Use an interface that is more flexible.

3 files changed, 7 insertions, 6 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 a70a2861cc8..ba2caaf3e91 100644
--- a/config/src/main/java/com/yahoo/vespa/config/LZ4PayloadCompressor.java
+++ b/config/src/main/java/com/yahoo/vespa/config/LZ4PayloadCompressor.java
@@ -26,8 +26,8 @@ public class LZ4PayloadCompressor {
         return compressor.compressUnconditionally(input);
     }
 
-    public void decompress(byte[] input, byte[] output) {
-        compressor.decompressUnconditionally(input, output);
+    public byte [] decompress(byte[] input, int uncompressedLen) {
+        return compressor.decompressUnconditionally(input, 0, uncompressedLen);
     }
 
 }
diff --git a/config/src/main/java/com/yahoo/vespa/config/protocol/Payload.java b/config/src/main/java/com/yahoo/vespa/config/protocol/Payload.java
index 88e8b21347f..13f9602f70c 100644
--- a/config/src/main/java/com/yahoo/vespa/config/protocol/Payload.java
+++ b/config/src/main/java/com/yahoo/vespa/config/protocol/Payload.java
@@ -60,8 +60,7 @@ public class Payload {
     public Payload withCompression(CompressionType requestedCompression) {
         CompressionType responseCompression = compressionInfo.getCompressionType();
         if (requestedCompression == CompressionType.UNCOMPRESSED && responseCompression == CompressionType.LZ4) {
-            byte[] buffer = new byte[compressionInfo.getUncompressedSize()];
-            compressor.decompress(data.getBytes(), buffer);
+            byte[] buffer = compressor.decompress(data.getBytes(), compressionInfo.getUncompressedSize());
             Utf8Array data = new Utf8Array(buffer);
             CompressionInfo info = CompressionInfo.create(CompressionType.UNCOMPRESSED, compressionInfo.getUncompressedSize());
             return Payload.from(data, info);
diff --git a/vespajlib/src/main/java/com/yahoo/compress/Compressor.java b/vespajlib/src/main/java/com/yahoo/compress/Compressor.java
index 77297ebcb50..bb1ca99c4ab 100644
--- a/vespajlib/src/main/java/com/yahoo/compress/Compressor.java
+++ b/vespajlib/src/main/java/com/yahoo/compress/Compressor.java
@@ -146,10 +146,12 @@ public class Compressor {
     public byte[] compressUnconditionally(byte[] input) {
         return getCompressor().compress(input);
     }
-    public void decompressUnconditionally(byte[] input, byte[] output) {
+
+    public byte [] decompressUnconditionally(byte[] input, int srcOffset, int uncompressedLen) {
         if (input.length > 0) {
-            factory.safeDecompressor().decompress(input, output);
+            return factory.fastDecompressor().decompress(input, srcOffset, uncompressedLen);
         }
+        return new byte[0];
     }
 
     public long warmup(double seconds) {