de.viadee.bpm.camunda.externaltask.retry.aspect.service.PropertyService Maven / Gradle / Ivy

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This tool helps to control the retry-behaviour in external-task-handlers based on the official java-client provided by Camunda BPM

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/*
 * BSD 3-Clause License
 *
 * Copyright (c) 2021, viadee IT-Unternehmensberatung AG
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its
 *    contributors may be used to endorse or promote products derived from
 *    this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package de.viadee.bpm.camunda.externaltask.retry.aspect.service;

import de.viadee.bpm.camunda.externaltask.retry.aspect.config.ExternalTaskRetryAspectProperties;
import de.viadee.bpm.camunda.externaltask.retry.aspect.model.RetryBehaviour;
import de.viadee.bpm.camunda.externaltask.retry.aspect.model.RetryConfigValues;
import org.camunda.bpm.client.task.ExternalTask;


public final class PropertyService {

    private final RetryConfigValues valueVault;

    public PropertyService(final ExternalTaskRetryAspectProperties properties) {
        this.valueVault = new RetryConfigValues(properties);
    }


    public int remainingRetries(final ExternalTask externalTask) {
        RetryBehaviour retryBehaviour = new RetryBehaviour(externalTask, this.valueVault);
        return this.remainingRetries(retryBehaviour);
    }


    public int remainingRetries(final RetryBehaviour retryBehaviour) {
        if (retryBehaviour.hasRetries()) {
            return retryBehaviour.nextRetries();
        } else {
            return retryBehaviour.determineRetriesFromConfig();
        }
    }

    public long nextRetryInterval(final ExternalTask externalTask) {
        RetryBehaviour retryBehaviour = new RetryBehaviour(externalTask, this.valueVault);
        final int remainingRetries = this.remainingRetries(retryBehaviour);
        return retryBehaviour.nextRetryInterval(remainingRetries);
    }

}