package org.springframework.roo.addon.web.mvc.controller.addon.config;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Service;
import org.osgi.service.component.ComponentContext;
import org.springframework.roo.classpath.PhysicalTypeIdentifier;
import org.springframework.roo.classpath.PhysicalTypeMetadata;
import org.springframework.roo.classpath.customdata.taggers.CustomDataKeyDecorator;
import org.springframework.roo.classpath.customdata.taggers.CustomDataKeyDecoratorTracker;
import org.springframework.roo.classpath.details.ItdTypeDetails;
import org.springframework.roo.classpath.details.MemberHoldingTypeDetails;
import org.springframework.roo.classpath.details.annotations.AnnotationAttributeValue;
import org.springframework.roo.classpath.details.annotations.AnnotationMetadata;
import org.springframework.roo.classpath.itd.AbstractMemberDiscoveringItdMetadataProvider;
import org.springframework.roo.classpath.itd.ItdTypeDetailsProvidingMetadataItem;
import org.springframework.roo.metadata.MetadataDependencyRegistry;
import org.springframework.roo.metadata.internal.MetadataDependencyRegistryTracker;
import org.springframework.roo.model.JavaType;
import org.springframework.roo.model.RooJavaType;
import org.springframework.roo.project.LogicalPath;
import org.springframework.roo.support.logging.HandlerUtils;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.logging.Logger;
/**
* Implementation of {@link WebMvcConfigurationMetadataProvider}.
*
* @author Juan Carlos García
* @author Jose Manuel Vivó
* @since 2.0
*/
@Component
@Service
public class WebMvcConfigurationMetadataProviderImpl extends
AbstractMemberDiscoveringItdMetadataProvider implements WebMvcConfigurationMetadataProvider {
protected final static Logger LOGGER = HandlerUtils
.getLogger(WebMvcConfigurationMetadataProviderImpl.class);
private final Map<JavaType, String> domainTypeToServiceMidMap =
new LinkedHashMap<JavaType, String>();
protected MetadataDependencyRegistryTracker registryTracker = null;
protected CustomDataKeyDecoratorTracker keyDecoratorTracker = null;
/**
* This service is being activated so setup it:
* <ul>
* <li>Create and open the {@link MetadataDependencyRegistryTracker}.</li>
* <li>Create and open the {@link CustomDataKeyDecoratorTracker}.</li>
* <li>Registers {@link RooJavaType#ROO_WEB_MVC_CONFIGURATION} as additional
* JavaType that will trigger metadata registration.</li>
* <li>Set ensure the governor type details represent a class.</li>
* </ul>
*/
@Override
protected void activate(final ComponentContext cContext) {
context = cContext.getBundleContext();
this.registryTracker =
new MetadataDependencyRegistryTracker(context, this,
PhysicalTypeIdentifier.getMetadataIdentiferType(), getProvidesType());
this.registryTracker.open();
addMetadataTrigger(RooJavaType.ROO_WEB_MVC_CONFIGURATION);
}
/**
* This service is being deactivated so unregister upstream-downstream
* dependencies, triggers, matchers and listeners.
*
* @param context
*/
protected void deactivate(final ComponentContext context) {
MetadataDependencyRegistry registry = this.registryTracker.getService();
registry.removeNotificationListener(this);
registry.deregisterDependency(PhysicalTypeIdentifier.getMetadataIdentiferType(),
getProvidesType());
this.registryTracker.close();
removeMetadataTrigger(RooJavaType.ROO_WEB_MVC_CONFIGURATION);
CustomDataKeyDecorator keyDecorator = this.keyDecoratorTracker.getService();
keyDecorator.unregisterMatchers(getClass());
this.keyDecoratorTracker.close();
}
@Override
protected String createLocalIdentifier(final JavaType javaType, final LogicalPath path) {
return WebMvcConfigurationMetadata.createIdentifier(javaType, path);
}
@Override
protected String getGovernorPhysicalTypeIdentifier(final String metadataIdentificationString) {
final JavaType javaType = WebMvcConfigurationMetadata.getJavaType(metadataIdentificationString);
final LogicalPath path = WebMvcConfigurationMetadata.getPath(metadataIdentificationString);
return PhysicalTypeIdentifier.createIdentifier(javaType, path);
}
public String getItdUniquenessFilenameSuffix() {
return "WebMvcConfiguration";
}
@Override
protected String getLocalMidToRequest(final ItdTypeDetails itdTypeDetails) {
// Determine the governor for this ITD, and whether any metadata is even
// hoping to hear about changes to that JavaType and its ITDs
final JavaType governor = itdTypeDetails.getName();
final String localMid = domainTypeToServiceMidMap.get(governor);
if (localMid != null) {
return localMid;
}
final MemberHoldingTypeDetails memberHoldingTypeDetails =
getTypeLocationService().getTypeDetails(governor);
if (memberHoldingTypeDetails != null) {
for (final JavaType type : memberHoldingTypeDetails.getLayerEntities()) {
final String localMidType = domainTypeToServiceMidMap.get(type);
if (localMidType != null) {
return localMidType;
}
}
}
return null;
}
@Override
protected ItdTypeDetailsProvidingMetadataItem getMetadata(
final String metadataIdentificationString, final JavaType aspectName,
final PhysicalTypeMetadata governorPhysicalTypeMetadata, final String itdFilename) {
AnnotationMetadata annotation =
governorPhysicalTypeMetadata.getMemberHoldingTypeDetails().getAnnotation(
RooJavaType.ROO_WEB_MVC_CONFIGURATION);
// Getting language attribute
AnnotationAttributeValue<String> defaultLanguageAttr =
annotation.getAttribute("defaultLanguage");
String defaultLanguage = "";
if (defaultLanguageAttr != null) {
defaultLanguage = defaultLanguageAttr.getValue();
}
return new WebMvcConfigurationMetadata(metadataIdentificationString, aspectName,
governorPhysicalTypeMetadata, defaultLanguage);
}
public String getProvidesType() {
return WebMvcConfigurationMetadata.getMetadataIdentiferType();
}
}