Package org.apache.flink.fs.osshadoop.writer

Class OSSRecoverableFsDataOutputStream

java.lang.Object

java.io.OutputStream

org.apache.flink.core.fs.FSDataOutputStream

org.apache.flink.core.fs.RecoverableFsDataOutputStream

org.apache.flink.fs.osshadoop.writer.OSSRecoverableFsDataOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

@PublicEvolving
@NotThreadSafe
public class OSSRecoverableFsDataOutputStream
extends org.apache.flink.core.fs.RecoverableFsDataOutputStream

A RecoverableFsDataOutputStream to OSS that is based on a recoverable multipart upload.

This class is NOT thread-safe. Concurrent writes tho this stream result in corrupt or lost data.

The close() method may be called concurrently when cancelling / shutting down. It will still ensure that local transient resources (like streams and temp files) are cleaned up, but will not touch data previously persisted in OSS.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.core.fs.RecoverableFsDataOutputStream

org.apache.flink.core.fs.RecoverableFsDataOutputStream.Committer

Constructor Summary

Constructors

Constructor	Description
OSSRecoverableFsDataOutputStream(long ossUploadPartSize, org.apache.flink.util.function.FunctionWithException<File,org.apache.flink.core.fs.RefCountedFileWithStream,IOException> cachedFileCreator, OSSRecoverableMultipartUpload upload, long sizeBeforeCurrentPart)

Method Summary

Modifier and Type	Method	Description
void	close()
org.apache.flink.core.fs.RecoverableFsDataOutputStream.Committer	closeForCommit()
void	flush()
long	getPos()
org.apache.flink.core.fs.RecoverableWriter.ResumeRecoverable	persist()
void	sync()
void	write(byte[] b, int off, int len)
void	write(int b)

Methods inherited from class java.io.OutputStream

nullOutputStream, write

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

OSSRecoverableFsDataOutputStream

public OSSRecoverableFsDataOutputStream(long ossUploadPartSize,
                                        org.apache.flink.util.function.FunctionWithException<File,org.apache.flink.core.fs.RefCountedFileWithStream,IOException> cachedFileCreator,
                                        OSSRecoverableMultipartUpload upload,
                                        long sizeBeforeCurrentPart)
                                 throws IOException

Throws:

IOException

Method Detail

persist

public org.apache.flink.core.fs.RecoverableWriter.ResumeRecoverable persist()
                                                                     throws IOException

Specified by:

persist in class org.apache.flink.core.fs.RecoverableFsDataOutputStream

Throws:

IOException

closeForCommit

public org.apache.flink.core.fs.RecoverableFsDataOutputStream.Committer closeForCommit()
                                                                                throws IOException

Specified by:

closeForCommit in class org.apache.flink.core.fs.RecoverableFsDataOutputStream

Throws:

IOException

getPos

public long getPos()
            throws IOException

Specified by:

getPos in class org.apache.flink.core.fs.FSDataOutputStream

Throws:

IOException

write

public void write(int b)
           throws IOException

Specified by:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] b,
                  int off,
                  int len)
           throws IOException

Overrides:

write in class OutputStream

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Specified by:

flush in class org.apache.flink.core.fs.FSDataOutputStream

Throws:

IOException

sync

public void sync()
          throws IOException

Specified by:

sync in class org.apache.flink.core.fs.FSDataOutputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Specified by:

close in class org.apache.flink.core.fs.RecoverableFsDataOutputStream

Throws:

IOException