LUCENE-5275: Change AttributeSource.toString to display the current state of attributes

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1531376 13f79535-47bb-0310-9956-ffa450edef68

lucene/CHANGES.txt

@@ -143,6 +143,9 @@ API Changes:
   with IndexSearcher when an ExecutorService is specified.
   (Ryan Ernst, Mike McCandless, Robert Muir)
 
+* LUCENE-5275: Change AttributeSource.toString() to display the current
+  state of attributes. (Robert Muir)
+
 Optimizations
 
 * LUCENE-5225: The ToParentBlockJoinQuery only keeps tracks of the the child

lucene/core/src/java/org/apache/lucene/util/AttributeSource.java

@@ -501,4 +501,13 @@ public class AttributeSource {
     }
   }
 
+  /**
+   * Returns a string consisting of the class's simple name, the hex representation of the identity hash code,
+   * and the current reflection of all attributes.
+   * @see #reflectAsString(boolean)
+   */
+  @Override
+  public String toString() {
+    return getClass().getSimpleName() + '@' + Integer.toHexString(System.identityHashCode(this)) + " " + reflectAsString(false);
+  }
 }