com.gisgraphy.rest.BeanToRestParameter.java Source code

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Here is the source code for com.gisgraphy.rest.BeanToRestParameter.java

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/*******************************************************************************
 * Gisgraphy Project 
 *  
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation; either
 *    version 2.1 of the License, or (at your option) any later version.
 *  
 *    This library 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
 *    Lesser General Public License for more details.
 *  
 *    You should have received a copy of the GNU Lesser General Public
 *    License along with this library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
 *  
 *   Copyright 2008  Gisgraphy project 
 * 
 *   David Masclet <davidmasclet@gisgraphy.com>
 ******************************************************************************/
package com.gisgraphy.rest;

import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.beanutils.PropertyUtils;

import com.gisgraphy.domain.Constants;

public class BeanToRestParameter {

    public static String toQueryString(Object object) {
        if (object == null) {
            throw new RestClientException("Can not get queryString for null object");
        }
        StringBuilder sb = new StringBuilder(128);
        try {
            boolean first = true;
            String andValue = "&";
            for (PropertyDescriptor thisPropertyDescriptor : Introspector
                    .getBeanInfo(object.getClass(), Object.class).getPropertyDescriptors()) {
                Object property = PropertyUtils.getProperty(object, thisPropertyDescriptor.getName());
                if (property != null) {
                    sb.append(first ? "?" : andValue);
                    sb.append(thisPropertyDescriptor.getName());
                    sb.append("=");
                    sb.append(URLEncoder.encode(property.toString(), Constants.CHARSET));
                    first = false;
                }
            }
        } catch (Exception e) {
            throw new RestClientException("can not generate url for bean: " + e.getMessage(), e);
        }
        return sb.toString();
    }

    public static Map<String, String> ToMap(Object object) {
        if (object == null) {
            throw new RestClientException("Can not get queryString for null object");
        }
        Map<String, String> result = new HashMap<String, String>();
        try {
            for (PropertyDescriptor thisPropertyDescriptor : Introspector
                    .getBeanInfo(object.getClass(), Object.class).getPropertyDescriptors()) {
                Object property = PropertyUtils.getProperty(object, thisPropertyDescriptor.getName());
                if (property != null) {
                    result.put(thisPropertyDescriptor.getName(), property.toString());
                }
            }
        } catch (Exception e) {
            throw new RestClientException("can not generate Map for bean : " + e.getMessage(), e);
        }
        return result;
    }

}