Refactor InferenceAction

[yangtools.git] / yang / yang-parser-impl / src / main / java / org / opendaylight / yangtools / yang / parser / stmt / rfc6020 / BaseStatementImpl.java

diff --git a/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/BaseStatementImpl.java b/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/BaseStatementImpl.java
index 5460fd238f66e6fb42674069392f8d24e0527d23..e0c5b7a5ef17392104ad1d3885d179aa86032cf8 100644 (file)
--- a/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/BaseStatementImpl.java
+++ b/yang/yang-parser-impl/src/main/java/org/opendaylight/yangtools/yang/parser/stmt/rfc6020/BaseStatementImpl.java
@@ -1,4 +1,4 @@
-/**
+/*
  * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
  *
  * This program and the accompanying materials are made available under the
@@ -7,53 +7,107 @@
  */
 package org.opendaylight.yangtools.yang.parser.stmt.rfc6020;
 
-import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.BaseEffectiveStatementImpl;
-
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import javax.annotation.Nonnull;
 import org.opendaylight.yangtools.yang.common.QName;
-import org.opendaylight.yangtools.yang.model.api.Rfc6020Mapping;
+import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
 import org.opendaylight.yangtools.yang.model.api.stmt.BaseStatement;
+import org.opendaylight.yangtools.yang.model.api.stmt.IdentityStatement;
+import org.opendaylight.yangtools.yang.parser.spi.IdentityNamespace;
+import org.opendaylight.yangtools.yang.parser.spi.SubstatementValidator;
 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractDeclaredStatement;
 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStatementSupport;
+import org.opendaylight.yangtools.yang.parser.spi.meta.DerivedIdentitiesNamespace;
+import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
+import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
+import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
+import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
+import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
+import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
+import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
+import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
+import org.opendaylight.yangtools.yang.parser.stmt.rfc6020.effective.BaseEffectiveStatementImpl;
 
-public class BaseStatementImpl extends AbstractDeclaredStatement<QName>
-        implements BaseStatement {
+public class BaseStatementImpl extends AbstractDeclaredStatement<QName> implements BaseStatement {
+    private static final SubstatementValidator SUBSTATEMENT_VALIDATOR =
+            SubstatementValidator.builder(YangStmtMapping.BASE).build();
 
-    protected BaseStatementImpl(StmtContext<QName, BaseStatement, ?> context) {
+    protected BaseStatementImpl(final StmtContext<QName, BaseStatement, ?> context) {
         super(context);
     }
 
     public static class Definition
-            extends
-            AbstractStatementSupport<QName, BaseStatement, EffectiveStatement<QName, BaseStatement>> {
+            extends AbstractStatementSupport<QName, BaseStatement, EffectiveStatement<QName, BaseStatement>> {
 
         public Definition() {
-            super(Rfc6020Mapping.BASE);
+            super(YangStmtMapping.BASE);
         }
 
         @Override
-        public QName parseArgumentValue(StmtContext<?, ?, ?> ctx, String value) {
+        public QName parseArgumentValue(final StmtContext<?, ?, ?> ctx, final String value) {
             return Utils.qNameFromArgument(ctx, value);
         }
 
         @Override
-        public BaseStatement createDeclared(
-                StmtContext<QName, BaseStatement, ?> ctx) {
+        public BaseStatement createDeclared(final StmtContext<QName, BaseStatement, ?> ctx) {
             return new BaseStatementImpl(ctx);
         }
 
         @Override
         public EffectiveStatement<QName, BaseStatement> createEffective(
-                StmtContext<QName, BaseStatement, EffectiveStatement<QName, BaseStatement>> ctx) {
+                final StmtContext<QName, BaseStatement, EffectiveStatement<QName, BaseStatement>> ctx) {
             return new BaseEffectiveStatementImpl(ctx);
         }
 
+        @Override
+        public void onStatementDefinitionDeclared(
+                final Mutable<QName, BaseStatement, EffectiveStatement<QName, BaseStatement>> baseStmtCtx) {
+            final Mutable<?, ?, ?> baseParentCtx = baseStmtCtx.getParentContext();
+            if (StmtContextUtils.producesDeclared(baseParentCtx, IdentityStatement.class)) {
+
+                final QName baseIdentityQName = baseStmtCtx.getStatementArgument();
+                final ModelActionBuilder baseIdentityAction = baseStmtCtx.newInferenceAction(
+                    ModelProcessingPhase.STATEMENT_DEFINITION);
+                final Prerequisite<StmtContext<?, ?, ?>> requiresPrereq = baseIdentityAction.requiresCtx(baseStmtCtx,
+                    IdentityNamespace.class, baseIdentityQName, ModelProcessingPhase.STATEMENT_DEFINITION);
+                final Prerequisite<StmtContext.Mutable<?, ?, ?>> mutatesPrereq = baseIdentityAction.mutatesCtx(
+                    baseParentCtx, ModelProcessingPhase.STATEMENT_DEFINITION);
+
+                baseIdentityAction.apply(new InferenceAction() {
+                    @Override
+                    public void apply(final InferenceContext ctx) {
+                        List<StmtContext<?, ?, ?>> derivedIdentities = baseStmtCtx.getFromNamespace(
+                            DerivedIdentitiesNamespace.class, baseStmtCtx.getStatementArgument());
+                        if (derivedIdentities == null) {
+                            derivedIdentities = new ArrayList<>(1);
+                            baseStmtCtx.addToNs(DerivedIdentitiesNamespace.class, baseIdentityQName, derivedIdentities);
+                        }
+                        derivedIdentities.add(baseParentCtx);
+                    }
+
+                    @Override
+                    public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
+                        throw new InferenceException(baseStmtCtx.getStatementSourceReference(),
+                            "Unable to resolve identity %s and base identity %s",
+                            baseParentCtx.getStatementArgument(), baseStmtCtx.getStatementArgument());
+                    }
+                });
+            }
+        }
+
+        @Override
+        protected SubstatementValidator getSubstatementValidator() {
+            return SUBSTATEMENT_VALIDATOR;
+        }
     }
 
+    @Nonnull
     @Override
     public QName getName() {
         return argument();
     }
-
 }