diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100755
index 0000000..13c4629
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,49 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ 1.8
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100755
index 0000000..c055b25
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,10 @@
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/.idea/runConfigurations.xml b/.idea/runConfigurations.xml
new file mode 100755
index 0000000..7f68460
--- /dev/null
+++ b/.idea/runConfigurations.xml
@@ -0,0 +1,12 @@
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/app/.gitignore b/app/.gitignore
new file mode 100755
index 0000000..3543521
--- /dev/null
+++ b/app/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/app/build.gradle b/app/build.gradle
new file mode 100755
index 0000000..7973153
--- /dev/null
+++ b/app/build.gradle
@@ -0,0 +1,30 @@
+apply plugin: 'com.android.application'
+
+android {
+ compileSdkVersion 26
+ defaultConfig {
+ applicationId "com.laurentiusimionescu.validator"
+ minSdkVersion 21
+ targetSdkVersion 26
+ versionCode 1
+ versionName "1.0"
+ testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+ }
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+ }
+ }
+}
+
+dependencies {
+ implementation fileTree(dir: 'libs', include: ['*.jar'])
+ implementation 'com.android.support:appcompat-v7:26.1.0'
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'com.android.support.test:runner:1.0.1'
+ androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+
+ compile project(':validator')
+
+}
diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
new file mode 100755
index 0000000..6e7ffa9
--- /dev/null
+++ b/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..ccad196
--- /dev/null
+++ b/app/src/main/AndroidManifest.xml
@@ -0,0 +1 @@
+
diff --git a/app/src/test/java/com/laurentiusimionescu/validator/ValidatorTest.java b/app/src/test/java/com/laurentiusimionescu/validator/ValidatorTest.java
new file mode 100755
index 0000000..a451e98
--- /dev/null
+++ b/app/src/test/java/com/laurentiusimionescu/validator/ValidatorTest.java
@@ -0,0 +1,121 @@
+package com.laurentiusimionescu.validator;
+
+import org.junit.Test;
+
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertTrue;
+
+public class ValidatorTest {
+
+ @Test
+ public void testNullString() {
+
+ Example example = new Example();
+
+ assertFalse(ValidationProcessor.isValid(example));
+ }
+
+ @Test
+ public void testEmptyString() {
+
+ Example example = new Example();
+
+ assertFalse(ValidationProcessor.isValid(example));
+ }
+
+
+ @Test
+ public void testAllGood() {
+ Example example = new Example();
+ example.dog = "Dog";
+ example.boo = 12;
+ example.innerClass = new InnerClass();
+ example.innerClass.innerString = "i1";
+
+ example.innerClass3 = new InnerClass();
+ example.innerClass3.innerString = "i3";
+
+ example.castClass = new CastClass();
+ example.castClass.castClass = new CastClass();
+
+
+ assertTrue(ValidationProcessor.getMessage(example), ValidationProcessor.isValid(example));
+
+ }
+
+ @Test
+ public void testInteger() {
+ Example example = new Example();
+
+
+ assertFalse(ValidationProcessor.isValid(example));
+
+ }
+
+ @Test
+ public void testDouble() {
+ Example example = new Example();
+
+ assertFalse(ValidationProcessor.isValid(example));
+
+ }
+
+
+ public class Example {
+
+ @ParamRequired
+ String dog;
+
+ @ParamOptional(rule = ValidatorRule.EMAIL)
+ String email = "abc@gmail.com";
+
+ String foo;
+
+ @ParamRequired
+ Integer boo;
+
+ @ParamRequired
+ Integer boo2 = 90;
+
+ @ParamRequired
+ InnerClass innerClass;
+
+ InnerClass innerClass2;
+
+ @ParamRequired
+ InnerClass innerClass3 = new InnerClass();
+
+ @ParamOptional
+ CastClass castClass;
+
+ }
+
+ class InnerClass {
+
+ @ParamRequired
+ String innerString;
+
+ }
+
+ class CastClass {
+
+ @ParamOptional(rule = ValidatorRule.EMAIL)
+ String name = "asdf@sdf.com";
+
+ @ParamOptional
+ CastClass castClass;
+
+ }
+
+ class Foo {
+
+ @ParamRequired
+ String title;
+
+ @ParamOptional
+ String description;
+
+ }
+
+
+}
diff --git a/build.gradle b/build.gradle
new file mode 100755
index 0000000..8d65c57
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,27 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+
+ repositories {
+ google()
+ jcenter()
+ }
+ dependencies {
+ classpath 'com.android.tools.build:gradle:3.0.1'
+
+
+ // NOTE: Do not place your application dependencies here; they belong
+ // in the individual module build.gradle files
+ }
+}
+
+allprojects {
+ repositories {
+ google()
+ jcenter()
+ }
+}
+
+task clean(type: Delete) {
+ delete rootProject.buildDir
+}
diff --git a/gradle.properties b/gradle.properties
new file mode 100755
index 0000000..3530b01
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,17 @@
+# Project-wide Gradle settings.
+
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100755
index 0000000..13372ae
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100755
index 0000000..febbc21
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Tue Jan 23 11:16:53 EET 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..9d82f78
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,160 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+## Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+ echo "$*"
+}
+
+die ( ) {
+ echo
+ echo "$*"
+ echo
+ exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+ CYGWIN* )
+ cygwin=true
+ ;;
+ Darwin* )
+ darwin=true
+ ;;
+ MINGW* )
+ msys=true
+ ;;
+esac
+
+# 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 "$SAVED" >/dev/null
+
+CLASSPATH=$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" ] ; 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, switch paths to Windows format before running java
+if $cygwin ; then
+ APP_HOME=`cygpath --path --mixed "$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`="\"$arg\""
+ fi
+ i=$((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
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+ JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100755
index 0000000..aec9973
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+: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
diff --git a/settings.gradle b/settings.gradle
new file mode 100755
index 0000000..f275c60
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1 @@
+include ':app', ':validator'
diff --git a/validator/.gitignore b/validator/.gitignore
new file mode 100755
index 0000000..3543521
--- /dev/null
+++ b/validator/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/validator/build.gradle b/validator/build.gradle
new file mode 100755
index 0000000..a750cff
--- /dev/null
+++ b/validator/build.gradle
@@ -0,0 +1,34 @@
+apply plugin: 'com.android.library'
+
+android {
+ compileSdkVersion 26
+
+
+
+ defaultConfig {
+ minSdkVersion 21
+ targetSdkVersion 26
+ versionCode 1
+ versionName "1.0"
+
+ testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+
+ }
+
+ buildTypes {
+ release {
+ minifyEnabled false
+ proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+ }
+ }
+
+}
+
+dependencies {
+ implementation fileTree(dir: 'libs', include: ['*.jar'])
+
+ implementation 'com.android.support:appcompat-v7:26.1.0'
+ testImplementation 'junit:junit:4.12'
+ androidTestImplementation 'com.android.support.test:runner:1.0.1'
+ androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+}
diff --git a/validator/proguard-rules.pro b/validator/proguard-rules.pro
new file mode 100755
index 0000000..6e7ffa9
--- /dev/null
+++ b/validator/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
diff --git a/validator/src/main/AndroidManifest.xml b/validator/src/main/AndroidManifest.xml
new file mode 100755
index 0000000..584fca5
--- /dev/null
+++ b/validator/src/main/AndroidManifest.xml
@@ -0,0 +1 @@
+
diff --git a/validator/src/main/java/com/laurentiusimionescu/validator/ParamOptional.java b/validator/src/main/java/com/laurentiusimionescu/validator/ParamOptional.java
new file mode 100755
index 0000000..64b3489
--- /dev/null
+++ b/validator/src/main/java/com/laurentiusimionescu/validator/ParamOptional.java
@@ -0,0 +1,21 @@
+package com.laurentiusimionescu.validator;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.FIELD})
+public @interface ParamOptional {
+
+ /* Default is without regex. */
+ String regex() default "";
+
+ /**
+ * Default rule is without a rule.
+ * Available rules: {@link ValidatorRule}
+ */
+ ValidatorRule rule() default ValidatorRule.NO_RULE;
+
+}
diff --git a/validator/src/main/java/com/laurentiusimionescu/validator/ParamRequired.java b/validator/src/main/java/com/laurentiusimionescu/validator/ParamRequired.java
new file mode 100755
index 0000000..d324135
--- /dev/null
+++ b/validator/src/main/java/com/laurentiusimionescu/validator/ParamRequired.java
@@ -0,0 +1,21 @@
+package com.laurentiusimionescu.validator;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.FIELD})
+public @interface ParamRequired {
+
+ /* Default is without regex. */
+ String regex() default "";
+
+ /**
+ * Default rule is without a rule.
+ * Available rules: {@link ValidatorRule}
+ */
+ ValidatorRule rule() default ValidatorRule.NO_RULE;
+
+}
diff --git a/validator/src/main/java/com/laurentiusimionescu/validator/ValidationProcessor.java b/validator/src/main/java/com/laurentiusimionescu/validator/ValidationProcessor.java
new file mode 100755
index 0000000..a7beead
--- /dev/null
+++ b/validator/src/main/java/com/laurentiusimionescu/validator/ValidationProcessor.java
@@ -0,0 +1,164 @@
+package com.laurentiusimionescu.validator;
+
+import android.support.annotation.NonNull;
+
+import java.lang.reflect.Field;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.regex.Pattern;
+
+public class ValidationProcessor {
+
+ private static final String VALIDATION_FAIL_NULL = "is required and is null";
+ private static final String VALIDATION_FAIL_EMPTY = "is required and is empty";
+ private static final String VALIDATION_FAIL_REGEX = "doesn't match regex";
+ private static final String VALIDATION_ERROR = "validation error";
+
+ public static boolean isValid(@NonNull Object object) {
+ if (object == null) {
+ throw new RuntimeException("Object cannot be null");
+ }
+ try {
+ return checkIfValid(object, object.getClass().getSimpleName()) == null;
+ } catch (IllegalAccessException e) {
+ e.printStackTrace();
+ return false;
+ }
+ }
+
+ public static String getMessage(@NonNull Object object) {
+ try {
+ return checkIfValid(object, object.getClass().getSimpleName());
+ } catch (IllegalAccessException e) {
+ e.printStackTrace();
+ return VALIDATION_ERROR;
+ }
+ }
+
+ /* This method returns the message if the object is not valid, else will return null if the object is valid. */
+ private static String checkIfValid(@NonNull Object object, String path) throws IllegalAccessException {
+ String errorMessage = null;
+
+ for (Field field : object.getClass().getDeclaredFields()) {
+ field.setAccessible(true);
+ Object value = field.get(object);
+
+ if (field.isAnnotationPresent(ParamRequired.class) && field.isAnnotationPresent(ParamOptional.class)) {
+ throw new RuntimeException("A field cannot be annotated with both ParamRequired and ParamOptional. Please remove one.");
+ }
+
+ if (value != null && field.getClass().getDeclaredFields() != null && field.getClass().getDeclaredFields().length > 0 && !getWrapperTypes().contains(value.getClass())) {
+ String message = checkIfValid(value, path + "." + value.getClass().getSimpleName());
+ if (message != null) {
+ errorMessage = message;
+ return errorMessage;
+ }
+ }
+
+ if (field.isAnnotationPresent(ParamRequired.class)) {
+ errorMessage = requiredCheck(object, field, path);
+ if (errorMessage != null) {
+ return errorMessage;
+ }
+ }
+
+ if (field.isAnnotationPresent(ParamOptional.class)) {
+ errorMessage = optionalCheck(object, field, path);
+ if (errorMessage != null) {
+ return errorMessage;
+ }
+ }
+
+ }
+
+ return errorMessage;
+ }
+
+ private static String requiredCheck(@NonNull Object object, Field field, @NonNull String path) throws IllegalAccessException {
+ Object value = field.get(object);
+
+ if (value == null) {
+ return path + "." + field.getName() + " " + VALIDATION_FAIL_NULL;
+ }
+
+ if (value instanceof String && ((String) value).isEmpty()) {
+ return path + "." + field.getName() + " " + VALIDATION_FAIL_EMPTY;
+ }
+
+ if (value instanceof String && !((String) value).isEmpty()) {
+ return regexCheckRequired((String) value, field, path);
+ }
+
+ return null;
+
+ }
+
+ private static String optionalCheck(@NonNull Object object, Field field, @NonNull String path) throws IllegalAccessException {
+ Object value = field.get(object);
+
+ if (value instanceof String && !((String) value).isEmpty()) {
+ return regexCheckOptional((String) value, field, path);
+ }
+
+ return null;
+
+ }
+
+
+ private static String regexCheckRequired(@NonNull String value, Field field, @NonNull String path) throws IllegalAccessException {
+ ParamRequired paramRequired = field.getAnnotation(ParamRequired.class);
+
+ if (paramRequired.rule() != ValidatorRule.NO_RULE && !paramRequired.regex().isEmpty()) {
+ throw new RuntimeException("Choose only a regex or a predefined rule.");
+ }
+
+ if (paramRequired.rule() != ValidatorRule.NO_RULE) {
+ if (!Pattern.compile(paramRequired.rule().getRegex(), Pattern.CASE_INSENSITIVE).matcher(value).find()) {
+ return path + "." + field.getName() + " is required and " + VALIDATION_FAIL_REGEX + " : " + paramRequired.rule().getRegex();
+ }
+ } else {
+ if (!Pattern.compile(paramRequired.regex(), Pattern.CASE_INSENSITIVE).matcher(value).find()) {
+ return path + "." + field.getName() + " is required and " + VALIDATION_FAIL_REGEX + " : " + paramRequired.regex();
+ }
+ }
+
+ return null;
+ }
+
+ private static String regexCheckOptional(@NonNull String value, Field field, @NonNull String path) throws IllegalAccessException {
+ ParamOptional paramOptional = field.getAnnotation(ParamOptional.class);
+
+ if (paramOptional.rule() != ValidatorRule.NO_RULE && !paramOptional.regex().isEmpty()) {
+ throw new RuntimeException("Choose only a regex or a predefined rule.");
+ }
+
+ if (paramOptional.rule() != ValidatorRule.NO_RULE) {
+ if (!Pattern.compile(paramOptional.rule().getRegex(), Pattern.CASE_INSENSITIVE).matcher(value).find()) {
+ return path + "." + field.getName() + " is optional but " + VALIDATION_FAIL_REGEX + " : " + paramOptional.rule().getRegex();
+ }
+ } else {
+ if (!Pattern.compile(paramOptional.regex(), Pattern.CASE_INSENSITIVE).matcher(value).find()) {
+ return path + "." + field.getName() + " is optional but " + VALIDATION_FAIL_REGEX + " : " + paramOptional.regex();
+ }
+ }
+
+ return null;
+ }
+
+ private static Set> getWrapperTypes() {
+ Set> ret = new HashSet>();
+ ret.add(Boolean.class);
+ ret.add(Character.class);
+ ret.add(Byte.class);
+ ret.add(Short.class);
+ ret.add(Integer.class);
+ ret.add(Long.class);
+ ret.add(Float.class);
+ ret.add(Double.class);
+ ret.add(Void.class);
+ ret.add(String.class);
+ return ret;
+ }
+
+
+}
diff --git a/validator/src/main/java/com/laurentiusimionescu/validator/ValidatorRule.java b/validator/src/main/java/com/laurentiusimionescu/validator/ValidatorRule.java
new file mode 100755
index 0000000..238475f
--- /dev/null
+++ b/validator/src/main/java/com/laurentiusimionescu/validator/ValidatorRule.java
@@ -0,0 +1,72 @@
+package com.laurentiusimionescu.validator;
+
+public enum ValidatorRule {
+
+ /* A rule represents a predefined regex. The most common regex are for: email and password.
+ To use a custom regex type it in the Annotation Eg. @ParamOptional(regex = "abc") */
+
+ NO_RULE(null), // default rule
+
+ CREDIT_CARD("^(?:4[0-9]{12}(?:[0-9]{3})?|5[1-5][0-9]{14}|6011[0-9]{12}|3(?:0[0-5]|[68][0-9])[0-9]{11}|3[47][0-9]{13})$"), // This regular expression will validate all major credit cards: American Express (Amex), Discover, Mastercard, and Visa. Note that it is not quite as precise as its counterpart Perl and PHP regex.
+ CREDIT_CARD_VISA("^(4[0-9]{12}(?:[0-9]{3})?)*$"),
+ CREDIT_CARD_MASTERCARD("^(5[1-5][0-9]{14})*$"),
+ CREDIT_CARD_AMEX("^(3[47][0-9]{13})*$"),
+
+ DATE_DD_MM_YYYY("^([1-9]|0[1-9]|[12][0-9]|3[01])\\D([1-9]|0[1-9]|1[012])\\D(19[0-9][0-9]|20[0-9][0-9])$"), // usual date format (dd mm yyyy, d/m/yyyy, etc.)
+ DATE_MM_DD_YYYY("^(0?[1-9]|1[012])[- /.](0?[1-9]|[12][0-9]|3[01])[- /.](19|20)?[0-9]{2}$"), // Validate the calendar date in MM/DD/YYYY format with this regex. Optional separators are spaces, hyphens, forward slashes, and periods. The year is limited between 1900 and 2099.
+ DATE_YYYY_MM_DD("^(19|20)?[0-9]{2}[- /.](0?[1-9]|1[012])[- /.](0?[1-9]|[12][0-9]|3[01])$"), // Validate the calendar date in YYYY/MM/DD format with this regex. Optional separators are spaces, hyphens, forward slashes, and periods. The year is limited between 1900 and 2099.
+
+ EMAIL("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,6}$"),
+ USERNAME("^[\\w\\d_.]{4,}$"), // Common username
+
+ PASSWORD("^(?=.*[0-9])(?=.*[a-z])(?=.*[A-Z])(?=.*[@#$%^&+=])(?=\\S+$).{8,}$"), // complex password, look below for explanation
+ PASSWORD_6_CHAR("^.{6,}$"), // Simple password, enter 6 or more chars
+
+ PHONE_NUMBER("^\\+?[\\d\\s]{3,}$"),
+ PHONE_NUMBER_WITH_CODE("^\\+?[\\d\\s]+\\(?[\\d\\s]{10,}$"),
+ PHONE_NUMBER_NORTH_AMERICA("^(([0-9]{1})*[- .(]*([0-9]{3})[- .)]*[0-9]{3}[- .]*[0-9]{4})+$"), // This regex will validate a 10-digit North American telephone number. Separators are not required, but can include spaces, hyphens, or periods. Parentheses around the area code are also optional.
+
+ DIGITS_ONLY("^[0-9]+$"),
+ NUMBER_POSITIVE("^\\d*\\.?\\d+$"),
+ NUMBER_NEGATIVE("^-\\d*\\.?\\d+$"),
+
+ ALPHA_NUMERIC("^[a-zA-Z0-9]*$"), // Alpha-numeric characters only
+ ALPHA_NUMERIC_WITH_SPACES("^[a-zA-Z0-9 ]*$"), // Alpha-numeric characters with spaces only
+ ALPHABETIC("^[a-zA-Z]*$"), // Alphabetic characters only
+ ALPHABETIC_UPPERCASE("^([A-Z])*$"), // Uppercase letters only
+ ALPHABETIC_LOWERCASE("^([a-z])*$"), // Lowercase letters only
+
+
+ DOMAIN("^([a-z][a-z0-9-]+(\\.|-*\\.))+[a-z]{2,6}$"),
+ URL("^(https?:\\/\\/)?([\\da-z\\.-]+)\\.([a-z\\.]{2,6})([\\/\\w \\.-]*)*\\/?$"),
+ IP_V4("^(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5])\\.(\\d|[1-9]\\d|1\\d\\d|2[0-4]\\d|25[0-5]){3}$"),
+
+ STATES_US("^(?:A[KLRZ]|C[AOT]|D[CE]|FL|GA|HI|I[ADLN]|K[SY]|LA|M[ADEINOST]|N[CDEHJMVY]|O[HKR]|PA|RI|S[CD]|T[NX]|UT|V[AT]|W[AIVY])*$"), // Validate all 2-letter US State abbreviates with this regular expression.
+ ZIP_CODE_US("^[0-9]{5}(?:-[0-9]{4})?$"), // This regexp verifies US ZIP Codes, with an optional 4 number ZIP code extension.
+
+ POSTAL_CODE_CANADA("^[ABCEGHJKLMNPRSTVXY][0-9][A-Z] [0-9][A-Z][0-9]$"), // Canadian Postal Codes
+ POSTAL_CODE_UK("^([A-Z]{1,2}[0-9][A-Z0-9]? [0-9][ABD-HJLNP-UW-Z]{2})*$"), // This regexp verifies UK Postal Codes.
+ POSTAL_CODE_AUSTRALIA("^((0[289][0-9]{2})|([1345689][0-9]{3})|(2[0-8][0-9]{2})|(290[0-9])|(291[0-4])|(7[0-4][0-9]{2})|(7[8-9][0-9]{2}))*$"); // If you need to verify Australian Postal Codes, use this regular expression.
+
+ /**
+ * ^ # start-of-string
+ * (?=.*[0-9]) # a digit must occur at least once
+ * (?=.*[a-z]) # a lower case letter must occur at least once
+ * (?=.*[A-Z]) # an upper case letter must occur at least once
+ * (?=.*[@#$%^&+=]) # a special character must occur at least once
+ * (?=\S+$) # no whitespace allowed in the entire string
+ * .{8,} # anything, at least eight places though
+ * $ # end-of-string
+ */
+
+ private String regex;
+
+ ValidatorRule(String regex) {
+ this.regex = regex;
+ }
+
+ public String getRegex() {
+ return regex;
+ }
+
+}