Add yang.parser.rfc7950.stmt.meta

[yangtools.git] / yang / yang-parser-rfc7950 / src / main / java / org / opendaylight / yangtools / yang / parser / rfc7950 / stmt / uses / UsesStatementSupport.java

diff --git a/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/uses/UsesStatementSupport.java b/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/uses/UsesStatementSupport.java
index 58cc4125f11d73c3c200700f852730a64ab96b0a..117fcf30dfd521be07afc0baff9326bef4d98a0a 100644 (file)
--- a/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/uses/UsesStatementSupport.java
+++ b/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/uses/UsesStatementSupport.java
@@ -7,9 +7,9 @@
  */
 package org.opendaylight.yangtools.yang.parser.rfc7950.stmt.uses;
 
+import static com.google.common.base.Verify.verify;
 import static com.google.common.base.Verify.verifyNotNull;
 
-import com.google.common.base.Verify;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
@@ -36,11 +36,14 @@ import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier.Desce
 import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeEffectiveStatement;
 import org.opendaylight.yangtools.yang.model.api.stmt.UsesEffectiveStatement;
 import org.opendaylight.yangtools.yang.model.api.stmt.UsesStatement;
+import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatements;
+import org.opendaylight.yangtools.yang.model.spi.meta.EffectiveStatementMixins;
 import org.opendaylight.yangtools.yang.parser.rfc7950.reactor.YangValidationBundles;
-import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.BaseQNameStatementSupport;
 import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.refine.RefineEffectiveStatementImpl;
+import org.opendaylight.yangtools.yang.parser.rfc7950.stmt.refine.RefineTargetNamespace;
 import org.opendaylight.yangtools.yang.parser.spi.GroupingNamespace;
 import org.opendaylight.yangtools.yang.parser.spi.SchemaTreeNamespace;
+import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractQNameStatementSupport;
 import org.opendaylight.yangtools.yang.parser.spi.meta.CopyType;
 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
@@ -62,7 +65,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 public final class UsesStatementSupport
-        extends BaseQNameStatementSupport<UsesStatement, UsesEffectiveStatement> {
+        extends AbstractQNameStatementSupport<UsesStatement, UsesEffectiveStatement> {
     private static final Logger LOG = LoggerFactory.getLogger(UsesStatementSupport.class);
     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(YangStmtMapping
         .USES)
@@ -77,7 +80,7 @@ public final class UsesStatementSupport
     private static final UsesStatementSupport INSTANCE = new UsesStatementSupport();
 
     private UsesStatementSupport() {
-        super(YangStmtMapping.USES, CopyPolicy.DECLARED_COPY);
+        super(YangStmtMapping.USES, StatementPolicy.exactReplica());
     }
 
     public static UsesStatementSupport getInstance() {
@@ -136,12 +139,12 @@ public final class UsesStatementSupport
     @Override
     protected UsesStatement createDeclared(final StmtContext<QName, UsesStatement, ?> ctx,
             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
-        return new RegularUsesStatement(ctx.getRawArgument(), ctx.getArgument(), substatements);
+        return DeclaredStatements.createUses(ctx.getRawArgument(), ctx.getArgument(), substatements);
     }
 
     @Override
     protected UsesStatement createEmptyDeclared(final StmtContext<QName, UsesStatement, ?> ctx) {
-        return new EmptyUsesStatement(ctx.getRawArgument(), ctx.getArgument());
+        return DeclaredStatements.createUses(ctx.getRawArgument(), ctx.getArgument());
     }
 
     @Override
@@ -149,7 +152,7 @@ public final class UsesStatementSupport
             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
         final GroupingDefinition sourceGrouping = (GroupingDefinition)
             verifyNotNull(stmt.getFromNamespace(SourceGroupingNamespace.class, Empty.getInstance())).buildEffective();
-        final int flags = historyAndStatusFlags(stmt.history(), substatements);
+        final int flags = EffectiveStatementMixins.historyAndStatusFlags(stmt.history(), substatements);
         final QName argument = stmt.getArgument();
         final UsesStatement declared = stmt.declared();
 
@@ -302,19 +305,27 @@ public final class UsesStatementSupport
         InferenceException.throwIf(!optRefineTargetCtx.isPresent(), subStmtCtx, "Refine target node %s not found.",
             refineArgument);
 
+        // FIXME: This communicates the looked-up target node to RefineStatementSupport.buildEffective(). We should do
+        //        this trick through a shared namespace or similar reactor-agnostic meeting place. It really feels like
+        //        an inference action RefineStatementSupport should be doing.
         final StmtContext<?, ?, ?> refineTargetNodeCtx = optRefineTargetCtx.get();
         if (StmtContextUtils.isUnknownStatement(refineTargetNodeCtx)) {
             LOG.trace("Refine node '{}' in uses '{}' has target node unknown statement '{}'. "
                 + "Refine has been skipped. At line: {}", subStmtCtx.argument(),
                 subStmtCtx.coerceParentContext().argument(), refineTargetNodeCtx.argument(),
                 subStmtCtx.sourceReference());
-            subStmtCtx.addAsEffectOfStatement(refineTargetNodeCtx);
-            return;
+        } else {
+            verify(refineTargetNodeCtx instanceof StatementContextBase);
+            addOrReplaceNodes(subStmtCtx, (StatementContextBase<?, ?, ?>) refineTargetNodeCtx);
         }
 
-        Verify.verify(refineTargetNodeCtx instanceof StatementContextBase);
-        addOrReplaceNodes(subStmtCtx, (StatementContextBase<?, ?, ?>) refineTargetNodeCtx);
-        subStmtCtx.addAsEffectOfStatement(refineTargetNodeCtx);
+        // Target is a prerequisite for the 'refine', hence if the target is not supported, the refine is not supported
+        // as well. Otherwise add a pointer to the target into refine's local namespace.
+        if (refineTargetNodeCtx.isSupportedToBuildEffective()) {
+            subStmtCtx.addToNs(RefineTargetNamespace.class, Empty.getInstance(), refineTargetNodeCtx);
+        } else {
+            subStmtCtx.setIsSupportedToBuildEffective(false);
+        }
     }
 
     private static void addOrReplaceNodes(final Mutable<?, ?, ?> subStmtCtx,
@@ -337,14 +348,13 @@ public final class UsesStatementSupport
                 refineSubstatementCtx.getRoot().rawArgument(), refineSubstatementCtx.coerceParentContext().argument(),
                 refineSubstatementCtx.publicDefinition(), refineTargetNodeCtx.publicDefinition());
 
-        if (isAllowedToAddByRefine(refineSubstatementDef)) {
-            refineTargetNodeCtx.addEffectiveSubstatement(refineSubstatementCtx);
-        } else {
+        if (!isAllowedToAddByRefine(refineSubstatementDef)) {
             refineTargetNodeCtx.removeStatementFromEffectiveSubstatements(refineSubstatementDef);
-            refineTargetNodeCtx.addEffectiveSubstatement(refineSubstatementCtx);
         }
+        refineTargetNodeCtx.addEffectiveSubstatement(refineSubstatementCtx.replicaAsChildOf(refineTargetNodeCtx));
     }
 
+    // FIXME: clarify this and inline into single caller
     private static boolean isAllowedToAddByRefine(final StatementDefinition publicDefinition) {
         return YangStmtMapping.MUST.equals(publicDefinition);
     }