DefaultTaskListener.java

package com.mossle.bpm.support;

import org.activiti.engine.delegate.DelegateTask;
import org.activiti.engine.delegate.TaskListener;
import org.activiti.engine.impl.persistence.entity.TaskEntity;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DefaultTaskListener implements TaskListener {
    private static Logger logger = LoggerFactory
            .getLogger(DefaultTaskListener.class);

    public void notify(DelegateTask delegateTask) {
        String eventName = delegateTask.getEventName();
        logger.debug("{}", this);
        logger.debug("{} : {}", eventName, delegateTask);

        if ("create".equals(eventName)) {
            try {
                this.onCreate(delegateTask);
            } catch (Exception ex) {
                logger.error(ex.getMessage(), ex);
            }
        }

        if ("assignment".equals(eventName)) {
            try {
                this.onAssignment(delegateTask);
            } catch (Exception ex) {
                logger.error(ex.getMessage(), ex);
            }
        }

        if ("complete".equals(eventName)) {
            try {
                this.onComplete(delegateTask);
            } catch (Exception ex) {
                logger.error(ex.getMessage(), ex);
            }
        }

        if ("delete".equals(eventName)) {
            try {
                this.onDelete(delegateTask);
            } catch (Exception ex) {
                logger.error(ex.getMessage(), ex);
            }
        }

        ((TaskEntity) delegateTask).setEventName(eventName);
    }

    public void onCreate(DelegateTask delegateTask) throws Exception {
    }

    public void onAssignment(DelegateTask delegateTask) throws Exception {
    }

    public void onComplete(DelegateTask delegateTask) throws Exception {
    }

    public void onDelete(DelegateTask delegateTask) throws Exception {
    }
}