Package io.helidon.webserver

Class ContentReaders

java.lang.Object

io.helidon.webserver.ContentReaders

public final class ContentReaders
extends java.lang.Object

The ContentReaders.

Method Summary

Modifier and Type	Method and Description
static Reader<byte[]>	byteArrayReader() The returned reader provides means to convert a ByteBuffer publisher to an array of bytes.
static Reader<java.io.InputStream>	inputStreamReader() Creates a reader that bridges Flow API IO to a blocking Java InputStream.
static StringContentReader	stringReader(java.nio.charset.Charset charset) For basic charsets, returns a cached StringContentReader instance or create a new instance otherwise.

Methods inherited from class java.lang.Object

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

Method Detail

stringReader

public static StringContentReader stringReader(java.nio.charset.Charset charset)

For basic charsets, returns a cached StringContentReader instance or create a new instance otherwise.

Parameters:

charset - the charset to use with the returned string content reader

Returns:

a string content reader

byteArrayReader

public static Reader<byte[]> byteArrayReader()

The returned reader provides means to convert a ByteBuffer publisher to an array of bytes.

Returns a lazily initialized classloader-scoped singleton.

Note that the singleton aspect is not guarantied by all JVMs. Although, Oracle JVM does create a singleton because the lambda does not capture values.

Returns:

the byte array content reader singleton that transforms a publisher of byte buffers to a completion stage that might end exceptionally with IllegalArgumentException if it wasn't possible to convert the byte buffer to an array of bytes

inputStreamReader

public static Reader<java.io.InputStream> inputStreamReader()

Creates a reader that bridges Flow API IO to a blocking Java InputStream. The resulting CompletionStage is already completed; however, the referenced InputStream in it may not already have all the data available; in such case, the read method (e.g., InputStream.read()) block.

Returns:

a input stream content reader