BrowseArchetypesTableModel.java

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/*
 * Gridarta MMORPG map editor for Crossfire, Daimonin and similar games.
 * Copyright (C) 2000-2015 The Gridarta Developers.
 *
 * 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.
 *
 * 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.
 */

package net.sf.gridarta.gui.dialog.browsearchetypes;

import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;
import java.util.regex.Pattern;
import javax.swing.table.AbstractTableModel;
import net.sf.gridarta.model.archetype.Archetype;
import net.sf.gridarta.model.archetypeset.ArchetypeSet;
import net.sf.gridarta.model.gameobject.GameObject;
import net.sf.gridarta.model.maparchobject.MapArchObject;
import net.sf.gridarta.utils.ActionBuilderUtils;
import net.sf.japi.swing.action.ActionBuilder;
import net.sf.japi.swing.action.ActionBuilderFactory;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class BrowseArchetypesTableModel<G extends GameObject<G, A, R>, A extends MapArchObject<A>, R extends Archetype<G, A, R>> extends AbstractTableModel {

    private static final long serialVersionUID = 1L;

    @NotNull
    private static final ActionBuilder ACTION_BUILDER = ActionBuilderFactory.getInstance().getActionBuilder("net.sf.gridarta");

    @NotNull
    private static final Pattern PATTERN_PLAIN_CSV_VALUE = Pattern.compile("[a-zA-Z_0-9]+");

    @NotNull
    private static final Pattern PATTERN_QUOTE = Pattern.compile("\"");

    @NotNull
    private final ArchetypeSet<G, A, R> archetypeSet;

    @NotNull
    private final List<R> archetypes = new ArrayList<>();

    @NotNull
    private final List<String> attributes = new ArrayList<>();

    @NotNull
    private final List<Class<?>> classes = new ArrayList<>();

    @NotNull
    private final Map<String, Class<?>> classMap = new WeakHashMap<>();

    public BrowseArchetypesTableModel(@NotNull final ArchetypeSet<G, A, R> archetypeSet) {
        this.archetypeSet = archetypeSet;
        update();
    }

    @Override
    public int getRowCount() {
        return archetypes.size();
    }

    @Override
    public int getColumnCount() {
        return 2 + attributes.size();
    }

    @Nullable
    @Override
    public Object getValueAt(final int rowIndex, final int columnIndex) {
        if (rowIndex < 0 || rowIndex >= archetypes.size()) {
            return null;
        }
        final Archetype<?, ?, ?> archetype = archetypes.get(rowIndex);
        if (columnIndex == 0) {
            return archetype.getArchetypeName();
        } else if (columnIndex == 1) {
            return archetype.getBestName();
        } else if (columnIndex >= 0 && columnIndex < 2 + attributes.size()) {
            final String attribute = attributes.get(columnIndex - 2);
            final String value = archetype.getAttributeString(attribute);
            final Class<?> attributeClass = classes.get(columnIndex - 2);
            if (attributeClass == Long.class) {
                if (value.isEmpty()) {
                    return null;
                }
                try {
                    return Long.valueOf(value);
                } catch (final NumberFormatException ignored) {
                }
            }
            return value;
        } else {
            return null;
        }
    }

    @Override
    public String getColumnName(final int column) {
        if (column == 0) {
            return ActionBuilderUtils.getString(ACTION_BUILDER, "browseArchetypes.table.archetype");
        } else if (column == 1) {
            return ActionBuilderUtils.getString(ACTION_BUILDER, "browseArchetypes.table.name");
        } else if (column >= 0 && column < 2 + attributes.size()) {
            return attributes.get(column - 2);
        } else {
            return super.getColumnName(column);
        }
    }

    @Override
    public Class<?> getColumnClass(final int columnIndex) {
        if (columnIndex < 2) {
            return String.class;
        } else if (columnIndex >= 0 && columnIndex < 2 + attributes.size()) {
            return classes.get(columnIndex - 2);
        } else {
            return super.getColumnClass(columnIndex);
        }
    }

    private void update() {
        archetypes.clear();
        for (final R archetype : archetypeSet.getArchetypes()) {
            boolean include = false;
            for (final String attribute : attributes) {
                if (!archetype.getAttributeString(attribute).isEmpty()) {
                    include = true;
                    break;
                }
            }
            if (include) {
                archetypes.add(archetype);
            }
        }
        fireTableStructureChanged();
    }

    public void addAttribute(@NotNull final String attribute) {
        classes.add(getAttributeClass(attribute));
        attributes.add(attribute);
        update();
    }

    @NotNull
    private Class<?> getAttributeClass(@NotNull final String attribute) {
        final Class<?> existingClass = classMap.get(attribute);
        if (existingClass != null) {
            return existingClass;
        }

        for (final Archetype<?, ?, ?> archetype : archetypeSet.getArchetypes()) {
            final String value = archetype.getAttributeString(attribute);
            if (value.isEmpty()) {
                // skip empty values
                continue;
            }
            try {
                Long.parseLong(value);
            } catch (final NumberFormatException ignored) {
                classMap.put(attribute, String.class);
                return String.class;
            }
        }
        classMap.put(attribute, Long.class);
        return Long.class;
    }

    @Nullable
    public String removeAttribute(final int index) {
        final String attribute;
        try {
            attribute = attributes.remove(index - 2);
            classes.remove(index - 2);
        } catch (final IndexOutOfBoundsException ignored) {
            return null;
        }
        update();
        return attribute;
    }

    @NotNull
    @SuppressWarnings("TypeMayBeWeakened")
    public R get(final int index) {
        return archetypes.get(index);
    }

    public void saveAsCsv(@NotNull final File file) throws IOException {
        try (OutputStream outputStream = new FileOutputStream(file)) {
            try (Writer writer = new OutputStreamWriter(outputStream)) {
                try (BufferedWriter bufferedWriter = new BufferedWriter(writer)) {
                    final int columns = getColumnCount();
                    final int rows = getRowCount();
                    for (int column = 0; column < columns; column++) {
                        if (column > 0) {
                            bufferedWriter.write(",");
                        }
                        writeCsvValue(bufferedWriter, getColumnName(column));
                    }
                    bufferedWriter.newLine();
                    for (int row = 0; row < rows; row++) {
                        for (int column = 0; column < columns; column++) {
                            if (column > 0) {
                                bufferedWriter.write(",");
                            }
                            final Object value = getValueAt(row, column);
                            writeCsvValue(bufferedWriter, value == null ? "" : value.toString());
                        }
                        bufferedWriter.newLine();
                    }
                }
            }
        }
    }

    private static void writeCsvValue(@NotNull final Writer writer, @NotNull final String value) throws IOException {
        if (PATTERN_PLAIN_CSV_VALUE.matcher(value).matches()) {
            writer.write(value);
        } else {
            writer.write("\"");
            writer.write(PATTERN_QUOTE.matcher(value).replaceAll("\"\""));
            writer.write("\"");
        }
    }

}