Package org.apache.tomcat.util
Class IntrospectionUtils
- java.lang.Object
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- org.apache.tomcat.util.IntrospectionUtils
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public final class IntrospectionUtils extends Object
Utils for introspection and reflection
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Nested Class Summary
Nested Classes Modifier and Type Class Description static interfaceIntrospectionUtils.PropertySourcestatic interfaceIntrospectionUtils.SecurePropertySource
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Constructor Summary
Constructors Constructor Description IntrospectionUtils()
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Method Summary
All Methods Static Methods Concrete Methods Deprecated Methods Modifier and Type Method Description static ObjectcallMethod1(Object target, String methodN, Object param1, String typeParam1, ClassLoader cl)static ObjectcallMethodN(Object target, String methodN, Object[] params, Class<?>[] typeParams)static Stringcapitalize(String name)Reverse of Introspector.decapitalize.static voidclear()static Objectconvert(String object, Class<?> paramType)static MethodfindMethod(Class<?> c, String name, Class<?>[] params)static Method[]findMethods(Class<?> c)static ObjectgetProperty(Object o, String name)static booleanisInstance(Class<?> clazz, String type)Checks to see if the specified class is an instance of or assignable from the specified type.static StringreplaceProperties(String value, Hashtable<Object,Object> staticProp, IntrospectionUtils.PropertySource[] dynamicProp)static StringreplaceProperties(String value, Hashtable<Object,Object> staticProp, IntrospectionUtils.PropertySource[] dynamicProp, ClassLoader classLoader)Replace ${NAME} with the property value.static booleansetProperty(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).static booleansetProperty(Object o, String name, String value, boolean invokeSetProperty)
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Method Detail
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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 onname- The property namevalue- The property value- Returns:
trueif operation was successful
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setProperty
public static boolean setProperty(Object o, String name, String value, boolean invokeSetProperty)
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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 valuestaticProp- Replacement propertiesdynamicProp- Replacement properties- Returns:
- the replacement value
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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 valuestaticProp- Replacement propertiesdynamicProp- Replacement propertiesclassLoader- Class loader associated with the code requesting the property- Returns:
- the replacement value
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capitalize
public static String capitalize(String name)
Reverse of Introspector.decapitalize.- Parameters:
name- The name- Returns:
- the capitalized string
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clear
public static void clear()
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callMethod1
public static Object callMethod1(Object target, String methodN, Object param1, String typeParam1, ClassLoader cl) throws Exception
- Throws:
Exception
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callMethodN
public static Object callMethodN(Object target, String methodN, Object[] params, Class<?>[] typeParams) throws Exception
- Throws:
Exception
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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 classclazz, all its superclasses, interfaces and those superinterfaces are tested for a match against the type nametype. This is similar toinstanceoforClass.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 thatclazzmust be.- Returns:
trueif theclazztested is an instance of the specifiedtype,falseotherwise.
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