Remove StmtOrderingNamespace

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

diff --git a/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/AbstractEffectiveStatement.java b/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/AbstractEffectiveStatement.java
index f98368391cd535c89633359b5d7bfcf2d692055f..980e7455ce572596c8ca3e44a3371275ab50bfa8 100644 (file)
--- a/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/AbstractEffectiveStatement.java
+++ b/yang/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/AbstractEffectiveStatement.java
@@ -10,13 +10,23 @@ package org.opendaylight.yangtools.yang.parser.rfc7950.stmt;
 import static java.util.Objects.requireNonNull;
 
 import com.google.common.annotations.Beta;
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
+import java.util.Collection;
+import java.util.LinkedHashMap;
 import java.util.Map;
 import java.util.Optional;
 import org.eclipse.jdt.annotation.NonNull;
+import org.opendaylight.yangtools.yang.common.QName;
 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
 import org.opendaylight.yangtools.yang.model.api.meta.IdentifierNamespace;
+import org.opendaylight.yangtools.yang.model.api.stmt.CaseEffectiveStatement;
+import org.opendaylight.yangtools.yang.model.api.stmt.ChoiceEffectiveStatement;
+import org.opendaylight.yangtools.yang.model.api.stmt.DataTreeEffectiveStatement;
+import org.opendaylight.yangtools.yang.model.api.stmt.SchemaTreeEffectiveStatement;
+import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
+import org.opendaylight.yangtools.yang.parser.spi.source.StatementSourceReference;
 
 /**
  * Baseline stateless implementation of an EffectiveStatement. This class adds a few default implementations and
@@ -33,7 +43,7 @@ import org.opendaylight.yangtools.yang.model.api.meta.IdentifierNamespace;
  */
 @Beta
 public abstract class AbstractEffectiveStatement<A, D extends DeclaredStatement<A>>
-        implements EffectiveStatement<A, D> {
+        extends AbstractModelStatement<A> implements EffectiveStatement<A, D> {
     @Override
     public final <K, V, N extends IdentifierNamespace<K, V>> Optional<? extends V> get(final Class<N> namespace,
             final K identifier) {
@@ -46,6 +56,11 @@ public abstract class AbstractEffectiveStatement<A, D extends DeclaredStatement<
         return ret.isPresent() ? ret.get() : ImmutableMap.of();
     }
 
+    @Override
+    public Collection<? extends EffectiveStatement<?, ?>> effectiveSubstatements() {
+        return ImmutableList.of();
+    }
+
     /**
      * Return the statement-specific contents of specified namespace, if available.
      *
@@ -56,4 +71,73 @@ public abstract class AbstractEffectiveStatement<A, D extends DeclaredStatement<
             final @NonNull Class<N> namespace) {
         return Optional.empty();
     }
+
+    /**
+     * Utility method for recovering singleton lists squashed by {@link #maskList(ImmutableList)}.
+     *
+     * @param masked list to unmask
+     * @return Unmasked list
+     * @throws NullPointerException if masked is null
+     * @throws ClassCastException if masked object does not match EffectiveStatement
+     */
+    @SuppressWarnings({ "rawtypes", "unchecked" })
+    protected static final @NonNull ImmutableList<? extends EffectiveStatement<?, ?>> unmaskList(
+            final @NonNull Object masked) {
+        return (ImmutableList) unmaskList(masked, EffectiveStatement.class);
+    }
+
+    // TODO: below methods need to find a better place, this is just a temporary hideout as their public class is on
+    //       its way out
+    static @NonNull Map<QName, SchemaTreeEffectiveStatement<?>> createSchemaTreeNamespace(
+            final StatementSourceReference ref, final Collection<? extends EffectiveStatement<?, ?>> substatements) {
+        final Map<QName, SchemaTreeEffectiveStatement<?>> schemaChildren = new LinkedHashMap<>();
+        substatements.stream().filter(SchemaTreeEffectiveStatement.class::isInstance)
+            .forEach(child -> putChild(schemaChildren, (SchemaTreeEffectiveStatement) child, ref, "schema"));
+        return schemaChildren;
+    }
+
+    static @NonNull ImmutableMap<QName, DataTreeEffectiveStatement<?>> createDataTreeNamespace(
+            final StatementSourceReference ref,
+            final Collection<SchemaTreeEffectiveStatement<?>> schemaTreeStatements,
+            // Note: this dance is needed to not retain ImmutableMap$Values
+            final ImmutableMap<QName, SchemaTreeEffectiveStatement<?>> schemaTreeNamespace) {
+        final Map<QName, DataTreeEffectiveStatement<?>> dataChildren = new LinkedHashMap<>();
+        boolean sameAsSchema = true;
+
+        for (SchemaTreeEffectiveStatement<?> child : schemaTreeStatements) {
+            if (child instanceof DataTreeEffectiveStatement) {
+                putChild(dataChildren, (DataTreeEffectiveStatement<?>) child, ref, "data");
+            } else {
+                sameAsSchema = false;
+                putChoiceDataChildren(dataChildren, ref, child);
+            }
+        }
+
+        // This is a mighty hack to lower memory usage: if we consumed all schema tree children as data nodes,
+        // the two maps are equal and hence we can share the instance.
+        return sameAsSchema ? (ImmutableMap) schemaTreeNamespace : ImmutableMap.copyOf(dataChildren);
+    }
+
+    private static <T extends SchemaTreeEffectiveStatement<?>> void putChild(final Map<QName, T> map,
+            final T child, final StatementSourceReference ref, final String tree) {
+        final QName id = child.getIdentifier();
+        final T prev = map.putIfAbsent(id, child);
+        SourceException.throwIf(prev != null, ref,
+                "Cannot add %s tree child with name %s, a conflicting child already exists", tree, id);
+    }
+
+    private static void putChoiceDataChildren(final Map<QName, DataTreeEffectiveStatement<?>> map,
+            final StatementSourceReference ref, final SchemaTreeEffectiveStatement<?> child) {
+        // For choice statements go through all their cases and fetch their data children
+        if (child instanceof ChoiceEffectiveStatement) {
+            child.streamEffectiveSubstatements(CaseEffectiveStatement.class).forEach(
+                caseStmt -> caseStmt.streamEffectiveSubstatements(SchemaTreeEffectiveStatement.class).forEach(stmt -> {
+                    if (stmt instanceof DataTreeEffectiveStatement) {
+                        putChild(map, (DataTreeEffectiveStatement<?>) stmt, ref, "data");
+                    } else {
+                        putChoiceDataChildren(map, ref, stmt);
+                    }
+                }));
+        }
+    }
 }