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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* 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.sdc.be.servlets;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.jcabi.aspects.Loggable;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.media.ArraySchema;
import io.swagger.v3.oas.annotations.media.Content;
import io.swagger.v3.oas.annotations.media.Schema;
import io.swagger.v3.oas.annotations.responses.ApiResponse;
import io.swagger.v3.oas.annotations.servers.Server;
import io.swagger.v3.oas.annotations.tags.Tag;
import io.swagger.v3.oas.annotations.tags.Tags;
import java.util.List;
import javax.inject.Inject;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.apache.commons.lang3.tuple.Pair;
import org.openecomp.sdc.be.components.health.HealthCheckBusinessLogic;
import org.openecomp.sdc.be.config.BeEcompErrorManager;
import org.openecomp.sdc.be.dao.api.ActionStatus;
import org.openecomp.sdc.be.impl.ComponentsUtils;
import org.openecomp.sdc.be.user.UserBusinessLogic;
import org.openecomp.sdc.common.api.Constants;
import org.openecomp.sdc.common.api.HealthCheckInfo;
import org.openecomp.sdc.common.api.HealthCheckWrapper;
import org.openecomp.sdc.common.log.wrappers.Logger;
import org.springframework.stereotype.Controller;
@Loggable(prepend = true, value = Loggable.TRACE, trim = false)
@Path("/")
@Tags({@Tag(name = "SDCE-2 APIs")})
@Server(url = "/sdc2/rest")
@Controller
public class BeMonitoringServlet extends BeGenericServlet {
private static final Logger log = Logger.getLogger(BeMonitoringServlet.class);
private final Gson prettyGson = new GsonBuilder().setPrettyPrinting().create();
private final HealthCheckBusinessLogic healthCheckBusinessLogic;
@Inject
public BeMonitoringServlet(UserBusinessLogic userBusinessLogic, ComponentsUtils componentsUtils,
HealthCheckBusinessLogic healthCheckBusinessLogic) {
super(userBusinessLogic, componentsUtils);
this.healthCheckBusinessLogic = healthCheckBusinessLogic;
}
@GET
@Path("/healthCheck")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
@Operation(description = "Return aggregate BE health check of SDC BE components", summary = "return BE health check", responses = {
@ApiResponse(content = @Content(array = @ArraySchema(schema = @Schema(implementation = String.class)))),
@ApiResponse(responseCode = "200", description = "SDC BE components are all up"),
@ApiResponse(responseCode = "500", description = "One or more SDC BE components are down")})
public Response getHealthCheck(@Context final HttpServletRequest request) {
try {
Pair<Boolean, List<HealthCheckInfo>> beHealthCheckInfosStatus = healthCheckBusinessLogic.getBeHealthCheckInfosStatus();
Boolean aggregateStatus = beHealthCheckInfosStatus.getLeft();
ActionStatus status = aggregateStatus ? ActionStatus.OK : ActionStatus.GENERAL_ERROR;
String sdcVersion = getVersionFromContext(request);
if (sdcVersion == null || sdcVersion.isEmpty()) {
sdcVersion = "UNKNOWN";
}
String siteMode = healthCheckBusinessLogic.getSiteMode();
HealthCheckWrapper healthCheck = new HealthCheckWrapper(beHealthCheckInfosStatus.getRight(), sdcVersion, siteMode);
// The response can be either with 200 or 500 aggregate status - the
// body of individual statuses is returned either way
String healthCheckStr = prettyGson.toJson(healthCheck);
return buildOkResponse(getComponentsUtils().getResponseFormat(status), healthCheckStr);
} catch (Exception e) {
BeEcompErrorManager.getInstance().logBeHealthCheckError("BeHealthCheck");
log.debug("BE health check unexpected exception", e);
throw e;
}
}
private String getVersionFromContext(HttpServletRequest request) {
ServletContext servletContext = request.getSession().getServletContext();
return (String) servletContext.getAttribute(Constants.ASDC_RELEASE_VERSION_ATTR);
}
}
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