Java Code Examples for javax.naming.spi.ObjectFactory#getObjectInstance()

/**
 * Resolve a Remote Object: If this object is a reference return the
 * reference
 * @param o the object to resolve
 * @param n the name of this object
 * @return a <code>Referenceable</code> if o is a Reference and the
 *         inititial object o if else
 */
private Object resolveObject(Object o, Name name) {
    try {
        if (o instanceof Reference) {
            // build of the Referenceable object with is Reference
            Reference objRef = (Reference) o;
            ObjectFactory objFact = (ObjectFactory) (Thread.currentThread().getContextClassLoader()
                    .loadClass(objRef.getFactoryClassName())).newInstance();
            return objFact.getObjectInstance(objRef, name, this, this.getEnvironment());
        } else {
            return o;
        }
    } catch (Exception e) {
        TraceCarol.error("LmiInitialContext.resolveObject()", e);
        return o;
    }
}
 

/**
 * Resolve a Remote Object: If this object is a reference return the
 * reference
 * @param o the object to resolve
 * @param n the name of this object
 * @return a <code>Referenceable</code> if o is a Reference and the
 *         inititial object o if else
 */
private Object resolveObject(Object o, Name name) {
    try {
        if (o instanceof Reference) {
            // build of the Referenceable object with is Reference
            Reference objRef = (Reference) o;
            ObjectFactory objFact = (ObjectFactory) (Thread.currentThread().getContextClassLoader()
                    .loadClass(objRef.getFactoryClassName())).newInstance();
            return objFact.getObjectInstance(objRef, name, this, this.getEnvironment());
        } else {
            return o;
        }
    } catch (Exception e) {
        TraceCarol.error("LmiInitialContext.resolveObject()", e);
        return o;
    }
}
 

public Object getObjectInstance(Object ref, Name name, Context nameCtx,
    Hashtable<?,?> env) throws Exception {

    if (!isLdapRef(ref)) {
        return null;
    }
    ObjectFactory factory = new ldapURLContextFactory();
    String[] urls = getURLs((Reference)ref);
    return factory.getObjectInstance(urls, name, nameCtx, env);
}
 

private <T> T getObject(Reference reference, Class<T> tClass) throws Exception {
   String factoryName = reference.getFactoryClassName();
   Class<?> factoryClass = Class.forName(factoryName);
   ObjectFactory factory = (ObjectFactory) factoryClass.newInstance();
   Object o = factory.getObjectInstance(reference, null, null, null);
   if (tClass.isAssignableFrom(tClass)) {
      return tClass.cast(o);
   } else {
      throw new IllegalStateException("Expected class, " + tClass.getName());
   }
}
 

@Test
public void testReference() throws Exception {
   ActiveMQDestination queue = (ActiveMQDestination) ActiveMQJMSClient.createQueue(RandomUtil.randomString());
   Reference reference = queue.getReference();
   String factoryName = reference.getFactoryClassName();
   Class<?> factoryClass = Class.forName(factoryName);
   ObjectFactory factory = (ObjectFactory) factoryClass.newInstance();
   Object object = factory.getObjectInstance(reference, null, null, null);
   Assert.assertNotNull(object);
   Assert.assertTrue(object instanceof ActiveMQDestination);
   Assert.assertEquals(queue, object);
}
 

public Object getObjectInstance(Object ref, Name name, Context nameCtx,
    Hashtable<?,?> env) throws Exception {

    if (!isLdapRef(ref)) {
        return null;
    }
    ObjectFactory factory = new ldapURLContextFactory();
    String[] urls = getURLs((Reference)ref);
    return factory.getObjectInstance(urls, name, nameCtx, env);
}
 

/**
 * Make sure it is possible to create a new data source using
 * <code>Referencable</code>, that the new instance has the correct
 * default values set for the bean properties and finally that the
 * data source can be serialized/deserialized.
 *
 * @param dsDesc data source descriptor
 * @param className data source class name
 * @throws Exception on a wide variety of error conditions...
 */
private void assertDataSourceReferenceEmpty(DataSourceDescriptor dsDesc,
                                            String className)
        throws Exception {
    println("Testing recreated empty data source.");
    // Create an empty data source.
    Object ds = Class.forName(className).newInstance();
    Referenceable refDs = (Referenceable)ds;
    Reference dsAsReference = refDs.getReference();
    String factoryClassName = dsAsReference.getFactoryClassName();
    ObjectFactory factory =
        (ObjectFactory)Class.forName(factoryClassName).newInstance();
    Object recreatedDs =
        factory.getObjectInstance(dsAsReference, null, null, null);
    // Empty, recreated data source should not be the same as the one we
    // created earlier on.
    assertNotNull("Recreated datasource is <null>", recreatedDs);
    assertNotSame(recreatedDs, ds);
    compareDataSources(dsDesc, ds, recreatedDs, true);

    // Serialize and recreate data source with default values.
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(ds);
    oos.flush();
    oos.close();
    ByteArrayInputStream bais =
            new ByteArrayInputStream(baos.toByteArray());
    ObjectInputStream ois = new ObjectInputStream(bais);
    recreatedDs = ois.readObject();
    compareDataSources(dsDesc, ds, recreatedDs, true);
}
 

public Object getObjectInstance(Object ref, Name name, Context nameCtx,
    Hashtable<?,?> env) throws Exception {

    if (!isLdapRef(ref)) {
        return null;
    }
    ObjectFactory factory = new ldapURLContextFactory();
    String[] urls = getURLs((Reference)ref);
    return factory.getObjectInstance(urls, name, nameCtx, env);
}
 

public Object getObjectInstance(Object ref, Name name, Context nameCtx,
    Hashtable<?,?> env) throws Exception {

    if (!isLdapRef(ref)) {
        return null;
    }
    ObjectFactory factory = new ldapURLContextFactory();
    String[] urls = getURLs((Reference)ref);
    return factory.getObjectInstance(urls, name, nameCtx, env);
}
 

/**
 * Make sure it is possible to create a new data source using
 * <code>Referencable</code>, that the new instance has the correct
 * default values set for the bean properties and finally that the
 * data source can be serialized/deserialized.
 *
 * @param dsDesc data source descriptor
 * @param className data source class name
 * @throws Exception on a wide variety of error conditions...
 */
private void assertDataSourceReferenceEmpty(DataSourceDescriptor dsDesc,
                                            String className)
        throws Exception {
    println("Testing recreated empty data source.");
    // Create an empty data source.
    Object ds = Class.forName(className).newInstance();
    Referenceable refDs = (Referenceable)ds;
    Reference dsAsReference = refDs.getReference();
    String factoryClassName = dsAsReference.getFactoryClassName();
    ObjectFactory factory =
        (ObjectFactory)Class.forName(factoryClassName).newInstance();
    Object recreatedDs =
        factory.getObjectInstance(dsAsReference, null, null, null);
    // Empty, recreated data source should not be the same as the one we
    // created earlier on.
    assertNotNull("Recreated datasource is <null>", recreatedDs);
    assertNotSame(recreatedDs, ds);
    compareDataSources(dsDesc, ds, recreatedDs, true);

    // Serialize and recreate data source with default values.
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(ds);
    oos.flush();
    oos.close();
    ByteArrayInputStream bais =
            new ByteArrayInputStream(baos.toByteArray());
    ObjectInputStream ois = new ObjectInputStream(bais);
    recreatedDs = ois.readObject();
    compareDataSources(dsDesc, ds, recreatedDs, true);
}
 

public Object getObjectInstance(Object ref, Name name, Context nameCtx,
    Hashtable<?,?> env) throws Exception {

    if (!isLdapRef(ref)) {
        return null;
    }
    ObjectFactory factory = new ldapURLContextFactory();
    String[] urls = getURLs((Reference)ref);
    return factory.getObjectInstance(urls, name, nameCtx, env);
}
 

public Object getObjectInstance(Object ref, Name name, Context nameCtx,
    Hashtable<?,?> env) throws Exception {

    if (!isLdapRef(ref)) {
        return null;
    }
    ObjectFactory factory = new ldapURLContextFactory();
    String[] urls = getURLs((Reference)ref);
    return factory.getObjectInstance(urls, name, nameCtx, env);
}
 

public Object getObjectInstance(Object ref, Name name, Context nameCtx,
    Hashtable<?,?> env) throws Exception {

    if (!isLdapRef(ref)) {
        return null;
    }
    ObjectFactory factory = new ldapURLContextFactory();
    String[] urls = getURLs((Reference)ref);
    return factory.getObjectInstance(urls, name, nameCtx, env);
}
 

public Object getObjectInstance(Object ref, Name name, Context nameCtx,
    Hashtable<?,?> env) throws Exception {

    if (!isLdapRef(ref)) {
        return null;
    }
    ObjectFactory factory = new ldapURLContextFactory();
    String[] urls = getURLs((Reference)ref);
    return factory.getObjectInstance(urls, name, nameCtx, env);
}
 

public Object getObjectInstance(Object ref, Name name, Context nameCtx,
    Hashtable<?,?> env) throws Exception {

    if (!isLdapRef(ref)) {
        return null;
    }
    ObjectFactory factory = new ldapURLContextFactory();
    String[] urls = getURLs((Reference)ref);
    return factory.getObjectInstance(urls, name, nameCtx, env);
}
 

public Object getObjectInstance(Object ref, Name name, Context nameCtx,
    Hashtable<?,?> env) throws Exception {

    if (!isLdapRef(ref)) {
        return null;
    }
    ObjectFactory factory = new ldapURLContextFactory();
    String[] urls = getURLs((Reference)ref);
    return factory.getObjectInstance(urls, name, nameCtx, env);
}
 

/**
 * Make sure it is possible to create a new data source using
 * <code>Referencable</code>, that the new instance has the correct
 * default values set for the bean properties and finally that the
 * data source can be serialized/deserialized.
 *
 * @param dsDesc data source descriptor
 * @param className data source class name
 * @throws Exception on a wide variety of error conditions...
 */
private void assertDataSourceReferenceEmpty(DataSourceDescriptor dsDesc,
                                            String className)
        throws Exception {
    println("Testing recreated empty data source.");
    // Create an empty data source.
    Object ds = Class.forName(className).newInstance();
    Referenceable refDs = (Referenceable)ds;
    Reference dsAsReference = refDs.getReference();
    String factoryClassName = dsAsReference.getFactoryClassName();
    ObjectFactory factory =
        (ObjectFactory)Class.forName(factoryClassName).newInstance();
    Object recreatedDs =
        factory.getObjectInstance(dsAsReference, null, null, null);
    // Empty, recreated data source should not be the same as the one we
    // created earlier on.
    assertNotNull("Recreated datasource is <null>", recreatedDs);
    assertNotSame(recreatedDs, ds);
    compareDataSources(dsDesc, ds, recreatedDs, true);

    // Serialize and recreate data source with default values.
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(ds);
    oos.flush();
    oos.close();
    ByteArrayInputStream bais =
            new ByteArrayInputStream(baos.toByteArray());
    ObjectInputStream ois = new ObjectInputStream(bais);
    recreatedDs = ois.readObject();
    compareDataSources(dsDesc, ds, recreatedDs, true);
}
 

/**
 * Make sure it is possible to recreate and serialize/deserialize a
 * populated data source.
 * <p>
 * Populated means the various bean properties have non-default
 * values set.
 *
 * @param dsDesc data source descriptor
 * @param className data source class name
 * @throws Exception on a wide variety of error conditions...
 */
private void assertDataSourceReferencePopulated(
                                            DataSourceDescriptor dsDesc,
                                            String className)
        throws Exception {
    println("Testing recreated populated data source.");
    Object ds = Class.forName(className).newInstance();
    // Populate the data source.
    Iterator propIter = dsDesc.getPropertyIterator();
    while (propIter.hasNext()) {
        String property = (String)propIter.next();
        String value = dsDesc.getPropertyValue(property);
        Method getMethod = getGet(property, ds);
        Method setMethod = getSet(getMethod, ds);
        Class paramType = getMethod.getReturnType();

        if (paramType.equals(Integer.TYPE)) {
            setMethod.invoke(ds, new Object[] {Integer.valueOf(value)});
        } else if (paramType.equals(String.class)) {
            setMethod.invoke(ds, new Object[] {value});
        } else if (paramType.equals(Boolean.TYPE)) {
            setMethod.invoke(ds, new Object[] {Boolean.valueOf(value)});
        } else if (paramType.equals(Short.TYPE)) {
            setMethod.invoke(ds, new Object[] {Short.valueOf(value)});
        } else if (paramType.equals(Long.TYPE)) {
            setMethod.invoke(ds, new Object[] {Long.valueOf(value)});
        } else {
            fail("'" + property + "' not settable - update test!!");
        }
    }

    Referenceable refDs = (Referenceable)ds;
    Reference dsAsReference = refDs.getReference();
    String factoryClassName = dsAsReference.getFactoryClassName();
    ObjectFactory factory =
        (ObjectFactory)Class.forName(factoryClassName).newInstance();
    Object recreatedDs =
        factory.getObjectInstance(dsAsReference, null, null, null);
    // Recreated should not be same instance as original.
    assertNotSame(recreatedDs, ds);
    compareDataSources(dsDesc, ds, recreatedDs, false);

    // Serialize and recreate.
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(ds);
    oos.flush();
    oos.close();
    ByteArrayInputStream bais =
            new ByteArrayInputStream(baos.toByteArray());
    ObjectInputStream ois = new ObjectInputStream(bais);
    recreatedDs = ois.readObject();
    compareDataSources(dsDesc, ds, recreatedDs, false);
}
 

/**
 * Make sure it is possible to recreate and serialize/deserialize a
 * populated data source.
 * <p>
 * Populated means the various bean properties have non-default
 * values set.
 *
 * @param dsDesc data source descriptor
 * @param className data source class name
 * @throws Exception on a wide variety of error conditions...
 */
private void assertDataSourceReferencePopulated(
                                            DataSourceDescriptor dsDesc,
                                            String className)
        throws Exception {
    println("Testing recreated populated data source.");
    Object ds = Class.forName(className).newInstance();
    // Populate the data source.
    Iterator propIter = dsDesc.getPropertyIterator();
    while (propIter.hasNext()) {
        String property = (String)propIter.next();
        String value = dsDesc.getPropertyValue(property);
        Method getMethod = getGet(property, ds);
        Method setMethod = getSet(getMethod, ds);
        Class paramType = getMethod.getReturnType();

        if (paramType.equals(Integer.TYPE)) {
            setMethod.invoke(ds, new Object[] {Integer.valueOf(value)});
        } else if (paramType.equals(String.class)) {
            setMethod.invoke(ds, new Object[] {value});
        } else if (paramType.equals(Boolean.TYPE)) {
            setMethod.invoke(ds, new Object[] {Boolean.valueOf(value)});
        } else if (paramType.equals(Short.TYPE)) {
            setMethod.invoke(ds, new Object[] {Short.valueOf(value)});
        } else if (paramType.equals(Long.TYPE)) {
            setMethod.invoke(ds, new Object[] {Long.valueOf(value)});
        } else {
            fail("'" + property + "' not settable - update test!!");
        }
    }

    Referenceable refDs = (Referenceable)ds;
    Reference dsAsReference = refDs.getReference();
    String factoryClassName = dsAsReference.getFactoryClassName();
    ObjectFactory factory =
        (ObjectFactory)Class.forName(factoryClassName).newInstance();
    Object recreatedDs =
        factory.getObjectInstance(dsAsReference, null, null, null);
    // Recreated should not be same instance as original.
    assertNotSame(recreatedDs, ds);
    compareDataSources(dsDesc, ds, recreatedDs, false);

    // Serialize and recreate.
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStream oos = new ObjectOutputStream(baos);
    oos.writeObject(ds);
    oos.flush();
    oos.close();
    ByteArrayInputStream bais =
            new ByteArrayInputStream(baos.toByteArray());
    ObjectInputStream ois = new ObjectInputStream(bais);
    recreatedDs = ois.readObject();
    compareDataSources(dsDesc, ds, recreatedDs, false);
}
 

@Test
public void testReferenceCF() throws Exception {
   Reference cfRef = ((Referenceable) cf).getReference();

   String factoryName = cfRef.getFactoryClassName();

   Class<?> factoryClass = Class.forName(factoryName);

   ObjectFactory factory = (ObjectFactory) factoryClass.newInstance();

   Object instance = factory.getObjectInstance(cfRef, null, null, null);

   ProxyAssertSupport.assertTrue(instance instanceof ActiveMQConnectionFactory);

   ActiveMQJMSConnectionFactory cf2 = (ActiveMQJMSConnectionFactory) instance;

   simpleSendReceive(cf2, queue1);
}