yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/enum_/EnumStatementSupport.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.enum_;
   9
  10 import static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.annotations.Beta;
  13 import com.google.common.collect.ImmutableList;
  14 import org.eclipse.jdt.annotation.NonNull;
  15 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  16 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
  17 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  18 import org.opendaylight.yangtools.yang.model.api.stmt.EnumEffectiveStatement;
  19 import org.opendaylight.yangtools.yang.model.api.stmt.EnumStatement;
  20 import org.opendaylight.yangtools.yang.model.spi.stmt.DeclaredStatements;
  21 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
  23 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  24 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  25
  26 @Beta
  27 public final class EnumStatementSupport
  28         extends AbstractStatementSupport<String, EnumStatement, EnumEffectiveStatement> {
  29     private static final @NonNull EnumStatementSupport RFC6020_INSTANCE = new EnumStatementSupport(
  30         SubstatementValidator.builder(YangStmtMapping.ENUM)
  31             .addOptional(YangStmtMapping.DESCRIPTION)
  32             .addOptional(YangStmtMapping.REFERENCE)
  33             .addOptional(YangStmtMapping.STATUS)
  34             .addOptional(YangStmtMapping.VALUE)
  35             .build());
  36     private static final @NonNull EnumStatementSupport RFC7950_INSTANCE = new EnumStatementSupport(
  37         SubstatementValidator.builder(YangStmtMapping.ENUM)
  38             .addOptional(YangStmtMapping.DESCRIPTION)
  39             .addAny(YangStmtMapping.IF_FEATURE)
  40             .addOptional(YangStmtMapping.REFERENCE)
  41             .addOptional(YangStmtMapping.STATUS)
  42             .addOptional(YangStmtMapping.VALUE)
  43             .build());
  44
  45     private final SubstatementValidator validator;
  46
  47     private EnumStatementSupport(final SubstatementValidator validator) {
  48         super(YangStmtMapping.ENUM, StatementPolicy.contextIndependent());
  49         this.validator = requireNonNull(validator);
  50     }
  51
  52     public static @NonNull EnumStatementSupport rfc6020Instance() {
  53         return RFC6020_INSTANCE;
  54     }
  55
  56     public static @NonNull EnumStatementSupport rfc7950Instance() {
  57         return RFC7950_INSTANCE;
  58     }
  59
  60     @Override
  61     public String parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
  62         // FIXME: Checks for real value
  63         return value;
  64     }
  65
  66     @Override
  67     protected SubstatementValidator getSubstatementValidator() {
  68         return validator;
  69     }
  70
  71     @Override
  72     protected EnumStatement createDeclared(final StmtContext<String, EnumStatement, ?> ctx,
  73             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
  74         return DeclaredStatements.createEnum(ctx.getRawArgument(), ctx.getArgument(), substatements);
  75     }
  76
  77     @Override
  78     protected EnumStatement createEmptyDeclared(final StmtContext<String, EnumStatement, ?> ctx) {
  79         return DeclaredStatements.createEnum(ctx.getRawArgument(), ctx.getArgument());
  80     }
  81
  82     @Override
  83     protected EnumEffectiveStatement createEffective(final Current<String, EnumStatement> stmt,
  84             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
  85         return substatements.isEmpty() ? new EmptyEnumEffectiveStatement(stmt.declared())
  86             : new RegularEnumEffectiveStatement(stmt.declared(), substatements);
  87     }
  88 }