fr.paris.lutece.plugins.contextinclude.service.parameter.ContextParameterService.java Source code

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Here is the source code for fr.paris.lutece.plugins.contextinclude.service.parameter.ContextParameterService.java

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/*
 * Copyright (c) 2002-2014, Mairie de Paris
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice
 *     and the following disclaimer.
 *
 *  2. Redistributions in binary form must reproduce the above copyright notice
 *     and the following disclaimer in the documentation and/or other materials
 *     provided with the distribution.
 *
 *  3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
 *     contributors may be used to endorse or promote products derived from
 *     this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * License 1.0
 */
package fr.paris.lutece.plugins.contextinclude.service.parameter;

import fr.paris.lutece.plugins.contextinclude.business.parameter.ContextParameter;
import fr.paris.lutece.plugins.contextinclude.business.parameter.IContextParameter;
import fr.paris.lutece.plugins.contextinclude.business.parameter.IContextParameterDAO;
import fr.paris.lutece.plugins.contextinclude.service.ContextIncludePlugin;
import fr.paris.lutece.plugins.contextinclude.util.annotation.ContextAttribute;
import fr.paris.lutece.portal.service.util.AppLogService;

import org.apache.commons.beanutils.BeanUtils;

import org.springframework.transaction.annotation.Transactional;

import org.springframework.util.ReflectionUtils;

import java.lang.reflect.InvocationTargetException;

import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;

import javax.inject.Inject;

/**
 * The Class ContextParameterService.
 */
public class ContextParameterService implements IContextParameterService {
    /** The Constant BEAN_SERVICE. */
    public static final String BEAN_SERVICE = "contextinclude.contextParameterService";

    /** The _context parameter dao. */
    @Inject
    private IContextParameterDAO _contextParameterDAO;

    /** The _context parameter. */
    @Inject
    private IContextParameter _contextParameter;

    /**
     * {@inheritDoc}
     */
    @Override
    public IContextParameter find() {
        Map<String, Object> mapParameters = _contextParameterDAO.load(ContextIncludePlugin.getPlugin());

        if (mapParameters != null) {
            try {
                BeanUtils.populate(_contextParameter, mapParameters);
            } catch (IllegalAccessException e) {
                AppLogService.error(e.getMessage(), e);
            } catch (InvocationTargetException e) {
                AppLogService.error(e.getMessage(), e);
            }
        }

        return _contextParameter;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    @Transactional(ContextIncludePlugin.TRANSACTION_MANAGER)
    public void update() {
        // First remove the parameters
        _contextParameterDAO.remove(ContextIncludePlugin.getPlugin());

        Map<String, Object> mapAttributes = depopulate(_contextParameter);

        // Then add the parameters
        for (Entry<String, Object> attribute : mapAttributes.entrySet()) {
            _contextParameterDAO.insert(attribute.getKey(), attribute.getValue(), ContextIncludePlugin.getPlugin());
        }
    }

    // PRIVATE METHODS

    /**
     * Depopulate.
     *
     * @param contextParameter the context parameter
     * @return the map
     */
    private static Map<String, Object> depopulate(IContextParameter contextParameter) {
        Map<String, Object> mapAttributes = new HashMap<String, Object>();

        for (java.lang.reflect.Field field : ContextParameter.class.getDeclaredFields()) {
            ContextAttribute attribute = field.getAnnotation(ContextAttribute.class);

            if (attribute != null) {
                String strAttributeKey = attribute.value();

                try {
                    field.setAccessible(true);

                    Object attributeValue = ReflectionUtils.getField(field, contextParameter);
                    mapAttributes.put(strAttributeKey, attributeValue);
                } catch (SecurityException e) {
                    AppLogService.error(e);
                }
            }
        }

        return mapAttributes;
    }
}