protected void prepare() { DatanodeReg dr = new DatanodeReg(); dr.setDatanodeNum(dataNum); dr.init(); dr.runTest(); FileCreator fc = new FileCreator(); fc.setParams(threadNum, fileNum); fc.init(); fc.runTest(); fidarray = fc.getCreatedFileIds(); BlockAllocator ba = new BlockAllocator(); ba.setParams(threadNum, blockNum, fidarray); ba.init(); ba.runTest(); blkarray = ba.getBlockIdarray(); }