Package com.uppaal.engine

Class Parser

java.lang.Object

com.uppaal.engine.LexicalAnalyser

com.uppaal.engine.Parser

public class Parser
extends LexicalAnalyser

Simple recursive decent parser for the communication protocol. Used by the EngineStub.

Field Summary

Fields inherited from class com.uppaal.engine.LexicalAnalyser

BLOCK, END, ERROR_EOL, FLOAT, INT, LONG, NEWLINE, NONE, PARTIAL_END, WORD

Constructor Summary

Constructors

Constructor	Description
Parser(InputStream in)	Constructor

Method Summary

Modifier and Type	Method	Description
String	getErrorContext(String errorLocation, int errorStartLine, int errorEndLine)	Get the location string from the declaration text where the error happened
void	parseAcknowledgement()	Parses the prolog and the end of the characters
BigDecimal	parseBigDecimal()	Parse the float of the next token
String	parseBlock()	Read the context of the block
ConcreteState	parseConcreteInitial(UppaalSystem system)	Parses the concrete initial state in the system
ConcreteState	parseConcreteState(UppaalSystem system)	Create the concrete state in the system: - Get the list of locations in the system - Get the list of variables of the system - Get the invariant value <l-len> <location>* <v-len> ( <value> <rate> )* <limit> <strict>
ConcreteSuccessor	parseConcreteSuccessor(UppaalSystem system)	To create the concrete successor: - parses the concrete state - get the list of the concrete transition
SystemEdge[]	parseEdges(UppaalSystem system)	Get the list of the system edges
SystemEdgeSelect[]	parseEdgesWS(UppaalSystem system)	Parses the selected edge of the system.
ArrayList<ConcreteTransition>	parseEnabledConcreteTransitions(UppaalSystem system)	Parses the limit of the concrete transition and collect the enabled concrete transition into the list
ArrayList<SymbolicTransition>	parseEnabledTransitions(UppaalSystem system)	Parses the transitions that are transit enabled
void	parseEnd()	Parses the end of the characters.
GanttChart	parseGanttChart(UppaalSystem system, BigDecimal globalTime)	Parses a Gantt chart.
void	parseGanttHeader(UppaalSystem system)	Parses the header of the ganttchard
String	parseId()	Parses and gets the string.
int	parseInteger()	Parses and get the integer value
Limit	parseLimit()	Parses the limit : limit consists of a value and information about whether the limit is strict or not.
long	parseLong()	Parses the response string in 'long'
LscProcess	parseLscProcess(Document document)	Parse LSC process
void	parsePartialEnd()	Parses the partial end of the characters
ArrayList<Problem>	parseProblems()	Parses problems in the system
void	parseProblems(ArrayList<Problem> problems)	Parses problems in the system
void	parseProlog()	Parses the prolog
char	parseQueryResult()	Parses query and get the query result
SymbolicState	parseSymbolicInitial(UppaalSystem system)	Parses the symbolic initial state in the system
SymbolicState	parseSymbolicState(UppaalSystem system)	Parses the symbolic state in the system
UppaalSystem	parseSystem(Document document)	Parses the uppaal system: - get the list of variables - get the list of clocks - add the processes into the system - add Gantt Chart parsing
SymbolicTrace	parseXTRTrace(UppaalSystem system)	Parses the Trace
Problem	problem()	Create the problem
boolean	skipProblems()	To skip problems

Methods inherited from class com.uppaal.engine.LexicalAnalyser

getException, getFloat, getIntValue, getLookahead, getValue, getWord, nextToken, read, readBlock

Methods inherited from class java.lang.Object

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

Constructor Detail

Parser

public Parser(InputStream in)

Constructor

Parameters:

in - - The input stream

Method Detail

parseProlog

public void parseProlog()
                 throws EngineException,
                        IOException

Parses the prolog

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

parseId

public String parseId()
               throws ProtocolException,
                      IOException

Parses and gets the string.

Returns:

The response string

Throws:

ProtocolException - broken engine communication protocol

IOException - engine crash or problem in communication.

parseInteger

public int parseInteger()
                 throws ProtocolException,
                        IOException,
                        ServerException

Parses and get the integer value

Returns:

The integer value of characters

Throws:

ProtocolException - broken engine communication protocol.

IOException - engine crash or problem in communication.

ServerException - engine returned an error

parseLong

public long parseLong()
               throws ProtocolException,
                      IOException,
                      ServerException

Parses the response string in 'long'

Returns:

The value in 'long' of the string

Throws:

ProtocolException - broken engine communication protocol.

IOException - engine crash or problem in communication.

ServerException - engine returned an error

parseBigDecimal

public BigDecimal parseBigDecimal()
                           throws ProtocolException,
                                  IOException

Parse the float of the next token

Returns:

The float value

Throws:

ProtocolException - broken engine communication protocol.

IOException - engine crash or problem in communication.

parseLimit

public Limit parseLimit()
                 throws ProtocolException,
                        IOException,
                        ServerException

Parses the limit : limit consists of a value and information about whether the limit is strict or not.

Returns:

The limit object

Throws:

ProtocolException - broken engine communication protocol.

IOException - engine crash or problem in communication.

ServerException - engine returned an error

parseEnd

public void parseEnd()
              throws ProtocolException,
                     IOException

Parses the end of the characters.

Throws:

ProtocolException - broken engine communication protocol.

IOException - engine crash or problem in communication.

parsePartialEnd

public void parsePartialEnd()
                     throws ProtocolException,
                            IOException

Parses the partial end of the characters

Throws:

ProtocolException - broken engine communication protocol.

IOException - engine crash or problem in communication.

parseSymbolicState

public SymbolicState parseSymbolicState(UppaalSystem system)
                                 throws ProtocolException,
                                        IOException,
                                        ServerException

Parses the symbolic state in the system

Parameters:

system - - The uppaal system

Returns:

The new symbolic state in the system

Throws:

ProtocolException - broken engine communication protocol.

IOException - engine crash or problem in communication.

ServerException - engine returned an error

parseEdges

public SystemEdge[] parseEdges(UppaalSystem system)
                        throws ProtocolException,
                               IOException,
                               ServerException

Get the list of the system edges

Parameters:

system - - The uppaal system

Returns:

l - The list of the edges

Throws:

ProtocolException - broken engine communication protocol.

IOException - engine crash or problem in communication.

ServerException - engine returned an error

parseEnabledTransitions

public ArrayList<SymbolicTransition> parseEnabledTransitions(UppaalSystem system)
                                                      throws EngineException,
                                                             IOException,
                                                             CannotEvaluateException

Parses the transitions that are transit enabled

Parameters:

system - - The uppaal system

Returns:

succs - The list of symbolic transitions

Throws:

ProtocolException - broken engine communication protocol.

IOException - engine crash or problem in communication.

EngineException - engine returned an error

CannotEvaluateException - an expression could not be evaluated

getErrorContext

public String getErrorContext(String errorLocation,
                              int errorStartLine,
                              int errorEndLine)

Get the location string from the declaration text where the error happened

Parameters:

errorLocation - - The all error location text

errorStartLine - - The start line number where the error string starts from

errorEndLine - - The end line number where the error string ends to

Returns:

location - The error location

parseAcknowledgement

public void parseAcknowledgement()
                          throws EngineException,
                                 IOException

Parses the prolog and the end of the characters

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

parseBlock

public String parseBlock()
                  throws EngineException,
                         IOException

Read the context of the block

Returns:

The string

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

parseGanttHeader

public void parseGanttHeader(UppaalSystem system)
                      throws ProtocolException,
                             EngineException,
                             IOException

Parses the header of the ganttchard

Parameters:

system - - The uppaal system

Throws:

ProtocolException - broken engine communication protocol.

IOException - engine crash or problem in communication.

EngineException - engine returned an error

parseSymbolicInitial

public SymbolicState parseSymbolicInitial(UppaalSystem system)
                                   throws EngineException,
                                          IOException,
                                          CannotEvaluateException

Parses the symbolic initial state in the system

Parameters:

system - - The uppaal system

Returns:

state - The symbolic state

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

CannotEvaluateException - in the Uppaal engine.

parseConcreteInitial

public ConcreteState parseConcreteInitial(UppaalSystem system)
                                   throws EngineException,
                                          IOException,
                                          ServerException,
                                          CannotEvaluateException

Parses the concrete initial state in the system

Parameters:

system - - The uppaal system

Returns:

state - The concrete state

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

ServerException - engine returned an error.

CannotEvaluateException - in the uppaal engine

parseSystem

public UppaalSystem parseSystem(Document document)
                         throws EngineException,
                                IOException

Parses the uppaal system: - get the list of variables - get the list of clocks - add the processes into the system - add Gantt Chart parsing

Parameters:

document - - The document

Returns:

system - The uppaal system

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

parseLscProcess

public LscProcess parseLscProcess(Document document)
                           throws EngineException,
                                  IOException

Parse LSC process

Parameters:

document - - The model document

Returns:

null

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

parseProblems

public ArrayList<Problem> parseProblems()
                                 throws EngineException,
                                        IOException

Parses problems in the system

Returns:

The list of the problems

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

parseProblems

public void parseProblems(ArrayList<Problem> problems)
                   throws EngineException,
                          IOException

Parses problems in the system

Parameters:

problems - - Problems of the system

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

skipProblems

public boolean skipProblems()
                     throws EngineException,
                            IOException

To skip problems

Returns:

True - Do it

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

problem

public Problem problem()
                throws EngineException,
                       IOException

Create the problem

Returns:

The new problem

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

parseQueryResult

public char parseQueryResult()
                      throws EngineException,
                             IOException

Parses query and get the query result

Returns:

The query ID

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

parseXTRTrace

public SymbolicTrace parseXTRTrace(UppaalSystem system)
                            throws ProtocolException,
                                   IOException

Parses the Trace

Parameters:

system - - The uppaal system

Returns:

trace - The list of the symbolic transition.

Throws:

IOException - engine crash or problem in communication.

ProtocolException - broken engine communication protocol.

parseConcreteState

public ConcreteState parseConcreteState(UppaalSystem system)
                                 throws IOException,
                                        ProtocolException,
                                        ServerException

Create the concrete state in the system: - Get the list of locations in the system - Get the list of variables of the system - Get the invariant value <l-len> <location>* <v-len> ( <value> <rate> )* <limit> <strict>

Parameters:

system - - The uppaal system

Returns:

The concrete state in the system

Throws:

IOException - engine crash or problem in communication.

ProtocolException - broken engine communication protocol.

ServerException - engine returned an error.

parseEdgesWS

public SystemEdgeSelect[] parseEdgesWS(UppaalSystem system)
                                throws ProtocolException,
                                       IOException,
                                       ServerException

Parses the selected edge of the system.

Parameters:

system - - The uppaal system

Returns:

listEdge - The list of the selected edges

Throws:

IOException - engine crash or problem in communication.

ProtocolException - broken engine communication protocol.

ServerException - engine returned an error.

parseEnabledConcreteTransitions

public ArrayList<ConcreteTransition> parseEnabledConcreteTransitions(UppaalSystem system)
                                                              throws EngineException,
                                                                     IOException,
                                                                     CannotEvaluateException

Parses the limit of the concrete transition and collect the enabled concrete transition into the list

Parameters:

system - - The uppaal system

Returns:

succs - The enabled transition

Throws:

IOException - I/O communication error.

EngineException - error in the server protocol.

CannotEvaluateException - some expression could not be evaluated.

parseConcreteSuccessor

public ConcreteSuccessor parseConcreteSuccessor(UppaalSystem system)
                                         throws IOException,
                                                EngineException,
                                                ServerException,
                                                CannotEvaluateException

To create the concrete successor: - parses the concrete state - get the list of the concrete transition

Parameters:

system - - The uppaal system

Returns:

The concrete successor

Throws:

IOException - engine crash or problem in communication.

EngineException - problem in the Uppaal engine.

ServerException - engine returned an error.

CannotEvaluateException - some expression could not be evaluated.

parseGanttChart

public GanttChart parseGanttChart(UppaalSystem system,
                                  BigDecimal globalTime)
                           throws ProtocolException,
                                  ServerException,
                                  IOException

Parses a Gantt chart. <num> (<identifier> <value> <value> <strict> <value> <strict>)* <num> a positive integer: Number of messages in the following <identifier> the row number/id <value> the value of the bar to be displayed. This number can be positive, 0 or negative. <value> a positive number: interval start time <strict> start of interval open or closed? <value> a positive number: interval stop time <strict> end of interval open or closed?

Parameters:

system - - The uppaal system

globalTime - - The global time

Returns:

The ganttChart

Throws:

IOException - engine crash or problem in communication.

ProtocolException - broken engine communication protocol.

ServerException - engine returned an error.