gvSIG projects pool

/**

 * gvSIG. Desktop Geographic Information System.

 *

 * Copyright (C) 2007-2013 gvSIG Association.

 *

 * 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 3

 * of the License, or (at your option) any later version.

 *

 * This program 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 this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA  02110-1301, USA.

 *

 * For any additional information, do not hesitate to contact us

 * at info AT gvsig.com, or visit our website www.gvsig.com.

 */

package org.gvsig.topology.lib.impl;

import java.util.ArrayList;

import java.util.Collections;

import java.util.List;

import org.gvsig.expressionevaluator.Code;

import org.gvsig.expressionevaluator.ExpressionEvaluatorLocator;

import org.gvsig.expressionevaluator.ExpressionEvaluatorManager;

import org.gvsig.expressionevaluator.MutableSymbolTable;

import org.gvsig.fmap.dal.feature.FeatureReference;

import org.gvsig.fmap.geom.Geometry;

import org.gvsig.tools.task.SimpleTaskStatus;

import org.gvsig.topology.lib.api.TopologyDataSet;

import org.gvsig.topology.lib.api.TopologyPlan;

import org.gvsig.topology.lib.api.TopologyReport;

import org.gvsig.topology.lib.api.TopologyReportLine;

import org.gvsig.topology.lib.api.TopologyReportLineSet;

import org.gvsig.topology.lib.api.TopologyRule;

import org.slf4j.Logger;

import org.slf4j.LoggerFactory;

/**

 *

 * @author jjdelcerro

 */

@SuppressWarnings("UseSpecificCatch")

public class DefaultTopologyReport 

        extends AbstractTopologyReportLineSet

        implements TopologyReport 

    {

    private static final Logger LOGGER = LoggerFactory.getLogger(DefaultTopologyReport.class);

    private class DefaultTopologyReportLineSet extends AbstractTopologyReportLineSet {

        public DefaultTopologyReportLineSet() {

            super();

        }

        public void polulate(List<TopologyReportLine> allLines, String filter) {

            this.lines.clear();

            if (filter == null) {

                this.lines.addAll(allLines);

                this.completed = true;

                return;

            }

            SimpleTaskStatus theTaskStatus = plan.getTaskStatus();

            try {

                theTaskStatus.push();

                theTaskStatus.restart();

                theTaskStatus.message("Preparing filter");

                theTaskStatus.setAutoremove(true);

                theTaskStatus.setIndeterminate();

                ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager();

                TopologyReportLineSymbolTable lineSymbolTable = new TopologyReportLineSymbolTable();

                MutableSymbolTable symbolTable = manager.createSymbolTable();

                symbolTable.addSymbolTable(lineSymbolTable);

                Code code = manager.compile(filter);

                code = manager.optimize(symbolTable, code);

                theTaskStatus.setRangeOfValues(0, allLines.size());

                theTaskStatus.setCurValue(0);

                for (TopologyReportLine line : allLines) {

                    lineSymbolTable.setLine(line);

                    Object value = manager.evaluate(symbolTable, code);

                    if (value instanceof Boolean && ((Boolean) value)) {

                        this.lines.add(line);

                        this.changeListenerHelper.fireEvent();

                    }

                    theTaskStatus.incrementCurrentValue();

                }

            } catch (Exception ex) {

                LOGGER.warn("Problems filtering.", ex);

                theTaskStatus.abort();

            } finally {

                if (theTaskStatus.isRunning()) {

                    theTaskStatus.terminate();

                }

                theTaskStatus.pop();

                this.completed = true;

            }

        }

    }

    // TODO: Habria que meter las lineas del report en disco

    private final TopologyPlan plan;

    public DefaultTopologyReport(TopologyPlan plan) {

        this.plan = plan;

    }

    @Override

    public TopologyReportLine addLine(TopologyRule rule, TopologyDataSet dataSet1,

            TopologyDataSet dataSet2, Geometry geometry, Geometry error,

            FeatureReference feature1, FeatureReference feature2,

            boolean exception, String description

    ) {

        TopologyReportLine line = new DefaultTopologyReportLine(

                this, rule, dataSet1, dataSet2, geometry, error, feature1, 

                feature2, exception, description

        );

        this.lines.add(line);

        this.fireChangeEvent();

        return line;

    }

    @Override

    public void removeAllLines() {

        this.lines.clear();

        this.fireChangeEvent();

    }

    @Override

    public TopologyReportLineSet getLineSet(final String filter) {

        final DefaultTopologyReportLineSet set = new DefaultTopologyReportLineSet();

        Thread th = new Thread(new Runnable() {

            @Override

            public void run() {

                set.polulate(lines, filter);

            }

        });

        th.start();

        return set;

    }

    @Override

    public List<TopologyReportLine> getLines(String filter) {

        if (filter == null) {

            return Collections.unmodifiableList(this.lines);

        }

        List<TopologyReportLine> ll = new ArrayList<>();

        ExpressionEvaluatorManager manager = ExpressionEvaluatorLocator.getManager();

        TopologyReportLineSymbolTable lineSymbolTable = new TopologyReportLineSymbolTable();

        MutableSymbolTable symbolTable = manager.createSymbolTable();

        symbolTable.addSymbolTable(lineSymbolTable);

        Code code = manager.compile(filter);

        code = manager.optimize(symbolTable, code);

        for (TopologyReportLine line : this.lines) {

            lineSymbolTable.setLine(line);

            Object value = manager.evaluate(symbolTable, code);

            if (value instanceof Boolean && ((Boolean) value)) {

                ll.add(line);

            }

        }

        return Collections.unmodifiableList(ll);

    }

}