Examples of org.openrdf.repository.event.base.InterceptingRepositoryConnectionWrapper

Package org.openrdf.repository.event.base

Examples of org.openrdf.repository.event.base.InterceptingRepositoryConnectionWrapper

org.openrdf.repository.event.base.InterceptingRepositoryConnectionWrapper
Wrapper that notifies interceptors of events on RepositoryConnections before they happen. Any interceptor can block the operation by returning true from the relevant notification method. To do so will also cause the notification process to stop, i.e. no other interceptors will be notified. The order in which interceptors are notified is unspecified. @author Herko ter Horst @author Arjohn Kampman @see InterceptingRepositoryWrapper


        Repository triples = new SailRepository(new MemoryStore());
        triples.initialize();


        InterceptingRepositoryConnection con =
                new InterceptingRepositoryConnectionWrapper(triples,triples.getConnection());


        con.addRepositoryConnectionInterceptor(new RepositoryConnectionInterceptorAdapter() {
            @Override
            public boolean add(RepositoryConnection conn, Resource s, org.openrdf.model.URI p, Value o, Resource... contexts) {
                if(s instanceof org.openrdf.model.URI) {
                    // if s is a URI and subject a KiWiUriResource, return true if they are different
                    return !((org.openrdf.model.URI)s).stringValue().equals(resource.stringValue());
                } else {
                    // in all other cases, return true to filter out the triple
                    return true;
                }
            };


            @Override
            public boolean remove(RepositoryConnection conn, Resource s, org.openrdf.model.URI p, Value o, Resource... contexts) {
                if(s instanceof org.openrdf.model.URI) {
                    // if s is a URI and subject a KiWiUriResource, return true if they are different
                    return !((org.openrdf.model.URI)s).stringValue().equals(resource.stringValue());
                } else {
                    // in all other cases, return true to filter out the triple
                    return true;
                }
            }
        });






        con.add(in,resource.stringValue(),format);
        con.commit();
        con.close();


        return triples;


    }

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     * @HTTP 404 resource or resource metadata not found
     */
    @DELETE
    public Response deleteMetaRemote(@QueryParam("uri") @NotNull String uri) throws UnsupportedEncodingException {
        try {
            InterceptingRepositoryConnection connection = new InterceptingRepositoryConnectionWrapper(sesameService.getRepository(), sesameService.getConnection());
            connection.begin();
            final Resource subject = connection.getValueFactory().createURI(uri);


            try {
                connection.addRepositoryConnectionInterceptor(new ResourceSubjectMetadata(subject));


                // delete all triples for given subject
                connection.remove(subject,null,null);


                return Response.ok().build();
            } finally {
                connection.commit();
                connection.close();
            }


        } catch (RepositoryException e) {
            return ResourceWebServiceHelper.buildErrorPage(uri, configurationService.getBaseUri(), Status.INTERNAL_SERVER_ERROR, e.getMessage(), configurationService, templatingService);
        }

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            if (request.getContentLength() == 0)
                return ResourceWebServiceHelper.buildErrorPage(uri, configurationService.getBaseUri(), Status.BAD_REQUEST, "content may not be empty in resource update", configurationService, templatingService);


            // a intercepting connection that filters out all triples that have
            // the wrong subject
            InterceptingRepositoryConnection connection = new InterceptingRepositoryConnectionWrapper(sesameService.getRepository(), sesameService.getConnection());
            //RepositoryConnection connection = sesameService.getConnection();
            try {
                connection.begin();
                final Resource subject = connection.getValueFactory().createURI(uri);


                connection.addRepositoryConnectionInterceptor(new ResourceSubjectMetadata(subject));


                // delete all triples for given subject
                connection.remove(subject, null, null, (Resource)null);


                // add RDF data from input to the suject
                connection.add(request.getReader(), configurationService.getBaseUri(), parser, contextService.getDefaultContext());
            } finally {
                connection.commit();
                connection.close();
            }
            return Response.ok().build();
        } catch (RepositoryException e) {
            return ResourceWebServiceHelper.buildErrorPage(uri, configurationService.getBaseUri(), Status.INTERNAL_SERVER_ERROR, e.getMessage(), configurationService, templatingService);
        } catch (IOException e) {

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    public List<String> parseResponse(final String resourceUri, String requestUrl, Repository triples, InputStream in, String contentType) throws DataRetrievalException {
        RDFFormat format = RDFParserRegistry.getInstance().getFileFormatForMIMEType(contentType, RDFFormat.RDFXML);


        try {
            InterceptingRepositoryConnection con =
                    new InterceptingRepositoryConnectionWrapper(triples,triples.getConnection());


            con.addRepositoryConnectionInterceptor(new RepositoryConnectionInterceptorAdapter() {
                @Override
                public boolean add(RepositoryConnection conn, Resource s, org.openrdf.model.URI p, Value o, Resource... contexts) {
                    if(s instanceof org.openrdf.model.URI) {
                        // if s is a URI and subject a KiWiUriResource, return true if they are different
                        return !s.stringValue().equals(resourceUri);
                    } else {
                        // in all other cases, return true to filter out the triple
                        return true;
                    }
                };


                @Override
                public boolean remove(RepositoryConnection conn, Resource s, org.openrdf.model.URI p, Value o, Resource... contexts) {
                    if(s instanceof org.openrdf.model.URI) {
                        // if s is a URI and subject a KiWiUriResource, return true if they are different
                        return !s.stringValue().equals(resourceUri);
                    } else {
                        // in all other cases, return true to filter out the triple
                        return true;
                    }
                }
            });


            con.add(in, resourceUri,format);
            con.commit();
            con.close();


            return Collections.emptyList();
        } catch (RepositoryException e) {
            throw new DataRetrievalException("error while initializing temporary RDF store",e);
        } catch (RDFParseException e) {

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     * @HTTP 404 resource or resource metadata not found
     */
    @DELETE
    public Response deleteMetaRemote(@QueryParam("uri") @NotNull String uri) throws UnsupportedEncodingException, HttpErrorException {
        try {
            InterceptingRepositoryConnection connection = new InterceptingRepositoryConnectionWrapper(sesameService.getRepository(), sesameService.getConnection());
            connection.begin();
            final Resource subject = connection.getValueFactory().createURI(uri);


            try {
                connection.addRepositoryConnectionInterceptor(new ResourceSubjectMetadata(subject));


                // delete all triples for given subject
                connection.remove(subject, null, null);


                return Response.ok().build();
            } finally {
                connection.commit();
                connection.close();
            }


        } catch (RepositoryException e) {
            throw new HttpErrorException(Status.INTERNAL_SERVER_ERROR, uri, e.getMessage());
        }

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                throw new HttpErrorException(Status.BAD_REQUEST, uri, "content may not be empty in resource update");
            }


            // a intercepting connection that filters out all triples that have
            // the wrong subject
            InterceptingRepositoryConnection connection = new InterceptingRepositoryConnectionWrapper(sesameService.getRepository(), sesameService.getConnection());
            //RepositoryConnection connection = sesameService.getConnection();
            try {
                connection.begin();
                final Resource subject = connection.getValueFactory().createURI(uri);


                connection.addRepositoryConnectionInterceptor(new ResourceSubjectMetadata(subject));


                // delete all triples for given subject
                connection.remove(subject, null, null, (Resource) null);


                // add RDF data from input to the suject
                connection.add(request.getReader(), configurationService.getBaseUri(), parser, contextService.getDefaultContext());
            } finally {
                connection.commit();
                connection.close();
            }
            return Response.ok().build();
        } catch (URISyntaxException e) {
            throw new HttpErrorException(Status.INTERNAL_SERVER_ERROR, uri, "invalid target context");
        } catch (IOException | RDFParseException e) {

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        Repository triples = new SailRepository(new MemoryStore());
        triples.initialize();


        InterceptingRepositoryConnection con =
                new InterceptingRepositoryConnectionWrapper(triples,triples.getConnection());


        con.addRepositoryConnectionInterceptor(new RepositoryConnectionInterceptorAdapter() {
            @Override
            public boolean add(RepositoryConnection conn, Resource s, org.openrdf.model.URI p, Value o, Resource... contexts) {
                if(s instanceof org.openrdf.model.URI) {
                    // if s is a URI and subject a KiWiUriResource, return true if they are different
                    return !((org.openrdf.model.URI)s).stringValue().equals(resource.stringValue());
                } else {
                    // in all other cases, return true to filter out the triple
                    return true;
                }
            };


            @Override
            public boolean remove(RepositoryConnection conn, Resource s, org.openrdf.model.URI p, Value o, Resource... contexts) {
                if(s instanceof org.openrdf.model.URI) {
                    // if s is a URI and subject a KiWiUriResource, return true if they are different
                    return !((org.openrdf.model.URI)s).stringValue().equals(resource.stringValue());
                } else {
                    // in all other cases, return true to filter out the triple
                    return true;
                }
            }
        });






        con.add(in,resource.stringValue(),format);
        con.commit();
        con.close();


        return triples;


    }

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     * @HTTP 404 resource or resource metadata not found
     */
    @DELETE
    public Response deleteMetaRemote(@QueryParam("uri") @NotNull String uri) throws UnsupportedEncodingException {
        try {
            InterceptingRepositoryConnection connection = new InterceptingRepositoryConnectionWrapper(sesameService.getRepository(), sesameService.getConnection());
            connection.begin();
            final Resource subject = connection.getValueFactory().createURI(uri);


            try {
                connection.addRepositoryConnectionInterceptor(new ResourceSubjectMetadata(subject));


                // delete all triples for given subject
                connection.remove(subject,null,null);


                return Response.ok().build();
            } finally {
                connection.commit();
                connection.close();
            }


        } catch (RepositoryException e) {
            return ResourceWebServiceHelper.buildErrorPage(uri, configurationService.getBaseUri(), Status.INTERNAL_SERVER_ERROR, e.getMessage(), configurationService, templatingService);
        }

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            if (request.getContentLength() == 0)
                return ResourceWebServiceHelper.buildErrorPage(uri, configurationService.getBaseUri(), Status.BAD_REQUEST, "content may not be empty in resource update", configurationService, templatingService);


            // a intercepting connection that filters out all triples that have
            // the wrong subject
            InterceptingRepositoryConnection connection = new InterceptingRepositoryConnectionWrapper(sesameService.getRepository(), sesameService.getConnection());
            //RepositoryConnection connection = sesameService.getConnection();
            try {
                connection.begin();
                final Resource subject = connection.getValueFactory().createURI(uri);


                connection.addRepositoryConnectionInterceptor(new ResourceSubjectMetadata(subject));


                // delete all triples for given subject
                connection.remove(subject, null, null, (Resource)null);


                // add RDF data from input to the suject
                connection.add(request.getReader(), configurationService.getBaseUri(), parser, contextService.getDefaultContext());
            } finally {
                connection.commit();
                connection.close();
            }
            return Response.ok().build();
        } catch (RepositoryException e) {
            return ResourceWebServiceHelper.buildErrorPage(uri, configurationService.getBaseUri(), Status.INTERNAL_SERVER_ERROR, e.getMessage(), configurationService, templatingService);
        } catch (IOException e) {

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