Examples with LifeCycle org.nutz.lang.util.LifeCycle used on opensource projects

Example 1 with LifeCycle

use of org.nutz.lang.util.LifeCycle in project nutz by nutzam.

the class NutIoc method get.

public <T> T get(Class<T> type, String name, IocContext context) throws IocException {
    if (log.isDebugEnabled())
        log.debugf("Get '%s'<%s>", name, type == null ? "" : type);
    try {
        if (this.mirrors instanceof LifeCycle)
            ((LifeCycle) this.mirrors).init();
    } catch (Exception e) {
        throw new IocException("_mirror_factory_init", e, "Mirror Factory init fail");
    }
    // 创建对象创建时
    IocMaking ing = makeIocMaking(context, name);
    IocContext cntx = ing.getContext();
    // 从上下文缓存中获取对象代理
    ObjectProxy op = cntx.fetch(name);
    // 如果未发现对象
    if (null == op) {
        // 线程同步
        synchronized (lock_get) {
            // 再次读取
            op = cntx.fetch(name);
            // 如果未发现对象
            if (null == op) {
                try {
                    if (log.isDebugEnabled())
                        log.debug("\t >> Load definition name=" + name);
                    // 读取对象定义
                    IocObject iobj = loader.load(createLoading(), name);
                    if (null == iobj) {
                        for (String iocBeanName : loader.getName()) {
                            // 感觉没必要..没有就没有呗
                            if (3 > LevenshteinDistance.computeLevenshteinDistance(name.toLowerCase(), iocBeanName.toLowerCase())) {
                                throw new IocException(name, "Undefined object '%s' but found similar name '%s'", name, iocBeanName);
                            }
                        }
                        throw new IocException(name, "Undefined object '%s'", name);
                    }
                    // 修正对象类型
                    if (null == iobj.getType())
                        if (null == type && Strings.isBlank(iobj.getFactory()))
                            throw new IocException(name, "NULL TYPE object '%s'", name);
                        else
                            iobj.setType(type);
                    // 检查对象级别
                    if (Strings.isBlank(iobj.getScope()))
                        iobj.setScope(defaultScope);
                    // 根据对象定义，创建对象，maker 会自动的缓存对象到 context 中
                    if (log.isDebugEnabled())
                        log.debugf("\t >> Make...'%s'<%s>", name, type == null ? "" : type);
                    op = maker.make(ing, iobj);
                }// 处理异常
                 catch (IocException e) {
                    ((IocException) e).addBeanNames(name);
                    throw e;
                } catch (Throwable e) {
                    throw new IocException(name, e, "For object [%s] - type:[%s]", name, type == null ? "" : type);
                }
            }
        }
    }
    synchronized (lock_get) {
        T re = op.get(type, ing);
        if (!name.startsWith("$") && re instanceof IocLoader) {
            loader.addLoader((IocLoader) re);
        }
        return re;
    }
}