DisplayStreetAction.java

/*******************************************************************************
 *   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.webapp.action;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.gisgraphy.domain.geoloc.entity.OpenStreetMap;
import com.gisgraphy.domain.repository.IOpenStreetMapDao;
import com.gisgraphy.domain.valueobject.GisgraphyConfig;
import com.opensymphony.xwork2.ActionSupport;

/**
 * DisplayStreet Action
 * 
 * @author <a href="mailto:david.masclet@gisgraphy.com">David Masclet</a>
 */
public class DisplayStreetAction extends ActionSupport implements GoogleMapApiKeyAware{

	/**
	 * The reference in the localized file for  the fact that the street has no name
	 */
	public static final String GLOBAL_STREET_NONAME = "global.street.noname";

	/**
	 * The reference in the localized file for the error for the fact gid
	 * is required
	 */
	public static final String ERROR_REF_REQUIRED_FEATURE_ID = "required.gid";

	/**
	 * The reference in the localized file for the error for the fact that the
	 * specified gid is not a numeric value
	 */
	public static final String ERROR_REF_NON_NUMERIC_FEATUREID = "displayfeature.gid.numeric";


	/**
	 * The reference in the localized file for the error for the fact that no
	 * features were found for the specified gid
	 */
	public static final String ERROR_REF_NORESULT = "result.street.noresult";

	/**
	 * The reference in the localized file for general error
	 */
	static final String ERROR_REF_GENERAL_ERROR = "display.error";

	/**
	 * Default Generated serial Id
	 */
	private static final long serialVersionUID = 2940477476216677L;


	private static Logger logger = LoggerFactory
			.getLogger(DisplayStreetAction.class);

	private IOpenStreetMapDao openStreetMapDao;

	private String gid;

	private String shape = null;

	private OpenStreetMap result = null;

	private String lat;

	private String lng;

	public static final String ERROR = "error";

	/**
	 * @return the fullyqualified name if exists, or the name
	 */
	public String getPreferedName() {
		if (result == null) {
			return "";
		} else {
			return !StringUtils.isEmpty(result.getName()) ? result.getName()
					:getText(GLOBAL_STREET_NONAME);
		}
	}


	private boolean isNumeric(String number) {
		try {
			Integer.parseInt(number);
			return true;
		} catch (NumberFormatException e) {
			return false;
		}
	}

	/**
	 * The error message reference in the localized properties file
	 */
	private String errorRef = "";

	private String errorMessage = "";

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.opensymphony.xwork2.ActionSupport#execute()
	 */
	@Override
	public String execute() throws Exception {
		try {
			if (StringUtils.isEmpty(gid)) {
				errorRef = ERROR_REF_REQUIRED_FEATURE_ID;
				return ERROR;
			}
			if (!isNumeric(gid)) {
				errorRef = ERROR_REF_NON_NUMERIC_FEATUREID;
				return ERROR;
			}
			result = openStreetMapDao.getByGid(Long.valueOf(gid));
			if (result == null) {
				errorRef = ERROR_REF_NORESULT;
				return ERROR;
			} else {
				this.shape= retrieveShape(result.getGid());
			}
		} catch (RuntimeException e) {
			if (e.getCause() != null) {
				logger.warn("An error occured during search : "
						+ e.getCause().getMessage());
			} else {
				logger.warn("An error occured during search : "
						+ e.getMessage());
			}
			this.errorRef = ERROR_REF_GENERAL_ERROR;
			this.errorMessage = e.getMessage();
			return ERROR;
		}
		return SUCCESS;
	}


	protected String retrieveShape(Long gid) {
		if (gid!=null){
			return openStreetMapDao.getShapeAsWKTByGId(gid);
		}
		return null;

	}


	/**
	 * @return the gid
	 */
	public String getGid() {
		return gid;
	}



	/**
	 * @param gid the gid to set
	 */
	public void setGid(String gid) {
		this.gid = gid;
	}


	/**
	 * @param openStreetMapDao the openStreetMapDao to set
	 */
	public void setOpenStreetMapDao(IOpenStreetMapDao openStreetMapDao) {
		this.openStreetMapDao = openStreetMapDao;
	}





	/**
	 * @return the errorRef
	 */
	public String getErrorRef() {
		return errorRef;
	}

	/**
	 * @return the result
	 */
	public OpenStreetMap getResult() {
		return result;
	}

	/**
	 * @return the errorMessage
	 */
	public String getErrorMessage() {
		return errorMessage;
	}

	/**
	 * @return the googleMapAPIKey
	 */
	public String getGoogleMapAPIKey() {
		return GisgraphyConfig.googleMapAPIKey == null ? "" : GisgraphyConfig.googleMapAPIKey;
	}


	public String getShape() {
		return shape;
	}


	public String getLat() {
		return lat;
	}


	public void setLat(String lat) {
		this.lat = lat;
	}


	public String getLng() {
		return lng;
	}


	public void setLng(String lng) {
		this.lng = lng;
	}


}