Package java.io

Examples of java.io.ObjectStreamClass$Caches


        private boolean isIntercepting = false;
        @Override
        protected ObjectStreamClass readClassDescriptor() throws IOException,
        ClassNotFoundException {
          isIntercepting = true;
          ObjectStreamClass osc = super.readClassDescriptor();
          isIntercepting = false;
          return osc;
        }
        @Override
        public String readUTF() throws IOException {
View Full Code Here


    {
      throw new WicketNotSerializableException(
        toPrettyPrintedStack(obj.getClass().getName()), exception);
    }

    ObjectStreamClass desc;
    for (;;)
    {
      try
      {
        desc = (ObjectStreamClass)LOOKUP_METHOD.invoke(null, new Object[] { cls,
            Boolean.TRUE });
        Class<?> repCl;
        if (!((Boolean)HAS_WRITE_REPLACE_METHOD_METHOD.invoke(desc, (Object[])null)).booleanValue() ||
          (obj = INVOKE_WRITE_REPLACE_METHOD.invoke(desc, new Object[] { obj })) == null ||
          (repCl = obj.getClass()) == cls)
        {
          break;
        }
        cls = repCl;
      }
      catch (IllegalAccessException e)
      {
        throw new RuntimeException(e);
      }
      catch (InvocationTargetException e)
      {
        throw new RuntimeException(e);
      }
    }

    if (cls.isPrimitive())
    {
      // skip
    }
    else if (cls.isArray())
    {
      checked.put(obj, null);
      Class<?> ccl = cls.getComponentType();
      if (!(ccl.isPrimitive()))
      {
        Object[] objs = (Object[])obj;
        for (int i = 0; i < objs.length; i++)
        {
          String arrayPos = "[" + i + "]";
          simpleName = arrayPos;
          fieldDescription += arrayPos;
          check(objs[i]);
        }
      }
    }
    else if (obj instanceof Externalizable && (!Proxy.isProxyClass(cls)))
    {
      Externalizable extObj = (Externalizable)obj;
      try
      {
        extObj.writeExternal(new ObjectOutputAdaptor()
        {
          private int count = 0;

          public void writeObject(Object streamObj) throws IOException
          {
            // Check for circular reference.
            if (checked.containsKey(streamObj))
            {
              return;
            }

            checked.put(streamObj, null);
            String arrayPos = "[write:" + count++ + "]";
            simpleName = arrayPos;
            fieldDescription += arrayPos;

            check(streamObj);
          }
        });
      }
      catch (Exception e)
      {
        if (e instanceof WicketNotSerializableException)
        {
          throw (WicketNotSerializableException)e;
        }
        log.warn("error delegating to Externalizable : " + e.getMessage() + ", path: " +
          currentPath());
      }
    }
    else
    {
      Method writeObjectMethod = null;
      Object o = writeObjectMethodCache.get(cls);
      if (o != null)
      {
        if (o instanceof Method)
        {
          writeObjectMethod = (Method)o;
        }
      }
      else
      {
        try
        {
          writeObjectMethod = cls.getDeclaredMethod("writeObject",
            new Class[] { java.io.ObjectOutputStream.class });
        }
        catch (SecurityException e)
        {
          // we can't access/ set accessible to true
          writeObjectMethodCache.put(cls, Boolean.FALSE);
        }
        catch (NoSuchMethodException e)
        {
          // cls doesn't have that method
          writeObjectMethodCache.put(cls, Boolean.FALSE);
        }
      }

      final Object original = obj;
      if (writeObjectMethod != null)
      {
        class InterceptingObjectOutputStream extends ObjectOutputStream
        {
          private int counter;

          InterceptingObjectOutputStream() throws IOException
          {
            super(DUMMY_OUTPUT_STREAM);
            enableReplaceObject(true);
          }

          @Override
          protected Object replaceObject(Object streamObj) throws IOException
          {
            if (streamObj == original)
            {
              return streamObj;
            }

            counter++;
            // Check for circular reference.
            if (checked.containsKey(streamObj))
            {
              return null;
            }

            checked.put(original, null);
            String arrayPos = "[write:" + counter + "]";
            simpleName = arrayPos;
            fieldDescription += arrayPos;
            check(streamObj);
            return streamObj;
          }
        }
        try
        {
          InterceptingObjectOutputStream ioos = new InterceptingObjectOutputStream();
          ioos.writeObject(obj);
        }
        catch (Exception e)
        {
          if (e instanceof WicketNotSerializableException)
          {
            throw (WicketNotSerializableException)e;
          }
          log.warn("error delegating to writeObject : " + e.getMessage() + ", path: " +
            currentPath());
        }
      }
      else
      {
        Object[] slots;
        try
        {
          slots = (Object[])GET_CLASS_DATA_LAYOUT_METHOD.invoke(desc, (Object[])null);
        }
        catch (Exception e)
        {
          throw new RuntimeException(e);
        }
        for (int i = 0; i < slots.length; i++)
        {
          ObjectStreamClass slotDesc;
          try
          {
            Field descField = slots[i].getClass().getDeclaredField("desc");
            descField.setAccessible(true);
            slotDesc = (ObjectStreamClass)descField.get(slots[i]);
View Full Code Here

      ClassNotFoundException {

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ObjectOutputStreamWithWriteDesc1 oos = new ObjectOutputStreamWithWriteDesc1(
        baos);
    ObjectStreamClass desc = ObjectStreamClass
    .lookup(TestClassForSerialization.class);
    oos.writeClassDescriptor(desc);
    oos.close();
   
        byte[] bytes = baos.toByteArray();
    ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
    ObjectIutputStreamWithReadDesc1 ois = new ObjectIutputStreamWithReadDesc1(
        bais);
    Object obj = ois.readClassDescriptor();
    ois.close();
    assertEquals(desc.getClass(), obj.getClass());
       
        //eof
        bais = new ByteArrayInputStream(bytes);
        ExceptionalBufferedInputStream bis = new ExceptionalBufferedInputStream(
                bais);
View Full Code Here

    /**
     * @tests serilization
     */
    public void test_objectStreamClass_getFields() throws Exception {
        //Regression for HARMONY-2674
        ObjectStreamClass objectStreamClass = ObjectStreamClass
                .lookup(File.class);
        ObjectStreamField[] objectStreamFields = objectStreamClass.getFields();
        assertEquals(1, objectStreamFields.length);
        ObjectStreamField objectStreamField = objectStreamFields[0];
        assertEquals("path", objectStreamField.getName());
        assertEquals(String.class, objectStreamField.getType());
    }
View Full Code Here

            this.returnClass = returnClass;
        }

        public ObjectStreamClass readClassDescriptor() throws IOException,
                ClassNotFoundException {
            ObjectStreamClass osc = super.readClassDescriptor();

            if (osc.getName().equals(returnClass.getName())) {
                return ObjectStreamClass.lookup(returnClass);
            }
            return osc;
        }
View Full Code Here

   */
  public void test_forClass() {
    // Test for method java.lang.Class java.io.ObjectStreamClass.forClass()
    // Need to test during serialization to be sure an instance is
    // returned
    ObjectStreamClass osc = ObjectStreamClass.lookup(DummyClass.class);
    assertTrue("forClass returned an object: " + osc.forClass(), osc
        .forClass().equals(DummyClass.class));
  }
View Full Code Here

   * @tests java.io.ObjectStreamClass#getField(java.lang.String)
   */
  public void test_getFieldLjava_lang_String() {
    // Test for method java.io.ObjectStreamField
    // java.io.ObjectStreamClass.getField(java.lang.String)
    ObjectStreamClass osc = ObjectStreamClass.lookup(DummyClass.class);
    assertEquals("getField did not return correct field", 'J', osc.getField("bam")
        .getTypeCode());
    assertNull("getField did not null for non-existent field", osc
        .getField("wham"));
  }
View Full Code Here

   * @tests java.io.ObjectStreamClass#getFields()
   */
  public void test_getFields() {
    // Test for method java.io.ObjectStreamField []
    // java.io.ObjectStreamClass.getFields()
    ObjectStreamClass osc = ObjectStreamClass.lookup(DummyClass.class);
    ObjectStreamField[] osfArray = osc.getFields();
    assertTrue(
        "Array of fields should be of length 2 but is instead of length: "
            + osfArray.length, osfArray.length == 2);
  }
View Full Code Here

  /**
   * @tests java.io.ObjectStreamClass#getName()
   */
  public void test_getName() {
    // Test for method java.lang.String java.io.ObjectStreamClass.getName()
    ObjectStreamClass osc = ObjectStreamClass.lookup(DummyClass.class);
    assertTrue("getName returned incorrect name: " + osc.getName(), osc
        .getName().equals(
            "tests.api.java.io.ObjectStreamClassTest$DummyClass"));
  }
View Full Code Here

  /**
   * @tests java.io.ObjectStreamClass#getSerialVersionUID()
   */
  public void test_getSerialVersionUID() {
    // Test for method long java.io.ObjectStreamClass.getSerialVersionUID()
    ObjectStreamClass osc = ObjectStreamClass.lookup(DummyClass.class);
    assertTrue("getSerialversionUID returned incorrect uid: "
        + osc.getSerialVersionUID() + " instead of "
        + DummyClass.getUID(), osc.getSerialVersionUID() == DummyClass
        .getUID());
  }
View Full Code Here

TOP

Related Classes of java.io.ObjectStreamClass$Caches

Copyright © 2018 www.massapicom. All rights reserved.
All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.