Examples of org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream

Package org.apache.wicket.core.util.objects.checker

Examples of org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream

org.apache.wicket.core.util.objects.checker.CheckingObjectOutputStream
Checks an object tree during serialization for wrong state by delegating the work to the used {@link IObjectChecker IObjectChecker}s.
As this class depends heavily on JDK's serialization internals using introspection, analyzing may not be possible, for instance when the runtime environment does not have sufficient rights to set fields accessible that would otherwise be hidden. You should call {@link CheckingObjectOutputStream#isAvailable()} to see whether this class can operate properly.An ObjectOutputStream that uses {@link IObjectChecker IObjectChecker}s to check the state of the object before serializing it. If the checker returns {@link org.apache.wicket.core.util.objects.checker.IObjectChecker.Result.Status#FAILURE}then the serialization process is stopped and the error is logged.

        if (CheckingObjectOutputStream.isAvailable())
        {
          try
          {
            // trigger serialization again, but this time gather some more info
            CheckingObjectOutputStream checkingObjectOutputStream =
              new CheckingObjectOutputStream(outputStream, new ObjectSerializationChecker(nsx));
            checkingObjectOutputStream.writeObject(obj);
          } 
          catch (Exception x)
          {
            if (x instanceof CheckingObjectOutputStream.ObjectCheckException)
            {

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   * @throws IOException
   */
  @Test
  public void valueMap() throws IOException
  {
    CheckingObjectOutputStream checker = new CheckingObjectOutputStream(new ByteArrayOutputStream(),
        new ObjectSerializationChecker(new NotSerializableException()));
    checker.writeObject(new ValueMap());
  }

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   */
  @Test
  public void checkObjectsByIdentity() throws IOException
  {
    CountingChecker countingChecker = new CountingChecker();
    CheckingObjectOutputStream outputStream = new CheckingObjectOutputStream(new ByteArrayOutputStream(), countingChecker);
    final IdentityTestType type = new IdentityTestType();
    type.member = new SerializableTypeWithMember(type);
    outputStream.writeObject(type);


    assertThat(countingChecker.getCount(), is(2));
  }

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   * @throws IOException
   */
  @Test
  public void nonSerializableTypeDetection() throws IOException
  {
    CheckingObjectOutputStream checker = new CheckingObjectOutputStream(new ByteArrayOutputStream(),
      new ObjectSerializationChecker(new NotSerializableException()));
    String exceptionMessage = null;
    try
    {
      checker.writeObject(new TestType2());
    }
    catch (CheckingObjectOutputStream.ObjectCheckException e)
    {
      exceptionMessage = e.getMessage();
    }

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   * @throws IOException
   */
  @Test
  public void valueMap() throws IOException
  {
    CheckingObjectOutputStream checker = new CheckingObjectOutputStream(new ByteArrayOutputStream(),
        new ObjectSerializationChecker(new NotSerializableException()));
    checker.writeObject(new ValueMap());
  }

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   */
  @Test
  public void checkObjectsByIdentity() throws IOException
  {
    CountingChecker countingChecker = new CountingChecker();
    CheckingObjectOutputStream outputStream = new CheckingObjectOutputStream(new ByteArrayOutputStream(), countingChecker);
    final IdentityTestType type = new IdentityTestType();
    type.member = new SerializableTypeWithMember(type);
    outputStream.writeObject(type);


    assertThat(countingChecker.getCount(), is(2));
  }

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   * @throws IOException
   */
  @Test
  public void nonSerializableTypeDetection() throws IOException
  {
    CheckingObjectOutputStream checker = new CheckingObjectOutputStream(new ByteArrayOutputStream(),
      new ObjectSerializationChecker(new NotSerializableException()));
    String exceptionMessage = null;
    try
    {
      checker.writeObject(new TestType2());
    }
    catch (CheckingObjectOutputStream.ObjectCheckException e)
    {
      exceptionMessage = e.getMessage();
    }

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    {
      @Override
      protected ObjectOutputStream newObjectOutputStream(OutputStream out) throws IOException
      {
        IObjectChecker checker = new NotDetachedModelChecker();
        return new CheckingObjectOutputStream(out, checker);
      }
    };


    IModel<String> model = new NotDetachedModel();
    model.getObject();

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  {
    JavaSerializer serializer = new JavaSerializer("JavaSerializerTest-normal") {
      @Override
      protected ObjectOutputStream newObjectOutputStream(OutputStream out) throws IOException
      {
        return new CheckingObjectOutputStream(out);
      }
    };
    byte[] bytes = serializer.serialize("Something to serialize");
    assertEquals(57, bytes.length);
  }

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   */
  @Test
  public void checkObjectsByIdentity() throws IOException
  {
    CountingChecker countingChecker = new CountingChecker();
    CheckingObjectOutputStream outputStream = new CheckingObjectOutputStream(new ByteArrayOutputStream(), countingChecker);
    final IdentityTestType type = new IdentityTestType();
    type.member = new SerializableTypeWithMember(type);
    outputStream.writeObject(type);


    assertThat(countingChecker.getCount(), is(2));
  }

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