001/**
002 * Copyright 2013 John Ericksen
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *    http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.androidtransfuse.analysis.astAnalyzer.validation;
017
018import com.google.common.collect.ImmutableSet;
019import org.androidtransfuse.adapter.ASTAnnotation;
020import org.androidtransfuse.adapter.ASTBase;
021import org.androidtransfuse.validation.Validator;
022
023/**
024 * @author John Ericksen
025 */
026public class AnnotationParameterRegexValidator implements AnnotationValidator{
027
028    private final String regex;
029    private final String parameter;
030    private final Validator validator;
031    private final String message;
032
033    public AnnotationParameterRegexValidator(String regex, String parameter, Validator validator, String message) {
034        this.regex = regex;
035        this.parameter = parameter;
036        this.validator = validator;
037        this.message = message;
038    }
039
040    @Override
041    public void validate(ASTAnnotation annotation, ASTBase astBase, ImmutableSet<ASTAnnotation> applicableAnnotations) {
042        String parameterValue = annotation.getProperty(parameter, String.class);
043
044        if(parameterValue != null && !parameterValue.matches(regex)){
045            validator.error(message)
046                    .element(astBase)
047                    .annotation(annotation)
048                    .parameter(parameter)
049                    .build();
050        }
051    }
052}