public-transport-enabler/src/de/schildbach/pte/TflProvider.java

/*
 * Copyright 2010 the original author or authors.
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package de.schildbach.pte;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.TimeZone;
import java.util.regex.Pattern;

import de.schildbach.pte.dto.Location;
import de.schildbach.pte.util.Color;
import de.schildbach.pte.util.ParserUtils;

/**
 * @author Andreas Schildbach
 */
public class TflProvider extends AbstractEfaProvider
{
	public static final NetworkId NETWORK_ID = NetworkId.TFL;
	public static final String OLD_NETWORK_ID = "journeyplanner.tfl.gov.uk";
	private static final String API_BASE = "http://journeyplanner.tfl.gov.uk/user/";

	public NetworkId id()
	{
		return NETWORK_ID;
	}

	@Override
	protected TimeZone timeZone()
	{
		return TimeZone.getTimeZone("Europe/London");
	}

	public boolean hasCapabilities(final Capability... capabilities)
	{
		for (final Capability capability : capabilities)
			if (capability == Capability.DEPARTURES || capability == Capability.CONNECTIONS)
				return true;

		return false;
	}

	private static final String AUTOCOMPLETE_URI = API_BASE
			+ "XSLT_TRIP_REQUEST2?outputFormat=XML&coordOutputFormat=WGS84&locationServerActive=1&type_origin=any&name_origin=%s";

	@Override
	protected String autocompleteUri(CharSequence constraint)
	{
		return String.format(AUTOCOMPLETE_URI, ParserUtils.urlEncode(constraint.toString(), "ISO-8859-1"));
	}

	private static final String NEARBY_STATION_URI = API_BASE
			+ "XSLT_DM_REQUEST?outputFormat=XML&coordOutputFormat=WGS84&name_dm=%s&type_dm=stop&itOptionsActive=1&ptOptionsActive=1&useProxFootSearch=1&mergeDep=1&useAllStops=1&mode=direct";

	@Override
	protected String nearbyStationUri(final String stationId)
	{
		return String.format(NEARBY_STATION_URI, ParserUtils.urlEncode(stationId, "ISO-8859-1"));
	}

	@Override
	protected String nearbyLatLonUri(int lat, int lon)
	{
		return null;
	}

	@Override
	protected String departuresQueryUri(final String stationId, final int maxDepartures)
	{
		final StringBuilder uri = new StringBuilder();
		uri.append(API_BASE).append("XSLT_DM_REQUEST");
		uri.append("?outputFormat=XML");
		uri.append("&coordOutputFormat=WGS84");
		uri.append("&type_dm=stop");
		uri.append("&name_dm=").append(stationId);
		uri.append("&mode=direct");
		uri.append("&useRealtime=1");
		return uri.toString();
	}

	private static final Pattern P_LINE_Y = Pattern.compile("\\d+Y");

	@Override
	protected String parseLine(final String mot, final String name, final String longName, final String noTrainName)
	{
		if (P_LINE_Y.matcher(name).matches())
			return "?" + name;
		else
			return super.parseLine(mot, name, longName, noTrainName);
	}

	@Override
	protected String connectionsQueryUri(final Location from, final Location via, final Location to, final Date date, final boolean dep,
			final String products, final WalkSpeed walkSpeed)
	{
		final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyyMMdd");
		final DateFormat TIME_FORMAT = new SimpleDateFormat("HHmm");

		final StringBuilder uri = new StringBuilder();
		uri.append(API_BASE);
		uri.append("XSLT_TRIP_REQUEST2");

		uri.append("?language=de");
		appendCommonConnectionParams(uri);

		appendLocation(uri, from, "origin");
		appendLocation(uri, to, "destination");
		if (via != null)
			appendLocation(uri, via, "via");

		uri.append("&itdDate=").append(ParserUtils.urlEncode(DATE_FORMAT.format(date)));
		uri.append("&itdTime=").append(ParserUtils.urlEncode(TIME_FORMAT.format(date)));
		uri.append("&itdTripDateTimeDepArr=").append(dep ? "dep" : "arr");

		uri.append("&ptOptionsActive=1");
		uri.append("&changeSpeed=").append(WALKSPEED_MAP.get(walkSpeed));
		uri.append(productParams(products));

		uri.append("&locationServerActive=1");
		uri.append("&useRealtime=1");

		return uri.toString();
	}

	@Override
	protected String commandLink(final String sessionId, final String command)
	{
		final StringBuilder uri = new StringBuilder();
		uri.append(API_BASE);
		uri.append("XSLT_TRIP_REQUEST2");
		uri.append("?sessionID=").append(sessionId);
		appendCommonConnectionParams(uri);
		uri.append("&command=").append(command);
		return uri.toString();
	}

	private static final Map<String, int[]> LINES = new HashMap<String, int[]>();

	static
	{
		// London
		LINES.put("UBakerloo", new int[] { Color.parseColor("#9D5324"), Color.WHITE });
		LINES.put("UCentral", new int[] { Color.parseColor("#D52B1E"), Color.WHITE });
		LINES.put("UCircle", new int[] { Color.parseColor("#FECB00"), Color.BLACK });
		LINES.put("UDistrict", new int[] { Color.parseColor("#007934"), Color.WHITE });
		LINES.put("UEast London", new int[] { Color.parseColor("#FFA100"), Color.WHITE });
		LINES.put("UHammersmith & City", new int[] { Color.parseColor("#C5858F"), Color.BLACK });
		LINES.put("UJubilee", new int[] { Color.parseColor("#818A8F"), Color.WHITE });
		LINES.put("UMetropolitan", new int[] { Color.parseColor("#850057"), Color.WHITE });
		LINES.put("UNorthern", new int[] { Color.BLACK, Color.WHITE });
		LINES.put("UPicadilly", new int[] { Color.parseColor("#0018A8"), Color.WHITE });
		LINES.put("UVictoria", new int[] { Color.parseColor("#00A1DE"), Color.WHITE });
		LINES.put("UWaterloo & City", new int[] { Color.parseColor("#76D2B6"), Color.BLACK });

		LINES.put("SDLR", new int[] { Color.WHITE, Color.parseColor("#00B2A9") });

		LINES.put("TTramlink 1", new int[] { Color.rgb(193, 215, 46), Color.WHITE });
		LINES.put("TTramlink 2", new int[] { Color.rgb(193, 215, 46), Color.WHITE });
		LINES.put("TTramlink 3", new int[] { Color.rgb(124, 194, 66), Color.BLACK });
	}

	@Override
	public int[] lineColors(final String line)
	{
		final int[] lineColors = LINES.get(line);
		if (lineColors != null)
			return lineColors;
		else
			return super.lineColors(line);
	}
}