afs commented on code in PR #3702: URL: https://github.com/apache/jena/pull/3702#discussion_r2705581171
########## jena-arq/src/main/java/org/apache/jena/riot/system/jsonld/JenaToTitanium.java: ########## @@ -0,0 +1,98 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * https://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + * SPDX-License-Identifier: Apache-2.0 + */ + +package org.apache.jena.riot.system.jsonld; + +import com.apicatalog.jsonld.JsonLd; +import com.apicatalog.jsonld.JsonLdError; +import com.apicatalog.jsonld.JsonLdOptions; +import com.apicatalog.jsonld.JsonLdVersion; +import com.apicatalog.jsonld.serialization.QuadsToJsonld; +import com.apicatalog.rdf.api.RdfConsumerException; +import jakarta.json.JsonArray; +import org.apache.jena.graph.Node; +import org.apache.jena.shared.JenaException; +import org.apache.jena.sparql.core.DatasetGraph; +import org.apache.jena.sparql.core.Quad; + +public class JenaToTitanium { + + static class JenaTitaniumException extends JenaException { + JenaTitaniumException(String msg) { super(msg); } + } + + /** Translates a Jena {@link DatasetGraph} to a JSON-LD document **/ + public static JsonArray convert(DatasetGraph dataset, JsonLdOptions opts) throws JsonLdError { + QuadsToJsonld consumer = JsonLd.fromRdf() + .options(opts) + .mode(JsonLdVersion.V1_1); + dataset.stream().forEach( quad->{ + String s = resource(quad.getSubject()); + String p = resource(quad.getPredicate()); + String g = resourceGraphName(quad.getGraph()); + Node obj = quad.getObject(); + + if ( obj.isURI() || obj.isBlank() ) { + String o = resource(obj); + try { + consumer.quad(s, p, o, null, null, null, g); + } catch (RdfConsumerException e) { + e.printStackTrace(); + } + } else if ( obj.isLiteral() ) { + String lex = obj.getLiteralLexicalForm(); + String datatype = obj.getLiteralDatatypeURI(); + String lang = obj.getLiteralLanguage(); + if ( lang.isEmpty() ) + lang = null; + String dir = null; + if ( obj.getLiteralBaseDirection() != null ) + dir = obj.getLiteralBaseDirection().toString(); + try { + consumer.quad(s, p, lex, datatype, lang, dir, g); + } catch (RdfConsumerException ex) { + throw new JenaException("Exception while translating to JSON-LD", ex); Review Comment: ```suggestion throw new JenaTitaniumException("Exception while translating to JSON-LD", ex); ``` ########## jena-arq/src/main/java/org/apache/jena/riot/system/jsonld/JenaToTitanium.java: ########## @@ -0,0 +1,98 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * https://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + * SPDX-License-Identifier: Apache-2.0 + */ + +package org.apache.jena.riot.system.jsonld; + +import com.apicatalog.jsonld.JsonLd; +import com.apicatalog.jsonld.JsonLdError; +import com.apicatalog.jsonld.JsonLdOptions; +import com.apicatalog.jsonld.JsonLdVersion; +import com.apicatalog.jsonld.serialization.QuadsToJsonld; +import com.apicatalog.rdf.api.RdfConsumerException; +import jakarta.json.JsonArray; +import org.apache.jena.graph.Node; +import org.apache.jena.shared.JenaException; +import org.apache.jena.sparql.core.DatasetGraph; +import org.apache.jena.sparql.core.Quad; + +public class JenaToTitanium { + + static class JenaTitaniumException extends JenaException { + JenaTitaniumException(String msg) { super(msg); } + } + + /** Translates a Jena {@link DatasetGraph} to a JSON-LD document **/ + public static JsonArray convert(DatasetGraph dataset, JsonLdOptions opts) throws JsonLdError { + QuadsToJsonld consumer = JsonLd.fromRdf() + .options(opts) + .mode(JsonLdVersion.V1_1); + dataset.stream().forEach( quad->{ + String s = resource(quad.getSubject()); + String p = resource(quad.getPredicate()); + String g = resourceGraphName(quad.getGraph()); + Node obj = quad.getObject(); + + if ( obj.isURI() || obj.isBlank() ) { + String o = resource(obj); + try { + consumer.quad(s, p, o, null, null, null, g); + } catch (RdfConsumerException e) { Review Comment: (yes, I know it was in the original code :-( ) Please convert to a JenaTitaniumException. -- This is an automated message from the Apache Git Service. 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