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package org.glassfish.jersey.client.rx.guava;
import java.util.concurrent.ExecutorService;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.SyncInvoker;
import javax.ws.rs.core.GenericType;
import org.glassfish.jersey.client.AbstractRxInvoker;
import org.glassfish.jersey.internal.util.collection.LazyValue;
import org.glassfish.jersey.internal.util.collection.Value;
import org.glassfish.jersey.internal.util.collection.Values;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.ListeningExecutorService;
import com.google.common.util.concurrent.MoreExecutors;
/**
* Implementation of Reactive Invoker for {@code ListenableFuture}.
*
* @author Michal Gajdos
* @author Pavel Bucek (pavel.bucek at oracle.com)
* @since 2.13
*/
final class JerseyRxListenableFutureInvoker extends AbstractRxInvoker<ListenableFuture> implements RxListenableFutureInvoker {
private static final LazyValue<ListeningExecutorService> DEFAULT_EXECUTOR_SERVICE =
Values.lazy(new Value<ListeningExecutorService>() {
@Override
public ListeningExecutorService get() {
return MoreExecutors.newDirectExecutorService();
}
});
private final ListeningExecutorService service;
JerseyRxListenableFutureInvoker(final SyncInvoker syncInvoker, final ExecutorService executor) {
super(syncInvoker, executor);
if (executor == null) {
// TODO: use JAX-RS client scheduler
// TODO: https://java.net/jira/browse/JAX_RS_SPEC-523
service = DEFAULT_EXECUTOR_SERVICE.get();
} else {
service = MoreExecutors.listeningDecorator(executor);
}
}
@Override
public <T> ListenableFuture<T> method(final String name, final Entity<?> entity, final Class<T> responseType) {
return service.submit(() -> getSyncInvoker().method(name, entity, responseType));
}
@Override
public <T> ListenableFuture<T> method(final String name, final Entity<?> entity, final GenericType<T> responseType) {
return service.submit(() -> getSyncInvoker().method(name, entity, responseType));
}
}