src/plugin/creativecommons/src/test/org/creativecommons/nutch/TestCCParseFilter.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.creativecommons.nutch;

import org.apache.avro.util.Utf8;
import org.apache.hadoop.conf.Configuration;
import org.apache.nutch.parse.ParseUtil;
import org.apache.nutch.storage.WebPage;
import org.apache.nutch.util.Bytes;
import org.apache.nutch.util.MimeUtil;
import org.apache.nutch.util.NutchConfiguration;
import org.junit.Test;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.nio.ByteBuffer;

import static org.junit.Assert.assertEquals;

public class TestCCParseFilter {

  private static final File testDir = new File(System.getProperty("test.input"));

  @Test
  public void testPages() throws Exception {
    pageTest(new File(testDir, "anchor.html"), "http://foo.com/",
        "http://creativecommons.org/licenses/by-nc-sa/1.0", "a", null);
    // Tika returns <a> whereas parse-html returns <rel>
    // check later
    pageTest(new File(testDir, "rel.html"), "http://foo.com/",
        "http://creativecommons.org/licenses/by-nc/2.0", "rel", null);
    // Tika returns <a> whereas parse-html returns <rdf>
    // check later
    pageTest(new File(testDir, "rdf.html"), "http://foo.com/",
        "http://creativecommons.org/licenses/by-nc/1.0", "rdf", "text");
  }

  public void pageTest(File file, String url, String license, String location,
      String type) throws Exception {

    InputStream in = new FileInputStream(file);
    ByteArrayOutputStream out = new ByteArrayOutputStream((int) file.length());
    byte[] buffer = new byte[1024];
    int i;
    while ((i = in.read(buffer)) != -1) {
      out.write(buffer, 0, i);
    }
    in.close();
    byte[] bytes = out.toByteArray();
    Configuration conf = NutchConfiguration.create();

    WebPage page = WebPage.newBuilder().build();
    page.setBaseUrl(new Utf8(url));
    page.setContent(ByteBuffer.wrap(bytes));
    MimeUtil mimeutil = new MimeUtil(conf);
    String mtype = mimeutil.getMimeType(file);
    page.setContentType(new Utf8(mtype));

    new ParseUtil(conf).parse(url, page);

    ByteBuffer bb = page.getMetadata().get(new Utf8("License-Url"));
    assertEquals(license, Bytes.toString(bb));
    bb = page.getMetadata().get(new Utf8("License-Location"));
    assertEquals(location, Bytes.toString(bb));
    bb = page.getMetadata().get(new Utf8("Work-Type"));
    assertEquals(type, Bytes.toString(bb));
  }
}