org.springframework.cloud.dataflow.core.dsl

Class CheckPointedParseException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

org.springframework.cloud.dataflow.core.dsl.ParseException

org.springframework.cloud.dataflow.core.dsl.CheckPointedParseException

All Implemented Interfaces:

Serializable

public class CheckPointedParseException
extends ParseException

An extension of ParseException that keeps track of the last position up to which parsing was successful. Backtracking to that position and attempting a parse again is guaranteed to be successful.

Author:

Eric Bottard

See Also:

Serialized Form

Field Summary

Fields inherited from class org.springframework.cloud.dataflow.core.dsl.ParseException

expressionString, inserts, message, position

Constructor Summary

Constructors

Constructor and Description
CheckPointedParseException(String expressionString, int textPosition, int tokenPointer, int checkpointPointer, List<Token> tokens, DSLMessage message, Object... inserts) Construct a new CheckPointedParseException.

Method Summary

Methods

Modifier and Type	Method and Description
int	getCheckpointPointer()
int	getCheckpointPosition()
String	getExpressionStringUntilCheckpoint() Return the parsed expression until the last known, well formed position.
String	getMessage()
int	getTokenPointer()
List<Token>	getTokens()

Methods inherited from class org.springframework.cloud.dataflow.core.dsl.ParseException

getExpressionString, getInserts, getMessageCode, getPosition

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

CheckPointedParseException

public CheckPointedParseException(String expressionString,
                          int textPosition,
                          int tokenPointer,
                          int checkpointPointer,
                          List<Token> tokens,
                          DSLMessage message,
                          Object... inserts)

Construct a new CheckPointedParseException.

Parameters:

expressionString - the raw, untokenized text that was being parsed

textPosition - the text offset where the error occurs

tokenPointer - the token-index of token where the error occurred

checkpointPointer - the token-index of the last known good token

tokens - the list of tokens that make up expressionString

message - the error message

inserts - variables that may be inserted in the error message

Method Detail

getMessage

public String getMessage()

Overrides:

getMessage in class ParseException

Returns:

a formatted message with inserts applied.

getCheckpointPosition

public int getCheckpointPosition()

getExpressionStringUntilCheckpoint

public String getExpressionStringUntilCheckpoint()

Return the parsed expression until the last known, well formed position. Attempting to re-parse that expression is guaranteed to not fail.

getCheckpointPointer

public int getCheckpointPointer()

getTokens

public List<Token> getTokens()

getTokenPointer

public int getTokenPointer()