AbstractArchetypeBuilder.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.model.archetype;
 
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Map.Entry;
import net.sf.gridarta.model.baseobject.BaseObject;
import net.sf.gridarta.model.errorview.ErrorViewCategory;
import net.sf.gridarta.model.errorview.ErrorViewCollector;
import net.sf.gridarta.model.gameobject.GameObject;
import net.sf.gridarta.model.gameobject.GameObjectFactory;
import net.sf.gridarta.model.maparchobject.MapArchObject;
import net.sf.gridarta.utils.StringUtils;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
 
public abstract class AbstractArchetypeBuilder<G extends GameObject<G, A, R>, A extends MapArchObject<A>, R extends Archetype<G, A, R>> {
 
    @Nullable
    private R prototype;
 
    @Nullable
    private ErrorViewCollector errorViewCollector;
 
    @Nullable
    private R archetype;
 
    @NotNull
    private final Map<String, String> attributes = new LinkedHashMap<>();
 
    @NotNull
    private final GameObjectFactory<G, A, R> gameObjectFactory;
 
    protected AbstractArchetypeBuilder(@NotNull final GameObjectFactory<G, A, R> gameObjectFactory) {
        this.gameObjectFactory = gameObjectFactory;
    }
 
    public void init(@Nullable final R prototype, @NotNull final ErrorViewCollector errorViewCollector) {
        this.prototype = prototype;
        this.errorViewCollector = errorViewCollector;
        // start with new clean GameObject instance
        if (prototype == null) {
            archetype = gameObjectFactory.newArchetype(""); // XXX: undefined archetype name
        } else {
            archetype = prototype.clone();
        }
        attributes.clear();
    }
 
    public void reInit(@NotNull final String archetypeName) {
        if (archetype == null) {
            archetype = gameObjectFactory.newArchetype(archetypeName);
        } else {
            archetype.setArchetypeName(archetypeName);
        }
        attributes.clear();
    }
 
    public void setMsgText(@NotNull final String msgText) {
        if (archetype == null) {
            throw new IllegalStateException("archetype is unset");
        }
        archetype.setMsgText(msgText);
    }
 
    @NotNull
    public String getArchetypeName() {
        if (archetype == null) {
            throw new IllegalStateException("archetype is unset");
        }
        return archetype.getArchetypeName();
    }
 
    public void addObjectText(@NotNull final String line) {
        if (archetype == null) {
            throw new IllegalStateException("archetype is unset");
        }
        if (errorViewCollector == null) {
            throw new IllegalStateException("error view collector is unset");
        }
 
        if (line.indexOf('\n') != -1) {
            throw new IllegalArgumentException("line contains a NL character: '" + line + "'");
        }
 
        final String[] tmp = StringUtils.PATTERN_SPACES.split(line, 2);
        final String key = tmp[0];
        if (tmp.length < 2) {
            assert archetype != null;
            final String archetypeName = archetype.getArchetypeName();
            assert errorViewCollector != null;
            errorViewCollector.addWarning(ErrorViewCategory.ARCHETYPE_INVALID, archetypeName + ": invalid attribute definition: " + line);
            return;
        }
        final String value = tmp[1];
        final String previousValue = attributes.put(key, value);
        if (previousValue != null) {
            assert archetype != null;
            final String archetypeName = archetype.getArchetypeName();
            assert errorViewCollector != null;
            errorViewCollector.addWarning(ErrorViewCategory.ARCHETYPE_INVALID, archetypeName + ": duplicate attribute definition: " + line + ", previous value was " + previousValue);
        }
    }
 
    public void addLast(@NotNull final G invObject) {
        if (archetype == null) {
            throw new IllegalStateException("archetype is unset");
        }
        archetype.addLast(invObject);
    }
 
    @NotNull
    public R finish() {
        if (prototype != null && prototype.getAttributeString(BaseObject.NAME).isEmpty() && !attributes.containsKey(BaseObject.NAME)) {
            assert prototype != null;
            addObjectText(BaseObject.NAME + " " + prototype.getArchetypeName());
        }
 
        if (archetype == null) {
            throw new IllegalStateException("archetype is unset");
        }
        final R result = archetype;
        archetype = null;
        final StringBuilder sb = new StringBuilder();
        for (final String attribute : StringUtils.PATTERN_END_OF_LINE.split(result.getObjectText())) {
            final String[] tmp = StringUtils.PATTERN_SPACES.split(attribute, 2);
            if (tmp.length == 2 && !attributes.containsKey(tmp[0])) {
                sb.append(attribute).append('\n');
            }
        }
        for (final Entry<String, String> attribute : attributes.entrySet()) {
            sb.append(attribute.getKey()).append(' ').append(attribute.getValue()).append('\n');
        }
        result.setObjectText(sb.toString());
        attributes.clear();
        return result;
    }
 
    public void setMultiX(final int multiX) {
        if (archetype == null) {
            throw new IllegalStateException("archetype is unset");
        }
        archetype.setMultiX(multiX);
    }
 
    public void setMultiY(final int multiY) {
        if (archetype == null) {
            throw new IllegalStateException("archetype is unset");
        }
        archetype.setMultiY(multiY);
    }
 
    @NotNull
    protected R getArchetype() {
        final R result = archetype;
        if (result == null) {
            throw new IllegalStateException("archetype is unset");
        }
        return result;
    }
 
}