Examples of com.amazonaws.util.json.JSONObject$Null

com.amazonaws.util.json.JSONObject
JSONObject.NULL is equivalent to the value that JavaScript calls null, whilst Java's null is equivalent to the value that JavaScript calls undefined.

    private static Map<String, String> convertJSONToMap(String descriptionJSONString) {
        if (descriptionJSONString == null) {
            return null;
        }
        try {
            JSONObject descriptionJSON = new JSONObject(descriptionJSONString);
            Iterator<String> keysIterator = descriptionJSON.keys();
            Map<String, String> materialsDescription = new HashMap<String, String>();
            while(keysIterator.hasNext()) {
                String key = keysIterator.next();
                materialsDescription.put(key, descriptionJSON.getString(key));
            }
            return materialsDescription;
        } catch (JSONException e) {
            throw new AmazonClientException("Unable to parse encryption materials description from metadata :" + e.getMessage());
        }

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        byte[] initVectorBytes = symmetricCipher.getIV();
        initVectorBytes = Base64.encodeBase64(initVectorBytes);
        metadata.addUserMetadata(Headers.CRYPTO_IV, new String(initVectorBytes));


        // Put the materials description into the object metadata as JSON
        JSONObject descriptionJSON = new JSONObject(materialsDescription);
        metadata.addUserMetadata(Headers.MATERIALS_DESCRIPTION, descriptionJSON.toString());
    }

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    /**
     * Returns a JSONObject representation of the instruction object.
     */
    private static JSONObject convertInstructionToJSONObject(EncryptionInstruction instruction) {
        JSONObject instructionJSON = new JSONObject();
        try {
            JSONObject materialsDescriptionJSON = new JSONObject(instruction.getMaterialsDescription());
            byte[] initVector = instruction.getSymmetricCipher().getIV();
            initVector = Base64.encodeBase64(initVector);
            byte[] encryptedKeyBytes = instruction.getEncryptedSymmetricKey();
            encryptedKeyBytes = Base64.encodeBase64(encryptedKeyBytes);


            instructionJSON.put(Headers.MATERIALS_DESCRIPTION, materialsDescriptionJSON.toString());
            instructionJSON.put(Headers.CRYPTO_KEY, new String(encryptedKeyBytes));
            instructionJSON.put(Headers.CRYPTO_IV, new String(initVector));


        } catch (JSONException e) {} // Keys are never null, so JSONException will never be thrown.
        return instructionJSON;

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     * Parses instruction data retrieved from S3 and returns a JSONObject representing the instruction
     */
    private static JSONObject parseJSONInstruction(S3Object instructionObject) {
        try {
            String instructionString = convertStreamToString(instructionObject.getObjectContent());
            return new JSONObject(instructionString);
        } catch (Exception e) {
            throw new AmazonClientException("Error parsing JSON instruction file: " + e.getMessage());
        }
    }

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        return true;
    }


    @Override
    public String toString() {
        return new JSONObject(this).toString();
    }

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                if (!messageBody.startsWith("{")) {
                    messageBody = new String(BinaryUtils.fromBase64(messageBody));
                }


                try {
                    JSONObject json = new JSONObject(messageBody);
                    String jsonMessage = json.getString("Message").replace("\\\"", "\"");


                    json = new JSONObject(jsonMessage);
                    String messageJobId = json.getString("JobId");
                    String messageStatus = json.getString("StatusMessage");


                    // Don't process this message if it wasn't the job we were looking for
                    if (!jobId.equals(messageJobId)) continue;


                    try {

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     *      preferred provider from Security.getProviders().
     * @return
     *      A non-null instruction object containing encryption information
     */
    public static EncryptionInstruction buildInstructionFromInstructionFile(S3Object instructionFile, EncryptionMaterialsProvider materialsProvider, Provider cryptoProvider) {
        JSONObject instructionJSON = parseJSONInstruction(instructionFile);
        try {
            // Get fields from instruction object
            byte[] encryptedSymmetricKeyBytes = instructionJSON.getString(Headers.CRYPTO_KEY).getBytes();
            byte[] initVectorBytes = instructionJSON.getString(Headers.CRYPTO_IV).getBytes();
            String materialsDescriptionString = instructionJSON.tryGetString(Headers.MATERIALS_DESCRIPTION);
            Map<String, String> materialsDescription = convertJSONToMap(materialsDescriptionString);


            // Decode from Base 64 to standard binary bytes
            encryptedSymmetricKeyBytes = Base64.decodeBase64(encryptedSymmetricKeyBytes);
            initVectorBytes = Base64.decodeBase64(initVectorBytes);

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     *      The instruction object to be stored in S3.
     * @return
     *      A put request to store the specified instruction object in S3.
     */
    public static PutObjectRequest createInstructionPutRequest(PutObjectRequest request, EncryptionInstruction instruction) {
        JSONObject instructionJSON = convertInstructionToJSONObject(instruction);
        byte[] instructionBytes = instructionJSON.toString().getBytes();
        InputStream instructionInputStream = new ByteArrayInputStream(instructionBytes);


        ObjectMetadata metadata = request.getMetadata();


        // Set the content-length of the upload

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        return request;
    }


    public static PutObjectRequest createInstructionPutRequest(String bucketName, String key, EncryptionInstruction instruction) {
        JSONObject instructionJSON = convertInstructionToJSONObject(instruction);
        byte[] instructionBytes = instructionJSON.toString().getBytes();
        InputStream instructionInputStream = new ByteArrayInputStream(instructionBytes);


        ObjectMetadata metadata = new ObjectMetadata();
        metadata.setContentLength(instructionBytes.length);
        metadata.addUserMetadata(Headers.CRYPTO_INSTRUCTION_FILE, "");

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    private static Map<String, String> convertJSONToMap(String descriptionJSONString) {
        if (descriptionJSONString == null) {
            return null;
        }
        try {
            JSONObject descriptionJSON = new JSONObject(descriptionJSONString);
            Iterator<String> keysIterator = descriptionJSON.keys();
            Map<String, String> materialsDescription = new HashMap<String, String>();
            while(keysIterator.hasNext()) {
                String key = keysIterator.next();
                materialsDescription.put(key, descriptionJSON.getString(key));
            }
            return materialsDescription;
        } catch (JSONException e) {
            throw new AmazonClientException("Unable to parse encryption materials description from metadata :" + e.getMessage());
        }

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