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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 java.util.Map;
import java.util.Map.Entry;
import java.util.function.Supplier;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
import org.openecomp.sdc.be.components.clean.ComponentsCleanBusinessLogic;
import org.openecomp.sdc.be.components.impl.ArtifactsBusinessLogic;
import org.openecomp.sdc.be.components.impl.ComponentBusinessLogic;
import org.openecomp.sdc.be.components.impl.ComponentInstanceBusinessLogic;
import org.openecomp.sdc.be.components.impl.ElementBusinessLogic;
import org.openecomp.sdc.be.components.impl.GroupBusinessLogic;
import org.openecomp.sdc.be.components.impl.MonitoringBusinessLogic;
import org.openecomp.sdc.be.components.impl.ProductBusinessLogic;
import org.openecomp.sdc.be.components.impl.ProductComponentInstanceBusinessLogic;
import org.openecomp.sdc.be.components.impl.ResourceBusinessLogic;
import org.openecomp.sdc.be.components.impl.ServiceBusinessLogic;
import org.openecomp.sdc.be.components.impl.ServiceComponentInstanceBusinessLogic;
import org.openecomp.sdc.be.components.impl.VFComponentInstanceBusinessLogic;
import org.openecomp.sdc.be.components.lifecycle.LifecycleBusinessLogic;
import org.openecomp.sdc.be.config.BeEcompErrorManager;
import org.openecomp.sdc.be.dao.api.ActionStatus;
import org.openecomp.sdc.be.dao.api.IElementDAO;
import org.openecomp.sdc.be.datatypes.enums.ComponentTypeEnum;
import org.openecomp.sdc.be.ecomp.converters.AssetMetadataConverter;
import org.openecomp.sdc.be.impl.ComponentsUtils;
import org.openecomp.sdc.be.impl.WebAppContextWrapper;
import org.openecomp.sdc.be.model.User;
import org.openecomp.sdc.be.resources.data.auditing.AuditingActionEnum;
import org.openecomp.sdc.be.user.UserBusinessLogic;
import org.openecomp.sdc.common.api.Constants;
import org.openecomp.sdc.common.config.EcompErrorName;
import org.openecomp.sdc.common.servlets.BasicServlet;
import org.openecomp.sdc.exception.ResponseFormat;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.context.WebApplicationContext;
import fj.data.Either;
public class BeGenericServlet extends BasicServlet {
@Context
protected HttpServletRequest servletRequest;
private static Logger log = LoggerFactory.getLogger(BeGenericServlet.class.getName());
/******************** New error response mechanism
* @param additionalParams **************/
protected Response buildErrorResponse(ResponseFormat requestErrorWrapper) {
return Response.status(requestErrorWrapper.getStatus()).entity(gson.toJson(requestErrorWrapper.getRequestError())).build();
}
protected Response buildOkResponse(ResponseFormat errorResponseWrapper, Object entity) {
return buildOkResponse(errorResponseWrapper, entity, null);
}
protected Response buildOkResponse(ResponseFormat errorResponseWrapper, Object entity, Map<String, String> additionalHeaders) {
int status = errorResponseWrapper.getStatus();
ResponseBuilder responseBuilder = Response.status(status);
if (entity != null) {
if (log.isTraceEnabled())
log.trace("returned entity is {}", entity.toString());
responseBuilder = responseBuilder.entity(entity);
}
if (additionalHeaders != null) {
for (Entry<String, String> additionalHeader : additionalHeaders.entrySet()) {
String headerName = additionalHeader.getKey();
String headerValue = additionalHeader.getValue();
if (log.isTraceEnabled())
log.trace("Adding header {} with value {} to the response", headerName, headerValue);
responseBuilder.header(headerName, headerValue);
}
}
return responseBuilder.build();
}
/*******************************************************************************************************/
protected Either<User, ResponseFormat> getUser(final HttpServletRequest request, String userId) {
Either<User, ActionStatus> eitherCreator = getUserAdminManager(request.getSession().getServletContext()).getUser(userId, false);
if (eitherCreator.isRight()) {
log.info("createResource method - user is not listed. userId= {}", userId);
ResponseFormat errorResponse = getComponentsUtils().getResponseFormat(ActionStatus.MISSING_INFORMATION);
User user = new User("", "", userId, "", null, null);
getComponentsUtils().auditResource(errorResponse, user, null, "", "", AuditingActionEnum.CHECKOUT_RESOURCE, null);
return Either.right(errorResponse);
}
return Either.left(eitherCreator.left().value());
}
protected UserBusinessLogic getUserAdminManager(ServletContext context) {
return getClassFromWebAppContext(context, () -> UserBusinessLogic.class);
}
protected ResourceBusinessLogic getResourceBL(ServletContext context) {
return getClassFromWebAppContext(context, () -> ResourceBusinessLogic.class);
}
protected ComponentsCleanBusinessLogic getComponentCleanerBL(ServletContext context) {
return getClassFromWebAppContext(context, () -> ComponentsCleanBusinessLogic.class);
}
protected ServiceBusinessLogic getServiceBL(ServletContext context) {
return getClassFromWebAppContext(context, () -> ServiceBusinessLogic.class);
}
protected ProductBusinessLogic getProductBL(ServletContext context) {
return getClassFromWebAppContext(context, () -> ProductBusinessLogic.class);
}
protected ArtifactsBusinessLogic getArtifactBL(ServletContext context) {
return getClassFromWebAppContext(context, () -> ArtifactsBusinessLogic.class);
}
protected ElementBusinessLogic getElementBL(ServletContext context) {
return getClassFromWebAppContext(context, () -> ElementBusinessLogic.class);
}
protected MonitoringBusinessLogic getMonitoringBL(ServletContext context) {
return getClassFromWebAppContext(context, () -> MonitoringBusinessLogic.class);
}
protected AssetMetadataConverter getAssetUtils(ServletContext context) {
return getClassFromWebAppContext(context, () -> AssetMetadataConverter.class);
}
protected LifecycleBusinessLogic getLifecycleBL(ServletContext context) {
return getClassFromWebAppContext(context, () -> LifecycleBusinessLogic.class);
}
protected <SomeClass> SomeClass getClassFromWebAppContext(ServletContext context, Supplier<Class<SomeClass>> businessLogicClassGen) {
WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
SomeClass monitoringBusinessLogic = webApplicationContext.getBean(businessLogicClassGen.get());
return monitoringBusinessLogic;
}
protected GroupBusinessLogic getGroupBL(ServletContext context) {
WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
GroupBusinessLogic groupBusinessLogic = webApplicationContext.getBean(GroupBusinessLogic.class);
return groupBusinessLogic;
}
protected ComponentInstanceBusinessLogic getComponentInstanceBL(ServletContext context, ComponentTypeEnum containerComponentType) {
WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
if (containerComponentType == ComponentTypeEnum.RESOURCE) {
return webApplicationContext.getBean(VFComponentInstanceBusinessLogic.class);
}
if (containerComponentType == ComponentTypeEnum.SERVICE) {
return webApplicationContext.getBean(ServiceComponentInstanceBusinessLogic.class);
}
if (containerComponentType == ComponentTypeEnum.PRODUCT) {
return webApplicationContext.getBean(ProductComponentInstanceBusinessLogic.class);
}
return null;
}
protected IElementDAO getElementDao(Class<? extends IElementDAO> clazz, ServletContext context) {
WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
return webApplicationContext.getBean(clazz);
}
protected ComponentsUtils getComponentsUtils() {
ServletContext context = this.servletRequest.getSession().getServletContext();
WebAppContextWrapper webApplicationContextWrapper = (WebAppContextWrapper) context.getAttribute(Constants.WEB_APPLICATION_CONTEXT_WRAPPER_ATTR);
WebApplicationContext webApplicationContext = webApplicationContextWrapper.getWebAppContext(context);
ComponentsUtils componentsUtils = webApplicationContext.getBean(ComponentsUtils.class);
return componentsUtils;
}
/**
* Used to support Unit Test.<br>
* Header Params are not supported in Unit Tests
*
* @return
*/
protected String initHeaderParam(String headerValue, HttpServletRequest request, String headerName) {
String retValue;
if (headerValue != null) {
retValue = headerValue;
} else {
retValue = request.getHeader(headerName);
}
return retValue;
}
protected String getContentDispositionValue(String artifactFileName) {
return new StringBuilder().append("attachment; filename=\"").append(artifactFileName).append("\"").toString();
}
protected ComponentBusinessLogic getComponentBL(ComponentTypeEnum componentTypeEnum, ServletContext context) {
ComponentBusinessLogic businessLogic;
switch (componentTypeEnum) {
case RESOURCE: {
businessLogic = getResourceBL(context);
break;
}
case SERVICE: {
businessLogic = getServiceBL(context);
break;
}
case PRODUCT: {
businessLogic = getProductBL(context);
break;
}
case RESOURCE_INSTANCE: {
businessLogic = getResourceBL(context);
break;
}
default: {
BeEcompErrorManager.getInstance().processEcompError(EcompErrorName.BeSystemError, "getComponentBL");
BeEcompErrorManager.getInstance().logBeSystemError("getComponentBL");
throw new IllegalArgumentException("Illegal component type:" + componentTypeEnum.getValue());
}
}
return businessLogic;
}
}
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