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Diffstat (limited to 'branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/component/scope/ScopeRegistryImpl.java')
-rw-r--r-- | branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/component/scope/ScopeRegistryImpl.java | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/component/scope/ScopeRegistryImpl.java b/branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/component/scope/ScopeRegistryImpl.java new file mode 100644 index 0000000000..da338dd0ef --- /dev/null +++ b/branches/sca-java-integration/sca/kernel/core/src/main/java/org/apache/tuscany/core/component/scope/ScopeRegistryImpl.java @@ -0,0 +1,63 @@ +/* + * 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.core.component.scope; + +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; + +import org.apache.tuscany.spi.ObjectFactory; +import org.apache.tuscany.spi.component.ScopeContainer; +import org.apache.tuscany.spi.component.ScopeRegistry; +import org.apache.tuscany.spi.model.Scope; + +/** + * The default implementation of a scope registry + * + * @version $Rev$ $Date$ + */ +public class ScopeRegistryImpl implements ScopeRegistry { + private final Map<Scope, ScopeContainer> scopeCache = + new ConcurrentHashMap<Scope, ScopeContainer>(); + private final Map<Scope, ObjectFactory<? extends ScopeContainer>> factoryCache = + new ConcurrentHashMap<Scope, ObjectFactory<? extends ScopeContainer>>(); + + public ScopeContainer getScopeContainer(Scope scope) { + assert Scope.COMPOSITE != scope; + ScopeContainer container = scopeCache.get(scope); + if (container == null) { + ObjectFactory<? extends ScopeContainer> factory = factoryCache.get(scope); + if (factory != null) { + container = factory.getInstance(); + container.start(); + scopeCache.put(scope, container); + } + } + return container; + } + + public <T extends ScopeContainer> void registerFactory(Scope scope, ObjectFactory<T> factory) { + factoryCache.put(scope, factory); + } + + public void deregisterFactory(Scope scope) { + factoryCache.remove(scope); + } + + +} |