yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/type/TypeStatementRFC7950Support.java

   1 /*
   2  * Copyright (c) 2017 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.type;
   9
  10 import com.google.common.annotations.Beta;
  11 import com.google.common.collect.ImmutableMap;
  12 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
  13
  14 /**
  15  * Class providing necessary support for processing YANG 1.1 Type statement.
  16  */
  17 @Beta
  18 public final class TypeStatementRFC7950Support extends AbstractTypeStatementSupport {
  19     private static final ImmutableMap<String, StatementSupport<?, ?, ?>> ARGUMENT_SPECIFIC_SUPPORTS = ImmutableMap.of(
  20         LEAF_REF, new LeafrefSpecificationRFC7950Support(),
  21         IDENTITY_REF, new IdentityrefSpecificationRFC7950Support());
  22     private static final TypeStatementRFC7950Support INSTANCE = new TypeStatementRFC7950Support();
  23
  24     private TypeStatementRFC7950Support() {
  25         // Hidden
  26     }
  27
  28     public static TypeStatementRFC7950Support getInstance() {
  29         return INSTANCE;
  30     }
  31
  32     @Override
  33     public boolean hasArgumentSpecificSupports() {
  34         return !ARGUMENT_SPECIFIC_SUPPORTS.isEmpty() || super.hasArgumentSpecificSupports();
  35     }
  36
  37     @Override
  38     public StatementSupport<?, ?, ?> getSupportSpecificForArgument(final String argument) {
  39         final StatementSupport<?, ?, ?> potential = ARGUMENT_SPECIFIC_SUPPORTS.get(argument);
  40         return potential != null ? potential : super.getSupportSpecificForArgument(argument);
  41     }
  42 }