Add ByteBuffer to the interface to prepare for less copying of data.

1 files changed, 10 insertions, 0 deletions

diff --git a/config/src/main/java/com/yahoo/vespa/config/LZ4PayloadCompressor.java b/config/src/main/java/com/yahoo/vespa/config/LZ4PayloadCompressor.java
index 688d6d54888..03e08e039ae 100644
--- a/config/src/main/java/com/yahoo/vespa/config/LZ4PayloadCompressor.java
+++ b/config/src/main/java/com/yahoo/vespa/config/LZ4PayloadCompressor.java
@@ -5,6 +5,8 @@ import com.yahoo.compress.CompressionType;
 import com.yahoo.compress.Compressor;
 import com.yahoo.vespa.config.util.ConfigUtils;
 
+import java.nio.ByteBuffer;
+
 /**
  * Wrapper for LZ4 compression that selects compression level based on properties.
  *
@@ -24,9 +26,17 @@ public class LZ4PayloadCompressor {
     public byte[] compress(byte[] input) {
         return compressor.compressUnconditionally(input);
     }
+    public byte[] compress(ByteBuffer input) {
+        return compressor.compressUnconditionally(input);
+    }
 
     public byte [] decompress(byte[] input, int uncompressedLen) {
         return compressor.decompressUnconditionally(input, 0, uncompressedLen);
     }
+    public byte [] decompress(ByteBuffer input, int uncompressedLen) {
+        ByteBuffer uncompressed = ByteBuffer.allocate(uncompressedLen);
+        compressor.decompressUnconditionally(input, uncompressed);
+        return uncompressed.array();
+    }
 
 }