yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/refine/RefineStatementSupport.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.refine;
   9
  10 import static com.google.common.base.Verify.verifyNotNull;
  11 import static java.util.Objects.requireNonNull;
  12
  13 import com.google.common.annotations.Beta;
  14 import com.google.common.collect.ImmutableList;
  15 import org.eclipse.jdt.annotation.NonNull;
  16 import org.opendaylight.yangtools.yang.common.Empty;
  17 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
  18 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  19 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
  20 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  21 import org.opendaylight.yangtools.yang.model.api.stmt.RefineEffectiveStatement;
  22 import org.opendaylight.yangtools.yang.model.api.stmt.RefineStatement;
  23 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Descendant;
  24 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.ArgumentUtils;
  25 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  26 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
  27 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  28 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  29
  30 @Beta
  31 public final class RefineStatementSupport
  32         extends AbstractStatementSupport<Descendant, RefineStatement, RefineEffectiveStatement> {
  33     private static final @NonNull RefineStatementSupport RFC6020_INSTANCE = new RefineStatementSupport(
  34         SubstatementValidator.builder(YangStmtMapping.REFINE)
  35             .addOptional(YangStmtMapping.DEFAULT)
  36             .addOptional(YangStmtMapping.DESCRIPTION)
  37             .addOptional(YangStmtMapping.REFERENCE)
  38             .addOptional(YangStmtMapping.CONFIG)
  39             .addOptional(YangStmtMapping.MANDATORY)
  40             .addOptional(YangStmtMapping.PRESENCE)
  41             .addAny(YangStmtMapping.MUST)
  42             .addOptional(YangStmtMapping.MIN_ELEMENTS)
  43             .addOptional(YangStmtMapping.MAX_ELEMENTS)
  44             .build());
  45     private static final @NonNull RefineStatementSupport RFC7950_INSTANCE = new RefineStatementSupport(
  46         SubstatementValidator.builder(YangStmtMapping.REFINE)
  47             .addOptional(YangStmtMapping.DEFAULT)
  48             .addOptional(YangStmtMapping.DESCRIPTION)
  49             .addOptional(YangStmtMapping.REFERENCE)
  50             .addOptional(YangStmtMapping.CONFIG)
  51             .addAny(YangStmtMapping.IF_FEATURE)
  52             .addOptional(YangStmtMapping.MANDATORY)
  53             .addOptional(YangStmtMapping.PRESENCE)
  54             .addAny(YangStmtMapping.MUST)
  55             .addOptional(YangStmtMapping.MIN_ELEMENTS)
  56             .addOptional(YangStmtMapping.MAX_ELEMENTS)
  57             .build());
  58
  59     private final SubstatementValidator validator;
  60
  61     private RefineStatementSupport(final SubstatementValidator validator) {
  62         super(YangStmtMapping.REFINE, StatementPolicy.reject());
  63         this.validator = requireNonNull(validator);
  64     }
  65
  66     public static @NonNull RefineStatementSupport rfc6020Instance() {
  67         return RFC6020_INSTANCE;
  68     }
  69
  70     public static @NonNull RefineStatementSupport rfc7950Instance() {
  71         return RFC7950_INSTANCE;
  72     }
  73
  74     @Override
  75     public Descendant parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
  76         return ArgumentUtils.parseDescendantSchemaNodeIdentifier(ctx, value);
  77     }
  78
  79     @Override
  80     protected SubstatementValidator getSubstatementValidator() {
  81         return validator;
  82     }
  83
  84     @Override
  85     protected RefineStatement createDeclared(final StmtContext<Descendant, RefineStatement, ?> ctx,
  86             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
  87         return new RefineStatementImpl(ctx.getRawArgument(), ctx.getArgument(), substatements);
  88     }
  89
  90     @Override
  91     protected RefineStatement createEmptyDeclared(final StmtContext<Descendant, RefineStatement, ?> ctx) {
  92         // Empty refine is exceedingly unlikely: let's be lazy and reuse the implementation
  93         return createDeclared(ctx, ImmutableList.of());
  94     }
  95
  96     @Override
  97     protected RefineEffectiveStatement createEffective(final Current<Descendant, RefineStatement> stmt,
  98             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
  99         // Empty refine is exceedingly unlikely: let's be lazy and reuse the implementation
 100         return new RefineEffectiveStatementImpl(stmt.declared(), substatements, stmt.optionalPath(),
 101             (SchemaNode) verifyNotNull(stmt.namespaceItem(RefineTargetNamespace.class, Empty.getInstance()))
 102                 .buildEffective());
 103     }
 104 }