diff options
Diffstat (limited to 'sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/component/scope/ConversationalScopeContainer.java')
| -rw-r--r-- | sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/component/scope/ConversationalScopeContainer.java | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/component/scope/ConversationalScopeContainer.java b/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/component/scope/ConversationalScopeContainer.java deleted file mode 100644 index 2d9d3d938c..0000000000 --- a/sandbox/rfeng/minicore/src/main/java/org/apache/tuscany/core/component/scope/ConversationalScopeContainer.java +++ /dev/null @@ -1,190 +0,0 @@ -/*
- * 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.net.URI;
-
-import org.apache.tuscany.spi.component.AtomicComponent;
-import org.apache.tuscany.spi.component.InstanceWrapper;
-import org.apache.tuscany.spi.component.PersistenceException;
-import org.apache.tuscany.spi.component.ScopeContainer;
-import org.apache.tuscany.spi.component.ScopeContainerMonitor;
-import org.apache.tuscany.spi.component.TargetDestructionException;
-import org.apache.tuscany.spi.component.TargetResolutionException;
-import org.apache.tuscany.spi.component.WorkContext;
-import org.apache.tuscany.spi.event.Event;
-import org.apache.tuscany.spi.event.RuntimeEventListener;
-import org.apache.tuscany.spi.model.Scope;
-import org.apache.tuscany.spi.services.store.Store;
-import org.apache.tuscany.spi.services.store.StoreExpirationEvent;
-import org.apache.tuscany.spi.services.store.StoreReadException;
-import org.apache.tuscany.spi.services.store.StoreWriteException;
-
-/**
- * A scope context which manages atomic component instances keyed on a conversation session
- *
- * @version $Rev: 452655 $ $Date: 2006-10-03 18:09:02 -0400 (Tue, 03 Oct 2006) $
- */
-public class ConversationalScopeContainer extends AbstractScopeContainer implements ScopeContainer {
- private final WorkContext workContext;
- private final Store nonDurableStore;
-
- public ConversationalScopeContainer(Store store, WorkContext workContext, final ScopeContainerMonitor monitor) {
- super(Scope.CONVERSATION, monitor);
- this.workContext = workContext;
- this.nonDurableStore = store;
- if (store != null) {
- store.addListener(new ExpirationListener(monitor));
- }
- }
-
- public void onEvent(Event event) {
- checkInit();
- }
-
- public synchronized void start() {
- if (lifecycleState != UNINITIALIZED && lifecycleState != STOPPED) {
- throw new IllegalStateException("Scope must be in UNINITIALIZED or STOPPED state [" + lifecycleState + "]");
- }
- lifecycleState = RUNNING;
- }
-
- public synchronized void stop() {
- lifecycleState = STOPPED;
- }
-
- public void register(AtomicComponent component, URI groupId) {
- super.register(component, groupId);
- component.addListener(this);
- }
-
- public void unregister(AtomicComponent component) {
- // FIXME should all the instances associated with this component be remove already
- component.removeListener(this);
- super.unregister(component);
- }
-
- public void persistNew(AtomicComponent component, String id, Object instance, long expiration)
- throws PersistenceException {
- try {
- nonDurableStore.insertRecord(component, id, instance, expiration);
- } catch (StoreWriteException e) {
- throw new PersistenceException(e);
- }
- }
-
- public void persist(AtomicComponent component, String id, Object instance, long expiration)
- throws PersistenceException {
- try {
- nonDurableStore.updateRecord(component, id, instance, expiration);
- } catch (StoreWriteException e) {
- throw new PersistenceException(e);
- }
- }
-
- public void remove(AtomicComponent component) throws PersistenceException {
- String conversationId = getConversationId();
- try {
- workContext.setCurrentAtomicComponent(component);
- // FIXME this should be an InstanceWrapper and shouldn't we stop it?
- Object instance = nonDurableStore.readRecord(component, conversationId);
- if (instance != null) {
- nonDurableStore.removeRecord(component, conversationId);
- }
- } catch (StoreReadException e) {
- throw new PersistenceException(e);
- } catch (StoreWriteException e) {
- throw new PersistenceException(e);
- }
- }
-
- protected InstanceWrapper getInstanceWrapper(AtomicComponent component, boolean create)
- throws TargetResolutionException {
- String conversationId = getConversationId();
- try {
- workContext.setCurrentAtomicComponent(component);
- InstanceWrapper wrapper = (InstanceWrapper) nonDurableStore.readRecord(component, conversationId);
- if (wrapper != null) {
- if (component.getMaxIdleTime() > 0) {
- // update expiration
- long expire = System.currentTimeMillis() + component.getMaxIdleTime();
- nonDurableStore.updateRecord(component, conversationId, wrapper, expire);
- }
- } else if (create) {
- // FIXME should the store really be persisting the wrappers
- wrapper = component.createInstanceWrapper();
- wrapper.start();
- long expire = calculateExpiration(component);
- nonDurableStore.insertRecord(component, conversationId, wrapper, expire);
- }
- return wrapper;
- } catch (StoreReadException e) {
- throw new TargetResolutionException("Error retrieving target instance", e);
- } catch (StoreWriteException e) {
- throw new TargetResolutionException("Error persisting target instance", e);
- } finally {
- workContext.setCurrentAtomicComponent(null);
- }
- }
-
- /**
- * Returns the conversation id associated with the current invocation context
- * @return the conversation id
- */
- private String getConversationId() {
- String conversationId = (String) workContext.getIdentifier(Scope.CONVERSATION);
- assert conversationId != null;
- return conversationId;
- }
-
- private long calculateExpiration(AtomicComponent component) {
- if (component.getMaxAge() > 0) {
- long now = System.currentTimeMillis();
- return now + component.getMaxAge();
- } else if (component.getMaxIdleTime() > 0) {
- long now = System.currentTimeMillis();
- return now + component.getMaxIdleTime();
- } else {
- return Store.DEFAULT_EXPIRATION_OFFSET;
- }
- }
-
- /**
- * Receives expiration events from the store and notifies the corresponding atomic component
- */
- private static class ExpirationListener implements RuntimeEventListener {
- private final ScopeContainerMonitor monitor;
-
- public ExpirationListener(ScopeContainerMonitor monitor) {
- this.monitor = monitor;
- }
-
- public void onEvent(Event event) {
- if (event instanceof StoreExpirationEvent) {
- StoreExpirationEvent expiration = (StoreExpirationEvent) event;
- InstanceWrapper wrapper = (InstanceWrapper) expiration.getInstance();
- try {
- wrapper.stop();
- } catch (TargetDestructionException e) {
- monitor.destructionError(e);
- }
- }
- }
- }
-}
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