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.openmeetings.webservice.util; import static org.apache.openmeetings.util.OpenmeetingsVariables.getRestAllowOrigin; import java.util.Arrays; import java.util.List; import java.util.Map; import java.util.TreeMap; import org.apache.cxf.interceptor.AbstractOutDatabindingInterceptor; import org.apache.cxf.message.Message; import org.apache.cxf.phase.Phase; import org.apache.wicket.util.string.Strings; public class AllowOriginProvider extends AbstractOutDatabindingInterceptor { public AllowOriginProvider() { super(Phase.MARSHAL); } @Override public void handleMessage(Message outMessage) { final String allowOrigin = getRestAllowOrigin(); if (!Strings.isEmpty(allowOrigin)) { @SuppressWarnings("unchecked") Map<String, List<String>> headers = (Map<String, List<String>>) outMessage .get(Message.PROTOCOL_HEADERS); if (headers == null) { headers = new TreeMap<>(String.CASE_INSENSITIVE_ORDER); outMessage.put(Message.PROTOCOL_HEADERS, headers); } headers.put("Access-Control-Allow-Origin", Arrays.asList(allowOrigin)); } } }