LoaderErrorThrower.java
/*
* Copyright (C) 2016 The Android Open Source Project
*
* 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 androidx.media3.exoplayer.upstream;
import androidx.media3.common.util.UnstableApi;
import androidx.media3.exoplayer.upstream.Loader.Loadable;
import java.io.IOException;
/** Conditionally throws errors affecting a {@link Loader}. */
@UnstableApi
public interface LoaderErrorThrower {
/**
* Throws a fatal error, or a non-fatal error if loading is currently backed off and the current
* {@link Loadable} has incurred a number of errors greater than the {@link Loader}s default
* minimum number of retries. Else does nothing.
*
* @throws IOException The error.
*/
void maybeThrowError() throws IOException;
/**
* Throws a fatal error, or a non-fatal error if loading is currently backed off and the current
* {@link Loadable} has incurred a number of errors greater than the specified minimum number of
* retries. Else does nothing.
*
* @param minRetryCount A minimum retry count that must be exceeded for a non-fatal error to be
* thrown. Should be non-negative.
* @throws IOException The error.
*/
void maybeThrowError(int minRetryCount) throws IOException;
/** A {@link LoaderErrorThrower} that never throws. */
final class Dummy implements LoaderErrorThrower {
@Override
public void maybeThrowError() {
// Do nothing.
}
@Override
public void maybeThrowError(int minRetryCount) {
// Do nothing.
}
}
}