2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.openecomp.sdc.be.servlets;
23 import com.google.gson.Gson;
24 import com.google.gson.GsonBuilder;
25 import com.jcabi.aspects.Loggable;
26 import fj.data.Either;
27 import io.swagger.annotations.Api;
28 import io.swagger.annotations.ApiOperation;
29 import io.swagger.annotations.ApiResponse;
30 import io.swagger.annotations.ApiResponses;
31 import org.apache.commons.lang3.tuple.Pair;
32 import org.openecomp.sdc.be.components.health.HealthCheckBusinessLogic;
33 import org.openecomp.sdc.be.components.impl.MonitoringBusinessLogic;
34 import org.openecomp.sdc.be.config.BeEcompErrorManager;
35 import org.openecomp.sdc.be.dao.api.ActionStatus;
36 import org.openecomp.sdc.be.impl.WebAppContextWrapper;
37 import org.openecomp.sdc.common.api.Constants;
38 import org.openecomp.sdc.common.api.HealthCheckInfo;
39 import org.openecomp.sdc.common.api.HealthCheckWrapper;
40 import org.openecomp.sdc.common.config.EcompErrorName;
41 import org.openecomp.sdc.common.monitoring.MonitoringEvent;
42 import org.openecomp.sdc.exception.ResponseFormat;
43 import org.slf4j.Logger;
44 import org.slf4j.LoggerFactory;
45 import org.springframework.web.context.WebApplicationContext;
47 import javax.inject.Singleton;
48 import javax.servlet.ServletContext;
49 import javax.servlet.http.HttpServletRequest;
51 import javax.ws.rs.core.Context;
52 import javax.ws.rs.core.MediaType;
53 import javax.ws.rs.core.Response;
54 import java.util.List;
55 @Loggable(prepend = true, value = Loggable.TRACE, trim = false)
57 @Api(value = "BE Monitoring", description = "BE Monitoring")
59 public class BeMonitoringServlet extends BeGenericServlet {
61 Gson prettyGson = new GsonBuilder().setPrettyPrinting().create();
63 private static final Logger log = LoggerFactory.getLogger(ConfigServlet.class);
67 @Consumes(MediaType.APPLICATION_JSON)
68 @Produces(MediaType.APPLICATION_JSON)
69 @ApiOperation(value = "Return aggregate BE health check of SDC BE components", notes = "return BE health check", response = String.class)
70 @ApiResponses(value = { @ApiResponse(code = 200, message = "SDC BE components are all up"), @ApiResponse(code = 500, message = "One or more SDC BE components are down") })
71 public Response getHealthCheck(@Context final HttpServletRequest request) {
73 HealthCheckBusinessLogic healthCheckBusinessLogic = getHealthCheckBL(request.getSession().getServletContext());
74 Pair<Boolean, List<HealthCheckInfo>> beHealthCheckInfosStatus = healthCheckBusinessLogic.getBeHealthCheckInfosStatus();
75 Boolean aggregateStatus = beHealthCheckInfosStatus.getLeft();
76 ActionStatus status = aggregateStatus ? ActionStatus.OK : ActionStatus.GENERAL_ERROR;
77 String sdcVersion = getVersionFromContext(request);
78 if (sdcVersion == null || sdcVersion.isEmpty()) {
79 sdcVersion = "UNKNOWN";
81 String siteMode = healthCheckBusinessLogic.getSiteMode();
82 HealthCheckWrapper healthCheck = new HealthCheckWrapper(beHealthCheckInfosStatus.getRight(), sdcVersion, siteMode);
83 // The response can be either with 200 or 500 aggregate status - the
84 // body of individual statuses is returned either way
86 String healthCheckStr = prettyGson.toJson(healthCheck);
87 return buildOkResponse(getComponentsUtils().getResponseFormat(status), healthCheckStr);
89 } catch (Exception e) {
90 BeEcompErrorManager.getInstance().logBeHealthCheckError("BeHealthCheck");
91 log.debug("BE health check unexpected exception", e);
92 return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
98 @Consumes(MediaType.APPLICATION_JSON)
99 @Produces(MediaType.APPLICATION_JSON)
100 public Response processMonitoringMetrics(@Context final HttpServletRequest request, String json) {
102 MonitoringEvent monitoringEvent = convertContentToJson(json, MonitoringEvent.class);
103 if (monitoringEvent == null) {
104 return buildErrorResponse(getComponentsUtils().getResponseFormatAdditionalProperty(ActionStatus.GENERAL_ERROR));
106 log.trace("Received monitoring metrics: {}", monitoringEvent);
107 ServletContext context = request.getSession().getServletContext();
108 MonitoringBusinessLogic bl = getMonitoringBL(context);
109 Either<Boolean, ResponseFormat> result = bl.logMonitoringEvent(monitoringEvent);
110 if (result.isRight()) {
111 return buildErrorResponse(result.right().value());
113 return buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), null);
115 } catch (Exception e) {
116 log.debug("BE system metrics unexpected exception", e);
117 return buildErrorResponse(getComponentsUtils().getResponseFormatAdditionalProperty(ActionStatus.GENERAL_ERROR));
123 @Consumes(MediaType.APPLICATION_JSON)
124 @Produces(MediaType.APPLICATION_JSON)
125 @ApiOperation(value = "return the ASDC application version", notes = "return the ASDC application version", response = String.class)
126 @ApiResponses(value = { @ApiResponse(code = 200, message = "return ASDC version"), @ApiResponse(code = 500, message = "Internal Error") })
127 public Response getSdcVersion(@Context final HttpServletRequest request) {
129 String url = request.getMethod() + " " + request.getRequestURI();
130 log.debug("Start handle request of {}", url);
132 String version = getVersionFromContext(request);
133 log.debug("asdc version from manifest is: {}", version);
134 if (version == null || version.isEmpty()) {
135 return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.ASDC_VERSION_NOT_FOUND));
138 HealthCheckInfo versionInfo = new HealthCheckInfo();
139 versionInfo.setVersion(version);
141 // The response can be either with 200 or 500 aggregate status - the
142 // body of individual statuses is returned either way
143 return buildOkResponse(getComponentsUtils().getResponseFormat(ActionStatus.OK), versionInfo);
145 } catch (Exception e) {
146 BeEcompErrorManager.getInstance().logBeRestApiGeneralError("getSDCVersion");
147 log.debug("BE get ASDC version unexpected exception", e);
148 return buildErrorResponse(getComponentsUtils().getResponseFormat(ActionStatus.GENERAL_ERROR));
152 private String getVersionFromContext(HttpServletRequest request) {
153 ServletContext servletContext = request.getSession().getServletContext();
154 String version = (String) servletContext.getAttribute(Constants.ASDC_RELEASE_VERSION_ATTR);
158 protected MonitoringEvent convertContentToJson(String content, Class<MonitoringEvent> clazz) {
160 MonitoringEvent object = null;
162 object = gson.fromJson(content, clazz);
163 object.setFields(null);
164 } catch (Exception e) {
165 log.debug("Failed to convert the content {} to object.", content.substring(0, Math.min(50, content.length())), e);
171 private HealthCheckBusinessLogic getHealthCheckBL(ServletContext context) {
172 WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
173 WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
174 HealthCheckBusinessLogic healthCheckBl = webApplicationContext.getBean(HealthCheckBusinessLogic.class);
175 return healthCheckBl;