*/
package org.opendaylight.yangtools.yang.parser.stmt.reactor;
+import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Verify.verify;
import com.google.common.base.MoreObjects;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.common.QNameModule;
import org.opendaylight.yangtools.yang.common.YangVersion;
import org.opendaylight.yangtools.yang.model.api.SchemaPath;
import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
import org.opendaylight.yangtools.yang.model.api.stmt.SchemaNodeIdentifier;
import org.opendaylight.yangtools.yang.model.api.stmt.UsesStatement;
import org.opendaylight.yangtools.yang.model.repo.api.SourceIdentifier;
+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;
import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
// of this flag -- eliminating the initial alignment shadow used by below gap-filler fields.
private boolean isSupportedToBuildEffective = true;
+ // EffectiveConfig mapping
+ private static final int MASK_CONFIG = 0x03;
+ private static final int HAVE_CONFIG = 0x04;
+ // Effective instantiation mechanics for StatementContextBase: if this flag is set all substatements are known not
+ // change when instantiated. This includes context-independent statements as well as any statements which are
+ // ignored during copy instantiation.
+ private static final int ALL_INDEPENDENT = 0x08;
// Flag bit assignments
private static final int IS_SUPPORTED_BY_FEATURES = 0x10;
private static final int HAVE_SUPPORTED_BY_FEATURES = 0x20;
private static final int SET_SUPPORTED_BY_FEATURES = HAVE_SUPPORTED_BY_FEATURES | IS_SUPPORTED_BY_FEATURES;
private static final int SET_IGNORE_IF_FEATURE = HAVE_IGNORE_IF_FEATURE | IS_IGNORE_IF_FEATURE;
- // EffectiveConfig mapping
- private static final int MASK_CONFIG = 0x03;
- private static final int HAVE_CONFIG = 0x04;
private static final EffectiveConfig[] EFFECTIVE_CONFIGS;
static {
// SchemaPath cache for use with SubstatementContext and InferredStatementContext. This hurts RootStatementContext
// a bit in terms of size -- but those are only a few and SchemaPath is on its way out anyway.
- @Deprecated
- private volatile SchemaPath schemaPath;
+ // FIXME: this should become 'QName'
+ private SchemaPath schemaPath;
ReactorStmtCtx() {
// Empty on purpose
// definition().onNamespaceElementAdded(this, type, key, value);
}
+ /**
+ * Return the effective statement view of a copy operation. This method may return one of:
+ * <ul>
+ * <li>{@code this}, when the effective view did not change</li>
+ * <li>an InferredStatementContext, when there is a need for inference-equivalent copy</li>
+ * <li>{@code null}, when the statement failed to materialize</li>
+ * </ul>
+ *
+ * @param parent Proposed new parent
+ * @param type Copy operation type
+ * @param targetModule New target module
+ * @return {@link ReactorStmtCtx} holding effective view
+ */
+ abstract @Nullable ReactorStmtCtx<?, ?, ?> asEffectiveChildOf(StatementContextBase<?, ?, ?> parent, CopyType type,
+ QNameModule targetModule);
+
+ @Override
+ public final ReactorStmtCtx<A, D, E> replicaAsChildOf(final Mutable<?, ?, ?> parent) {
+ checkArgument(parent instanceof StatementContextBase, "Unsupported parent %s", parent);
+ return replicaAsChildOf((StatementContextBase<?, ?, ?>) parent);
+ }
+
+ abstract @NonNull ReplicaStatementContext<A, D, E> replicaAsChildOf(@NonNull StatementContextBase<?, ?, ?> parent);
+
//
//
// Statement build entry points -- both public and package-private.
return false;
}
- // These two exists only due to memory optimization, should live in AbstractResumedStatement. We are also reusing
+ // These two exist only due to memory optimization, should live in AbstractResumedStatement. We are also reusing
// this for ReplicaStatementContext's refcount tracking.
final boolean fullyDefined() {
return fullyDefined;
fullyDefined = true;
}
+ // These two exist only for StatementContextBase. Since we are squeezed for size, with only a single bit available
+ // in flags, we default to 'false' and only set the flag to true when we are absolutely sure -- and all other cases
+ // err on the side of caution by taking the time to evaluate each substatement separately.
+ final boolean allSubstatementsContextIndependent() {
+ return (flags & ALL_INDEPENDENT) != 0;
+ }
+
+ final void setAllSubstatementsContextIndependent() {
+ flags |= ALL_INDEPENDENT;
+ }
+
+ //
+ //
+ // Various functionality from AbstractTypeStatementSupport. This used to work on top of SchemaPath, now it still
+ // lives here. Ultimate future is either proper graduation or (more likely) move to AbstractTypeStatementSupport.
+ //
+ //
+
+ @Override
+ public final QName argumentAsTypeQName() {
+ final Object argument = argument();
+ verify(argument instanceof String, "Unexpected argument %s", argument);
+ return interpretAsQName((String) argument);
+ }
+
+ @Override
+ public final QNameModule effectiveNamespace() {
+ // FIXME: there has to be a better way to do this
+ return getSchemaPath().getLastComponent().getModule();
+ }
+
//
//
// Common SchemaPath cache. All of this is bound to be removed once YANGTOOLS-1066 is done.
// Exists only to support {SubstatementContext,InferredStatementContext}.schemaPath()
@Deprecated
- final @NonNull Optional<SchemaPath> substatementGetSchemaPath() {
- SchemaPath local = schemaPath;
- if (local == null) {
- synchronized (this) {
- local = schemaPath;
- if (local == null) {
- schemaPath = local = createSchemaPath((StatementContextBase<?, ?, ?>) coerceParentContext());
- }
- }
+ final @Nullable SchemaPath substatementGetSchemaPath() {
+ if (schemaPath == null) {
+ schemaPath = createSchemaPath((StatementContextBase<?, ?, ?>) coerceParentContext());
}
-
- return Optional.ofNullable(local);
+ return schemaPath;
}
+ // FIXME: 7.0.0: this method's logic needs to be moved to the respective StatementSupport classes
@Deprecated
private SchemaPath createSchemaPath(final StatementContextBase<?, ?, ?> parent) {
- final Optional<SchemaPath> maybeParentPath = parent.schemaPath();
- verify(maybeParentPath.isPresent(), "Parent %s does not have a SchemaPath", parent);
- final SchemaPath parentPath = maybeParentPath.get();
-
+ final SchemaPath parentPath = parent.getSchemaPath();
if (StmtContextUtils.isUnknownStatement(this)) {
return parentPath.createChild(publicDefinition().getStatementName());
}
if (argument instanceof QName) {
final QName qname = (QName) argument;
if (producesDeclared(UsesStatement.class)) {
- return maybeParentPath.orElse(null);
+ return parentPath;
}
return parentPath.createChild(qname);
}
if (argument instanceof String) {
- // FIXME: This may yield illegal argument exceptions
- final Optional<StmtContext<A, D, E>> originalCtx = getOriginalCtx();
- final QName qname = StmtContextUtils.qnameFromArgument(originalCtx.orElse(this), (String) argument);
- return parentPath.createChild(qname);
+ return parentPath.createChild(interpretAsQName((String) argument));
}
if (argument instanceof SchemaNodeIdentifier
&& (producesDeclared(AugmentStatement.class) || producesDeclared(RefineStatement.class)
return parentPath.createChild(((SchemaNodeIdentifier) argument).getNodeIdentifiers());
}
- // FIXME: this does not look right
- return maybeParentPath.orElse(null);
+ // FIXME: this does not look right, investigate more?
+ return parentPath;
+ }
+
+ private @NonNull QName interpretAsQName(final String argument) {
+ // FIXME: This may yield illegal argument exceptions
+ return StmtContextUtils.qnameFromArgument(getOriginalCtx().orElse(this), argument);
}
//
}
}
+ /**
+ * Return {@code true} if this context has an outstanding reference.
+ *
+ * @return True if this context has an outstanding reference.
+ */
+ final boolean haveRef() {
+ return refcount > REFCOUNT_NONE;
+ }
+
private void lastDecRef() {
if (noImplictRef()) {
// We are no longer guarded by effective instance
Code Review / yangtools.git / blobdiff