Java tutorial
/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.apache.cxf.fediz.service.idp.protocols; import java.util.ArrayList; import java.util.Collections; import java.util.List; import org.apache.cxf.fediz.service.idp.spi.ApplicationProtocolHandler; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Component; @Component public class ApplicationProtocolControllerImpl implements ProtocolController<ApplicationProtocolHandler> { private static final Logger LOG = LoggerFactory.getLogger(ApplicationProtocolControllerImpl.class); @Autowired private List<ApplicationProtocolHandler> protocolHandlers; @Override public ApplicationProtocolHandler getProtocolHandler(String protocol) { for (ApplicationProtocolHandler protocolHandler : protocolHandlers) { if (protocolHandler.equals(protocol)) { return protocolHandler; } } LOG.warn("No protocol handler found for {}", protocol); return null; } @Override public List<String> getProtocols() { List<String> protocols = new ArrayList<String>(); for (ApplicationProtocolHandler protocolHandler : protocolHandlers) { protocols.add(protocolHandler.getProtocol()); } return Collections.unmodifiableList(protocols); } }