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Posted to commits@lucene.apache.org by jp...@apache.org on 2014/08/18 17:02:57 UTC

svn commit: r1618627 - in /lucene/dev/branches/branch_4x: ./ lucene/ lucene/core/ lucene/core/src/java/org/apache/lucene/util/CharsRefBuilder.java lucene/core/src/test/org/apache/lucene/util/TestCharsRefBuilder.java

Author: jpountz
Date: Mon Aug 18 15:02:57 2014
New Revision: 1618627

URL: http://svn.apache.org/r1618627
Log:
LUCENE-5892: CharsRefBuilder implements Accountable.

Added:
    lucene/dev/branches/branch_4x/lucene/core/src/test/org/apache/lucene/util/TestCharsRefBuilder.java
      - copied unchanged from r1618625, lucene/dev/trunk/lucene/core/src/test/org/apache/lucene/util/TestCharsRefBuilder.java
Modified:
    lucene/dev/branches/branch_4x/   (props changed)
    lucene/dev/branches/branch_4x/lucene/   (props changed)
    lucene/dev/branches/branch_4x/lucene/core/   (props changed)
    lucene/dev/branches/branch_4x/lucene/core/src/java/org/apache/lucene/util/CharsRefBuilder.java

Modified: lucene/dev/branches/branch_4x/lucene/core/src/java/org/apache/lucene/util/CharsRefBuilder.java
URL: http://svn.apache.org/viewvc/lucene/dev/branches/branch_4x/lucene/core/src/java/org/apache/lucene/util/CharsRefBuilder.java?rev=1618627&r1=1618626&r2=1618627&view=diff
==============================================================================
--- lucene/dev/branches/branch_4x/lucene/core/src/java/org/apache/lucene/util/CharsRefBuilder.java (original)
+++ lucene/dev/branches/branch_4x/lucene/core/src/java/org/apache/lucene/util/CharsRefBuilder.java Mon Aug 18 15:02:57 2014
@@ -17,13 +17,16 @@ package org.apache.lucene.util;
  * limitations under the License.
  */
 
+import java.io.IOException;
 import java.util.Arrays;
 
 /**
  * A builder for {@link CharsRef} instances.
  * @lucene.internal
  */
-public class CharsRefBuilder {
+public class CharsRefBuilder implements Appendable {
+
+  private static final String NULL_STRING = "null";
 
   private final CharsRef ref;
 
@@ -64,6 +67,33 @@ public class CharsRefBuilder {
     ref.length = 0;
   }
 
+  @Override
+  public Appendable append(CharSequence csq) {
+    if (csq == null) {
+      return append(NULL_STRING);
+    }
+    return append(csq, 0, csq.length());
+  }
+
+  @Override
+  public Appendable append(CharSequence csq, int start, int end) {
+    if (csq == null) {
+      return append(NULL_STRING);
+    }
+    grow(ref.length + end - start);
+    for (int i = start; i < end; ++i) {
+      setCharAt(ref.length++, csq.charAt(i));
+    }
+    return this;
+  }
+
+  @Override
+  public Appendable append(char c) {
+    grow(ref.length + 1);
+    setCharAt(ref.length++, c);
+    return this;
+  }
+
   /**
    * Copies the given {@link CharsRef} referenced content into this instance.
    */