Java Code Examples for org.openrdf.rio.RDFFormat#forMIMEType()
The following examples show how to use
org.openrdf.rio.RDFFormat#forMIMEType() .
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Example 1
| Source File: OntologyLoader.java From anno4j with Apache License 2.0 | 5 votes |
|
private RDFFormat forMIMEType(String contentType, RDFFormat fallback) {
RDFFormat format = RDFFormat.forMIMEType(contentType);
RDFParserRegistry registry = RDFParserRegistry.getInstance();
if (format != null && registry.has(format))
return format;
return fallback;
}
Example 2
| Source File: UpdateServlet.java From database with GNU General Public License v2.0 | 5 votes |
|
private void processData(final BigdataSailConnection conn,
final String contentType,
final InputStream is,
final RDFHandler handler,
final String baseURI)
throws Exception {
/**
* Note: The request was already validated.
*
* <a href="https://sourceforge.net/apps/trac/bigdata/ticket/620">
* UpdateServlet fails to parse MIMEType when doing conneg. </a>
*/
final RDFFormat format = RDFFormat
.forMIMEType(new MiniMime(contentType).getMimeType());
final RDFParserFactory rdfParserFactory = RDFParserRegistry
.getInstance().get(format);
final RDFParser rdfParser = rdfParserFactory.getParser();
rdfParser.setValueFactory(conn.getTripleStore()
.getValueFactory());
rdfParser.setVerifyData(true);
rdfParser.setStopAtFirstError(true);
rdfParser
.setDatatypeHandling(RDFParser.DatatypeHandling.IGNORE);
rdfParser.setRDFHandler(handler);
/*
* Run the parser, which will cause statements to be deleted.
*/
rdfParser.parse(is, baseURI);
}
Example 3
| Source File: RepositoryModel.java From semweb4j with BSD 2-Clause "Simplified" License | 5 votes |
|
/**
* Resolves an RDF2Go {@link Syntax} to an OpenRDF {@link RDFFormat}.
*
* @param syntax The RDF2Go Syntax to resolve.
* @return A RDFFormat for the specified syntax.
* @throws SyntaxNotSupportedException When the Syntax could not be resolved to a
* RDFFormat.
*/
public static RDFFormat getRDFFormat(Syntax syntax) throws SyntaxNotSupportedException {
for (String mimeType : syntax.getMimeTypes()) {
RDFFormat format = RDFFormat.forMIMEType(mimeType);
if (format != null) {
return format;
}
}
throw new SyntaxNotSupportedException("This version of Sesame seems to have no "
+ "support for " + syntax);
}
Example 4
| Source File: RDFDataSetModule.java From mustard with MIT License | 5 votes |
|
/**
* RDFDataSet based on a single file
*
* @param filename
* @param mimetype
*/
public RDFDataSetModule(
@In(name="filename") String filename,
@In(name="mimetype") String mimetype,
@In(name="isUrl") Boolean isUrl) {
super();
this.filename = filename;
this.format = RDFFormat.forMIMEType(mimetype);
this.isUrl = isUrl;
}
Example 5
| Source File: InsertServlet.java From database with GNU General Public License v2.0 | 4 votes |
|
/**
* POST with request body containing statements to be inserted.
*
* @param req
* The request.
*
* @return The response.
*
* @throws Exception
*/
private void doPostWithBody(final HttpServletRequest req,
final HttpServletResponse resp) throws IOException {
final String baseURI = req.getRequestURL().toString();
final String contentType = req.getContentType();
if (contentType == null)
buildAndCommitResponse(resp, HTTP_BADREQUEST, MIME_TEXT_PLAIN,
"Content-Type not specified.");
if (log.isInfoEnabled())
log.info("Request body: " + contentType);
/**
* <a href="https://sourceforge.net/apps/trac/bigdata/ticket/620">
* UpdateServlet fails to parse MIMEType when doing conneg. </a>
*/
final String mimeTypeStr = new MiniMime(contentType).getMimeType();
final RDFFormat format = RDFFormat.forMIMEType(mimeTypeStr);
if (format == null) {
buildAndCommitResponse(resp, HTTP_BADREQUEST, MIME_TEXT_PLAIN,
"Content-Type not recognized as RDF: " + contentType);
return;
}
if (log.isInfoEnabled())
log.info("RDFFormat=" + format);
final RDFParserFactory rdfParserFactory = RDFParserRegistry
.getInstance().get(format);
if (rdfParserFactory == null) {
buildAndCommitResponse(resp, HTTP_INTERNALERROR, MIME_TEXT_PLAIN,
"Parser factory not found: Content-Type=" + contentType
+ ", format=" + format);
return;
}
/*
* Allow the caller to specify the default contexts.
*/
final Resource[] defaultContext;
{
final String[] s = req.getParameterValues(BigdataRDFContext.CONTEXT_URI);
if (s != null && s.length > 0) {
try {
defaultContext = toURIs(s);
} catch (IllegalArgumentException ex) {
buildAndCommitResponse(resp, HTTP_INTERNALERROR, MIME_TEXT_PLAIN,
ex.getLocalizedMessage());
return;
}
} else {
defaultContext = new Resource[0];
}
}
try {
submitApiTask(
new InsertWithBodyTask(req, resp, getNamespace(req),
ITx.UNISOLATED, baseURI, defaultContext,
rdfParserFactory)).get();
} catch (Throwable t) {
BigdataRDFServlet.launderThrowable(t, resp,
"INSERT-WITH-BODY: baseURI=" + baseURI + ", Content-Type="
+ contentType + ", " + BigdataRDFContext.CONTEXT_URI + "="
+ Arrays.toString(defaultContext));
}
}
Example 6
| Source File: DeleteServlet.java From database with GNU General Public License v2.0 | 4 votes |
|
/**
* DELETE request with a request body containing the statements to be
* removed.
*/
private void doDeleteWithBody(final HttpServletRequest req,
final HttpServletResponse resp) throws IOException {
final String baseURI = req.getRequestURL().toString();
final String contentType = req.getContentType();
final boolean suppressTruthMaintenance = getBooleanValue(req, QueryServlet.ATTR_TRUTH_MAINTENANCE, false);
if (contentType == null)
throw new UnsupportedOperationException();
if (log.isInfoEnabled())
log.info("Request body: " + contentType);
/**
* There is a request body, so let's try and parse it.
*
* <a href="https://sourceforge.net/apps/trac/bigdata/ticket/620">
* UpdateServlet fails to parse MIMEType when doing conneg. </a>
*/
final RDFFormat format = RDFFormat.forMIMEType(new MiniMime(
contentType).getMimeType());
if (format == null) {
buildAndCommitResponse(resp, HTTP_BADREQUEST, MIME_TEXT_PLAIN,
"Content-Type not recognized as RDF: " + contentType);
return;
}
final RDFParserFactory rdfParserFactory = RDFParserRegistry
.getInstance().get(format);
if (rdfParserFactory == null) {
buildAndCommitResponse(resp, HTTP_INTERNALERROR, MIME_TEXT_PLAIN,
"Parser factory not found: Content-Type=" + contentType
+ ", format=" + format);
return;
}
/*
* Allow the caller to specify the default contexts.
*/
final Resource[] defaultContext;
{
final String[] s = req.getParameterValues("context-uri");
if (s != null && s.length > 0) {
try {
defaultContext = toURIs(s);
} catch (IllegalArgumentException ex) {
buildAndCommitResponse(resp, HTTP_INTERNALERROR, MIME_TEXT_PLAIN,
ex.getLocalizedMessage());
return;
}
} else {
defaultContext = new Resource[0];
}
}
try {
submitApiTask(
new DeleteWithBodyTask(req, resp, getNamespace(req),
ITx.UNISOLATED, baseURI, suppressTruthMaintenance, defaultContext,
rdfParserFactory)).get();
} catch (Throwable t) {
BigdataRDFServlet.launderThrowable(t, resp,
"DELETE-WITH-BODY: baseURI=" + baseURI + ", context-uri="
+ Arrays.toString(defaultContext));
}
}
Example 7
| Source File: HttpProtocol.java From cumulusrdf with Apache License 2.0 | 4 votes |
|
/**
* <p>Retrieves the MIME type for the content-type parameter.
* The content-type parameter could be specified by the client as a parameter or
* a header in the HTTP request.
* HTTP header has a higher priority.</p>
* <p> Default (if no content-type parameter is given): RDF/XML.</p>
*
* @param request - the HTTP request.
* @return MIME type of the content-type parameter.
*/
public static String parseContentTypeHeader(final HttpServletRequest request) {
String content_type = request.getHeader(Headers.CONTENT_TYPE);
if (isNullOrEmptyString(content_type)) {
content_type = getParameterValue(request, Parameters.CONTENT_TYPE);
}
if (isNotNullOrEmptyString(content_type)) {
content_type = content_type.trim().toLowerCase();
}
if (RDFFormat.forMIMEType(content_type) == null) {
/*
* default: MimeTypes.RDF_XML
*/
if ((content_type == null) || content_type.isEmpty()) {
content_type = MimeTypes.RDF_XML;
}
/*
* guess MIME type
*/
else if (content_type.contains("htm")) {
content_type = MimeTypes.TEXT_HTML;
} else if (content_type.contains("xml")) {
content_type = MimeTypes.RDF_XML;
} else if (content_type.contains("rdf+json")) {
content_type = MimeTypes.RDF_JSON;
} else if (content_type.contains("json")) {
content_type = MimeTypes.JSON_LD;
} else if (content_type.contains("trix")) {
content_type = MimeTypes.TRIX;
} else if (content_type.contains("trig")) {
content_type = MimeTypes.TRIG;
} else if (content_type.contains("n3")) {
content_type = MimeTypes.N3;
} else if (content_type.contains("turtle") || content_type.contains("ttl")) {
content_type = MimeTypes.TURTLE;
} else if (content_type.contains("triple")) {
content_type = MimeTypes.TEXT_PLAIN;
} else if (content_type.contains("quad")) {
content_type = MimeTypes.N_QUADS;
} else if (content_type.contains("plain")) {
content_type = MimeTypes.TEXT_PLAIN;
} else if (content_type.contains("binary")) {
content_type = MimeTypes.BINARY;
}
/*
* default: RDF/XML
*/
else {
content_type = MimeTypes.RDF_XML;
}
}
return content_type;
}
Example 8
| Source File: UpdateServlet.java From database with GNU General Public License v2.0 | 2 votes |
|
private boolean validateItem(
final HttpServletResponse resp, final FileItem item)
throws IOException {
final String contentType = item.getContentType();
if (contentType == null) {
buildAndCommitResponse(resp, HTTP_BADREQUEST, MIME_TEXT_PLAIN,
"Content-Type not specified");
return false;
}
final RDFFormat format = RDFFormat
.forMIMEType(new MiniMime(contentType).getMimeType());
if (format == null) {
buildAndCommitResponse(resp, HTTP_BADREQUEST, MIME_TEXT_PLAIN,
"Content-Type not recognized as RDF: " + contentType);
return false;
}
final RDFParserFactory rdfParserFactory = RDFParserRegistry
.getInstance().get(format);
if (rdfParserFactory == null) {
buildAndCommitResponse(resp, HTTP_INTERNALERROR, MIME_TEXT_PLAIN,
"Parser factory not found: Content-Type=" + contentType
+ ", format=" + format);
return false;
}
if (item.getInputStream() == null) {
buildAndCommitResponse(resp, HTTP_BADREQUEST, MIME_TEXT_PLAIN,
"No content");
return false;
}
return true;
}
Example 9
| Source File: WorkbenchServlet.java From database with GNU General Public License v2.0 | 2 votes |
|
/**
* Convert RDF data from one format to another.
*/
private void doConvert(final HttpServletRequest req,
final HttpServletResponse resp) throws IOException {
final String baseURI = req.getRequestURL().toString();
// The content type of the request.
final String contentType = req.getContentType();
if (log.isInfoEnabled())
log.info("Request body: " + contentType);
/**
* <a href="https://sourceforge.net/apps/trac/bigdata/ticket/620">
* UpdateServlet fails to parse MIMEType when doing conneg. </a>
*/
final RDFFormat requestBodyFormat = RDFFormat.forMIMEType(new MiniMime(
contentType).getMimeType());
if (requestBodyFormat == null) {
buildAndCommitResponse(resp, HTTP_BADREQUEST, MIME_TEXT_PLAIN,
"Content-Type not recognized as RDF: " + contentType);
return;
}
final RDFParserFactory rdfParserFactory = RDFParserRegistry
.getInstance().get(requestBodyFormat);
if (rdfParserFactory == null) {
buildAndCommitResponse(resp, HTTP_INTERNALERROR, MIME_TEXT_PLAIN,
"Parser factory not found: Content-Type="
+ contentType + ", format=" + requestBodyFormat);
return;
}
// final String s= IOUtil.readString(req.getInputStream());
// System.err.println(s);
final Graph g = new LinkedHashModel();
try {
/*
* There is a request body, so let's try and parse it.
*/
final RDFParser rdfParser = rdfParserFactory
.getParser();
rdfParser.setValueFactory(new ValueFactoryImpl());
rdfParser.setVerifyData(true);
rdfParser.setStopAtFirstError(true);
rdfParser
.setDatatypeHandling(RDFParser.DatatypeHandling.IGNORE);
rdfParser.setRDFHandler(new StatementCollector(g));
/*
* Run the parser, which will cause statements to be
* inserted.
*/
rdfParser.parse(req.getInputStream(), baseURI);
/*
* Send back the graph using CONNEG to decide the MIME Type of the
* response.
*/
sendGraph(req, resp, g);
} catch (Throwable t) {
BigdataRDFServlet.launderThrowable(t, resp, null);
}
}
