| /** |
| * 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 |
| * <p> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p> |
| * 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.hadoop.ozone.s3.endpoint; |
| |
| import javax.ws.rs.Produces; |
| import javax.ws.rs.WebApplicationException; |
| import javax.ws.rs.core.MediaType; |
| import javax.ws.rs.core.MultivaluedMap; |
| import javax.ws.rs.ext.MessageBodyReader; |
| import javax.ws.rs.ext.Provider; |
| import javax.xml.bind.JAXBContext; |
| import javax.xml.bind.UnmarshallerHandler; |
| import javax.xml.parsers.SAXParserFactory; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.lang.annotation.Annotation; |
| import java.lang.reflect.Type; |
| |
| import org.xml.sax.InputSource; |
| import org.xml.sax.XMLReader; |
| |
| /** |
| * Custom unmarshaller to read MultiDeleteRequest w/wo namespace. |
| */ |
| @Provider |
| @Produces(MediaType.APPLICATION_XML) |
| public class MultiDeleteRequestUnmarshaller |
| implements MessageBodyReader<MultiDeleteRequest> { |
| |
| private final JAXBContext context; |
| private final XMLReader xmlReader; |
| |
| public MultiDeleteRequestUnmarshaller() { |
| try { |
| context = JAXBContext.newInstance(MultiDeleteRequest.class); |
| SAXParserFactory saxParserFactory = SAXParserFactory.newInstance(); |
| xmlReader = saxParserFactory.newSAXParser().getXMLReader(); |
| } catch (Exception ex) { |
| throw new AssertionError("Can't instantiate MultiDeleteRequest parser", |
| ex); |
| } |
| } |
| |
| @Override |
| public boolean isReadable(Class<?> type, Type genericType, |
| Annotation[] annotations, MediaType mediaType) { |
| return type.equals(MultiDeleteRequest.class); |
| } |
| |
| @Override |
| public MultiDeleteRequest readFrom(Class<MultiDeleteRequest> type, |
| Type genericType, Annotation[] annotations, MediaType mediaType, |
| MultivaluedMap<String, String> httpHeaders, InputStream entityStream) |
| throws IOException, WebApplicationException { |
| try { |
| UnmarshallerHandler unmarshallerHandler = |
| context.createUnmarshaller().getUnmarshallerHandler(); |
| |
| XmlNamespaceFilter filter = |
| new XmlNamespaceFilter("http://s3.amazonaws.com/doc/2006-03-01/"); |
| filter.setContentHandler(unmarshallerHandler); |
| filter.setParent(xmlReader); |
| filter.parse(new InputSource(entityStream)); |
| return (MultiDeleteRequest) unmarshallerHandler.getResult(); |
| } catch (Exception e) { |
| throw new WebApplicationException("Can't parse request body to XML.", e); |
| } |
| } |
| } |