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1   /*
2    * Licensed to The Apereo Foundation under one or more contributor license
3    * agreements. See the NOTICE file distributed with this work for additional
4    * information regarding copyright ownership.
5    *
6    *
7    * The Apereo Foundation licenses this file to you under the Educational
8    * Community License, Version 2.0 (the "License"); you may not use this file
9    * except in compliance with the License. You may obtain a copy of the License
10   * at:
11   *
12   *   http://opensource.org/licenses/ecl2.txt
13   *
14   * Unless required by applicable law or agreed to in writing, software
15   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
16   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
17   * License for the specific language governing permissions and limitations under
18   * the License.
19   *
20   */
21  
22  
23  package org.opencastproject.textanalyzer.api;
24  
25  import org.opencastproject.job.api.Job;
26  import org.opencastproject.mediapackage.Attachment;
27  import org.opencastproject.mediapackage.MediaPackageException;
28  
29  /**
30   * Api for text analysis implementations, aimed at extracting text from an image.
31   */
32  public interface TextAnalyzerService {
33  
34    /** Receipt type */
35    String JOB_TYPE = "org.opencastproject.textanalyzer";
36  
37    /** The operation type */
38    String OPERATION = "extract";
39  
40    /**
41     * Takes the given image and returns a receipt that can be used to get the resulting catalog.
42     *
43     * @param image
44     *          element to analyze
45     * @return the metadata
46     * @throws TextAnalyzerException
47     *           if the text in this image can not be analyzed
48     * @throws MediaPackageException
49     *           if this attachment is not valid
50     */
51    Job extract(Attachment image) throws TextAnalyzerException, MediaPackageException;
52  
53  }