/**
* Gets the UiFileInfo object that represents the fileId, or the filePath if fileId is -1.
*
* @param tachyonClient the TachyonFS client.
* @param fileId the file id of the file.
* @param filePath the path of the file. valid iff fileId is -1.
* @return the UiFileInfo object of the file.
* @throws FileDoesNotExistException
* @throws IOException
*/
private UiFileInfo getUiFileInfo(TachyonFS tachyonClient, int fileId, TachyonURI filePath)
throws FileDoesNotExistException, NotFoundException, IOException {
ClientFileInfo fileInfo = tachyonClient.getFileStatus(fileId, filePath, true);
if (fileInfo == null) {
throw new FileDoesNotExistException(
fileId != -1 ? Integer.toString(fileId) : filePath.toString());
}
UiFileInfo uiFileInfo = new UiFileInfo(fileInfo);
boolean blockExistOnWorker = false;
for (long blockId : fileInfo.getBlockIds()) {
if (mBlockDataManager.hasBlockMeta(blockId)) {
blockExistOnWorker = true;
BlockMeta blockMeta = mBlockDataManager.getVolatileBlockMeta(blockId);
long blockSize = blockMeta.getBlockSize();
StorageLevelAlias storageLevelAlias =
StorageDirId.getStorageLevelAlias(blockMeta.getParentDir().getStorageDirId());
// The block last access time is not available. Use -1 for now.
uiFileInfo.addBlock(storageLevelAlias, blockId, blockSize, -1);
}
}
if (!blockExistOnWorker) {
throw new FileDoesNotExistException(
fileId != -1 ? Integer.toString(fileId) : filePath.toString());
}
return uiFileInfo;
}
/**
* Populates attribute fields with data from the MasterInfo associated with this servlet. Errors
* will be displayed in an error field. Debugging can be enabled to display additional data. Will
* eventually redirect the request to a jsp.
*
* @param request The HttpServletRequest object
* @param response The HttpServletResponse object
* @throws ServletException
* @throws IOException
* @throws UnknownHostException
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, UnknownHostException {
request.setAttribute("debug", Constants.DEBUG);
request.setAttribute("masterNodeAddress", mMasterInfo.getMasterAddress().toString());
request.setAttribute("invalidPathError", "");
List<ClientFileInfo> filesInfo = null;
String currentPath = request.getParameter("path");
if (currentPath.isEmpty()) {
currentPath = "/";
}
request.setAttribute("currentPath", currentPath);
try {
UiFileInfo currentFileInfo = new UiFileInfo(mMasterInfo.getFileInfo(currentPath));
request.setAttribute("currentDirectory", currentFileInfo);
if (!currentFileInfo.getIsDirectory()) {
displayFile(currentFileInfo.getAbsolutePath(), request);
getServletContext().getRequestDispatcher("/viewFile.jsp").forward(request, response);
return;
}
CommonUtils.validatePath(currentPath);
setPathDirectories(currentPath, request);
filesInfo = mMasterInfo.getFilesInfo(currentPath);
} catch (FileDoesNotExistException fdne) {
request.setAttribute("invalidPathError", "Error: Invalid Path " + fdne.getMessage());
getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
return;
} catch (InvalidPathException ipe) {
request.setAttribute("invalidPathError", "Error: Invalid Path " + ipe.getLocalizedMessage());
getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
return;
}
List<UiFileInfo> fileInfos = new ArrayList<UiFileInfo>(filesInfo.size());
for (ClientFileInfo fileInfo : filesInfo) {
UiFileInfo toAdd = new UiFileInfo(fileInfo);
try {
if (!toAdd.getIsDirectory()) {
toAdd.setFileLocations(mMasterInfo.getFileLocations(toAdd.getId()));
}
} catch (FileDoesNotExistException fdne) {
request.setAttribute("invalidPathError", "Error: Invalid Path " + fdne.getMessage());
getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
return;
}
fileInfos.add(toAdd);
}
Collections.sort(fileInfos);
request.setAttribute("fileInfos", fileInfos);
getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
}
/**
* Populates attributes before redirecting to a jsp.
*
* @param request The HttpServletRequest object
* @param response The HttpServletReponse object
* @throws ServletException
* @throws IOException
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setAttribute("fatalError", "");
TachyonFS tachyonClient = TachyonFS.get(mTachyonConf);
String filePath = request.getParameter("path");
if (!(filePath == null || filePath.isEmpty())) {
// Display file block info
try {
UiFileInfo uiFileInfo = getUiFileInfo(tachyonClient, new TachyonURI(filePath));
request.setAttribute("fileBlocksOnTier", uiFileInfo.getBlocksOnTier());
request.setAttribute("blockSizeByte", uiFileInfo.getBlockSizeBytes());
request.setAttribute("path", filePath);
getServletContext()
.getRequestDispatcher("/worker/viewFileBlocks.jsp")
.forward(request, response);
return;
} catch (FileDoesNotExistException fdne) {
request.setAttribute("fatalError", "Error: Invalid Path " + fdne.getMessage());
getServletContext()
.getRequestDispatcher("/worker/blockInfo.jsp")
.forward(request, response);
return;
} catch (IOException ie) {
request.setAttribute(
"invalidPathError", "Error: File " + filePath + " is not available " + ie.getMessage());
getServletContext()
.getRequestDispatcher("/worker/blockInfo.jsp")
.forward(request, response);
return;
} catch (NotFoundException nfe) {
request.setAttribute("fatalError", "Error: block not found. " + nfe.getMessage());
getServletContext()
.getRequestDispatcher("/worker/blockInfo.jsp")
.forward(request, response);
return;
}
}
List<Integer> fileIds = getSortedFileIds();
request.setAttribute("nTotalFile", fileIds.size());
// URL can not determine offset and limit, let javascript in jsp determine and redirect
if (request.getParameter("offset") == null && request.getParameter("limit") == null) {
getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
return;
}
try {
int offset = Integer.parseInt(request.getParameter("offset"));
int limit = Integer.parseInt(request.getParameter("limit"));
List<Integer> subFileIds = fileIds.subList(offset, offset + limit);
List<UiFileInfo> uiFileInfos = new ArrayList<UiFileInfo>(subFileIds.size());
for (int fileId : subFileIds) {
uiFileInfos.add(getUiFileInfo(tachyonClient, fileId));
}
request.setAttribute("fileInfos", uiFileInfos);
} catch (FileDoesNotExistException fdne) {
request.setAttribute("fatalError", "Error: Invalid FileId " + fdne.getMessage());
getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
return;
} catch (NumberFormatException nfe) {
request.setAttribute(
"fatalError", "Error: offset or limit parse error, " + nfe.getLocalizedMessage());
getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
return;
} catch (IndexOutOfBoundsException iobe) {
request.setAttribute(
"fatalError",
"Error: offset or offset + limit is out of bound, " + iobe.getLocalizedMessage());
getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
return;
} catch (IllegalArgumentException iae) {
request.setAttribute("fatalError", iae.getLocalizedMessage());
getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
return;
} catch (NotFoundException nfe) {
request.setAttribute("fatalError", nfe.getLocalizedMessage());
getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
return;
}
getServletContext().getRequestDispatcher("/worker/blockInfo.jsp").forward(request, response);
}
/**
* Populates attribute fields with data from the MasterInfo associated with this servlet. Errors
* will be displayed in an error field. Debugging can be enabled to display additional data. Will
* eventually redirect the request to a jsp.
*
* @param request The HttpServletRequest object
* @param response The HttpServletResponse object
* @throws ServletException
* @throws IOException
* @throws UnknownHostException
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, UnknownHostException {
request.setAttribute("debug", Constants.DEBUG);
request.setAttribute("masterNodeAddress", mMasterInfo.getMasterAddress().toString());
request.setAttribute("invalidPathError", "");
List<ClientFileInfo> filesInfo = null;
String currentPath = request.getParameter("path");
if (currentPath == null || currentPath.isEmpty()) {
currentPath = Constants.PATH_SEPARATOR;
}
request.setAttribute("currentPath", currentPath);
request.setAttribute("viewingOffset", 0);
try {
ClientFileInfo clientFileInfo = mMasterInfo.getClientFileInfo(currentPath);
UiFileInfo currentFileInfo = new UiFileInfo(clientFileInfo);
request.setAttribute("currentDirectory", currentFileInfo);
request.setAttribute("blockSizeByte", currentFileInfo.getBlockSizeBytes());
if (!currentFileInfo.getIsDirectory()) {
String tmpParam = request.getParameter("offset");
long offset = 0;
try {
if (tmpParam != null) {
offset = Long.valueOf(tmpParam);
}
} catch (NumberFormatException nfe) {
offset = 0;
}
if (offset < 0) {
offset = 0;
} else if (offset > clientFileInfo.getLength()) {
offset = clientFileInfo.getLength();
}
displayFile(currentFileInfo.getAbsolutePath(), request, offset);
request.setAttribute("viewingOffset", offset);
getServletContext().getRequestDispatcher("/viewFile.jsp").forward(request, response);
return;
}
CommonUtils.validatePath(currentPath);
setPathDirectories(currentPath, request);
filesInfo = mMasterInfo.getFilesInfo(currentPath);
} catch (FileDoesNotExistException fdne) {
request.setAttribute("invalidPathError", "Error: Invalid Path " + fdne.getMessage());
getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
return;
} catch (InvalidPathException ipe) {
request.setAttribute("invalidPathError", "Error: Invalid Path " + ipe.getLocalizedMessage());
getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
return;
} catch (IOException ie) {
request.setAttribute(
"invalidPathError",
"Error: File " + currentPath + " is not available " + ie.getMessage());
getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
return;
}
List<UiFileInfo> fileInfos = new ArrayList<UiFileInfo>(filesInfo.size());
for (ClientFileInfo fileInfo : filesInfo) {
UiFileInfo toAdd = new UiFileInfo(fileInfo);
try {
if (!toAdd.getIsDirectory() && fileInfo.getLength() > 0) {
toAdd.setFileLocations(mMasterInfo.getFileBlocks(toAdd.getId()).get(0).getLocations());
}
} catch (FileDoesNotExistException fdne) {
request.setAttribute("invalidPathError", "Error: Invalid Path " + fdne.getMessage());
getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
return;
}
fileInfos.add(toAdd);
}
Collections.sort(fileInfos);
request.setAttribute("fileInfos", fileInfos);
getServletContext().getRequestDispatcher("/browse.jsp").forward(request, response);
}
@Override
public int compareTo(UiFileInfo o) {
return ABSOLUATE_PATH.compareTo(o.getAbsolutePath());
}