001/** 002 * Copyright 2015 DuraSpace, Inc. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package org.fcrepo.http.api; 017 018import static java.lang.Boolean.parseBoolean; 019import static javax.ws.rs.core.Response.ok; 020import static org.slf4j.LoggerFactory.getLogger; 021 022import java.io.IOException; 023import java.io.OutputStream; 024 025import javax.inject.Inject; 026import javax.jcr.RepositoryException; 027import javax.jcr.Session; 028import javax.ws.rs.BadRequestException; 029import javax.ws.rs.DefaultValue; 030import javax.ws.rs.GET; 031import javax.ws.rs.Path; 032import javax.ws.rs.PathParam; 033import javax.ws.rs.QueryParam; 034import javax.ws.rs.WebApplicationException; 035import javax.ws.rs.core.Response; 036import javax.ws.rs.core.StreamingOutput; 037 038import org.fcrepo.kernel.models.FedoraResource; 039import org.fcrepo.serialization.FedoraObjectSerializer; 040import org.fcrepo.serialization.InvalidSerializationFormatException; 041import org.fcrepo.serialization.SerializerUtil; 042import org.slf4j.Logger; 043import org.springframework.beans.factory.annotation.Autowired; 044import org.springframework.context.annotation.Scope; 045 046/** 047 * Serialization for nodes 048 * 049 * @author awoods 050 */ 051@Scope("request") 052@Path("/{path: .*}/fcr:export") 053public class FedoraExport extends FedoraBaseResource { 054 055 @Autowired 056 protected SerializerUtil serializers; 057 058 @Inject 059 protected Session session; 060 061 private static final Logger LOGGER = getLogger(FedoraExport.class); 062 063 /** 064 * Export an object with the given format, e.g.: GET 065 * /path/to/object/fcr:export?format=jcr/xml : the node as JCR/XML 066 * 067 * @param externalPath the external path 068 * @param format the format string 069 * @param skipBinary the value whether skip binary 070 * @param recurse the value whether recurse 071 * @return object in the given format 072 */ 073 @GET 074 public Response exportObject( 075 @PathParam("path") final String externalPath, 076 @QueryParam("format") @DefaultValue("jcr/xml") final String format, 077 @QueryParam("skipBinary") @DefaultValue("true") final String skipBinary, 078 @QueryParam("recurse") @DefaultValue("false") final String recurse) { 079 080 final FedoraResource resource = getResourceFromPath(externalPath); 081 082 LOGGER.debug("Requested object serialization for {} using serialization format {}", resource, format); 083 084 final FedoraObjectSerializer serializer = 085 serializers.getSerializer(format); 086 087 return ok().type(serializer.getMediaType()).entity( 088 new StreamingOutput() { 089 090 @Override 091 public void write(final OutputStream out) 092 throws IOException { 093 094 try { 095 LOGGER.debug("Selecting from serializer map: {}", serializers); 096 LOGGER.debug("Retrieved serializer for format: {}", format); 097 serializer.serialize(resource, 098 out, 099 parseBoolean(skipBinary), 100 parseBoolean(recurse)); 101 LOGGER.info("Serialized to {}, '{}'", format, externalPath); 102 } catch (final RepositoryException e) { 103 throw new WebApplicationException(e); 104 } catch (InvalidSerializationFormatException e) { 105 throw new BadRequestException(e.getMessage()); 106 } 107 } 108 }).build(); 109 110 } 111 112 @Override 113 protected Session session() { 114 return session; 115 } 116}