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Awake FILE is a secure Open Source framework that allows to program very easily file uploads/downloads and RPC through http. File transfers include
powerful features like file chunking and automatic recovery mechanism.
Security has been taken into account from the design: server side allows
to specify strong security rules in order to protect the files and to secure the RPC calls.
package org.awakefw.file.api.util;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* Aas it says, class to split in chunks names the filename.
*
* @author Nicolas de Pomereu
*
*/
public class FilenameSplitter {
private List fileParts = new ArrayList();
/**
* Constructor
*/
public FilenameSplitter() {
}
/**
* Splits the designated file name into chunk file names
*
* @param file
* the file to split
* @param splitlen
* the length in bytes of each split
* @return true if the operation is completed, flase if interrupted by user with AwakeProgressManager.isCancelled()
* @throws IOException
*/
public void split(File file, String remoteFile, long splitlen) throws IOException {
long total = 0;
int countFile = 1;
while(true) {
String remoteFilePart = getFilePart(remoteFile, countFile);
//debug("remoteFilePart: " + remoteFilePart);
countFile++;
fileParts.add(remoteFilePart);
total+=splitlen;
if (total> file.length()) {
break;
}
}
}
/**
* @return the fileParts
*/
public List getFileParts() {
return fileParts;
}
/**
* Return the file part name from the file
*
* @param filePath
* the original file path
* @param countFile
* the number of the file
* @return the full file part in form /dir/filename.1.awake.sp, /dir/filename.2.awake.sp, etc...
*/
private String getFilePart(String filePath, int countFile) {
return filePath + "." + countFile + ".awake.chunk";
}
}
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