diff options
Diffstat (limited to 'tags/java/sca/2.0-M3/modules/core/src/main/java/org/apache/tuscany/sca/core/conversation/impl/ExtendedConversationImpl.java')
| -rw-r--r-- | tags/java/sca/2.0-M3/modules/core/src/main/java/org/apache/tuscany/sca/core/conversation/impl/ExtendedConversationImpl.java | 267 |
1 files changed, 0 insertions, 267 deletions
diff --git a/tags/java/sca/2.0-M3/modules/core/src/main/java/org/apache/tuscany/sca/core/conversation/impl/ExtendedConversationImpl.java b/tags/java/sca/2.0-M3/modules/core/src/main/java/org/apache/tuscany/sca/core/conversation/impl/ExtendedConversationImpl.java deleted file mode 100644 index 34bf8a12d5..0000000000 --- a/tags/java/sca/2.0-M3/modules/core/src/main/java/org/apache/tuscany/sca/core/conversation/impl/ExtendedConversationImpl.java +++ /dev/null @@ -1,267 +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.sca.core.conversation.impl; - -import org.apache.tuscany.sca.core.conversation.ConversationExt; -import org.apache.tuscany.sca.core.conversation.ConversationState; -import org.apache.tuscany.sca.core.scope.ScopedImplementationProvider; -import org.apache.tuscany.sca.provider.ImplementationProvider; -import org.apache.tuscany.sca.runtime.RuntimeComponent; - - -/** - * - * @version $Rev$ $Date$ - */ -public class ExtendedConversationImpl implements ConversationExt, Runnable { - - private final ConversationManagerImpl manager; - private volatile Object conversationID; - private ConversationState state; - - /** - * syncs access to the state - */ - private final Object stateSync = new Object(); - - /** - * the maximum time a conversation can exist - */ - private long expirationTime = 0; - - /** - * the maximum time this conversation can be idle - */ - private long maxIdleTime = 0; - - /** - * the maximum age of this conversation - */ - private long maxAge = 0; - - /** - * the time that this object was created - */ - private long creationTime; - - /** - * the time that this object was last referenced - */ - private long lastReferencedTime; - - /** - * boolean to ensure expiry only occurs once - */ - private boolean expired = false; - - /** - * boolean to indicate if the conversation attributes have - * been set. In the case where a remote binding is used - * within a composite the JDKInvocationHandler can create the - * conversation but the conversationAttributes are not available - * until the conversation is retrieved by the RuntimeWireInvoker - */ - private boolean conversationAttributesInitialized = false; - - /** - * Constructor - * @param manager the conversation manager - * @param conversationID the conversation id associated with this conversation - * @param state the initial state of this conversation - * @param aMaxAge the maximum age of the conversation - * @param aMaxIdleTime the maximum idle time - */ - public ExtendedConversationImpl(ConversationManagerImpl manager, - Object conversationID, ConversationState state) { - super(); - - this.creationTime = System.currentTimeMillis(); - this.lastReferencedTime = creationTime; - this.manager = manager; - this.conversationID = conversationID; - this.state = state; - } - - /** - * will check whether this conversation has expired and update state if it has - * @return true if it has expired - */ - public boolean isExpired() { - long currentTime; - synchronized (stateSync) { - - // if the attributes haven't been initialized then - // this conversation object can't expire - if (conversationAttributesInitialized == false) { - return false; - } - - // check state first - if (state == ConversationState.EXPIRED) { - return true; - } - - // check whether the time is finished - currentTime = System.currentTimeMillis(); - if (((this.lastReferencedTime + this.maxIdleTime) <= currentTime) - || (this.expirationTime <= currentTime)) { - setState(ConversationState.EXPIRED); - return true; - } - } - scheduleNextExpiryTime(currentTime); - return false; - } - - /** - * schedule next expiry time - */ - public void scheduleNextExpiryTime(long currentTime) { - if ((lastReferencedTime + maxIdleTime) < expirationTime){ - manager.scheduleConversation(this, (lastReferencedTime + maxIdleTime) - currentTime); - } else { - manager.scheduleConversation(this, expirationTime - currentTime); - } - } - /** - * updates the last time this conversation was referenced - */ - public void updateLastReferencedTime() { - this.lastReferencedTime = System.currentTimeMillis(); - if (conversationAttributesInitialized == true){ - scheduleNextExpiryTime(lastReferencedTime); - } - } - - public ConversationState getState() { - synchronized (stateSync){ - return state; - } - } - - public void end() { - manager.endConversation(conversationID); - } - - public Object getConversationID() { - return conversationID; - } - - /** - * @param state the state to set - */ - public void setState(ConversationState state) { - synchronized (stateSync){ - this.state = state; - } - } - - /** - * @param conversationID the conversationID to set - */ - public void setConversationID(Object conversationID) { - synchronized (stateSync){ - if (state != ConversationState.ENDED) { - throw new IllegalStateException("The state of conversation " + conversationID + " " + state); - } - } - this.conversationID = conversationID; - } - - /** - * @param maxAge the maximum age of this conversation - */ - public void initializeConversationAttributes(RuntimeComponent targetComponent){ - if (targetComponent != null){ - this.maxAge = getMaxIdleTime(targetComponent.getImplementationProvider()); - this.maxIdleTime = getMaxAge(targetComponent.getImplementationProvider()); - this.expirationTime = creationTime + maxAge; - this.conversationAttributesInitialized = true; - } - } - - /** - * @return true if the conversational attributes have been initialized - */ - public boolean conversationalAttributesInitialized(){ - return this.conversationAttributesInitialized; - } - - /** - * return the max idle time - * @param impProvider the implementation Provider to extract any ConversationAttribute details - */ - private long getMaxIdleTime(ImplementationProvider impProvider) { - // Check to see if the maxIdleTime has been specified using @ConversationAttributes. - // Implementation annotated attributes are honoured first. - if ((impProvider != null) && - (impProvider instanceof ScopedImplementationProvider)) { - ScopedImplementationProvider aScopedImpl = - (ScopedImplementationProvider) impProvider; - - long maxIdleTime = aScopedImpl.getMaxIdleTime(); - if (maxIdleTime > 0) { - return maxIdleTime; - } - } - return manager.getMaxIdleTime(); - } - - /** - * returns the max age - * @param impProvider the implementation Provider to extract any ConversationAttribute details - */ - private long getMaxAge(ImplementationProvider impProvider){ - - // Check to see if the maxAge has been specified using @ConversationAttributes. - // Implementation annotated attributes are honoured first. - if ((impProvider != null) && - (impProvider instanceof ScopedImplementationProvider)) { - ScopedImplementationProvider aScopedImpl = - (ScopedImplementationProvider) impProvider; - - long maxAge = aScopedImpl.getMaxAge(); - if (maxAge > 0) { - return maxAge; - } - } - return manager.getMaxAge(); - } - - /** - * called when expiring - */ - public void run() { - synchronized (stateSync){ - if (!expired){ - if (isExpired()) { - expired = true; - try { - manager.expireConversation(getConversationID()); - } catch (IllegalStateException ise) { - // ignore this.. this can occur if another thread has subsequently ended - // the conversation - } - } - } - } - - } - -} |