yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/notification/NotificationStatementRFC7950Support.java

   1 /*
   2  * Copyright (c) 2016 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.rfc7950.stmt.notification;
   9
  10 import com.google.common.annotations.Beta;
  11 import com.google.common.collect.ImmutableSet;
  12 import org.opendaylight.yangtools.yang.common.QName;
  13 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  14 import org.opendaylight.yangtools.yang.model.api.meta.StatementDefinition;
  15 import org.opendaylight.yangtools.yang.model.api.stmt.NotificationStatement;
  16 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
  17 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
  18 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  19 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  20
  21 /**
  22  * Class providing necessary support for processing YANG 1.1 Notification
  23  * statement.
  24  */
  25 @Beta
  26 public final class NotificationStatementRFC7950Support extends AbstractNotificationStatementSupport {
  27     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
  28             .NOTIFICATION)
  29             .addAny(YangStmtMapping.ANYDATA)
  30             .addAny(YangStmtMapping.ANYXML)
  31             .addAny(YangStmtMapping.CHOICE)
  32             .addAny(YangStmtMapping.CONTAINER)
  33             .addOptional(YangStmtMapping.DESCRIPTION)
  34             .addAny(YangStmtMapping.GROUPING)
  35             .addAny(YangStmtMapping.IF_FEATURE)
  36             .addAny(YangStmtMapping.LEAF)
  37             .addAny(YangStmtMapping.LEAF_LIST)
  38             .addAny(YangStmtMapping.LIST)
  39             .addAny(YangStmtMapping.MUST)
  40             .addOptional(YangStmtMapping.REFERENCE)
  41             .addOptional(YangStmtMapping.STATUS)
  42             .addAny(YangStmtMapping.TYPEDEF)
  43             .addAny(YangStmtMapping.USES)
  44             .build();
  45
  46     private static final ImmutableSet<StatementDefinition> ILLEGAL_PARENTS = ImmutableSet.of(
  47             YangStmtMapping.NOTIFICATION, YangStmtMapping.RPC, YangStmtMapping.ACTION);
  48     private static final NotificationStatementRFC7950Support INSTANCE = new NotificationStatementRFC7950Support();
  49
  50     private NotificationStatementRFC7950Support() {
  51         // Hidden
  52     }
  53
  54     public static NotificationStatementRFC7950Support getInstance() {
  55         return INSTANCE;
  56     }
  57
  58     @Override
  59     protected SubstatementValidator getSubstatementValidator() {
  60         return SUBSTATEMENT_VALIDATOR;
  61     }
  62
  63
  64     @Override
  65     void checkEffective(final Current<QName, NotificationStatement> stmt) {
  66         final QName argument = stmt.argument();
  67         SourceException.throwIf(StmtContextUtils.hasAncestorOfType(stmt, ILLEGAL_PARENTS), stmt,
  68             "Notification %s is defined within an rpc, action, or another notification", argument);
  69         SourceException.throwIf(
  70             !StmtContextUtils.hasAncestorOfTypeWithChildOfType(stmt, YangStmtMapping.LIST, YangStmtMapping.KEY), stmt,
  71             "Notification %s is defined within a list that has no key statement", argument);
  72         SourceException.throwIf(StmtContextUtils.hasParentOfType(stmt, YangStmtMapping.CASE), stmt,
  73             "Notification %s is defined within a case statement", argument);
  74     }
  75 }