TestImageMetadata.java

/**
 * 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.nutch.tika;

import org.apache.nutch.protocol.ProtocolFactory;
import org.apache.nutch.protocol.Protocol;
import org.apache.nutch.protocol.Content;
import org.apache.nutch.protocol.ProtocolException;
import org.apache.nutch.parse.Parse;
import org.apache.nutch.parse.ParseUtil;
import org.apache.nutch.parse.ParseException;
import org.apache.hadoop.conf.Configuration;
import org.apache.nutch.util.NutchConfiguration;
import org.apache.hadoop.io.Text;
import org.apache.nutch.crawl.CrawlDatum;
import org.junit.Assert;
import org.junit.Test;

/**
 * Test extraction of image metadata
 */
public class TestImageMetadata {

  private String fileSeparator = System.getProperty("file.separator");
  // This system property is defined in ./src/plugin/build-plugin.xml
  private String sampleDir = System.getProperty("test.data", ".");
  // Make sure sample files are copied to "test.data" as specified in
  private String[] sampleFiles = { "nutch_logo_tm.gif", };

  @Test
  public void testIt() throws ProtocolException, ParseException {
    String urlString;
    Protocol protocol;
    Content content;
    Parse parse;

    for (int i = 0; i < sampleFiles.length; i++) {
      urlString = "file:" + sampleDir + fileSeparator + sampleFiles[i];

      Configuration conf = NutchConfiguration.create();
      protocol = new ProtocolFactory(conf).getProtocol(urlString);
      content = protocol.getProtocolOutput(new Text(urlString),
          new CrawlDatum()).getContent();
      parse = new ParseUtil(conf).parseByExtensionId("parse-tika", content)
          .get(content.getUrl());

      Assert.assertEquals("121", parse.getData().getMeta("width"));
      Assert.assertEquals("48", parse.getData().getMeta("height"));
    }
  }

}