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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 = {
    37          "vocab" }, commandDescription = "Prints out the RDF Schema of the vocabularies used by Any23.")
    38  public class VocabPrinter extends BaseTool {
    39
    40      @Parameter(names = { "-f",
    41              "--format" }, description = "Vocabulary output format", converter = RDFFormatConverter.class)
    42      private RDFFormat format = RDFFormat.NQUADS;
    43
    44      private PrintStream out = System.out;
    45
    46      @Override
    47      PrintStream getOut() {
    48          return out;
    49      }
    50
    51      @Override
    52      void setOut(PrintStream out) {
    53          this.out = out;
    54      }
    55
    56      public void run() throws Exception {
    57          RDFSchemaUtils.serializeVocabularies(format, out);
    58      }
    59
    60      public static final class RDFFormatConverter implements IStringConverter<RDFFormat> {
    61
    62          @Override
    63          public RDFFormat convert(String value) {
    64              return RDFWriterRegistry.getInstance().getFileFormatForMIMEType(value)
    65                      .orElseThrow(Rio.unsupportedFormat(value));
    66          }
    67
    68      }
    69
    70  }