Class IntrospectionUtils

java.lang.Object
org.apache.tomcat.util.IntrospectionUtils

public final class IntrospectionUtils extends Object
Utils for introspection and reflection
  • Constructor Details

    • IntrospectionUtils

      public IntrospectionUtils()
  • Method Details

    • setProperty

      public static boolean setProperty(Object o, String name, String value)
      Find a method with the right name If found, call the method ( if param is int or boolean we'll convert value to the right type before) - that means you can have setDebug(1).
      Parameters:
      o - The object to set a property on
      name - The property name
      value - The property value
      Returns:
      true if operation was successful
    • setProperty

      public static boolean setProperty(Object o, String name, String value, boolean invokeSetProperty)
    • getProperty

      public static Object getProperty(Object o, String name)
    • replaceProperties

      @Deprecated public static String replaceProperties(String value, Hashtable<Object,Object> staticProp, IntrospectionUtils.PropertySource[] dynamicProp)
      Replaces ${NAME} in the value with the value of the property 'NAME'. Replaces ${NAME:DEFAULT} with the value of the property 'NAME:DEFAULT', if the property 'NAME:DEFAULT' is not set, the expression is replaced with the value of the property 'NAME', if the property 'NAME' is not set, the expression is replaced with 'DEFAULT'. If the property is not set and there is no default the value will be returned unmodified.
      Parameters:
      value - The value
      staticProp - Replacement properties
      dynamicProp - Replacement properties
      Returns:
      the replacement value
    • replaceProperties

      public static String replaceProperties(String value, Hashtable<Object,Object> staticProp, IntrospectionUtils.PropertySource[] dynamicProp, ClassLoader classLoader)
      Replace ${NAME} with the property value.
      Parameters:
      value - The value
      staticProp - Replacement properties
      dynamicProp - Replacement properties
      classLoader - Class loader associated with the code requesting the property
      Returns:
      the replacement value
    • capitalize

      public static String capitalize(String name)
      Reverse of Introspector.decapitalize.
      Parameters:
      name - The name
      Returns:
      the capitalized string
    • clear

      public static void clear()
    • findMethods

      public static Method[] findMethods(Class<?> c)
    • findMethod

      public static Method findMethod(Class<?> c, String name, Class<?>[] params)
    • callMethod1

      public static Object callMethod1(Object target, String methodN, Object param1, String typeParam1, ClassLoader cl) throws Exception
      Throws:
      Exception
    • callMethodN

      public static Object callMethodN(Object target, String methodN, Object[] params, Class<?>[] typeParams) throws Exception
      Throws:
      Exception
    • convert

      public static Object convert(String object, Class<?> paramType)
    • isInstance

      public static boolean isInstance(Class<?> clazz, String type)
      Checks to see if the specified class is an instance of or assignable from the specified type. The class clazz, all its superclasses, interfaces and those superinterfaces are tested for a match against the type name type. This is similar to instanceof or Class.isAssignableFrom(java.lang.Class<?>) except that the target type will not be resolved into a Class object, which provides some security and memory benefits.
      Parameters:
      clazz - The class to test for a match.
      type - The name of the type that clazz must be.
      Returns:
      true if the clazz tested is an instance of the specified type, false otherwise.