1 // Decompiled by Jad v1.5.8g. Copyright 2001 Pavel Kouznetsov.  2 // Jad home page: http://www.kpdus.com/jad.html  3 // Decompiler options: packimports(3)   4 // Source File Name:   Persistence.java  5   6 package javax.persistence;  7   8 import java.io.*;  9 import java.net.URL; 10 import java.util.*; 11 import java.util.regex.Matcher; 12 import java.util.regex.Pattern; 13 import javax.persistence.spi.PersistenceProvider; 14  15 // Referenced classes of package javax.persistence: 16 //            PersistenceException, EntityManagerFactory 17  18 public class Persistence 19 { 20  21     public Persistence() 22     { 23     } 24  25     public static EntityManagerFactory createEntityManagerFactory(String persistenceUnitName) 26     { 27         return createEntityManagerFactory(persistenceUnitName, null); 28     } 29  30     public static EntityManagerFactory createEntityManagerFactory(String persistenceUnitName, Map properties) 31     { 32         EntityManagerFactory emf = null; 33         if(providers.size() == 0) 34             findAllProviders(); 35         Iterator i$ = providers.iterator(); 36         do 37         { 38             if(!i$.hasNext()) 39                 break; 40             PersistenceProvider provider = (PersistenceProvider)i$.next(); 41             emf = provider.createEntityManagerFactory(persistenceUnitName, properties); 42         } while(emf == null); 43         if(emf == null) 44             throw new PersistenceException((new StringBuilder()).append("No Persistence provider for EntityManager named ").append(persistenceUnitName).toString()); 45         else 46             return emf; 47     } 48  49     private static void findAllProviders() 50     { 51         ClassLoader loader; 52         Enumeration resources; 53         Set names; 54         loader = Thread.currentThread().getContextClassLoader(); 55         resources = loader.getResources((new StringBuilder()).append("META-INF/services/").append(javax/persistence/spi/PersistenceProvider.getName()).toString()); 56         names = new HashSet(); 57 _L2: 58         InputStream is; 59         if(!resources.hasMoreElements()) 60             break; /* Loop/switch isn't completed */ 61         URL url = (URL)resources.nextElement(); 62         is = url.openStream(); 63         names.addAll(providerNamesFromReader(new BufferedReader(new InputStreamReader(is)))); 64         is.close(); 65         if(true) goto _L2; else goto _L1 66         Exception exception; 67         exception; 68         is.close(); 69         throw exception; 70 _L1: 71         Class providerClass; 72         for(Iterator i$ = names.iterator(); i$.hasNext(); providers.add((PersistenceProvider)providerClass.newInstance())) 73         { 74             String s = (String)i$.next(); 75             providerClass = loader.loadClass(s); 76         } 77  78         break MISSING_BLOCK_LABEL_214; 79         IOException e; 80         e; 81         throw new PersistenceException(e); 82         e; 83         throw new PersistenceException(e); 84         e; 85         throw new PersistenceException(e); 86         e; 87         throw new PersistenceException(e); 88     } 89  90     private static Set providerNamesFromReader(BufferedReader reader) 91         throws IOException 92     { 93         Set names = new HashSet(); 94         do 95         { 96             String line; 97             if((line = reader.readLine()) == null) 98                 break; 99             line = line.trim();100             Matcher m = nonCommentPattern.matcher(line);101             if(m.find())102                 names.add(m.group().trim());103         } while(true);104         return names;105     }106 107     public static final String PERSISTENCE_PROVIDER = "javax.persistence.spi.PeristenceProvider";108     protected static final Set providers = new HashSet();109     private static final Pattern nonCommentPattern = Pattern.compile("^([^#]+)");110 111 }