diff --git a/jeeutil/pom.xml b/jeeutil/pom.xml
index 0b10f07..fc09e1e 100644
--- a/jeeutil/pom.xml
+++ b/jeeutil/pom.xml
@@ -30,6 +30,13 @@
hibernate-core
provided
+
+ org.primefaces
+ primefaces
+ 6.0
+ jar
+ provided
+
javax
javaee-api
diff --git a/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/Email.java b/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/Email.java
new file mode 100644
index 0000000..6ce3e60
--- /dev/null
+++ b/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/Email.java
@@ -0,0 +1,31 @@
+package de.muehlencord.shared.jeeutil.validator;
+
+import java.lang.annotation.Documented;
+import static java.lang.annotation.ElementType.ANNOTATION_TYPE;
+import static java.lang.annotation.ElementType.FIELD;
+import static java.lang.annotation.ElementType.METHOD;
+import java.lang.annotation.Retention;
+import static java.lang.annotation.RetentionPolicy.RUNTIME;
+import java.lang.annotation.Target;
+import javax.validation.Constraint;
+import javax.validation.Payload;
+import org.primefaces.validate.bean.ClientConstraint;
+
+/**
+ *
+ * @author Joern Muehlencord
+ */
+@Target({METHOD, FIELD, ANNOTATION_TYPE})
+@Retention(RUNTIME)
+@Constraint(validatedBy = EmailConstraintValidator.class)
+@ClientConstraint(resolvedBy = EmailClientValidationConstraint.class)
+@Documented
+public @interface Email {
+
+ String message() default "{de.muehlencord.shared.jeeutil.validator.Email}";
+
+ Class>[] groups() default {};
+
+ Class extends Payload>[] payload() default {};
+
+}
diff --git a/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/EmailClientValidationConstraint.java b/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/EmailClientValidationConstraint.java
new file mode 100644
index 0000000..ecdde5f
--- /dev/null
+++ b/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/EmailClientValidationConstraint.java
@@ -0,0 +1,33 @@
+package de.muehlencord.shared.jeeutil.validator;
+
+import java.util.HashMap;
+import java.util.Map;
+import javax.validation.metadata.ConstraintDescriptor;
+import org.primefaces.validate.bean.ClientValidationConstraint;
+
+/**
+ *
+ * @author Joern Muehlencord
+ */
+public class EmailClientValidationConstraint implements ClientValidationConstraint {
+
+ public static final String MESSAGE_METADATA = "data-p-email-msg";
+
+ @Override
+ public Map getMetadata(ConstraintDescriptor constraintDescriptor) {
+ Map metadata = new HashMap<>();
+ Map attrs = constraintDescriptor.getAttributes();
+ Object message = attrs.get("message");
+ if (message != null) {
+ metadata.put(MESSAGE_METADATA, message);
+ }
+
+ return metadata;
+ }
+
+ @Override
+ public String getValidatorId() {
+ return Email.class.getSimpleName();
+ }
+
+}
diff --git a/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/EmailConstraintValidator.java b/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/EmailConstraintValidator.java
new file mode 100644
index 0000000..a974f5e
--- /dev/null
+++ b/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/EmailConstraintValidator.java
@@ -0,0 +1,33 @@
+package de.muehlencord.shared.jeeutil.validator;
+
+import java.util.regex.Pattern;
+import javax.validation.ConstraintValidator;
+import javax.validation.ConstraintValidatorContext;
+
+/**
+ *
+ * @author Joern Muehlencord
+ */
+public class EmailConstraintValidator implements ConstraintValidator {
+
+ private static final String EMAIL_PATTERN = "^[_A-Za-z0-9-]+(\\."
+ + "[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*"
+ + "(\\.[A-Za-z]{2,})$";
+
+ private Pattern pattern;
+
+ @Override
+ public void initialize(Email a) {
+ pattern = Pattern.compile(EMAIL_PATTERN);
+ }
+
+ @Override
+ public boolean isValid(String value, ConstraintValidatorContext cvc) {
+ if (value == null) {
+ return true;
+ } else {
+ return pattern.matcher(value).matches();
+ }
+ }
+
+}
diff --git a/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/EmailValidator.java b/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/EmailValidator.java
new file mode 100644
index 0000000..4398b9a
--- /dev/null
+++ b/jeeutil/src/main/java/de/muehlencord/shared/jeeutil/validator/EmailValidator.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2017 Joern Muehlencord .
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package de.muehlencord.shared.jeeutil.validator;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import javax.faces.application.FacesMessage;
+import javax.faces.component.UIComponent;
+import javax.faces.context.FacesContext;
+import javax.faces.validator.FacesValidator;
+import javax.faces.validator.Validator;
+import javax.faces.validator.ValidatorException;
+
+/**
+ *
+ * @author Joern Muehlencord
+ */
+@FacesValidator("de.muehlencord.shared.jeeutil.validator.EmailValidator")
+public class EmailValidator implements Validator {
+
+ private static final String EMAIL_PATTERN = "^[_A-Za-z0-9-]+(\\."
+ + "[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*"
+ + "(\\.[A-Za-z]{2,})$";
+
+ private final Pattern pattern;
+ private Matcher matcher;
+
+ public EmailValidator() {
+ pattern = Pattern.compile(EMAIL_PATTERN);
+ }
+
+ @Override
+ public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException {
+ matcher = pattern.matcher(value.toString());
+ if (!matcher.matches()) {
+ // String summary = context.getApplication().evaluateExpressionGet(context, "#{msgs.email_validation_failed}", String.class);
+ // String detail = context.getApplication().evaluateExpressionGet(context, "#{msgs.email_validation_failed_detail}", String.class);
+ // FacesMessage msg = new FacesMessage(summary, detail);
+
+ FacesMessage msg = new FacesMessage("E-mail validation failed.","Invalid E-mail format.");
+
+ msg.setSeverity(FacesMessage.SEVERITY_ERROR);
+ throw new ValidatorException(msg);
+ }
+ }
+
+}