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

   1 package jp.sourceforge.stigmata.printer;
   2
   3 /*
   4  * $Id$
   5  */
   6
   7 import java.util.HashMap;
   8 import java.util.Iterator;
   9 import java.util.Map;
  10 import java.util.ServiceLoader;
  11
  12 import jp.sourceforge.stigmata.BirthmarkEnvironment;
  13 import jp.sourceforge.stigmata.printer.csv.CsvResultPrinterService;
  14 import jp.sourceforge.stigmata.spi.ResultPrinterSpi;
  15
  16 /**
  17  *
  18  * @author Haruaki TAMADA
  19  */
  20 public class PrinterManager{
  21     private static final PrinterManager manager = new PrinterManager();
  22     private ServiceLoader<ResultPrinterSpi> serviceLoader;
  23
  24     private Map<String, ResultPrinterSpi> formats = new HashMap<String, ResultPrinterSpi>();
  25
  26     private PrinterManager(){
  27         serviceLoader = ServiceLoader.load(ResultPrinterSpi.class);
  28         load();
  29     }
  30
  31     public void refresh(){
  32         serviceLoader.reload();
  33         load();
  34     }
  35
  36     public static void refresh(BirthmarkEnvironment env){
  37         PrinterManager instance = getInstance();
  38         instance.formats.clear();
  39         for(Iterator<ResultPrinterSpi> i = env.lookupProviders(ResultPrinterSpi.class); i.hasNext(); ){
  40             instance.addService(i.next());
  41         }
  42     }
  43
  44     public static ResultPrinterSpi getDefaultFormatService(){
  45         return new CsvResultPrinterService();
  46     }
  47
  48     public static PrinterManager getInstance(){
  49         return manager;
  50     }
  51
  52     public ResultPrinterSpi getService(String format){
  53         return formats.get(format);
  54     }
  55
  56     private void load(){
  57         formats.clear();
  58         for(Iterator<ResultPrinterSpi> i = serviceLoader.iterator(); i.hasNext(); ){
  59             ResultPrinterSpi spi = i.next();
  60             addService(spi);
  61         }
  62     }
  63
  64     private void addService(ResultPrinterSpi service){
  65         formats.put(service.getFormat(), service);
  66     }
  67 }