yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/presence/PresenceStatementSupport.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.presence;
   9
  10 import com.google.common.collect.ImmutableList;
  11 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  12 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
  13 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  14 import org.opendaylight.yangtools.yang.model.api.stmt.PresenceEffectiveStatement;
  15 import org.opendaylight.yangtools.yang.model.api.stmt.PresenceStatement;
  16 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseStringStatementSupport;
  17 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  18 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  19
  20 public final class PresenceStatementSupport
  21         extends BaseStringStatementSupport<PresenceStatement, PresenceEffectiveStatement> {
  22     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR =
  23             SubstatementValidator.builder(YangStmtMapping.PRESENCE).build();
  24     private static final PresenceStatementSupport INSTANCE = new PresenceStatementSupport();
  25
  26     private PresenceStatementSupport() {
  27         super(YangStmtMapping.PRESENCE);
  28     }
  29
  30     public static PresenceStatementSupport getInstance() {
  31         return INSTANCE;
  32     }
  33
  34     @Override
  35     protected SubstatementValidator getSubstatementValidator() {
  36         return SUBSTATEMENT_VALIDATOR;
  37     }
  38
  39     @Override
  40     protected PresenceStatement createDeclared(final StmtContext<String, PresenceStatement, ?> ctx,
  41             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
  42         return new RegularPresenceStatement(ctx, substatements);
  43     }
  44
  45     @Override
  46     protected PresenceStatement createEmptyDeclared(final StmtContext<String, PresenceStatement, ?> ctx) {
  47         return new EmptyPresenceStatement(ctx.coerceRawStatementArgument());
  48     }
  49
  50     @Override
  51     protected PresenceEffectiveStatement createEffective(
  52             final StmtContext<String, PresenceStatement, PresenceEffectiveStatement> ctx,
  53             final PresenceStatement declared,
  54             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
  55         return new RegularPresenceEffectiveStatement(declared, substatements);
  56     }
  57
  58     @Override
  59     protected PresenceEffectiveStatement createEmptyEffective(
  60             final StmtContext<String, PresenceStatement, PresenceEffectiveStatement> ctx,
  61             final PresenceStatement declared) {
  62         return new EmptyPresenceEffectiveStatement(declared);
  63     }
  64 }