yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/BaseStatementImpl.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 java.util.LinkedList;
  12 import java.util.List;
  13 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
  14 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
  15 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
  16 import org.opendaylight.yangtools.yang.parser.spi.IdentityNamespace;
  17 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
  18 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
  19 import org.opendaylight.yangtools.yang.parser.spi.meta.DerivedIdentitiesNamespace;
  20 import org.opendaylight.yangtools.yang.model.api.stmt.IdentityStatement;
  21 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  23 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  24 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.BaseEffectiveStatementImpl;
  25 import org.opendaylight.yangtools.yang.common.QName;
  26 import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
  27 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  28 import org.opendaylight.yangtools.yang.model.api.stmt.BaseStatement;
  29 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
  30 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  31 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  32
  33 public class BaseStatementImpl extends AbstractDeclaredStatement<QName>
  34         implements BaseStatement {
  35
  36     protected BaseStatementImpl(StmtContext<QName, BaseStatement, ?> context) {
  37         super(context);
  38     }
  39
  40     public static class Definition
  41             extends
  42             AbstractStatementSupport<QName, BaseStatement, EffectiveStatement<QName, BaseStatement>> {
  43
  44         public Definition() {
  45             super(Rfc6020Mapping.BASE);
  46         }
  47
  48         @Override
  49         public QName parseArgumentValue(StmtContext<?, ?, ?> ctx, String value) {
  50             return Utils.qNameFromArgument(ctx, value);
  51         }
  52
  53         @Override
  54         public BaseStatement createDeclared(
  55                 StmtContext<QName, BaseStatement, ?> ctx) {
  56             return new BaseStatementImpl(ctx);
  57         }
  58
  59         @Override
  60         public EffectiveStatement<QName, BaseStatement> createEffective(
  61                 StmtContext<QName, BaseStatement, EffectiveStatement<QName, BaseStatement>> ctx) {
  62             return new BaseEffectiveStatementImpl(ctx);
  63         }
  64
  65         @Override
  66         public void onStatementDefinitionDeclared(
  67                 final Mutable<QName, BaseStatement, EffectiveStatement<QName, BaseStatement>> baseStmtCtx)
  68                 throws SourceException {
  69             final Mutable<?, ?, ?> baseParentCtx = baseStmtCtx.getParentContext();
  70             if(StmtContextUtils.producesDeclared(baseParentCtx, IdentityStatement.class)) {
  71
  72                 final QName baseIdentityQName = baseStmtCtx.getStatementArgument();
  73                 ModelActionBuilder baseIdentityAction = baseStmtCtx.newInferenceAction(ModelProcessingPhase.STATEMENT_DEFINITION);
  74                 final Prerequisite<StmtContext<?, ?, ?>> requiresPrereq = baseIdentityAction.requiresCtx(baseStmtCtx, IdentityNamespace.class, baseIdentityQName, ModelProcessingPhase.STATEMENT_DEFINITION);
  75                 final Prerequisite<StmtContext.Mutable<?, ?, ?>> mutatesPrereq = baseIdentityAction.mutatesCtx
  76                         (baseParentCtx, ModelProcessingPhase.STATEMENT_DEFINITION);
  77
  78                 baseIdentityAction.apply( new InferenceAction() {
  79
  80                     @Override
  81                     public void apply() throws InferenceException {
  82                         List<StmtContext<?, ?, ?>> derivedIdentities = baseStmtCtx.getFromNamespace(DerivedIdentitiesNamespace.class, baseStmtCtx.getStatementArgument());
  83                         if(derivedIdentities == null) {
  84                             derivedIdentities = new LinkedList<>();
  85                             baseStmtCtx.addToNs(DerivedIdentitiesNamespace.class, baseIdentityQName, derivedIdentities);
  86                         }
  87                         derivedIdentities.add(baseParentCtx);
  88                     }
  89
  90                     @Override
  91                     public void prerequisiteFailed(
  92                             Collection<? extends Prerequisite<?>> failed)
  93                             throws InferenceException {
  94                             throw new InferenceException("Unable to resolve identity "+baseParentCtx.getStatementArgument()+" and base identity " + baseStmtCtx.getStatementArgument(), baseStmtCtx
  95                                     .getStatementSourceReference());
  96                     }
  97
  98                 });
  99             }
 100         }
 101     }
 102
 103     @Override
 104     public QName getName() {
 105         return argument();
 106     }
 107
 108 }