org.apache.hadoop.hdfs.server.datanode.ErrorReportAction Maven / Gradle / Ivy
/**
* 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.hadoop.hdfs.server.datanode;
import java.io.IOException;
import org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolClientSideTranslatorPB;
import org.apache.hadoop.hdfs.server.protocol.DatanodeRegistration;
import org.apache.hadoop.ipc.RemoteException;
/**
* A ErrorReportAction is an instruction issued by BPOfferService to
* BPServiceActor about a particular block encapsulated in errorMessage.
*/
public class ErrorReportAction implements BPServiceActorAction {
final int errorCode;
final String errorMessage;
public ErrorReportAction(int errorCode, String errorMessage) {
this.errorCode = errorCode;
this.errorMessage = errorMessage;
}
@Override
public void reportTo(DatanodeProtocolClientSideTranslatorPB bpNamenode,
DatanodeRegistration bpRegistration) throws BPServiceActorActionException {
try {
bpNamenode.errorReport(bpRegistration, errorCode, errorMessage);
} catch (RemoteException re) {
DataNode.LOG.info("trySendErrorReport encountered RemoteException "
+ "errorMessage: " + errorMessage + " errorCode: " + errorCode, re);
} catch(IOException e) {
throw new BPServiceActorActionException("Error reporting "
+ "an error to namenode.", e);
}
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + errorCode;
result = prime * result
+ ((errorMessage == null) ? 0 : errorMessage.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null || !(obj instanceof ErrorReportAction)) {
return false;
}
ErrorReportAction other = (ErrorReportAction) obj;
if (errorCode != other.errorCode) {
return false;
}
if (errorMessage == null) {
if (other.errorMessage != null) {
return false;
}
} else if (!errorMessage.equals(other.errorMessage)) {
return false;
}
return true;
}
}