com.codebullets.sagalib.description.DescriptionSaga.java Source code

Introduction

Here is the source code for com.codebullets.sagalib.description.DescriptionSaga.java

Source

/*
 * Copyright 2016 Stefan Domnanovits
 *
 *  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 com.codebullets.sagalib.description;

import com.codebullets.sagalib.AbstractSaga;
import com.codebullets.sagalib.KeyReader;
import com.codebullets.sagalib.KeyReaders;
import com.codebullets.sagalib.describe.DescribesHandlers;
import com.codebullets.sagalib.describe.HandlerDescription;
import com.codebullets.sagalib.describe.HandlerDescriptions;
import com.google.common.collect.ImmutableSet;

import java.util.Collection;

public class DescriptionSaga extends AbstractSaga<DescriptionSagaState> implements DescribesHandlers {

    private void startSaga(final DescriptionStartingMessage startingMessage) {
        state().addInstanceKey(startingMessage.key());
    }

    private void finishSaga(final DescriptionFinishMessage finishMessage) {
        setFinished();
    }

    @Override
    public void createNewState() {
        setState(new DescriptionSagaState());
    }

    @Override
    public Collection<KeyReader> keyReaders() {
        return ImmutableSet
                .of(KeyReaders.forMessage(DescriptionFinishMessage.class, DescriptionFinishMessage::key));
    }

    @Override
    public HandlerDescription describeHandlers() {
        return HandlerDescriptions.startedBy(DescriptionStartingMessage.class).usingMethod(this::startSaga)
                .handleMessage(DescriptionFinishMessage.class).usingMethod(this::finishSaga).finishDescription();
    }
}