From 4a53ac4202af0d7ee667474c7a1a4820e32a98cf Mon Sep 17 00:00:00 2001
From: mwebster <mwebster>
Date: Wed, 16 Aug 2006 14:52:44 +0000
Subject: Bug 150487 "Tracing and Logging Framework" (improve formatting for
 arrays and Collections)

---
 .../org/aspectj/weaver/tools/AbstractTrace.java    | 16 +++++++++++++
 .../org/aspectj/weaver/AbstractTraceTest.java      | 27 +++++++++++++++++++++-
 2 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/weaver/src/org/aspectj/weaver/tools/AbstractTrace.java b/weaver/src/org/aspectj/weaver/tools/AbstractTrace.java
index 0ca742503..893650b1f 100644
--- a/weaver/src/org/aspectj/weaver/tools/AbstractTrace.java
+++ b/weaver/src/org/aspectj/weaver/tools/AbstractTrace.java
@@ -11,7 +11,9 @@
 package org.aspectj.weaver.tools;
 
 import java.io.File;
+import java.lang.reflect.Array;
 import java.text.SimpleDateFormat;
+import java.util.Collection;
 import java.util.Date;
 
 public abstract class AbstractTrace implements Trace {
@@ -126,6 +128,12 @@ public abstract class AbstractTrace implements Trace {
 			    || obj instanceof File
 			    || obj instanceof StringBuffer
 		    ) return obj;
+		else if (obj.getClass().isArray()) {
+			return formatArray(obj);
+		}
+		else if (obj instanceof Collection) {
+			return formatCollection((Collection)obj);
+		}
 		else try {
 			
 			/* Classes can provide an alternative implementation of toString() */
@@ -142,6 +150,14 @@ public abstract class AbstractTrace implements Trace {
 			return obj.getClass().getName();
 		}
 	}
+	
+	protected String formatArray (Object obj) {
+		return obj.getClass().getComponentType().getName() + "[" + Array.getLength(obj) + "]"; 
+	}
+	
+	protected String formatCollection (Collection c) {
+		return c.getClass().getName() + "(" + c.size() + ")"; 
+	}
 
 	/** 
 	 * Format arguments into a comma separated list
diff --git a/weaver/testsrc/org/aspectj/weaver/AbstractTraceTest.java b/weaver/testsrc/org/aspectj/weaver/AbstractTraceTest.java
index abdff5fcb..b28323a91 100644
--- a/weaver/testsrc/org/aspectj/weaver/AbstractTraceTest.java
+++ b/weaver/testsrc/org/aspectj/weaver/AbstractTraceTest.java
@@ -10,12 +10,15 @@
  *******************************************************************************/
 package org.aspectj.weaver;
 
+import java.util.ArrayList;
+
 import junit.framework.TestCase;
 
 import org.aspectj.weaver.tools.AbstractTrace;
 import org.aspectj.weaver.tools.DefaultTrace;
+import org.aspectj.weaver.tools.Traceable;
 
-public class AbstractTraceTest extends TestCase {
+public abstract class AbstractTraceTest extends TestCase {
 
 	protected AbstractTrace trace;
 
@@ -28,6 +31,28 @@ public class AbstractTraceTest extends TestCase {
 		trace.enter("testEnterWithThisAndArgs",this,new Object[] { "arg1", "arg2" });
 	}
 
+	public void testEnterWithThisAndArray() {
+		Object arg1 = new String[] { "s1", "s2" };
+		Object arg2 = new char[] { 'a', 'b', 'c' };
+		trace.enter("testEnterWithThisAndArgs",this,new Object[] { arg1, arg2 });
+	}
+
+	public void testEnterWithThisAndCollection() {
+		Object arg1 = new ArrayList();
+		trace.enter("testEnterWithThisAndArgs",this,new Object[] { arg1 });
+	}
+
+	public void testEnterWithThisAndTraceable () {
+		Object arg1 = new Traceable() {
+
+			public String toTraceString() {
+				return "Traceable";
+			}
+			
+		};
+		trace.enter("testEnterWithThisAndArgs",this,new Object[] { arg1 });
+	}
+
 	public void testEnterWithThis() {
 		trace.enter("testEnterWithThis",this);
 	}
-- 
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