dk.dma.ais.sentence

Class Vdm

java.lang.Object

dk.dma.ais.sentence.Sentence

dk.dma.ais.sentence.EncapsulatedSentence

dk.dma.ais.sentence.Vdm

public class Vdm
extends EncapsulatedSentence

Class to represent VDM and VDO sentences as defined by IEC 61162

Field Summary

Fields inherited from class dk.dma.ais.sentence.EncapsulatedSentence

binArray, channel, completePacket, msgId, num, padBits, sequence, sixbitString, total

Fields inherited from class dk.dma.ais.sentence.Sentence

checksum, commentBlock, delimiter, encodedFields, formatter, msgChecksum, mssisTimestamp, orgLines, rawSentences, sentenceStr, tags, talker

Constructor Summary

Constructors

Constructor and Description
Vdm()

Method Summary

Modifier and Type	Method and Description
Vdm[]	createSentences() Split single VDM into possible multiple VDM's to adherne to the 80 character max
static String[]	createSentences(AisMessage aisMessage, int sequence) Make max 80 chars length sentences from AIS message given sequence number If all VDM fields are used, 61 chars are left for encoded AIS message
String	getEncoded() Get encoded sentence as a single line
boolean	isOwnMessage() Determine if VDO instead of VDM
static boolean	isVdm(String line) Determine if line seems to contain VDM or VDO sentence
int	parse(SentenceLine sl) Implemented parse method.
int	parse(String line) Helper method parsing line to SentenceLine and passing to parse

Methods inherited from class dk.dma.ais.sentence.EncapsulatedSentence

baseParse, encode, getBinArray, getChannel, getMsgId, getNum, getPadBits, getSequence, getSixbitString, getTotal, isCompletePacket, setBinArray, setChannel, setEncodedMessage, setMessageData, setMsgId, setNum, setPadBits, setSequence, setSixbitString, setTotal

Methods inherited from class dk.dma.ais.sentence.Sentence

addSingleCommentBlock, convert, finalEncode, findMssisTimestamp, getChecksum, getCommentBlock, getMssisTimestamp, getOrgLines, getOrgLinesJoined, getRawSentences, getRawSentencesJoined, getSourceTag, getStringChecksum, getTags, getTimestamp, hasSentence, parseInt, setDelimiter, setFormatter, setTag, setTags, setTalker

Methods inherited from class java.lang.Object

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

Constructor Detail

Vdm

public Vdm()

Method Detail

parse

public int parse(String line)
          throws SentenceException

Helper method parsing line to SentenceLine and passing to parse

Parameters:

line - the line

Returns:

int

Throws:

SentenceException - the sentence exception

parse

public int parse(SentenceLine sl)
          throws SentenceException

Implemented parse method. See EncapsulatedSentence

Specified by:

parse in class Sentence

Parameters:

sl - the sl

Returns:

0 Complete packet - 1 Incomplete packet

Throws:

SentenceException - the sentence exception

isVdm

public static boolean isVdm(String line)

Determine if line seems to contain VDM or VDO sentence

Parameters:

line - the line

Returns:

boolean

isOwnMessage

public boolean isOwnMessage()

Determine if VDO instead of VDM

Returns:

boolean

getEncoded

public String getEncoded()

Get encoded sentence as a single line

Specified by:

getEncoded in class Sentence

Returns:

encoded

createSentences

public static String[] createSentences(AisMessage aisMessage,
                                       int sequence)
                                throws SixbitException

Make max 80 chars length sentences from AIS message given sequence number

If all VDM fields are used, 61 chars are left for encoded AIS message

Parameters:

aisMessage - the ais message

sequence - the sequence

Returns:

array of sentence parts

Throws:

SixbitException - the sixbit exception

createSentences

public Vdm[] createSentences()

Split single VDM into possible multiple VDM's to adherne to the 80 character max

Returns:

vdm [ ]