Package org.apache.groovy.util

Class SystemUtil

java.lang.Object
org.apache.groovy.util.SystemUtil
public class SystemUtil extends Object

  • Constructor Details

    • SystemUtil

      public SystemUtil()

  • Method Details

    • setSystemPropertyFrom

      public static String setSystemPropertyFrom(String nameValue)
      Sets a system property from a name=value String. If no '=' is found, the property is assumed to be a Boolean flag with value true.
      Parameters:
      nameValue - the non-null name=value String
      Returns:
      the found name
      Throws:
      IllegalArgumentException - if nameValue is null

    • setSystemPropertyFromSafe

      public static String setSystemPropertyFromSafe(String nameValue)
      Sets a system property from a name=value String. If no '=' is found, the property is assumed to be a Boolean flag with value true.
      Parameters:
      nameValue - the non-null name=value String
      Returns:
      the found property name or null if the operation wasn't successful
      Throws:
      IllegalArgumentException - if nameValue is null

    • getSystemPropertySafe

      public static String getSystemPropertySafe(String name, String defaultValue)
      Retrieves a System property, or returns some default value if:
      • the property isn't found
      • the property name is null or empty
      Parameters:
      name - the name of the system property.
      defaultValue - a default value.
      Returns:
      value of the system property or the default value

    • getSystemPropertySafe

      public static String getSystemPropertySafe(String name)
      Retrieves a System property, or null if:
      • the property isn't found
      • the property name is null or empty
      Parameters:
      name - the name of the system property.
      Returns:
      value of the system property or null

    • getBooleanSafe

      public static boolean getBooleanSafe(String name)
      Retrieves a Boolean System property, or returns false if:
      • the property isn't found
      • the property name is null or empty
      Parameters:
      name - the name of the system property.
      Returns:
      value of the Boolean system property or false

    • getIntegerSafe

      public static Integer getIntegerSafe(String name, Integer def)
      Retrieves an Integer System property
      Parameters:
      name - the name of the system property.
      def - the default value
      Returns:
      value of the Integer system property or the default value

    • getLongSafe

      public static Long getLongSafe(String name, Long def)
      Retrieves a Long System property
      Parameters:
      name - the name of the system property.
      def - the default value
      Returns:
      value of the Long system property or the default value