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package org.glassfish.jersey.server;
import java.util.Collections;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.glassfish.jersey.internal.BootstrapBag;
import org.glassfish.jersey.internal.BootstrapConfigurator;
import org.glassfish.jersey.internal.ServiceFinder;
import org.glassfish.jersey.internal.inject.AbstractBinder;
import org.glassfish.jersey.internal.inject.InjectionManager;
import org.glassfish.jersey.server.internal.LocalizationMessages;
import org.glassfish.jersey.server.spi.ComponentProvider;
import org.glassfish.jersey.server.spi.ExternalRequestContext;
import org.glassfish.jersey.server.spi.ExternalRequestScope;
/**
* Configurator which initializes and register {@link ExternalRequestScope} instance into {@link InjectionManager}.
*
* @author Petr Bouda (petr.bouda at oracle.com)
*/
class ExternalRequestScopeConfigurator implements BootstrapConfigurator {
private static final Logger LOGGER = Logger.getLogger(ExternalRequestScopeConfigurator.class.getName());
@Override
public void init(InjectionManager injectionManager, BootstrapBag bootstrapBag) {
ServerBootstrapBag serverBag = (ServerBootstrapBag) bootstrapBag;
Class<ExternalRequestScope>[] extScopes = ServiceFinder.find(ExternalRequestScope.class, true).toClassArray();
boolean extScopeBound = false;
if (extScopes.length == 1) {
for (ComponentProvider p : serverBag.getComponentProviders().get()) {
if (p.bind(extScopes[0], Collections.singleton(ExternalRequestScope.class))) {
extScopeBound = true;
break;
}
}
} else if (extScopes.length > 1) {
if (LOGGER.isLoggable(Level.WARNING)) {
StringBuilder scopeList = new StringBuilder("\n");
for (Class<ExternalRequestScope> ers : extScopes) {
scopeList.append(" ").append(ers.getTypeParameters()[0]).append('\n');
}
LOGGER.warning(LocalizationMessages.WARNING_TOO_MANY_EXTERNAL_REQ_SCOPES(scopeList.toString()));
}
}
if (!extScopeBound) {
injectionManager.register(new NoopExternalRequestScopeBinder());
}
}
private static class NoopExternalRequestScopeBinder extends AbstractBinder {
@Override
protected void configure() {
bind(NOOP_EXTERNAL_REQ_SCOPE).to(ExternalRequestScope.class);
}
}
private static final ExternalRequestScope<Object> NOOP_EXTERNAL_REQ_SCOPE = new ExternalRequestScope<Object>() {
@Override
public ExternalRequestContext<Object> open(InjectionManager injectionManager) {
return null;
}
@Override
public void close() {
}
@Override
public void suspend(ExternalRequestContext<Object> o, InjectionManager injectionManager) {
}
@Override
public void resume(ExternalRequestContext<Object> o, InjectionManager injectionManager) {
}
};
}