/*-
* #%L
* Slice - Core
* $Id:$
* $HeadURL:$
* %%
* Copyright (C) 2012 Cognifide Limited
* %%
* 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.
* #L%
*/
package com.cognifide.slice.core.internal.adapter;
import org.apache.sling.api.adapter.AdapterFactory;
import org.apache.sling.api.resource.Resource;
import com.cognifide.slice.api.context.ConstantContextProvider;
import com.cognifide.slice.api.context.Context;
import com.cognifide.slice.api.context.ContextFactory;
import com.cognifide.slice.api.context.ContextProvider;
import com.cognifide.slice.api.context.RequestContextProvider;
import com.cognifide.slice.api.injector.InjectorWithContext;
import com.cognifide.slice.api.injector.InjectorsRepository;
import com.cognifide.slice.api.provider.ModelProvider;
public class SliceAdapterFactory implements AdapterFactory {
private final InjectorsRepository repository;
private final String injectorName;
private final RequestContextProvider requestContextProvider;
public SliceAdapterFactory(String injectorName, InjectorsRepository repository,
RequestContextProvider requestContextProvider) {
this.repository = repository;
this.requestContextProvider = requestContextProvider;
this.injectorName = injectorName;
}
@Override
public <AdapterType> AdapterType getAdapter(Object adaptable, Class<AdapterType> type) {
if (!(adaptable instanceof Resource)) {
return null;
}
Resource resource = (Resource) adaptable;
InjectorWithContext injector = getInjector(resource);
try {
ModelProvider modelProvider = injector.getInstance(ModelProvider.class);
return modelProvider.get(type, resource);
} finally {
injector.popContextProvider();
}
}
private InjectorWithContext getInjector(Resource resource) {
InjectorWithContext injector = repository.getInjector(injectorName);
ContextProvider contextProvider = requestContextProvider.getContextProvider(injectorName);
if (contextProvider == null) {
ContextFactory factory = injector.getInstance(ContextFactory.class);
Context context = factory.getResourceResolverContext(resource.getResourceResolver());
contextProvider = new ConstantContextProvider(context);
}
injector.pushContextProvider(contextProvider);
return injector;
}
}