/*
* (C) Copyright 2006-2007 Nuxeo SA (http://nuxeo.com/) and others.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Contributors:
* Nuxeo - initial API and implementation
*
* $Id$
*/
package org.nuxeo.ecm.platform.content.template.service;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.nuxeo.ecm.core.api.CoreSession;
import org.nuxeo.ecm.core.api.DocumentModel;
import org.nuxeo.ecm.core.repository.RepositoryInitializationHandler;
import org.nuxeo.ecm.platform.content.template.listener.RepositoryInitializationListener;
import org.nuxeo.runtime.model.ComponentContext;
import org.nuxeo.runtime.model.ComponentInstance;
import org.nuxeo.runtime.model.DefaultComponent;
public class ContentTemplateServiceImpl extends DefaultComponent implements ContentTemplateService {
public static final String NAME = "org.nuxeo.ecm.platform.content.template.service.TemplateService";
public static final String FACTORY_DECLARATION_EP = "factory";
public static final String FACTORY_BINDING_EP = "factoryBinding";
public static final String POST_CONTENT_CREATION_HANDLERS_EP = "postContentCreationHandlers";
private static final Log log = LogFactory.getLog(ContentTemplateServiceImpl.class);
private final Map<String, ContentFactoryDescriptor> factories = new HashMap<String, ContentFactoryDescriptor>();
private final Map<String, FactoryBindingDescriptor> factoryBindings = new HashMap<String, FactoryBindingDescriptor>();
private PostContentCreationHandlerRegistry postContentCreationHandlers;
private RepositoryInitializationHandler initializationHandler;
@Override
public void activate(ComponentContext context) {
// register our Repo init listener
initializationHandler = new RepositoryInitializationListener();
initializationHandler.install();
postContentCreationHandlers = new PostContentCreationHandlerRegistry();
}
@Override
public void deactivate(ComponentContext context) {
if (initializationHandler != null) {
initializationHandler.uninstall();
}
}
@Override
public void registerContribution(Object contribution, String extensionPoint, ComponentInstance contributor) {
if (extensionPoint.equals(FACTORY_DECLARATION_EP)) {
// store factories
ContentFactoryDescriptor descriptor = (ContentFactoryDescriptor) contribution;
factories.put(descriptor.getName(), descriptor);
} else if (extensionPoint.equals(FACTORY_BINDING_EP)) {
// store factories binding to types
FactoryBindingDescriptor descriptor = (FactoryBindingDescriptor) contribution;
if (factories.containsKey(descriptor.getFactoryName())) {
String targetType = descriptor.getTargetType();
String targetFacet = descriptor.getTargetFacet();
// merge binding
if (descriptor.getAppend()) {
descriptor = mergeFactoryBindingDescriptor(descriptor);
}
// check instantiation errors
if (getFactoryInstance(descriptor) == null) {
return;
}
// store binding
if (null != targetType) {
factoryBindings.put(targetType, descriptor);
} else {
factoryBindings.put(targetFacet, descriptor);
}
} else {
log.error("Factory Binding" + descriptor.getName() + " can not be registered since Factory "
+ descriptor.getFactoryName() + " is not registered");
}
} else if (POST_CONTENT_CREATION_HANDLERS_EP.equals(extensionPoint)) {
PostContentCreationHandlerDescriptor descriptor = (PostContentCreationHandlerDescriptor) contribution;
postContentCreationHandlers.addContribution(descriptor);
}
}
private FactoryBindingDescriptor mergeFactoryBindingDescriptor(FactoryBindingDescriptor newOne) {
FactoryBindingDescriptor old = null;
if (null != newOne.getTargetType()) {
old = factoryBindings.get(newOne.getTargetType());
} else {
old = factoryBindings.get(newOne.getTargetFacet());
}
if (old != null) {
log.info("FactoryBinding " + old.getName() + " is merging with " + newOne.getName());
old.getOptions().putAll(newOne.getOptions());
old.getRootAcl().addAll(newOne.getRootAcl());
old.getTemplate().addAll(newOne.getTemplate());
return old;
}
return newOne;
}
/*
* Instantiate a new factory for each caller, because factories are actually stateful, they contain the session of
* their root.
*/
@Override
public ContentFactory getFactoryForType(String documentType) {
FactoryBindingDescriptor descriptor = factoryBindings.get(documentType);
if (descriptor == null || !documentType.equals(descriptor.getTargetType())) {
return null;
}
return getFactoryInstance(descriptor);
}
/*
* Instantiate a new factory for each caller, because factories are actually stateful, they contain the session of
* their root.
*/
public ContentFactory getFactoryForFacet(String facet) {
FactoryBindingDescriptor descriptor = factoryBindings.get(facet);
if (descriptor == null || !facet.equals(descriptor.getTargetFacet())) {
return null;
}
return getFactoryInstance(descriptor);
}
protected ContentFactory getFactoryInstance(FactoryBindingDescriptor descriptor) {
ContentFactoryDescriptor factoryDescriptor = factories.get(descriptor.getFactoryName());
try {
ContentFactory factory = factoryDescriptor.getClassName().newInstance();
boolean factoryOK = factory.initFactory(descriptor.getOptions(), descriptor.getRootAcl(),
descriptor.getTemplate());
if (!factoryOK) {
log.error("Error while initializing instance of factory " + factoryDescriptor.getName());
return null;
}
return factory;
} catch (ReflectiveOperationException e) {
log.error(
"Error while creating instance of factory " + factoryDescriptor.getName() + " :" + e.getMessage());
return null;
}
}
public void executeFactoryForType(DocumentModel createdDocument) {
ContentFactory factory = getFactoryForType(createdDocument.getType());
if (factory != null) {
factory.createContentStructure(createdDocument);
}
Set<String> facets = createdDocument.getFacets();
for (String facet : facets) {
factory = getFactoryForFacet(facet);
if (factory != null) {
factory.createContentStructure(createdDocument);
}
}
}
@Override
public void executePostContentCreationHandlers(CoreSession session) {
for (PostContentCreationHandler handler : postContentCreationHandlers.getOrderedHandlers()) {
handler.execute(session);
}
}
// for testing
public Map<String, ContentFactoryDescriptor> getFactories() {
return factories;
}
public Map<String, FactoryBindingDescriptor> getFactoryBindings() {
return factoryBindings;
}
}