yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/TypeStatementImpl.java

   1 /*
   2  * Copyright (c) 2015 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.stmt.rfc6020;
   9
  10 import static org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator.MAX;
  11
  12 import com.google.common.base.Verify;
  13 import java.util.Collection;
  14 import javax.annotation.Nonnull;
  15 import org.opendaylight.yangtools.yang.common.QName;
  16 import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
  17 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
  18 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  19 import org.opendaylight.yangtools.yang.model.api.stmt.TypeEffectiveStatement;
  20 import org.opendaylight.yangtools.yang.model.api.stmt.TypeStatement;
  21 import org.opendaylight.yangtools.yang.model.api.stmt.TypedefEffectiveStatement;
  22 import org.opendaylight.yangtools.yang.model.api.stmt.TypedefStatement;
  23 import org.opendaylight.yangtools.yang.model.api.type.BinaryTypeDefinition;
  24 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
  25 import org.opendaylight.yangtools.yang.model.api.type.BooleanTypeDefinition;
  26 import org.opendaylight.yangtools.yang.model.api.type.DecimalTypeDefinition;
  27 import org.opendaylight.yangtools.yang.model.api.type.EmptyTypeDefinition;
  28 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition;
  29 import org.opendaylight.yangtools.yang.model.api.type.IdentityrefTypeDefinition;
  30 import org.opendaylight.yangtools.yang.model.api.type.InstanceIdentifierTypeDefinition;
  31 import org.opendaylight.yangtools.yang.model.api.type.IntegerTypeDefinition;
  32 import org.opendaylight.yangtools.yang.model.api.type.LeafrefTypeDefinition;
  33 import org.opendaylight.yangtools.yang.model.api.type.StringTypeDefinition;
  34 import org.opendaylight.yangtools.yang.model.api.type.UnionTypeDefinition;
  35 import org.opendaylight.yangtools.yang.model.api.type.UnsignedIntegerTypeDefinition;
  36 import org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator;
  37 import org.opendaylight.yangtools.yang.parser.spi.TypeNamespace;
  38 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
  39 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  40 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
  41 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
  42 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
  43 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
  44 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
  45 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  46 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  47 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  48 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.TypeDefEffectiveStatementImpl;
  49 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.BinaryTypeEffectiveStatementImpl;
  50 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.BitsTypeEffectiveStatementImpl;
  51 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.BooleanTypeEffectiveStatementImpl;
  52 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.BuiltinEffectiveStatements;
  53 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.DecimalTypeEffectiveStatementImpl;
  54 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.EmptyTypeEffectiveStatementImpl;
  55 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.EnumTypeEffectiveStatementImpl;
  56 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.IdentityrefTypeEffectiveStatementImpl;
  57 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.InstanceIdentifierTypeEffectiveStatementImpl;
  58 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.IntegerTypeEffectiveStatementImpl;
  59 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.LeafrefTypeEffectiveStatementImpl;
  60 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.StringTypeEffectiveStatementImpl;
  61 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.UnionTypeEffectiveStatementImpl;
  62 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.type.UnsignedIntegerTypeEffectiveStatementImpl;
  63
  64 public class TypeStatementImpl extends AbstractDeclaredStatement<String>
  65         implements TypeStatement {
  66     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(Rfc6020Mapping
  67             .TYPE)
  68             .add(Rfc6020Mapping.BASE, 0, 1)
  69             .add(Rfc6020Mapping.BIT, 0, MAX)
  70             .add(Rfc6020Mapping.ENUM, 0, MAX)
  71             .add(Rfc6020Mapping.FRACTION_DIGITS, 0, 1)
  72             .add(Rfc6020Mapping.LENGTH, 0, 1)
  73             .add(Rfc6020Mapping.PATH, 0, 1)
  74             .add(Rfc6020Mapping.PATTERN, 0, MAX)
  75             .add(Rfc6020Mapping.RANGE, 0, 1)
  76             .add(Rfc6020Mapping.REQUIRE_INSTANCE, 0, 1)
  77             .add(Rfc6020Mapping.TYPE, 0, MAX)
  78             .build();
  79
  80     protected TypeStatementImpl(final StmtContext<String, TypeStatement, ?> context) {
  81         super(context);
  82     }
  83
  84     public static class Definition
  85             extends
  86             AbstractStatementSupport<String, TypeStatement, EffectiveStatement<String, TypeStatement>> {
  87
  88         public Definition() {
  89             super(Rfc6020Mapping.TYPE);
  90         }
  91
  92         @Override
  93         public String parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value)
  94                 throws SourceException {
  95             return value;
  96         }
  97
  98         @Override
  99         public TypeStatement createDeclared(
 100                 final StmtContext<String, TypeStatement, ?> ctx) {
 101             return new TypeStatementImpl(ctx);
 102         }
 103
 104         @Override
 105         public TypeEffectiveStatement<TypeStatement> createEffective(
 106                 final StmtContext<String, TypeStatement, EffectiveStatement<String, TypeStatement>> ctx) {
 107
 108             // First look up the proper base type
 109             final TypeEffectiveStatement<TypeStatement> typeStmt;
 110             switch (ctx.getStatementArgument()) {
 111                 case TypeUtils.BINARY:
 112                     typeStmt = BuiltinEffectiveStatements.BINARY;
 113                     break;
 114                 case TypeUtils.BOOLEAN:
 115                     typeStmt = BuiltinEffectiveStatements.BOOLEAN;
 116                     break;
 117                 case TypeUtils.EMPTY:
 118                     typeStmt = BuiltinEffectiveStatements.EMPTY;
 119                     break;
 120                 case TypeUtils.INSTANCE_IDENTIFIER:
 121                     typeStmt = BuiltinEffectiveStatements.INSTANCE_IDENTIFIER;
 122                     break;
 123             case TypeUtils.INT8:
 124                 typeStmt = BuiltinEffectiveStatements.INT8;
 125                 break;
 126             case TypeUtils.INT16:
 127                 typeStmt = BuiltinEffectiveStatements.INT16;
 128                 break;
 129             case TypeUtils.INT32:
 130                 typeStmt = BuiltinEffectiveStatements.INT32;
 131                 break;
 132             case TypeUtils.INT64:
 133                 typeStmt = BuiltinEffectiveStatements.INT64;
 134                 break;
 135             case TypeUtils.STRING:
 136                 typeStmt = BuiltinEffectiveStatements.STRING;
 137                 break;
 138             case TypeUtils.UINT8:
 139                 typeStmt = BuiltinEffectiveStatements.UINT8;
 140                 break;
 141             case TypeUtils.UINT16:
 142                 typeStmt = BuiltinEffectiveStatements.UINT16;
 143                 break;
 144             case TypeUtils.UINT32:
 145                 typeStmt = BuiltinEffectiveStatements.UINT32;
 146                 break;
 147             case TypeUtils.UINT64:
 148                 typeStmt = BuiltinEffectiveStatements.UINT64;
 149                 break;
 150             default:
 151                 final QName qname = Utils.qNameFromArgument(ctx, ctx.getStatementArgument());
 152                 final StmtContext<?, TypedefStatement, TypedefEffectiveStatement> typedef =
 153                         ctx.getFromNamespace(TypeNamespace.class, qname);
 154                 if (typedef == null) {
 155                     throw new SourceException("Type '" + qname + "' not found", ctx.getStatementSourceReference());
 156                 }
 157
 158                 final TypedefEffectiveStatement effectiveTypedef = typedef.buildEffective();
 159                 Verify.verify(effectiveTypedef instanceof TypeDefEffectiveStatementImpl);
 160                 typeStmt = ((TypeDefEffectiveStatementImpl) effectiveTypedef).asTypeEffectiveStatement();
 161             }
 162
 163             if (ctx.declaredSubstatements().isEmpty() && ctx.effectiveSubstatements().isEmpty()) {
 164                 return typeStmt;
 165             }
 166
 167             // Now instantiate the proper effective statement for that type
 168             final TypeDefinition<?> baseType = typeStmt.getTypeDefinition();
 169             if (baseType instanceof BinaryTypeDefinition) {
 170                 return new BinaryTypeEffectiveStatementImpl(ctx, (BinaryTypeDefinition) baseType);
 171             } else if (baseType instanceof BitsTypeDefinition) {
 172                 return new BitsTypeEffectiveStatementImpl(ctx, (BitsTypeDefinition) baseType);
 173             } else if (baseType instanceof BooleanTypeDefinition) {
 174                 return new BooleanTypeEffectiveStatementImpl(ctx, (BooleanTypeDefinition) baseType);
 175             } else if (baseType instanceof DecimalTypeDefinition) {
 176                 return new DecimalTypeEffectiveStatementImpl(ctx, (DecimalTypeDefinition) baseType);
 177             } else if (baseType instanceof EmptyTypeDefinition) {
 178                 return new EmptyTypeEffectiveStatementImpl(ctx, (EmptyTypeDefinition) baseType);
 179             } else if (baseType instanceof EnumTypeDefinition) {
 180                 return new EnumTypeEffectiveStatementImpl(ctx, (EnumTypeDefinition) baseType);
 181             } else if (baseType instanceof IdentityrefTypeDefinition) {
 182                 return new IdentityrefTypeEffectiveStatementImpl(ctx, (IdentityrefTypeDefinition) baseType);
 183             } else if (baseType instanceof InstanceIdentifierTypeDefinition) {
 184                 return new InstanceIdentifierTypeEffectiveStatementImpl(ctx, (InstanceIdentifierTypeDefinition) baseType);
 185             } else if (baseType instanceof IntegerTypeDefinition) {
 186                 return new IntegerTypeEffectiveStatementImpl(ctx, (IntegerTypeDefinition) baseType);
 187             } else if (baseType instanceof LeafrefTypeDefinition) {
 188                 return new LeafrefTypeEffectiveStatementImpl(ctx, (LeafrefTypeDefinition) baseType);
 189             } else if (baseType instanceof StringTypeDefinition) {
 190                 return new StringTypeEffectiveStatementImpl(ctx, (StringTypeDefinition) baseType);
 191             } else if (baseType instanceof UnionTypeDefinition) {
 192                 return new UnionTypeEffectiveStatementImpl(ctx, (UnionTypeDefinition) baseType);
 193             } else if (baseType instanceof UnsignedIntegerTypeDefinition) {
 194                 return new UnsignedIntegerTypeEffectiveStatementImpl(ctx, (UnsignedIntegerTypeDefinition) baseType);
 195             } else {
 196                 throw new IllegalStateException("Unhandled base type " + baseType);
 197             }
 198         }
 199
 200         @Override
 201         public void onFullDefinitionDeclared(
 202                 final Mutable<String, TypeStatement, EffectiveStatement<String, TypeStatement>> stmt)
 203                 throws SourceException {
 204             SUBSTATEMENT_VALIDATOR.validate(stmt);
 205
 206             // if it is yang built-in type, no prerequisite is needed, so simply return
 207             if (TypeUtils.isYangBuiltInTypeString(stmt.getStatementArgument())) {
 208                 return;
 209             }
 210
 211             final QName typeQName = Utils.qNameFromArgument(stmt, stmt.getStatementArgument());
 212             final ModelActionBuilder typeAction = stmt.newInferenceAction(ModelProcessingPhase.EFFECTIVE_MODEL);
 213             final Prerequisite<StmtContext<?, ?, ?>> typePrereq = typeAction.requiresCtx(stmt, TypeNamespace.class,
 214                     typeQName, ModelProcessingPhase.EFFECTIVE_MODEL);
 215             typeAction.mutatesEffectiveCtx(stmt.getParentContext());
 216
 217             /*
 218              * If the type does not exist, throw new InferenceException.
 219              * Otherwise perform no operation.
 220              */
 221             typeAction.apply(new InferenceAction() {
 222
 223                 @Override
 224                 public void apply() {
 225                     // Intentional NOOP
 226                 }
 227
 228                 @Override
 229                 public void prerequisiteFailed(Collection<? extends Prerequisite<?>> failed) {
 230                     if (failed.contains(typePrereq)) {
 231                         throw new InferenceException(String.format("Type [%s] was not found.", typeQName), stmt
 232                                 .getStatementSourceReference());
 233                     }
 234                 }
 235             });
 236         }
 237     }
 238
 239     @Nonnull
 240     @Override
 241     public String getName() {
 242         return argument();
 243     }
 244 }