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• SerializationUtils.java

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org.mariuszgromada.math.mxparser.SerializationUtils Maven / Gradle / Ivy

/*
 * @(#)SerializationUtils.java        6.0.0    2024-05-19
 *
 * MathParser.org-mXparser DUAL LICENSE AGREEMENT as of date 2024-05-19
 * The most up-to-date license is available at the below link:
 * - https://mathparser.org/mxparser-license
 *
 * AUTHOR: Copyright 2010 - 2024 Mariusz Gromada - All rights reserved
 * PUBLISHER: INFIMA - https://payhip.com/infima
 *
 * SOFTWARE means source code and/or binary form and/or documentation.
 * PRODUCT: MathParser.org-mXparser SOFTWARE
 * LICENSE: DUAL LICENSE AGREEMENT
 *
 * BY INSTALLING, COPYING, OR OTHERWISE USING THE PRODUCT, YOU AGREE TO BE
 * BOUND BY ALL OF THE TERMS AND CONDITIONS OF THE DUAL LICENSE AGREEMENT.
 *
 * The AUTHOR & PUBLISHER provide the PRODUCT under the DUAL LICENSE AGREEMENT
 * model designed to meet the needs of both non-commercial use and commercial
 * use.
 *
 * NON-COMMERCIAL USE means any use or activity where a fee is not charged
 * and the purpose is not the sale of a good or service, and the use or
 * activity is not intended to produce a profit. Examples of NON-COMMERCIAL USE
 * include:
 *
 * 1. Non-commercial open-source software.
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 * 3. Non-commercial desktop software.
 * 4. Non-commercial web applications/solutions.
 * 5. Non-commercial use in research, scholarly and educational context.
 *
 * The above list is non-exhaustive and illustrative only.
 *
 * COMMERCIAL USE means any use or activity where a fee is charged or the
 * purpose is the sale of a good or service, or the use or activity is
 * intended to produce a profit. COMMERCIAL USE examples:
 *
 * 1. OEMs (Original Equipment Manufacturers).
 * 2. ISVs (Independent Software Vendors).
 * 3. VARs (Value Added Resellers).
 * 4. Other distributors that combine and distribute commercially licensed
 *    software.
 *
 * The above list is non-exhaustive and illustrative only.
 *
 * IN CASE YOU WANT TO USE THE PRODUCT COMMERCIALLY, YOU MUST PURCHASE THE
 * APPROPRIATE LICENSE FROM "INFIMA" ONLINE STORE, STORE ADDRESS:
 *
 * 1. https://mathparser.org/order-commercial-license
 * 2. https://payhip.com/infima
 *
 * NON-COMMERCIAL LICENSE
 *
 * Redistribution and use of the PRODUCT in source and/or binary forms,
 * with or without modification, are permitted provided that the following
 * conditions are met:
 *
 * 1. Redistributions of source code must retain the unmodified content of
 *    the entire MathParser.org-mXparser DUAL LICENSE AGREEMENT, including
 *    the definition of NON-COMMERCIAL USE, the definition of COMMERCIAL USE,
 *    the NON-COMMERCIAL LICENSE conditions, the COMMERCIAL LICENSE conditions,
 *    and the following DISCLAIMER.
 * 2. Redistributions in binary form must reproduce the entire content of
 *    MathParser.org-mXparser DUAL LICENSE AGREEMENT in the documentation
 *    and/or other materials provided with the distribution, including the
 *    definition of NON-COMMERCIAL USE, the definition of COMMERCIAL USE, the
 *    NON-COMMERCIAL LICENSE conditions, the COMMERCIAL LICENSE conditions,
 *    and the following DISCLAIMER.
 * 3. Any form of redistribution requires confirmation and signature of
 *    the NON-COMMERCIAL USE by successfully calling the method:
 *       License.iConfirmNonCommercialUse(...)
 *    The method call is used only internally for logging purposes, and
 *    there is no connection with other external services, and no data is
 *    sent or collected. The lack of a method call (or its successful call)
 *    does not affect the operation of the PRODUCT in any way. Please see
 *    the API documentation.
 *
 * COMMERCIAL LICENSE
 *
 *  1. Before purchasing a commercial license, the AUTHOR & PUBLISHER allow
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 *     perform integration tests, confirm the quality of the PRODUCT, and
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 *     (store address: https://mathparser.org/order-commercial-license or
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 *     conditions below, and you have acknowledged and understood the
 *     following DISCLAIMER, the AUTHOR & PUBLISHER grant you a nonexclusive
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 * 12. You may make copies of the PRODUCT for backup and archival purposes.
 * 13. Any form of redistribution requires confirmation and signature of
 *     the COMMERCIAL USE by successfully calling the method:
 *        License.iConfirmCommercialUse(...)
 *     The method call is used only internally for logging purposes, and
 *     there is no connection with other external services, and no data is
 *     sent or collected. The lack of a method call (or its successful call)
 *     does not affect the operation of the PRODUCT in any way. Please see
 *     the API documentation.
 * 14. The AUTHOR & PUBLISHER reserve all rights not expressly granted to
 *     you in this agreement.
 *
 * ADDITIONAL CLARIFICATION ON WORKSTATION
 *
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 * not use separate environments for testing, meaning you design, create,
 * test, and compile your final application on one environment. In this
 * case, you need a license for a single workstation.
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 * Additionally, one tester conducts tests in a separate environment.
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 * Additionally, five testers conduct tests in separate environments.
 * You use fifteen workstations in total, so you need a license for
 * up to twenty workstations.
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 * Example 4: Site License
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 * application using multiple environments. You have a large,
 * multi-disciplinary team involved in creating your solution. As your team
 * is growing and you want to avoid licensing limitations, the best choice
 * would be a site license.
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 * UPGRADE POLICY
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 *
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 * 1. COMMERCIAL LICENSE holders can install and use the updated version
 *    for bug fixes free of charge, i.e. if you have purchased a license
 *    for the [MAJOR].[MINOR] version (e.g., 5.0), you can freely install
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 * THIS PRODUCT IS PROVIDED BY THE AUTHOR & PUBLISHER "AS IS" AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS PRODUCT, EVEN IF ADVISED OF
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 * THE VIEWS AND CONCLUSIONS CONTAINED IN THE PRODUCT AND DOCUMENTATION ARE
 * THOSE OF THE AUTHORS AND SHOULD NOT BE INTERPRETED AS REPRESENTING
 * OFFICIAL POLICIES, EITHER EXPRESSED OR IMPLIED, OF THE AUTHOR OR PUBLISHER.
 *
 * CONTACT
 *
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 * - source code: https://github.com/mariuszgromada/MathParser.org-mXparser
 * - online store: https://mathparser.org/order-commercial-license
 * - online store: https://payhip.com/infima
 */
package org.mariuszgromada.math.mxparser;

import java.io.*;
import java.util.Base64;
/**
 * A utility class for simplified serialization and deserialization of parser objects (and not only).
 *
 * Important - using binary serialization you confirm that
 * you understand the security risks.
 *
 * WARNING: Deserializing data from an untrusted source can introduce
 * security vulnerabilities to your application. Depending on the settings
 * used during deserialization, untrusted data may be able to execute
 * arbitrary code or cause a denial of service attack. Untrusted data
 * can come from over the network from an untrusted source
 * (e.g. any network client), or it can be manipulated/tampered by
 * an intermediary while in transit over an unauthenticated connection,
 * or from local storage where it may have been compromised/tampered,
 * or from many other sources. MathParser.org-mXparser does not provide
 * any means to authenticate data or secure it from tampering.
 * Use an appropriate data authentication method before deserializing.
 * Be very mindful of these attack scenarios; many projects and companies
 * and users of serialization libraries in general have been bitten by
 * untrusted deserialization of user data in the past.
 *
 * @author         Mariusz Gromada

 *                 MathParser.org - mXparser project page

 *                 mXparser on GitHub

 *                 INFIMA place to purchase a commercial MathParser.org-mXparser software license

 *                 [email protected]

 *                 ScalarMath.org - a powerful math engine and math scripting language

 *                 Scalar Lite

 *                 Scalar Pro

 *                 MathSpace.pl

 *
 * @version        5.2.0
 *
 * @see Expression
 * @see Argument
 * @see RecursiveArgument
 * @see Constant
 * @see Function
 */
public final class SerializationUtils {
    private static boolean binarySerializationEnabled = false;
    /**
     * Enables binary serialization done by the SerializationUtils.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     */
    public static void enableBinarySerializationIamAwareOfSecurityRisks() {
        binarySerializationEnabled = true;
        lastOperationWasSuccessful = true;
        logLastOperationMessage(StringModel.STRING_RESOURCES.BINARY_SERIALIZATION_ENABLED);
    }
    /**
     * Disables binary serialization done by the SerializationUtils.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     */
    public static void disableBinarySerialization() {
        binarySerializationEnabled = false;
        lastOperationWasSuccessful = true;
        logLastOperationMessage(StringModel.STRING_RESOURCES.BINARY_SERIALIZATION_DISABLED);
    }
    /**
     * Returns whether binary serialization done by SerializationUtils is enabled by.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     *
     * @return True if enabled, false if disabled.
     */
    public static boolean isBinarySerializationEnabled() {
        return binarySerializationEnabled;
    }
    private static boolean lastOperationWasSuccessful = false;
    private static String lastOperationMessage = StringInvariant.EMPTY;
    /**
     * Information whether the last ordered operation under
     * any serialization or deserialization method was correctly
     * performed.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     *
     * @return true if the operation was performed correctly, otherwise false.
     */
    public static boolean checkLastOperationWasSuccessful() {
        return lastOperationWasSuccessful;
    }
    /**
     * Text information about the last operation performed
     * by any serialization or deserialization method.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     *
     * @return The content of the error in case of failure, information
     * about the operation performed in case of success.
     */
    public static String getLastOperationMessage() {
        return lastOperationMessage;
    }
    private static void logLastOperationMessage(String message) {
        lastOperationMessage = message + StringInvariant.NEW_LINE + StringModel.STRING_RESOURCES.WARNING_BINARY_SERIALIZATION_SECURITY_RISKS;
    }
    /**
     * Serialization of an object to byte data.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     *
     * @param objectToSerialize The object for which serialization is possible.
     *
     * @return The data object if the operation was successful, otherwise it returns null.
     * @see #getLastOperationMessage()
     * @see #checkLastOperationWasSuccessful()
     */
    public static byte[] serializeToBytes(Serializable objectToSerialize) {
        lastOperationWasSuccessful = false;
        if (!binarySerializationEnabled) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.BINARY_SERIALIZATION_DISABLED);
            return null;
        }
        if (objectToSerialize == null) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.NULL_OBJECT_PROVIDED);
            return null;
        }
        try {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            ObjectOutputStream oos = null;
            oos = new ObjectOutputStream(baos);
            synchronized (objectToSerialize) {
                oos.writeObject(objectToSerialize);
                oos.close();
            }
            logLastOperationMessage(StringModel.STRING_RESOURCES.SERIALIZATION_PERFORMED + StringInvariant.SPACE + getSimpleName(objectToSerialize));
            lastOperationWasSuccessful = true;
            return baos.toByteArray();
        } catch (Exception e) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.EXCEPTION + StringInvariant.COLON_SPACE + getSimpleName(e) + StringInvariant.COLON_SPACE + e.getMessage());
            return null;
        }
    }
    /**
     * Serialization of an object to String data.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     *
     * @param objectToSerialize The object for which serialization is possible.
     *
     * @return The data string if the operation was successful, otherwise it returns null.
     * @see #getLastOperationMessage()
     * @see #checkLastOperationWasSuccessful()
     */
    public static String serializeToString(Serializable objectToSerialize) {
        lastOperationWasSuccessful = false;
        byte[] data = serializeToBytes(objectToSerialize);
        if (data == null) return null;
        return Base64.getEncoder().encodeToString(data);
    }
    /**
     * Serialization of an object to a file.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     *
     * @param objectToSerialize The object for which serialization is possible.
     * @param filePath  File path
     *
     * @return true if the operation was successful, otherwise it returns false.
     * @see #getLastOperationMessage()
     * @see #checkLastOperationWasSuccessful()
     */
    public static boolean serializeToFile(Serializable objectToSerialize, String filePath) {
        lastOperationWasSuccessful = false;
        if (!binarySerializationEnabled) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.BINARY_SERIALIZATION_DISABLED);
            return false;
        }
        if (filePath == null) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.NULL_FILE_PATH_PROVIDED);
            return false;
        }
        if (filePath.length() == 0) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.FILE_PATH_ZERO_LENGTH_PROVIDED);
            return false;
        }
        if (objectToSerialize == null) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.NULL_OBJECT_PROVIDED);
            return false;
        }
        File file = new File(filePath);
        try {
            FileOutputStream fos = new FileOutputStream(file);
            ObjectOutputStream oos = new ObjectOutputStream(fos);
            synchronized (objectToSerialize) {
                oos.writeObject(objectToSerialize);
                oos.close();
            }
            logLastOperationMessage(StringModel.STRING_RESOURCES.SERIALIZATION_PERFORMED + StringInvariant.SPACE + getSimpleName(objectToSerialize) + StringInvariant.COLON_SPACE + filePath);
            lastOperationWasSuccessful = true;
            return true;
        } catch (Exception e) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.EXCEPTION + StringInvariant.COLON_SPACE + getSimpleName(e) + StringInvariant.COLON_SPACE + e.getMessage());
            return false;
        }
    }
    /**
     * Deserializes an object from byte data.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     *
     * @param data Data object.
     * @param  Resulting class type.
     *
     * @return The deserialized object if operation was successful, otherwise it returns null.
     */
    public static  T deserializeFromBytes(byte[] data) {
        lastOperationWasSuccessful = false;
        if (!binarySerializationEnabled) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.BINARY_SERIALIZATION_DISABLED);
            return null;
        }
        if (data == null) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.NULL_DATA_PROVIDED);
            return null;
        }
        try {
            ByteArrayInputStream bais = new ByteArrayInputStream(data);
            ObjectInputStream ois = new ObjectInputStream(bais);
            @SuppressWarnings("unchecked")
            T deserializedObject = (T) ois.readObject();
            ois.close();
            lastOperationWasSuccessful = true;
            logLastOperationMessage(StringModel.STRING_RESOURCES.DESERIALIZATION_PERFORMED + StringInvariant.SPACE + getSimpleName(deserializedObject));
            return deserializedObject;
        } catch (Exception e) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.EXCEPTION + StringInvariant.COLON_SPACE + getSimpleName(e) + StringInvariant.COLON_SPACE + e.getMessage());
            return null;
        }
    }
    /**
     * Deserializes an object from string data.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     *
     * @param data Data object.
     * @param  Resulting class type.
     *
     * @return The deserialized object if operation was successful, otherwise it returns null.
     */
    public static  T deserializeFromString(String data) {
        lastOperationWasSuccessful = false;
        if (!binarySerializationEnabled) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.BINARY_SERIALIZATION_DISABLED);
            return null;
        }
        if (data == null) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.NULL_DATA_PROVIDED);
            return null;
        }
        return deserializeFromBytes(Base64.getDecoder().decode(data));
    }
    /**
     * Deserializes an object from byte data.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     *
     * @param filePath File path.
     * @param  Resulting class type.
     *
     * @return The deserialized object if operation was successful, otherwise it returns null.
     */
    public static  T deserializeFromFile(String filePath) {
        lastOperationWasSuccessful = false;
        if (!binarySerializationEnabled) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.BINARY_SERIALIZATION_DISABLED);
            return null;
        }
        if (filePath == null) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.NULL_FILE_PATH_PROVIDED);
            return null;
        }
        if (filePath.length() == 0) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.FILE_PATH_ZERO_LENGTH_PROVIDED);
            return null;
        }
        File file = new File(filePath);
        if (!file.exists()) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.FILE_PATH_NOT_EXISTS + StringInvariant.SPACE + filePath);
            return null;
        }
        if (!file.isFile()) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.FILE_PATH_IS_NOT_A_FILE + StringInvariant.SPACE + filePath);
            return null;
        }
        try {
            FileInputStream fis = new FileInputStream(file);
            ObjectInputStream ois = new ObjectInputStream(fis);
            @SuppressWarnings("unchecked")
            T deserializedObject = (T) ois.readObject();
            ois.close();
            lastOperationWasSuccessful = true;
            logLastOperationMessage(StringModel.STRING_RESOURCES.DESERIALIZATION_PERFORMED + StringInvariant.SPACE + getSimpleName(deserializedObject) + StringInvariant.COLON_SPACE + filePath);
            return deserializedObject;
        } catch (Exception e) {
            logLastOperationMessage(StringModel.STRING_RESOURCES.EXCEPTION + StringInvariant.COLON_SPACE + getSimpleName(e) + StringInvariant.COLON_SPACE + e.getMessage());
            return null;
        }
    }
    private static String getSimpleName(Object obj) {
        if (obj == null)
            return "";
        else
            return obj.getClass().getSimpleName();
    }
    /**
     * Unique serialization UID based on library version and class id.
     *
     * Important - using binary serialization you confirm that
     * you understand the security risks.
     *
     * WARNING: Deserializing data from an untrusted source can introduce
     * security vulnerabilities to your application. Depending on the settings
     * used during deserialization, untrusted data may be able to execute
     * arbitrary code or cause a denial of service attack. Untrusted data
     * can come from over the network from an untrusted source
     * (e.g. any network client), or it can be manipulated/tampered by
     * an intermediary while in transit over an unauthenticated connection,
     * or from local storage where it may have been compromised/tampered,
     * or from many other sources. MathParser.org-mXparser does not provide
     * any means to authenticate data or secure it from tampering.
     * Use an appropriate data authentication method before deserializing.
     * Be very mindful of these attack scenarios; many projects and companies
     * and users of serialization libraries in general have been bitten by
     * untrusted deserialization of user data in the past.
     *
     * @param classId Class id
     *
     * @return The digits from the right 0 the first two digits are the class id,
     * the digits 3 and 4 are the parser version in the PATCH range,
     * the digits 5 and 6 are the parser version in the MINOR range,
     * the digits 7 and 8 are the parser version in the MAJOR range.
     */
    public static long getSerialVersionUID(int classId) {
        return	1000000L * (long) mXparser.VERSION_MAJOR
                + 10000L * (long) mXparser.VERSION_MINOR
                + 100L * (long) mXparser.VERSION_PATCH
                + 1L * (long) classId
                ;
    }
}