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@Path("/birdslist")
public class BirdsList extends Birds {

    @GET
    @Path("/all")
    @Produces("text/html")
    public String all() {
        Iterator iterator = birdnames.keySet().iterator();
        String page = "<html><title>All Birds</title><body>";
        page += "<p>This is the list of all birds. <br> Click the taxonomy number of the bird you wish to view in detail.</p>";
        while(iterator.hasNext()){
            Object key = iterator.next();
            String value = birdnames.get(key);
        }
        for (String key : birdnames.keySet()) {
            page += String.format("<p>Name:%s <br> Taxonomy Number:<a href=%s>%s</a></p>",birdnames.get(key),key,key);
            getBird(key);
        }
        page += "</body></html>";
        return page;
    }

    @GET
    System.out.println;
    @Path("{key}")
    System.out.println;
    @Produces("text/html")
    public String getBird(@PathParam("key") String key) {
        Object fam = 0;
        Object ord = 0;
        HashSet set1;
        HashSet set2;
        for (String key2 : family.keySet()){
            set1 = family.get(key2);
            if(set1.contains(key) == true){
                fam = key2;
                break;
            }
        }
        for (String key3 : order.keySet()){
            set2 = family.get(key3);
            if(set2.contains(key) == true){
                ord = key3;
                break;
            }
        }
        String page = "<html><title>Bird #: {key}</title><body>";
        page += String.format("<p>%s</p>",key);
        page += String.format("<p>This page contains info on the %s</p>",birdnames.get(key));
        page += String.format("<p>Name:%s <br> Taxonomy Number:%s <br> Family:%s <br> Order:%s</p>",birdnames.get(key),key,fam,ord);
        page += "<p>Please click <a href=all>here</a> to return to the list of all birds.</p>";
        page += "</body></html>";
        return page;
    }
}

public Birds() {
    // long path to eBirds assuming Maven "mvn exec:java" is many levels up
    String fileName = "src/main/java/com/example/rest/eBirds.csv";
    boolean firstLine = true;
    this.birdnames = new HashMap<String,String>();
    this.family =  new HashMap<String,HashSet<String>>();
    this.order  =  new HashMap<String,HashSet<String>>();
    try {
      BufferedReader R = new BufferedReader(new FileReader(fileName));
      String line;
      while (true) {
        line = R.readLine();
        if (line == null) break;
        if (firstLine) { // ignore the first line, it's not a bird
          firstLine = false;
          continue;
          }
        String[] fields = line.split(",");
        if (!fields[1].equalsIgnoreCase("species")) continue;  // ignore all but species records
        birdnames.put(fields[0],fields[4]);    // add this bird to name table

        // extract the order name from fields[6]
        String ordername = fields[6];
        if (!order.containsKey(ordername)) { // if needed, create first-time order set
          order.put(ordername,new HashSet<String>());
          }
        order.get(ordername).add(fields[0]);  // new order member by number for lookup

        // extract the family name from fields[7] -- removing quotes first if needed
        String famname = fields[7].replace(""","");
        if (!family.containsKey(famname)) { // if needed, create first-time family set
          family.put(famname,new HashSet<String>());
          }
        family.get(famname).add(fields[0]);  // new family member by number for lookup
        }
      }
    catch (IOException e) { System.out.println("Stack trace: " + e); }
    }