本文整理汇总了Java中org.apache.hadoop.hdfs.util.AtomicFileOutputStream类的典型用法代码示例。如果您正苦于以下问题：Java AtomicFileOutputStream类的具体用法？Java AtomicFileOutputStream怎么用？Java AtomicFileOutputStream使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
AtomicFileOutputStream类属于org.apache.hadoop.hdfs.util包，在下文中一共展示了AtomicFileOutputStream类的4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: writeTransactionIdFile
import org.apache.hadoop.hdfs.util.AtomicFileOutputStream; //导入依赖的package包/类
/**
* Write last checkpoint time into a separate file.
*
* @param sd
* @throws IOException
*/
void writeTransactionIdFile(StorageDirectory sd, long txid) throws IOException {
if (txid < -1) {
// -1 is valid when formatting
throw new IOException("Bad txid: " + txid);
}
File txIdFile = getStorageFile(sd, NameNodeFile.SEEN_TXID);
OutputStream fos = new AtomicFileOutputStream(txIdFile);
try {
fos.write(String.valueOf(txid).getBytes());
fos.write('\n');
fos.close();
fos = null;
} finally {
IOUtils.cleanup(LOG, fos);
}
}
示例2: persistPaxosData
import org.apache.hadoop.hdfs.util.AtomicFileOutputStream; //导入依赖的package包/类
/**
* Persist data for recovering the given segment from disk.
*/
private void persistPaxosData(long segmentTxId,
PersistedRecoveryPaxosData newData) throws IOException {
File f = storage.getPaxosFile(segmentTxId);
boolean success = false;
AtomicFileOutputStream fos = new AtomicFileOutputStream(f);
try {
newData.writeDelimitedTo(fos);
fos.write('\n');
// Write human-readable data after the protobuf. This is only
// to assist in debugging -- it's not parsed at all.
OutputStreamWriter writer = new OutputStreamWriter(fos, Charsets.UTF_8);
writer.write(String.valueOf(newData));
writer.write('\n');
writer.flush();
fos.flush();
success = true;
} finally {
if (success) {
IOUtils.closeStream(fos);
} else {
fos.abort();
}
}
}
示例3: persistPaxosData
import org.apache.hadoop.hdfs.util.AtomicFileOutputStream; //导入依赖的package包/类
/**
* Persist data for recovering the given segment from disk.
*/
private void persistPaxosData(long segmentTxId,
PersistedRecoveryPaxosData newData) throws IOException {
File f = journalStorage.getPaxosFile(segmentTxId);
boolean success = false;
AtomicFileOutputStream fos = new AtomicFileOutputStream(f);
try {
newData.writeDelimitedTo(fos);
fos.write('\n');
// Write human-readable data after the protobuf. This is only
// to assist in debugging -- it's not parsed at all.
OutputStreamWriter writer = new OutputStreamWriter(fos, Charsets.UTF_8);
writer.write(String.valueOf(newData));
writer.write('\n');
writer.flush();
fos.flush();
success = true;
} finally {
if (success) {
IOUtils.closeStream(fos);
} else {
fos.abort();
}
}
}
示例4: writeCheckpointTime
import org.apache.hadoop.hdfs.util.AtomicFileOutputStream; //导入依赖的package包/类
/**
* Write last checkpoint time into a separate file.
*
* @param sd
* @throws IOException
*/
void writeCheckpointTime(StorageDirectory sd) throws IOException {
if (checkpointTime < 0L)
return; // do not write negative time
File timeFile = getImageFile(sd, NameNodeFile.TIME);
DataOutputStream out = new DataOutputStream(
new AtomicFileOutputStream(timeFile));
try {
out.writeLong(checkpointTime);
} finally {
out.close();
}
}