/* * Copyright 2016 the original author or authors. * * 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. */ package org.springframework.integration.http.config; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.context.annotation.ImportSelector; import org.springframework.core.type.AnnotationMetadata; import org.springframework.integration.http.support.HttpContextUtils; /** * @author Artem Bilan * @since 4.3 */ class IntegrationGraphControllerRegistrarImportSelector implements ImportSelector { private static final Log logger = LogFactory.getLog(IntegrationGraphControllerRegistrarImportSelector.class); @Override public String[] selectImports(AnnotationMetadata importingClassMetadata) { if (HttpContextUtils.SERVLET_PRESENT) { return new String[] { IntegrationGraphControllerRegistrar.class.getName() }; } else { logger.warn("The 'IntegrationGraphController' isn't registered with the application context because" + " there is no 'org.springframework.web.servlet.DispatcherServlet' in the classpath."); return new String[0]; } } }