com.wowza.wms.amf
Class AMFData

Object
  com.wowza.wms.amf.AMFData

Direct Known Subclasses:

AMFDataArray, AMFDataByteArray, AMFDataItem, AMFDataList, AMFDataObj

public abstract class AMFData
extends Object

Base abstract class for data in Action Message Format (AMF). Data is sent between the Flash client and the Wowza Media Server using the AMF format. This class cannot be instantiated. It serves as the base class for all AMFData objects.

Field Summary

static byte	AMF_LEVEL0
static byte	AMF_LEVEL3
static byte	DATA_TYPE_AMF3
static byte	DATA_TYPE_AMF3_ARRAY
static byte	DATA_TYPE_AMF3_BOOLEAN_FALSE
static byte	DATA_TYPE_AMF3_BOOLEAN_TRUE
static byte	DATA_TYPE_AMF3_BYTEARRAY
static byte	DATA_TYPE_AMF3_DATE
static byte	DATA_TYPE_AMF3_INTEGER
static byte	DATA_TYPE_AMF3_NULL
static byte	DATA_TYPE_AMF3_NUMBER
static byte	DATA_TYPE_AMF3_OBJECT
static byte	DATA_TYPE_AMF3_STRING
static byte	DATA_TYPE_AMF3_UNDEFINED
static byte	DATA_TYPE_AMF3_XML_LEGACY
static byte	DATA_TYPE_AMF3_XML_TOP
static byte	DATA_TYPE_ARRAY
static byte	DATA_TYPE_AS_OBJECT
static byte	DATA_TYPE_BOOLEAN
static byte	DATA_TYPE_BYTEARRAY
static byte	DATA_TYPE_CUSTOM_CLASS
static byte	DATA_TYPE_DATE
static byte	DATA_TYPE_INTEGER
static byte	DATA_TYPE_LONG_STRING
static byte	DATA_TYPE_MIXED_ARRAY
static byte	DATA_TYPE_MOVIE_CLIP
static byte	DATA_TYPE_NULL
static byte	DATA_TYPE_NUMBER
static byte	DATA_TYPE_OBJECT
static byte	DATA_TYPE_OBJECT_END
static byte	DATA_TYPE_RECORDSET
static byte	DATA_TYPE_REFERENCE_OBJECT
static byte	DATA_TYPE_STRING
static byte	DATA_TYPE_UNDEFINED
static byte	DATA_TYPE_UNKNOWN
static byte	DATA_TYPE_XML
static byte	DATA_TYPE_XML_TOP
static int	MILLS_PER_HOUR Number of milliseconds in an hour
protected int	type

Constructor Summary

AMFData()

Method Summary

static AMFDataContextDeserialize	createContextDeserialize() Create an AMF3 deserialization context
static AMFDataContextDeserialize	createContextDeserialize(int objectEncoding) Create an AMF3 deserialization context
static AMFDataContextSerialize	createContextSerialize() Create an AMF3 serialization context
static AMFDataContextSerialize	createContextSerialize(int objectEncoding) Create an AMF3 serialization context
abstract void	deserialize(java.nio.ByteBuffer data) Deserialize data in byte buffer
abstract void	deserialize(java.nio.ByteBuffer data, AMFDataContextDeserialize context) Deserialize data in byte buffer
static AMFData	deserializeInnerObject(java.nio.ByteBuffer data, AMFDataContextDeserialize context) Deserialize next item
static AMFData	getReference(java.nio.ByteBuffer data, AMFDataContextDeserialize context) Get AMF3 object reference
int	getType() Returns the data type for this object
abstract Object	getValue() Convert object to Java native class
static boolean	isAMF3Start(java.nio.ByteBuffer data, AMFDataContextDeserialize context) Returns true if next byte in data is AMF3 start
static boolean	isArrayStart(java.nio.ByteBuffer data, AMFDataContextDeserialize context) Returns true if next byte in data is an array start
static boolean	isByteArrayStart(java.nio.ByteBuffer data, AMFDataContextDeserialize context) Returns true if next byte is ByteArray start
static boolean	isMixedArrayStart(java.nio.ByteBuffer data, AMFDataContextDeserialize context) Returns true if next byte in data is mixed array start
static boolean	isObjEnd(java.nio.ByteBuffer data, AMFDataContextDeserialize context) Returns true if next byte is object end
static boolean	isObjStart(java.nio.ByteBuffer data, AMFDataContextDeserialize context) Returns true if next byte in data is object start
static int	peekByte(java.nio.ByteBuffer data) Return the next byte in the buffer without incrementing the data position
abstract byte[]	serialize() Serial object to byte array
abstract byte[]	serialize(AMFDataContextSerialize context) Serial object to byte array
abstract void	serialize(java.io.DataOutputStream out) Serialize object to output stream
abstract void	serialize(java.io.DataOutputStream out, AMFDataContextSerialize context) Serialize object to output stream
abstract void	serialize(java.io.DataOutputStream out, int objectEncoding) Serialize object to output stream
abstract byte[]	serialize(int objectEncoding) Serial object to byte array
void	setType(int type) Sets the the data type for this object
static int	skipByte(java.nio.ByteBuffer data) Skip forward one byte in the byte buffer
static boolean	testNextByte(java.nio.ByteBuffer data, int test) Peek at the next value in data to see if its the test value
static boolean	triggerAMF3Switch(AMFData data) Return true if the object is serialized differently in AMF3

Methods inherited from class Object

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

Field Detail

AMF_LEVEL0

public static final byte AMF_LEVEL0

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Constant Field Values

AMF_LEVEL3

public static final byte AMF_LEVEL3

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Constant Field Values

DATA_TYPE_AMF3

public static final byte DATA_TYPE_AMF3

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DATA_TYPE_AMF3_ARRAY

public static final byte DATA_TYPE_AMF3_ARRAY

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DATA_TYPE_AMF3_BOOLEAN_FALSE

public static final byte DATA_TYPE_AMF3_BOOLEAN_FALSE

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DATA_TYPE_AMF3_BOOLEAN_TRUE

public static final byte DATA_TYPE_AMF3_BOOLEAN_TRUE

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DATA_TYPE_AMF3_BYTEARRAY

public static final byte DATA_TYPE_AMF3_BYTEARRAY

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DATA_TYPE_AMF3_DATE

public static final byte DATA_TYPE_AMF3_DATE

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DATA_TYPE_AMF3_INTEGER

public static final byte DATA_TYPE_AMF3_INTEGER

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DATA_TYPE_AMF3_NULL

public static final byte DATA_TYPE_AMF3_NULL

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DATA_TYPE_AMF3_NUMBER

public static final byte DATA_TYPE_AMF3_NUMBER

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DATA_TYPE_AMF3_OBJECT

public static final byte DATA_TYPE_AMF3_OBJECT

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DATA_TYPE_AMF3_STRING

public static final byte DATA_TYPE_AMF3_STRING

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DATA_TYPE_AMF3_UNDEFINED

public static final byte DATA_TYPE_AMF3_UNDEFINED

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DATA_TYPE_AMF3_XML_LEGACY

public static final byte DATA_TYPE_AMF3_XML_LEGACY

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DATA_TYPE_AMF3_XML_TOP

public static final byte DATA_TYPE_AMF3_XML_TOP

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DATA_TYPE_ARRAY

public static final byte DATA_TYPE_ARRAY

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DATA_TYPE_AS_OBJECT

public static final byte DATA_TYPE_AS_OBJECT

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DATA_TYPE_BOOLEAN

public static final byte DATA_TYPE_BOOLEAN

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DATA_TYPE_BYTEARRAY

public static final byte DATA_TYPE_BYTEARRAY

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DATA_TYPE_CUSTOM_CLASS

public static final byte DATA_TYPE_CUSTOM_CLASS

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DATA_TYPE_DATE

public static final byte DATA_TYPE_DATE

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DATA_TYPE_INTEGER

public static final byte DATA_TYPE_INTEGER

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DATA_TYPE_LONG_STRING

public static final byte DATA_TYPE_LONG_STRING

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DATA_TYPE_MIXED_ARRAY

public static final byte DATA_TYPE_MIXED_ARRAY

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DATA_TYPE_MOVIE_CLIP

public static final byte DATA_TYPE_MOVIE_CLIP

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DATA_TYPE_NULL

public static final byte DATA_TYPE_NULL

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DATA_TYPE_NUMBER

public static final byte DATA_TYPE_NUMBER

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DATA_TYPE_OBJECT

public static final byte DATA_TYPE_OBJECT

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DATA_TYPE_OBJECT_END

public static final byte DATA_TYPE_OBJECT_END

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DATA_TYPE_RECORDSET

public static final byte DATA_TYPE_RECORDSET

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DATA_TYPE_REFERENCE_OBJECT

public static final byte DATA_TYPE_REFERENCE_OBJECT

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DATA_TYPE_STRING

public static final byte DATA_TYPE_STRING

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DATA_TYPE_UNDEFINED

public static final byte DATA_TYPE_UNDEFINED

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DATA_TYPE_UNKNOWN

public static final byte DATA_TYPE_UNKNOWN

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DATA_TYPE_XML

public static final byte DATA_TYPE_XML

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DATA_TYPE_XML_TOP

public static final byte DATA_TYPE_XML_TOP

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MILLS_PER_HOUR

public static final int MILLS_PER_HOUR

Number of milliseconds in an hour

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Constant Field Values

type

protected int type

Constructor Detail

AMFData

public AMFData()

Method Detail

createContextDeserialize

public static AMFDataContextDeserialize createContextDeserialize()

Create an AMF3 deserialization context

Returns:

AMF3 deserialization context

createContextDeserialize

public static AMFDataContextDeserialize createContextDeserialize(int objectEncoding)

Create an AMF3 deserialization context

Parameters:

objectEncoding - object encoding level (see AMF_LEVEL*)

Returns:

AMF3 deserialization context

createContextSerialize

public static AMFDataContextSerialize createContextSerialize()

Create an AMF3 serialization context

Returns:

AMF3 serialization context

createContextSerialize

public static AMFDataContextSerialize createContextSerialize(int objectEncoding)

Create an AMF3 serialization context

Parameters:

objectEncoding - object encoding level (see AMF_LEVEL*)

Returns:

AMF3 serialization context

deserialize

public abstract void deserialize(java.nio.ByteBuffer data)

Deserialize data in byte buffer

Parameters:

data - binary data

deserialize

public abstract void deserialize(java.nio.ByteBuffer data,
                                 AMFDataContextDeserialize context)

Deserialize data in byte buffer

Parameters:

data - binary data

context - deserialization context used by AMF3

deserializeInnerObject

public static AMFData deserializeInnerObject(java.nio.ByteBuffer data,
                                             AMFDataContextDeserialize context)
                                      throws java.io.IOException

Deserialize next item

Parameters:

data - binary data being deserialized

context - deserialization context

Returns:

deserialized object

Throws:

java.io.IOException

getReference

public static AMFData getReference(java.nio.ByteBuffer data,
                                   AMFDataContextDeserialize context)

Get AMF3 object reference

Parameters:

data - binary data being deserialized

context - deserialization context

Returns:

null if not a reference else referenced object

getType

public int getType()

Returns the data type for this object

Returns:

object type DATA_TYPE_*

getValue

public abstract Object getValue()

Convert object to Java native class

Returns:

java native class

isAMF3Start

public static boolean isAMF3Start(java.nio.ByteBuffer data,
                                  AMFDataContextDeserialize context)

Returns true if next byte in data is AMF3 start

Parameters:

data - binary data being deserialized

context - deserialization context

Returns:

Returns true if next byte in data is object start

isArrayStart

public static boolean isArrayStart(java.nio.ByteBuffer data,
                                   AMFDataContextDeserialize context)

Returns true if next byte in data is an array start

Parameters:

data - binary data being deserialized

context - deserialization context

Returns:

Returns true if next byte in data is and array start

isByteArrayStart

public static boolean isByteArrayStart(java.nio.ByteBuffer data,
                                       AMFDataContextDeserialize context)

Returns true if next byte is ByteArray start

Parameters:

data - binary data being deserialized

context - deserialization context

Returns:

true if next byte in object end

isMixedArrayStart

public static boolean isMixedArrayStart(java.nio.ByteBuffer data,
                                        AMFDataContextDeserialize context)

Returns true if next byte in data is mixed array start

Parameters:

data - binary data being deserialized

context - deserialization context

Returns:

Returns true if next byte in data is mixed array start

isObjEnd

public static boolean isObjEnd(java.nio.ByteBuffer data,
                               AMFDataContextDeserialize context)

Returns true if next byte is object end

Parameters:

data - binary data being deserialized

context - deserialization context

Returns:

Returns true if next byte in object end

isObjStart

public static boolean isObjStart(java.nio.ByteBuffer data,
                                 AMFDataContextDeserialize context)

Returns true if next byte in data is object start

Parameters:

data - binary data being deserialized

context - deserialization context

Returns:

Returns true if next byte in data is object start

peekByte

public static int peekByte(java.nio.ByteBuffer data)

Return the next byte in the buffer without incrementing the data position

Parameters:

data - binary data being deserialized

Returns:

next byte in buffer

serialize

public abstract byte[] serialize()

Serial object to byte array

Returns:

serialized byte array

serialize

public abstract byte[] serialize(AMFDataContextSerialize context)

Serial object to byte array

Parameters:

context - serialization context used by AMF3

Returns:

serialized byte array

serialize

public abstract void serialize(java.io.DataOutputStream out)

Serialize object to output stream

Parameters:

out - Output stream

serialize

public abstract void serialize(java.io.DataOutputStream out,
                               AMFDataContextSerialize context)

Serialize object to output stream

Parameters:

out - Output stream

context - serialization context used by AMF3

serialize

public abstract void serialize(java.io.DataOutputStream out,
                               int objectEncoding)

Serialize object to output stream

Parameters:

out - Output stream

objectEncoding - object encoding level (see AMF_LEVEL*)

serialize

public abstract byte[] serialize(int objectEncoding)

Serial object to byte array

Parameters:

objectEncoding - object encoding level (see AMF_LEVEL*)

Returns:

serialized byte array

setType

public void setType(int type)

Sets the the data type for this object

Parameters:

type - type DATA_TYPE_*

skipByte

public static int skipByte(java.nio.ByteBuffer data)

Skip forward one byte in the byte buffer

Parameters:

data - binary data being deserialized

Returns:

next byte in buffer

testNextByte

public static boolean testNextByte(java.nio.ByteBuffer data,
                                   int test)

Peek at the next value in data to see if its the test value

Parameters:

data - binary data being deserialized

test - value being tested

Returns:

return true if the next byte in the buffer equals the test value

triggerAMF3Switch

public static boolean triggerAMF3Switch(AMFData data)

Return true if the object is serialized differently in AMF3

Parameters:

data - AMF object

Returns:

true if the object is serialized differently in AMF3