csns.web.validator.ResourceValidator.java Source code

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Here is the source code for csns.web.validator.ResourceValidator.java

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/*
 * This file is part of the CSNetwork Services (CSNS) project.
 * 
 * Copyright 2012-2014, Chengyu Sun (csun@calstatela.edu).
 * 
 * CSNS is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Affero General Public License as published by the Free
 * Software Foundation, either version 3 of the License, or (at your option)
 * any later version.
 * 
 * CSNS 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 Affero General Public License for
 * more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with CSNS. If not, see http://www.gnu.org/licenses/agpl.html.
 */
package csns.web.validator;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.validation.Errors;
import org.springframework.validation.ValidationUtils;
import org.springframework.validation.Validator;
import org.springframework.web.multipart.MultipartFile;

import csns.model.core.Resource;
import csns.model.core.ResourceType;
import csns.util.MyAntiSamy;

@Component
public class ResourceValidator implements Validator {

    @Autowired
    private MyAntiSamy antiSamy;

    @Override
    public boolean supports(Class<?> clazz) {
        return Resource.class.isAssignableFrom(clazz);
    }

    @Override
    public void validate(Object target, Errors errors) {
        ValidationUtils.rejectIfEmptyOrWhitespace(errors, "name", "error.field.required");

        Resource resource = (Resource) target;
        if (resource.getType() != ResourceType.NONE) {
            switch (resource.getType()) {
            case TEXT:
                if (!StringUtils.hasText(resource.getText()))
                    errors.rejectValue("text", "error.field.required");
                else if (!antiSamy.validate(resource.getText()))
                    errors.rejectValue("text", "error.html.invalid");
                break;

            case URL:
                if (!StringUtils.hasText(resource.getUrl()))
                    errors.rejectValue("url", "error.field.required");
                break;

            default:
                // file upload is not validated.
            }
        }
    }

    public void validate(Resource resource, MultipartFile uploadedFile, Errors errors) {
        validate(resource, errors);

        if (resource.getType() == ResourceType.FILE && resource.getFile() == null
                && (uploadedFile == null || uploadedFile.isEmpty()))
            errors.rejectValue("file", "error.field.required");
    }

}