yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/ExtensionStatementImpl.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 org.opendaylight.yangtools.yang.common.QName;
  11 import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
  12 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  13 import org.opendaylight.yangtools.yang.model.api.stmt.ArgumentStatement;
  14 import org.opendaylight.yangtools.yang.model.api.stmt.DescriptionStatement;
  15 import org.opendaylight.yangtools.yang.model.api.stmt.ExtensionStatement;
  16 import org.opendaylight.yangtools.yang.model.api.stmt.ReferenceStatement;
  17 import org.opendaylight.yangtools.yang.model.api.stmt.StatusStatement;
  18 import org.opendaylight.yangtools.yang.parser.spi.ExtensionNamespace;
  19 import org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator;
  20 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
  21 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  22 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  23 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.ExtensionEffectiveStatementImpl;
  24
  25 public class ExtensionStatementImpl extends AbstractDeclaredStatement<QName> implements ExtensionStatement {
  26     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(Rfc6020Mapping
  27             .EXTENSION)
  28             .addOptional(Rfc6020Mapping.ARGUMENT)
  29             .addOptional(Rfc6020Mapping.DESCRIPTION)
  30             .addOptional(Rfc6020Mapping.REFERENCE)
  31             .addOptional(Rfc6020Mapping.STATUS)
  32             .build();
  33
  34     protected ExtensionStatementImpl(final StmtContext<QName, ExtensionStatement,?> context) {
  35         super(context);
  36     }
  37
  38     public static class Definition extends AbstractStatementSupport<QName,ExtensionStatement,EffectiveStatement<QName,ExtensionStatement>> {
  39         public Definition() {
  40             super(Rfc6020Mapping.EXTENSION);
  41         }
  42
  43         @Override
  44         public QName parseArgumentValue(final StmtContext<?,?,?> ctx, final String value) {
  45             return Utils.qNameFromArgument(ctx, value);
  46         }
  47
  48         @Override
  49         public ExtensionStatement createDeclared(final StmtContext<QName, ExtensionStatement,?> ctx) {
  50             return new ExtensionStatementImpl(ctx);
  51         }
  52
  53         @Override
  54         public EffectiveStatement<QName,ExtensionStatement> createEffective(
  55                 final StmtContext<QName,ExtensionStatement ,EffectiveStatement<QName,ExtensionStatement>> ctx) {
  56
  57             // Look at the thread-local leak in case we are invoked recursively
  58             final ExtensionEffectiveStatementImpl existing = RecursiveObjectLeaker.lookup(ctx,
  59                 ExtensionEffectiveStatementImpl.class);
  60             if (existing != null) {
  61                 // Careful! this not fully initialized!
  62                 return existing;
  63             }
  64
  65             RecursiveObjectLeaker.beforeConstructor(ctx);
  66             try {
  67                 // This result is fine, we know it has been completely initialized
  68                 return new ExtensionEffectiveStatementImpl(ctx);
  69             } finally {
  70                 RecursiveObjectLeaker.afterConstructor(ctx);
  71             }
  72         }
  73
  74         @Override
  75         public void onStatementDefinitionDeclared(final StmtContext.Mutable<QName, ExtensionStatement, EffectiveStatement<QName, ExtensionStatement>> stmt) {
  76             stmt.addContext(ExtensionNamespace.class, stmt.getStatementArgument(), stmt);
  77         }
  78
  79         @Override
  80         public void onFullDefinitionDeclared(final StmtContext.Mutable<QName, ExtensionStatement,
  81                 EffectiveStatement<QName, ExtensionStatement>> stmt) {
  82             super.onFullDefinitionDeclared(stmt);
  83             SUBSTATEMENT_VALIDATOR.validate(stmt);
  84         }
  85     }
  86
  87     @Override
  88     public StatusStatement getStatus() {
  89         return firstDeclared(StatusStatement.class);
  90     }
  91
  92     @Override
  93     public DescriptionStatement getDescription() {
  94         return firstDeclared(DescriptionStatement.class);
  95     }
  96
  97     @Override
  98     public ReferenceStatement getReference() {
  99         return firstDeclared(ReferenceStatement.class);
 100     }
 101
 102     @Override
 103     public ArgumentStatement getArgument() {
 104         return firstDeclared(ArgumentStatement.class);
 105     }
 106
 107 }