FileSponge/src/main/lombok/org/warp/filesponge/api/FileSource.java

63 lines
2.0 KiB
Java

/*
* FileSponge
* Copyright (C) 2020 Andrea Cavalli
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package org.warp.filesponge.api;
import java.nio.ByteBuffer;
import org.jetbrains.annotations.NotNull;
import org.warp.filesponge.value.FileSourceAvailability;
import org.warp.filesponge.value.FileType;
import org.warp.filesponge.value.FileURI;
import reactor.core.publisher.Mono;
/**
* FileSource receives responses from a mirror
*/
public interface FileSource<FURI extends FileURI, FTYPE extends FileType> {
/**
* Called when the mirror is online
*/
Mono<Void> onAvailable();
/**
* Called when the mirror is unreachable
*/
Mono<Void> onUnavailable();
/**
* Called when the mirror notifies you that a new file exists. Cannot be empty.
*/
Mono<Boolean> onNewFile(@NotNull FURI fileURI, @NotNull FTYPE fileType);
/**
* Called when the mirror notifies you details about a file.
* <p>
* {@link FileSource#onNewFile(FURI, FTYPE)} must have been already called
*/
Mono<Void> onFile(@NotNull FURI fileURI, @NotNull FileSourceAvailability fileAvailability, long totalSize);
/**
* Called when the mirror notifies you the bytes of a part of a file.
* <p>
* {@link FileSource#onNewFile(FURI, FTYPE)} and {@link FileSource#onFile(FURI, FileSourceAvailability, long)} must
* have been already called
*/
Mono<Void> onFilePiece(@NotNull FURI fileURI, long offset, long size, @NotNull ByteBuffer piece);
}