com.opencredo.concursus.mapping.commands.methods.dispatching.CommandMethodDispatcher Maven / Gradle / Ivy

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package com.opencredo.concursus.mapping.commands.methods.dispatching;

import com.opencredo.concursus.domain.commands.Command;
import com.opencredo.concursus.domain.commands.dispatching.CommandProcessor;
import com.opencredo.concursus.domain.commands.dispatching.CommandSubscribable;
import com.opencredo.concursus.mapping.commands.methods.reflection.CommandInterfaceInfo;
import com.opencredo.concursus.mapping.commands.methods.reflection.MultiTypeCommandDispatcher;

import java.util.Optional;
import java.util.concurrent.ExecutionException;

import static com.google.common.base.Preconditions.checkNotNull;

public final class CommandMethodDispatcher implements CommandProcessor {

    public static  CommandMethodDispatcher toHandler(Class handlerInterface, H target) {
        checkNotNull(handlerInterface, "handlerInterface must not be null");
        checkNotNull(target, "target must not be null");

        return new CommandMethodDispatcher(target, CommandInterfaceInfo.forInterface(handlerInterface).getCommandDispatcher());
    }

    private final Object target;
    private final MultiTypeCommandDispatcher commandDispatcher;

    private CommandMethodDispatcher(Object target, MultiTypeCommandDispatcher commandDispatcher) {
        this.target = target;
        this.commandDispatcher = commandDispatcher;
    }

    @Override
    public Optional