Package com.pervasive.datarush.operators.io.textfile

Provides operators for reading and writing text data.

See: Description

Interface Summary

Interface	Description
FieldDelimiterSpecifier	A collection of structural information about a text file consisting of delimited-field records.
LogFormat
RecordSeparatorSpecifier	A collection of structural information about a text file consisting of records.

Class Summary

Class	Description
AbstractRegexLogFormat	Skeleton implementation of a regular expression based LogFormat class.
AbstractTextReader	A generic reader of text data representing a stream of records.
AbstractTextWriter	A generic writer of text data representing a stream of records.
ARFFAnalyzer	An analyzer for ARFF files.
ARFFAnalyzer.Analysis	Contains the results of analyzing an ARFF file.
ARFFDataFormat	Describes an instance of ARFF data.
CLFLogFormat	Describes the format of a web server log in NCSA Common log format.
CombinedLogFormat	Describes the format of a web server log in NCSA Combined log format.
DelimitedTextAnalyzer	An analyzer for files containing delimited text.
DelimitedTextAnalyzer.Analysis	Contains the results of an analysis of a delimited text file.
DelimitedTextFormat	Describes the format of a delimited text file.
ELFAnalyzer	A format analyzer for Extended Log Format files.
ELFAnalyzer.ELFAnalysis
ELFLogFormat	Describes the format of a web server log in W3C Extended log format.
FieldDelimiterSettings	A container for structural information about a text file containing delimited records.
FixedTextFormat	Describes the format of a fixed text file.
FormatAnalyzer	A generic format analyzer for log files.
FormatAnalyzer.FormatAnalysis	Contains the results of analyzing a file.
GenericLogFormat	Describes the format of a generic log that can be parsed using a regular expression.
GlassfishLogFormat	Describes the format of a Glassfish log file.
Log4jLogFormat	Describes the format of a log4j log file.
Log4jPatternParser
LogDataFormat
ParseTextFields	Parses input text records according to a specified text schema.
ReadARFF	Read files in the Attribute-Relation File Format (ARFF).
ReadDelimitedText	Reads a text file of delimited records as record tokens.
ReadFixedText	Reads a text file of fixed-width records as record tokens.
ReadLog	Reads a log file as record tokens.
RecordSeparatorSettings	A container for structural information about a file containing text records.
SyslogLogFormat	Describes the format of a syslog log file.
WriteARFF	Write files using the Attribute-Relation File Format (ARFF).
WriteDelimitedText	Writes a stream of records as delimited text.
WriteFixedText	Writes a record dataflow as a text file of fixed-width records.

Enum Summary

Enum	Description
ARFFMode	Defines valid representation types for ARFF instance data.
RecordLengthErrorAction	The actions supported when a record length error occurs.
SupportedLogType	Enumerated type that provides factory constructors for the supported log formats.

Exception Summary

Exception	Description
InvalidSchemaException	Exception that indicates a schema definition is invalid.
ParseException	Exception indicating a parsing error.
RowTooLongException	Exception thrown when the number of characters in the first row of a delimited text file exceeds the maximum allowed.

Package com.pervasive.datarush.operators.io.textfile Description

Provides operators for reading and writing text data. A number of text formats are supported, including:

• Delimited text, where fields a separated by some known character, such as is used with .csv and .tsv files.
• Fixed text, where fields are located at fixed offsets in every record.
• ARFF, Attribute-Relation File Format, a format commonly used in data analytics.