yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/yang_version/YangVersionStatementSupport.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.yang_version;
   9
  10 import org.opendaylight.yangtools.yang.common.YangVersion;
  11 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  12 import org.opendaylight.yangtools.yang.model.api.stmt.YangVersionEffectiveStatement;
  13 import org.opendaylight.yangtools.yang.model.api.stmt.YangVersionStatement;
  14 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  15 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  16 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  17 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  18 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  19
  20 public final class YangVersionStatementSupport
  21         extends AbstractStatementSupport<YangVersion, YangVersionStatement, YangVersionEffectiveStatement> {
  22     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
  23         .YANG_VERSION)
  24         .build();
  25     private static final YangVersionStatementSupport INSTANCE = new YangVersionStatementSupport();
  26
  27     private YangVersionStatementSupport() {
  28         super(YangStmtMapping.YANG_VERSION);
  29     }
  30
  31     public static YangVersionStatementSupport getInstance() {
  32         return INSTANCE;
  33     }
  34
  35     @Override
  36     public YangVersion parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
  37         return SourceException.unwrap(YangVersion.parse(value), ctx.getStatementSourceReference(),
  38             "Unsupported YANG version %s", value);
  39     }
  40
  41     @Override
  42     public YangVersionStatement createDeclared(final StmtContext<YangVersion, YangVersionStatement, ?> ctx) {
  43         return new YangVersionStatementImpl(ctx);
  44     }
  45
  46     @Override
  47     public void onPreLinkageDeclared(
  48             final Mutable<YangVersion, YangVersionStatement, YangVersionEffectiveStatement> stmt) {
  49         stmt.setRootVersion(stmt.getStatementArgument());
  50     }
  51
  52     @Override
  53     public YangVersionEffectiveStatement createEffective(
  54             final StmtContext<YangVersion, YangVersionStatement, YangVersionEffectiveStatement> ctx) {
  55         return new YangVersionEffectiveStatementImpl(ctx);
  56     }
  57
  58     @Override
  59     protected SubstatementValidator getSubstatementValidator() {
  60         return SUBSTATEMENT_VALIDATOR;
  61     }
  62 }