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/*-
 * ============LICENSE_START=======================================================
 * ONAP - SO
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. 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.
 * ============LICENSE_END=========================================================
 */

package org.openecomp.mso.apihandlerinfra;

import javax.ws.rs.GET;
import javax.ws.rs.HEAD;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Response;

import org.openecomp.mso.HealthCheckUtils;
import org.openecomp.mso.logger.MsoLogger;
import org.openecomp.mso.utils.UUIDChecker;

import com.wordnik.swagger.annotations.Api;
import com.wordnik.swagger.annotations.ApiOperation;

@Path("/healthcheck")
@Api(value="/healthcheck",description="API Handler Infra Health Check")
public class HealthcheckHandler {

    public final static String MSO_PROP_APIHANDLER_INFRA = "MSO_PROP_APIHANDLER_INFRA";

    private static MsoLogger msoLogger = MsoLogger.getMsoLogger (MsoLogger.Catalog.APIH);

    @HEAD
    @GET
    @Produces("text/html")
    @ApiOperation(value="Perform Health Check",response=Response.class)
    public Response healthcheck (@QueryParam("requestId") String requestId) {
        long startTime = System.currentTimeMillis ();
        MsoLogger.setServiceName ("Healthcheck");
        UUIDChecker.verifyOldUUID(requestId, msoLogger);
        HealthCheckUtils healthCheck = new HealthCheckUtils ();
        if (!healthCheck.siteStatusCheck(msoLogger)) {
            return HealthCheckUtils.HEALTH_CHECK_NOK_RESPONSE;
        }

        if (!healthCheck.configFileCheck(msoLogger, startTime, MSO_PROP_APIHANDLER_INFRA)) {
            return HealthCheckUtils.NOT_STARTED_RESPONSE;
        }

        if (!healthCheck.requestDBCheck (msoLogger, startTime)) {
            return HealthCheckUtils.NOT_STARTED_RESPONSE;
        }
        msoLogger.debug("healthcheck - Successful");
        return HealthCheckUtils.HEALTH_CHECK_RESPONSE;
    }
}