io.etcd.jetcd.common.exception.EtcdExceptionFactory Maven / Gradle / Ivy

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/*
 * Copyright 2016-2020 The jetcd authors
 *
 * 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 io.etcd.jetcd.common.exception;

import io.grpc.Status;

import static com.google.common.base.Preconditions.checkNotNull;
import static io.grpc.Status.fromThrowable;

/**
 * A factory for creating instances of {@link EtcdException} and its subtypes.
 */
public final class EtcdExceptionFactory {

    public static EtcdException newEtcdException(ErrorCode code, String message) {
        return new EtcdException(code, message, null);
    }

    public static EtcdException newEtcdException(ErrorCode code, String message, Throwable cause) {
        return new EtcdException(code, message, cause);
    }

    public static CompactedException newCompactedException(long compactedRev) {
        return new CompactedException(ErrorCode.OUT_OF_RANGE, "etcdserver: mvcc: required revision has been compacted",
            compactedRev);
    }

    public static ClosedWatcherException newClosedWatcherException() {
        return new ClosedWatcherException();
    }

    public static ClosedClientException newClosedWatchClientException() {
        return new ClosedClientException("Watch Client has been closed");
    }

    public static ClosedClientException newClosedLeaseClientException() {
        return new ClosedClientException("Lease Client has been closed");
    }

    public static ClosedKeepAliveListenerException newClosedKeepAliveListenerException() {
        return new ClosedKeepAliveListenerException();
    }

    public static ClosedSnapshotException newClosedSnapshotException() {
        return new ClosedSnapshotException();
    }

    public static EtcdException handleInterrupt(InterruptedException e) {
        Thread.currentThread().interrupt();
        return newEtcdException(ErrorCode.CANCELLED, "Interrupted", e);
    }

    public static EtcdException toEtcdException(Throwable cause) {
        checkNotNull(cause, "cause can't be null");
        if (cause instanceof EtcdException) {
            return (EtcdException) cause;
        }

        return toEtcdException(fromThrowable(cause));
    }

    public static EtcdException toEtcdException(Status status) {
        checkNotNull(status, "status can't be null");
        return fromStatus(status);
    }

    private static EtcdException fromStatus(Status status) {
        return newEtcdException(ErrorCode.fromGrpcStatus(status), status.getDescription(), status.getCause());
    }
}