yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/IncludeStatementImpl.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.meta.ModelProcessingPhase.SOURCE_LINKAGE;
  11 import static org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils.firstAttributeOf;
  12
  13 import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.IncludeEffectiveStatementImpl;
  14
  15 import java.net.URI;
  16 import java.text.ParseException;
  17 import java.util.Collection;
  18 import java.util.Date;
  19 import org.opendaylight.yangtools.yang.common.SimpleDateFormatUtil;
  20 import org.opendaylight.yangtools.yang.model.api.ModuleIdentifier;
  21 import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
  22 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  23 import org.opendaylight.yangtools.yang.model.api.stmt.IncludeStatement;
  24 import org.opendaylight.yangtools.yang.model.api.stmt.PrefixStatement;
  25 import org.opendaylight.yangtools.yang.model.api.stmt.RevisionDateStatement;
  26 import org.opendaylight.yangtools.yang.parser.builder.impl.ModuleIdentifierImpl;
  27 import org.opendaylight.yangtools.yang.parser.spi.SubmoduleNamespace;
  28 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
  29 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
  30 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
  31 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
  32 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
  33 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
  34 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  35 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  36 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  37 import com.google.common.base.Optional;
  38
  39 public class IncludeStatementImpl extends AbstractDeclaredStatement<String> implements IncludeStatement {
  40
  41     protected IncludeStatementImpl(StmtContext<String, IncludeStatement, ?> context) {
  42         super(context);
  43     }
  44
  45     public static class Definition extends
  46             AbstractStatementSupport<String, IncludeStatement, EffectiveStatement<String, IncludeStatement>> {
  47
  48         public Definition() {
  49             super(Rfc6020Mapping.INCLUDE);
  50         }
  51
  52         @Override
  53         public String parseArgumentValue(StmtContext<?, ?, ?> ctx, String value) {
  54             return value;
  55         }
  56
  57         @Override
  58         public IncludeStatement createDeclared(StmtContext<String, IncludeStatement, ?> ctx) {
  59             return new IncludeStatementImpl(ctx);
  60         }
  61
  62         @Override
  63         public EffectiveStatement<String, IncludeStatement> createEffective(
  64                 StmtContext<String, IncludeStatement, EffectiveStatement<String, IncludeStatement>> ctx) {
  65             return new IncludeEffectiveStatementImpl(ctx);
  66         }
  67
  68         @Override
  69         public void onLinkageDeclared(
  70                 final Mutable<String, IncludeStatement, EffectiveStatement<String, IncludeStatement>> stmt)
  71                 throws SourceException {
  72             final ModuleIdentifier includeSubmoduleIdentifier = getIncludeSubmoduleIdentifier(stmt);
  73
  74             ModelActionBuilder includeAction = stmt.newInferenceAction(SOURCE_LINKAGE);
  75             final Prerequisite<StmtContext<?, ?, ?>> requiresCtxPrerequisite = includeAction.requiresCtx(stmt,
  76                     SubmoduleNamespace.class, includeSubmoduleIdentifier, SOURCE_LINKAGE);
  77             final Prerequisite<Mutable<?, ?, ?>> mutatesCtxPrerequisite = includeAction.mutatesCtx(stmt.getRoot(),
  78                     SOURCE_LINKAGE);
  79
  80             includeAction.apply(new InferenceAction() {
  81
  82                 @Override
  83                 public void apply() throws InferenceException {
  84                     StmtContext<?, ?, ?> includedSubmoduleStmt = requiresCtxPrerequisite.get();
  85
  86                     mutatesCtxPrerequisite.get().addToNs(IncludedModuleContext.class, includeSubmoduleIdentifier,
  87                             includedSubmoduleStmt);
  88                 }
  89
  90                 @Override
  91                 public void prerequisiteFailed(Collection<? extends Prerequisite<?>> failed) throws InferenceException {
  92                     if (failed.contains(requiresCtxPrerequisite)) {
  93                         throw new InferenceException("Included submodule was not found.", stmt
  94                                 .getStatementSourceReference());
  95                     }
  96                 }
  97             });
  98         }
  99
 100         private static ModuleIdentifier getIncludeSubmoduleIdentifier(Mutable<String, IncludeStatement, ?> stmt) {
 101
 102             String subModuleName = stmt.getStatementArgument();
 103             String revisionArg = firstAttributeOf(stmt.declaredSubstatements(), RevisionDateStatement.class);
 104             final Optional<Date> revision;
 105             if (revisionArg != null) {
 106                 try {
 107                     revision = Optional.of(SimpleDateFormatUtil.getRevisionFormat().parse(revisionArg));
 108                 } catch (ParseException e) {
 109                     throw new IllegalArgumentException(e);
 110                 }
 111             } else {
 112                 revision = Optional.of(SimpleDateFormatUtil.DEFAULT_DATE_IMP);
 113             }
 114
 115             return new ModuleIdentifierImpl(subModuleName, Optional.<URI> absent(), revision);
 116         }
 117     }
 118
 119     @Override
 120     public String getModule() {
 121         return argument();
 122     }
 123
 124     @Override
 125     public PrefixStatement getPrefix() {
 126         return firstDeclared(PrefixStatement.class);
 127     }
 128
 129     @Override
 130     public RevisionDateStatement getRevisionDate() {
 131         return firstDeclared(RevisionDateStatement.class);
 132     }
 133
 134 }