diff options
Diffstat (limited to 'src/main/java/org/openslx/filetransfer/util/ChunkList.java')
| -rw-r--r-- | src/main/java/org/openslx/filetransfer/util/ChunkList.java | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/src/main/java/org/openslx/filetransfer/util/ChunkList.java b/src/main/java/org/openslx/filetransfer/util/ChunkList.java index bd927b1..27f8e8c 100644 --- a/src/main/java/org/openslx/filetransfer/util/ChunkList.java +++ b/src/main/java/org/openslx/filetransfer/util/ChunkList.java @@ -1,5 +1,6 @@ package org.openslx.filetransfer.util; +import java.io.FileOutputStream; import java.io.IOException; import java.nio.ByteBuffer; import java.util.ArrayList; @@ -92,7 +93,7 @@ public class ChunkList * Get CRC32 list in DNBD3 format. All checksums are little * endian and prefixed by the crc32 sum of the list itself. */ - public synchronized byte[] getDnbd3Crc32List() throws IOException + public synchronized byte[] getDnbd3Crc32List() throws IllegalStateException { byte buffer[] = new byte[ allChunks.size() * 4 + 4 ]; // 4 byte per chunk plus master long nextChunkOffset = 0; @@ -143,7 +144,6 @@ public class ChunkList * Returns true if this list contains a chunk with state MISSING, * which means the chunk doesn't have a sha1 known to exist in * another image. - * @return */ public synchronized boolean hasLocallyMissingChunk() { @@ -521,4 +521,21 @@ public class ChunkList return chunk.sha1sum != null && Arrays.equals( FileChunk.NULL_BLOCK_SHA1, chunk.sha1sum ); } + /** + * Write DNBD3 CRC32 list to given file. + * + * @throws IllegalStateException + * @throws IOException + */ + public void writeCrc32List( String crcfile ) throws IllegalStateException, IOException + { + byte[] dnbd3Crc32List = null; + dnbd3Crc32List = getDnbd3Crc32List(); + if ( dnbd3Crc32List != null ) { + try ( FileOutputStream fos = new FileOutputStream( crcfile ) ) { + fos.write( dnbd3Crc32List ); + } + } + } + } |