From 1ad53161c35dfbd2c08b1f124d237f5f3cad9110 Mon Sep 17 00:00:00 2001
From: jdemendi <jdemendi@localhost>
Date: Thu, 19 Jul 2007 07:46:13 +0000
Subject: [PATCH] This set of changes is aiming at having a more consistent and clean code when an operation is canceled.

---
 opends/src/server/org/opends/server/core/DeleteOperationBasis.java |  148 ++++++++++++++++++++++++++++++++++---------------
 1 files changed, 103 insertions(+), 45 deletions(-)

diff --git a/opends/src/server/org/opends/server/core/DeleteOperationBasis.java b/opends/src/server/org/opends/server/core/DeleteOperationBasis.java
index a930178..32cbaa8 100644
--- a/opends/src/server/org/opends/server/core/DeleteOperationBasis.java
+++ b/opends/src/server/org/opends/server/core/DeleteOperationBasis.java
@@ -469,13 +469,17 @@
     setProcessingStartTime();
 
     // Check for and handle a request to cancel this operation.
-    if (getCancelRequest() != null)
+    if (cancelRequest != null)
     {
-      indicateCancelled(getCancelRequest());
+      indicateCancelled(cancelRequest);
       setProcessingStopTime();
       return;
     }
 
+
+    // This flag is set to true as soon as a workflow has been executed.
+    boolean workflowExecuted = false;
+
     // Create a labeled block of code that we can break out of if a problem is
     // detected.
 deleteProcessing:
@@ -514,14 +518,10 @@
       logDeleteRequest(this);
 
 
-      // Check for and handle a request to cancel this operation.
-      if (getCancelRequest() != null)
+      // Check for a request to cancel this operation.
+      if (cancelRequest != null)
       {
-        indicateCancelled(getCancelRequest());
-        setProcessingStopTime();
-        logDeleteResponse(this);
-        pluginConfigManager.invokePostResponseDeletePlugins(this);
-        return;
+        break deleteProcessing;
       }
 
 
@@ -545,18 +545,37 @@
         break deleteProcessing;
       }
       workflow.execute(this);
+      workflowExecuted = true;
+
+    } // end of processing block
+
+
+    // Check for a terminated connection.
+    if (getCancelResult() == CancelResult.CANCELED)
+    {
+      // Stop the processing timer.
+      setProcessingStopTime();
+
+      // Log the add response message.
+      logDeleteResponse(this);
+
+      return;
     }
 
     // Check for and handle a request to cancel this operation.
-    if ((getCancelRequest() != null) ||
-        (getCancelResult() == CancelResult.CANCELED))
+    if (cancelRequest != null)
     {
-      if (getCancelRequest() != null){
-        indicateCancelled(getCancelRequest());
-      }
+      indicateCancelled(cancelRequest);
+
+      // Stop the processing timer.
       setProcessingStopTime();
+
+      // Log the delete response message.
       logDeleteResponse(this);
-      invokePostResponsePlugins();
+
+      // Invoke the post-response delete plugins.
+      invokePostResponsePlugins(workflowExecuted);
+
       return;
     }
 
@@ -566,18 +585,82 @@
     // Stop the processing timer.
     setProcessingStopTime();
 
-
     // Send the delete response to the client.
     getClientConnection().sendResponse(this);
 
-
     // Log the delete response.
     logDeleteResponse(this);
 
-    // Check wether there are local operations in attachments
+    // Notifies any persistent searches that might be registered with the
+    // server.
+    notifyPersistentSearches(workflowExecuted);
+
+    // Invoke the post-response delete plugins.
+    invokePostResponsePlugins(workflowExecuted);
+  }
+
+
+  /**
+   * Invokes the post response plugins. If a workflow has been executed
+   * then invoke the post response plugins provided by the workflow
+   * elements of the worklfow, otherwise invoke the post reponse plugins
+   * that have been registered with the current operation.
+   *
+   * @param workflowExecuted <code>true</code> if a workflow has been
+   *                         executed
+   */
+  private void invokePostResponsePlugins(boolean workflowExecuted)
+  {
+    // Get the plugin config manager that will be used for invoking plugins.
+    PluginConfigManager pluginConfigManager =
+      DirectoryServer.getPluginConfigManager();
+
+    // Invoke the post response plugins
+    if (workflowExecuted)
+    {
+      // Invoke the post response plugins that have been registered by
+      // the workflow elements
+      List localOperations =
+        (List)getAttachment(Operation.LOCALBACKENDOPERATIONS);
+
+      if (localOperations != null)
+      {
+        for (Object localOp : localOperations)
+        {
+          LocalBackendDeleteOperation localOperation =
+            (LocalBackendDeleteOperation)localOp;
+          pluginConfigManager.invokePostResponseDeletePlugins(localOperation);
+        }
+      }
+    }
+    else
+    {
+      // Invoke the post response plugins that have been registered with
+      // the current operation
+      pluginConfigManager.invokePostResponseDeletePlugins(this);
+    }
+  }
+
+
+  /**
+   * Notifies any persistent searches that might be registered with the server.
+   * If no workflow has been executed then don't notify persistent searches.
+   *
+   * @param workflowExecuted <code>true</code> if a workflow has been
+   *                         executed
+   */
+  private void notifyPersistentSearches(boolean workflowExecuted)
+  {
+    if (! workflowExecuted)
+    {
+      return;
+    }
+
     List localOperations =
       (List)getAttachment(Operation.LOCALBACKENDOPERATIONS);
-    if (localOperations != null && (! localOperations.isEmpty())){
+
+    if (localOperations != null)
+    {
       for (Object localOp : localOperations)
       {
         LocalBackendDeleteOperation localOperation =
@@ -613,13 +696,11 @@
             }
           }
         }
-
-        // Invoke the post-response delete plugins.
-        pluginConfigManager.invokePostResponseDeletePlugins(localOperation);
       }
     }
   }
 
+
   /**
    * Updates the error message and the result code of the operation.
    *
@@ -633,29 +714,6 @@
                                   String.valueOf(getEntryDN())));
   }
 
-  /**
-   * Execute the postResponseDeletePlugins.
-   */
-  private void invokePostResponsePlugins()
-  {
-    // Get the plugin config manager that will be used for invoking plugins.
-    PluginConfigManager pluginConfigManager =
-      DirectoryServer.getPluginConfigManager();
-
-    // Check wether there are local operations in attachments
-    List localOperations =
-      (List)getAttachment(Operation.LOCALBACKENDOPERATIONS);
-
-    if (localOperations != null && (! localOperations.isEmpty())){
-      for (Object localOp : localOperations)
-      {
-        LocalBackendDeleteOperation localOperation =
-          (LocalBackendDeleteOperation)localOp;
-        // Invoke the post-response delete plugins.
-        pluginConfigManager.invokePostResponseDeletePlugins(localOperation);
-      }
-    }
-  }
 
   /**
    * {@inheritDoc}

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