Module org.refcodes.cli
Package org.refcodes.cli

Class XorCondition

java.lang.Object
org.refcodes.cli.AbstractCondition
org.refcodes.cli.XorCondition
All Implemented Interfaces:
ArgsSyntax, Condition, Synopsisable, Syntaxable, org.refcodes.mixin.Resetable, org.refcodes.mixin.Schemable<CliSchema>
Direct Known Subclasses:
CasesCondition
public class XorCondition extends AbstractCondition implements Condition
An XorCondition represents a list of ArgsSyntax (Syntaxable) instances of which only one is allowed to be parsed successfully when the Syntaxable.parseArgs(String[], String[]) methods are invoked. The command line arguments syntax { -a ^ -b ^ -c } specifies that only "-a", only "-b" or only "-c" must be set. In case more then one is set or none, then the XorCondition will terminate the parseArgs(String[], String[]) method with an exception.

  • Constructor Details

  • Method Details

    • parseArgs

      public List<? extends Operand<?>> parseArgs(String[] aArgs, String[] aOptions) throws ArgsSyntaxException
      Parses the provided command line arguments and determines the according values by evaluating this Syntaxable instance or, in case of being a node in the syntax tree (such as a ArgsSyntax, traversing the child Syntaxable instances' Syntaxable.parseArgs(String[], String[]) methods. In case of successfully parsing this Syntaxable and / or the child Syntaxable instances, the evaluated command line arguments are returned: Depending on the Syntaxable subclasses representing the evaluated command line arguments, instances of Flag classes, Option classes or Operand classes may be found in the result. In case of parsing failure, an according exception is thrown. ATTENTION: This method does not test for superfluous command line arguments being passed; e.g. command line arguments not being evaluated by any of the Syntaxable instance being traversed. This method is commonly used by a root Syntaxable's ArgsParser.evalArgs(String[]) method, which delegates to the Syntaxable.parseArgs(String[], String[]) method and after which it determines whether there are superfluous arguments to be taken care of (by throwing an according exception). Business logic therefore should invoke the root node's Syntaxable.parseArgs(String[], String[]) method as ignoring superfluous command line arguments will cause unexpected behavior from the point of view of the invoker.
      Specified by:
      parseArgs in interface Syntaxable
      Parameters:
      aArgs - The command line arguments to be parsed.
      aOptions - The list of options (short and as well as long) which are reserved and cannot be used as value.
      Returns:
      The list of evaluated command line arguments being instances of the Operand interfaces or its sub-types.
      Throws:
      ArgsSyntaxException - thrown in case of a command line arguments mismatch regarding provided and expected args.

    • toSyntax

      public String toSyntax(SyntaxNotation aSyntaxNotation, String aOptEscCode, String aParamEscCode, String aResetEscCode)
      This method is to be called from inside the Syntaxable hierarchy; use the method Synopsisable.toSynopsis(SyntaxNotation) in case you invoke syntax retrieval from the root Syntaxable. Returns the human readable (verbose) syntax of this Syntaxable instance including, in case of being a node in the syntax tree (such as a ArgsSyntax, the syntax of the child Syntaxable instances. ATTENTION: As of different parenthesis settings for some notations regarding the root Syntaxable and the child Syntaxables, the method Syntaxable.toSyntax(SyntaxNotation, String, String, String) is called from inside the Syntaxable hierarchy. In case the syntax is to be retrieved from the root Syntaxable, then the applicable method to be called is Synopsisable.toSynopsis(SyntaxNotation), as for some notations it will for example not create the most outer braces.
      Specified by:
      toSyntax in interface Syntaxable
      Overrides:
      toSyntax in class AbstractCondition
      Parameters:
      aSyntaxNotation - The syntax notation used for generating the command line arguments syntax.
      aOptEscCode - The escape code to be used when processing an option, e.g. this can be an ANSI Escape-Code to highlight the option.
      aParamEscCode - The escape code to be used when processing a keyword, e.g. this can be an ANSI Escape-Code to highlight the option and/or parameters.
      aResetEscCode - The escape code to close (reset) any Escape-Code being set before.
      Returns:
      The human readable (verbose) command line arguments syntax.

    • toSynopsis

      public String toSynopsis(SyntaxNotation aSyntaxNotation, String aOptEscCode, String aParamEscCode, String aResetEscCode)
      Returns the human readable (verbose) syntax of implementing class ATTENTION: As of different parenthesis settings for some notations regarding the root Syntaxable and the child Syntaxables, the method Syntaxable.toSyntax(SyntaxNotation, String, String, String) is called from inside a Syntaxable hierarchy. In case the syntax is to be retrieved from the root Syntaxable or an encapsulating and different type, then the applicable method to be called is Synopsisable.toSynopsis(SyntaxNotation), as for some notations it will for example not create the most outer braces.
      Specified by:
      toSynopsis in interface Synopsisable
      Parameters:
      aSyntaxNotation - The syntax notation used for generating the command line arguments syntax.
      aOptEscCode - The escape code to be used when processing an option, e.g. this can be an ANSI Escape-Code to highlight the option.
      aParamEscCode - The escape code to be used when processing am argument, e.g. this can be an ANSI Escape-Code to highlight the option.
      aResetEscCode - The escape code to close (reset) any Escape-Code being set before.
      Returns:
      The human readable (verbose) command line arguments syntax.

    • toState

      public String toState()
      The Syntaxable.toState() method might be used by the Object.toString() method and prints out the state of the syntaxable and (if any) its children. Even in case parsing command line arguments failed, the state till failure can be inspected with this method.
      Specified by:
      toState in interface Syntaxable
      Returns:
      The state of this Syntaxable instance and (if any) its children.