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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.asdc.healthcheck;
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.apache.http.HttpStatus;
import org.openecomp.mso.HealthCheckUtils;
import org.openecomp.mso.logger.MessageEnum;
import org.openecomp.mso.logger.MsoLogger;
import org.openecomp.mso.properties.MsoJsonProperties;
import org.openecomp.mso.properties.MsoPropertiesFactory;
import org.openecomp.mso.utils.UUIDChecker;
@Path("/")
public class HealthCheckHandler {
private static MsoLogger msoLogger = MsoLogger.getMsoLogger(MsoLogger.Catalog.ASDC);
private static final String MSO_PROP_ASDC = "MSO_PROP_ASDC";
private static MsoPropertiesFactory msoPropertiesFactory = new MsoPropertiesFactory();
private static final String SUC_HTML = "<!DOCTYPE html><html><head><meta charset=\"ISO-8859-1\"><title>Health Check</title></head><body>Application ready</body></html>";
private static final String NOT_FOUND = "<!DOCTYPE html><html><head><meta charset=\"ISO-8859-1\"><title>Application Not Ready</title></head><body>Application Not Ready. Properties file missing or invalid or database Connection failed</body></html>";
private static final Response OK_RESPONSE = Response.status (HttpStatus.SC_OK).entity (SUC_HTML).build ();
private static final Response NOK_RESPONSE = Response.status (HttpStatus.SC_SERVICE_UNAVAILABLE).entity (NOT_FOUND).build ();
@HEAD
@GET
@Path("/healthcheck")
@Produces("text/html")
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;
}
MsoJsonProperties props = loadMsoProperties ();
if (props == null) {
msoLogger.recordAuditEvent (startTime, MsoLogger.StatusCode.ERROR, MsoLogger.ResponseCode.ServiceNotAvailable, "Application Not Ready");
return HealthCheckUtils.NOT_STARTED_RESPONSE;
}
if (!healthCheck.catalogDBCheck (msoLogger, startTime)) {
return HealthCheckUtils.NOT_STARTED_RESPONSE;
}
msoLogger.debug("healthcheck - Successful");
return HealthCheckUtils.HEALTH_CHECK_RESPONSE;
}
private MsoJsonProperties loadMsoProperties () {
MsoJsonProperties msoProperties;
try {
msoProperties = msoPropertiesFactory.getMsoJsonProperties(MSO_PROP_ASDC);
} catch (Exception e) {
msoLogger.error (MessageEnum.ASDC_PROPERTIES_NOT_FOUND, MSO_PROP_ASDC, "", "", MsoLogger.ErrorCode.DataError, "Exception - getMsoJsonProperties", e);
return null;
}
if (msoProperties !=null && msoProperties.getJsonRootNode().elements().hasNext()) {
return msoProperties;
} else {
msoLogger.error (MessageEnum.ASDC_PROPERTIES_NOT_FOUND , MSO_PROP_ASDC, "", "", MsoLogger.ErrorCode.DataError, "ASDC properties not found");
return null;
}
}
}
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