de.tudarmstadt.ukp.dkpro.tc.core.feature.InstanceIdFeature.java Source code

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/*******************************************************************************
 * Copyright 2015
 * Ubiquitous Knowledge Processing (UKP) Lab
 * Technische Universitt Darmstadt
 * 
 * Licensed 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 de.tudarmstadt.ukp.dkpro.tc.core.feature;

import static de.tudarmstadt.ukp.dkpro.tc.core.Constants.ID_FEATURE_NAME;

import java.util.Arrays;

import org.apache.commons.lang.StringUtils;
import org.apache.uima.jcas.JCas;

import de.tudarmstadt.ukp.dkpro.core.api.metadata.type.DocumentMetaData;
import de.tudarmstadt.ukp.dkpro.tc.api.features.Feature;
import de.tudarmstadt.ukp.dkpro.tc.api.type.TextClassificationUnit;

public class InstanceIdFeature {

    public static Feature retrieve(JCas jcas) {
        return new Feature(ID_FEATURE_NAME, DocumentMetaData.get(jcas).getDocumentId());
    };

    public static Feature retrieve(JCas jcas, TextClassificationUnit unit) {

        String fullId = DocumentMetaData.get(jcas).getDocumentId();
        String[] parts = fullId.split("_");
        fullId = StringUtils.join(Arrays.copyOfRange(parts, 0, parts.length - 1), "_");

        fullId = fullId + "_" + unit.getId();

        String suffix = unit.getSuffix();
        if (suffix != null && suffix.length() > 0) {
            fullId = fullId + "_" + suffix;
        }

        return new Feature(ID_FEATURE_NAME, fullId);
    };

    public static Feature retrieve(JCas jcas, TextClassificationUnit unit, Integer sequenceId) {
        String fullId = DocumentMetaData.get(jcas).getDocumentId();
        String[] parts = fullId.split("_");
        fullId = StringUtils.join(Arrays.copyOfRange(parts, 0, parts.length - 1), "_");

        fullId = fullId + "_" + sequenceId;
        fullId = fullId + "_" + unit.getId();

        String suffix = unit.getSuffix();
        if (suffix != null && suffix.length() > 0) {
            fullId = fullId + "_" + suffix;
        }

        return new Feature(ID_FEATURE_NAME, fullId);
    };
}