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; 019 020 021import static com.hp.hpl.jena.rdf.model.ModelFactory.createDefaultModel; 022import static com.hp.hpl.jena.vocabulary.RDF.type; 023import static java.util.EnumSet.of; 024import static java.util.stream.Stream.concat; 025import static java.util.stream.Stream.empty; 026import static javax.ws.rs.core.HttpHeaders.CACHE_CONTROL; 027import static javax.ws.rs.core.MediaType.APPLICATION_OCTET_STREAM_TYPE; 028import static javax.ws.rs.core.Response.ok; 029import static javax.ws.rs.core.Response.status; 030import static javax.ws.rs.core.Response.temporaryRedirect; 031import static javax.ws.rs.core.Response.Status.PARTIAL_CONTENT; 032import static javax.ws.rs.core.Response.Status.REQUESTED_RANGE_NOT_SATISFIABLE; 033import static org.apache.commons.lang3.StringUtils.isBlank; 034import static org.apache.jena.riot.RDFLanguages.contentTypeToLang; 035import static org.fcrepo.kernel.api.FedoraTypes.LDP_BASIC_CONTAINER; 036import static org.fcrepo.kernel.api.FedoraTypes.LDP_DIRECT_CONTAINER; 037import static org.fcrepo.kernel.api.FedoraTypes.LDP_INDIRECT_CONTAINER; 038import static org.fcrepo.kernel.api.RdfLexicon.BASIC_CONTAINER; 039import static org.fcrepo.kernel.api.RdfLexicon.CONTAINER; 040import static org.fcrepo.kernel.api.RdfLexicon.DIRECT_CONTAINER; 041import static org.fcrepo.kernel.api.RdfLexicon.INDIRECT_CONTAINER; 042import static org.fcrepo.kernel.api.RdfLexicon.LDP_NAMESPACE; 043import static org.fcrepo.kernel.api.RdfLexicon.isManagedNamespace; 044import static org.fcrepo.kernel.api.RdfLexicon.isManagedPredicateURI; 045import static org.fcrepo.kernel.api.RequiredRdfContext.EMBED_RESOURCES; 046import static org.fcrepo.kernel.api.RequiredRdfContext.INBOUND_REFERENCES; 047import static org.fcrepo.kernel.api.RequiredRdfContext.LDP_CONTAINMENT; 048import static org.fcrepo.kernel.api.RequiredRdfContext.LDP_MEMBERSHIP; 049import static org.fcrepo.kernel.api.RequiredRdfContext.MINIMAL; 050import static org.fcrepo.kernel.api.RequiredRdfContext.PROPERTIES; 051import static org.fcrepo.kernel.api.RequiredRdfContext.SERVER_MANAGED; 052 053import java.io.IOException; 054import java.io.InputStream; 055import java.net.URI; 056import java.net.URISyntaxException; 057import java.util.ArrayList; 058import java.util.Date; 059import java.util.List; 060import java.util.Set; 061import java.util.function.Predicate; 062import java.util.stream.Stream; 063 064import javax.inject.Inject; 065import javax.jcr.Session; 066import javax.servlet.http.HttpServletResponse; 067import javax.ws.rs.BadRequestException; 068import javax.ws.rs.BeanParam; 069import javax.ws.rs.WebApplicationException; 070import javax.ws.rs.core.CacheControl; 071import javax.ws.rs.core.Context; 072import javax.ws.rs.core.EntityTag; 073import javax.ws.rs.core.Link; 074import javax.ws.rs.core.MediaType; 075import javax.ws.rs.core.Request; 076import javax.ws.rs.core.Response; 077 078import com.google.common.annotations.VisibleForTesting; 079import org.apache.jena.atlas.RuntimeIOException; 080import org.apache.jena.riot.Lang; 081import org.apache.jena.riot.RiotException; 082import org.fcrepo.http.commons.api.HttpHeaderInjector; 083import org.fcrepo.http.commons.api.rdf.HttpTripleUtil; 084import org.fcrepo.http.commons.domain.MultiPrefer; 085import org.fcrepo.http.commons.domain.PreferTag; 086import org.fcrepo.http.commons.domain.Range; 087import org.fcrepo.http.commons.domain.ldp.LdpPreferTag; 088import org.fcrepo.http.commons.responses.RangeRequestInputStream; 089import org.fcrepo.http.commons.responses.RdfNamespacedStream; 090import org.fcrepo.kernel.api.RdfStream; 091import org.fcrepo.kernel.api.TripleCategory; 092import org.fcrepo.kernel.api.exception.InvalidChecksumException; 093import org.fcrepo.kernel.api.exception.MalformedRdfException; 094import org.fcrepo.kernel.api.exception.RepositoryRuntimeException; 095import org.fcrepo.kernel.api.models.Container; 096import org.fcrepo.kernel.api.models.FedoraBinary; 097import org.fcrepo.kernel.api.models.FedoraResource; 098import org.fcrepo.kernel.api.models.NonRdfSourceDescription; 099import org.fcrepo.kernel.api.rdf.DefaultRdfStream; 100import org.fcrepo.kernel.api.services.policy.StoragePolicyDecisionPoint; 101import org.fcrepo.kernel.modeshape.services.TransactionServiceImpl; 102import org.glassfish.jersey.media.multipart.ContentDisposition; 103import org.jvnet.hk2.annotations.Optional; 104 105import com.fasterxml.jackson.core.JsonParseException; 106import com.hp.hpl.jena.graph.Triple; 107import com.hp.hpl.jena.rdf.model.Model; 108 109/** 110 * An abstract class that sits between AbstractResource and any resource that 111 * wishes to share the routines for building responses containing binary 112 * content. 113 * 114 * @author Mike Durbin 115 * @author ajs6f 116 */ 117public abstract class ContentExposingResource extends FedoraBaseResource { 118 119 public static final MediaType MESSAGE_EXTERNAL_BODY = MediaType.valueOf("message/external-body"); 120 121 @Context protected Request request; 122 @Context protected HttpServletResponse servletResponse; 123 124 @Inject 125 @Optional 126 private HttpTripleUtil httpTripleUtil; 127 128 @Inject 129 @Optional 130 private HttpHeaderInjector httpHeaderInject; 131 132 @BeanParam 133 protected MultiPrefer prefer; 134 135 @Inject 136 @Optional 137 StoragePolicyDecisionPoint storagePolicyDecisionPoint; 138 139 protected FedoraResource resource; 140 141 @Inject 142 protected PathLockManager lockManager; 143 144 private static final Predicate<Triple> IS_MANAGED_TYPE = t -> t.getPredicate().equals(type.asNode()) && 145 isManagedNamespace.test(t.getObject().getNameSpace()); 146 private static final Predicate<Triple> IS_MANAGED_TRIPLE = IS_MANAGED_TYPE 147 .or(t -> isManagedPredicateURI.test(t.getPredicate().getURI())); 148 149 protected abstract String externalPath(); 150 151 protected Response getContent(final String rangeValue, 152 final RdfStream rdfStream) throws IOException { 153 return getContent(rangeValue, -1, rdfStream); 154 } 155 156 /** 157 * This method returns an HTTP response with content body appropriate to the following arguments. 158 * 159 * @param rangeValue starting and ending byte offsets, see {@link Range} 160 * @param limit is the number of child resources returned in the response, -1 for all 161 * @param rdfStream to which response RDF will be concatenated 162 * @return HTTP response 163 * @throws IOException in case of error extracting content 164 */ 165 protected Response getContent(final String rangeValue, 166 final int limit, 167 final RdfStream rdfStream) throws IOException { 168 169 final RdfNamespacedStream outputStream; 170 171 if (resource() instanceof FedoraBinary) { 172 173 final MediaType mediaType = MediaType.valueOf(((FedoraBinary) resource()).getMimeType()); 174 175 if (MESSAGE_EXTERNAL_BODY.isCompatible(mediaType) && mediaType.getParameters().containsKey( 176 "access-type") && mediaType.getParameters().get("access-type").equals("URL") && mediaType 177 .getParameters().containsKey("URL")) { 178 return temporaryRedirect(URI.create(mediaType.getParameters().get("URL"))).build(); 179 } 180 181 return getBinaryContent(rangeValue); 182 } else { 183 outputStream = new RdfNamespacedStream( 184 new DefaultRdfStream(rdfStream.topic(), concat(rdfStream, 185 getResourceTriples(limit))), 186 namespaceService.getNamespaces(session())); 187 if (prefer != null) { 188 prefer.getReturn().addResponseHeaders(servletResponse); 189 } 190 } 191 servletResponse.addHeader("Vary", "Accept, Range, Accept-Encoding, Accept-Language"); 192 193 return ok(outputStream).build(); 194 } 195 196 protected RdfStream getResourceTriples() { 197 return getResourceTriples(-1); 198 } 199 200 /** 201 * This method returns a stream of RDF triples associated with this target resource 202 * 203 * @param limit is the number of child resources returned in the response, -1 for all 204 * @return {@link RdfStream} 205 */ 206 protected RdfStream getResourceTriples(final int limit) { 207 // use the thing described, not the description, for the subject of descriptive triples 208 if (resource() instanceof NonRdfSourceDescription) { 209 resource = resource().getDescribedResource(); 210 } 211 final PreferTag returnPreference; 212 213 if (prefer != null && prefer.hasReturn()) { 214 returnPreference = prefer.getReturn(); 215 } else if (prefer != null && prefer.hasHandling()) { 216 returnPreference = prefer.getHandling(); 217 } else { 218 returnPreference = PreferTag.emptyTag(); 219 } 220 221 final LdpPreferTag ldpPreferences = new LdpPreferTag(returnPreference); 222 223 final Predicate<Triple> tripleFilter = ldpPreferences.prefersServerManaged() ? x -> true : 224 IS_MANAGED_TRIPLE.negate(); 225 226 final List<Stream<Triple>> streams = new ArrayList<>(); 227 228 229 if (returnPreference.getValue().equals("minimal")) { 230 streams.add(getTriples(of(PROPERTIES, MINIMAL)).filter(tripleFilter)); 231 232 if (ldpPreferences.prefersServerManaged()) { 233 streams.add(getTriples(of(SERVER_MANAGED, MINIMAL))); 234 } 235 } else { 236 streams.add(getTriples(PROPERTIES).filter(tripleFilter)); 237 238 // Additional server-managed triples about this resource 239 if (ldpPreferences.prefersServerManaged()) { 240 streams.add(getTriples(SERVER_MANAGED)); 241 } 242 243 // containment triples about this resource 244 if (ldpPreferences.prefersContainment()) { 245 if (limit == -1) { 246 streams.add(getTriples(LDP_CONTAINMENT)); 247 } else { 248 streams.add(getTriples(LDP_CONTAINMENT).limit(limit)); 249 } 250 } 251 252 // LDP container membership triples for this resource 253 if (ldpPreferences.prefersMembership()) { 254 streams.add(getTriples(LDP_MEMBERSHIP)); 255 } 256 257 // Include inbound references to this object 258 if (ldpPreferences.prefersReferences()) { 259 streams.add(getTriples(INBOUND_REFERENCES)); 260 } 261 262 // Embed the children of this object 263 if (ldpPreferences.prefersEmbed()) { 264 streams.add(getTriples(EMBED_RESOURCES)); 265 } 266 } 267 268 final RdfStream rdfStream = new DefaultRdfStream( 269 asNode(resource()), streams.stream().reduce(empty(), Stream::concat)); 270 271 if (httpTripleUtil != null && ldpPreferences.prefersServerManaged()) { 272 return httpTripleUtil.addHttpComponentModelsForResourceToStream(rdfStream, resource(), uriInfo, 273 translator()); 274 } 275 276 return rdfStream; 277 } 278 279 /** 280 * Get the binary content of a datastream 281 * 282 * @param rangeValue the range value 283 * @return Binary blob 284 * @throws IOException if io exception occurred 285 */ 286 protected Response getBinaryContent(final String rangeValue) 287 throws IOException { 288 final FedoraBinary binary = (FedoraBinary)resource(); 289 290 // we include an explicit etag, because the default behavior is to use the JCR node's etag, not 291 // the jcr:content node digest. The etag is only included if we are not within a transaction. 292 final String txId = TransactionServiceImpl.getCurrentTransactionId(session()); 293 if (txId == null) { 294 checkCacheControlHeaders(request, servletResponse, binary, session()); 295 } 296 final CacheControl cc = new CacheControl(); 297 cc.setMaxAge(0); 298 cc.setMustRevalidate(true); 299 Response.ResponseBuilder builder; 300 301 if (rangeValue != null && rangeValue.startsWith("bytes")) { 302 303 final Range range = Range.convert(rangeValue); 304 305 final long contentSize = binary.getContentSize(); 306 307 final String endAsString; 308 309 if (range.end() == -1) { 310 endAsString = Long.toString(contentSize - 1); 311 } else { 312 endAsString = Long.toString(range.end()); 313 } 314 315 final String contentRangeValue = 316 String.format("bytes %s-%s/%s", range.start(), 317 endAsString, contentSize); 318 319 if (range.end() > contentSize || 320 (range.end() == -1 && range.start() > contentSize)) { 321 322 builder = status(REQUESTED_RANGE_NOT_SATISFIABLE) 323 .header("Content-Range", contentRangeValue); 324 } else { 325 @SuppressWarnings("resource") 326 final RangeRequestInputStream rangeInputStream = 327 new RangeRequestInputStream(binary.getContent(), range.start(), range.size()); 328 329 builder = status(PARTIAL_CONTENT).entity(rangeInputStream) 330 .header("Content-Range", contentRangeValue); 331 } 332 333 } else { 334 @SuppressWarnings("resource") 335 final InputStream content = binary.getContent(); 336 builder = ok(content); 337 } 338 339 340 // we set the content-type explicitly to avoid content-negotiation from getting in the way 341 return builder.type(binary.getMimeType()) 342 .cacheControl(cc) 343 .build(); 344 345 } 346 347 protected RdfStream getTriples(final Set<? extends TripleCategory> x) { 348 return getTriples(resource(), x); 349 } 350 351 protected RdfStream getTriples(final FedoraResource resource, final Set<? extends TripleCategory> x) { 352 return resource.getTriples(translator(), x); 353 } 354 355 protected RdfStream getTriples(final TripleCategory x) { 356 return getTriples(resource(), x); 357 } 358 359 protected RdfStream getTriples(final FedoraResource resource, final TripleCategory x) { 360 return resource.getTriples(translator(), x); 361 } 362 363 protected URI getUri(final FedoraResource resource) { 364 try { 365 final String uri = translator().reverse().convert(resource).getURI(); 366 return new URI(uri); 367 } catch (final URISyntaxException e) { 368 throw new BadRequestException(e); 369 } 370 } 371 372 protected FedoraResource resource() { 373 if (resource == null) { 374 resource = getResourceFromPath(externalPath()); 375 } 376 return resource; 377 } 378 379 protected void addResourceLinkHeaders(final FedoraResource resource) { 380 addResourceLinkHeaders(resource, false); 381 } 382 383 protected void addResourceLinkHeaders(final FedoraResource resource, final boolean includeAnchor) { 384 if (resource instanceof NonRdfSourceDescription) { 385 final URI uri = getUri(resource.getDescribedResource()); 386 final Link link = Link.fromUri(uri).rel("describes").build(); 387 servletResponse.addHeader("Link", link.toString()); 388 } else if (resource instanceof FedoraBinary) { 389 final URI uri = getUri(resource.getDescription()); 390 final Link.Builder builder = Link.fromUri(uri).rel("describedby"); 391 392 if (includeAnchor) { 393 builder.param("anchor", getUri(resource).toString()); 394 } 395 servletResponse.addHeader("Link", builder.build().toString()); 396 } 397 } 398 399 /** 400 * Add any resource-specific headers to the response 401 * @param resource the resource 402 */ 403 protected void addResourceHttpHeaders(final FedoraResource resource) { 404 if (resource instanceof FedoraBinary) { 405 406 final FedoraBinary binary = (FedoraBinary)resource; 407 final ContentDisposition contentDisposition = ContentDisposition.type("attachment") 408 .fileName(binary.getFilename()) 409 .creationDate(binary.getCreatedDate()) 410 .modificationDate(binary.getLastModifiedDate()) 411 .size(binary.getContentSize()) 412 .build(); 413 414 servletResponse.addHeader("Content-Type", binary.getMimeType()); 415 servletResponse.addHeader("Content-Length", String.valueOf(binary.getContentSize())); 416 servletResponse.addHeader("Accept-Ranges", "bytes"); 417 servletResponse.addHeader("Content-Disposition", contentDisposition.toString()); 418 } 419 420 servletResponse.addHeader("Link", "<" + LDP_NAMESPACE + "Resource>;rel=\"type\""); 421 422 if (resource instanceof FedoraBinary) { 423 servletResponse.addHeader("Link", "<" + LDP_NAMESPACE + "NonRDFSource>;rel=\"type\""); 424 } else if (resource instanceof Container) { 425 servletResponse.addHeader("Link", "<" + CONTAINER.getURI() + ">;rel=\"type\""); 426 if (resource.hasType(LDP_BASIC_CONTAINER)) { 427 servletResponse.addHeader("Link", "<" + BASIC_CONTAINER.getURI() + ">;rel=\"type\""); 428 } else if (resource.hasType(LDP_DIRECT_CONTAINER)) { 429 servletResponse.addHeader("Link", "<" + DIRECT_CONTAINER.getURI() + ">;rel=\"type\""); 430 } else if (resource.hasType(LDP_INDIRECT_CONTAINER)) { 431 servletResponse.addHeader("Link", "<" + INDIRECT_CONTAINER.getURI() + ">;rel=\"type\""); 432 } else { 433 servletResponse.addHeader("Link", "<" + BASIC_CONTAINER.getURI() + ">;rel=\"type\""); 434 } 435 } else { 436 servletResponse.addHeader("Link", "<" + LDP_NAMESPACE + "RDFSource>;rel=\"type\""); 437 } 438 if (httpHeaderInject != null) { 439 httpHeaderInject.addHttpHeaderToResponseStream(servletResponse, uriInfo, resource()); 440 } 441 442 } 443 444 /** 445 * Evaluate the cache control headers for the request to see if it can be served from 446 * the cache. 447 * 448 * @param request the request 449 * @param servletResponse the servlet response 450 * @param resource the fedora resource 451 * @param session the session 452 */ 453 protected static void checkCacheControlHeaders(final Request request, 454 final HttpServletResponse servletResponse, 455 final FedoraResource resource, 456 final Session session) { 457 evaluateRequestPreconditions(request, servletResponse, resource, session, true); 458 addCacheControlHeaders(servletResponse, resource, session); 459 } 460 461 /** 462 * Add ETag and Last-Modified cache control headers to the response 463 * <p> 464 * Note: In this implementation, the HTTP headers for ETags and Last-Modified dates are swapped 465 * for fedora:Binary resources and their descriptions. Here, we are drawing a distinction between 466 * the HTTP resource and the LDP resource. As an HTTP resource, the last-modified header should 467 * reflect when the resource at the given URL was last changed. With fedora:Binary resources and 468 * their descriptions, this is a little complicated, for the descriptions have, as their subjects, 469 * the binary itself. And the fedora:lastModified property produced by that NonRdfSourceDescription 470 * refers to the last-modified date of the binary -- not the last-modified date of the 471 * NonRdfSourceDescription. 472 * </p> 473 * @param servletResponse the servlet response 474 * @param resource the fedora resource 475 * @param session the session 476 */ 477 protected static void addCacheControlHeaders(final HttpServletResponse servletResponse, 478 final FedoraResource resource, 479 final Session session) { 480 481 final String txId = TransactionServiceImpl.getCurrentTransactionId(session); 482 if (txId != null) { 483 // Do not add caching headers if in a transaction 484 return; 485 } 486 487 final EntityTag etag; 488 final Date date; 489 490 // See note about this code in the javadoc above. 491 if (resource instanceof FedoraBinary) { 492 // Use a strong ETag for LDP-NR 493 etag = new EntityTag(resource.getDescription().getEtagValue()); 494 date = resource.getDescription().getLastModifiedDate(); 495 } else { 496 // Use a weak ETag for the LDP-RS 497 etag = new EntityTag(resource.getDescribedResource().getEtagValue(), true); 498 date = resource.getDescribedResource().getLastModifiedDate(); 499 } 500 501 if (!etag.getValue().isEmpty()) { 502 servletResponse.addHeader("ETag", etag.toString()); 503 } 504 505 if (date != null) { 506 servletResponse.addDateHeader("Last-Modified", date.getTime()); 507 } 508 } 509 510 /** 511 * Evaluate request preconditions to ensure the resource is the expected state 512 * @param request the request 513 * @param servletResponse the servlet response 514 * @param resource the resource 515 * @param session the session 516 */ 517 protected static void evaluateRequestPreconditions(final Request request, 518 final HttpServletResponse servletResponse, 519 final FedoraResource resource, 520 final Session session) { 521 evaluateRequestPreconditions(request, servletResponse, resource, session, false); 522 } 523 524 @VisibleForTesting 525 static void evaluateRequestPreconditions(final Request request, 526 final HttpServletResponse servletResponse, 527 final FedoraResource resource, 528 final Session session, 529 final boolean cacheControl) { 530 531 final String txId = TransactionServiceImpl.getCurrentTransactionId(session); 532 if (txId != null) { 533 // Force cache revalidation if in a transaction 534 servletResponse.addHeader(CACHE_CONTROL, "must-revalidate"); 535 servletResponse.addHeader(CACHE_CONTROL, "max-age=0"); 536 return; 537 } 538 539 final EntityTag etag; 540 final Date date; 541 final Date roundedDate = new Date(); 542 543 // See the related note about the next block of code in the 544 // ContentExposingResource::addCacheControlHeaders method 545 if (resource instanceof FedoraBinary) { 546 // Use a strong ETag for the LDP-NR 547 etag = new EntityTag(resource.getDescription().getEtagValue()); 548 date = resource.getDescription().getLastModifiedDate(); 549 } else { 550 // Use a strong ETag for the LDP-RS when validating If-(None)-Match headers 551 etag = new EntityTag(resource.getDescribedResource().getEtagValue()); 552 date = resource.getDescribedResource().getLastModifiedDate(); 553 } 554 555 if (date != null) { 556 roundedDate.setTime(date.getTime() - date.getTime() % 1000); 557 } 558 559 Response.ResponseBuilder builder = request.evaluatePreconditions(etag); 560 if ( builder == null ) { 561 builder = request.evaluatePreconditions(roundedDate); 562 } 563 564 if (builder != null && cacheControl ) { 565 final CacheControl cc = new CacheControl(); 566 cc.setMaxAge(0); 567 cc.setMustRevalidate(true); 568 // here we are implicitly emitting a 304 569 // the exception is not an error, it's genuinely 570 // an exceptional condition 571 builder = builder.cacheControl(cc).lastModified(date).tag(etag); 572 } 573 if (builder != null) { 574 throw new WebApplicationException(builder.build()); 575 } 576 } 577 578 protected static MediaType getSimpleContentType(final MediaType requestContentType) { 579 return requestContentType != null ? new MediaType(requestContentType.getType(), requestContentType.getSubtype()) 580 : APPLICATION_OCTET_STREAM_TYPE; 581 } 582 583 protected static boolean isRdfContentType(final String contentTypeString) { 584 return contentTypeToLang(contentTypeString) != null; 585 } 586 587 protected void replaceResourceBinaryWithStream(final FedoraBinary result, 588 final InputStream requestBodyStream, 589 final ContentDisposition contentDisposition, 590 final MediaType contentType, 591 final String checksum) throws InvalidChecksumException { 592 final URI checksumURI = checksumURI(checksum); 593 final String originalFileName = contentDisposition != null ? contentDisposition.getFileName() : ""; 594 final String originalContentType = contentType != null ? contentType.toString() : ""; 595 596 result.setContent(requestBodyStream, 597 originalContentType, 598 checksumURI, 599 originalFileName, 600 storagePolicyDecisionPoint); 601 } 602 603 protected void replaceResourceWithStream(final FedoraResource resource, 604 final InputStream requestBodyStream, 605 final MediaType contentType, 606 final RdfStream resourceTriples) throws MalformedRdfException { 607 final Lang format = contentTypeToLang(contentType.toString()); 608 609 final Model inputModel = createDefaultModel(); 610 try { 611 inputModel.read(requestBodyStream, getUri(resource).toString(), format.getName().toUpperCase()); 612 613 } catch (final RiotException e) { 614 throw new BadRequestException("RDF was not parsable: " + e.getMessage(), e); 615 616 } catch (final RuntimeIOException e) { 617 if (e.getCause() instanceof JsonParseException) { 618 throw new MalformedRdfException(e.getCause()); 619 } 620 throw new RepositoryRuntimeException(e); 621 } 622 623 resource.replaceProperties(translator(), inputModel, resourceTriples); 624 } 625 626 protected void patchResourcewithSparql(final FedoraResource resource, 627 final String requestBody, 628 final RdfStream resourceTriples) { 629 resource.getDescribedResource().updateProperties(translator(), requestBody, resourceTriples); 630 } 631 632 /** 633 * Create a checksum URI object. 634 **/ 635 private static URI checksumURI( final String checksum ) { 636 if (!isBlank(checksum)) { 637 return URI.create(checksum); 638 } 639 return null; 640 } 641}