org.apache.ibatis.io.Resources#classForName

Source File: XMLMapperBuilder.java From Shop-for-JavaWeb with MIT License

6 votes

private void bindMapperForNamespace() {
	String namespace = builderAssistant.getCurrentNamespace();
	if (namespace != null) {
		Class<?> boundType = null;
		try {
			boundType = Resources.classForName(namespace);
		} catch (ClassNotFoundException e) {
			// ignore, bound type is not required
		}
		if (boundType != null) {
			if (!configuration.hasMapper(boundType)) {
				// Spring may not know the real resource name so we set a
				// flag
				// to prevent loading again this resource from the mapper
				// interface
				// look at MapperAnnotationBuilder#loadXmlResource
				configuration.addLoadedResource("namespace:" + namespace);
				configuration.addMapper(boundType);
			}
		}
	}
}

Source File: UnpooledDataSource.java From mybaties with Apache License 2.0

6 votes

private synchronized void initializeDriver() throws SQLException {
 //这里便是大家熟悉的初学JDBC时的那几句话了 Class.forName newInstance()
  if (!registeredDrivers.containsKey(driver)) {
    Class<?> driverType;
    try {
      if (driverClassLoader != null) {
        driverType = Class.forName(driver, true, driverClassLoader);
      } else {
        driverType = Resources.classForName(driver);
      }
      // DriverManager requires the driver to be loaded via the system ClassLoader.
      // http://www.kfu.com/~nsayer/Java/dyn-jdbc.html
      Driver driverInstance = (Driver)driverType.newInstance();
      DriverManager.registerDriver(new DriverProxy(driverInstance));
      registeredDrivers.put(driver, driverInstance);
    } catch (Exception e) {
      throw new SQLException("Error setting driver on UnpooledDataSource. Cause: " + e);
    }
  }
}

Source File: OgnlClassResolver.java From mybaties with Apache License 2.0

6 votes

@Override
public Class classForName(String className, Map context) throws ClassNotFoundException {
  Class<?> result = null;
  if ((result = classes.get(className)) == null) {
    try {
      result = Resources.classForName(className);
    } catch (ClassNotFoundException e1) {
      if (className.indexOf('.') == -1) {
        result = Resources.classForName("java.lang." + className);
        classes.put("java.lang." + className, result);
      }
    }
    classes.put(className, result);
  }
  return result;
}

Source File: XMLMapperBuilder.java From mybaties with Apache License 2.0

6 votes

private void bindMapperForNamespace() {
  String namespace = builderAssistant.getCurrentNamespace();
  if (namespace != null) {
    Class<?> boundType = null;
    try {
      boundType = Resources.classForName(namespace);
    } catch (ClassNotFoundException e) {
      //ignore, bound type is not required
    }
    if (boundType != null) {
      if (!configuration.hasMapper(boundType)) {
        // Spring may not know the real resource name so we set a flag
        // to prevent loading again this resource from the mapper interface
        // look at MapperAnnotationBuilder#loadXmlResource
        configuration.addLoadedResource("namespace:" + namespace);
        configuration.addMapper(boundType);
      }
    }
  }
}

Source File: XMLMapperBuilder.java From mybatis with Apache License 2.0

6 votes

private void bindMapperForNamespace() {
  String namespace = builderAssistant.getCurrentNamespace();
  if (namespace != null) {
    Class<?> boundType = null;
    try {
      boundType = Resources.classForName(namespace);
    } catch (ClassNotFoundException e) {
      //ignore, bound type is not required
    }
    if (boundType != null) {
      if (!configuration.hasMapper(boundType)) {
        // Spring may not know the real resource name so we set a flag
        // to prevent loading again this resource from the mapper interface
        // look at MapperAnnotationBuilder#loadXmlResource
        configuration.addLoadedResource("namespace:" + namespace);
        configuration.addMapper(boundType);
      }
    }
  }
}

Source File: OgnlClassResolver.java From mybatis with Apache License 2.0

6 votes

@Override
public Class classForName(String className, Map context) throws ClassNotFoundException {
  Class<?> result = null;
  if ((result = classes.get(className)) == null) {
    try {
      result = Resources.classForName(className);
    } catch (ClassNotFoundException e1) {
      if (className.indexOf('.') == -1) {
        result = Resources.classForName("java.lang." + className);
        classes.put("java.lang." + className, result);
      }
    }
    classes.put(className, result);
  }
  return result;
}

Source File: UnpooledDataSource.java From mybatis with Apache License 2.0

6 votes

private synchronized void initializeDriver() throws SQLException {
 //这里便是大家熟悉的初学JDBC时的那几句话了 Class.forName newInstance()
  if (!registeredDrivers.containsKey(driver)) {
    Class<?> driverType;
    try {
      if (driverClassLoader != null) {
        driverType = Class.forName(driver, true, driverClassLoader);
      } else {
        driverType = Resources.classForName(driver);
      }
      // DriverManager requires the driver to be loaded via the system ClassLoader.
      // http://www.kfu.com/~nsayer/Java/dyn-jdbc.html
      Driver driverInstance = (Driver)driverType.newInstance();
      DriverManager.registerDriver(new DriverProxy(driverInstance));
      registeredDrivers.put(driver, driverInstance);
    } catch (Exception e) {
      throw new SQLException("Error setting driver on UnpooledDataSource. Cause: " + e);
    }
  }
}

Source File: XMLConfigBuilder.java From QuickProject with Apache License 2.0

6 votes

private void typeAliasesElement(XNode parent) {
  if (parent != null) {
    for (XNode child : parent.getChildren()) {
      if ("package".equals(child.getName())) {
        String typeAliasPackage = child.getStringAttribute("name");
        configuration.getTypeAliasRegistry().registerAliases(typeAliasPackage);
      } else {
        String alias = child.getStringAttribute("alias");
        String type = child.getStringAttribute("type");
        try {
          Class<?> clazz = Resources.classForName(type);
          if (alias == null) {
            typeAliasRegistry.registerAlias(clazz);
          } else {
            typeAliasRegistry.registerAlias(alias, clazz);
          }
        } catch (ClassNotFoundException e) {
          throw new BuilderException("Error registering typeAlias for '" + alias + "'. Cause: " + e, e);
        }
      }
    }
  }
}

Source File: CglibProxyFactory.java From mybaties with Apache License 2.0

5 votes

public CglibProxyFactory() {
  try {
    //先检查是否有Cglib
    Resources.classForName("net.sf.cglib.proxy.Enhancer");
  } catch (Throwable e) {
    throw new IllegalStateException("Cannot enable lazy loading because CGLIB is not available. Add CGLIB to your classpath.", e);
  }
}

Source File: JavassistProxyFactory.java From mybatis with Apache License 2.0

5 votes

public JavassistProxyFactory() {
  try {
    //先检查是否有javassist
    Resources.classForName("javassist.util.proxy.ProxyFactory");
  } catch (Throwable e) {
    throw new IllegalStateException("Cannot enable lazy loading because Javassist is not available. Add Javassist to your classpath.", e);
  }
}

Source File: ResultSetWrapper.java From mybatis with Apache License 2.0

5 votes

private Class<?> resolveClass(String className) {
  try {
    return Resources.classForName(className);
  } catch (ClassNotFoundException e) {
    return null;
  }
}

Source File: TypeAliasRegistry.java From mybatis with Apache License 2.0

5 votes

@SuppressWarnings("unchecked")
 // throws class cast exception as well if types cannot be assigned
//解析类型别名
 public <T> Class<T> resolveAlias(String string) {
   try {
     if (string == null) {
       return null;
     }
     // issue #748
     //先转成小写再解析
     //这里转个小写也有bug？见748号bug(在google code上)
     //https://code.google.com/p/mybatis/issues
     //比如如果本地语言是Turkish，那i转成大写就不是I了，而是另外一个字符（İ）。这样土耳其的机器就用不了mybatis了！这是一个很大的bug，但是基本上每个人都会犯......
     String key = string.toLowerCase(Locale.ENGLISH);
     Class<T> value;
     //原理就很简单了，从HashMap里找对应的键值，找到则返回类型别名对应的Class
     if (TYPE_ALIASES.containsKey(key)) {
       value = (Class<T>) TYPE_ALIASES.get(key);
     } else {
       //找不到，再试着将String直接转成Class(这样怪不得我们也可以直接用java.lang.Integer的方式定义，也可以就int这么定义)
       value = (Class<T>) Resources.classForName(string);
     }
     return value;
   } catch (ClassNotFoundException e) {
     throw new TypeException("Could not resolve type alias '" + string + "'.  Cause: " + e, e);
   }
 }

Source File: TypeAliasRegistry.java From mybaties with Apache License 2.0

5 votes

@SuppressWarnings("unchecked")
 // throws class cast exception as well if types cannot be assigned
//解析类型别名
 public <T> Class<T> resolveAlias(String string) {
   try {
     if (string == null) {
       return null;
     }
     // issue #748
     //先转成小写再解析
     //这里转个小写也有bug？见748号bug(在google code上)
     //https://code.google.com/p/mybatis/issues
     //比如如果本地语言是Turkish，那i转成大写就不是I了，而是另外一个字符（İ）。这样土耳其的机器就用不了mybatis了！这是一个很大的bug，但是基本上每个人都会犯......
     String key = string.toLowerCase(Locale.ENGLISH);
     Class<T> value;
     //原理就很简单了，从HashMap里找对应的键值，找到则返回类型别名对应的Class
     if (TYPE_ALIASES.containsKey(key)) {
       value = (Class<T>) TYPE_ALIASES.get(key);
     } else {
       //找不到，再试着将String直接转成Class(这样怪不得我们也可以直接用java.lang.Integer的方式定义，也可以就int这么定义)
       value = (Class<T>) Resources.classForName(string);
     }
     return value;
   } catch (ClassNotFoundException e) {
     throw new TypeException("Could not resolve type alias '" + string + "'.  Cause: " + e, e);
   }
 }

Source File: CglibProxyFactory.java From mybatis with Apache License 2.0

5 votes

public CglibProxyFactory() {
  try {
    //先检查是否有Cglib
    Resources.classForName("net.sf.cglib.proxy.Enhancer");
  } catch (Throwable e) {
    throw new IllegalStateException("Cannot enable lazy loading because CGLIB is not available. Add CGLIB to your classpath.", e);
  }
}

Source File: JavassistProxyFactory.java From mybaties with Apache License 2.0

5 votes

public JavassistProxyFactory() {
  try {
    //先检查是否有javassist
    Resources.classForName("javassist.util.proxy.ProxyFactory");
  } catch (Throwable e) {
    throw new IllegalStateException("Cannot enable lazy loading because Javassist is not available. Add Javassist to your classpath.", e);
  }
}

Source File: ResultSetWrapper.java From mybaties with Apache License 2.0

5 votes

private Class<?> resolveClass(String className) {
  try {
    return Resources.classForName(className);
  } catch (ClassNotFoundException e) {
    return null;
  }
}

Source File: XMLConfigBuilder.java From mybaties with Apache License 2.0

5 votes

private void typeAliasesElement(XNode parent) {
  if (parent != null) {
    for (XNode child : parent.getChildren()) {
      if ("package".equals(child.getName())) {
        //如果是package
        String typeAliasPackage = child.getStringAttribute("name");
        //（一）调用TypeAliasRegistry.registerAliases，去包下找所有类,然后注册别名(有@Alias注解则用，没有则取类的simpleName)
        configuration.getTypeAliasRegistry().registerAliases(typeAliasPackage);
      } else {
        //如果是typeAlias
        String alias = child.getStringAttribute("alias");
        String type = child.getStringAttribute("type");
        try {
          Class<?> clazz = Resources.classForName(type);
          //根据Class名字来注册类型别名
          //（二）调用TypeAliasRegistry.registerAlias
          if (alias == null) {
            //alias可以省略
            typeAliasRegistry.registerAlias(clazz);
          } else {
            typeAliasRegistry.registerAlias(alias, clazz);
          }
        } catch (ClassNotFoundException e) {
          throw new BuilderException("Error registering typeAlias for '" + alias + "'. Cause: " + e, e);
        }
      }
    }
  }
}

Source File: MapperScanApplication.java From mumu with Apache License 2.0

5 votes

/**
 * 加载别名
 * @param configuration
 */
private void handleTypeAlias(Configuration configuration, XNode root) {
	log.info("load alias message...........................");
	TypeAliasRegistry typeAliasRegistry = configuration.getTypeAliasRegistry();
	XNode parent = root.evalNode("typeAliases");
	if(parent!=null){
		for (XNode child : parent.getChildren()) {
			if ("package".equals(child.getName())) {
				String typeAliasPackage = child.getStringAttribute("name");
				configuration.getTypeAliasRegistry().registerAliases(typeAliasPackage);
				log.info("package:"+typeAliasPackage);
			} else {
				String alias = child.getStringAttribute("alias");
				String type = child.getStringAttribute("type");
				try {
					Class<?> clazz = Resources.classForName(type);
					if (alias == null) {
						typeAliasRegistry.registerAlias(clazz);
					} else {
						typeAliasRegistry.registerAlias(alias, clazz);
					}
					log.info("alias:"+alias+"   type:"+clazz);
				} catch (ClassNotFoundException e) {
					throw new BuilderException("Error registering typeAlias for '" + alias + "'. Cause: " + e, e);
				}
			}
		}
	}
}

Source File: SerializedCache.java From mybatis with Apache License 2.0

4 votes

@Override
protected Class<?> resolveClass(ObjectStreamClass desc) throws IOException, ClassNotFoundException {
  return Resources.classForName(desc.getName());
}

Source File: SerializedCache.java From mybaties with Apache License 2.0

4 votes

@Override
protected Class<?> resolveClass(ObjectStreamClass desc) throws IOException, ClassNotFoundException {
  return Resources.classForName(desc.getName());
}

Java Code Examples for org.apache.ibatis.io.Resources#classForName()