com.jaeksoft.searchlib.util.map.TargetField.java Source code

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Here is the source code for com.jaeksoft.searchlib.util.map.TargetField.java

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/**   
 * License Agreement for OpenSearchServer
 *
 * Copyright (C) 2010-2014 Emmanuel Keller / Jaeksoft
 * 
 * http://www.open-search-server.com
 * 
 * This file is part of OpenSearchServer.
 *
 * OpenSearchServer is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 * OpenSearchServer is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with OpenSearchServer. 
 *  If not, see <http://www.gnu.org/licenses/>.
 **/

package com.jaeksoft.searchlib.util.map;

import java.io.IOException;
import java.util.List;

import org.apache.commons.lang3.StringUtils;
import org.w3c.dom.Node;

import com.jaeksoft.searchlib.SearchLibException;
import com.jaeksoft.searchlib.analysis.Analyzer;
import com.jaeksoft.searchlib.analysis.AnalyzerList;
import com.jaeksoft.searchlib.analysis.CompiledAnalyzer;
import com.jaeksoft.searchlib.analysis.LanguageEnum;
import com.jaeksoft.searchlib.index.FieldContent;
import com.jaeksoft.searchlib.index.IndexDocument;
import com.jaeksoft.searchlib.schema.FieldValueItem;
import com.jaeksoft.searchlib.schema.FieldValueOriginEnum;
import com.jaeksoft.searchlib.util.DomUtils;

public class TargetField implements Comparable<TargetField> {

    private String name;

    private String analyzer;

    private CompiledAnalyzer cachedAnalyzer;

    private Float queryBoost;

    private String boostedName;

    public TargetField(String name, String analyzer, Float queryBoost, String boostedName) {
        this.name = name;
        this.analyzer = analyzer;
        this.cachedAnalyzer = null;
        this.queryBoost = queryBoost;
        this.boostedName = boostedName;
    }

    public TargetField(String name) {
        this(name, (String) null, null, null);
    }

    public TargetField(String name, Node node) {
        this(name, DomUtils.getAttributeText(node, "analyzer"), DomUtils.getAttributeFloat(node, "boost"), null);
    }

    /**
     * @return the name
     */
    final public String getName() {
        return name;
    }

    /**
     * @param name
     *            the name to set
     */
    final public void setName(String name) {
        this.name = name;
    }

    @Override
    final public String toString() {
        return name;
    }

    final public String toXmlAttribute() {
        return name;
    }

    @Override
    final public boolean equals(Object o) {
        if (o == null)
            return false;
        if (!(o instanceof TargetField))
            return false;
        TargetField tf = (TargetField) o;
        return StringUtils.equals(tf.name, this.name);
    }

    @Override
    final public int compareTo(TargetField o) {
        return name.compareTo(o.name);
    }

    /**
     * @return the analyzer
     */
    final public String getAnalyzer() {
        return analyzer;
    }

    /**
     * @param analyzer
     *            the analyzer to set
     */
    final public void setAnalyzer(String analyzer) {
        this.analyzer = analyzer;
        this.cachedAnalyzer = null;
    }

    /**
     * @return the boost
     */
    public Float getBoost() {
        return queryBoost;
    }

    /**
     * @param boost
     *            the boost to set
     */
    public void setBoost(Float boost) {
        this.queryBoost = boost;
        this.boostedName = null;
    }

    final public void setCachedAnalyzer(AnalyzerList analyzerList, LanguageEnum lang) throws SearchLibException {
        cachedAnalyzer = null;
        if (analyzer == null)
            return;
        Analyzer a = analyzerList.get(analyzer, lang);
        if (a == null)
            a = analyzerList.get(analyzer, null);
        if (a == null)
            return;
        cachedAnalyzer = a.getIndexAnalyzer();
    }

    public void addFieldValueItems(List<FieldValueItem> fieldValueItems, IndexDocument document)
            throws IOException {
        if (fieldValueItems == null)
            return;
        FieldContent fc = document.getFieldContent(getBoostedName());
        if (cachedAnalyzer == null) {
            for (FieldValueItem fvi : fieldValueItems)
                fc.add(fvi);
        } else {
            for (FieldValueItem fvi : fieldValueItems)
                cachedAnalyzer.populate(fvi.getValue(), fc);
        }
    }

    public void addValue(String value, IndexDocument document) throws IOException {
        if (value == null)
            return;
        FieldContent fc = document.getFieldContent(getBoostedName());
        if (cachedAnalyzer == null)
            fc.add(new FieldValueItem(FieldValueOriginEnum.EXTERNAL, value, null));
        else
            cachedAnalyzer.populate(value, fc);
    }

    public void addValues(List<String> values, IndexDocument document) throws IOException {
        if (values == null)
            return;
        FieldContent fc = document.getFieldContent(getBoostedName());
        if (cachedAnalyzer == null) {
            for (String value : values)
                fc.add(new FieldValueItem(FieldValueOriginEnum.EXTERNAL, value, null));
        } else {
            for (String value : values)
                cachedAnalyzer.populate(value, fc);
        }
    }

    public String getBoostedName() {
        if (boostedName != null)
            return boostedName;
        if (queryBoost == null || queryBoost == 1.0F) {
            boostedName = name;
        } else {
            StringBuilder sb = new StringBuilder("data_");
            sb.append(queryBoost);
            boostedName = sb.toString();
        }
        return boostedName;
    }

}