QueryAutocompletePlaceholderFilter.java

/*
 * Copyright (c) 2002-2017, 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
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 *
 * License 1.0
 */
package fr.paris.lutece.plugins.gruindexing.web.elasticsearch.template.impl;

import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.lang3.StringUtils;

import fr.paris.lutece.plugins.gruindexing.web.elasticsearch.template.AutocompletePlaceholderFilterChain;
import fr.paris.lutece.plugins.gruindexing.web.elasticsearch.template.IAutocompletePlaceholderFilter;

/**
 * This class filters the map of placeholders to add the query to search
 *
 */
public class QueryAutocompletePlaceholderFilter implements IAutocompletePlaceholderFilter
{
    private static final String PARAMETER_QUERY = "query";
    private static final String PLACEHOLDER_QUERY = PARAMETER_QUERY;

    /**
     * {@inheritDoc}
     */
    @Override
    public void doFilter( HttpServletRequest request, Map<String, String> mapPlaceholderValues, AutocompletePlaceholderFilterChain chain )
    {
        String strQuery = StringUtils.defaultString( request.getParameter( PARAMETER_QUERY ), StringUtils.EMPTY );

        mapPlaceholderValues.put( PLACEHOLDER_QUERY, strQuery );

        chain.doFilter( request, mapPlaceholderValues );
    }

}