Preparations/changes for global image sync

1 files changed, 34 insertions, 0 deletions

diff --git a/src/main/java/org/openslx/util/ThriftUtil.java b/src/main/java/org/openslx/util/ThriftUtil.java
new file mode 100644
index 0000000..58019a7
--- /dev/null
+++ b/src/main/java/org/openslx/util/ThriftUtil.java
@@ -0,0 +1,34 @@
+package org.openslx.util;
+
+import java.nio.ByteBuffer;
+import java.util.ArrayList;
+import java.util.List;
+
+public class ThriftUtil {
+
+	public static List<byte[]> unwrapByteBufferList(List<ByteBuffer> blockHashes) {
+		if (blockHashes == null || blockHashes.isEmpty())
+			return null;
+		List<byte[]> hashList = new ArrayList<>(blockHashes.size());
+		for (ByteBuffer hash : blockHashes) {
+			byte[] buffer = new byte[hash.remaining()];
+			hash.mark();
+			hash.get(buffer);
+			hash.reset();
+			hashList.add(buffer);
+		}
+		return hashList;
+	}
+
+	public static byte[] unwrapByteBuffer(ByteBuffer buffer) {
+		byte[] byteArray = null;
+		if (buffer != null) {
+			byteArray = new byte[buffer.remaining()];
+			buffer.mark();
+			buffer.get(byteArray);
+			buffer.reset();
+		}
+		return byteArray;
+	}
+
+}