org.jivesoftware.smack.util
Class PacketParserUtils

java.lang.Object
  org.jivesoftware.smack.util.PacketParserUtils

public class PacketParserUtils
extends Object

Utility class that helps to parse packets. Any parsing packets method that must be shared between many clients must be placed in this utility class.

Author:

Gaston Dombiak

Constructor Summary

PacketParserUtils()

Method Summary

static Collection<String>	parseCompressionMethods(org.xmlpull.v1.XmlPullParser parser) Parse the available compression methods reported from the server.
static XMPPError	parseError(org.xmlpull.v1.XmlPullParser parser) Parses error sub-packets.
static IQ	parseIQ(org.xmlpull.v1.XmlPullParser parser, Connection connection) Parses an IQ packet.
static Collection<String>	parseMechanisms(org.xmlpull.v1.XmlPullParser parser) Parse the available SASL mechanisms reported from the server.
static Packet	parseMessage(org.xmlpull.v1.XmlPullParser parser) Parses a message packet.
static PacketExtension	parsePacketExtension(String elementName, String namespace, org.xmlpull.v1.XmlPullParser parser) Parses a packet extension sub-packet.
static Presence	parsePresence(org.xmlpull.v1.XmlPullParser parser) Parses a presence packet.
static Map<String,Object>	parseProperties(org.xmlpull.v1.XmlPullParser parser) Parse a properties sub-packet.
static SASLMechanism.Failure	parseSASLFailure(org.xmlpull.v1.XmlPullParser parser) Parses SASL authentication error packets.
static StreamError	parseStreamError(org.xmlpull.v1.XmlPullParser parser) Parses stream error packets.
static Object	parseWithIntrospection(String elementName, Class objectClass, org.xmlpull.v1.XmlPullParser parser)

Methods inherited from class java.lang.Object

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

Constructor Detail

PacketParserUtils

public PacketParserUtils()

Method Detail

parseMessage

public static Packet parseMessage(org.xmlpull.v1.XmlPullParser parser)
                           throws Exception

Parses a message packet.

Parameters:

parser - the XML parser, positioned at the start of a message packet.

Returns:

a Message packet.

Throws:

Exception - if an exception occurs while parsing the packet.

parsePresence

public static Presence parsePresence(org.xmlpull.v1.XmlPullParser parser)
                              throws Exception

Parses a presence packet.

Parameters:

parser - the XML parser, positioned at the start of a presence packet.

Returns:

a Presence packet.

Throws:

Exception - if an exception occurs while parsing the packet.

parseIQ

public static IQ parseIQ(org.xmlpull.v1.XmlPullParser parser,
                         Connection connection)
                  throws Exception

Parses an IQ packet.

Parameters:

parser - the XML parser, positioned at the start of an IQ packet.

Returns:

an IQ object.

Throws:

Exception - if an exception occurs while parsing the packet.

parseMechanisms

public static Collection<String> parseMechanisms(org.xmlpull.v1.XmlPullParser parser)
                                          throws Exception

Parse the available SASL mechanisms reported from the server.

Parameters:

parser - the XML parser, positioned at the start of the mechanisms stanza.

Returns:

a collection of Stings with the mechanisms included in the mechanisms stanza.

Throws:

Exception - if an exception occurs while parsing the stanza.

parseCompressionMethods

public static Collection<String> parseCompressionMethods(org.xmlpull.v1.XmlPullParser parser)
                                                  throws IOException,
                                                         org.xmlpull.v1.XmlPullParserException

Parse the available compression methods reported from the server.

Parameters:

parser - the XML parser, positioned at the start of the compression stanza.

Returns:

a collection of Stings with the methods included in the compression stanza.

Throws:

Exception - if an exception occurs while parsing the stanza.

IOException

org.xmlpull.v1.XmlPullParserException

parseProperties

public static Map<String,Object> parseProperties(org.xmlpull.v1.XmlPullParser parser)
                                          throws Exception

Parse a properties sub-packet. If any errors occur while de-serializing Java object properties, an exception will be printed and not thrown since a thrown exception will shut down the entire connection. ClassCastExceptions will occur when both the sender and receiver of the packet don't have identical versions of the same class.

Parameters:

parser - the XML parser, positioned at the start of a properties sub-packet.

Returns:

a map of the properties.

Throws:

Exception - if an error occurs while parsing the properties.

parseSASLFailure

public static SASLMechanism.Failure parseSASLFailure(org.xmlpull.v1.XmlPullParser parser)
                                              throws Exception

Parses SASL authentication error packets.

Parameters:

parser - the XML parser.

Returns:

a SASL Failure packet.

Throws:

Exception - if an exception occurs while parsing the packet.

parseStreamError

public static StreamError parseStreamError(org.xmlpull.v1.XmlPullParser parser)
                                    throws IOException,
                                           org.xmlpull.v1.XmlPullParserException

Parses stream error packets.

Parameters:

parser - the XML parser.

Returns:

an stream error packet.

Throws:

Exception - if an exception occurs while parsing the packet.

IOException

org.xmlpull.v1.XmlPullParserException

parseError

public static XMPPError parseError(org.xmlpull.v1.XmlPullParser parser)
                            throws Exception

Parses error sub-packets.

Parameters:

parser - the XML parser.

Returns:

an error sub-packet.

Throws:

Exception - if an exception occurs while parsing the packet.

parsePacketExtension

public static PacketExtension parsePacketExtension(String elementName,
                                                   String namespace,
                                                   org.xmlpull.v1.XmlPullParser parser)
                                            throws Exception

Parses a packet extension sub-packet.

Parameters:

elementName - the XML element name of the packet extension.

namespace - the XML namespace of the packet extension.

parser - the XML parser, positioned at the starting element of the extension.

Returns:

a PacketExtension.

Throws:

Exception - if a parsing error occurs.

parseWithIntrospection

public static Object parseWithIntrospection(String elementName,
                                            Class objectClass,
                                            org.xmlpull.v1.XmlPullParser parser)
                                     throws Exception

Throws:

Exception