Package org.apache.tapestry5.internal.plastic

Class PlasticInternalUtils

java.lang.Object

org.apache.tapestry5.internal.plastic.PlasticInternalUtils

public class PlasticInternalUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static String[]	EMPTY

Constructor Summary

Constructors

Constructor	Description
PlasticInternalUtils()

Method Summary

Modifier and Type	Method	Description
static String	capitalize(String input)	Capitalizes the input string, converting the first character to upper case.
static void	close(Closeable closeable)
static org.apache.tapestry5.internal.plastic.asm.tree.ClassNode	convertBytecodeToClassNode(byte[] bytecode)
static String	dissasembleBytecode(org.apache.tapestry5.internal.plastic.asm.tree.ClassNode classNode)
static Object	getFromInstanceContext(InstanceContext context, String javaName)
static boolean	isBlank(String input)
static boolean	isEmpty(Object[] input)
static boolean	isEqual(Object left, Object right)	Returns true if both objects are the same instance, or both null, or left equals right.
static boolean	isNonBlank(String input)
static <K,V> ConcurrentMap<K,V>	newConcurrentMap()
static <T> List<T>	newList()
static <K,V> Map<K,V>	newMap()
static <T> Set<T>	newSet()
static String	objectDescriptorToClassName(String descriptor)	Converts an object type descriptor (i.e.
static String[]	orEmpty(String[] input)
static byte[]	readBytecodeForClass(ClassLoader loader, String className, boolean mustExist)
static Class	toClass(ClassLoader loader, String javaName)
static String	toClassName(String internalName)	Converts a class's internal name (i.e., using slashes) to Java source code format (i.e., using periods).
static String	toClassPath(String className)
static String	toDescriptor(String className)	Converts a primitive type or fully qualified class name (or array form) to a descriptor.
static String	toInternalName(String className)
static String	toMessage(Throwable t)
static MethodDescription	toMethodDescription(org.apache.tapestry5.internal.plastic.asm.tree.MethodNode node)
static String	toPropertyName(String fieldName)	Strips out leading and trailing underscores, leaving the real property name.

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

public static final String[] EMPTY

Constructor Detail

PlasticInternalUtils

public PlasticInternalUtils()

Method Detail

isEmpty

public static boolean isEmpty(Object[] input)

orEmpty

public static String[] orEmpty(String[] input)

isBlank

public static boolean isBlank(String input)

isNonBlank

public static boolean isNonBlank(String input)

toInternalName

public static String toInternalName(String className)

toClassPath

public static String toClassPath(String className)

toMessage

public static String toMessage(Throwable t)

close

public static void close(Closeable closeable)

toMethodDescription

public static MethodDescription toMethodDescription(org.apache.tapestry5.internal.plastic.asm.tree.MethodNode node)

toClassName

public static String toClassName(String internalName)

Converts a class's internal name (i.e., using slashes) to Java source code format (i.e., using periods).

toDescriptor

public static String toDescriptor(String className)

Converts a primitive type or fully qualified class name (or array form) to a descriptor.

• boolean --> Z
• java.lang.Integer --> Ljava/lang/Integer;
• char[] --> [C
• java.lang.String[][] --> [[java/lang/String;

objectDescriptorToClassName

public static String objectDescriptorToClassName(String descriptor)

Converts an object type descriptor (i.e. "Ljava/lang/Object;") to a class name ("java.lang.Object").

newMap

public static <K,V> Map<K,V> newMap()

newConcurrentMap

public static <K,V> ConcurrentMap<K,V> newConcurrentMap()

newSet

public static <T> Set<T> newSet()

newList

public static <T> List<T> newList()

dissasembleBytecode

public static String dissasembleBytecode(org.apache.tapestry5.internal.plastic.asm.tree.ClassNode classNode)

toPropertyName

public static String toPropertyName(String fieldName)

Strips out leading and trailing underscores, leaving the real property name. In addition, "m_foo" is converted to "foo".

Parameters:

fieldName - to convert

Returns:

the property name

capitalize

public static String capitalize(String input)

Capitalizes the input string, converting the first character to upper case.

Parameters:

input - a non-empty string

Returns:

the same string if already capitalized, or a capitalized version

toClass

public static Class toClass(ClassLoader loader,
                            String javaName)
                     throws ClassNotFoundException

Parameters:

loader - class loader to look up in

javaName - java name is Java source format (e.g., "int", "int[]", "java.lang.String", "java.lang.String[]", etc.)

Returns:

class instance

Throws:

ClassNotFoundException

getFromInstanceContext

public static Object getFromInstanceContext(InstanceContext context,
                                            String javaName)

isEqual

public static boolean isEqual(Object left,
                              Object right)

Returns true if both objects are the same instance, or both null, or left equals right.

readBytecodeForClass

public static byte[] readBytecodeForClass(ClassLoader loader,
                                          String className,
                                          boolean mustExist)

convertBytecodeToClassNode

public static org.apache.tapestry5.internal.plastic.asm.tree.ClassNode convertBytecodeToClassNode(byte[] bytecode)