/*
* Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
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.Collections2;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Map;
import java.util.Optional;
import java.util.function.Predicate;
import org.eclipse.jdt.annotation.NonNull;
import org.eclipse.jdt.annotation.Nullable;
import org.opendaylight.yangtools.yang.model.api.SchemaNode;
import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
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.parser.spi.meta.StmtContext;
import org.opendaylight.yangtools.yang.parser.stmt.reactor.StatementContextBase;
public abstract class EffectiveStatementBase> implements EffectiveStatement {
private final @NonNull ImmutableList extends EffectiveStatement, ?>> substatements;
/**
* Constructor.
*
* @param ctx context of statement.
*/
protected EffectiveStatementBase(final StmtContext ctx) {
final Collection extends StmtContext, ?, ?>> effectiveSubstatements = ctx.effectiveSubstatements();
final Collection> substatementsInit = new ArrayList<>();
final Collection extends StmtContext, ?, ?>> supportedDeclaredSubStmts = Collections2.filter(
ctx.declaredSubstatements(), StmtContext::isSupportedByFeatures);
for (final StmtContext, ?, ?> declaredSubstatement : supportedDeclaredSubStmts) {
if (YangStmtMapping.USES == declaredSubstatement.getPublicDefinition()) {
substatementsInit.add(declaredSubstatement);
substatementsInit.addAll(declaredSubstatement.getEffectOfStatement());
((StatementContextBase, ?, ?>) ctx).removeStatementsFromEffectiveSubstatements(declaredSubstatement
.getEffectOfStatement());
} else {
substatementsInit.add(declaredSubstatement);
}
}
substatementsInit.addAll(effectiveSubstatements);
this.substatements = ImmutableList.copyOf(initSubstatements(ctx, substatementsInit));
}
@Beta
protected Collection extends EffectiveStatement, ?>> initSubstatements(final StmtContext ctx,
final Collection extends StmtContext, ?, ?>> substatementsInit) {
return initSubstatements(substatementsInit);
}
/**
* Create a set of substatements. This method is split out so it can be overridden in
* ExtensionEffectiveStatementImpl to leak a not-fully-initialized instance.
*
* @param substatementsInit proposed substatements
* @return Filtered substatements
*/
protected Collection extends EffectiveStatement, ?>> initSubstatements(
final Collection extends StmtContext, ?, ?>> substatementsInit) {
return Collections2.transform(Collections2.filter(substatementsInit,
StmtContext::isSupportedToBuildEffective), StmtContext::buildEffective);
}
@Override
public final > Optional extends V> get(final Class namespace,
final K identifier) {
return Optional.ofNullable(getAll(namespace).get(requireNonNull(identifier)));
}
@Override
public final > Map getAll(final Class namespace) {
final Optional extends Map> ret = getNamespaceContents(requireNonNull(namespace));
return ret.isPresent() ? ret.get() : ImmutableMap.of();
}
/**
* Return the statement-specific contents of specified namespace, if available.
*
* @param namespace Requested namespace
* @return Namespace contents, if available.
*/
@Beta
protected > Optional extends Map> getNamespaceContents(
final @NonNull Class namespace) {
return Optional.empty();
}
@Override
public final Collection extends EffectiveStatement, ?>> effectiveSubstatements() {
return substatements;
}
protected final S firstSchemaNode(final Class type) {
return substatements.stream().filter(type::isInstance).findFirst().map(type::cast).orElse(null);
}
@SuppressWarnings("unchecked")
public final Collection allSubstatementsOfType(final Class type) {
return Collection.class.cast(Collections2.filter(substatements, type::isInstance));
}
protected final @Nullable T firstSubstatementOfType(final Class type) {
return substatements.stream().filter(type::isInstance).findFirst().map(type::cast).orElse(null);
}
protected final R firstSubstatementOfType(final Class> type, final Class returnType) {
return substatements.stream()
.filter(((Predicate