All Downloads are FREE. Search and download functionalities are using the official Maven repository.
Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance.
Project price only 1 $
You can buy this project and download/modify it how often you want.
com.datastax.dse.driver.internal.core.cql.DseConversions Maven / Gradle / Ivy
/*
* Copyright DataStax, Inc.
*
* This software can be used solely with DataStax Enterprise. Please consult the license at
* http://www.datastax.com/terms/datastax-dse-driver-license-terms
*/
package com.datastax.dse.driver.internal.core.cql;
import com.datastax.dse.driver.api.core.config.DseDriverOption;
import com.datastax.dse.driver.api.core.servererrors.UnfitClientException;
import com.datastax.dse.protocol.internal.DseProtocolConstants;
import com.datastax.dse.protocol.internal.request.query.ContinuousPagingOptions;
import com.datastax.dse.protocol.internal.request.query.DseQueryOptions;
import com.datastax.oss.driver.api.core.ConsistencyLevel;
import com.datastax.oss.driver.api.core.CqlIdentifier;
import com.datastax.oss.driver.api.core.ProtocolVersion;
import com.datastax.oss.driver.api.core.config.DefaultDriverOption;
import com.datastax.oss.driver.api.core.config.DriverExecutionProfile;
import com.datastax.oss.driver.api.core.cql.BoundStatement;
import com.datastax.oss.driver.api.core.cql.PreparedStatement;
import com.datastax.oss.driver.api.core.cql.SimpleStatement;
import com.datastax.oss.driver.api.core.cql.Statement;
import com.datastax.oss.driver.api.core.metadata.Node;
import com.datastax.oss.driver.api.core.servererrors.CoordinatorException;
import com.datastax.oss.driver.api.core.type.codec.registry.CodecRegistry;
import com.datastax.oss.driver.internal.core.ConsistencyLevelRegistry;
import com.datastax.oss.driver.internal.core.DefaultProtocolFeature;
import com.datastax.oss.driver.internal.core.ProtocolVersionRegistry;
import com.datastax.oss.driver.internal.core.context.InternalDriverContext;
import com.datastax.oss.driver.internal.core.cql.Conversions;
import com.datastax.oss.protocol.internal.Message;
import com.datastax.oss.protocol.internal.request.Execute;
import com.datastax.oss.protocol.internal.request.Query;
import com.datastax.oss.protocol.internal.response.Error;
import com.datastax.oss.protocol.internal.util.Bytes;
import java.nio.ByteBuffer;
import java.util.Collections;
import java.util.List;
import java.util.Map;
public class DseConversions {
public static Message toContinuousPagingMessage(
Statement statement, DriverExecutionProfile config, InternalDriverContext context) {
ConsistencyLevelRegistry consistencyLevelRegistry = context.getConsistencyLevelRegistry();
ConsistencyLevel consistency = statement.getConsistencyLevel();
int consistencyCode =
(consistency == null)
? consistencyLevelRegistry.nameToCode(
config.getString(DefaultDriverOption.REQUEST_CONSISTENCY))
: consistency.getProtocolCode();
int pageSize = config.getInt(DseDriverOption.CONTINUOUS_PAGING_PAGE_SIZE);
boolean pageSizeInBytes = config.getBoolean(DseDriverOption.CONTINUOUS_PAGING_PAGE_SIZE_BYTES);
int maxPages = config.getInt(DseDriverOption.CONTINUOUS_PAGING_MAX_PAGES);
int maxPagesPerSecond = config.getInt(DseDriverOption.CONTINUOUS_PAGING_MAX_PAGES_PER_SECOND);
int maxEnqueuedPages = config.getInt(DseDriverOption.CONTINUOUS_PAGING_MAX_ENQUEUED_PAGES);
ContinuousPagingOptions options =
new ContinuousPagingOptions(maxPages, maxPagesPerSecond, maxEnqueuedPages);
ConsistencyLevel serialConsistency = statement.getSerialConsistencyLevel();
int serialConsistencyCode =
(serialConsistency == null)
? consistencyLevelRegistry.nameToCode(
config.getString(DefaultDriverOption.REQUEST_SERIAL_CONSISTENCY))
: serialConsistency.getProtocolCode();
long timestamp = statement.getQueryTimestamp();
if (timestamp == Long.MIN_VALUE) {
timestamp = context.getTimestampGenerator().next();
}
CodecRegistry codecRegistry = context.getCodecRegistry();
ProtocolVersion protocolVersion = context.getProtocolVersion();
ProtocolVersionRegistry protocolVersionRegistry = context.getProtocolVersionRegistry();
CqlIdentifier keyspace = statement.getKeyspace();
if (statement instanceof SimpleStatement) {
SimpleStatement simpleStatement = (SimpleStatement) statement;
List positionalValues = simpleStatement.getPositionalValues();
Map namedValues = simpleStatement.getNamedValues();
if (!positionalValues.isEmpty() && !namedValues.isEmpty()) {
throw new IllegalArgumentException(
"Can't have both positional and named values in a statement.");
}
if (keyspace != null
&& !protocolVersionRegistry.supports(
protocolVersion, DefaultProtocolFeature.PER_REQUEST_KEYSPACE)) {
throw new IllegalArgumentException(
"Can't use per-request keyspace with protocol " + protocolVersion);
}
DseQueryOptions queryOptions =
new DseQueryOptions(
consistencyCode,
Conversions.encode(positionalValues, codecRegistry, protocolVersion),
Conversions.encode(namedValues, codecRegistry, protocolVersion),
false,
pageSize,
statement.getPagingState(),
serialConsistencyCode,
timestamp,
(keyspace == null) ? null : keyspace.asInternal(),
pageSizeInBytes,
options);
return new Query(simpleStatement.getQuery(), queryOptions);
} else if (statement instanceof BoundStatement) {
BoundStatement boundStatement = (BoundStatement) statement;
if (!protocolVersionRegistry.supports(
protocolVersion, DefaultProtocolFeature.UNSET_BOUND_VALUES)) {
Conversions.ensureAllSet(boundStatement);
}
boolean skipMetadata =
boundStatement.getPreparedStatement().getResultSetDefinitions().size() > 0;
DseQueryOptions queryOptions =
new DseQueryOptions(
consistencyCode,
boundStatement.getValues(),
Collections.emptyMap(),
skipMetadata,
pageSize,
statement.getPagingState(),
serialConsistencyCode,
timestamp,
null,
pageSizeInBytes,
options);
PreparedStatement preparedStatement = boundStatement.getPreparedStatement();
ByteBuffer id = preparedStatement.getId();
ByteBuffer resultMetadataId = preparedStatement.getResultMetadataId();
return new Execute(
Bytes.getArray(id),
(resultMetadataId == null) ? null : Bytes.getArray(resultMetadataId),
queryOptions);
} else {
throw new IllegalArgumentException(
"Unsupported statement type: " + statement.getClass().getName());
}
}
public static CoordinatorException toThrowable(
Node node, Error errorMessage, InternalDriverContext context) {
switch (errorMessage.code) {
case DseProtocolConstants.ErrorCode.CLIENT_WRITE_FAILURE:
return new UnfitClientException(node, errorMessage.message);
default:
return Conversions.toThrowable(node, errorMessage, context);
}
}
}
