snaker-core/src/main/java/org/snaker/engine/cfg/Configuration.java
public SnakerEngine buildSnakerEngine() throws SnakerException {
		if(log.isInfoEnabled()) {
			log.info("SnakerEngine start......");
		}
		parser();
		/**
		 * 由服务上下文返回流程引擎
		 */
		SnakerEngine configEngine = ServiceContext.getEngine();
		if(configEngine == null) {
			throw new SnakerException("配置无法发现SnakerEngine的实现类");
		}
		if(log.isInfoEnabled()) {
			log.info("SnakerEngine be found:" + configEngine.getClass());
		}
		return configEngine.configure(this);
	}
public SnakerEngine buildSnakerEngine() throws SnakerException {
		if(log.isInfoEnabled()) {
			log.info("SnakerEngine start......");
		}
		parser();
		/**
		 * 由服务上下文返回流程引擎
		 */
		SnakerEngine configEngine = ServiceContext.getEngine();
		if(configEngine == null) {
			throw new SnakerException("配置无法发现SnakerEngine的实现类");
		}
		if(log.isInfoEnabled()) {
			log.info("SnakerEngine be found:" + configEngine.getClass());
		}
		return configEngine.configure(this);
	}
构造SnakerEngine对象，用于api集成
通过SpringHelper调用
@return SnakerEngine
@throws SnakerException