Workflow checkpoint:

- BPM Engine Registry & Plug-in SPIs
- First JBoss JBPM based Implementation of SPIs
- Workflow Service Implementation
- Tests

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@3436 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/workflow/BPMEngine.java

@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2005 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * 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.alfresco.repo.workflow;
+
+import org.alfresco.service.cmr.workflow.WorkflowException;
+import org.springframework.beans.factory.InitializingBean;
+
+
+/**
+ * Base functionality for a plug-in BPM Engine
+ * 
+ * @author davidc
+ */
+public class BPMEngine implements InitializingBean
+{
+    private BPMEngineRegistry registry;
+    private String engineId;
+
+ 
+    /**
+     * Sets the BPM Engine Registry
+     * 
+     * @param registry   the registry
+     */
+    public void setBPMEngineRegistry(BPMEngineRegistry registry)
+    {
+        this.registry = registry;
+    }
+
+    /**
+     * Sets the BPM Engine Id
+     * 
+     * @param engineId   the id
+     */
+    public void setEngineId(String engineId)
+    {
+        this.engineId = engineId;
+    }
+
+    /*
+     *  (non-Javadoc)
+     * @see org.springframework.beans.factory.InitializingBean#afterPropertiesSet()
+     */
+    public void afterPropertiesSet() throws Exception
+    {
+        if (engineId == null || engineId.length() == 0)
+        {
+            throw new WorkflowException("Engine Id not specified");
+        }
+        
+        if (this instanceof WorkflowDefinitionComponent)
+        {
+            registry.registerWorkflowDefinitionComponent(engineId, (WorkflowDefinitionComponent)this);
+        }
+        if (this instanceof WorkflowComponent)
+        {
+            registry.registerWorkflowComponent(engineId, (WorkflowComponent)this);
+        }
+        if (this instanceof TaskComponent)
+        {
+            registry.registerTaskComponent(engineId, (TaskComponent)this);
+        }
+    }
+
+    /**
+     * Construct a global Id for use outside of the engine
+     *  
+     * @param localId  the local engine id
+     * @return  the global id
+     */
+    protected String createGlobalId(String localId)
+    {
+        return BPMEngineRegistry.createGlobalId(engineId, localId);
+    }
+    
+    /**
+     * Construct a local Id from a global Id
+     * 
+     * @param globalId  the global id
+     * @return  the local id
+     */
+    protected String createLocalId(String globalId)
+    {
+        return BPMEngineRegistry.getLocalId(globalId);
+    }
+}