/*
* ModeShape (http://www.modeshape.org)
*
* 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 org.modeshape.jboss.subsystem;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jboss.as.controller.OperationFailedException;
import org.jboss.as.controller.operations.validation.ModelTypeValidator;
import org.jboss.dmr.ModelNode;
import org.jboss.dmr.ModelType;
/**
* A ParameterValidator that validates a value matches a predefined regular expression.
*/
public class RegexValidator extends ModelTypeValidator {
private final Pattern pattern;
/**
* Creates a ParameterValidator that allows values that satisfy a single regular expression string.
*
* @param regularExpression the regular expression
* @param nullable whether {@link ModelType#UNDEFINED} is allowed
*/
public RegexValidator( String regularExpression,
boolean nullable ) {
super(ModelType.STRING, nullable, true, true);
pattern = Pattern.compile(regularExpression);
}
@Override
public void validateParameter( String parameterName,
ModelNode value ) throws OperationFailedException {
super.validateParameter(parameterName, value);
String str = value.asString();
Matcher matcher = pattern.matcher(str);
if (!matcher.matches()) {
throw new OperationFailedException("The value '" + str + "' must satisfy the regular expression: " + pattern);
}
}
}