Add project and libra and more

.gitignore

@@ -0,0 +1,33 @@
+HELP.md
+.gradle
+build/
+!gradle/wrapper/gradle-wrapper.jar
+!**/src/main/**
+!**/src/test/**
+gradle.properties
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/

README.md

@@ -0,0 +1,4 @@
+### CUBETIQ Commom Utils Module
+- [x] Utils for Java and Kotlin
+- [x] Custom Extension for Kotlin
+- [ ] More...

build.gradle

@@ -0,0 +1,48 @@
+plugins {
+    id 'java'
+    id 'org.jetbrains.kotlin.jvm' version '1.3.72'
+    id 'maven'
+}
+
+group 'com.cubetiqs'
+version '1.0-SNAPSHOT'
+
+repositories {
+    mavenCentral()
+    maven {
+        url "https://oss-internal.cubetiqs.com/repository/maven-public/"
+    }
+}
+
+dependencies {
+    implementation project(':cubetiq-parent')
+    implementation project(':cubetiq-logging')
+
+    // required by :cubetiq-logging module
+    implementation 'org.apache.logging.log4j:log4j-core:2.13.3'
+    implementation 'org.apache.commons:commons-text:1.8'
+
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
+
+    testCompile group: 'junit', name: 'junit', version: '4.12'
+}
+
+compileKotlin {
+    kotlinOptions.jvmTarget = "1.8"
+}
+compileTestKotlin {
+    kotlinOptions.jvmTarget = "1.8"
+}
+
+uploadArchives {
+    repositories {
+        mavenDeployer {
+            repository(url: "${nexusUrl}/repository/maven-releases/") {
+                authentication(userName: nexusUsername, password: nexusPassword)
+            }
+            snapshotRepository(url: "${nexusUrl}/repository/maven-snapshots") {
+                authentication(userName: nexusUsername, password: nexusPassword)
+            }
+        }
+    }
+}

gradle.properties.sample

@@ -0,0 +1,3 @@
+nexusUrl=https://oss-internal.cubetiqs.com
+nexusUsername=user
+nexusPassword=pass

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,10 @@
+#Mon Jun 08 15:30:03 ICT 2020
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.4.1-all.zip
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+
+nexusUrl=https://oss-internal.cubetiqs.com
+nexusUsername=cubetiq
+nexusPassword=cube17tiq

gradlew

@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,104 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

scripts/push

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+#!/bin/bash
+
+git push origin master
+git push github master
+

scripts/upload

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+gradle upload

settings.gradle

@@ -0,0 +1 @@
+rootProject.name = 'cubetiq-common-utils'

src/main/java/com/cubetiqs/util/MathUtils.java

@@ -0,0 +1,49 @@
+package com.cubetiqs.util;
+
+import org.jetbrains.annotations.NotNull;
+
+import java.math.RoundingMode;
+
+/**
+ * Math Libra helper
+ *
+ * @author sombochea
+ * @since 1.0
+ */
+public final class MathUtils {
+    /**
+     * Math Float Round for Double.
+     * Example: 9.999999 ... n => 10
+     * 9.99 => 9.99
+     */
+    public static Double fround(Number value, int precision, RoundingMode roundingMode) {
+        if (StringUtils.isNull(value)) {
+            return 0D;
+        }
+        if (StringUtils.isNull(roundingMode)) {
+            roundingMode = RoundingMode.HALF_DOWN;
+        }
+        return ParserUtils.toDouble(NumberUtils.toDecimalPrecision(value, precision, roundingMode));
+    }
+
+    public static Double getPrecisionValue(Number value) {
+        if (StringUtils.isNull(value)) {
+            return 0D;
+        }
+
+        return ParserUtils.toDouble(value) - ParserUtils.toInt(value);
+    }
+
+    @NotNull
+    public static Double minus(Number value1, Number value2) {
+        if (StringUtils.isNull(value1)) {
+            return 0D;
+        }
+
+        if (StringUtils.isNull(value2)) {
+            return 0D;
+        }
+
+        return ParserUtils.toDouble(value1) - ParserUtils.toDouble(value2);
+    }
+}

src/main/java/com/cubetiqs/util/NumberUtils.java

@@ -0,0 +1,49 @@
+package com.cubetiqs.util;
+
+import java.math.RoundingMode;
+import java.text.DecimalFormat;
+
+/**
+ * Number Libra helper
+ *
+ * @author sombochea
+ * @since 1.0
+ */
+public final class NumberUtils {
+    private static final String DECIMAL_PATTERN = "#.##";
+    private static final String ROUNDING_DECIMAL_PATTERN = "##0";
+
+    public static String toStringDecimal(Number value, String pattern) {
+        if (pattern == null || pattern.isEmpty()) {
+            pattern = DECIMAL_PATTERN;
+        }
+        return new DecimalFormat(pattern).format(value);
+    }
+
+    public static String toDecimalPrecision(Number value, int precision, RoundingMode roundingMode) {
+        if (value == null) {
+            return null;
+        }
+
+        StringBuilder pattern = new StringBuilder(ROUNDING_DECIMAL_PATTERN);
+
+        if (precision > 0) {
+            pattern.append(".");
+        }
+
+        while (precision > 0) {
+            pattern.append("0");
+            precision--;
+        }
+
+        DecimalFormat decimalFormat = new DecimalFormat(pattern.toString());
+
+        if (roundingMode == null) {
+            roundingMode = RoundingMode.HALF_EVEN;
+        }
+
+        decimalFormat.setRoundingMode(roundingMode);
+
+        return decimalFormat.format(value);
+    }
+}

src/main/java/com/cubetiqs/util/ParserUtils.java

@@ -0,0 +1,81 @@
+package com.cubetiqs.util;
+
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Parser Libra helper
+ *
+ * @author sombochea
+ * @see Integer
+ * @see Double
+ * @see Number
+ * @see StringUtils
+ * @since 1.o
+ */
+public final class ParserUtils {
+    @NotNull
+    public static Integer toInt(String value) {
+        if (value == null || value.isEmpty()) {
+            return 0;
+        }
+        return Integer.parseInt(value);
+    }
+
+    public static Integer toInt(String value, Integer fallback) {
+        if (StringUtils.isNullOrEmpty(value)) {
+            return fallback;
+        }
+        return Integer.parseInt(value);
+    }
+
+    @NotNull
+    public static Integer toInt(Number value) {
+        if (StringUtils.isNull(value)) {
+            return 0;
+        }
+
+        return Integer.parseInt(value.toString());
+    }
+
+    public static Integer toInt(Number value, Integer fallback) {
+        if (StringUtils.isNull(value)) {
+            return fallback;
+        }
+
+        return Integer.parseInt(value.toString());
+    }
+
+    @NotNull
+    public static Double toDouble(String value) {
+        if (StringUtils.isNull(value)) {
+            return 0D;
+        }
+
+        return Double.parseDouble(value);
+    }
+
+    public static Double toDouble(String value, Double fallback) {
+        if (StringUtils.isNull(value)) {
+            return fallback;
+        }
+
+        return Double.parseDouble(value);
+    }
+
+    @NotNull
+    public static Double toDouble(Number value) {
+        if (StringUtils.isNull(value)) {
+            return 0D;
+        }
+
+        return Double.parseDouble(value.toString());
+    }
+
+    public static Double toDouble(Number value, Double fallback) {
+        if (StringUtils.isNull(value)) {
+            return fallback;
+        }
+
+        return Double.parseDouble(value.toString());
+    }
+}

src/main/java/com/cubetiqs/util/StringUtils.java

@@ -0,0 +1,384 @@
+package com.cubetiqs.util;
+
+import com.cubetiqs.logging.Log;
+import org.apache.commons.text.StringEscapeUtils;
+import org.apache.logging.log4j.Logger;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.*;
+import java.util.function.Function;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+
+import static java.util.regex.Pattern.compile;
+
+/**
+ * String Utilities and Libra helper
+ *
+ * @author sombochea
+ * @see Pattern
+ * @see Matcher
+ * @see Collectors
+ * @see Function
+ * @since 1.0
+ */
+public final class StringUtils {
+    private static final String EMPTY_STRING = "";
+    private static final String ALPHA_REGEX = "^[a-zA-Z]+$";
+    private static final String NUMERIC_REGEX = "^[0-9]+$";
+    private static final String ALPHA_NUMERIC_REGEX = "^[a-zA-Z0-9]+$";
+    private static final String ALPHA_NUMERIC_SPACE_REGEX = "^[a-zA-Z0-9 ]+$";
+    private static final Logger logger = Log.getLogger(StringUtils.class);
+
+    public StringUtils() {
+        // nothing to do here
+    }
+
+    public static boolean isNull(Object value) {
+        return value == null;
+    }
+
+    public static boolean isNotNull(Object value) {
+        return !isNull(value);
+    }
+
+    public static boolean isEmpty(String value) {
+        return value.length() == 0;
+    }
+
+    public static String ifEmptyNull(String value) {
+        if (!isNull(value) && isEmpty(value)) {
+            return null;
+        }
+        return value;
+    }
+
+    public static String ifNullEmpty(String value) {
+        if (isNull(value)) {
+            return EMPTY_STRING;
+        }
+        return value;
+    }
+
+    public static boolean isNullOrEmpty(String value) {
+        return isNull(value) || isEmpty(value);
+    }
+
+    public static String getOrDefault(String text, String fallback) {
+        if (isNull(text) || isEmpty(text)) {
+            return fallback;
+        }
+        return text;
+    }
+
+    @NotNull
+    public static String getOrEmpty(String text) {
+        return getOrDefault(text, EMPTY_STRING);
+    }
+
+    public static String fromSpaceToUnderScoreAndUpperCase(String value) {
+        if (isNull(value)) {
+            return null;
+        }
+        return value.replace(' ', '_').toUpperCase();
+    }
+
+    public static boolean isAllCaps(String value) {
+        if (isNull(value)) {
+            return false;
+        }
+
+        return value.matches(".*[a-z].*");
+    }
+
+    public static boolean regex(String value, String regex) {
+        if (isNull(value)) {
+            return false;
+        }
+
+        if (isNull(regex)) {
+            return false;
+        }
+
+        Pattern pattern = Pattern.compile(regex);
+        Matcher matcher = pattern.matcher(value);
+        return matcher.matches();
+    }
+
+    public boolean isAlpha(String value) {
+        return regex(value, ALPHA_REGEX);
+    }
+
+    public boolean notAlpha(String value) {
+        return !isAlpha(value);
+    }
+
+    public boolean isNumeric(String value) {
+        return regex(value, NUMERIC_REGEX);
+    }
+
+    public boolean notNumeric(String value) {
+        return !isNumeric(value);
+    }
+
+    public boolean isAlphaNumeric(String value) {
+        return regex(value, ALPHA_NUMERIC_REGEX);
+    }
+
+    public boolean isAlphaNumeric(String value, boolean space) {
+        String regex = ALPHA_NUMERIC_REGEX;
+        if (space) {
+            regex = ALPHA_NUMERIC_SPACE_REGEX;
+        }
+        return regex(value, regex);
+    }
+
+    public boolean isAlphaNumeric(String value, CharSequence sequence) {
+        String regex = ALPHA_NUMERIC_REGEX;
+        if (isNotNull(sequence)) {
+            regex = "^[a-zA-Z0-9" + sequence + "]+$";
+        }
+        return regex(value, regex);
+    }
+
+    public boolean isSymbol(String value) {
+        return notAlpha(value) && notNumeric(value);
+    }
+
+    public static List<String> splitting(String value, char splitter) {
+        if (!isEmpty(value)) {
+            return Arrays.asList(value.trim().split("\\s*" + splitter + "\\s*"));
+        }
+
+        return new ArrayList<>();
+    }
+
+    public static List<String> splitting(String data, String regex) {
+        if (!isEmpty(data)) {
+            return Arrays.asList(data.trim().split(regex));
+        }
+
+        return new ArrayList<>();
+    }
+
+    public static List<String> splitFields(String data, String delimiters) {
+        if (!isEmpty(data)) {
+            return Arrays.stream(data.split("[" + delimiters + "]"))
+                    .map(String::trim)
+                    .collect(Collectors.toList());
+        }
+
+        return new ArrayList<>();
+    }
+
+    public static Map<String, String> mapFields(String fields) {
+        List<String> rawFields = splitFields(fields, ";");
+        Map<String, String> finalFields = new Hashtable<>();
+        rawFields.forEach(
+                i -> {
+                    List<String> subFields = splitting(i, ':');
+                    if (subFields.size() > 0) {
+                        if (splitting(subFields.get(0), ',').size() > 1) {
+                            // more logic
+                            finalFields.put("default", i.trim());
+                        } else {
+                            subFields.forEach(j -> finalFields.put(subFields.get(0).trim(), j.trim()));
+                        }
+                    }
+                });
+
+        return finalFields;
+    }
+
+    public static Set<String> splittingAsHashSet(String data, char splitter) {
+        return new HashSet<>(splitting(data, splitter));
+    }
+
+    public static String implode(List<String> data, CharSequence separator) {
+        return String.join(separator, data);
+    }
+
+    public static String implode(String[] data, CharSequence separator) {
+        return String.join(separator, data);
+    }
+
+    public static String[] explode(String data, String splitter) {
+        return data.split(splitter);
+    }
+
+    public static String concat(String[] data) {
+
+        StringBuilder ext = new StringBuilder();
+        for (String a : data) {
+            ext.append(a);
+        }
+
+        return ext.toString();
+    }
+
+    /**
+     * Replacer with Template and Separator.
+     *
+     * @param template    String
+     * @param replacement Map<String, Object>
+     * @param separator   String.
+     * @return String
+     */
+    public static String replacer(
+            String template, Map<String, Object> replacement, CharSequence separator) {
+        String patternString =
+                separator + "(" + StringUtils.join(replacement.keySet(), '|') + ")" + separator;
+        Pattern pattern = compile(patternString);
+        Matcher matcher = pattern.matcher(template);
+        StringBuffer stringBuffer = new StringBuffer();
+        while (matcher.find()) {
+            try {
+                matcher.appendReplacement(stringBuffer, "\\" + replacement.get(matcher.group(1)) + "");
+            } catch (Exception ex) {
+                logger.error(ex.getMessage());
+            }
+        }
+        matcher.appendTail(stringBuffer);
+
+        return stringBuffer + "";
+    }
+
+    /**
+     * Replacer with Template.
+     *
+     * @param template     String
+     * @param replaceKey   String | Key to replace value with
+     * @param replaceValue String | Value to replace.
+     * @return String
+     */
+    public static String replacer(String template, String replaceKey, Object replaceValue) {
+        Map<String, Object> replacement = new Hashtable<>();
+        replacement.put(replaceKey, replaceValue);
+        return replacer(template, replacement);
+    }
+
+    /**
+     * Replacer with Template.
+     *
+     * @param template    String
+     * @param replacement Map<String, Object>
+     * @return String
+     */
+    public static String replacer(String template, Map<String, Object> replacement) {
+        return replacer(template, replacement, "%");
+    }
+
+    /**
+     * Find Specific Values by {want} delimiter.
+     *
+     * @param template String
+     * @param sequence CharSequence
+     * @return List of String.
+     */
+    public static List<String> findValues(String template, CharSequence sequence) {
+        return findValues(template, sequence, sequence);
+    }
+
+    /**
+     * Find Specific Values by {want} delimiter.
+     *
+     * @param template String
+     * @param sequenceStart CharSequence
+     * @param sequenceEnd CharSequence
+     * @return List of String.
+     */
+    public static List<String> findValues(String template, CharSequence sequenceStart, CharSequence sequenceEnd) {
+        List<String> data = new ArrayList<>();
+        Pattern pattern = compile(escape4Regex(sequenceStart) + "(.*?)" + escape4Regex(sequenceEnd));
+        Matcher matcher = pattern.matcher(template);
+        while (matcher.find()) {
+            data.add(matcher.group(1));
+        }
+
+        return data;
+    }
+
+    public static String escape4Regex(CharSequence sequence) {
+        return escape4Regex(sequence.toString());
+    }
+
+    public static String escape4Regex(String text) {
+        return text.replaceAll("([\\\\+*?\\[\\](){}|.^$])", "\\\\$1");
+    }
+
+    public static String join(String[] array) {
+        if (isNull(array)) {
+            return EMPTY_STRING;
+        }
+
+        return join(Arrays.asList(array));
+    }
+
+
+    public static void join(String[] array, char separator, StringBuilder sb) {
+        if (isNull(array)) {
+            return;
+        }
+
+        join(Arrays.asList(array), separator, sb);
+    }
+
+
+    public static String join(Collection<String> collection) {
+        return join(collection, ',');
+    }
+
+
+    public static String join(Collection<String> collection, char separator) {
+        if (isNull(collection) || collection.isEmpty()) {
+            return EMPTY_STRING;
+        }
+
+        StringBuilder result = new StringBuilder();
+        join(collection, separator, result);
+
+        return result.toString();
+    }
+
+
+    public static void join(Iterable<String> iterable, char separator, StringBuilder sb) {
+        join(iterable, separator, (x) -> x, sb);
+    }
+
+    public static <T> void join(T[] array, char separator, Function<T, String> function, StringBuilder sb) {
+        if (isNull(array)) {
+            return;
+        }
+
+        join(Arrays.asList(array), separator, function, sb);
+    }
+
+
+    public static <T> void join(Iterable<T> iterable, char separator, Function<T, String> function, StringBuilder sb) {
+        if (isNull(iterable)) {
+            return;
+        }
+        boolean first = true;
+        for (T value : iterable) {
+            if (first) {
+                first = false;
+            } else {
+                sb.append(separator);
+            }
+            sb.append(function.apply(value));
+        }
+    }
+
+    /**
+     * Text is equal or not
+     * Without case-sensitive
+     *
+     * @param s1 String
+     * @param s2 String
+     * @return boolean
+     */
+    public static boolean isEquals(String s1, String s2) {
+        return (s1 + "".toUpperCase()).equals(s2 + "".toUpperCase());
+    }
+}

src/main/kotlin/com/cubetiqs/util/StringUtils.kt

@@ -0,0 +1,18 @@
+package com.cubetiqs.util
+
+private val charPool: List<Char> = ('a'..'z') + ('A'..'Z') + ('0'..'9')
+
+fun randomStringFromLength(length: Int = 2, separator: String = ""): String {
+    return (1..length)
+        .map { kotlin.random.Random.nextInt(0, charPool.size) }
+        .map(charPool::get)
+        .joinToString(separator)
+}
+
+fun String?.randomString(): String {
+    return randomStringFromLength(this?.length ?: 2)
+}
+
+fun Int?.randomString(): String {
+    return randomStringFromLength(this ?: 2)
+}

src/main/kotlin/com/cubetiqs/util/base64/ImageBase64Utils.kt

@@ -0,0 +1,61 @@
+package com.cubetiqs.util.base64
+
+import com.cubetiqs.exception.RIOException
+import java.awt.image.BufferedImage
+import java.io.ByteArrayInputStream
+import java.io.ByteArrayOutputStream
+import java.io.IOException
+import java.util.Base64
+import javax.imageio.ImageIO
+import javax.xml.bind.DatatypeConverter
+
+/**
+ * Image Base64 Libra helper
+ *
+ * @author sombochea
+ * @since 1.0
+ */
+object ImageBase64Utils {
+    private fun base64Trimmer(base64String: String): String? {
+        val data: List<String> = try {
+            base64String.split(",")
+        } catch (ex: Exception) {
+            listOf()
+        }
+        return if (data.size > 1) {
+            data[1]
+        } else {
+            base64String
+        }
+    }
+
+    @Throws(RIOException::class)
+    @JvmStatic
+    fun toImageBytes(base64String: String): ByteArray {
+        var image: BufferedImage? = null
+        try {
+            ByteArrayInputStream(
+                Base64.getMimeDecoder().decode(base64Trimmer(base64String))
+            ).use { inputStream -> image = ImageIO.read(inputStream) }
+        } catch (ex: IOException) {
+            ex.printStackTrace()
+            throw RIOException(ex)
+        }
+        try {
+            ByteArrayOutputStream().use { outputStream ->
+                ImageIO.write(image, "png", outputStream)
+                return outputStream.toByteArray()
+            }
+        } catch (ex: IOException) {
+            ex.printStackTrace()
+            throw RIOException(ex)
+        }
+    }
+
+    @JvmStatic
+    fun toBytes(base64String: String, useTrimmer: Boolean): ByteArray {
+        return if (useTrimmer) DatatypeConverter.parseBase64Binary(base64Trimmer(base64String)) else DatatypeConverter.parseBase64Binary(
+            base64String
+        )
+    }
+}

src/main/kotlin/com/cubetiqs/util/extension/StringExtension.kt

@@ -0,0 +1,6 @@
+package com.cubetiqs.util.extension
+
+import com.cubetiqs.util.StringUtils
+
+fun String?.getOrDefault(fallback: String? = null): String = StringUtils.getOrDefault(this, fallback)
+fun String?.getOrEmpty(): String = StringUtils.getOrEmpty(this)

src/main/resources/log4j2.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="WARN">
+    <Appenders>
+        <Console name="Console" target="SYSTEM_OUT">
+            <PatternLayout pattern="%d{HH:mm:ss} [%t] %-5level %logger{36} - %msg%n"/>
+        </Console>
+    </Appenders>
+    <Loggers>
+        <Root level="error">
+            <AppenderRef ref="Console"/>
+        </Root>
+    </Loggers>
+</Configuration>

src/test/java/com/cubetiqs/util/test/StringHelperTests.java

@@ -0,0 +1,13 @@
+package com.cubetiqs.util.test;
+
+import com.cubetiqs.util.StringUtils;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class StringHelperTests {
+    @Test
+    public void getOrEmptyString() {
+        Assert.assertEquals("Hello", StringUtils.getOrEmpty("Hello"));
+        Assert.assertEquals("", StringUtils.getOrEmpty(null));
+    }
+}

src/test/kotlin/StringUtilsTests.kt

@@ -0,0 +1,22 @@
+package com.cubetiqs.util.test
+
+import com.cubetiqs.logging.Log
+import com.cubetiqs.util.randomString
+import com.cubetiqs.util.randomStringFromLength
+import org.junit.Assert
+import org.junit.Test
+
+class StringUtilsTests {
+    val logger = Log.getLogger(javaClass)
+
+    @Test
+    fun testRandomString() {
+        val rand = "ANC".randomString()
+        logger.fatal("String random is {}", rand)
+        Assert.assertNotNull("string is null", rand)
+
+        val rand2 = randomStringFromLength(10)
+        logger.error("String random is {}", rand2)
+        Assert.assertTrue("is not true", rand2.length == 10)
+    }
+}