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