141556#13 - messagehandler pulled out of CompilerAdapter and changed to have nothing to do with holders (since it doesnt need to store messages)

ajde/src/org/aspectj/ajde/internal/AjdeMessageHandler.java

@@ -0,0 +1,71 @@
+/********************************************************************
+ * Copyright (c) 2006 Contributors. All rights reserved. 
+ * This program and the accompanying materials are made available 
+ * under the terms of the Eclipse Public License v1.0 
+ * which accompanies this distribution and is available at 
+ * http://eclipse.org/legal/epl-v10.html 
+ *  
+ * Contributors: IBM Corporation - initial API and implementation 
+ * 				 Helen Hawkins   - moved into separate class
+ *******************************************************************/
+package org.aspectj.ajde.internal;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.aspectj.ajde.Ajde;
+import org.aspectj.ajde.TaskListManager;
+import org.aspectj.bridge.AbortException;
+import org.aspectj.bridge.IMessage;
+import org.aspectj.bridge.IMessageHandler;
+import org.aspectj.bridge.IMessage.Kind;
+
+/**
+ * IMessageHandler used by Ajde. No messages are stored
+ * within the handler as it delegates to the TaskListManager.
+ * By default IMessage.INFO and IMessage.WEAVEINFO messages
+ * are ignored.
+ */
+public class AjdeMessageHandler implements IMessageHandler {
+
+	private TaskListManager taskListManager;
+	private List ignoring;
+	
+	public AjdeMessageHandler() {
+        ignoring = new ArrayList();
+        ignore(IMessage.INFO);
+        ignore(IMessage.WEAVEINFO);
+		this.taskListManager = Ajde.getDefault().getTaskListManager();
+	}	
+
+	public boolean handleMessage(IMessage message) throws AbortException {
+        IMessage.Kind kind = message.getKind(); 
+        if (kind == IMessage.ABORT) return handleAbort(message);
+        if (isIgnoring(kind)) {
+            return true;
+        }	
+		taskListManager.addSourcelineTask(message);
+		return true;
+	}
+	
+	private boolean handleAbort(IMessage abortMessage) {
+		throw new AbortException(abortMessage);
+	}
+
+	public void dontIgnore(Kind kind) {
+	    if (null != kind) {
+	        ignoring.remove(kind);
+	    }
+	}
+
+	public boolean isIgnoring(Kind kind) {
+		return ((null != kind) && (ignoring.contains(kind)));
+	}
+	
+	public void ignore(Kind kind) {
+	    if ((null != kind) && (!ignoring.contains(kind))) {
+	        ignoring.add(kind);
+	    }	
+	}
+	
+}

ajde/src/org/aspectj/ajde/internal/CompilerAdapter.java

@@ -594,7 +594,7 @@ public class CompilerAdapter {
 			if (Ajde.getDefault().getMessageHandler() != null) {
 				this.messageHandler = Ajde.getDefault().getMessageHandler();
 			} else {
-				this.messageHandler = new MessageHandlerAdapter();
+				this.messageHandler = new AjdeMessageHandler();
 			}
 			buildManager = new AjBuildManager(messageHandler);
 			buildManager.environmentSupportsIncrementalCompilation(true);
@@ -603,30 +603,6 @@ public class CompilerAdapter {
 		}
 	}
 	
-	class MessageHandlerAdapter extends MessageHandler {
-		private TaskListManager taskListManager;
-
-		public MessageHandlerAdapter() {
-			this.taskListManager = Ajde.getDefault().getTaskListManager();
-			ignore(IMessage.INFO);
-		}	
-
-		public boolean handleMessage(IMessage message) throws AbortException {
-            IMessage.Kind kind = message.getKind(); 
-            if (kind == IMessage.ABORT) return handleAbort(message);
-            if (isIgnoring(kind)) {
-                    return true;
-            }
-			
-			taskListManager.addSourcelineTask(message);
-			return true;// return super.handleMessage(message); // also store...	
-		}
-		
-		private boolean handleAbort(IMessage abortMessage) {
-			throw new AbortException(abortMessage);
-		}
-	}
-
 	public void setState(AjState buildState) {
 		buildManager.setState(buildState);	
 		buildManager.setStructureModel(buildState.getStructureModel());

tests/src/org/aspectj/systemtest/incremental/tools/MultiProjectIncrementalTests.java

@@ -1461,10 +1461,16 @@ public class MultiProjectIncrementalTests extends AbstractMultiProjectIncrementa
 		initialiseProject("PR141556");
 		build("PR141556");
 		IMessageHandler handler = AjdeManager.getMessageHandler();
-		assertTrue("expected the handler to be an IMessageHolder but wasn't ",
+		// the handler used to be an IMessageHolder (extended MessageHandler)
+		// which stored the messages, consequently we checked that none
+		// were being stored. Since we no longer stored any messages (fix
+		// for bug 141564) it was unnecessary to be an IMessageHolder as all the
+		// IMessageHolder methods in MessageHander used the list of stored
+		// messages. Therefore, rather than checking that the list of messages
+		// is empty we can check that we're an IMessageHandler but not an
+		// IMessageHolder.
+		assertFalse("expected the handler not to be an IMessageHolder but was ",
 				handler instanceof IMessageHolder);
-		IMessage[] msgs = ((IMessageHolder)AjdeManager.getMessageHandler()).getMessages(null,true);
-		assertTrue("There should be no messages but I found: "+msgs.length,msgs.length==0);
 		
 		List tasklistMessages = MyTaskListManager.getWarningMessages();
 		assertTrue("Should be one message but found "+tasklistMessages.size(),tasklistMessages.size()==1);