opendaylight/md-sal/sal-common-impl/src/main/java/org/opendaylight/controller/md/sal/common/impl/util/compat/DataNormalizer.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.common.impl.util.compat;
   9
  10 import static com.google.common.base.Preconditions.checkArgument;
  11
  12 import com.google.common.collect.ImmutableList;
  13 import java.util.Iterator;
  14 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  15 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
  16 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  17
  18 /**
  19  * Deprecated.
  20  *
  21  * @deprecated This class provides compatibility between XML semantics
  22  *     and {@link org.opendaylight.yangtools.yang.data.util.DataSchemaContextTree}
  23  */
  24 @Deprecated(forRemoval = true)
  25 public class DataNormalizer {
  26
  27     private final DataNormalizationOperation<?> operation;
  28
  29     public DataNormalizer(final SchemaContext ctx) {
  30         operation = DataNormalizationOperation.from(ctx);
  31     }
  32
  33     public YangInstanceIdentifier toNormalized(final YangInstanceIdentifier legacy) {
  34         ImmutableList.Builder<PathArgument> normalizedArgs = ImmutableList.builder();
  35
  36         DataNormalizationOperation<?> currentOp = operation;
  37         Iterator<PathArgument> arguments = legacy.getPathArguments().iterator();
  38
  39         try {
  40             while (arguments.hasNext()) {
  41                 PathArgument legacyArg = arguments.next();
  42                 currentOp = currentOp.getChild(legacyArg);
  43                 checkArgument(currentOp != null,
  44                         "Legacy Instance Identifier %s is not correct. Normalized Instance Identifier so far %s",
  45                         legacy, normalizedArgs.build());
  46                 while (currentOp.isMixin()) {
  47                     normalizedArgs.add(currentOp.getIdentifier());
  48                     currentOp = currentOp.getChild(legacyArg.getNodeType());
  49                 }
  50                 normalizedArgs.add(legacyArg);
  51             }
  52         } catch (DataNormalizationException e) {
  53             throw new IllegalArgumentException(String.format("Failed to normalize path %s", legacy), e);
  54         }
  55
  56         return YangInstanceIdentifier.create(normalizedArgs.build());
  57     }
  58
  59     public DataNormalizationOperation<?> getOperation(final YangInstanceIdentifier legacy)
  60             throws DataNormalizationException {
  61         DataNormalizationOperation<?> currentOp = operation;
  62
  63         for (PathArgument pathArgument : legacy.getPathArguments()) {
  64             currentOp = currentOp.getChild(pathArgument);
  65         }
  66         return currentOp;
  67     }
  68
  69     public YangInstanceIdentifier toLegacy(final YangInstanceIdentifier normalized) throws DataNormalizationException {
  70         ImmutableList.Builder<PathArgument> legacyArgs = ImmutableList.builder();
  71         DataNormalizationOperation<?> currentOp = operation;
  72         for (PathArgument normalizedArg : normalized.getPathArguments()) {
  73             currentOp = currentOp.getChild(normalizedArg);
  74             if (!currentOp.isMixin()) {
  75                 legacyArgs.add(normalizedArg);
  76             }
  77         }
  78         return YangInstanceIdentifier.create(legacyArgs.build());
  79     }
  80
  81     public DataNormalizationOperation<?> getRootOperation() {
  82         return operation;
  83     }
  84 }