PrevaylerRegistryFactory


1   package org.sapia.regis.prevayler;
2   
3   import java.io.File  ;
4   import java.util.Properties  ;
5   
6   import org.sapia.regis.Registry;
7   import org.sapia.regis.RegistryFactory;
8   
9   public class PrevaylerRegistryFactory implements RegistryFactory{
10  
11    /**
12     * This constant corresponds to the base directory where the registry's persistent state will
13     * be kept. 
14     */
15    public static final String   BASE_DIR           = "org.sapia.regis.prevayler.basedir";
16    
17    /**
18     * This constant indicates if the content of the registry's persistent directory should
19     * be deleted at startup. 
20     */
21    public static final String   DELETE_ON_STARTUP  = "org.sapia.regis.prevayler.deleteOnStartup";
22    
23    /**
24     * This corresponds to the default base directory of the registry's persistent state (the
25     * directory is ${user.home}/.sapia_regis_prevayler).
26     */
27    public static final String   DEFAULT_BASE_DIR   = System.getProperty("user.home")+File.separator+".sapia_regis_prevayler";
28    
29    public Registry connect(Properties   props) throws Exception   {
30      String   baseDir = props.getProperty(BASE_DIR, DEFAULT_BASE_DIR);
31      String   deleteOnStartup = props.getProperty(DELETE_ON_STARTUP, "false");    
32      File   fBaseDir = new File  (baseDir);
33      fBaseDir.mkdirs();
34      PrevaylerRegistry registry = new PrevaylerRegistry(fBaseDir.getAbsolutePath(), 
35          new Boolean  (deleteOnStartup).booleanValue());
36      return registry;
37    }
38  }
39

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