public static Message createMessage(
String keyspace, byte[] key, String columnFamily, List<ColumnFamily> columnFamilies) {
ColumnFamily baseColumnFamily;
DataOutputBuffer bufOut = new DataOutputBuffer();
RowMutation rm;
Message message;
Column column;
/* Get the first column family from list, this is just to get past validation */
baseColumnFamily =
new ColumnFamily(
ColumnFamilyType.Standard,
DatabaseDescriptor.getComparator(keyspace, columnFamily),
DatabaseDescriptor.getSubComparator(keyspace, columnFamily),
CFMetaData.getId(keyspace, columnFamily));
for (ColumnFamily cf : columnFamilies) {
bufOut.reset();
ColumnFamily.serializer().serializeWithIndexes(cf, bufOut);
byte[] data = new byte[bufOut.getLength()];
System.arraycopy(bufOut.getData(), 0, data, 0, bufOut.getLength());
column = new Column(FBUtilities.toByteBuffer(cf.id()), ByteBuffer.wrap(data), 0);
baseColumnFamily.addColumn(column);
}
rm = new RowMutation(keyspace, ByteBuffer.wrap(key));
rm.add(baseColumnFamily);
try {
/* Make message */
message = rm.makeRowMutationMessage(StorageService.Verb.BINARY, MessagingService.version_);
} catch (IOException e) {
throw new RuntimeException(e);
}
return message;
}
private static byte[] pair(BytesWritable a, BytesWritable b) {
byte[] pairData = new byte[a.getLength() + b.getLength()];
System.arraycopy(a.getBytes(), 0, pairData, 0, a.getLength());
System.arraycopy(b.getBytes(), 0, pairData, a.getLength(), b.getLength());
return pairData;
}