cvs commit: xml-xmlbeans/v2/src/marshal/org/apache/xmlbeans/impl/marshal/util ReflectionUtils.java

[zi...@apache.org]

zieg        2004/03/09 16:02:26

  Added:       v2/src/marshal/org/apache/xmlbeans/impl/marshal/util
                        ReflectionUtils.java
  Log:
  forgot another file
  
  Revision  Changes    Path
  1.1                  xml-xmlbeans/v2/src/marshal/org/apache/xmlbeans/impl/marshal/util/ReflectionUtils.java
  
  Index: ReflectionUtils.java
  ===================================================================
  /*   Copyright 2004 The Apache Software Foundation
   *
   *   Licensed under the Apache License, Version 2.0 (the "License");
   *   you may not use this file except in compliance with the License.
   *   You may obtain a copy of the License at
   *
   *       http://www.apache.org/licenses/LICENSE-2.0
   *
   *   Unless required by applicable law or agreed to in writing, software
   *   distributed under the License is distributed on an "AS IS" BASIS,
   *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *   See the License for the specific language governing permissions and
   *  limitations under the License.
   */
  
  package org.apache.xmlbeans.impl.marshal.util;
  
  import org.apache.xmlbeans.XmlException;
  import org.apache.xmlbeans.impl.binding.bts.BindingProperty;
  import org.apache.xmlbeans.impl.binding.bts.MethodName;
  
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  import java.lang.reflect.Modifier;
  
  public final class ReflectionUtils
  {
  
      public static final Object[] EMPTY_OBJECT_ARRAY = new Object[]{};
  
      public static Object invokeMethod(Object target,
                                        Method method,
                                        Object[] params)
          throws XmlException
      {
          try {
              return method.invoke(target, params);
          }
          catch (IllegalAccessException e) {
              throw new XmlException(e);
          }
          catch (IllegalArgumentException e) {
              throw new XmlException(e);
          }
          catch (InvocationTargetException e) {
              throw new XmlException(e);
          }
      }
  
      /**
       * invoke method with no arguments
       *
       * @param target
       * @param method
       * @return
       * @throws XmlException
       */
      public static Object invokeMethod(Object target,
                                        Method method)
          throws XmlException
      {
          return invokeMethod(target, method, EMPTY_OBJECT_ARRAY);
      }
  
      public static Method getSetterMethod(BindingProperty binding_prop,
                                           Class beanClass)
          throws XmlException
      {
          if (!binding_prop.hasSetter()) return null;
  
          MethodName setterName = binding_prop.getSetterName();
          return getMethodOnClass(setterName, beanClass);
      }
  
      public static Method getIssetterMethod(BindingProperty binding_prop,
                                             Class clazz)
          throws XmlException
      {
          if (!binding_prop.hasIssetter())
              return null;
  
          Method isset_method =
              getMethodOnClass(binding_prop.getIssetterName(), clazz);
  
          if (!isset_method.getReturnType().equals(Boolean.TYPE)) {
              String msg = "invalid isset method: " + isset_method +
                  " -- return type must be boolean not " +
                  isset_method.getReturnType().getName();
              throw new XmlException(msg);
          }
  
          return isset_method;
      }
  
      public static Method getGetterMethod(BindingProperty binding_prop,
                                           Class beanClass)
          throws XmlException
      {
          MethodName getterName = binding_prop.getGetterName();
          return getMethodOnClass(getterName, beanClass);
      }
  
      public static Method getMethodOnClass(MethodName method_name,
                                            Class clazz)
          throws XmlException
      {
          try {
              return method_name.getMethodOn(clazz);
          }
          catch (NoSuchMethodException e) {
              throw new XmlException(e);
          }
          catch (SecurityException se) {
              throw new XmlException(se);
          }
          catch (ClassNotFoundException cnfe) {
              throw new XmlException(cnfe);
          }
      }
  
      public static boolean isClassFinal(Class javaClass)
      {
          final int modifiers = javaClass.getModifiers();
          return Modifier.isFinal(modifiers);
      }
  }
  
  
  

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