/** * Copyright (c) 2003-2005, David A. Czarnecki * All rights reserved. * * Portions Copyright (c) 2003-2005 by Mark Lussier * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of the "David A. Czarnecki" and "blojsom" nor the names of * its contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * Products derived from this software may not be called "blojsom", * nor may "blojsom" appear in their name, without prior written permission of * David A. Czarnecki. * * 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 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO * EVENT SHALL THE COPYRIGHT OWNER 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. */ package org.blojsom.plugin.weather.beans; import org.w3c.dom.Document; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import java.text.MessageFormat; /** * NWSInformation * * @author Mark Lussier * @version $Id: NWSInformation.java,v 1.1.2.1 2005/07/21 04:30:46 johnan Exp $ * @since Blojsom 2.23 */ public class NWSInformation implements WeatherInformation { public static final String NWS_URL_FORMAT = "http://www.nws.noaa.gov/data/current_obs/{0}.xml"; public static final String TAG_CREDIT = "credit"; public static final String TAG_CREDIT_URL = "credit_URL"; public static final String TAG_LOCATION = "location"; public static final String TAG_OBSERVATION = "observation_time"; public static final String TAG_WEATHER = "weather"; public static final String TAG_TEMP_STRING = "temperature_string"; public static final String TAG_TEMP_F = "temp_f"; public static final String TAG_TEMP_C = "temp_c"; public static final String TAG_HUMIDITY = "relative_humidity"; public static final String TAG_WIND_STRING = "wind_string"; public static final String TAG_WIND_DIRECTION = "wind_dir"; public static final String TAG_WIND_DEGREES = "wind_degrees"; public static final String TAG_WIND_MPH = "wind_mph"; public static final String TAG_WIND_GUST_MPH = "wind_gust_mph"; public static final String TAG_STATION = "station_id"; public static final String TAG_VISIBILITY = "visibility"; public static final String TAG_HISTORY = "two_day_history_url"; private String _temperatureF = "-0 F"; private String _temperatureC = "-0 C"; private String _stationCode = ""; private String _location = "a"; private String _visibility = ""; private String _wind = ""; private String _history = "#"; private Document _document; /** * Public Constructor * * @param stationCode The Provider Station Id */ public NWSInformation(String stationCode) { _stationCode = stationCode; } /** * Parse an XML document containing weather related information * * @param document XML document with weather information */ public void parseDocument(Document document) { _document = document; _temperatureC = getValueOfTag(TAG_TEMP_C); _temperatureF = getValueOfTag(TAG_TEMP_F); _stationCode = getValueOfTag(TAG_STATION); _location = getValueOfTag(TAG_LOCATION); _visibility = getValueOfTag(TAG_VISIBILITY); _wind = getValueOfTag(TAG_WIND_STRING); _history = getValueOfTag(TAG_HISTORY); } /** * Get Contents of a Tag in the Weather Data * * @param tag The Tag Name * @return Value of the Element as a String */ private String getValueOfTag(String tag) { String result = null; NodeList nodeList = _document.getElementsByTagName(tag); if (nodeList != null) { Node tempNode = nodeList.item(0); Node value = tempNode.getFirstChild(); if (value != null) { result = value.getNodeValue(); } } return result; } /** * Get the Location of the Weather Station * * @return The Weather Station name as a String */ public String getLocation() { return _location; } /** * Get the Station Id * * @return The Station Id as a String */ public String getStationCode() { return _stationCode; } /** * Get the current temperature as Farenheit * * @return A String containing the current temperature in Farenheit */ public String getFahrenheit() { return _temperatureF + " F"; } /** * Get the current temperate as Celcius * * @return A String containing the current temperature as Celcius */ public String getCelcius() { return _temperatureC + " C"; } /** * Get the current Visibility * * @return The current visbility as a String */ public String getVisibility() { return _visibility; } /** * Get the current Wind conditions * * @return The current wind conditions as a String */ public String getWind() { return _wind; } /** * Get the URL containing a link to weather history information * * @return URL for weather history information */ public String getHistoryUrl() { return _history; } /** * Gets the URL required to fetch this resource * * @return The resource location as a String */ public String getProviderUrl() { return MessageFormat.format(NWS_URL_FORMAT, new Object[]{_stationCode}); } /** * Get the value for a given tag from the parsed XML weather information * * @param tag Tag to retrieve * @return Value of tag or <code>null</code> if the tag is not present * @since blojsom 2.24 */ public String getValueForTag(String tag) { return getValueOfTag(tag); } }