opendaylight/md-sal/sal-binding-broker/src/main/java/org/opendaylight/controller/md/sal/binding/impl/AbstractReadWriteTransaction.java

   1 /*
   2  * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.md.sal.binding.impl;
   9
  10 import java.util.ArrayList;
  11 import java.util.Iterator;
  12 import java.util.List;
  13 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  14 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  15 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationException;
  16 import org.opendaylight.controller.md.sal.common.impl.util.compat.DataNormalizationOperation;
  17 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  18 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
  19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  20 import org.slf4j.Logger;
  21 import org.slf4j.LoggerFactory;
  22
  23 @Deprecated(forRemoval = true)
  24 public class AbstractReadWriteTransaction extends AbstractWriteTransaction<DOMDataReadWriteTransaction> {
  25
  26     private static final Logger LOG = LoggerFactory.getLogger(AbstractReadWriteTransaction.class);
  27
  28     public AbstractReadWriteTransaction(final DOMDataReadWriteTransaction delegate,
  29             final BindingToNormalizedNodeCodec codec) {
  30         super(delegate, codec);
  31     }
  32
  33     @Override
  34     protected final void ensureParentsByMerge(final LogicalDatastoreType store,
  35             final org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier normalizedPath,
  36             final InstanceIdentifier<?> path) {
  37         List<PathArgument> currentArguments = new ArrayList<>();
  38         DataNormalizationOperation<?> currentOp = getCodec().getDataNormalizer().getRootOperation();
  39         Iterator<PathArgument> iterator = normalizedPath.getPathArguments().iterator();
  40         while (iterator.hasNext()) {
  41             PathArgument currentArg = iterator.next();
  42             try {
  43                 currentOp = currentOp.getChild(currentArg);
  44             } catch (DataNormalizationException e) {
  45                 throw new IllegalArgumentException(String.format("Invalid child encountered in path %s", path), e);
  46             }
  47             currentArguments.add(currentArg);
  48             org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier currentPath =
  49                     org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.create(currentArguments);
  50
  51             final Boolean exists;
  52             try {
  53                 exists = getDelegate().exists(store, currentPath).checkedGet();
  54             } catch (ReadFailedException e) {
  55                 LOG.error("Failed to read pre-existing data from store {} path {}", store, currentPath, e);
  56                 throw new IllegalStateException("Failed to read pre-existing data", e);
  57             }
  58
  59             if (!exists && iterator.hasNext()) {
  60                 getDelegate().merge(store, currentPath, currentOp.createDefault(currentArg));
  61             }
  62         }
  63     }
  64 }