| /** |
| * 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 |
| * |
| * http://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. |
| */ |
| |
| package org.apache.jena.riot.lang; |
| |
| import static org.apache.jena.riot.RDFLanguages.N3; |
| import static org.apache.jena.riot.RDFLanguages.NQUADS; |
| import static org.apache.jena.riot.RDFLanguages.NTRIPLES; |
| import static org.apache.jena.riot.RDFLanguages.RDFJSON; |
| import static org.apache.jena.riot.RDFLanguages.TRIG; |
| import static org.apache.jena.riot.RDFLanguages.TURTLE; |
| |
| import java.io.InputStream; |
| import java.io.Reader; |
| import java.util.Iterator; |
| |
| import org.apache.jena.atlas.io.PeekReader; |
| import org.apache.jena.atlas.json.io.parser.TokenizerJSON; |
| import org.apache.jena.graph.Triple; |
| import org.apache.jena.riot.Lang; |
| import org.apache.jena.riot.RDFLanguages; |
| import org.apache.jena.riot.system.*; |
| import org.apache.jena.riot.tokens.Tokenizer; |
| import org.apache.jena.riot.tokens.TokenizerFactory; |
| import org.apache.jena.sparql.core.Quad; |
| |
| /** Use RDFDataMgr operations. |
| * |
| * <b>This class is internal to RIOT.</b> |
| */ |
| public class RiotParsers { |
| // package statics -- for the tests to create exactly what they test. |
| private RiotParsers() {} |
| |
| /** InputStream input */ |
| public static LangRIOT createParser(InputStream input, Lang lang, StreamRDF dest, ParserProfile profile) { |
| if ( RDFLanguages.sameLang(RDFJSON, lang) ) { |
| Tokenizer tokenizer = new TokenizerJSON(PeekReader.makeUTF8(input)); |
| return createParserRdfJson(tokenizer, dest, profile); |
| } |
| Tokenizer tokenizer = TokenizerFactory.makeTokenizerUTF8(input, profile.getErrorHandler()); |
| if ( RDFLanguages.sameLang(TURTLE, lang) || RDFLanguages.sameLang(N3, lang) ) |
| return createParserTurtle(tokenizer, dest, profile); |
| if ( RDFLanguages.sameLang(NTRIPLES, lang) ) |
| return createParserNTriples(tokenizer, dest, profile); |
| if ( RDFLanguages.sameLang(NQUADS, lang) ) |
| return createParserNQuads(tokenizer, dest, profile); |
| if ( RDFLanguages.sameLang(TRIG, lang) ) |
| return createParserTriG(tokenizer, dest, profile); |
| return null; |
| } |
| |
| /** Reader input */ |
| public static LangRIOT createParser(Reader input, Lang lang, StreamRDF dest, ParserProfile profile) { |
| if ( RDFLanguages.sameLang(RDFJSON, lang) ) { |
| Tokenizer tokenizer = new TokenizerJSON(PeekReader.make(input)); |
| return createParserRdfJson(tokenizer, dest, profile); |
| } |
| |
| @SuppressWarnings("deprecation") |
| Tokenizer tokenizer = TokenizerFactory.makeTokenizer(input, profile.getErrorHandler()); |
| if ( RDFLanguages.sameLang(TURTLE, lang) || RDFLanguages.sameLang(N3, lang) ) |
| return createParserTurtle(tokenizer, dest, profile); |
| if ( RDFLanguages.sameLang(NTRIPLES, lang) ) |
| return createParserNTriples(tokenizer, dest, profile); |
| if ( RDFLanguages.sameLang(NQUADS, lang) ) |
| return createParserNQuads(tokenizer, dest, profile); |
| if ( RDFLanguages.sameLang(TRIG, lang) ) |
| return createParserTriG(tokenizer, dest, profile); |
| return null; |
| } |
| |
| public /* For Elephas */ |
| /*package*/ static LangNTriples createParserNTriples(Tokenizer tokenizer, StreamRDF dest, ParserProfile profile) { |
| LangNTriples parser = new LangNTriples(tokenizer, profile, dest); |
| return parser; |
| } |
| |
| public /* For Elephas */ |
| /*package*/ static LangNQuads createParserNQuads(Tokenizer tokenizer, StreamRDF dest, ParserProfile profile) { |
| LangNQuads parser = new LangNQuads(tokenizer, profile, dest); |
| return parser; |
| } |
| |
| /*package*/ static LangTurtle createParserTurtle(Tokenizer tokenizer, StreamRDF dest, ParserProfile profile) { |
| LangTurtle parser = new LangTurtle(tokenizer, profile, dest); |
| return parser; |
| } |
| |
| /*package*/ static LangTriG createParserTriG(Tokenizer tokenizer, StreamRDF dest, ParserProfile profile) { |
| LangTriG parser = new LangTriG(tokenizer, profile, dest); |
| return parser; |
| } |
| |
| /*package*/ static LangRDFJSON createParserRdfJson(Tokenizer tokenizer, StreamRDF dest, ParserProfile profile) { |
| LangRDFJSON parser = new LangRDFJSON(tokenizer, profile, dest); |
| return parser; |
| } |
| |
| /** Create an iterator for parsing N-Triples. */ |
| public static Iterator<Triple> createIteratorNTriples(InputStream input, StreamRDF dest) { |
| return createIteratorNTriples(input, dest, RiotLib.dftProfile()); |
| } |
| |
| /** Create an iterator for parsing N-Triples. */ |
| public static Iterator<Triple> createIteratorNTriples(InputStream input, StreamRDF dest, ParserProfile profile) { |
| // LangNTriples supports iterator use. |
| Tokenizer tokenizer = TokenizerFactory.makeTokenizerUTF8(input, profile.getErrorHandler()); |
| return createParserNTriples(tokenizer, null, profile); |
| } |
| |
| /** Create an iterator for parsing N-Quads. */ |
| public static Iterator<Quad> createIteratorNQuads(InputStream input, StreamRDF dest) { |
| return createIteratorNQuads(input, dest, RiotLib.dftProfile()); |
| } |
| |
| /** Create an iterator for parsing N-Quads. */ |
| public static Iterator<Quad> createIteratorNQuads(InputStream input, StreamRDF dest, ParserProfile profile) { |
| // LangNQuads supports iterator use. |
| Tokenizer tokenizer = TokenizerFactory.makeTokenizerUTF8(input, profile.getErrorHandler()); |
| return createParserNQuads(tokenizer, null, profile); |
| } |
| } |
| |