001/* 002 * Licensed to DuraSpace under one or more contributor license agreements. 003 * See the NOTICE file distributed with this work for additional information 004 * regarding copyright ownership. 005 * 006 * DuraSpace licenses this file to you under the Apache License, 007 * Version 2.0 (the "License"); you may not use this file except in 008 * compliance with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.fcrepo.http.api; 019 020import static javax.ws.rs.core.HttpHeaders.LINK; 021import static org.fcrepo.http.commons.domain.RDFMediaType.JSON_LD; 022import static org.fcrepo.http.commons.domain.RDFMediaType.N3_WITH_CHARSET; 023import static org.fcrepo.http.commons.domain.RDFMediaType.N3_ALT2_WITH_CHARSET; 024import static org.fcrepo.http.commons.domain.RDFMediaType.NTRIPLES; 025import static org.fcrepo.http.commons.domain.RDFMediaType.RDF_XML; 026import static org.fcrepo.http.commons.domain.RDFMediaType.TEXT_HTML_WITH_CHARSET; 027import static org.fcrepo.http.commons.domain.RDFMediaType.TEXT_PLAIN_WITH_CHARSET; 028import static org.fcrepo.http.commons.domain.RDFMediaType.TURTLE_WITH_CHARSET; 029import static org.fcrepo.http.commons.domain.RDFMediaType.TURTLE_X; 030import static org.fcrepo.kernel.api.RdfLexicon.LDP_NAMESPACE; 031import static org.slf4j.LoggerFactory.getLogger; 032 033import javax.ws.rs.GET; 034import javax.ws.rs.NotFoundException; 035import javax.ws.rs.Path; 036import javax.ws.rs.PathParam; 037import javax.ws.rs.Produces; 038import javax.ws.rs.core.Link; 039import com.google.common.annotations.VisibleForTesting; 040import org.fcrepo.http.commons.responses.HtmlTemplate; 041import org.fcrepo.http.commons.responses.RdfNamespacedStream; 042import org.fcrepo.kernel.api.models.FedoraBinary; 043import org.fcrepo.kernel.api.rdf.DefaultRdfStream; 044import org.slf4j.Logger; 045import org.springframework.context.annotation.Scope; 046 047import com.codahale.metrics.annotation.Timed; 048 049/** 050 * Run a fixity check on a path 051 * 052 * @author ajs6f 053 * @since Jun 12, 2013 054 */ 055@Scope("request") 056@Path("/{path: .*}/fcr:fixity") 057public class FedoraFixity extends ContentExposingResource { 058 059 private static final Logger LOGGER = getLogger(FedoraFixity.class); 060 061 @PathParam("path") protected String externalPath; 062 063 064 /** 065 * Default JAX-RS entry point 066 */ 067 public FedoraFixity() { 068 super(); 069 } 070 071 /** 072 * Create a new FedoraNodes instance for a given path 073 * @param externalPath the external path 074 */ 075 @VisibleForTesting 076 public FedoraFixity(final String externalPath) { 077 this.externalPath = externalPath; 078 } 079 080 /** 081 * Get the results of a fixity check for a path 082 * 083 * GET /path/to/some/datastream/fcr:fixity 084 * 085 * @return datastream fixity in the given format 086 */ 087 @GET 088 @Timed 089 @HtmlTemplate(value = "fcr:fixity") 090 @Produces({TURTLE_WITH_CHARSET + ";qs=1.0", JSON_LD + ";qs=0.8", N3_WITH_CHARSET, N3_ALT2_WITH_CHARSET, 091 RDF_XML, NTRIPLES, TEXT_PLAIN_WITH_CHARSET, TURTLE_X, TEXT_HTML_WITH_CHARSET, "*/*"}) 092 public RdfNamespacedStream getDatastreamFixity() { 093 094 if (!(resource() instanceof FedoraBinary)) { 095 throw new NotFoundException(resource() + " is not a binary"); 096 } 097 098 final Link.Builder resourceLink = Link.fromUri(LDP_NAMESPACE + "Resource").rel("type"); 099 servletResponse.addHeader(LINK, resourceLink.build().toString()); 100 final Link.Builder rdfSourceLink = Link.fromUri(LDP_NAMESPACE + "RDFSource").rel("type"); 101 servletResponse.addHeader(LINK, rdfSourceLink.build().toString()); 102 103 LOGGER.info("Get fixity for '{}'", externalPath); 104 return new RdfNamespacedStream( 105 new DefaultRdfStream(asNode(resource()), 106 ((FedoraBinary)resource()).getFixity(translator())), 107 session().getFedoraSession().getNamespaces()); 108 } 109 110 @Override 111 protected String externalPath() { 112 return externalPath; 113 } 114}