de.unioninvestment.eai.portal.portlet.crud.validation.ConfigurationUploadValidator.java Source code

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Here is the source code for de.unioninvestment.eai.portal.portlet.crud.validation.ConfigurationUploadValidator.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 de.unioninvestment.eai.portal.portlet.crud.validation;

import static de.unioninvestment.eai.portal.support.vaadin.context.Context.getMessage;

import java.io.ByteArrayInputStream;

import javax.xml.bind.JAXBException;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.vaadin.data.Validator;

import de.unioninvestment.eai.portal.portlet.crud.config.PortletConfig;
import de.unioninvestment.eai.portal.portlet.crud.config.converter.PortletConfigurationMarshaller;
import de.unioninvestment.eai.portal.portlet.crud.config.validation.SecurityValidationVisitor;
import de.unioninvestment.eai.portal.portlet.crud.config.visitor.ConfigurationProcessor;

/**
 * Validiert ein PortletPresenter Config XML gegen das Schema.
 * 
 * @author markus.bonsch
 * 
 */
public class ConfigurationUploadValidator implements Validator {

    private static final long serialVersionUID = 1L;

    private static final Logger LOG = LoggerFactory.getLogger(ConfigurationUploadValidator.class);

    @Override
    public void validate(Object value) {
        if ((value instanceof byte[]) && !isValid(value)) {
            throw new InvalidValueException(getMessage("portlet.crud.page.upload.invalid"));
        }
    }

    public boolean isValid(Object value) {
        try {
            PortletConfig portletConfig = validateAndUnmarshal(value);

            validateSecurity(portletConfig);

        } catch (Exception e) {
            LOG.warn("Konfiguration ist nicht valide: " + e.getMessage(), e);
            return false;
        }

        return true;
    }

    private PortletConfig validateAndUnmarshal(Object value) throws JAXBException {
        ByteArrayInputStream stream = new ByteArrayInputStream((byte[]) value);
        PortletConfig portletConfig = new PortletConfigurationMarshaller().unmarshal(stream);
        return portletConfig;
    }

    private void validateSecurity(PortletConfig portletConfig) {
        ConfigurationProcessor roleValidation = new ConfigurationProcessor(new SecurityValidationVisitor());
        roleValidation.traverse(portletConfig);
    }

}