MatricesReaderMatsimV1.java

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/* *********************************************************************** *
 * project: org.matsim.*
 * MatricesReaderMatsimV1.java
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 * copyright       : (C) 2007 by the members listed in the COPYING,        *
 *                   LICENSE and WARRANTY file.                            *
 * email           : info at matsim dot org                                *
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 *   This program 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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *   See also COPYING, LICENSE and WARRANTY file                           *
 *                                                                         *
 * *********************************************************************** */

package org.matsim.matrices;

import java.util.Stack;

import org.matsim.core.utils.io.MatsimXmlParser;
import org.xml.sax.Attributes;

public class MatricesReaderMatsimV1<T> extends MatsimXmlParser {

    private final static String MATRICES = "matrices";
    private final static String MATRIX = "matrix";
    private final static String ENTRY = "entry";

    private Matrices matrices;
    private Matrix currMatrix = null;

    public MatricesReaderMatsimV1(final Matrices matrices) {
        super(ValidationType.DTD_ONLY);
        this.matrices = matrices;
    }

    @Override
    public void startTag(final String name, final Attributes atts, final Stack<String> context) {
        if (MATRICES.equals(name)) {
            startMatrices(atts);
        } else if (MATRIX.equals(name)) {
            startMatrix(atts);
        } else if (ENTRY.equals(name)) {
            startEntry(atts);
        } else {
            throw new RuntimeException(this + "[tag=" + name + " not known or not supported]");
        }
    }

    @Override
    public void endTag(final String name, final String content, final Stack<String> context) {
        if (MATRICES.equals(name)) {
            this.matrices = null;
        } else if (MATRIX.equals(name)) {
            this.currMatrix = null;
        }
    }

    private void startMatrices(final Attributes atts) {
        this.matrices.setName(atts.getValue("name"));
    }

    private void startMatrix(final Attributes atts) {
        this.currMatrix = this.matrices.createMatrix(atts.getValue("id"),
                atts.getValue("desc"));
    }

    private void startEntry(final Attributes  atts) {
        this.currMatrix.createAndAddEntry(atts.getValue("from_id"), atts.getValue("to_id"), Double.parseDouble(atts.getValue("value")));
    }

}