import org.csource.fastdfs.UploadCallback; //导入依赖的package包/类
/**
* upload file to storage server (by callback)
* @param group_name the group name to upload file to, can be empty
* @param file_size the file size
* @param callback the write data callback object
* @param file_ext_name file ext name, do not include dot(.)
*	@param meta_list meta info array
* @return  2 elements string array if success:<br>
*           <ul><li>results[0]: the group name to store the file</li></ul>
*           <ul><li>results[1]: the new created filename</li></ul>
*         return null if fail
*/
public String[] upload_file(String group_name, long file_size, UploadCallback callback, 
       String file_ext_name, NameValuePair[] meta_list) throws IOException, MyException
{
	StorageClient storageClient = new StorageClient(trackerServer, storageServer);
	return storageClient.upload_file(group_name, file_size, callback, file_ext_name, meta_list);
}
 

import org.csource.fastdfs.UploadCallback; //导入依赖的package包/类
/**
* upload appender file to storage server (by callback)
* @param group_name the group name to upload file to, can be empty
* @param file_size the file size
* @param callback the write data callback object
* @param file_ext_name file ext name, do not include dot(.)
*	@param meta_list meta info array
* @return  2 elements string array if success:<br>
*           <ul><li>results[0]: the group name to store the file</li></ul>
*           <ul><li>results[1]: the new created filename</li></ul>
*         return null if fail
*/
public String[] upload_appender_file(String group_name, long file_size, UploadCallback callback, 
       String file_ext_name, NameValuePair[] meta_list) throws IOException, MyException
{
	StorageClient storageClient = new StorageClient(trackerServer, storageServer);
	return storageClient.upload_appender_file(group_name, file_size, callback, 
		       file_ext_name, meta_list);
}
 

import org.csource.fastdfs.UploadCallback; //导入依赖的package包/类
/**
* append file to storage server (by callback)
* @param group_name the group name to append file to
* @param appender_filename the appender filename
* @param file_size the file size
* @param callback the write data callback object
* @return 0 for success, != 0 for error (error no)
*/
public int append_file(String group_name, String appender_filename, 
       long file_size, UploadCallback callback) throws IOException, MyException
{
	StorageClient storageClient = new StorageClient(trackerServer, storageServer);
	return storageClient.append_file(group_name, appender_filename, 
		       file_size, callback);
}
 

import org.csource.fastdfs.UploadCallback; //导入依赖的package包/类
/**
* modify appender file to storage server (by callback)
* @param group_name the group name to modify file to
* @param appender_filename the appender filename
* @param file_offset the offset of appender file
* @param modify_size the modify size
* @param callback the write data callback object
* @return 0 for success, != 0 for error (error no)
*/
public int modify_file(String group_name, String appender_filename, 
       long file_offset, long modify_size, UploadCallback callback) throws IOException, MyException
{
	StorageClient storageClient = new StorageClient(trackerServer, storageServer);
	return storageClient.modify_file(group_name, appender_filename, 
		       file_offset, modify_size, callback);
}