Package com.firefly.core.support.xml

Examples of com.firefly.core.support.xml.XmlGenericBeanDefinition

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  @Override
  public Object parse(Element ele, Dom dom) {
    // 获取基本属性
    String id = ele.getAttribute(ID_ATTRIBUTE);
    String className = ele.getAttribute(CLASS_ATTRIBUTE);
    XmlBeanDefinition xmlBeanDefinition = new XmlGenericBeanDefinition();
    xmlBeanDefinition.setId(id);
    xmlBeanDefinition.setClassName(className);

    // 实例化对象
    Class<?> clazz = null;
    Object obj = null;
    log.info("classes [{}]", className);
    try {
      clazz = XmlBeanReader.class.getClassLoader().loadClass(className);
      obj = clazz.newInstance();
    } catch (ClassNotFoundException e) {
      throw new RuntimeException(e);
    } catch (InstantiationException e) {
      throw new RuntimeException(e);
    } catch (IllegalAccessException e) {
      throw new RuntimeException(e);
    }
    xmlBeanDefinition.setObject(obj);

    // 取得接口名称
    String[] names = ReflectUtils.getInterfaceNames(clazz);
    xmlBeanDefinition.setInterfaceNames(names);
    log.debug("class [{}] names size [{}]", className, names.length);

    // 获取所有property
    List<Element> properties = dom.elements(ele, PROPERTY_ELEMENT);

    // 迭代property列表
    if (properties != null) {
      for (Element property : properties) {
        String name = property.getAttribute(NAME_ATTRIBUTE);

        boolean hasValueAttribute = property
            .hasAttribute(VALUE_ATTRIBUTE);
        boolean hasRefAttribute = property.hasAttribute(REF_ATTRIBUTE);

        // 只能有一个子元素: ref, value, list, etc.
        NodeList nl = property.getChildNodes();
        Element subElement = null;
        for (int i = 0; i < nl.getLength(); ++i) {
          Node node = nl.item(i);
          if (node instanceof Element) {
            if (subElement != null) {
              error(name
                  + " must not contain more than one sub-element");
            } else {
              subElement = (Element) node;
            }
          }
        }

        if (hasValueAttribute
            && hasRefAttribute
            || ((hasValueAttribute || hasRefAttribute) && subElement != null)) {
          error(name
              + " is only allowed to contain either 'ref' attribute OR 'value' attribute OR sub-element");
        }

        if (hasValueAttribute) {
          // 普通赋值
          String value = property.getAttribute(VALUE_ATTRIBUTE);
          if (!StringUtils.hasText(value)) {
            error(name + " contains empty 'value' attribute");
          }
          xmlBeanDefinition.getProperties().put(name,
              new ManagedValue(value));
        } else if (hasRefAttribute) {
          // 依赖其他bean
          String ref = property.getAttribute(REF_ATTRIBUTE);
          if (!StringUtils.hasText(ref)) {
            error(name + " contains empty 'ref' attribute");
          }
          xmlBeanDefinition.getProperties().put(name,
              new ManagedRef(ref));
        } else if (subElement != null) {
          // 处理子元素
          Object subEle = XmlNodeStateMachine.stateProcessor(subElement, dom);
          xmlBeanDefinition.getProperties().put(name, subEle);
        } else {
          error(name + " must specify a ref or value");
          return null;
        }
      }
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  @Override
  public Object parse(Element ele, Dom dom) {
    // gets basic attribute
    String id = ele.getAttribute(ID_ATTRIBUTE);
    String className = ele.getAttribute(CLASS_ATTRIBUTE);
    XmlBeanDefinition xmlBeanDefinition = new XmlGenericBeanDefinition();
    xmlBeanDefinition.setId(id);
    xmlBeanDefinition.setClassName(className);

   
    Class<?> clazz = null;
    log.info("classes [{}]", className);
    try {
      clazz = XmlBeanReader.class.getClassLoader().loadClass(className);
    } catch (Throwable e) {
      error("loads class \"" + className + "\" error");
    }
   
    // gets bean's constructor
    List<Element> constructors = dom.elements(ele, CONTRUCTOR_ELEMENT);
    if(constructors != null && constructors.size() > 0) {
      Element constructorElement = constructors.get(0);
      List<Element> arguments = dom.elements(constructorElement, ARGUMENT_ELEMENT);
      if(arguments != null && arguments.size() >= 1) {
        List<Class<?>> argsClass = new ArrayList<Class<?>>();
        for(Element argument : arguments) {
          XmlManagedNode xmlManagedNode = parseXmlManagedNode(argument, dom);
          if(xmlManagedNode != null) {
            xmlBeanDefinition.getContructorParameters().add(xmlManagedNode);
          }
          String initArgsType = argument.getAttribute(TYPE_ATTRIBUTE);
          if(VerifyUtils.isNotEmpty(initArgsType)) {
            try {
              argsClass.add(XmlBeanReader.class.getClassLoader().loadClass(initArgsType));
            } catch (ClassNotFoundException e) {
              error("The '" + initArgsType + "' not found");
            }
          } else {
            error("The '" + className + "' constructor argument node MUST has type attribute");
          }
        }
        try {
          xmlBeanDefinition.setConstructor(clazz.getConstructor(argsClass.toArray(new Class<?>[0])));
        } catch (Throwable e) {
          error("The '" + className + "' gets constructor error");
        }
      } else {
        error("The '" + className + "' constructor node MUST be more than one argument node!");
      }
    } else {
      try {
        xmlBeanDefinition.setConstructor(clazz.getConstructor(new Class<?>[0]));
      } catch (Throwable e) {
        error("The '" + className + "' gets constructor error");
      }
    }

    // gets all interface name
    String[] names = ReflectUtils.getInterfaceNames(clazz);
    xmlBeanDefinition.setInterfaceNames(names);
    log.debug("class [{}] names size [{}]", className, names.length);

    // gets all properties
    List<Element> properties = dom.elements(ele, PROPERTY_ELEMENT);
    if (properties != null) {
      for (Element property : properties) {
        String name = property.getAttribute(NAME_ATTRIBUTE);
        XmlManagedNode xmlManagedNode = parseXmlManagedNode(property, dom);
        if(xmlManagedNode != null && VerifyUtils.isNotEmpty(name)) {
          xmlBeanDefinition.getProperties().put(name, xmlManagedNode);
        }
      }
    }
    return xmlBeanDefinition;
  }
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Related Classes of com.firefly.core.support.xml.XmlGenericBeanDefinition

  • com.firefly.core.support.xml.parse.BeanNodeParser
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