org.apache.camel.impl.converter
Class AnnotationTypeConverterLoader

java.lang.Object
  org.apache.camel.impl.converter.AnnotationTypeConverterLoader

All Implemented Interfaces:

TypeConverterLoader

public class AnnotationTypeConverterLoader
extends Object
implements TypeConverterLoader

A class which will auto-discover converter objects and methods to pre-load the registry of converters on startup

Version:

$Revision: 901136 $

Field Summary

static String	META_INF_SERVICES
protected PackageScanClassResolver	resolver

Constructor Summary

AnnotationTypeConverterLoader(PackageScanClassResolver resolver)

Method Summary

protected String[]	findPackageNames() Finds the names of the packages to search for on the classpath looking for text files on the classpath at the META_INF_SERVICES location.
protected void	findPackages(Set<String> packages, ClassLoader classLoader)
protected boolean	isValidConverterMethod(Method method)
protected boolean	isValidFallbackConverterMethod(Method method)
void	load(TypeConverterRegistry registry) A pluggable strategy to load type converters into a registry from some kind of mechanism
protected void	loadConverterMethods(TypeConverterRegistry registry, Class<?> type) Loads all of the converter methods for the given type
protected void	registerFallbackTypeConverter(TypeConverterRegistry registry, TypeConverter typeConverter)
protected void	registerTypeConverter(TypeConverterRegistry registry, Method method, Class<?> toType, Class<?> fromType, TypeConverter typeConverter)

Methods inherited from class java.lang.Object

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

Field Detail

META_INF_SERVICES

public static final String META_INF_SERVICES

See Also:

Constant Field Values

resolver

protected PackageScanClassResolver resolver

Constructor Detail

AnnotationTypeConverterLoader

public AnnotationTypeConverterLoader(PackageScanClassResolver resolver)

Method Detail

load

public void load(TypeConverterRegistry registry)
          throws Exception

Description copied from interface: TypeConverterLoader

A pluggable strategy to load type converters into a registry from some kind of mechanism

Specified by:

load in interface TypeConverterLoader

Parameters:

registry - the registry to load the type converters into

Throws:

Exception - if the type converters could not be loaded

findPackageNames

protected String[] findPackageNames()
                             throws IOException

Finds the names of the packages to search for on the classpath looking for text files on the classpath at the META_INF_SERVICES location.

Returns:

a collection of packages to search for

Throws:

IOException - is thrown for IO related errors

findPackages

protected void findPackages(Set<String> packages,
                            ClassLoader classLoader)
                     throws IOException

Throws:

IOException

loadConverterMethods

protected void loadConverterMethods(TypeConverterRegistry registry,
                                    Class<?> type)

Loads all of the converter methods for the given type

registerTypeConverter

protected void registerTypeConverter(TypeConverterRegistry registry,
                                     Method method,
                                     Class<?> toType,
                                     Class<?> fromType,
                                     TypeConverter typeConverter)

isValidConverterMethod

protected boolean isValidConverterMethod(Method method)

registerFallbackTypeConverter

protected void registerFallbackTypeConverter(TypeConverterRegistry registry,
                                             TypeConverter typeConverter)

isValidFallbackConverterMethod

protected boolean isValidFallbackConverterMethod(Method method)