Package io.helidon.webserver

Class ContentWriters

java.lang.Object

io.helidon.webserver.ContentWriters

public final class ContentWriters
extends java.lang.Object

A utility class for various handy response content writers.

Some of these writers are by default registered on the response.

Method Summary

Modifier and Type	Method	Description
static java.util.function.Function<byte[],io.helidon.common.reactive.Flow.Publisher<ResponseChunk>>	byteArrayWriter(boolean copy)	Returns a writer function for byte[].
static java.util.function.Function<java.nio.channels.ReadableByteChannel,io.helidon.common.reactive.Flow.Publisher<ResponseChunk>>	byteChannelWriter()	Returns a writer function for ReadableByteChannel.
static java.util.function.Function<java.nio.channels.ReadableByteChannel,io.helidon.common.reactive.Flow.Publisher<ResponseChunk>>	byteChannelWriter(io.helidon.common.reactive.RetrySchema retrySchema)	Returns a writer function for ReadableByteChannel.
static java.util.function.Function<java.lang.CharSequence,io.helidon.common.reactive.Flow.Publisher<ResponseChunk>>	charSequenceWriter(java.nio.charset.Charset charset)	Returns a writer function for CharSequence using provided standard charset.

Methods inherited from class java.lang.Object

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

Method Detail

byteArrayWriter

public static java.util.function.Function<byte[],io.helidon.common.reactive.Flow.Publisher<ResponseChunk>> byteArrayWriter(boolean copy)

Returns a writer function for byte[].

The copy variant is by default registered in ServerResponse.

Parameters:

copy - a signal if byte array should be copied - set it true if byte[] will be immediately reused.

Returns:

a byte[] writer

charSequenceWriter

public static java.util.function.Function<java.lang.CharSequence,io.helidon.common.reactive.Flow.Publisher<ResponseChunk>> charSequenceWriter(java.nio.charset.Charset charset)

Returns a writer function for CharSequence using provided standard charset.

An instance is by default registered in ServerResponse for all standard charsets.

Parameters:

charset - a standard charset to use

Returns:

a String writer

Throws:

java.lang.NullPointerException - if parameter charset is null

byteChannelWriter

public static java.util.function.Function<java.nio.channels.ReadableByteChannel,io.helidon.common.reactive.Flow.Publisher<ResponseChunk>> byteChannelWriter(io.helidon.common.reactive.RetrySchema retrySchema)

Returns a writer function for ReadableByteChannel. Created publisher use provided RetrySchema to define delay between unsuccessful read attempts.

Parameters:

retrySchema - a retry schema to use in case when read operation reads 0 bytes

Returns:

a ReadableByteChannel writer

byteChannelWriter

public static java.util.function.Function<java.nio.channels.ReadableByteChannel,io.helidon.common.reactive.Flow.Publisher<ResponseChunk>> byteChannelWriter()

Returns a writer function for ReadableByteChannel.

Returns:

a ReadableByteChannel writer