/*
* Licensed 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 com.facebook.presto.plugin.memory;
import com.facebook.presto.spi.NodeManager;
import com.facebook.presto.spi.type.Type;
import com.facebook.presto.spi.type.TypeManager;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.FromStringDeserializer;
import com.google.inject.Binder;
import com.google.inject.Module;
import com.google.inject.Scopes;
import javax.inject.Inject;
import static com.facebook.presto.spi.type.TypeSignature.parseTypeSignature;
import static com.google.common.base.Preconditions.checkArgument;
import static io.airlift.configuration.ConfigBinder.configBinder;
import static java.util.Objects.requireNonNull;
public class MemoryModule
implements Module
{
private final String connectorId;
private final TypeManager typeManager;
private final NodeManager nodeManager;
public MemoryModule(String connectorId, TypeManager typeManager, NodeManager nodeManager)
{
this.connectorId = requireNonNull(connectorId, "connector id is null");
this.typeManager = requireNonNull(typeManager, "typeManager is null");
this.nodeManager = requireNonNull(nodeManager, "nodeManager is null");
}
@Override
public void configure(Binder binder)
{
binder.bind(TypeManager.class).toInstance(typeManager);
binder.bind(NodeManager.class).toInstance(nodeManager);
binder.bind(MemoryConnector.class).in(Scopes.SINGLETON);
binder.bind(MemoryConnectorId.class).toInstance(new MemoryConnectorId(connectorId));
binder.bind(MemoryMetadata.class).in(Scopes.SINGLETON);
binder.bind(MemorySplitManager.class).in(Scopes.SINGLETON);
binder.bind(MemoryPagesStore.class).in(Scopes.SINGLETON);
binder.bind(MemoryPageSourceProvider.class).in(Scopes.SINGLETON);
binder.bind(MemoryPageSinkProvider.class).in(Scopes.SINGLETON);
configBinder(binder).bindConfig(MemoryConfig.class);
}
public static final class TypeDeserializer
extends FromStringDeserializer<Type>
{
private final TypeManager typeManager;
@Inject
public TypeDeserializer(TypeManager typeManager)
{
super(Type.class);
this.typeManager = requireNonNull(typeManager, "typeManager is null");
}
@Override
protected Type _deserialize(String value, DeserializationContext context)
{
Type type = typeManager.getType(parseTypeSignature(value));
checkArgument(type != null, "Unknown type %s", value);
return type;
}
}
}