Package org.deltafi.common.nifi

Class FlowFileInputStream

java.lang.Object

java.io.InputStream

java.io.PipedInputStream

org.deltafi.common.io.WriterPipedInputStream

org.deltafi.common.nifi.FlowFileInputStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class FlowFileInputStream
extends WriterPipedInputStream

An InputStream providing a FlowFile for supplied content and attributes that is written in a separate thread.

Field Summary

Fields inherited from class java.io.PipedInputStream

buffer, in, out, PIPE_SIZE

Method Summary

Modifier and Type	Method	Description
void	close()
static FlowFileInputStream	create(InputStream inputStream, Map<String,String> attributes, long fileSize, ExecutorService executorService)	Creates a FlowFileInputStream that packages the content in the provided InputStream with the supplied attributes in a FlowFile V1, starting a separate thread for writing.
static FlowFileInputStream	create(org.apache.nifi.util.FlowFilePackager flowFilePackager, InputStream inputStream, Map<String,String> attributes, long fileSize, ExecutorService executorService)	Creates a FlowFileInputStream that packages the content in the provided InputStream with the supplied attributes using the supplied FlowFilePackager, starting a separate thread for writing.

Methods inherited from class org.deltafi.common.io.WriterPipedInputStream

create, create, runPipeWriter

Methods inherited from class java.io.PipedInputStream

available, connect, read, read, receive

Methods inherited from class java.io.InputStream

mark, markSupported, nullInputStream, read, readAllBytes, readNBytes, readNBytes, reset, skip, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Method Details

create

public static FlowFileInputStream create(InputStream inputStream,
 Map<String,String> attributes,
 long fileSize,
 ExecutorService executorService)
                                  throws IOException

Creates a FlowFileInputStream that packages the content in the provided InputStream with the supplied attributes in a FlowFile V1, starting a separate thread for writing.

Parameters:

inputStream - the InputStream containing the content

attributes - the Map of attributes to include

fileSize - the size of the content

executorService - the ExecutorService used to submit the writing thread

Returns:

the FlowFileInputStream

Throws:

IOException - if an I/O error occurs

create

public static FlowFileInputStream create(org.apache.nifi.util.FlowFilePackager flowFilePackager,
 InputStream inputStream,
 Map<String,String> attributes,
 long fileSize,
 ExecutorService executorService)
                                  throws IOException

Creates a FlowFileInputStream that packages the content in the provided InputStream with the supplied attributes using the supplied FlowFilePackager, starting a separate thread for writing.

Parameters:

flowFilePackager - the FlowFilePackager used to package the content and attributes

inputStream - the InputStream containing the content

attributes - the Map of attributes to include

fileSize - the size of the content

executorService - the ExecutorService used to submit the writing thread

Returns:

the FlowFileInputStream

Throws:

IOException - if an I/O error occurs

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class WriterPipedInputStream

Throws:

IOException