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Diffstat (limited to 'branches/2.0-M2/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/RequestScopeContainer.java')
-rw-r--r-- | branches/2.0-M2/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/RequestScopeContainer.java | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/branches/2.0-M2/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/RequestScopeContainer.java b/branches/2.0-M2/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/RequestScopeContainer.java new file mode 100644 index 0000000000..7519af2341 --- /dev/null +++ b/branches/2.0-M2/modules/core/src/main/java/org/apache/tuscany/sca/core/scope/impl/RequestScopeContainer.java @@ -0,0 +1,79 @@ +/* + * 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.factory.InstanceWrapper; +import org.apache.tuscany.sca.core.scope.AbstractScopeContainer; +import org.apache.tuscany.sca.core.scope.Scope; +import org.apache.tuscany.sca.core.scope.TargetResolutionException; +import org.apache.tuscany.sca.runtime.RuntimeComponent; + +/** + * A scope context which manages atomic component instances keyed on the current + * request context + * + * @version $Rev$ $Date$ + */ +public class RequestScopeContainer extends AbstractScopeContainer<Thread> { + private final Map<Thread, InstanceWrapper> contexts; + + public RequestScopeContainer(RuntimeComponent component) { + super(Scope.REQUEST, component); + contexts = new ConcurrentHashMap<Thread, InstanceWrapper>(); + } + + @Override + public synchronized void start() { + if (lifecycleState != UNINITIALIZED && lifecycleState != STOPPED) { + throw new IllegalStateException("Scope must be in UNINITIALIZED or STOPPED state [" + lifecycleState + "]"); + } + lifecycleState = RUNNING; + } + + @Override + public synchronized void stop() { + contexts.clear(); + // synchronized (destroyQueues) { + // destroyQueues.clear(); + // } + lifecycleState = STOPPED; + } + + protected InstanceWrapper getInstanceWrapper(boolean create) throws TargetResolutionException { + InstanceWrapper ctx = wrappers.get(Thread.currentThread()); + if (ctx == null && !create) { + return null; + } + if (ctx == null) { + ctx = super.createInstanceWrapper(); + ctx.start(); + wrappers.put(Thread.currentThread(), ctx); + } + return ctx; + } + + @Override + public InstanceWrapper getWrapper(Thread contextId) throws TargetResolutionException { + return getInstanceWrapper(true); + } + +} |