com.gisgraphy.webapp.action.DisplayStreetAction.java Source code

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Here is the source code for com.gisgraphy.webapp.action.DisplayStreetAction.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.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;
    }

}