Add toString

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/lang/trunk@424611 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/commons/lang/text/StrTokenizer.java

@@ -1068,13 +1068,17 @@ public class StrTokenizer implements ListIterator, Cloneable {
      * @return the string content being parsed
      */
     public String getContent() {
+        if (chars == null) {
+            return null;
+        }
         return new String(chars);
     }
 
     //-----------------------------------------------------------------------
     /**
-     * Creates a new instance of this Tokenizer. The new instance is reset so that it will be at the start of the token
-     * list. If a {@link CloneNotSupportedException} is caught, return <code>null</code>.
+     * Creates a new instance of this Tokenizer. The new instance is reset so
+     * that it will be at the start of the token list.
+     * If a {@link CloneNotSupportedException} is caught, return <code>null</code>.
      * 
      * @return a new instance of this Tokenizer which has been reset.
      */
@@ -1087,8 +1091,8 @@ public class StrTokenizer implements ListIterator, Cloneable {
     }
 
     /**
-     * Creates a new instance of this Tokenizer. The new instance is reset so that it will be at the start of the token
-     * list.
+     * Creates a new instance of this Tokenizer. The new instance is reset so that
+     * it will be at the start of the token list.
      * 
      * @return a new instance of this Tokenizer which has been reset.
      * @throws CloneNotSupportedException if there is a problem cloning
@@ -1102,4 +1106,18 @@ public class StrTokenizer implements ListIterator, Cloneable {
         return cloned;
     }
 
+    //-----------------------------------------------------------------------
+    /**
+     * Gets the String content that the tokenizer is parsing.
+     *
+     * @return the string content being parsed
+     */
+    public String toString() {
+        if (tokens == null) {
+            return "StrTokenizer[not tokenized yet]";
+        } else {
+            return "StrTokenizer" + getTokenList();
+        }
+    }
+
 }

src/test/org/apache/commons/lang/text/StrTokenizerTest.java

@@ -536,6 +536,9 @@ public class StrTokenizerTest extends TestCase {
 
         tok = new StrTokenizer(input.toCharArray());
         assertEquals(input, tok.getContent());
+        
+        tok = new StrTokenizer();
+        assertEquals(null, tok.getContent());
     }
 
     //-----------------------------------------------------------------------
@@ -830,4 +833,12 @@ public class StrTokenizerTest extends TestCase {
         assertEquals("a", tkn.next());
     }
 
+    //-----------------------------------------------------------------------
+    public void testToString() {
+        StrTokenizer tkn = new StrTokenizer("a b c d e");
+        assertEquals("StrTokenizer[not tokenized yet]", tkn.toString());
+        tkn.next();
+        assertEquals("StrTokenizer[a, b, c, d, e]", tkn.toString());
+    }
+
 }