src/main/java/jp/sourceforge/stigmata/printer/PrinterManager.java

   1 package jp.sourceforge.stigmata.printer;
   2
   3 import java.util.HashMap;
   4 import java.util.Iterator;
   5 import java.util.Map;
   6 import java.util.ServiceLoader;
   7
   8 import jp.sourceforge.stigmata.BirthmarkEnvironment;
   9 import jp.sourceforge.stigmata.printer.csv.CsvResultPrinterService;
  10 import jp.sourceforge.stigmata.spi.ResultPrinterSpi;
  11
  12 /**
  13  *
  14  * @author Haruaki TAMADA
  15  */
  16 public class PrinterManager{
  17     private static final PrinterManager manager = new PrinterManager();
  18     private ServiceLoader<ResultPrinterSpi> serviceLoader;
  19
  20     private Map<String, ResultPrinterSpi> formats = new HashMap<String, ResultPrinterSpi>();
  21
  22     private PrinterManager(){
  23         serviceLoader = ServiceLoader.load(ResultPrinterSpi.class);
  24         load();
  25     }
  26
  27     public void refresh(){
  28         serviceLoader.reload();
  29         load();
  30     }
  31
  32     public static void refresh(BirthmarkEnvironment env){
  33         PrinterManager instance = getInstance();
  34         instance.formats.clear();
  35         for(Iterator<ResultPrinterSpi> i = env.lookupProviders(ResultPrinterSpi.class); i.hasNext(); ){
  36             instance.addService(i.next());
  37         }
  38     }
  39
  40     public static ResultPrinterSpi getDefaultFormatService(){
  41         return new CsvResultPrinterService();
  42     }
  43
  44     public static PrinterManager getInstance(){
  45         return manager;
  46     }
  47
  48     public ResultPrinterSpi getService(String format){
  49         return formats.get(format);
  50     }
  51
  52     private void load(){
  53         formats.clear();
  54         for(Iterator<ResultPrinterSpi> i = serviceLoader.iterator(); i.hasNext(); ){
  55             ResultPrinterSpi spi = i.next();
  56             addService(spi);
  57         }
  58     }
  59
  60     private void addService(ResultPrinterSpi service){
  61         formats.put(service.getFormat(), service);
  62     }
  63 }