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package org.glassfish.jersey.server;
import java.util.List;
import java.util.function.Function;
import java.util.function.Predicate;
import java.util.stream.Collectors;
import java.util.stream.Stream;
import org.glassfish.jersey.internal.BootstrapBag;
import org.glassfish.jersey.internal.BootstrapConfigurator;
import org.glassfish.jersey.internal.inject.Binding;
import org.glassfish.jersey.internal.inject.Bindings;
import org.glassfish.jersey.internal.inject.InjectionManager;
import org.glassfish.jersey.model.ContractProvider;
import org.glassfish.jersey.model.internal.ComponentBag;
import org.glassfish.jersey.server.model.ModelProcessor;
import org.glassfish.jersey.server.wadl.processor.OptionsMethodProcessor;
/**
* Configurator which initializes and register {@link ModelProcessor} instances into {@link BootstrapBag}.
*
* @author Petr Bouda (petr.bouda at oracle.com)
*/
class ModelProcessorConfigurator implements BootstrapConfigurator {
private static final Function<Object, ModelProcessor> CAST_TO_MODEL_PROCESSOR = ModelProcessor.class::cast;
private static final Predicate<Binding> BINDING_MODEL_PROCESSOR_ONLY =
binding -> binding.getContracts().contains(ModelProcessor.class);
private static final Predicate<ContractProvider> CONTRACT_PROVIDER_MODEL_PROCESSOR_ONLY =
provider -> provider.getContracts().contains(ModelProcessor.class);
@Override
public void init(InjectionManager injectionManager, BootstrapBag bootstrapBag) {
ServerBootstrapBag serverBag = (ServerBootstrapBag) bootstrapBag;
ResourceConfig runtimeConfig = serverBag.getRuntimeConfig();
ComponentBag componentBag = runtimeConfig.getComponentBag();
OptionsMethodProcessor optionsMethodProcessor = new OptionsMethodProcessor();
injectionManager.register(Bindings.service(optionsMethodProcessor).to(ModelProcessor.class));
// Get all model processors, registered as an instance or class
List<ModelProcessor> modelProcessors =
Stream.concat(
componentBag.getClasses(CONTRACT_PROVIDER_MODEL_PROCESSOR_ONLY).stream()
.map(injectionManager::createAndInitialize),
componentBag.getInstances(CONTRACT_PROVIDER_MODEL_PROCESSOR_ONLY).stream())
.map(CAST_TO_MODEL_PROCESSOR)
.collect(Collectors.toList());
modelProcessors.add(optionsMethodProcessor);
// model processors registered using binders
List<ModelProcessor> modelProcessorsFromBinders = ComponentBag
.getFromBinders(injectionManager, componentBag, CAST_TO_MODEL_PROCESSOR, BINDING_MODEL_PROCESSOR_ONLY);
modelProcessors.addAll(modelProcessorsFromBinders);
serverBag.setModelProcessors(modelProcessors);
}
}