Module datarush.commons
Package com.pervasive.datarush.commons.util

Class VariableExpander

java.lang.Object
com.pervasive.datarush.commons.util.VariableExpander
public final class VariableExpander extends Object
Variable expander that knows how to expand simple macro expressions of the form "${variableName}". Literal "$" can be escaped via the escape character "\". VariableExpanders are provided a map of macros to values. Values not in the map will not be expanded.

  • Constructor Details

    • VariableExpander

      public VariableExpander()
      Creates an empty variable expander.

    • VariableExpander

      public VariableExpander(Map<String,String> map)
      Creates a variable expander, initialized to the given map.
      Parameters:
      map - the map of variables

    • VariableExpander

      public VariableExpander(Properties variables)
      Creates a variable expander, initialized to the given properties object.
      Parameters:
      variables - the map of variables

  • Method Details

    • put

      public void put(String variable, String value)
      Adds a new variable
      Parameters:
      variable - the variable to add
      value - the value of the variable

    • expand

      public String expand(String str)
      Expands the macros in the given string.
      Parameters:
      str - the string
      Returns:
      the string with the macros expanded.