/*
* JBoss, a division of Red Hat
* Copyright 2012, Red Hat Middleware, LLC, and individual
* contributors as indicated by the @authors tag. See the
* copyright.txt in the distribution for a full listing of
* individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.exoplatform.webui.form.validator;
import java.io.Serializable;
import org.exoplatform.web.application.ApplicationMessage;
import org.exoplatform.webui.core.UIComponent;
import org.exoplatform.webui.exception.MessageException;
import org.exoplatform.webui.form.UIForm;
import org.exoplatform.webui.form.UIFormInput;
/** @author <a href="mailto:chris.laprun@jboss.com">Chris Laprun</a> */
public abstract class AbstractValidator implements Validator, Serializable {
protected boolean exceptionOnMissingMandatory = false;
protected boolean trimValue = false;
protected String getLabelFor(UIFormInput uiInput) throws Exception {
UIComponent uiComponent = (UIComponent) uiInput;
UIForm uiForm = uiComponent.getAncestorOfType(UIForm.class);
String label = uiInput.getName();
if (uiForm != null) {
label = uiForm.getLabel(label);
}
label = label.trim();
// remove trailing ':' if there is one
int index = label.indexOf(':');
if (index != -1) {
label = label.substring(0, index);
}
return label.trim();
}
public void validate(UIFormInput uiInput) throws Exception {
String value = trimmedValueOrNullIfBypassed((String) uiInput.getValue(), uiInput, exceptionOnMissingMandatory,
trimValue);
if (value == null) {
return;
}
if (!isValid(value, uiInput)) {
throw createMessageException(value, uiInput);
}
}
protected MessageException createMessageException(String value, UIFormInput uiInput) throws Exception {
return createMessageException(value, uiInput, getMessageLocalizationKey());
}
protected MessageException createMessageException(String value, UIFormInput uiInput, String localizationKey)
throws Exception {
return new MessageException(new ApplicationMessage(localizationKey, getMessageArgs(value, uiInput),
ApplicationMessage.WARNING));
}
protected Object[] getMessageArgs(String value, UIFormInput uiInput) throws Exception {
return new Object[] { getLabelFor(uiInput) };
}
protected abstract String getMessageLocalizationKey();
protected abstract boolean isValid(String value, UIFormInput uiInput);
protected String trimmedValueOrNullIfBypassed(String value, UIFormInput uiInput, boolean exceptionOnMissingMandatory,
boolean trimValue) throws Exception {
if (value != null) {
String tmp = value.trim();
if (trimValue) {
value = tmp;
}
value = tmp.isEmpty() ? null : value;
}
if (exceptionOnMissingMandatory && value == null) {
throw createMessageException(value, uiInput, "EmptyFieldValidator.msg.empty-input");
}
return value;
}
}