| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.ignite.internal.processors.query.calcite; |
| |
| import java.util.Collection; |
| import java.util.UUID; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ConcurrentMap; |
| import org.apache.ignite.cache.query.QueryCancelledException; |
| import org.apache.ignite.cache.query.SqlFieldsQuery; |
| import org.apache.ignite.internal.GridKernalContext; |
| import org.apache.ignite.internal.processors.cache.query.GridCacheQueryType; |
| import org.apache.ignite.internal.processors.query.GridQueryCancel; |
| import org.apache.ignite.internal.processors.query.RunningQuery; |
| import org.apache.ignite.internal.processors.query.RunningQueryManager; |
| import org.apache.ignite.internal.processors.query.calcite.util.AbstractService; |
| import org.apache.ignite.internal.util.IgniteUtils; |
| |
| /** |
| * Registry of the running queries. |
| */ |
| public class QueryRegistryImpl extends AbstractService implements QueryRegistry { |
| /** */ |
| private final ConcurrentMap<UUID, RunningQuery> runningQrys = new ConcurrentHashMap<>(); |
| |
| /** */ |
| protected final GridKernalContext kctx; |
| |
| /** */ |
| public QueryRegistryImpl(GridKernalContext ctx) { |
| super(ctx); |
| |
| kctx = ctx; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public RunningQuery register(RunningQuery qry) { |
| return runningQrys.computeIfAbsent(qry.id(), k -> { |
| if (!(qry instanceof RootQuery)) |
| return qry; |
| |
| RootQuery<?> rootQry = (RootQuery<?>)qry; |
| |
| RunningQueryManager qryMgr = kctx.query().runningQueryManager(); |
| |
| SqlFieldsQuery fieldsQry = rootQry.context().unwrap(SqlFieldsQuery.class); |
| |
| String initiatorId = fieldsQry != null ? fieldsQry.getQueryInitiatorId() : null; |
| |
| long locId = qryMgr.register(rootQry.sql(), GridCacheQueryType.SQL_FIELDS, rootQry.context().schemaName(), |
| false, createCancelToken(qry), initiatorId, false, false, false); |
| |
| qryMgr.trackRequestId(locId); |
| |
| rootQry.localQueryId(locId); |
| |
| return qry; |
| }); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public RunningQuery query(UUID id) { |
| return runningQrys.get(id); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void unregister(UUID id) { |
| RunningQuery val = runningQrys.remove(id); |
| if (val instanceof RootQuery<?>) |
| kctx.query().runningQueryManager().unregister(((RootQuery<?>)val).localQueryId(), null); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public Collection<? extends RunningQuery> runningQueries() { |
| return runningQrys.values(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void tearDown() { |
| runningQrys.values().forEach(q -> IgniteUtils.close(q::cancel, log)); |
| runningQrys.clear(); |
| } |
| |
| /** */ |
| private static GridQueryCancel createCancelToken(RunningQuery qry) { |
| GridQueryCancel token = new GridQueryCancel(); |
| try { |
| token.add(qry::cancel); |
| } |
| catch (QueryCancelledException ignore) { |
| // Ignore, since it is impossible; |
| } |
| return token; |
| } |
| } |