svn commit: r126360 - /lenya/trunk/src/java/org/apache/lenya/cms/workflow/usecases /lenya/trunk/src/java/org/apache/lenya/cms/workflow/usecases/InvokeWorkflow.java

[an...@apache.org]

Author: andreas
Date: Tue Jan 25 02:15:00 2005
New Revision: 126360

URL: http://svn.apache.org/viewcvs?view=rev&rev=126360
Log:
added InvokeWorkflow usecase handler
Added:
   lenya/trunk/src/java/org/apache/lenya/cms/workflow/usecases/
   lenya/trunk/src/java/org/apache/lenya/cms/workflow/usecases/InvokeWorkflow.java

Added: lenya/trunk/src/java/org/apache/lenya/cms/workflow/usecases/InvokeWorkflow.java
Url: http://svn.apache.org/viewcvs/lenya/trunk/src/java/org/apache/lenya/cms/workflow/usecases/InvokeWorkflow.java?view=auto&rev=126360
==============================================================================
--- (empty file)
+++ lenya/trunk/src/java/org/apache/lenya/cms/workflow/usecases/InvokeWorkflow.java	Tue Jan 25 02:15:00 2005
@@ -0,0 +1,67 @@
+/*
+ * Copyright  1999-2004 The Apache Software Foundation
+ *
+ *  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.apache.lenya.cms.workflow.usecases;
+
+import org.apache.lenya.cms.usecase.DocumentUsecase;
+import org.apache.lenya.cms.workflow.WorkflowFactory;
+import org.apache.lenya.workflow.Event;
+import org.apache.lenya.workflow.WorkflowInstance;
+
+/**
+ * Invoke a workflow event on the current document. The event is obtained from
+ * the <code>lenya.event</code> request parameter.
+ * 
+ * @version $Id:$
+ */
+public class InvokeWorkflow extends DocumentUsecase {
+
+    protected static final String EVENT = "lenya.event";
+
+    /**
+     * @return The workflow event to use.
+     */
+    protected String getEvent() {
+        return getParameterAsString(EVENT);
+    }
+
+    /**
+     * @see org.apache.lenya.cms.usecase.AbstractUsecase#doCheckPreconditions()
+     */
+    protected void doCheckPreconditions() throws Exception {
+        super.doCheckPreconditions();
+        String eventName = getParameterAsString(EVENT);
+
+        WorkflowInstance instance = WorkflowFactory.newInstance()
+                .buildInstance(getSourceDocument());
+        Event event = getExecutableEvent(instance, eventName);
+
+        if (event == null) {
+            addErrorMessage("The event [" + eventName + "] is not executable on document ["
+                    + getSourceDocument() + "].");
+        }
+    }
+
+    /**
+     * @see org.apache.lenya.cms.usecase.AbstractUsecase#doExecute()
+     */
+    protected void doExecute() throws Exception {
+        super.doExecute();
+
+        String eventName = getParameterAsString(EVENT);
+        triggerWorkflow(eventName);
+    }
+}
\ No newline at end of file

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