Examples of com.sun.enterprise.ee.synchronization.store.SynchronizationMemento

Package com.sun.enterprise.ee.synchronization.store

Examples of com.sun.enterprise.ee.synchronization.store.SynchronizationMemento

com.sun.enterprise.ee.synchronization.store.SynchronizationMemento
Saves a snapshot of the internal state of a synchronization response. This is called prior to rendering the response in the instance cache. This allows to go back to the previously saved state of the originator if necessary. @author Satish Viswanatham @author Nazrul Islam @since JDK1.4

        Command cGet = getGetCommand();
        cGet.execute();
        _response = (SynchronizationResponse) cGet.getResult();
        
        // saves the previous state before rendering the new response
        _memento = new SynchronizationMemento(_response);
        _memento.saveState();


        // renders the response into the local file cache
        Command cProcess = getResponseCommand();
        cProcess.execute();

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    private void testSaveRollback(boolean dir) {


        try {
            // synchronization memento
            SynchronizationResponse res = getResponseObj(dir, null);
            SynchronizationMemento m = new SynchronizationMemento(res);
            SynchronizationRequest[] req = res.getReply();
            SynchronizationRequest r = req[0];


            // synchronized file
            File f = new File( r.getFileName() );


            if (dir) {
                System.out.println("Memento Directory: " + f.getPath());
            } else {
                System.out.println("Memento File: " + f.getPath());
            }


            // ensures that the file exists
            assertTrue( f.exists() );


            // create a backup
            m.saveState();


            // ensures that the backup exists
            assertTrue( getBackupFile(f).exists() );
            System.out.println("Memento after backup: " 
                + getBackupFile(f).getPath());


            // rollback
            m.rollback();


            // ensures that the original file exists
            assertTrue( f.exists() );
            assertFalse( getBackupFile(f).exists() );
            System.out.println("Memento after rollback: " + f.getPath());

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            File tmpFile = new File(tmpName);
            tmpFile.mkdirs();


            // synchronization memento
            SynchronizationResponse res = getResponseObj(true, tmpName);
            SynchronizationMemento m = new SynchronizationMemento(res);


            // populate the dir
            RandomDirTree tree = new RandomDirTree(tmpName);
            tree.populate(true);
            InventoryMgr iMgr = new InventoryMgr(tmpFile);
            List inventory = iMgr.getInventory();


            System.out.println("Number of files in directory [" +tmpName+ "]: "
                + inventory.size());


            // saves a snapshot in memento
            m.saveState();


            // populates the new dir
            RandomFileMover mover = 
                new RandomFileMover(getBackupFile(tmpFile),tmpFile,copyEnabled);
            mover.move();
            List moved = mover.getMoveList();
            List copied = mover.getCopyList();


            System.out.println("Number of files moved to directory [" 
                + getBackupFile(tmpFile) + "]: " + moved.size());
        
            System.out.println("Number of files copied to directory [" 
                + getBackupFile(tmpFile) + "]: " + copied.size());
        
            // merges the two trees
            m.commit();


            List newInventory = iMgr.getInventory();


            System.out.println("Number of files in directory [" 
                + tmpFile + "]: " + newInventory.size());

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com.sun.enterprise.ee.synchronization.BaseRequestMediator

com.sun.enterprise.ee.synchronization.store.SynchronizationMementoTest

java.io.File

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