gate.creole.ir.FeatureReader Maven / Gradle / Ivy

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GATE - general achitecture for text engineering - is open source software capable of solving almost any text processing problem. This artifact enables you to embed the core GATE Embedded with its essential dependencies. You will able to use the GATE Embedded API and load and store GATE XML documents. This artifact is the perfect dependency for CREOLE plugins or for applications that need to customize the GATE dependencies due to confict with their own dependencies or for lower footprint.

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/*
 *  Copyright (c) 1995-2012, The University of Sheffield. See the file
 *  COPYRIGHT.txt in the software or at http://gate.ac.uk/gate/COPYRIGHT.txt
 *
 *  This file is part of GATE (see http://gate.ac.uk/), and is free
 *  software, licenced under the GNU Library General Public License,
 *  Version 2, June 1991 (in the distribution as file licence.html,
 *  and also available at http://gate.ac.uk/gate/licence.html).
 *
 *  Valentin Tablan 17/05/2002
 *
 *  $Id: FeatureReader.java 17530 2014-03-04 15:57:43Z markagreenwood $
 *
 */
package gate.creole.ir;

import gate.Document;

/**
 * A property reader for a document feature
 */
public class FeatureReader implements PropertyReader {

  public FeatureReader(String featureName){
    this.featureName = featureName;
  }

  @Override
  public String getPropertyValue(Document doc) {
    if(doc.getFeatures() != null){
      Object value = doc.getFeatures().get(featureName);
      if(value != null) return value.toString();
    }
    return "";
  }

  String featureName;
  static final long serialVersionUID = -2831603184521440396L;
}