com.datastax.driver.core.exceptions.QueryConsistencyException Maven / Gradle / Ivy
/*
* Copyright DataStax, Inc.
*
* 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.datastax.driver.core.exceptions;
import com.datastax.driver.core.ConsistencyLevel;
import com.datastax.driver.core.EndPoint;
import java.net.InetAddress;
import java.net.InetSocketAddress;
/**
* A failure to reach the required consistency level during the execution of a query.
*
* Such an exception is returned when the query has been tried by Cassandra but cannot be
* achieved with the requested consistency level because either:
*
*
* - the coordinator did not receive enough replica responses within the rpc timeout set for
* Cassandra;
*
- some replicas replied with an error.
*
*
* .
*/
@SuppressWarnings("serial")
public abstract class QueryConsistencyException extends QueryExecutionException
implements CoordinatorException {
private final EndPoint endPoint;
private final ConsistencyLevel consistency;
private final int received;
private final int required;
protected QueryConsistencyException(
EndPoint endPoint, String msg, ConsistencyLevel consistency, int received, int required) {
super(msg);
this.endPoint = endPoint;
this.consistency = consistency;
this.received = received;
this.required = required;
}
protected QueryConsistencyException(
EndPoint endPoint,
String msg,
Throwable cause,
ConsistencyLevel consistency,
int received,
int required) {
super(msg, cause);
this.endPoint = endPoint;
this.consistency = consistency;
this.received = received;
this.required = required;
}
/**
* The consistency level of the operation that failed.
*
* @return the consistency level of the operation that failed.
*/
public ConsistencyLevel getConsistencyLevel() {
return consistency;
}
/**
* The number of replicas that had acknowledged/responded to the operation before it failed.
*
* @return the number of replica that had acknowledged/responded the operation before it failed.
*/
public int getReceivedAcknowledgements() {
return received;
}
/**
* The minimum number of replica acknowledgements/responses that were required to fulfill the
* operation.
*
* @return The minimum number of replica acknowledgements/response that were required to fulfill
* the operation.
*/
public int getRequiredAcknowledgements() {
return required;
}
/**
* {@inheritDoc}
*
* Note that this is the information of the host that coordinated the query, not the
* one that timed out.
*/
@Override
public EndPoint getEndPoint() {
return endPoint;
}
@Override
@Deprecated
public InetSocketAddress getAddress() {
return (endPoint == null) ? null : endPoint.resolve();
}
@Override
@Deprecated
public InetAddress getHost() {
return (endPoint == null) ? null : endPoint.resolve().getAddress();
}
}