResourceReturn.getStatusCode());
        } else {
            coreLogger.log("Something went wrong when trying to get a list of services", PiazzaLogger.ERROR);
            return new ResponseEntity<>("Could not retrieve a list of user services", HttpStatus.NOT_FOUND);
        }
    }

    public ResponseEntity<String> handle() {
        ResponseEntity<String> responseEntity = null;
        try {
            List<Service> rmList = accessor.list();
            ObjectMapper mapper = makeObjectMapper();
            String result = mapper.writeValueAsString(rmList);
            responseEntity = new ResponseEntity<String>(result, HttpStatus.OK);
        } catch (Exception ex) {
            coreLogger.log(ex.getMessage(), PiazzaLogger.ERROR);
            responseEntity = new ResponseEntity<String>("Could not retrieve a list of user services",
                    HttpStatus.NOT_FOUND);
        }

        return responseEntity;
    }

    ObjectMapper makeObjectMapper() {
        return new ObjectMapper();
    }
}