Android Open Source - WATisRain Map

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Back to project page WATisRain.

License

The source code is released under:

MIT License

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Java Source Code

package com.lucky.watisrain.backend.data;
/*  w  w w.  ja va  2s .  c  o  m*/
import java.util.ArrayList;
import java.util.List;

import com.lucky.watisrain.backend.Util;

/**
 * A Map contains a set of Locations and Paths. It represents the graph data.
 */
public class Map {

  private List<Building> buildings;
  
  // all locations, active and passive
  private List<Location> locations;
  
  private List<Path> paths;
  
  /**
   * Initialize empty Map object
   */
  public Map(){
    buildings = new ArrayList<>();
    locations = new ArrayList<>();
    paths = new ArrayList<>();
  }
  
  /*
   * Add all floors of a building, and all its stairs
   */
  public void addBuilding(Building building){
    buildings.add(building);
    locations.addAll(building.getAllFloors());
    paths.addAll(building.getAllStairs());
  }
  
  public void addPath(Path path){
    paths.add(path);
  }
  
  public void addPassiveLocation(Location loc){
    locations.add(loc);
  }
  
  /**
   * Return all of the paths in the graph
   */
  public List<Path> getPaths(){
    return paths;
  }
  
  /**
   * Fetch the path object between two Locations, if exists.
   * Otherwise, return null
   */
  public Path retrievePath(Location a, Location b){
    for(Path path : paths){
      if(path.getPointA().equals(a) && path.getPointB().equals(b))
        return path;
      if(path.getPointA().equals(b) && path.getPointB().equals(a))
        return path;
    }
    return null;
  }
  
  public List<Location> getLocations(){
    return locations;
  }
  
  public List<Building> getBuildings(){
    return buildings;
  }
  
  
  /**
   * Given the unique identifier of a building, return the Building object
   */
  public Building getBuildingByID(String name){
    for(Building building : buildings){
      if(building.getName().equals(name))
        return building;
    }
    return null;
  }
  
  
  /**
   * Try to fetch some form of location from a string by trying a variety
   * of methods
   */
  public Location getLocationByID(String name){
    
    // Attempt to parse as building
    Building building = getBuildingByID(name);
    if(building != null)
      return building.getMainFloor();
    
    // Attempt to parse as-is (usually combined ID)
    for(Location loc : locations){
      if(loc.getName().equals(name))
        return loc;
    }
    
    // Final attempt: parse only the building half
    String partBuilding = Util.getBuilding(name);
    for(Location loc : locations){
      if(loc.getName().equals(partBuilding))
        return loc;
    }
    
    return null;
  }
  
  
  /**
   * Debugging purposes
   */
  public void printDataToStdout(){
    
    System.out.println("Buildings:");
    for(Building b : buildings){
      System.out.println(b);
    }
    System.out.println();
    
    System.out.println("Locations:");
    for(Location l : locations){
      System.out.println(l);
    }
    System.out.println();
    
    System.out.println("Paths:");
    for(Path p : paths){
      System.out.println(p);
    }
    System.out.println();
    
  }
  
}

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