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package com.luhuiguo.fastdfs.proto.storage;

import com.luhuiguo.fastdfs.proto.AbstractFdfsCommand;
import com.luhuiguo.fastdfs.proto.storage.internal.StorageDownloadRequest;
import com.luhuiguo.fastdfs.proto.storage.internal.StorageDownloadResponse;

/**
 * 文件下载命令
 * 
 * @author tobato
 * @param 
 *
 */
public class StorageDownloadCommand extends AbstractFdfsCommand {

    /**
     * 下载文件
     * 
     * @param groupName
     * @param path
     * @param fileOffset
     * @param fileSize
     */
    public StorageDownloadCommand(String groupName, String path, long fileOffset, long fileSize,
            DownloadCallback callback) {
        super();
        this.request = new StorageDownloadRequest(groupName, path, fileOffset, fileSize);
        // 输出响应
        this.response = new StorageDownloadResponse(callback);
    }

    /**
     * 下载文件
     * 
     * @param groupName
     * @param path
     */
    public StorageDownloadCommand(String groupName, String path, DownloadCallback callback) {
        super();
        this.request = new StorageDownloadRequest(groupName, path, 0, 0);
        // 输出响应
        this.response = new StorageDownloadResponse(callback);
    }
}