org.codehaus.plexus.component.configurator.converters
Class AbstractConfigurationConverter

java.lang.Object
  org.codehaus.plexus.component.configurator.converters.AbstractConfigurationConverter

All Implemented Interfaces:

ConfigurationConverter

Direct Known Subclasses:

AbstractBasicConverter, ArrayConverter, ClassRealmConverter, CollectionConverter, MapConverter, ObjectWithFieldsConverter, PlexusConfigurationConverter, PropertiesConverter

public abstract class AbstractConfigurationConverter
extends java.lang.Object
implements ConfigurationConverter

Version:

$Id: AbstractConfigurationConverter.java 6097 2007-03-15 15:29:27Z olamy $

Author:

Michal Maczka

Constructor Summary

AbstractConfigurationConverter()

Method Summary

java.lang.Object	fromConfiguration(ConverterLookup converterLookup, PlexusConfiguration configuration, java.lang.Class type, java.lang.Class baseType, java.lang.ClassLoader classLoader, ExpressionEvaluator expressionEvaluator)
protected java.lang.Object	fromExpression(PlexusConfiguration configuration, ExpressionEvaluator expressionEvaluator)
protected java.lang.Object	fromExpression(PlexusConfiguration configuration, ExpressionEvaluator expressionEvaluator, java.lang.Class type)
protected java.lang.String	fromXML(java.lang.String elementName)
protected java.lang.Class	getClassForImplementationHint(java.lang.Class type, PlexusConfiguration configuration, java.lang.ClassLoader classLoader) We will check if user has provided a hint which class should be used for given field.
protected java.lang.Object	instantiateObject(java.lang.Class clazz)
protected java.lang.Object	instantiateObject(java.lang.String classname, java.lang.ClassLoader classLoader)
protected java.lang.Class	loadClass(java.lang.String classname, java.lang.ClassLoader classLoader)
protected java.lang.String	toXML(java.lang.String fieldName)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.codehaus.plexus.component.configurator.converters.ConfigurationConverter

canConvert, fromConfiguration

Constructor Detail

AbstractConfigurationConverter

public AbstractConfigurationConverter()

Method Detail

getClassForImplementationHint

protected java.lang.Class getClassForImplementationHint(java.lang.Class type,
                                                        PlexusConfiguration configuration,
                                                        java.lang.ClassLoader classLoader)
                                                 throws ComponentConfigurationException

We will check if user has provided a hint which class should be used for given field. So we will check if something like is present in configuraion. If 'implementation' hint was provided we will try to load correspoding class If we are unable to do so error will be reported

Throws:

ComponentConfigurationException

loadClass

protected java.lang.Class loadClass(java.lang.String classname,
                                    java.lang.ClassLoader classLoader)
                             throws ComponentConfigurationException

Throws:

ComponentConfigurationException

instantiateObject

protected java.lang.Object instantiateObject(java.lang.String classname,
                                             java.lang.ClassLoader classLoader)
                                      throws ComponentConfigurationException

Throws:

ComponentConfigurationException

instantiateObject

protected java.lang.Object instantiateObject(java.lang.Class clazz)
                                      throws ComponentConfigurationException

Throws:

ComponentConfigurationException

fromXML

protected java.lang.String fromXML(java.lang.String elementName)

toXML

protected java.lang.String toXML(java.lang.String fieldName)

fromExpression

protected java.lang.Object fromExpression(PlexusConfiguration configuration,
                                          ExpressionEvaluator expressionEvaluator,
                                          java.lang.Class type)
                                   throws ComponentConfigurationException

Throws:

ComponentConfigurationException

fromExpression

protected java.lang.Object fromExpression(PlexusConfiguration configuration,
                                          ExpressionEvaluator expressionEvaluator)
                                   throws ComponentConfigurationException

Throws:

ComponentConfigurationException

fromConfiguration

public java.lang.Object fromConfiguration(ConverterLookup converterLookup,
                                          PlexusConfiguration configuration,
                                          java.lang.Class type,
                                          java.lang.Class baseType,
                                          java.lang.ClassLoader classLoader,
                                          ExpressionEvaluator expressionEvaluator)
                                   throws ComponentConfigurationException

Specified by:

fromConfiguration in interface ConfigurationConverter

Parameters:

converterLookup - Repository of available converters

type - the type of object to read

baseType - the type of object the the source is

classLoader - ClassLoader which should be used for loading classes

expressionEvaluator - the expression evaluator to use for expressions

Returns:

the object

Throws:

ComponentConfigurationException