Examples of codec.asn1.ASN1Choice

org.apache.harmony.security.asn1.ASN1Choice
This type represents the ASN.1 CHOICE type as specified in ITU-T Recommendation X.680. On decoding, the decoder must be able to decide umambiguously which alternative choice it has to decode. For this reason all elements in a CHOICE type must have distinctive tags.
This class does not enforce the distinctive tag rule. Instead, the alternative with the first matching tag should be chosen by decoders. The application that builds the CHOICE type must take care not to produce ambiguous sets of alternatives.
This class distinguishes alternative choices and an inner type. Upon decoding, the inner type is selected from the list of choices based on the identifier octets encountered in the encoded stream. This type is then {@link #setInnerType set as the inner type} of thisinstance. Unless an inner type is set (either explicitly or by means of decoding) the state of the choice is undefined.
This instance always mimicks its inner type. The methods {@link ASN1Type#getTag getTag}, {@link ASN1Type#getTagClass getTagClass}, {@link ASN1Type#getValue getValue} all returnthe appropriate results of the corresponding method of the inner type. On encoding an instance of this class the inner type is encoded.
No nested CHOICE classes are supported. In principle this is easily supported but it is not good style to build such structures. @author Volker Roth @author Stefan Endler @version "$Id: ASN1Choice.java,v 1.3 2007/08/11 18:21:50 sendler Exp $"

    static public OIDRegistry getDefaultRegistry() {
  return default_;
    }


    public static void main(String[] argv) {
  OIDRegistry reg;
  int n;


  try {
      reg = PKCS12OIDRegistry.getDefaultRegistry();


      for (n = 0; n < argv.length; n++) {
    System.out.println(reg.getASN1Type(new ASN1ObjectIdentifier(
      argv[n])));
      }
  } catch (Exception e) {
      e.printStackTrace(System.err);
  }

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    static public OIDRegistry getDefaultRegistry() {
  return default_;
    }


    public static void main(String[] argv) {
  OIDRegistry reg;
  int n;


  try {
      reg = PKCSRegistry.getDefaultRegistry();


      for (n = 0; n < argv.length; n++) {
    System.out.println(reg.getASN1Type(new ASN1ObjectIdentifier(
      argv[n])));
      }
  } catch (Exception e) {
      e.printStackTrace(System.err);
  }

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        }
    }


    public void testChoiceInSequenceOf() throws IOException {


        ASN1Choice choice = new ASN1Choice(new ASN1Type[] {
                ASN1Boolean.getInstance(), ASN1Integer.getInstance() }) {


            public int getIndex(Object object) {
                if (object instanceof Boolean) {
                    return 0; // ASN1Boolean

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    //
    //


    public void test_ExplicitChoice() throws IOException {


        ASN1Choice choice = new ASN1Choice(new ASN1Type[] { ASN1Boolean
                .getInstance() }) {


            public Object getObjectToEncode(Object obj) {
                return obj;
            }

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    /**
     * TODO Put method description here
     */
    public void testChoiceOfChoice() throws Exception {


        ASN1Choice choice1 = new ASN1Choice(new ASN1Type[] {
                ASN1Oid.getInstance(), // first
                ASN1Boolean.getInstance(),// second: decoded component
                ASN1Integer.getInstance() // third
                }) {


            public Object getDecodedObject(BerInputStream in)
                    throws IOException {


                assertEquals("choice1", 1, in.choiceIndex);


                return in.content;
            }


            public Object getObjectToEncode(Object obj) {
                return obj;
            }


            public int getIndex(Object obj) {
                return 0;
            }
        };


        ASN1Choice choice2 = new ASN1Choice(new ASN1Type[] { choice1, // first: decoded component
                ASN1BitString.getInstance() // second
                }) {


            public Object getDecodedObject(BerInputStream in)
                    throws IOException {


                assertEquals("choice2", 0, in.choiceIndex);


                return in.content;
            }


            public Object getObjectToEncode(Object obj) {
                return obj;
            }


            public int getIndex(Object obj) {
                return 0;
            }
        };


        Boolean b = (Boolean) choice2.decode(new byte[] { 0x01, 0x01, 0x00 });


        assertTrue(b == Boolean.FALSE);
    }

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    /**
     * TODO Put method description here
     */
    public void testDistinctTags() throws Exception {


        ASN1Choice choice1 = new ASN1Choice(new ASN1Type[] {
                ASN1Boolean.getInstance(),// component to be checked
                ASN1Oid.getInstance(), ASN1Integer.getInstance() }) {


            public Object getObjectToEncode(Object obj) {
                return obj;
            }


            public int getIndex(Object obj) {
                return 0;
            }
        };


        // two ASN.1 booleans
        try {
            new ASN1Choice(new ASN1Type[] { choice1, //
                    ASN1Boolean.getInstance() // component to be checked
                    }) {


                public Object getObjectToEncode(Object obj) {
                    return obj;
                }


                public int getIndex(Object obj) {
                    return 0;
                }
            };
            fail("No expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {
        }


        // ASN.1 ANY
        try {
            new ASN1Choice(new ASN1Type[] { choice1,//
                    ASN1Any.getInstance() // component to be checked
                    }) {


                public Object getObjectToEncode(Object obj) {
                    return obj;
                }


                public int getIndex(Object obj) {
                    return 0;
                }
            };
            fail("No expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {
        }


        // two choices
        ASN1Choice choice2 = new ASN1Choice(new ASN1Type[] {
                ASN1BitString.getInstance(), //
                ASN1Boolean.getInstance() //component to be checked
                }) {


            public Object getObjectToEncode(Object obj) {
                return obj;
            }


            public int getIndex(Object obj) {
                return 0;
            }
        };


        try {
            new ASN1Choice(new ASN1Type[] { choice1, choice2 }) {


                public Object getObjectToEncode(Object obj) {
                    return obj;
                }

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        }
    }


    public void testChoiceInSequenceOf() throws IOException {


        ASN1Choice choice = new ASN1Choice(new ASN1Type[] {
                ASN1Boolean.getInstance(), ASN1Integer.getInstance() }) {


            public int getIndex(Object object) {
                if (object instanceof Boolean) {
                    return 0; // ASN1Boolean

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    //
    //


    public void test_ExplicitChoice() throws IOException {


        ASN1Choice choice = new ASN1Choice(new ASN1Type[] { ASN1Boolean
                .getInstance() }) {


            public Object getObjectToEncode(Object obj) {
                return obj;
            }

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    /**
     * TODO Put method description here
     */
    public void testChoiceOfChoice() throws Exception {


        ASN1Choice choice1 = new ASN1Choice(new ASN1Type[] {
                ASN1Oid.getInstance(), // first
                ASN1Boolean.getInstance(),// second: decoded component
                ASN1Integer.getInstance() // third
                }) {


            public Object getDecodedObject(BerInputStream in)
                    throws IOException {


                assertEquals("choice1", 1, in.choiceIndex);


                return in.content;
            }


            public Object getObjectToEncode(Object obj) {
                return obj;
            }


            public int getIndex(Object obj) {
                return 0;
            }
        };


        ASN1Choice choice2 = new ASN1Choice(new ASN1Type[] { choice1, // first: decoded component
                ASN1BitString.getInstance() // second
                }) {


            public Object getDecodedObject(BerInputStream in)
                    throws IOException {


                assertEquals("choice2", 0, in.choiceIndex);


                return in.content;
            }


            public Object getObjectToEncode(Object obj) {
                return obj;
            }


            public int getIndex(Object obj) {
                return 0;
            }
        };


        Boolean b = (Boolean) choice2.decode(new byte[] { 0x01, 0x01, 0x00 });


        assertTrue(b == Boolean.FALSE);
    }

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    /**
     * TODO Put method description here
     */
    public void testDistinctTags() throws Exception {


        ASN1Choice choice1 = new ASN1Choice(new ASN1Type[] {
                ASN1Boolean.getInstance(),// component to be checked
                ASN1Oid.getInstance(), ASN1Integer.getInstance() }) {


            public Object getObjectToEncode(Object obj) {
                return obj;
            }


            public int getIndex(Object obj) {
                return 0;
            }
        };


        // two ASN.1 booleans
        try {
            new ASN1Choice(new ASN1Type[] { choice1, //
                    ASN1Boolean.getInstance() // component to be checked
                    }) {


                public Object getObjectToEncode(Object obj) {
                    return obj;
                }


                public int getIndex(Object obj) {
                    return 0;
                }
            };
            fail("No expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {
        }


        // ASN.1 ANY
        try {
            new ASN1Choice(new ASN1Type[] { choice1,//
                    ASN1Any.getInstance() // component to be checked
                    }) {


                public Object getObjectToEncode(Object obj) {
                    return obj;
                }


                public int getIndex(Object obj) {
                    return 0;
                }
            };
            fail("No expected IllegalArgumentException");
        } catch (IllegalArgumentException e) {
        }


        // two choices
        ASN1Choice choice2 = new ASN1Choice(new ASN1Type[] {
                ASN1BitString.getInstance(), //
                ASN1Boolean.getInstance() //component to be checked
                }) {


            public Object getObjectToEncode(Object obj) {
                return obj;
            }


            public int getIndex(Object obj) {
                return 0;
            }
        };


        try {
            new ASN1Choice(new ASN1Type[] { choice1, choice2 }) {


                public Object getObjectToEncode(Object obj) {
                    return obj;
                }

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codec.examples.anyDefinedBy.ErrorParameterType1

codec.examples.anyDefinedBy.ErrorResolver

codec.examples.defaultValues.Payment

codec.examples.enumerated.ResponseStatus

codec.examples.oidRegistry.ErrorMessage

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codec.examples.optionalFields.Person

codec.examples.sequence.Order

codec.examples.sequenceOf.Order

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