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.syncope.ext.saml2lsp.agent; import java.io.IOException; import java.io.InputStream; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.ws.rs.core.MediaType; import javax.ws.rs.core.Response; import org.apache.commons.io.IOUtils; import org.apache.commons.lang3.StringUtils; import org.apache.cxf.jaxrs.client.WebClient; import org.apache.syncope.client.lib.SyncopeClient; import org.apache.syncope.common.rest.api.service.SAML2SPService; @WebServlet(name = "metadata", urlPatterns = { "/saml2sp/metadata" }) public class Metadata extends HttpServlet { private static final long serialVersionUID = 694030186105137875L; @Override protected void doGet(final HttpServletRequest request, final HttpServletResponse response) throws ServletException, IOException { SyncopeClient anonymous = (SyncopeClient) request.getServletContext() .getAttribute(Constants.SYNCOPE_ANONYMOUS_CLIENT); SAML2SPService service = anonymous.getService(SAML2SPService.class); WebClient.client(service).accept(MediaType.APPLICATION_XML_TYPE).type(MediaType.APPLICATION_XML_TYPE); try { Response metadataResponse = service.getMetadata( StringUtils.substringBefore(request.getRequestURL().toString(), "/saml2sp"), "saml2sp"); response.setContentType(metadataResponse.getMediaType().toString()); IOUtils.copy((InputStream) metadataResponse.getEntity(), response.getOutputStream()); ((InputStream) metadataResponse.getEntity()).close(); } catch (Exception e) { throw new ServletException(e.getMessage()); } } }