edu.umd.cs.findbugs.config

Class CommandLine

java.lang.Object

edu.umd.cs.findbugs.config.CommandLine

Direct Known Subclasses:

FindBugsCommandLine

public abstract class CommandLine
extends Object

Helper class for parsing command line arguments.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CommandLine.HelpRequestedException

Constructor Summary

Constructors

Constructor and Description
CommandLine()

Method Summary

Methods

Modifier and Type	Method and Description
void	addOption(String option, String argumentDesc, String description) Add an option requiring an argument.
void	addSwitch(String option, String description) Add a command line switch.
void	addSwitchWithOptionalExtraPart(String option, String optionExtraPartSynopsis, String description) Add a command line switch that allows optional extra information to be specified as part of it.
String[]	expandOptionFiles(String[] argv, boolean ignoreComments, boolean ignoreBlankLines) Expand option files in given command line.
static ArrayList<String>	getAnalysisOptionProperties(boolean ignoreComments, boolean ignoreBlankLines)
protected abstract void	handleOption(String option, String optionExtraPart) Callback method for handling an option.
protected abstract void	handleOptionWithArgument(String option, String argument) Callback method for handling an option with an argument.
void	makeOptionUnlisted(String option) Don't list this option when printing Usage information
int	parse(String[] argv) Parse a command line.
int	parse(String[] argv, int minArgs, int maxArgs, String usage) Parse switches/options, showing usage information if they can't be parsed, or if we have the wrong number of remaining arguments after parsing.
void	printUsage(OutputStream os) Print command line usage information to given stream.
void	startOptionGroup(String description) Start a new group of related command-line options.

Methods inherited from class java.lang.Object

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

Constructor Detail

CommandLine

public CommandLine()

Method Detail

startOptionGroup

public void startOptionGroup(String description)

Start a new group of related command-line options.

Parameters:

description - description of the group

addSwitch

public void addSwitch(String option,
             String description)

Add a command line switch. This method is for adding options that do not require an argument.

Parameters:

option - the option, must start with "-"

description - single line description of the option

addSwitchWithOptionalExtraPart

public void addSwitchWithOptionalExtraPart(String option,
                                  String optionExtraPartSynopsis,
                                  String description)

Add a command line switch that allows optional extra information to be specified as part of it.

Parameters:

option - the option, must start with "-"

optionExtraPartSynopsis - synopsis of the optional extra information

description - single-line description of the option

addOption

public void addOption(String option,
             String argumentDesc,
             String description)

Add an option requiring an argument.

Parameters:

option - the option, must start with "-"

argumentDesc - brief (one or two word) description of the argument

description - single line description of the option

makeOptionUnlisted

public void makeOptionUnlisted(String option)

Don't list this option when printing Usage information

Parameters:

option -

expandOptionFiles

public String[] expandOptionFiles(String[] argv,
                         boolean ignoreComments,
                         boolean ignoreBlankLines)
                           throws IOException,
                                  CommandLine.HelpRequestedException

Expand option files in given command line. Any token beginning with "@" is assumed to be an option file. Option files contain one command line option per line.

Parameters:

argv - the original command line

ignoreComments - ignore comments (lines starting with "#")

ignoreBlankLines - ignore blank lines

Returns:

the expanded command line

Throws:

IOException

CommandLine.HelpRequestedException

getAnalysisOptionProperties

public static ArrayList<String> getAnalysisOptionProperties(boolean ignoreComments,
                                            boolean ignoreBlankLines)

parse

public int parse(String[] argv,
        int minArgs,
        int maxArgs,
        String usage)

Parse switches/options, showing usage information if they can't be parsed, or if we have the wrong number of remaining arguments after parsing. Calls parse(String[]).

Parameters:

argv - command line arguments

minArgs - allowed minimum number of arguments remaining after switches/options are parsed

maxArgs - allowed maximum number of arguments remaining after switches/options are parsed

usage - usage synopsis

Returns:

number of arguments parsed

parse

public int parse(String[] argv)
          throws IOException,
                 CommandLine.HelpRequestedException

Parse a command line. Calls down to handleOption() and handleOptionWithArgument() methods. Stops parsing when it reaches the end of the command line, or when a command line argument not starting with "-" is seen.

Parameters:

argv - the arguments

Returns:

the number of arguments parsed; if equal to argv.length, then the entire command line was parsed

Throws:

CommandLine.HelpRequestedException

IOException

handleOption

protected abstract void handleOption(String option,
                String optionExtraPart)
                              throws IOException

Callback method for handling an option.

Parameters:

option - the option

optionExtraPart - the "extra" part of the option (everything after the colon: e.g., "withMessages" in "-xml:withMessages"); the empty string if there was no extra part

Throws:

IOException

handleOptionWithArgument

protected abstract void handleOptionWithArgument(String option,
                            String argument)
                                          throws IOException

Callback method for handling an option with an argument.

Parameters:

option - the option

argument - the argument

Throws:

IOException

printUsage

public void printUsage(OutputStream os)

Print command line usage information to given stream.

Parameters:

os - the output stream