Java NoInitialContextException.setRootCause方法代码示例

import javax.naming.NoInitialContextException; //导入方法依赖的package包/类
/**
 * Builds {@link InitialContextFactory} from passed requested (
 * {@link String}) class name
 *
 * @param requestedFactory
 * @return {@link InitialContextFactory}
 * @throws NoInitialContextException
 */
private InitialContextFactory simulateBuilderLessNamingManager(String requestedFactory)
        throws NoInitialContextException {

    InitialContextFactory factory;

    Class<?> requestedClass;
    try {
        requestedClass = ClassUtils.initClassForName(requestedFactory);
        Object instance = ClassUtils.instantiate(requestedClass);
        factory = ObjectUtils.cast(instance, InitialContextFactory.class);
    } catch (IOException ex) {
        NoInitialContextException nex = new NoInitialContextException(COULD_NOT_FIND_ERROR);
        nex.setRootCause(ex);
        throw nex;
    }

    return factory;
}
 

import javax.naming.NoInitialContextException; //导入方法依赖的package包/类
/**
 * Test serialize NoInitialContextException: write a
 * NoInitialContextException object into a byte array, and read from it. The
 * two objects should be equal.
 */
public void testSerializable_Simple() throws ClassNotFoundException,
		IOException, InvalidNameException {

	NoInitialContextException exception = new NoInitialContextException(
			"Test exception Serializable: NoInitialContextException");
	exception.setRemainingName(new CompositeName(
			"www.apache.org/foundation"));
	exception.setResolvedName(new CompositeName(
			"http://www.apache.org/index.html"));
	exception.setResolvedObj("This is a string object.");
	exception.setRootCause(new NullPointerException("null pointer"));

	// write to byte array
	ByteArrayOutputStream baos = new ByteArrayOutputStream();
	ObjectOutputStream oos = new ObjectOutputStream(baos);
	oos.writeObject(exception);
	byte[] buffer = baos.toByteArray();
	oos.close();
	baos.close();

	// read from byte array
	ByteArrayInputStream bais = new ByteArrayInputStream(buffer);
	ObjectInputStream ois = new ObjectInputStream(bais);
	NoInitialContextException exception2 = (NoInitialContextException) ois
			.readObject();
	ois.close();
	bais.close();

	assertEquals(exception.getExplanation(), exception2.getExplanation());
	assertEquals(exception.getResolvedObj(), exception2.getResolvedObj());
	assertEquals(exception.getRemainingName(), exception2
			.getRemainingName());
	assertEquals(exception.getResolvedName(), exception2.getResolvedName());
	assertEquals(exception.getRootCause().getMessage(), exception2
			.getRootCause().getMessage());
	assertEquals(exception.getRootCause().getClass(), exception2
			.getRootCause().getClass());
}
 

import javax.naming.NoInitialContextException; //导入方法依赖的package包/类
/**
 * Test InvalidNameException serialization compatibility
 */
public void testSerializable_compatibility() throws InvalidNameException,
		ClassNotFoundException, IOException {
	ObjectInputStream ois = new ObjectInputStream(
               getClass()
                       .getClassLoader()
                       .getResourceAsStream(
                               "/serialization/javax/naming/NoInitialContextException.ser"));
	NoInitialContextException exception2 = (NoInitialContextException) ois
			.readObject();
	ois.close();

	NoInitialContextException exception = new NoInitialContextException(
			"Test exception Serializable: NoInitialContextException");
	exception.setRemainingName(new CompositeName("www.apache.org/foundation"));
	exception.setResolvedName(new CompositeName(
			"http://www.apache.org/index.html"));
	exception.setResolvedObj("This is a string object.");
	exception.setRootCause(new NullPointerException("null pointer"));

	assertEquals(exception.getExplanation(), exception2.getExplanation());
	assertEquals(exception.getResolvedObj(), exception2.getResolvedObj());
	assertEquals(exception.getRemainingName(), exception2
			.getRemainingName());
	assertEquals(exception.getResolvedName(), exception2.getResolvedName());
	assertEquals(exception.getRootCause().getMessage(), exception2
			.getRootCause().getMessage());
	assertEquals(exception.getRootCause().getClass(), exception2
			.getRootCause().getClass());
}
 

import javax.naming.NoInitialContextException; //导入方法依赖的package包/类
/**
 * Creates the initial context. If the initial object factory builder has
 * been set with {@link #setObjectFactoryBuilder(ObjectFactoryBuilder)},
 * the work is delegated to this builder. Otherwise, the method searches
 * for the property Context.INITIAL_CONTEXT_FACTORY first in the passed
 * table and then in the system properties. The value of this property is
 * uses as a class name to install the context factory. The corresponding
 * class must exist, be public and have the public parameterless constructor.
 *
 * @param environment the properties, used to create the context.
 *
 * @return the created context
 *
 * @throws NoInitialContextException if the initial builder is not set,
 *           the property Context.INITIAL_CONTEXT_FACTORY is missing of the
 *           class, named by this property, cannot be instantiated.
 * @throws NamingException if throws by the context factory
 */
public static Context getInitialContext (Hashtable<?, ?> environment)
  throws NamingException
{
  InitialContextFactory icf = null;

  if (icfb != null)
    icf = icfb.createInitialContextFactory(environment);
  else
    {
      String java_naming_factory_initial = null;
      if (environment != null)
        java_naming_factory_initial
          = (String) environment.get (Context.INITIAL_CONTEXT_FACTORY);
      if (java_naming_factory_initial == null)
        java_naming_factory_initial =
          System.getProperty (Context.INITIAL_CONTEXT_FACTORY);
      if (java_naming_factory_initial == null)
        throw new
          NoInitialContextException ("Can't find property: "
                                     + Context.INITIAL_CONTEXT_FACTORY);

      try
        {
          icf = (InitialContextFactory)Class.forName
              (java_naming_factory_initial, true,
               Thread.currentThread().getContextClassLoader())
              .newInstance ();
        }
      catch (Exception exception)
        {
          NoInitialContextException e
            = new NoInitialContextException
            ("Can't load InitialContextFactory class: "
             + java_naming_factory_initial);
          e.setRootCause(exception);
          throw e;
        }
    }

  return icf.getInitialContext (environment);
}
 

import javax.naming.NoInitialContextException; //导入方法依赖的package包/类
/**
  * Creates the initial context. If the initial object factory builder has
  * been set with {@link #setObjectFactoryBuilder(ObjectFactoryBuilder)},
  * the work is delegated to this builder. Otherwise, the method searches
  * for the property Context.INITIAL_CONTEXT_FACTORY first in the passed
  * table and then in the system properties. The value of this property is
  * uses as a class name to install the context factory. The corresponding
  * class must exist, be public and have the public parameterless constructor. 
  * 
  * @param environment the properties, used to create the context.
  * 
  * @return the created context
  * 
  * @throws NoInitialContextException if the initial builder is not set,
  *           the property Context.INITIAL_CONTEXT_FACTORY is missing of the
  *           class, named by this property, cannot be instantiated. 
  * @throws NamingException if throws by the context factory
  */
 public static Context getInitialContext (Hashtable<?, ?> environment)
   throws NamingException
 {
   InitialContextFactory icf = null;
   
   if (icfb != null)
     icf = icfb.createInitialContextFactory(environment);
   else
     {	 
String java_naming_factory_initial = null;
if (environment != null)
  java_naming_factory_initial
    = (String) environment.get (Context.INITIAL_CONTEXT_FACTORY);
if (java_naming_factory_initial == null)
  java_naming_factory_initial =
    System.getProperty (Context.INITIAL_CONTEXT_FACTORY);
if (java_naming_factory_initial == null)
  throw new
    NoInitialContextException ("Can't find property: "
			       + Context.INITIAL_CONTEXT_FACTORY);

try
  {
    icf = (InitialContextFactory)Class.forName
	(java_naming_factory_initial, true,
	 Thread.currentThread().getContextClassLoader())
	.newInstance ();
  }
catch (Exception exception)
  {
    NoInitialContextException e
      = new NoInitialContextException
      ("Can't load InitialContextFactory class: "
       + java_naming_factory_initial);
    e.setRootCause(exception);
    throw e;
  }
     }

   return icf.getInitialContext (environment);
 }