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/**
* 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.pulsar.client.api.transaction;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import org.apache.pulsar.common.classification.InterfaceAudience;
import org.apache.pulsar.common.classification.InterfaceStability;
/**
* Exceptions for transaction coordinator client.
*/
@InterfaceAudience.Private
@InterfaceStability.Evolving
public class TransactionCoordinatorClientException extends IOException {
public TransactionCoordinatorClientException(Throwable t) {
super(t);
}
public TransactionCoordinatorClientException(String message) {
super(message);
}
/**
* Thrown when transaction coordinator with unexpected state.
*/
public static class CoordinatorClientStateException extends TransactionCoordinatorClientException {
public CoordinatorClientStateException() {
super("Unexpected state for transaction metadata client.");
}
public CoordinatorClientStateException(String message) {
super(message);
}
}
/**
* Thrown when transaction coordinator not found in broker side.
*/
public static class CoordinatorNotFoundException extends TransactionCoordinatorClientException {
public CoordinatorNotFoundException(String message) {
super(message);
}
}
/**
* Thrown when transaction switch to a invalid status.
*/
public static class InvalidTxnStatusException extends TransactionCoordinatorClientException {
public InvalidTxnStatusException(String message) {
super(message);
}
public InvalidTxnStatusException(String txnId, String actualState, String expectState) {
super("[" + txnId + "] with unexpected state : "
+ actualState + ", expect " + expectState + " state!");
}
}
/**
* Thrown when transaction not found in transaction coordinator.
*/
public static class TransactionNotFoundException extends TransactionCoordinatorClientException {
public TransactionNotFoundException(String message) {
super(message);
}
}
/**
* Thrown when transaction meta store handler not exists.
*/
public static class MetaStoreHandlerNotExistsException extends TransactionCoordinatorClientException {
public MetaStoreHandlerNotExistsException(long tcId) {
super("Transaction meta store handler for transaction meta store {} not exists.");
}
public MetaStoreHandlerNotExistsException(String message) {
super(message);
}
}
/**
* Thrown when transaction meta was timeout.
*/
public static class TransactionTimeotException extends TransactionCoordinatorClientException {
public TransactionTimeotException(Throwable t) {
super(t);
}
public TransactionTimeotException(String transactionId) {
super("The transaction " + transactionId + " is timeout.");
}
}
/**
* Thrown when send request to transaction meta store but the transaction meta store handler not ready.
*/
public static class MetaStoreHandlerNotReadyException extends TransactionCoordinatorClientException {
public MetaStoreHandlerNotReadyException(long tcId) {
super("Transaction meta store handler for transaction meta store {} not ready now.");
}
public MetaStoreHandlerNotReadyException(String message) {
super(message);
}
}
public static TransactionCoordinatorClientException unwrap(Throwable t) {
if (t instanceof TransactionCoordinatorClientException) {
return (TransactionCoordinatorClientException) t;
} else if (t instanceof RuntimeException) {
throw (RuntimeException) t;
} else if (t instanceof InterruptedException) {
Thread.currentThread().interrupt();
return new TransactionCoordinatorClientException(t);
} else if (!(t instanceof ExecutionException)) {
// Generic exception
return new TransactionCoordinatorClientException(t);
}
Throwable cause = t.getCause();
String msg = cause.getMessage();
if (cause instanceof CoordinatorNotFoundException) {
return new CoordinatorNotFoundException(msg);
} else if (cause instanceof InvalidTxnStatusException) {
return new InvalidTxnStatusException(msg);
} else {
return new TransactionCoordinatorClientException(t);
}
}
}