OPENDJ-1602 New pluggable storage based backend

Jean-Noel Rouvignac

19.52.2014 7bc10ef426f7701c51eb1e9abcccb0e90540c6e5

OPENDJ-1602 New pluggable storage based backend

Various fixes for when running unit tests.

PersistItStorage.java:
Fixed truncateTree() to truncate the tree instead of the whole volume!!

EntryContainer.java:
In search(), restored previous behaviour with regards to exceptions.

 opendj-sdk/opendj3-server-dev/src/server/org/opends/server/backends/persistit/PersistItStorage.java

@@ -259,7 +259,7 @@
        @Override
        public void truncateTree(TreeName treeName) {
            try {
                volume.truncate();
                getExchange(treeName).removeAll();
            } catch (PersistitException e) {
                throw new StorageRuntimeException(e);
            }

 opendj-sdk/opendj3-server-dev/src/server/org/opends/server/backends/pluggable/EntryContainer.java

@@ -1092,7 +1092,36 @@
    }
    catch (Exception e)
    {
      throw new StorageRuntimeException(e);
      throwAllowedExceptionTypes(e, DirectoryException.class, CanceledOperationException.class);
    }
  }

  private <E1 extends Exception, E2 extends Exception>
      void throwAllowedExceptionTypes(Exception e, Class<E1> clazz1, Class<E2> clazz2)
          throws E1, E2
  {
    throwIfPossible(e, clazz1, clazz2);
    if (e.getCause() != null)
    {
      throwIfPossible(e.getCause(), clazz1, clazz2);
    }
    else if (e instanceof StorageRuntimeException)
    {
      throw (StorageRuntimeException) e;
    }
    throw new StorageRuntimeException(e);
  }

  private <E1 extends Exception, E2 extends Exception> void throwIfPossible(final Throwable cause, Class<E1> clazz1,
      Class<E2> clazz2) throws E1, E2
  {
    if (clazz1.isAssignableFrom(cause.getClass()))
    {
      throw clazz1.cast(cause);
    }
    else if (clazz2.isAssignableFrom(cause.getClass()))
    {
      throw clazz2.cast(cause);
    }
  }