yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/AugmentStatementImpl.java

   1 /**
   2  * Copyright (c) 2015 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.yangtools.yang.parser.stmt.rfc6020;
   9
  10 import java.util.Collection;
  11 import org.slf4j.Logger;
  12 import org.slf4j.LoggerFactory;
  13 import javax.annotation.Nonnull;
  14 import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
  15 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  16 import org.opendaylight.yangtools.yang.model.api.stmt.AugmentStatement;
  17 import org.opendaylight.yangtools.yang.model.api.stmt.DataDefinitionStatement;
  18 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
  19 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
  20 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  21 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
  23 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
  24 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  25 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  26 import org.opendaylight.yangtools.yang.parser.stmt.reactor.StatementContextBase;
  27 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.AugmentEffectiveStatementImpl;
  28
  29 public class AugmentStatementImpl extends
  30         AbstractDeclaredStatement<SchemaNodeIdentifier> implements
  31         AugmentStatement {
  32
  33     private static final Logger LOG = LoggerFactory
  34             .getLogger(AugmentStatementImpl.class);
  35
  36     protected AugmentStatementImpl(
  37             StmtContext<SchemaNodeIdentifier, AugmentStatement, ?> context) {
  38         super(context);
  39     }
  40
  41     public static class Definition
  42             extends
  43             AbstractStatementSupport<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>> {
  44
  45         public Definition() {
  46             super(Rfc6020Mapping.AUGMENT);
  47         }
  48
  49         @Override
  50         public SchemaNodeIdentifier parseArgumentValue(
  51                 StmtContext<?, ?, ?> ctx, String value) throws SourceException {
  52             return SchemaNodeIdentifier.create(
  53                     AugmentUtils.parseAugmentPath(ctx, value),
  54                     Utils.isXPathAbsolute(value));
  55         }
  56
  57         @Override
  58         public AugmentStatement createDeclared(
  59                 StmtContext<SchemaNodeIdentifier, AugmentStatement, ?> ctx) {
  60             return new AugmentStatementImpl(ctx);
  61         }
  62
  63         @Override
  64         public EffectiveStatement<SchemaNodeIdentifier, AugmentStatement> createEffective(
  65                 StmtContext<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>> ctx) {
  66             return new AugmentEffectiveStatementImpl(ctx);
  67         }
  68
  69         @Override
  70         public void onFullDefinitionDeclared(
  71                 final StmtContext.Mutable<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>> augmentNode)
  72                 throws SourceException {
  73
  74             final ModelActionBuilder augmentAction = augmentNode
  75                     .newInferenceAction(ModelProcessingPhase.FULL_DECLARATION);
  76             final ModelActionBuilder.Prerequisite<StmtContext<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>>> sourceCtxPrereq = augmentAction
  77                     .requiresCtx(augmentNode,
  78                             ModelProcessingPhase.FULL_DECLARATION);
  79
  80             augmentAction.apply(new ModelActionBuilder.InferenceAction() {
  81
  82                 @Override
  83                 public void apply() throws InferenceException {
  84
  85                     final StatementContextBase<?, ?, ?> augmentTargetCtx = AugmentUtils
  86                             .getAugmentTargetCtx(augmentNode);
  87
  88                     if (augmentTargetCtx == null) {
  89                         throw new InferenceException("Augment target not found: "+augmentNode.getStatementArgument(), augmentNode.getStatementSourceReference());
  90                     }
  91
  92                     final StatementContextBase<?, ?, ?> augmentSourceCtx = (StatementContextBase<?, ?, ?>) sourceCtxPrereq
  93                             .get();
  94
  95                     try {
  96                         AugmentUtils.copyFromSourceToTarget(augmentSourceCtx,
  97                                 augmentTargetCtx);
  98                     } catch (SourceException e) {
  99                         LOG.warn(e.getMessage(), e);
 100                     }
 101
 102                 }
 103
 104                 @Override
 105                 public void prerequisiteFailed(
 106                         final Collection<? extends ModelActionBuilder.Prerequisite<?>> failed)
 107                         throws InferenceException {
 108                         throw new InferenceException("Augment target not found: "+augmentNode.getStatementArgument(),
 109                                 augmentNode.getStatementSourceReference());
 110                 }
 111             });
 112         }
 113     }
 114
 115     @Nonnull
 116     @Override
 117     public SchemaNodeIdentifier getTargetNode() {
 118         return argument();
 119     }
 120
 121     @Override
 122     public Collection<? extends DataDefinitionStatement> getDataDefinitions() {
 123         return allDeclared(DataDefinitionStatement.class);
 124     }
 125 }