yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/deviate/DeviateStatementRFC7950Support.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.deviate;
   9
  10 import com.google.common.annotations.Beta;
  11 import org.opendaylight.yangtools.yang.model.api.DeviateKind;
  12 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  13 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  14
  15 /**
  16  * Class providing necessary support for processing YANG 1.1 deviate statement.
  17  */
  18 @Beta
  19 public final class DeviateStatementRFC7950Support extends AbstractDeviateStatementSupport {
  20
  21     private static final SubstatementValidator DEVIATE_ADD_SUBSTATEMENT_VALIDATOR =
  22             SubstatementValidator.builder(YangStmtMapping.DEVIATE)
  23                 .addOptional(YangStmtMapping.CONFIG)
  24                 .addAny(YangStmtMapping.DEFAULT)
  25                 .addOptional(YangStmtMapping.MANDATORY)
  26                 .addOptional(YangStmtMapping.MAX_ELEMENTS)
  27                 .addOptional(YangStmtMapping.MIN_ELEMENTS)
  28                 .addAny(YangStmtMapping.MUST)
  29                 .addAny(YangStmtMapping.UNIQUE)
  30                 .addOptional(YangStmtMapping.UNITS)
  31                 .build();
  32
  33     private static final SubstatementValidator DEVIATE_DELETE_SUBSTATEMENT_VALIDATOR =
  34             SubstatementValidator.builder(YangStmtMapping.DEVIATE)
  35                 .addAny(YangStmtMapping.DEFAULT)
  36                 .addAny(YangStmtMapping.MUST)
  37                 .addAny(YangStmtMapping.UNIQUE)
  38                 .addOptional(YangStmtMapping.UNITS)
  39                 .build();
  40     private static final DeviateStatementRFC7950Support INSTANCE = new DeviateStatementRFC7950Support();
  41
  42     private DeviateStatementRFC7950Support() {
  43         // Hidden
  44     }
  45
  46     public static DeviateStatementRFC7950Support getInstance() {
  47         return INSTANCE;
  48     }
  49
  50     @Override
  51     protected SubstatementValidator getSubstatementValidatorForDeviate(final DeviateKind deviateKind) {
  52         switch (deviateKind) {
  53             case NOT_SUPPORTED:
  54                 return super.getSubstatementValidatorForDeviate(deviateKind);
  55             case ADD:
  56                 return DEVIATE_ADD_SUBSTATEMENT_VALIDATOR;
  57             case REPLACE:
  58                 return super.getSubstatementValidatorForDeviate(deviateKind);
  59             case DELETE:
  60                 return DEVIATE_DELETE_SUBSTATEMENT_VALIDATOR;
  61             default:
  62                 throw new IllegalStateException(String.format(
  63                         "Substatement validator for deviate %s has not been defined.", deviateKind));
  64         }
  65     }
  66 }