Package software.amazon.smithy.cli

Class Arguments

  • public final class Arguments
extends java.lang.Object
    Container for parsed command line arguments meant to be queried by Commands.

    Values parsed for command line arguments are canonicalized to the long-form of an argument if available. This means that an argument with a short name of "-h" and a long name of "--help" would be made available in an Arguments instance as "--help" and not "-h".

    • Constructor Summary

      Constructors 
      Constructor Description
      Arguments​(java.util.Map<java.lang.String,​java.util.List<java.lang.String>> arguments, java.util.List<java.lang.String> positionalArguments)  

    • Method Summary

      Modifier and Type Method Description
      boolean equals​(java.lang.Object o)  
      boolean has​(java.lang.String arg)
      Checks if a canonicalized argument name was provided.
      int hashCode()  
      java.lang.String parameter​(java.lang.String arg)
      Gets an argument by name or throws if not present.
      java.lang.String parameter​(java.lang.String arg, java.lang.String defaultValue)
      Gets an argument by name or return a default value if not found.
      java.util.List<java.lang.String> positionalArguments()
      Gets the list of positional arguments that came after named arguments.
      java.util.List<java.lang.String> repeatedParameter​(java.lang.String arg)
      Gets a repeated argument by name or throws if not present.
      java.util.List<java.lang.String> repeatedParameter​(java.lang.String arg, java.util.List<java.lang.String> defaultValues)
      Gets a repeated argument by name or returns a default list if not found.
      java.lang.String toString()  

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

    • Constructor Detail

      • Arguments

        public Arguments​(java.util.Map<java.lang.String,​java.util.List<java.lang.String>> arguments,
                 java.util.List<java.lang.String> positionalArguments)

    • Method Detail

      • has

        public boolean has​(java.lang.String arg)
        Checks if a canonicalized argument name was provided.

        This method should be used for checking if a option is set rather than calling parameter(java.lang.String) since that method throws when an argument cannot be found.

        Parameters:
        arg - Argument to check for (e.g., "--help").
        Returns:
        Returns true if the argument was set.

      • parameter

        public java.lang.String parameter​(java.lang.String arg)
        Gets an argument by name or throws if not present.

        Returns the first value if the argument is repeated.

        Parameters:
        arg - Argument to get (e.g., "-h", "--help").
        Returns:
        Returns the value of the matching argument.
        Throws:
        CliError - if the argument cannot be found or if the arg is a option.

      • parameter

        public java.lang.String parameter​(java.lang.String arg,
                                  java.lang.String defaultValue)
        Gets an argument by name or return a default value if not found.
        Parameters:
        arg - Argument to get (e.g., "-h", "--help").
        defaultValue - Default value to return if not found.
        Returns:
        Returns the value of the matching argument.

      • repeatedParameter

        public java.util.List<java.lang.String> repeatedParameter​(java.lang.String arg)
        Gets a repeated argument by name or throws if not present.
        Parameters:
        arg - Argument to retrieve (e.g., "--help").
        Returns:
        Returns a list of values for the argument.
        Throws:
        CliError - if the argument cannot be found or if the arg is a option.

      • repeatedParameter

        public java.util.List<java.lang.String> repeatedParameter​(java.lang.String arg,
                                                          java.util.List<java.lang.String> defaultValues)
        Gets a repeated argument by name or returns a default list if not found.
        Parameters:
        arg - Argument to retrieve (e.g., "--help").
        defaultValues - Default list of values to return if not found.
        Returns:
        Returns a list of values for the argument.

      • positionalArguments

        public java.util.List<java.lang.String> positionalArguments()
        Gets the list of positional arguments that came after named arguments.
        Returns:
        Returns the trailing positional arguments.

      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object

      • equals

        public boolean equals​(java.lang.Object o)
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object