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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tuscany.sca.core.scope.impl;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.apache.tuscany.sca.core.scope.Scope;
import org.apache.tuscany.sca.core.scope.ScopeContainer;
import org.apache.tuscany.sca.core.scope.ScopeContainerFactory;
import org.apache.tuscany.sca.core.scope.ScopeRegistry;
import org.apache.tuscany.sca.core.scope.ScopedImplementationProvider;
import org.apache.tuscany.sca.core.scope.ScopedRuntimeComponent;
import org.apache.tuscany.sca.provider.ImplementationProvider;
import org.apache.tuscany.sca.runtime.RuntimeComponent;
/**
* The default implementation of a scope registry
*
* @version $Rev$ $Date$
*/
public class ScopeRegistryImpl implements ScopeRegistry {
private final Map<Scope, ScopeContainerFactory> scopeCache = new ConcurrentHashMap<Scope, ScopeContainerFactory>();
public void register(ScopeContainerFactory factory) {
scopeCache.put(factory.getScope(), factory);
}
public ScopeContainer getScopeContainer(RuntimeComponent runtimeComponent) {
if (!(runtimeComponent instanceof ScopedRuntimeComponent)) {
return null;
}
ScopedRuntimeComponent component = (ScopedRuntimeComponent)runtimeComponent;
if (component.getScopeContainer() != null) {
return component.getScopeContainer();
}
ImplementationProvider implementationProvider = component.getImplementationProvider();
if (implementationProvider instanceof ScopedImplementationProvider) {
ScopedImplementationProvider provider = (ScopedImplementationProvider)implementationProvider;
Scope scope = provider.getScope();
if (scope == null) {
scope = Scope.STATELESS;
} else if (scope.equals(Scope.INVALID)) {
return null;
}
ScopeContainerFactory factory = scopeCache.get(scope);
ScopeContainer container = factory.createScopeContainer(component);
component.setScopeContainer(container);
return container;
}
return null;
}
}
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