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Default Java client library for interfacing with Flux Capacitor.
/*
* Copyright (c) 2016-2018 Flux Capacitor.
*
* 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.
*/
package io.fluxcapacitor.javaclient.publishing;
import io.fluxcapacitor.common.Registration;
import io.fluxcapacitor.common.api.SerializedMessage;
import io.fluxcapacitor.common.handling.HandlerConfiguration;
import io.fluxcapacitor.javaclient.common.Message;
import io.fluxcapacitor.javaclient.common.serialization.DeserializingMessage;
import io.fluxcapacitor.javaclient.common.serialization.MessageSerializer;
import io.fluxcapacitor.javaclient.publishing.client.GatewayClient;
import io.fluxcapacitor.javaclient.tracking.handling.HandlerRegistry;
import lombok.AllArgsConstructor;
import lombok.SneakyThrows;
import lombok.experimental.Delegate;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionException;
import static java.lang.String.format;
@AllArgsConstructor
public class DefaultGenericGateway implements RequestGateway {
private final GatewayClient gatewayClient;
private final RequestHandler requestHandler;
private final MessageSerializer serializer;
@Delegate
private final HandlerRegistry localHandlerRegistry;
@Override
@SneakyThrows
public void sendAndForget(Message message) {
SerializedMessage serializedMessage = serializer.serialize(message);
Optional> localResult
= localHandlerRegistry.handle(message.getPayload(), serializedMessage);
if (!localResult.isPresent()) {
try {
gatewayClient.send(serializedMessage);
} catch (Exception e) {
throw new GatewayException(format("Failed to send and forget %s", message.getPayload().toString()), e);
}
} else if (localResult.get().isCompletedExceptionally()) {
try {
localResult.get().getNow(null);
} catch (CompletionException e) {
throw e.getCause();
}
}
}
@Override
public CompletableFuture sendForMessage(Message message) {
SerializedMessage serializedMessage = serializer.serialize(message);
Optional> localResult
= localHandlerRegistry.handle(message.getPayload(), serializedMessage);
if (localResult.isPresent()) {
return localResult.get();
} else {
try {
return requestHandler.sendRequest(serializedMessage, gatewayClient::send);
} catch (Exception e) {
throw new GatewayException(format("Failed to send %s", message.getPayload().toString()), e);
}
}
}
}