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 static org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase.EFFECTIVE_MODEL;
  11
  12 import java.util.Collection;
  13
  14 import javax.annotation.Nonnull;
  15
  16 import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
  17 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  18 import org.opendaylight.yangtools.yang.model.api.stmt.AugmentStatement;
  19 import org.opendaylight.yangtools.yang.model.api.stmt.DataDefinitionStatement;
  20 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
  21 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  23 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
  24 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
  25 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
  26 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  27 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  28 import org.opendaylight.yangtools.yang.parser.stmt.reactor.StatementContextBase;
  29 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.AugmentEffectiveStatementImpl;
  30
  31 public class AugmentStatementImpl extends AbstractDeclaredStatement<SchemaNodeIdentifier> implements AugmentStatement {
  32
  33     protected AugmentStatementImpl(StmtContext<SchemaNodeIdentifier, AugmentStatement, ?> context) {
  34         super(context);
  35     }
  36
  37     public static class Definition
  38             extends
  39             AbstractStatementSupport<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>> {
  40
  41         public Definition() {
  42             super(Rfc6020Mapping.AUGMENT);
  43         }
  44
  45         @Override
  46         public SchemaNodeIdentifier parseArgumentValue(StmtContext<?, ?, ?> ctx, String value) throws SourceException {
  47             return SchemaNodeIdentifier.create(AugmentUtils.parseAugmentPath(ctx, value), Utils.isXPathAbsolute(value));
  48         }
  49
  50         @Override
  51         public AugmentStatement createDeclared(StmtContext<SchemaNodeIdentifier, AugmentStatement, ?> ctx) {
  52             return new AugmentStatementImpl(ctx);
  53         }
  54
  55         @Override
  56         public EffectiveStatement<SchemaNodeIdentifier, AugmentStatement> createEffective(
  57                 StmtContext<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>> ctx) {
  58             return new AugmentEffectiveStatementImpl(ctx);
  59         }
  60
  61         @Override
  62         public void onFullDefinitionDeclared(
  63                 final StmtContext.Mutable<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>> augmentNode)
  64                 throws SourceException {
  65
  66             final ModelActionBuilder augmentAction = augmentNode.newInferenceAction(EFFECTIVE_MODEL);
  67             final ModelActionBuilder.Prerequisite<StmtContext<SchemaNodeIdentifier, AugmentStatement, EffectiveStatement<SchemaNodeIdentifier, AugmentStatement>>> sourceCtxPrereq = augmentAction
  68                     .requiresCtx(augmentNode, ModelProcessingPhase.FULL_DECLARATION);
  69
  70             augmentAction.apply(new ModelActionBuilder.InferenceAction() {
  71
  72                 @Override
  73                 public void apply() throws InferenceException {
  74
  75                     final StatementContextBase<?, ?, ?> augmentTargetCtx = AugmentUtils
  76                             .getAugmentTargetCtx(augmentNode);
  77                     StatementContextBase<?, ?, ?> augmentSourceCtx = (StatementContextBase<?, ?, ?>) sourceCtxPrereq
  78                             .get();
  79
  80                     try {
  81                         AugmentUtils.copyFromSourceToTarget(augmentSourceCtx, augmentTargetCtx);
  82                     } catch (SourceException e) {
  83                         e.printStackTrace();
  84                     }
  85                 }
  86
  87                 @Override
  88                 public void prerequisiteFailed(final Collection<? extends ModelActionBuilder.Prerequisite<?>> failed)
  89                         throws InferenceException {
  90                     if (failed.contains(augmentAction)) {
  91                         throw new InferenceException("Augment action failed", augmentNode.getStatementSourceReference());
  92                     }
  93                 }
  94             });
  95         }
  96     }
  97
  98     @Nonnull
  99     @Override
 100     public SchemaNodeIdentifier getTargetNode() {
 101         return argument();
 102     }
 103
 104     @Override
 105     public Collection<? extends DataDefinitionStatement> getDataDefinitions() {
 106         return allDeclared(DataDefinitionStatement.class);
 107     }
 108 }