neon.client.resource.ConfigurationLoader.java Source code

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Here is the source code for neon.client.resource.ConfigurationLoader.java

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/*
 *   Neon, a roguelike engine.
 *   Copyright (C) 2018 - Maarten Driesen
 * 
 *   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, see <http://www.gnu.org/licenses/>.
 */

package neon.client.resource;

import java.io.IOException;
import java.util.HashSet;
import java.util.Set;
import java.util.stream.Collectors;

import org.jdom2.Element;

import com.google.common.io.Files;

import neon.common.files.NeonFileSystem;
import neon.common.files.XMLTranslator;
import neon.common.resources.CClient;
import neon.common.resources.Resource;
import neon.common.resources.loaders.ResourceLoader;

public class ConfigurationLoader implements ResourceLoader {
    private static final String namespace = "config";

    private final XMLTranslator translator = new XMLTranslator();
    private final NeonFileSystem files;

    public ConfigurationLoader(NeonFileSystem files) {
        this.files = files;
    }

    @Override
    public Resource load(String id) throws IOException {
        Element root = files.loadFile(translator, namespace, id + ".xml").getRootElement();
        String title = root.getAttributeValue("title");
        String subtitle = root.getAttributeValue("subtitle");
        String intro = root.getChildText("intro");

        HashSet<String> playable = new HashSet<>();
        for (Element species : root.getChild("playable").getChildren()) {
            playable.add(species.getAttributeValue("id"));
        }

        return new CClient(title, subtitle, playable, intro);
    }

    @Override
    public void save(Resource resource) {
        throw new UnsupportedOperationException("Client is not allowed to save resources.");
    }

    @Override
    public Set<String> listResources() {
        return files.listFiles(namespace).parallelStream().map(Files::getNameWithoutExtension)
                .collect(Collectors.toSet());
    }

    @Override
    public void removeResource(String id) {
        throw new UnsupportedOperationException("Client is not allowed to remove resources.");
    }

    @Override
    public String getNamespace() {
        return namespace;
    }
}