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

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

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/**   
 * License Agreement for OpenSearchServer
 *
 * Copyright (C) 2012-2014 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.util.List;

import org.apache.commons.lang.StringUtils;

import com.jaeksoft.searchlib.SearchLibException;
import com.jaeksoft.searchlib.index.FieldContent;
import com.jaeksoft.searchlib.index.IndexDocument;
import com.jaeksoft.searchlib.request.AbstractSearchRequest;
import com.jaeksoft.searchlib.result.ResultDocument;
import com.jaeksoft.searchlib.schema.FieldValueItem;

public class SourceField implements Comparable<SourceField> {

    final private String[] names;

    final private char separator;

    public SourceField(String name) {
        names = new String[1];
        names[0] = name;
        separator = '|';
    }

    public SourceField(String name, char separator) {
        names = StringUtils.split(name, separator);
        this.separator = separator;
    }

    @Override
    final public boolean equals(Object o) {
        if (!(o instanceof SourceField))
            return false;
        SourceField s2 = (SourceField) o;
        if (s2.names.length != names.length)
            return false;
        for (int i = 0; i < names.length; i++)
            if (!names[i].equals(s2.names[i]))
                return false;
        return true;
    }

    final public boolean contains(String source) {
        if (names == null || source == null)
            return false;
        for (String name : names)
            if (source.equals(name))
                return true;
        return false;
    }

    @Override
    final public int compareTo(SourceField o) {
        int l = names.length;
        if (o.names.length < l)
            l = o.names.length;
        for (int i = 0; i < l; i++) {
            int c = names[i].compareTo(o.names[i]);
            if (c != 0)
                return c;
        }
        return o.names.length - names.length;
    }

    final public String toXmlAttribute() {
        if (names.length == 1)
            return names[0];
        StringBuilder sb = new StringBuilder(names[0]);
        for (int i = 1; i < names.length; i++) {
            sb.append(separator);
            sb.append(names[i]);
        }
        return sb.toString();
    }

    final public boolean isUnique() {
        return names.length == 1;
    }

    final public String getUniqueName() {
        return names[0];
    }

    final public FieldContent getUniqueString(IndexDocument source) {
        return source.getField(names[0]);
    }

    final public List<FieldValueItem> getUniqueString(ResultDocument source) {
        return source.getValues(names[0]);
    }

    final public String getConcatString(IndexDocument source, IndexDocument target) {
        StringBuilder sb = new StringBuilder();
        for (String name : names) {
            FieldValueItem fvi = source.getFieldValue(name, 0);
            if (fvi == null)
                fvi = target.getFieldValue(name, 0);
            if (fvi != null) {
                String value = fvi.getValue();
                if (value != null) {
                    if (sb.length() != 0)
                        sb.append(separator);
                    sb.append(value);
                }
            }
        }
        return sb.length() == 0 ? null : sb.toString();
    }

    public String getConcatString(ResultDocument source, IndexDocument target) {
        StringBuilder sb = new StringBuilder();
        for (String name : names) {
            String value = source.getValueContent(name, 0);
            if (value == null) {
                FieldValueItem fvi = target.getFieldValue(name, 0);
                if (fvi != null)
                    value = fvi.getValue();
            }
            if (value != null) {
                if (sb.length() != 0)
                    sb.append(separator);
                sb.append(value);
            }
        }
        return sb.length() == 0 ? null : sb.toString();
    }

    public void addReturnField(AbstractSearchRequest searchRequest) throws SearchLibException {
        for (String name : names)
            searchRequest.addReturnField(name);
    }

}