/* * Copyright 2004-2005 Sun Microsystems, Inc.  All rights reserved. * Use is subject to license terms. */package samples.jndi.external.share;import java.util.Properties;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.util.Map;import java.util.Map.Entry;import java.util.Iterator;import javax.naming.*;import javax.naming.directory.DirContext;import javax.naming.directory.InitialDirContext;import javax.naming.directory.BasicAttributes;public class ExternalRepositoryImpl     implements ExternalRepository, Referenceable {    private Properties properties;    public ExternalRepositoryImpl(Properties properties)     {        this.properties = properties;    }    public Reference getReference()     {        Reference reference = null;        try         {            // Store the properties as an array of bytes.            ByteArrayOutputStream bytearrayoutputstream = new ByteArrayOutputStream();            properties.store(bytearrayoutputstream, null);            // Create a reference to the itself.            reference = new Reference(ExternalRepositoryImpl.class.getName(),                                        new BinaryRefAddr("properties", bytearrayoutputstream.toByteArray()),                                        ExternalRepositoryImplFactory.class.getName(),                                        null);        }        catch (Exception exception) {            exception.printStackTrace();        }        return reference;    }    public void storeObject(Object object, String objectName, Map map)     {        try         {            // Use the properties to establish an initial directory context.	    DirContext dircontext = new InitialDirContext(properties);            // Create an iterator contains all of the entries in the map.            Iterator iterator = map.entrySet().iterator();            // For each entry, create an attribute.            BasicAttributes basicattributes = new BasicAttributes();            while (iterator.hasNext())             {                Map.Entry entry = (Map.Entry)iterator.next();                basicattributes.put(entry.getKey().toString(), entry.getValue().toString());            }            // Bind the object to the specified name.	    dircontext.rebind("cn=" + objectName, object, basicattributes);            // Close the context.	    dircontext.close();        }        catch (Exception exception) {            System.out.println("ExternalRepository::storeObject caught an exception");            exception.printStackTrace();        }    }    public Object retrieveObject(String objectName)     {        Object object = null;        try         {            // Use the properties to establish an initial directory context.	    DirContext dircontext = new InitialDirContext(properties);            // Lookup the object using the specified name.            object = dircontext.lookup("cn=" + objectName);            // Close the context.	    dircontext.close();        } catch (NameNotFoundException nnfe) {            System.out.println("ExternalRepository::retrieveObject caught a NameNotFoundException");            System.out.println("Object: " + objectName + " is not stored in this repository");            //nnfe.printStackTrace();        } catch (Exception exception) {            System.out.println("ExternalRepository::retrieveObject caught an exception");            exception.printStackTrace();        }        return object;    }}