package org.jtheque.ui.impl.constraints;
import org.jtheque.errors.Errors;
import org.jtheque.ui.components.FileChooser;
import org.jtheque.ui.constraints.Constraint;
import org.jtheque.ui.utils.ValidationUtils;
import java.io.File;
import java.util.Collection;
/*
* Copyright JTheque (Baptiste Wicht)
*
* 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.
*/
/**
* A constraint to indicate that the field cannot be null.
*
* @author Baptiste Wicht
*/
public final class ValidFileConstraint implements Constraint {
private final String fieldName;
private final int maxLength;
/**
* Construct a new NotNullConstraint.
*
* @param fieldName The field name.
* @param maxLength The max length of the field.
*/
public ValidFileConstraint(String fieldName, int maxLength) {
super();
this.fieldName = fieldName;
this.maxLength = maxLength;
}
@Override
public int getMaxLength() {
return maxLength;
}
@Override
public boolean isLengthControlled() {
return false;
}
@Override
public void validate(Object field, Collection<org.jtheque.errors.Error> errors) {
if (field instanceof FileChooser) {
String filePath = ((FileChooser) field).getFilePath();
if (maxLength > 0) {
ValidationUtils.rejectIfLongerThan(filePath, fieldName, maxLength, errors);
}
if (errors.isEmpty() && !new File(filePath).exists()) {
errors.add(Errors.newI18nError("error.validation.field.file", new Object[]{fieldName}));
}
}
}
@Override
public void configure(Object component) {
//Nothing to do here
}
}