public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
String fileName = null;
long startTime, endTime;
String fileContentToDisplay = req.getParameter("FileToDisplay");
res.getWriter().println("File conetent to be displayed : " + fileContentToDisplay);
startTime = System.currentTimeMillis();
// Find if the file is in memcache. If present there is no need to go to blobstore to get the
// data
MemcacheService mService = MemcacheServiceFactory.getMemcacheService();
AppEngineFile readableFile;
readableFile = (AppEngineFile) mService.get(fileName);
if (readableFile != null) {
FileService fService = FileServiceFactory.getFileService();
res.getWriter().println("File " + fileName + " is present in cache");
FileReadChannel readChannel = fService.openReadChannel(readableFile, false);
BufferedReader reader = new BufferedReader(Channels.newReader(readChannel, "UTF8"));
String line = null;
res.getWriter().println("Contents of the file: ");
while ((line = reader.readLine()) != null) {
res.getWriter().println(line + "<br>");
}
readChannel.close();
} else // Search for the file in blob
{
List<BlobInfo> blobToRead = new LinkedList<BlobInfo>();
Iterator<BlobInfo> blobIterator = new BlobInfoFactory().queryBlobInfos();
while (blobIterator.hasNext()) blobToRead.add(blobIterator.next());
res.setContentType("text/plain");
Boolean filePresent = false;
int i;
for (i = 0; i < blobToRead.size(); i++) {
fileName = blobToRead.get(i).getFilename();
if (fileName.equals(fileContentToDisplay)) {
FileService fService = FileServiceFactory.getFileService();
res.getWriter().println("File " + fileName + " is present in the blob store");
readableFile = fService.getBlobFile(blobToRead.get(i).getBlobKey());
FileReadChannel readChannel = fService.openReadChannel(readableFile, false);
BufferedReader reader = new BufferedReader(Channels.newReader(readChannel, "UTF8"));
String line = null;
res.getWriter().println("printing the contents : ");
while ((line = reader.readLine()) != null) {
res.getWriter().println(line);
}
readChannel.close();
} else {
res.getWriter().println("File " + fileName + " is not present in the blob store");
}
}
}
endTime = System.currentTimeMillis();
res.getWriter().println("Time taken for the operation is " + (endTime - startTime) + " ms");
}
@InSequence(10)
@Test
@OperateOnDeployment("dep1")
public void insertIntoBlobstoreOnDep1() throws Exception {
BlobstoreService service = BlobstoreServiceFactory.getBlobstoreService();
FileService fileService = FileServiceFactory.getFileService();
AppEngineFile file = fileService.createNewBlobFile("text/plain", "uploadedText.txt");
FileWriteChannel channel = fileService.openWriteChannel(file, true);
try {
channel.write(ByteBuffer.wrap(TEXT.getBytes()));
} finally {
channel.closeFinally();
}
waitForSync();
BlobKey blobKey = fileService.getBlobKey(file);
System.out.println("Blob key: " + blobKey);
byte[] bytes = service.fetchData(blobKey, 0, Long.MAX_VALUE);
Assert.assertEquals(TEXT, new String(bytes));
DatastoreService ds = DatastoreServiceFactory.getDatastoreService();
Entity dsBK = new Entity("blobTestId", 1);
dsBK.setProperty("blogId", blobKey.getKeyString());
ds.put(dsBK);
waitForSync();
}
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
int index;
DatastoreService ds;
MemcacheService ms;
BlobstoreService bs;
URLFetchService us;
FileService fs;
Map<String, List<BlobKey>> blobMap;
BlobKey blobKey;
BlobInfoFactory blobInfoFactory;
BlobInfo blobInfo;
int postCount;
int postIndex;
String postType;
String postText;
String postDelpw;
String postShowgallery;
DataObj dataObj;
String filelink;
String picUrl;
HTTPResponse picRes;
List<HTTPHeader> headerList;
String picMime;
String[] fileNamePart;
AppEngineFile picFile;
FileWriteChannel writeChannel;
PostObj postObj;
List<PostObj> postObjList;
String linkID;
resp.setCharacterEncoding("UTF-8");
resp.setContentType("text/plain");
try {
ds = DatastoreServiceFactory.getDatastoreService();
ms = MemcacheServiceFactory.getMemcacheService();
bs = BlobstoreServiceFactory.getBlobstoreService();
us = URLFetchServiceFactory.getURLFetchService();
fs = FileServiceFactory.getFileService();
blobInfoFactory = new BlobInfoFactory(ds);
blobMap = bs.getUploads(req);
postCount = Integer.valueOf(req.getParameter("input_post_count"));
postObjList = new ArrayList<PostObj>();
for (postIndex = 0; postIndex < postCount; postIndex++) {
try {
postType = req.getParameter("input_post_type_" + postIndex);
if (postType == null) {
continue;
}
postText = req.getParameter("input_post_text_" + postIndex);
postDelpw = req.getParameter("input_post_delpw_" + postIndex);
postShowgallery = req.getParameter("input_post_showgallery_" + postIndex);
if (postShowgallery == null) {
postShowgallery = "";
}
if (postType.equals("file") == true) {
blobKey = blobMap.get("input_post_file_" + postIndex).get(0);
if (blobKey == null) {
throw new Exception();
}
dataObj = new DataObj();
dataObj.fileid = createUID();
dataObj.posttime = new Date().getTime();
dataObj.delpw = postDelpw;
dataObj.blobkey = blobKey;
dataObj.putDB(ds);
blobInfo = blobInfoFactory.loadBlobInfo(dataObj.blobkey);
filelink =
"http://"
+ req.getServerName()
+ "/down/"
+ dataObj.fileid
+ "/"
+ blobInfo.getFilename();
postObj =
new PostObj(
dataObj.fileid,
filelink,
blobInfo.getSize(),
dataObj.posttime,
dataObj.delpw,
postShowgallery);
postObjList.add(postObj);
} else if (postType.equals("url") == true) {
picUrl = postText;
picRes = us.fetch(new URL(picUrl));
headerList = picRes.getHeaders();
picMime = "application/octet-stream";
for (index = 0; index < headerList.size(); index++) {
if (headerList.get(index).getName().compareToIgnoreCase("Content-Type") == 0) {
picMime = headerList.get(index).getValue();
break;
}
}
fileNamePart = picUrl.split("/");
picFile = fs.createNewBlobFile(picMime, fileNamePart[fileNamePart.length - 1]);
writeChannel = fs.openWriteChannel(picFile, true);
writeChannel.write(ByteBuffer.wrap(picRes.getContent()));
writeChannel.closeFinally();
dataObj = new DataObj();
dataObj.fileid = createUID();
dataObj.posttime = new Date().getTime();
dataObj.delpw = postDelpw;
dataObj.blobkey = fs.getBlobKey(picFile);
dataObj.putDB(ds);
blobInfo = blobInfoFactory.loadBlobInfo(dataObj.blobkey);
filelink =
"http://"
+ req.getServerName()
+ "/down/"
+ dataObj.fileid
+ "/"
+ blobInfo.getFilename();
postObj =
new PostObj(
dataObj.fileid,
filelink,
blobInfo.getSize(),
dataObj.posttime,
dataObj.delpw,
postShowgallery);
postObjList.add(postObj);
}
} catch (Exception e) {
}
}
linkID = postFile(us, postObjList);
if (req.getParameter("specflag") != null) {
resp.getWriter().print("http://tnfshmoe.appspot.com/link.jsp?linkid=" + linkID);
} else {
resp.sendRedirect("http://tnfshmoe.appspot.com/link.jsp?linkid=" + linkID);
}
} catch (Exception e) {
}
}