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 com.google.common.collect.Iterables;
  12 import org.opendaylight.yangtools.yang.common.QNameModule;
  13 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  14 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
  15 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  16 import org.opendaylight.yangtools.yang.model.api.stmt.DeviationEffectiveStatement;
  17 import org.opendaylight.yangtools.yang.model.api.stmt.DeviationStatement;
  18 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
  19 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.ArgumentUtils;
  20 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseStatementSupport;
  21 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  23 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  24 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  25 import org.opendaylight.yangtools.yang.parser.spi.source.ModuleCtxToModuleQName;
  26
  27 public final class DeviationStatementSupport
  28         extends BaseStatementSupport<SchemaNodeIdentifier, DeviationStatement, DeviationEffectiveStatement> {
  29     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
  30         .DEVIATION)
  31         .addOptional(YangStmtMapping.DESCRIPTION)
  32         .addAny(YangStmtMapping.DEVIATE)
  33         .addOptional(YangStmtMapping.REFERENCE)
  34         .build();
  35     private static final DeviationStatementSupport INSTANCE = new DeviationStatementSupport();
  36
  37     private DeviationStatementSupport() {
  38         super(YangStmtMapping.DEVIATION);
  39     }
  40
  41     public static DeviationStatementSupport getInstance() {
  42         return INSTANCE;
  43     }
  44
  45     @Override
  46     public SchemaNodeIdentifier parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
  47         return ArgumentUtils.nodeIdentifierFromPath(ctx, value);
  48     }
  49
  50     @Override
  51     public void onFullDefinitionDeclared(
  52             final Mutable<SchemaNodeIdentifier, DeviationStatement, DeviationEffectiveStatement> ctx) {
  53         final QNameModule currentModule = ctx.getFromNamespace(ModuleCtxToModuleQName.class,
  54                 ctx.getRoot());
  55         final QNameModule targetModule = Iterables.getLast(ctx.coerceStatementArgument().getNodeIdentifiers())
  56                 .getModule();
  57
  58         if (currentModule.equals(targetModule)) {
  59             throw new InferenceException(ctx.getStatementSourceReference(),
  60                     "Deviation must not target the same module as the one it is defined in: %s", currentModule);
  61         }
  62     }
  63
  64     @Override
  65     protected SubstatementValidator getSubstatementValidator() {
  66         return SUBSTATEMENT_VALIDATOR;
  67     }
  68
  69     @Override
  70     protected DeviationStatement createDeclared(final StmtContext<SchemaNodeIdentifier, DeviationStatement, ?> ctx,
  71             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
  72         return new DeviationStatementImpl(ctx, substatements);
  73     }
  74
  75     @Override
  76     protected DeviationStatement createEmptyDeclared(
  77             final StmtContext<SchemaNodeIdentifier, DeviationStatement, ?> ctx) {
  78         return new DeviationStatementImpl(ctx, ImmutableList.of());
  79     }
  80
  81     @Override
  82     protected DeviationEffectiveStatement createEffective(
  83             final StmtContext<SchemaNodeIdentifier, DeviationStatement, DeviationEffectiveStatement> ctx,
  84             final DeviationStatement declared, final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
  85         return new DeviationEffectiveStatementImpl(declared, substatements);
  86     }
  87
  88     @Override
  89     protected DeviationEffectiveStatement createEmptyEffective(
  90             final StmtContext<SchemaNodeIdentifier, DeviationStatement, DeviationEffectiveStatement> ctx,
  91             final DeviationStatement declared) {
  92         return new DeviationEffectiveStatementImpl(declared, ImmutableList.of());
  93     }
  94 }