001/*
002 *  Copyright 2020 Anyware Services
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.ametys.cms.contenttype.validation;
017
018import java.util.Optional;
019import java.util.stream.Stream;
020
021import org.ametys.cms.data.Reference;
022import org.ametys.runtime.i18n.I18nizableText;
023import org.ametys.runtime.parameter.DefaultValidator;
024import org.ametys.runtime.parameter.Errors;
025
026/**
027 * This is an implementation of {@link DefaultValidator} for {@link Reference}.
028 */
029public class ReferenceValidator extends DefaultValidator
030{
031    /**
032     * Default constructor for avalon
033     */
034    public ReferenceValidator()
035    {
036        super();
037    }
038    
039    /**
040     * Manual constructor
041     * @param regexp The regexp to check or null
042     * @param mandatory Is the value mandatory 
043     */
044    public ReferenceValidator(String regexp, boolean mandatory)
045    {
046        super(regexp, mandatory);
047    }
048    
049    /**
050     * Manual constructor
051     * @param regexp The regexp to check or null
052     * @param invalidText The error text to display
053     * @param mandatory Is the value mandatory 
054     */
055    public ReferenceValidator(String regexp, I18nizableText invalidText, boolean mandatory)
056    {
057        super(regexp, invalidText, mandatory);
058    }
059    
060    @Override
061    public void validate(Object value, Errors errors)
062    {
063        boolean isArray = value != null && value.getClass().isArray();
064        if (isArray)
065        {
066            assert value instanceof Reference[];
067            Object[] internalValues = Stream.of((Reference[]) value)
068                .map(Reference::getValue)
069                .toArray();
070            validateArrayValues(internalValues, errors); 
071        }
072        else
073        {
074            assert value instanceof Reference;
075            String internalValue = Optional.ofNullable(value)
076                .map(Reference.class::cast)
077                .map(Reference::getValue)
078                .orElse(null);
079            validateSingleValue(internalValue, errors);
080        }
081    }
082}