Package serp.util

Class Strings

  • public class Strings
extends java.lang.Object
    String utiltity methods.
    Author:
    Abe White

    • Constructor Summary

      Constructors 
      Constructor Description
      Strings()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static boolean canParse​(java.lang.Class type)
      Whether the given type is parsable via parse(java.lang.String, java.lang.Class).
      static java.lang.String getClassName​(java.lang.Class cls)
      Return only the class name, without package.
      static java.lang.String getClassName​(java.lang.String fullName)
      Return only the class name.
      static java.lang.String getPackageName​(java.lang.Class cls)
      Return only the package, or empty string if none.
      static java.lang.String getPackageName​(java.lang.String fullName)
      Return only the package, or empty string if none.
      static java.lang.String join​(java.lang.Object[] strings, java.lang.String token)
      Joins the given strings, placing the given token between them.
      static java.lang.Object parse​(java.lang.String val, java.lang.Class type)
      Return val as the type specified by type.
      static java.lang.String replace​(java.lang.String str, java.lang.String from, java.lang.String to)
      Replace all instances of from in str with to.
      static java.lang.String[] split​(java.lang.String str, java.lang.String token, int max)
      Splits the given string on the given token.
      static java.lang.Class toClass​(java.lang.String str, boolean resolve, java.lang.ClassLoader loader)
      Return the class for the given string, correctly handling primitive types.
      static java.lang.Class toClass​(java.lang.String str, java.lang.ClassLoader loader)
      Return the class for the given string, correctly handling primitive types.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • Strings

        public Strings()

    • Method Detail

      • replace

        public static java.lang.String replace​(java.lang.String str,
                                       java.lang.String from,
                                       java.lang.String to)
        Replace all instances of from in str with to.
        Parameters:
        str - the candidate string to replace
        from - the token to replace
        to - the new token
        Returns:
        the string with all the replacements made

      • split

        public static java.lang.String[] split​(java.lang.String str,
                                       java.lang.String token,
                                       int max)
        Splits the given string on the given token. Follows the semantics of the Java 1.4 String.split(String,int) method, but does not treat the given token as a regular expression.

      • join

        public static java.lang.String join​(java.lang.Object[] strings,
                                    java.lang.String token)
        Joins the given strings, placing the given token between them.

      • toClass

        public static java.lang.Class toClass​(java.lang.String str,
                                      java.lang.ClassLoader loader)
        Return the class for the given string, correctly handling primitive types. If the given class loader is null, the context loader of the current thread will be used.
        Throws:
        java.lang.RuntimeException - on load error

      • toClass

        public static java.lang.Class toClass​(java.lang.String str,
                                      boolean resolve,
                                      java.lang.ClassLoader loader)
        Return the class for the given string, correctly handling primitive types. If the given class loader is null, the context loader of the current thread will be used.
        Throws:
        java.lang.RuntimeException - on load error

      • getClassName

        public static java.lang.String getClassName​(java.lang.Class cls)
        Return only the class name, without package.

      • getClassName

        public static java.lang.String getClassName​(java.lang.String fullName)
        Return only the class name.

      • getPackageName

        public static java.lang.String getPackageName​(java.lang.Class cls)
        Return only the package, or empty string if none.

      • getPackageName

        public static java.lang.String getPackageName​(java.lang.String fullName)
        Return only the package, or empty string if none.

      • parse

        public static java.lang.Object parse​(java.lang.String val,
                                     java.lang.Class type)
        Return val as the type specified by type. If type is a primitive, the primitive wrapper type is created and returned, and nulls are converted to the Java default for the primitive type.
        Parameters:
        val - The string value to parse
        type - The type to parse. This must be a primitive or a primitive wrapper, or one of BigDecimal, BigInteger, String, Date.
        Throws:
        java.lang.IllegalArgumentException - if type is not a supported type, or if val cannot be converted into an instance of type type.