yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/deviation/DeviationStatementSupport.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies, s.r.o. 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.rfc7950.stmt.deviation;
   9
  10 import com.google.common.collect.ImmutableList;
  11 import org.opendaylight.yangtools.yang.common.QNameModule;
  12 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  13 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
  14 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  15 import org.opendaylight.yangtools.yang.model.api.stmt.DeviationEffectiveStatement;
  16 import org.opendaylight.yangtools.yang.model.api.stmt.DeviationStatement;
  17 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
  18 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.ArgumentUtils;
  19 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseStatementSupport;
  20 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
  21 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  23 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  24 import org.opendaylight.yangtools.yang.parser.spi.source.ModuleCtxToModuleQName;
  25
  26 public final class DeviationStatementSupport
  27         extends BaseStatementSupport<SchemaNodeIdentifier, DeviationStatement, DeviationEffectiveStatement> {
  28     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
  29         .DEVIATION)
  30         .addOptional(YangStmtMapping.DESCRIPTION)
  31         .addAny(YangStmtMapping.DEVIATE)
  32         .addOptional(YangStmtMapping.REFERENCE)
  33         .build();
  34     private static final DeviationStatementSupport INSTANCE = new DeviationStatementSupport();
  35
  36     private DeviationStatementSupport() {
  37         super(YangStmtMapping.DEVIATION);
  38     }
  39
  40     public static DeviationStatementSupport getInstance() {
  41         return INSTANCE;
  42     }
  43
  44     @Override
  45     public SchemaNodeIdentifier parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
  46         return ArgumentUtils.nodeIdentifierFromPath(ctx, value);
  47     }
  48
  49     @Override
  50     public void onFullDefinitionDeclared(
  51             final Mutable<SchemaNodeIdentifier, DeviationStatement, DeviationEffectiveStatement> ctx) {
  52         final QNameModule currentModule = ctx.getFromNamespace(ModuleCtxToModuleQName.class,
  53                 ctx.getRoot());
  54         final QNameModule targetModule = ctx.coerceStatementArgument().getLastComponent().getModule();
  55
  56         if (currentModule.equals(targetModule)) {
  57             throw new InferenceException(ctx.getStatementSourceReference(),
  58                     "Deviation must not target the same module as the one it is defined in: %s", currentModule);
  59         }
  60     }
  61
  62     @Override
  63     protected SubstatementValidator getSubstatementValidator() {
  64         return SUBSTATEMENT_VALIDATOR;
  65     }
  66
  67     @Override
  68     protected DeviationStatement createDeclared(final StmtContext<SchemaNodeIdentifier, DeviationStatement, ?> ctx,
  69             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
  70         return new DeviationStatementImpl(ctx, substatements);
  71     }
  72
  73     @Override
  74     protected DeviationStatement createEmptyDeclared(
  75             final StmtContext<SchemaNodeIdentifier, DeviationStatement, ?> ctx) {
  76         return new DeviationStatementImpl(ctx, ImmutableList.of());
  77     }
  78
  79     @Override
  80     protected DeviationEffectiveStatement createEffective(
  81             final StmtContext<SchemaNodeIdentifier, DeviationStatement, DeviationEffectiveStatement> ctx,
  82             final DeviationStatement declared, final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
  83         return new DeviationEffectiveStatementImpl(declared, substatements);
  84     }
  85
  86     @Override
  87     protected DeviationEffectiveStatement createEmptyEffective(
  88             final StmtContext<SchemaNodeIdentifier, DeviationStatement, DeviationEffectiveStatement> ctx,
  89             final DeviationStatement declared) {
  90         return new DeviationEffectiveStatementImpl(declared, ImmutableList.of());
  91     }
  92 }