Package io.protostuff

Class IOUtil

java.lang.Object

io.protostuff.IOUtil

final class IOUtil
extends java.lang.Object

Common io utils for the supported formats.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	IOUtil()

Method Summary

Modifier and Type	Method	Description
(package private) static void	fillBufferFrom(java.io.InputStream in, byte[] buf, int offset, int len)	Fills the byte buffer from the InputStream with the specified length.
(package private) static int	fillBufferWithDelimitedMessageFrom(java.io.InputStream in, boolean drainRemainingBytesIfTooLarge, LinkedBuffer lb)	Fills the buffer based from the varint32 read from the input stream.
(package private) static <T> int	mergeDelimitedFrom(java.io.DataInput in, T message, Schema<T> schema, boolean decodeNestedMessageAsGroup)	Used by the code generated messages that implement Externalizable.
(package private) static <T> int	mergeDelimitedFrom(java.io.InputStream in, byte[] buf, T message, Schema<T> schema, boolean decodeNestedMessageAsGroup)	The buf size limits the size of the message that must be read.
(package private) static <T> int	mergeDelimitedFrom(java.io.InputStream in, T message, Schema<T> schema, boolean decodeNestedMessageAsGroup)	Merges the message (delimited) from the InputStream using the given schema.
(package private) static <T> void	mergeFrom(byte[] data, int offset, int length, T message, Schema<T> schema, boolean decodeNestedMessageAsGroup)	Merges the message with the byte array using the given schema.
(package private) static <T> void	mergeFrom(java.io.InputStream in, byte[] buf, T message, Schema<T> schema, boolean decodeNestedMessageAsGroup)	Merges the message from the InputStream with the supplied buf to use.
(package private) static <T> void	mergeFrom(java.io.InputStream in, T message, Schema<T> schema, boolean decodeNestedMessageAsGroup)	Merges the message from the InputStream using the given schema.
(package private) static int	putVarInt32AndGetOffset(int value, byte[] buffer, int variableOffset)	Returns the offset where the first byte is written.

Methods inherited from class java.lang.Object

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

Constructor Detail

IOUtil

private IOUtil()

Method Detail

mergeFrom

static <T> void mergeFrom(byte[] data,
                          int offset,
                          int length,
                          T message,
                          Schema<T> schema,
                          boolean decodeNestedMessageAsGroup)

Merges the message with the byte array using the given schema.

mergeFrom

static <T> void mergeFrom(java.io.InputStream in,
                          byte[] buf,
                          T message,
                          Schema<T> schema,
                          boolean decodeNestedMessageAsGroup)
                   throws java.io.IOException

Merges the message from the InputStream with the supplied buf to use.

Throws:

java.io.IOException

mergeFrom

static <T> void mergeFrom(java.io.InputStream in,
                          T message,
                          Schema<T> schema,
                          boolean decodeNestedMessageAsGroup)
                   throws java.io.IOException

Merges the message from the InputStream using the given schema.

Throws:

java.io.IOException

mergeDelimitedFrom

static <T> int mergeDelimitedFrom(java.io.InputStream in,
                                  byte[] buf,
                                  T message,
                                  Schema<T> schema,
                                  boolean decodeNestedMessageAsGroup)
                           throws java.io.IOException

The buf size limits the size of the message that must be read. A ProtobufException (sizeLimitExceeded) will be thrown if the size of the delimited message is larger.

Throws:

java.io.IOException

mergeDelimitedFrom

static <T> int mergeDelimitedFrom(java.io.InputStream in,
                                  T message,
                                  Schema<T> schema,
                                  boolean decodeNestedMessageAsGroup)
                           throws java.io.IOException

Merges the message (delimited) from the InputStream using the given schema.

Throws:

java.io.IOException

mergeDelimitedFrom

static <T> int mergeDelimitedFrom(java.io.DataInput in,
                                  T message,
                                  Schema<T> schema,
                                  boolean decodeNestedMessageAsGroup)
                           throws java.io.IOException

Used by the code generated messages that implement Externalizable. Merges from the DataInput.

Throws:

java.io.IOException

fillBufferFrom

static void fillBufferFrom(java.io.InputStream in,
                           byte[] buf,
                           int offset,
                           int len)
                    throws java.io.IOException

Fills the byte buffer from the InputStream with the specified length.

Throws:

java.io.IOException

fillBufferWithDelimitedMessageFrom

static int fillBufferWithDelimitedMessageFrom(java.io.InputStream in,
                                              boolean drainRemainingBytesIfTooLarge,
                                              LinkedBuffer lb)
                                       throws java.io.IOException

Fills the buffer based from the varint32 read from the input stream.

The buffer's read offset is not set if the data (varint32 size + message size) is too large to fit in the buffer.

Returns:

the delimited size read.

Throws:

java.io.IOException

putVarInt32AndGetOffset

static int putVarInt32AndGetOffset(int value,
                                   byte[] buffer,
                                   int variableOffset)

Returns the offset where the first byte is written. This method assumes that 5 bytes will be writable starting at the variableOffset.