org.springframework.integration.config.xml

Class IntegrationNamespaceUtils

java.lang.Object

org.springframework.integration.config.xml.IntegrationNamespaceUtils

public abstract class IntegrationNamespaceUtils
extends Object

Shared utility methods for integration namespace parsers.

Author:

Mark Fisher, Marius Bogoevici, Alex Peters, Oleg Zhurakousky, Gary Russell, Artem Bilan, Gunnar Hillert

Field Summary

Fields

Modifier and Type	Field and Description
static String	AUTO_STARTUP
static String	EXPRESSION_ATTRIBUTE
static String	METHOD_ATTRIBUTE
static String	ORDER
static String	PHASE
static String	REF_ATTRIBUTE
static String	REQUEST_HANDLER_ADVICE_CHAIN

Constructor Summary

Constructors

Constructor and Description
IntegrationNamespaceUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	checkAndConfigureFixedSubscriberChannel(Element element, ParserContext parserContext, String channelName, String handlerBeanName)
static ManagedList	configureAdviceChain(Element adviceChainElement, Element txElement, BeanDefinition parentBeanDefinition, ParserContext parserContext)
static void	configureAndSetAdviceChainIfPresent(Element adviceChainElement, Element txElement, BeanDefinition parentBeanDefinition, ParserContext parserContext)
static void	configureAndSetAdviceChainIfPresent(Element adviceChainElement, Element txElement, BeanDefinition parentBeanDefinition, ParserContext parserContext, String propertyName)
static void	configureHeaderMapper(Element element, BeanDefinitionBuilder rootBuilder, ParserContext parserContext, Class<?> headerMapperClass, String replyHeaderValue) Utility method to configure a HeaderMapper for Inbound and Outbound channel adapters/gateway.
static void	configurePollerMetadata(Element pollerElement, BeanDefinitionBuilder targetBuilder, ParserContext parserContext) Parse a "poller" element to provide a reference for the target BeanDefinitionBuilder.
static BeanDefinition	configureTransactionAttributes(Element txElement) Parse a "transactional" element and configure a TransactionInterceptor with "transactionManager" and other "transactionDefinition" properties.
static BeanDefinition	configureTransactionDefinition(Element txElement) Parse attributes of "transactional" element and configure a DefaultTransactionAttribute with provided "transactionDefinition" properties.
static String	createDirectChannel(Element element, ParserContext parserContext)
static String	createElementDescription(Element element) Provides a user friendly description of an element based on its node name and, if available, its "id" attribute value.
static BeanDefinition	createExpressionDefIfAttributeDefined(String expressionElementName, Element element)
static BeanDefinition	createExpressionDefinitionFromValueOrExpression(String valueElementName, String expressionElementName, ParserContext parserContext, Element element, boolean oneRequired)
static String[]	generateAlias(Element element)
static String	getTextFromAttributeOrNestedElement(Element element, String name, ParserContext parserContext) Get a text value from a named attribute if it exists, otherwise check for a nested element of the same name.
static BeanComponentDefinition	parseInnerHandlerDefinition(Element element, ParserContext parserContext)
static void	setReferenceIfAttributeDefined(BeanDefinitionBuilder builder, Element element, String attributeName) Configures the provided bean definition builder with a property reference to a bean.
static void	setReferenceIfAttributeDefined(BeanDefinitionBuilder builder, Element element, String attributeName, boolean emptyStringAllowed)
static void	setReferenceIfAttributeDefined(BeanDefinitionBuilder builder, Element element, String attributeName, String propertyName) Configures the provided bean definition builder with a property reference to a bean.
static void	setReferenceIfAttributeDefined(BeanDefinitionBuilder builder, Element element, String attributeName, String propertyName, boolean emptyStringAllowed)
static void	setValueIfAttributeDefined(BeanDefinitionBuilder builder, Element element, String attributeName) Configures the provided bean definition builder with a property value corresponding to the attribute whose name is provided if that attribute is defined in the given element.
static void	setValueIfAttributeDefined(BeanDefinitionBuilder builder, Element element, String attributeName, boolean emptyStringAllowed) Configures the provided bean definition builder with a property value corresponding to the attribute whose name is provided if that attribute is defined in the given element.
static void	setValueIfAttributeDefined(BeanDefinitionBuilder builder, Element element, String attributeName, String propertyName) Configures the provided bean definition builder with a property value corresponding to the attribute whose name is provided if that attribute is defined in the given element.
static void	setValueIfAttributeDefined(BeanDefinitionBuilder builder, Element element, String attributeName, String propertyName, boolean emptyStringAllowed) Configures the provided bean definition builder with a property value corresponding to the attribute whose name is provided if that attribute is defined in the given element.

Methods inherited from class java.lang.Object

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

Field Detail

REF_ATTRIBUTE

public static final String REF_ATTRIBUTE

See Also:

Constant Field Values

METHOD_ATTRIBUTE

public static final String METHOD_ATTRIBUTE

See Also:

Constant Field Values

ORDER

public static final String ORDER

See Also:

Constant Field Values

EXPRESSION_ATTRIBUTE

public static final String EXPRESSION_ATTRIBUTE

See Also:

Constant Field Values

REQUEST_HANDLER_ADVICE_CHAIN

public static final String REQUEST_HANDLER_ADVICE_CHAIN

See Also:

Constant Field Values

AUTO_STARTUP

public static final String AUTO_STARTUP

See Also:

Constant Field Values

PHASE

public static final String PHASE

See Also:

Constant Field Values

Constructor Detail

IntegrationNamespaceUtils

public IntegrationNamespaceUtils()

Method Detail

setValueIfAttributeDefined

public static void setValueIfAttributeDefined(BeanDefinitionBuilder builder,
                              Element element,
                              String attributeName,
                              String propertyName)

Configures the provided bean definition builder with a property value corresponding to the attribute whose name is provided if that attribute is defined in the given element.

Parameters:

builder - the bean definition builder to be configured

element - the XML element where the attribute should be defined

attributeName - the name of the attribute whose value will be used to populate the property

propertyName - the name of the property to be populated

setValueIfAttributeDefined

public static void setValueIfAttributeDefined(BeanDefinitionBuilder builder,
                              Element element,
                              String attributeName)

Configures the provided bean definition builder with a property value corresponding to the attribute whose name is provided if that attribute is defined in the given element.

The property name will be the camel-case equivalent of the lower case hyphen separated attribute (e.g. the "foo-bar" attribute would match the "fooBar" property).

Parameters:

builder - the bean definition builder to be configured

element - - the XML element where the attribute should be defined

attributeName - - the name of the attribute whose value will be set on the property

See Also:

Conventions.attributeNameToPropertyName(String)

setValueIfAttributeDefined

public static void setValueIfAttributeDefined(BeanDefinitionBuilder builder,
                              Element element,
                              String attributeName,
                              String propertyName,
                              boolean emptyStringAllowed)

Configures the provided bean definition builder with a property value corresponding to the attribute whose name is provided if that attribute is defined in the given element.

Parameters:

builder - the bean definition builder to be configured

element - the XML element where the attribute should be defined

attributeName - the name of the attribute whose value will be used to populate the property

propertyName - the name of the property to be populated

emptyStringAllowed - - if true, the value is set, even if an empty String (""); if false, an empty String is treated as if the attribute wasn't provided.

setValueIfAttributeDefined

public static void setValueIfAttributeDefined(BeanDefinitionBuilder builder,
                              Element element,
                              String attributeName,
                              boolean emptyStringAllowed)

Configures the provided bean definition builder with a property value corresponding to the attribute whose name is provided if that attribute is defined in the given element.

The property name will be the camel-case equivalent of the lower case hyphen separated attribute (e.g. the "foo-bar" attribute would match the "fooBar" property).

Parameters:

builder - the bean definition builder to be configured

element - - the XML element where the attribute should be defined

attributeName - - the name of the attribute whose value will be set on the property

emptyStringAllowed - - if true, the value is set, even if an empty String (""); if false, an empty String is treated as if the attribute wasn't provided.

See Also:

Conventions.attributeNameToPropertyName(String)

setReferenceIfAttributeDefined

public static void setReferenceIfAttributeDefined(BeanDefinitionBuilder builder,
                                  Element element,
                                  String attributeName,
                                  String propertyName)

Configures the provided bean definition builder with a property reference to a bean. The bean reference is identified by the value from the attribute whose name is provided if that attribute is defined in the given element.

Parameters:

builder - the bean definition builder to be configured

element - the XML element where the attribute should be defined

attributeName - the name of the attribute whose value will be used as a bean reference to populate the property

propertyName - the name of the property to be populated

setReferenceIfAttributeDefined

public static void setReferenceIfAttributeDefined(BeanDefinitionBuilder builder,
                                  Element element,
                                  String attributeName,
                                  String propertyName,
                                  boolean emptyStringAllowed)

setReferenceIfAttributeDefined

public static void setReferenceIfAttributeDefined(BeanDefinitionBuilder builder,
                                  Element element,
                                  String attributeName)

Configures the provided bean definition builder with a property reference to a bean. The bean reference is identified by the value from the attribute whose name is provided if that attribute is defined in the given element.

The property name will be the camel-case equivalent of the lower case hyphen separated attribute (e.g. the "foo-bar" attribute would match the "fooBar" property).

Parameters:

builder - the bean definition builder to be configured

element - - the XML element where the attribute should be defined

attributeName - - the name of the attribute whose value will be used as a bean reference to populate the property

See Also:

Conventions.attributeNameToPropertyName(String), Conventions.attributeNameToPropertyName(String)

setReferenceIfAttributeDefined

public static void setReferenceIfAttributeDefined(BeanDefinitionBuilder builder,
                                  Element element,
                                  String attributeName,
                                  boolean emptyStringAllowed)

createElementDescription

public static String createElementDescription(Element element)

Provides a user friendly description of an element based on its node name and, if available, its "id" attribute value. This is useful for creating error messages from within bean definition parsers.

Parameters:

element - The element.

Returns:

The description.

configurePollerMetadata

public static void configurePollerMetadata(Element pollerElement,
                           BeanDefinitionBuilder targetBuilder,
                           ParserContext parserContext)

Parse a "poller" element to provide a reference for the target BeanDefinitionBuilder. If the poller element does not contain a "ref" attribute, this will create and register a PollerMetadata instance and then add it as a property reference of the target builder.

Parameters:

pollerElement - the "poller" element to parse

targetBuilder - the builder that expects the "trigger" property

parserContext - the parserContext for the target builder

getTextFromAttributeOrNestedElement

public static String getTextFromAttributeOrNestedElement(Element element,
                                         String name,
                                         ParserContext parserContext)

Get a text value from a named attribute if it exists, otherwise check for a nested element of the same name. If both are specified it is an error, but if neither is specified, just returns null.

Parameters:

element - a DOM node

name - the name of the property (attribute or child element)

parserContext - the current context

Returns:

the text from the attribite or element or null

parseInnerHandlerDefinition

public static BeanComponentDefinition parseInnerHandlerDefinition(Element element,
                                                  ParserContext parserContext)

configureHeaderMapper

public static void configureHeaderMapper(Element element,
                         BeanDefinitionBuilder rootBuilder,
                         ParserContext parserContext,
                         Class<?> headerMapperClass,
                         String replyHeaderValue)

Utility method to configure a HeaderMapper for Inbound and Outbound channel adapters/gateway.

Parameters:

element - The element.

rootBuilder - The root builder.

parserContext - The parser context.

headerMapperClass - The header mapper class.

replyHeaderValue - The reply header value.

configureTransactionAttributes

public static BeanDefinition configureTransactionAttributes(Element txElement)

Parse a "transactional" element and configure a TransactionInterceptor with "transactionManager" and other "transactionDefinition" properties. For example, this advisor will be applied on the Polling Task proxy.

Parameters:

txElement - The transactional element.

Returns:

The bean definition.

See Also:

AbstractPollingEndpoint

configureTransactionDefinition

public static BeanDefinition configureTransactionDefinition(Element txElement)

Parse attributes of "transactional" element and configure a DefaultTransactionAttribute with provided "transactionDefinition" properties.

Parameters:

txElement - The transactional element.

Returns:

The bean definition.

generateAlias

public static String[] generateAlias(Element element)

configureAndSetAdviceChainIfPresent

public static void configureAndSetAdviceChainIfPresent(Element adviceChainElement,
                                       Element txElement,
                                       BeanDefinition parentBeanDefinition,
                                       ParserContext parserContext)

configureAndSetAdviceChainIfPresent

public static void configureAndSetAdviceChainIfPresent(Element adviceChainElement,
                                       Element txElement,
                                       BeanDefinition parentBeanDefinition,
                                       ParserContext parserContext,
                                       String propertyName)

configureAdviceChain

public static ManagedList configureAdviceChain(Element adviceChainElement,
                               Element txElement,
                               BeanDefinition parentBeanDefinition,
                               ParserContext parserContext)

createExpressionDefinitionFromValueOrExpression

public static BeanDefinition createExpressionDefinitionFromValueOrExpression(String valueElementName,
                                                             String expressionElementName,
                                                             ParserContext parserContext,
                                                             Element element,
                                                             boolean oneRequired)

createExpressionDefIfAttributeDefined

public static BeanDefinition createExpressionDefIfAttributeDefined(String expressionElementName,
                                                   Element element)

createDirectChannel

public static String createDirectChannel(Element element,
                         ParserContext parserContext)

checkAndConfigureFixedSubscriberChannel

public static void checkAndConfigureFixedSubscriberChannel(Element element,
                                           ParserContext parserContext,
                                           String channelName,
                                           String handlerBeanName)