/*
* Copyright 2014 MovingBlocks
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.terasology.world.generator.plugin;
import java.util.List;
import org.terasology.engine.SimpleUri;
import org.terasology.module.ModuleEnvironment;
import org.terasology.reflection.copy.CopyStrategyLibrary;
import org.terasology.reflection.metadata.ClassLibrary;
import org.terasology.reflection.metadata.ClassMetadata;
import org.terasology.reflection.metadata.DefaultClassLibrary;
import org.terasology.reflection.reflect.ReflectFactory;
import com.google.common.collect.Lists;
/**
* @author Immortius
*/
public class DefaultWorldGeneratorPluginLibrary implements WorldGeneratorPluginLibrary {
private ClassLibrary<WorldGeneratorPlugin> library;
public DefaultWorldGeneratorPluginLibrary(ModuleEnvironment moduleEnvironment, ReflectFactory reflectFactory, CopyStrategyLibrary copyStrategyLibrary) {
library = new DefaultClassLibrary<>(reflectFactory, copyStrategyLibrary);
for (Class entry : moduleEnvironment.getTypesAnnotatedWith(RegisterPlugin.class)) {
if (WorldGeneratorPlugin.class.isAssignableFrom(entry)) {
library.register(new SimpleUri(moduleEnvironment.getModuleProviding(entry), entry.getSimpleName()), entry);
}
}
}
@Override
public <U extends WorldGeneratorPlugin> List<U> instantiateAllOfType(Class<U> ofType) {
List<U> result = Lists.newArrayList();
for (ClassMetadata classMetadata : library) {
if (ofType.isAssignableFrom(classMetadata.getType()) && classMetadata.isConstructable() && classMetadata.getType().getAnnotation(RegisterPlugin.class) != null) {
U item = ofType.cast(classMetadata.newInstance());
if (item != null) {
result.add(item);
}
}
}
return result;
}
}