+/*
+ * Copyright (C) 2015 Roland Haeder
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.mxchange.jusercore.model.user;
+
+import java.text.MessageFormat;
+import javax.ejb.EJB;
+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;
+import org.mxchange.jcoreee.validator.number.BaseLongValidator;
+
+/**
+ * A validator for user ids
+ * <p>
+ * @author Roland Haeder
+ */
+@FacesValidator (value = "UserIdValidator")
+public class UserIdValidator extends BaseLongValidator implements Validator {
+
+ /**
+ * Serial number
+ */
+ private static final long serialVersionUID = 12_869_569_314_764_690L;
+
+ /**
+ * Remote bean
+ */
+ @EJB (mappedName = "ejb/stateless-user")
+ private UserSessionBeanRemote userBean;
+
+ @Override
+ public void validate (final FacesContext context, final UIComponent component, final Object value) throws ValidatorException {
+ // Trace message
+ //this.getLogger().logTrace(MessageFormat.format("validate: context={0},component={1},value={2} - CALLED!", context, component, value)); //NOI18N
+
+ // All accepted, required fields
+ String[] requiredFileds = {"userId"}; //NOI18N
+
+ // Pre-validation (example: not null, not a string, empty string ...)
+ super.preValidate(context, component, value, requiredFileds, false);
+
+ // Is the address book id valid?
+ if (!this.userBean.ifUserIdExists((Long) value)) {
+ // Is not valid
+ throw new ValidatorException(new FacesMessage(MessageFormat.format("No user found with id {0}. Please check your link.", value))); //NOI18N
+ }
+
+ // Trace message
+ //this.getLogger().logTrace("validate: EXIT!"); //NOI18N
+ }
+}