Java tutorial
/* * Copyright 2015-present Stephen Colebourne * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.joda.railmodel; import static org.joda.railmodel.Stations.*; import java.io.File; import java.nio.charset.StandardCharsets; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import com.google.common.base.Joiner; import com.google.common.collect.ImmutableList; import com.google.common.io.Files; /** * Calculates journey times for SW London with Crossrail 2 in place. */ public class Crossrail2SwirlNorthernSWLondonModel extends BaseLondonModel { public static void main(String[] args) throws Exception { Crossrail2SwirlNorthernSWLondonModel model = new Crossrail2SwirlNorthernSWLondonModel(); ImmutableList<Station> starts = ImmutableList.of(CSS, LHD, EPS, SNL, WCP, MOT, SHP, FLW, KNG, HMC, SUR, NEM, RAY, WIM, EAD, UMD, USW, UTB, BAL, SRH, STE); ImmutableList<Station> ends = ImmutableList.of(VIC, TCR, EUS, AGL, WAT, UGP, UOX, BDS, CHX, ULS, UGS, UWS, UBS, UWM, UTM, ZFD, UBH, LBG, UBK, MOG, UOS, UHL, UCL, USP, CWF); List<String> output = new ArrayList<>(); output.add("Modelling for SW London with Crossrail 2 Swirl plus Northern Line extension" + NEWLINE); output.add("===========================================================================" + NEWLINE); output.add( "This uses CR2 via Earlsfield based on the [Swirl plan](http://ukrail.blogspot.co.uk/2015/11/crossrail-2-swirl.html)," + " with best efforts guesses of interchange times." + NEWLINE); output.add("It then changes Chelsea to Battersea Power, and adds a Northern Line extension from " + "Battersea Power to Balham with one intermediate stop." + NEWLINE); output.add("Trains from Morden run via Battersea Power to the West End." + NEWLINE); output.add("Trains from Balham run via Stockwell to the City." + NEWLINE); output.add(NEWLINE); appendDocs(output); appendTotals(output, starts, ends, model); appendSeparator(output); for (Iterator<Station> it = starts.iterator(); it.hasNext();) { Station start = it.next(); for (Station end : ends) { String explain = model.explain(start, end); output.add(explain); output.add(NEWLINE); } if (it.hasNext()) { appendSeparator(output); } } appendStations(output); output.add(NEWLINE); output.add("Feel free to send a pull request for errors and enhancments!" + NEWLINE); File file = new File("CR2-SwirlNorthern-SWLondon.md"); String result = Joiner.on("").join(output); Files.write(result, file, StandardCharsets.UTF_8); System.out.println(result); } Crossrail2SwirlNorthernSWLondonModel() { setup(); } private void setup() { // WAT Route wimwat = Route.of("SWML", "WIM-WAT", 18, stations(WIM, CLJ), times(6), SWML_CLJ_WAT_18); // 4tph from Twickenham/Loop Route twiwat = Route.of("SWML", "TWI-WAT", 4, stations(TWI, KNG, NEM, WIM), times(14, 7, 7), wimwat); // 4tph from Dorking/Guildford Route lhdwat = Route.of("SWML", "LHD-WAT", 4, stations(LHD, EPS, WCP, WIM), times(8, 7, 10), wimwat); // 10tph Surbiton Route surwat = Route.of("SWML", "SUR-WAT (SUR-WIM-CLJ-VXH-WAT)", 10, stations(SUR, WIM), times(7), wimwat); addRoute(twiwat); addRoute(lhdwat); addRoute(surwat); // CR2 // CLJ-CKR known as 3 mins // CKR-VIC and VIC-TCR are similar distances Route wimagl = Route.of("CR2", "CR2", 30, stations(WIM, EAD, CLJ, BPW, VIC), times(3, 3, 3, 3), CR2_VIC_AGL); Route rayagl = Route.of("CR2", "CR2", 24, stations(RAY, WIM), times(4), wimagl); Route nemagl = Route.of("CR2", "CR2", 12, stations(NEM, RAY), times(3), rayagl); Route motagl = Route.of("CR2", "CR2", 12, stations(MOT, RAY), times(3), rayagl); Route kngagl = Route.of("CR2", "CR2", 8, stations(KNG, NEM), times(7), nemagl); Route shpagl = Route.of("CR2", "CR2", 6, stations(SHP, FLW, KNG), times(13, 10), kngagl); Route hmcagl = Route.of("CR2", "CR2", 4, stations(HMC, SUR, NEM), times(8, 5), nemagl); Route cssagl = Route.of("CR2", "CR2", 6, stations(CSS, MOT), times(11), motagl); Route epsagl = Route.of("CR2", "CR2", 6, stations(EPS, SNL, WCP, MOT), times(5, 3, 3), motagl); addRoute(shpagl); addRoute(kngagl); addRoute(hmcagl); addRoute(cssagl); addRoute(epsagl); // Southern addRoute(SOUTHERN_BAL_VIC); addRoute(SOUTHERN_SRH_VIC); addRoute(THAMESLINK_EPH_ZFD); addRoute(THAMESLINK_STE_ZFD); addRoute(SOUTHERN_STE_LBG); addRoute(SOUTHEAST_HNH_VIC); // Tube lines Route unortherncity = Route.of("Northern (City)", "Northern (City)", 30, stations(BAL, UCS, UST, UKN, EPH, UBH, LBG, UBK, MOG, UOS, AGL, STP, EUS), times(2, 5, 5, 2, 1, 2, 2, 2, 1, 3, 2, 2)); Route unortherncitysb = Route.of("Northern (City)", "Northern (City) Southbound", 30, stations(EUS, STP, AGL, UOS, MOG, UBK, LBG, UBH), times(2, 2, 3, 1, 2, 2, 2)); Route unorthernwest = Route.of("Northern (West End)", "Northern (West End)", 30, stations(UMD, USW, UTB, BAL, BPW), times(2, 4, 4, 6), NORTHERN_WEST_NB); addRoute(unortherncity); addRoute(unortherncitysb); addRoute(unorthernwest); addRoute(NORTHERN_WEST_SB); addRoute(VICTORIA_NB); addRoute(BAKERLOO_NB); addRoute(JUBILEE_EB); addRoute(JUBILEE_NB); addRoute(WNC_NB); addRoute(DISTRICT_EB); addRoute(CENTRAL_EB); addRoute(CENTRAL_WB); addRoute(CR1_EB); addRoute(CR1_WB); // change CR2 to WAT at SUR, assume 6 tracks between Surbiton and New Malden // gaps between fast trains work out at 4-6 mins with 10min gap twice an hour // assume a sensible timetable minimises interchange time addChange(Change.of(SUR, hmcagl, surwat, 3, 5)); // change at Wimbledon Change xwimwatcr2 = Change.of(WIM, wimwat, wimagl, 1, 4); Change xwimcr2wat = Change.of(WIM, wimagl, wimwat, 1, 4); addChange(xwimwatcr2); addChange(xwimcr2wat); // change at Balham addChange(Change.of(BAL, unorthernwest, SOUTHERN_BAL_VIC, 5, 11)); addChange(Change.of(BAL, unorthernwest, unortherncity, 1, 3)); // assume CPI // change at Battersea Power addChange(Change.of(BPW, NORTHERN_WEST_NB, wimagl, 3, 5)); addChange(Change.of(BPW, wimagl, NORTHERN_WEST_NB, 3, 5)); // change at Clapham Junction Change xcljwatcr2 = Change.of(CLJ, SWML_CLJ_WAT_18, wimagl, 4, 6); Change xcljcr2wat = Change.of(CLJ, wimagl, SWML_CLJ_WAT_18, 4, 6); addChange(xcljwatcr2); addChange(xcljcr2wat); addChange(Change.of(CLJ, SWML_CLJ_WAT_18, SOUTHERN_BAL_VIC, 4, 6)); addChange(Change.of(CLJ, SOUTHERN_BAL_VIC, wimagl, 4, 6)); addChange(Change.of(CLJ, SOUTHERN_BAL_VIC, SWML_CLJ_WAT_18, 4, 6)); // prefer change at RAY to WIM/CLJ if choice addPreferredChange(xwimwatcr2, xcljwatcr2); addPreferredChange(xwimcr2wat, xcljcr2wat); // change at Victoria addChange(Change.of(VIC, CR2_VIC_AGL, DISTRICT_EB, 4, 6)); addChange(Change.of(VIC, CR2_VIC_AGL, VICTORIA_NB, 4, 6)); addChange(Change.of(VIC, VICTORIA_NB, DISTRICT_EB, 4, 6)); addChange(Change.of(VIC, SOUTHERN_BAL_VIC, DISTRICT_EB, 4, 6)); addChange(Change.of(VIC, SOUTHERN_BAL_VIC, VICTORIA_NB, 4, 6)); addChange(Change.of(VIC, SOUTHEAST_HNH_VIC, DISTRICT_EB, 4, 6)); addChange(Change.of(VIC, SOUTHEAST_HNH_VIC, VICTORIA_NB, 4, 6)); // change at TCR addChange(Change.of(TCR, CR2_VIC_AGL, CR1_EB, 3, 5)); addChange(Change.of(TCR, CR2_VIC_AGL, CR1_WB, 3, 5)); addChange(Change.of(TCR, CR2_VIC_AGL, CENTRAL_EB, 4, 6)); addChange(Change.of(TCR, CR2_VIC_AGL, NORTHERN_WEST_NB, 3, 5)); addChange(Change.of(TCR, CR2_VIC_AGL, NORTHERN_WEST_SB, 3, 5)); // change at Euston (pointless, might as well change at Angel) // addChange(Change.of(EUS, wimagl, unortherncitysb, 4, 8)); // change at Angel addChange(Change.of(AGL, CR2_VIC_AGL, unortherncitysb, 3, 6)); commonChanges(unortherncity); } }