com.microsoft.rest.v2.util

Class FlowableUtil

java.lang.Object

com.microsoft.rest.v2.util.FlowableUtil

public final class FlowableUtil
extends Object

Contains helper methods for dealing with Flowables.

Method Summary

Modifier and Type	Method and Description
static io.reactivex.Single<byte[]>	collectBytesInArray(io.reactivex.Flowable<ByteBuffer> content) Collects byte buffers emitted by a Flowable into a byte array.
static io.reactivex.Single<ByteBuffer>	collectBytesInBuffer(io.reactivex.Flowable<ByteBuffer> content) Collects byte buffers emitted by a Flowable into a ByteBuffer.
static io.reactivex.FlowableTransformer<ByteBuffer,ByteBuffer>	ensureLength(long bytesExpected) Ensures the given Flowable emits the expected number of bytes.
static boolean	isFlowableByteBuffer(Type entityType) Checks if a type is Flowable<ByteBuffer>.
static io.reactivex.Flowable<ByteBuffer>	readFile(AsynchronousFileChannel fileChannel) Creates a Flowable from an AsynchronousFileChannel which reads the entire file.
static io.reactivex.Flowable<ByteBuffer>	readFile(AsynchronousFileChannel fileChannel, int chunkSize, long offset, long length) Creates a Flowable from an AsynchronousFileChannel which reads part of a file into chunks of the given size.
static io.reactivex.Flowable<ByteBuffer>	readFile(AsynchronousFileChannel fileChannel, long offset, long length) Creates a Flowable from an AsynchronousFileChannel which reads part of a file.
static io.reactivex.Flowable<ByteBuffer>	split(ByteBuffer whole, int chunkSize) Splits a large ByteBuffer into chunks.
static io.reactivex.Completable	writeFile(io.reactivex.Flowable<ByteBuffer> content, AsynchronousFileChannel outFile) Writes the bytes emitted by a Flowable to an AsynchronousFileChannel.
static io.reactivex.Completable	writeFile(io.reactivex.Flowable<ByteBuffer> content, AsynchronousFileChannel outFile, long position) Writes the bytes emitted by a Flowable to an AsynchronousFileChannel starting at the given position in the file.

Methods inherited from class java.lang.Object

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

Method Detail

isFlowableByteBuffer

public static boolean isFlowableByteBuffer(Type entityType)

Checks if a type is Flowable<ByteBuffer>.

Parameters:

entityType - the type to check

Returns:

whether the type represents a Flowable that emits byte arrays

collectBytesInArray

public static io.reactivex.Single<byte[]> collectBytesInArray(io.reactivex.Flowable<ByteBuffer> content)

Collects byte buffers emitted by a Flowable into a byte array.

Parameters:

content - A stream which emits byte buffers.

Returns:

A Single which emits the concatenation of all the byte buffers given by the source Flowable.

ensureLength

public static io.reactivex.FlowableTransformer<ByteBuffer,ByteBuffer> ensureLength(long bytesExpected)

Ensures the given Flowable emits the expected number of bytes.

Parameters:

bytesExpected - the number of bytes expected to be emitted

Returns:

a Function which can be applied using Flowable.compose(io.reactivex.FlowableTransformer<? super T, ? extends R>)

collectBytesInBuffer

public static io.reactivex.Single<ByteBuffer> collectBytesInBuffer(io.reactivex.Flowable<ByteBuffer> content)

Collects byte buffers emitted by a Flowable into a ByteBuffer.

Parameters:

content - A stream which emits byte arrays.

Returns:

A Single which emits the concatenation of all the byte buffers given by the source Flowable.

writeFile

public static io.reactivex.Completable writeFile(io.reactivex.Flowable<ByteBuffer> content,
                                                 AsynchronousFileChannel outFile)

Writes the bytes emitted by a Flowable to an AsynchronousFileChannel.

Parameters:

content - the Flowable content

outFile - the file channel

Returns:

a Completable which performs the write operation when subscribed

writeFile

public static io.reactivex.Completable writeFile(io.reactivex.Flowable<ByteBuffer> content,
                                                 AsynchronousFileChannel outFile,
                                                 long position)

Writes the bytes emitted by a Flowable to an AsynchronousFileChannel starting at the given position in the file.

Parameters:

content - the Flowable content

outFile - the file channel

position - the position in the file to begin writing

Returns:

a Completable which performs the write operation when subscribed

readFile

public static io.reactivex.Flowable<ByteBuffer> readFile(AsynchronousFileChannel fileChannel,
                                                         int chunkSize,
                                                         long offset,
                                                         long length)

Creates a Flowable from an AsynchronousFileChannel which reads part of a file into chunks of the given size.

Parameters:

fileChannel - The file channel.

chunkSize - the size of file chunks to read.

offset - The offset in the file to begin reading.

length - The number of bytes to read from the file.

Returns:

the Flowable.

readFile

public static io.reactivex.Flowable<ByteBuffer> readFile(AsynchronousFileChannel fileChannel,
                                                         long offset,
                                                         long length)

Creates a Flowable from an AsynchronousFileChannel which reads part of a file.

Parameters:

fileChannel - The file channel.

offset - The offset in the file to begin reading.

length - The number of bytes to read from the file.

Returns:

the Flowable.

readFile

public static io.reactivex.Flowable<ByteBuffer> readFile(AsynchronousFileChannel fileChannel)

Creates a Flowable from an AsynchronousFileChannel which reads the entire file.

Parameters:

fileChannel - The file channel.

Returns:

The AsyncInputStream.

split

public static io.reactivex.Flowable<ByteBuffer> split(ByteBuffer whole,
                                                      int chunkSize)

Splits a large ByteBuffer into chunks.

Parameters:

whole - the ByteBuffer to split

chunkSize - the maximum size of each emitted ByteBuffer

Returns:

A stream that emits chunks of the original whole ByteBuffer