| /* |
| * 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.clerezza.jaxrs.utils; |
| |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| |
| import javax.ws.rs.WebApplicationException; |
| import javax.ws.rs.core.Response; |
| import javax.ws.rs.core.UriInfo; |
| import javax.ws.rs.core.Response.ResponseBuilder; |
| |
| /** |
| * The TrailingSlash utility checks if the URI given through |
| * <code>UriInfo</code> ends or doesn't end with a slash ('/'). If the URI does not |
| * conform, then a <code>WebApplicationException<code> |
| * is thrown. This exception contains a response with status code 303 ("See-Other"), |
| * causing a redirect to the correct URI. |
| * |
| * @author mir |
| * |
| */ |
| public class TrailingSlash { |
| |
| /** |
| * Checks if an slash ('/') is present at the end of the URI given by |
| * <code>UriInfo</code>. If not then a redirect is triggered to the URI with |
| * the slash at the end. |
| * |
| * @param uriInfo |
| */ |
| public static void enforcePresent(UriInfo uriInfo) { |
| String absolutPath = uriInfo.getAbsolutePath().toString(); |
| if (!absolutPath.endsWith("/")) { |
| String redirectUri = absolutPath + "/"; |
| Response response = createSeeOtherResponse(redirectUri); |
| throw new WebApplicationException(response); |
| } |
| } |
| |
| /** |
| * Checks if no slash ('/') is present at the end of the URI given by |
| * <code>UriInfo</code>. If a slash is present, a redirect is triggered to |
| * the URI with no slash at the end. |
| * |
| * @param uriInfo |
| */ |
| public static void enforceNotPresent(UriInfo uriInfo) { |
| String absolutPath = uriInfo.getAbsolutePath().toString(); |
| if (absolutPath.endsWith("/")) { |
| String redirectUri = absolutPath.substring(0, |
| absolutPath.length() - 1); |
| Response response = createSeeOtherResponse(redirectUri); |
| throw new WebApplicationException(response); |
| } |
| } |
| |
| private static Response createSeeOtherResponse(String redirectUri) { |
| URI seeOtherUri = null; |
| try { |
| seeOtherUri = new URI(redirectUri); |
| } catch (URISyntaxException e) { |
| e.printStackTrace(); |
| throw new RuntimeException(e); |
| } |
| ResponseBuilder rb = Response.seeOther(seeOtherUri); |
| return rb.build(); |
| } |
| } |