/*
* ToroDB
* Copyright © 2014 8Kdata Technology (www.8kdata.com)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.torodb.torod.impl.sql;
import com.google.common.cache.Cache;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.RemovalNotification;
import com.torodb.core.TableRefFactory;
import com.torodb.core.annotations.TorodbIdleService;
import com.torodb.core.backend.BackendService;
import com.torodb.core.d2r.D2RTranslatorFactory;
import com.torodb.core.d2r.IdentifierFactory;
import com.torodb.core.d2r.R2DTranslator;
import com.torodb.core.services.IdleTorodbService;
import com.torodb.core.transaction.InternalTransactionManager;
import com.torodb.core.transaction.metainf.ImmutableMetaSnapshot;
import com.torodb.torod.TorodServer;
import com.torodb.torod.pipeline.InsertPipelineFactory;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;
import javax.inject.Inject;
/**
*
*/
public class SqlTorodServer extends IdleTorodbService implements TorodServer {
private final AtomicInteger connectionIdCounter = new AtomicInteger();
private final D2RTranslatorFactory d2RTranslatorFactory;
private final R2DTranslator r2DTranslator;
private final IdentifierFactory idFactory;
private final InsertPipelineFactory insertPipelineFactory;
private final Cache<Integer, SqlTorodConnection> openConnections;
private final BackendService backend;
private final InternalTransactionManager internalTransactionManager;
private final TableRefFactory tableRefFactory;
@Inject
public SqlTorodServer(@TorodbIdleService ThreadFactory threadFactory,
D2RTranslatorFactory d2RTranslatorFactory,
R2DTranslator r2DTranslator, IdentifierFactory idFactory,
InsertPipelineFactory insertPipelineFactory,
BackendService backend, TableRefFactory tableRefFactory,
InternalTransactionManager internalTransactionManager) {
super(threadFactory);
this.d2RTranslatorFactory = d2RTranslatorFactory;
this.r2DTranslator = r2DTranslator;
this.idFactory = idFactory;
this.insertPipelineFactory = insertPipelineFactory;
this.backend = backend;
this.internalTransactionManager = internalTransactionManager;
this.tableRefFactory = tableRefFactory;
openConnections = CacheBuilder.newBuilder()
.weakValues()
.removalListener(this::onConnectionInvalidated)
.build();
}
@Override
public SqlTorodConnection openConnection() {
int connectionId = connectionIdCounter.incrementAndGet();
SqlTorodConnection connection = new SqlTorodConnection(this, connectionId);
openConnections.put(connectionId, connection);
return connection;
}
@Override
protected void startUp() throws Exception {
backend.awaitRunning();
}
@Override
protected void shutDown() throws Exception {
openConnections.invalidateAll();
}
private void onConnectionInvalidated(
RemovalNotification<Integer, SqlTorodConnection> notification) {
SqlTorodConnection value = notification.getValue();
if (value != null) {
value.close();
}
}
@Override
public void enableDataImportMode() {
ImmutableMetaSnapshot snapshot = internalTransactionManager.takeMetaSnapshot();
backend.enableDataImportMode(snapshot);
}
@Override
public void disableDataImportMode() {
ImmutableMetaSnapshot snapshot = internalTransactionManager.takeMetaSnapshot();
backend.disableDataImportMode(snapshot);
}
D2RTranslatorFactory getD2RTranslatorFactory() {
return d2RTranslatorFactory;
}
IdentifierFactory getIdentifierFactory() {
return idFactory;
}
InsertPipelineFactory getInsertPipelineFactory() {
return insertPipelineFactory;
}
BackendService getBackend() {
return backend;
}
InternalTransactionManager getInternalTransactionManager() {
return internalTransactionManager;
}
void onConnectionClosed(SqlTorodConnection connection) {
openConnections.invalidate(connection.getConnectionId());
}
TableRefFactory getTableRefFactory() {
return tableRefFactory;
}
R2DTranslator getR2DTranslator() {
return r2DTranslator;
}
}