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Ease the creation of Telegram, Google Chat, Discord chatbots with the Micronaut Framework
/*
* Copyright 2017-2022 original authors
*
* 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
*
* https://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.micronaut.chatbots.core;
import io.micronaut.core.annotation.NonNull;
import io.micronaut.core.annotation.Nullable;
import jakarta.inject.Singleton;
import jakarta.validation.constraints.NotNull;
import java.util.List;
import java.util.Optional;
/**
* Iterates through every {@link Handler} in odered and dispatch the message to the first which can handle the request.
* @param The Bot configuration
* @param input type.
* @param output type.
* @author Sergio del Amo
* @since 1.0.0
*/
@Singleton
public class DefaultDispatcher implements Dispatcher {
private final List> handlers;
public DefaultDispatcher(List> handlers) {
this.handlers = handlers;
}
@Override
@NonNull
public Optional dispatch(@Nullable B bot,
@NonNull @NotNull I input) {
return handlers.stream()
.filter(handler -> handler.canHandle(bot, input))
.findFirst()
.flatMap(bioHandler -> bioHandler.handle(bot, input));
}
}