本文整理汇总了Java中org.apache.hadoop.hdfs.protocol.LocatedBlock.getBlockSize方法的典型用法代码示例。如果您正苦于以下问题：Java LocatedBlock.getBlockSize方法的具体用法？Java LocatedBlock.getBlockSize怎么用？Java LocatedBlock.getBlockSize使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.hdfs.protocol.LocatedBlock的用法示例。
在下文中一共展示了LocatedBlock.getBlockSize方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: DFSOutputStream
import org.apache.hadoop.hdfs.protocol.LocatedBlock; //导入方法依赖的package包/类
/** Construct a new output stream for append. */
private DFSOutputStream(DFSClient dfsClient, String src,
EnumSet<CreateFlag> flags, Progressable progress, LocatedBlock lastBlock,
HdfsFileStatus stat, DataChecksum checksum) throws IOException {
this(dfsClient, src, progress, stat, checksum);
initialFileSize = stat.getLen(); // length of file when opened
this.shouldSyncBlock = flags.contains(CreateFlag.SYNC_BLOCK);
boolean toNewBlock = flags.contains(CreateFlag.NEW_BLOCK);
// The last partial block of the file has to be filled.
if (!toNewBlock && lastBlock != null) {
// indicate that we are appending to an existing block
bytesCurBlock = lastBlock.getBlockSize();
streamer = new DataStreamer(lastBlock, stat, bytesPerChecksum);
} else {
computePacketChunkSize(dfsClient.getConf().writePacketSize,
bytesPerChecksum);
streamer = new DataStreamer(stat,
lastBlock != null ? lastBlock.getBlock() : null);
}
this.fileEncryptionInfo = stat.getFileEncryptionInfo();
}
示例2: fetchLocatedBlocksAndGetLastBlockLength
import org.apache.hadoop.hdfs.protocol.LocatedBlock; //导入方法依赖的package包/类
private long fetchLocatedBlocksAndGetLastBlockLength() throws IOException {
final LocatedBlocks newInfo = dfsClient.getLocatedBlocks(src, 0);
if (DFSClient.LOG.isDebugEnabled()) {
DFSClient.LOG.debug("newInfo = " + newInfo);
}
if (newInfo == null) {
throw new IOException("Cannot open filename " + src);
}
if (locatedBlocks != null) {
Iterator<LocatedBlock> oldIter = locatedBlocks.getLocatedBlocks().iterator();
Iterator<LocatedBlock> newIter = newInfo.getLocatedBlocks().iterator();
while (oldIter.hasNext() && newIter.hasNext()) {
if (! oldIter.next().getBlock().equals(newIter.next().getBlock())) {
throw new IOException("Blocklist for " + src + " has changed!");
}
}
}
locatedBlocks = newInfo;
long lastBlockBeingWrittenLength = 0;
if (!locatedBlocks.isLastBlockComplete()) {
final LocatedBlock last = locatedBlocks.getLastLocatedBlock();
if (last != null) {
if (last.getLocations().length == 0) {
if (last.getBlockSize() == 0) {
// if the length is zero, then no data has been written to
// datanode. So no need to wait for the locations.
return 0;
}
return -1;
}
final long len = readBlockLength(last);
last.getBlock().setNumBytes(len);
lastBlockBeingWrittenLength = len;
}
}
fileEncryptionInfo = locatedBlocks.getFileEncryptionInfo();
return lastBlockBeingWrittenLength;
}