org.ow2.mind.plugin.ExtensionImpl.java Source code

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Here is the source code for org.ow2.mind.plugin.ExtensionImpl.java

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/**
 * Copyright (C) 2010 STMicroelectronics
 *
 * This file is part of "Mind Compiler" is free software: you can redistribute 
 * it and/or modify it under the terms of the GNU Lesser 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 Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 * Contact: mind@ow2.org
 *
 * Authors: Matthieu Leclercq
 * Contributors: 
 */

package org.ow2.mind.plugin;

import java.util.ArrayList;
import java.util.List;

import org.objectweb.fractal.adl.CompilerError;
import org.objectweb.fractal.adl.error.GenericErrors;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;

import com.google.common.base.Predicate;
import com.google.common.collect.Iterables;

class ExtensionImpl implements Extension {

    private static final String ID_ATTR_NAME = "id";
    private static final String NAME_ATTR_NAME = "name";
    private static final String POINT_ATTR_NAME = "point";

    private final Plugin plugin;
    private final String pointID;
    private final String id;
    private final String name;
    private final List<ConfigurationElement> configurationElements;

    ExtensionImpl(final PluginImpl plugin, final Element element) {
        this.plugin = plugin;
        pointID = element.getAttribute(POINT_ATTR_NAME);
        if (pointID == null) {
            throw new CompilerError(GenericErrors.INTERNAL_ERROR,
                    "Invalid extenstion node, missing point ID in'" + element.getBaseURI() + "'.");
        }
        id = element.getAttribute(ID_ATTR_NAME);
        name = element.getAttribute(NAME_ATTR_NAME);

        final NodeList childNodes = element.getChildNodes();
        configurationElements = new ArrayList<ConfigurationElement>();
        for (int i = 0; i < childNodes.getLength(); i++) {
            final org.w3c.dom.Node node = childNodes.item(i);
            if (!(node instanceof Element))
                continue;

            configurationElements.add(new ConfigurationElementImpl(plugin, this, (Element) node));
        }
    }

    public String getExtensionPointID() {
        return pointID;
    }

    public String getId() {
        return id;
    }

    public String getName() {
        return name;
    }

    public Plugin getPlugin() {
        return plugin;
    }

    public Iterable<ConfigurationElement> getConfigurationElements() {
        return Iterables.unmodifiableIterable(configurationElements);
    }

    public Iterable<ConfigurationElement> getConfigurationElements(final String name) {
        return Iterables.filter(configurationElements, new Predicate<ConfigurationElement>() {
            public boolean apply(final ConfigurationElement input) {
                return input.getName().equals(name);
            }
        });
    }

}