/*
* 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.stmt.rfc6020.effective;
import com.google.common.base.Optional;
import com.google.common.base.Predicates;
import com.google.common.collect.Collections2;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import javax.annotation.Nonnull;
import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
import org.opendaylight.yangtools.yang.model.api.SchemaNode;
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.spi.meta.StmtContextUtils;
import org.opendaylight.yangtools.yang.parser.stmt.reactor.StatementContextBase;
public abstract class EffectiveStatementBase<A, D extends DeclaredStatement<A>> implements EffectiveStatement<A, D> {
private final List<? extends EffectiveStatement<?, ?>> substatements;
/**
* Constructor.
*
* @param ctx
* context of statement.
*/
protected EffectiveStatementBase(final StmtContext<A, D, ?> ctx) {
final Collection<StatementContextBase<?, ?, ?>> effectiveSubstatements = ctx.effectiveSubstatements();
final Collection<StatementContextBase<?, ?, ?>> substatementsInit = new ArrayList<>();
final Collection<StatementContextBase<?, ?, ?>> supportedDeclaredSubStmts = Collections2.filter(
ctx.declaredSubstatements(), StmtContextUtils::areFeaturesSupported);
for (final StatementContextBase<?, ?, ?> declaredSubstatement : supportedDeclaredSubStmts) {
if (declaredSubstatement.getPublicDefinition().equals(YangStmtMapping.USES)) {
substatementsInit.add(declaredSubstatement);
substatementsInit.addAll(declaredSubstatement.getEffectOfStatement());
((StatementContextBase<?, ?, ?>) ctx).removeStatementsFromEffectiveSubstatements(declaredSubstatement
.getEffectOfStatement());
} else {
substatementsInit.add(declaredSubstatement);
}
}
substatementsInit.addAll(effectiveSubstatements);
this.substatements = ImmutableList.copyOf(initSubstatements(substatementsInit));
}
/**
* Create a set of substatements. This method is split out so it can be overridden in
* {@link ExtensionEffectiveStatementImpl} to leak a not-fully-initialized instance.
*
* @param substatementsInit proposed substatements
* @return Filtered substatements
*/
Collection<? extends EffectiveStatement<?, ?>> initSubstatements(
final Collection<StatementContextBase<?, ?, ?>> substatementsInit) {
return Collections2.transform(Collections2.filter(substatementsInit,
StmtContext::isSupportedToBuildEffective), StatementContextBase::buildEffective);
}
@Override
public final <K, V, N extends IdentifierNamespace<K, V>> V get(@Nonnull final Class<N> namespace, @Nonnull final K identifier) {
throw new UnsupportedOperationException("Not implemented yet.");
}
@Override
public final <K, V, N extends IdentifierNamespace<K, V>> Map<K, V> getAll(@Nonnull final Class<N> namespace) {
throw new UnsupportedOperationException("Not implemented yet.");
}
@Nonnull
@Override
public final Collection<? extends EffectiveStatement<?, ?>> effectiveSubstatements() {
return substatements;
}
protected final <S extends EffectiveStatement<?, ?>> S firstEffective(final Class<S> type) {
final Optional<? extends EffectiveStatement<?, ?>> possible = Iterables.tryFind(substatements,
Predicates.instanceOf(type));
return possible.isPresent() ? type.cast(possible.get()) : null;
}
protected final <S extends SchemaNode> S firstSchemaNode(final Class<S> type) {
final Optional<? extends EffectiveStatement<?, ?>> possible = Iterables.tryFind(substatements,
Predicates.instanceOf(type));
return possible.isPresent() ? type.cast(possible.get()) : null;
}
@SuppressWarnings("unchecked")
protected final <T> Collection<T> allSubstatementsOfType(final Class<T> type) {
return Collection.class.cast(Collections2.filter(substatements, Predicates.instanceOf(type)));
}
protected final <T> T firstSubstatementOfType(final Class<T> type) {
final Optional<? extends EffectiveStatement<?, ?>> possible = Iterables.tryFind(substatements,
Predicates.instanceOf(type));
return possible.isPresent() ? type.cast(possible.get()) : null;
}
protected final <R> R firstSubstatementOfType(final Class<?> type, final Class<R> returnType) {
final Optional<? extends EffectiveStatement<?, ?>> possible = Iterables.tryFind(substatements,
Predicates.and(Predicates.instanceOf(type), Predicates.instanceOf(returnType)));
return possible.isPresent() ? returnType.cast(possible.get()) : null;
}
protected final EffectiveStatement<?, ?> firstEffectiveSubstatementOfType(final Class<?> type) {
return Iterables.tryFind(substatements, Predicates.instanceOf(type)).orNull();
}
}