SPR-6422, conversation resolver

org.springframework.context/src/main/java/org/springframework/conversation/scope/AbstractConversationResolver.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2002-2008 the original author or authors.
+ * 
+ * Licensed 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.springframework.conversation.scope;
+
+/**
+ * The abstract implementation for a {@link ConversationResolver}.
+ * 
+ * @author Micha Kiener
+ * @since 3.1
+ */
+public abstract class AbstractConversationResolver implements ConversationResolver {
+
+	/**
+	 * @see org.springframework.conversation.scope.ConversationResolver#hasCurrentConversationId()
+	 */
+	public boolean hasCurrentConversationId() {
+		return (getCurrentConversationId() != null);
+	}
+}

org.springframework.context/src/main/java/org/springframework/conversation/scope/ThreadAttachedConversationResolver.java

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+/*
+ * Copyright 2002-2008 the original author or authors.
+ * 
+ * Licensed 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.springframework.conversation.scope;
+
+/**
+ * An implementation of the {@link ConversationResolver} where the currently
+ * used conversation id is bound to the current thread. This implementation
+ * should only be used in a batch environment, never in a web environment.
+ * 
+ * @author Micha Kiener
+ * @since 3.1
+ */
+public class ThreadAttachedConversationResolver extends AbstractConversationResolver {
+	/** The thread local attribute where the current conversation id is stored. */
+	private static final ThreadLocal<String> CURRENT_CONVERSATION_ID = new ThreadLocal<String>();
+
+	/**
+	 * @see org.springframework.conversation.scope.ConversationResolver#getCurrentConversationId()
+	 */
+	public String getCurrentConversationId() {
+		return CURRENT_CONVERSATION_ID.get();
+	}
+
+	/**
+	 * @see org.springframework.conversation.scope.ConversationResolver#setCurrentConversationId(java.lang.String)
+	 */
+	public void setCurrentConversationId(String conversationId) {
+		CURRENT_CONVERSATION_ID.set(conversationId);
+	}
+}