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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *  http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  
18  package org.apache.any23.cli;
19  
20  import org.apache.any23.vocab.RDFSchemaUtils;
21  import org.eclipse.rdf4j.rio.RDFFormat;
22  import org.eclipse.rdf4j.rio.RDFWriterRegistry;
23  import org.eclipse.rdf4j.rio.Rio;
24  
25  import com.beust.jcommander.IStringConverter;
26  import com.beust.jcommander.Parameter;
27  import com.beust.jcommander.Parameters;
28  
29  import java.io.PrintStream;
30  
31  /**
32   * Prints out the vocabulary <i>RDFSchema</i> as <i>NQuads</i>.
33   * 
34   * @author Michele Mostarda (mostarda@fbk.eu)
35   */
36  @Parameters(commandNames = { "vocab" }, commandDescription = "Prints out the RDF Schema of the vocabularies used by Any23.")
37  public class VocabPrinter extends BaseTool {
38  
39      @Parameter(names = { "-f", "--format" }, description = "Vocabulary output format", converter = RDFFormatConverter.class)
40      private RDFFormat format = RDFFormat.NQUADS;
41  
42      private PrintStream out = System.out;
43  
44      @Override
45      PrintStream getOut() {
46          return out;
47      }
48  
49      @Override
50      void setOut(PrintStream out) {
51          this.out = out;
52      }
53  
54      public void run() throws Exception {
55          RDFSchemaUtils.serializeVocabularies(format, out);
56      }
57  
58      public static final class RDFFormatConverter implements
59              IStringConverter<RDFFormat> {
60  
61          @Override
62          public RDFFormat convert(String value) {
63          	return RDFWriterRegistry.getInstance().getFileFormatForMIMEType(value).orElseThrow(Rio.unsupportedFormat(value));
64          }
65  
66      }
67  
68  }