I have a Play (version 1.4) app currently hosted on Heroku that lets users create items for auction like eBay. The main process is the user fills out a form with information about the photo that is being uploaded. When the form is submitted the information is stored in a database. The photo however, I want to be stored using Amazon's S3 service. On success, the page that creates the auction item is directed to a page that shows the image with the information that was just uploaded.
I am probably more than half way there, because when my form submits, the image is successfully being sent to the bucket I created for it using S3. So that's good news. The bad news is, immediately upon submission, the app crashes, I get my "Oops!" error page, and when I check my database, none of the information was saved. The method responsible for creating the new auction item, doCreateItem(), the process I just described, where I am able to send the photo to AWS, but the app crashes not saving the data to the database, that method, looks like this:
public static void doCreateItem(#Valid AuctionItem item){
if (validation.hasErrors()){
params.flash();
validation.keep();
createAuctionItem();
}
// item.photo = new S3Blob();
// item.photo.set(new FileInputStream(item.photo), MimeTypes.getContentType(item.photo.getName()));
item.createdBy = Authenticate.getLoggedInUser();
item.save();
show(item.id);
}
https://github.com/cmazzochi81/java-play-app/blob/master/app/controllers/Application.java
And the stack trace, looks like this:
In the stack trace when it refers to this error:
Execution exception (In /app/controllers/Application.java around line 43)
Line 43 in my code is the following line where the method is trying to save the data to the database:
item.save();
Now when I uncomment out the two lines in the doCreateMethod()
item.photo = new S3Blob();
item.photo.set(new FileInputStream(item.photo)
When I do that, I'm not even able to push my app to Heroku. The error in the console says the constructor FileInputStream(S3Blob), is undefined:
I am trying to do the exact same thing James Ward does in this article:
https://www.jamesward.com/2011/09/13/sending-play-framework-file-uploads-to-amazon-s3
The GitHub repo for my project can be found here:
https://github.com/cmazzochi81/java-play-app
Your assistance would be greatly appreciated. I have worked extremely hard on this project, and it is this close to being done.
Thank you in advance,
CM
Related
I have searched and searched and cannot seem to pull data from the draft's folder within the device. Basically I am wanting to pull the typed (unsent) message from the user's conversation, my thinking is that it was stored within Android as a draft. However if I try to search the draft folder using the uri-
Uri message = Uri.parse("content://sms/draft/");
No data is returned. I have adjusted it to remove the 'draft' portion and it does return all my inbox messages. I have ensured that the permissions have been set and accepted.
Requirement is to sync mails from Gmail for an user into our CRM. The system in place is based on Google Pub/Sub which watches inbox of the user for any change and fires the notification to our HTTPs endpoint. More on this at Gmail cloud pub/sub.
Based on the above procedure we git history of changes. And then i am interested in only new messages, so history.getMessagesAdded is preferred as per this guide. Issue we are facing now is the first mail of a thread is not captured under messagesAdded all the subsequent messages are passing through our system.
Note: For the first mail, we do get push from Google. But when we try to get Messages added it turns out empty. Is there anything special needs to be done for the first mail of the thread or am i missing out something.
I was experiencing a very similar problem, and my mistake was that I was using the historyId from the push notification, the solution was to store the last known historyId on my database, so, every time I get a notification, I get the history from the id I have stored, not the one from the notification.
In my case, the historyId from the notification doesn't even make part of the history, maybe because of my watch restrictions: labelIds=['INBOX']
This is the google pub/sub notification:
{
message:
{
data: {"emailAddress": "user#example.com", "historyId": "9876543210"},
message_id: "1234567890",
}
subscription: "projects/myproject/subscriptions/mysubscription"
}
I was using the message.data.historyId, wich was causing the confusion!
The message.data, comes as a base64 encoded string, in this example I just decoded it!
Step by step for watching new e-mails on the inbox:
Do all the configuration in the google pub/sub.
Start watching the user with the filters you want (docs.: https://developers.google.com/gmail/api/v1/reference/users/watch)
Store the historyId obtained in the step 2
When receive the notification, get all the events (history) using the stored id as the startHistoryId parameter (docs: https://developers.google.com/gmail/api/v1/reference/users/history/list)
In the history list obtained on the step 4, look for the new messages: history.getMessagesAdded().
Update the last known history id in your database, so you don't need to deal with the whole history every time!
I hope it helps.
my boss asked me to develop an webservice that should work in this matter:
an external app contact my app and:
if the method used is GET and the url contacted is:
http://localhost:8080/webapp/webservice/?findall
will return all rows find in a table;
If the same external app contact my app in the same method but send a key and a value like:
http://localhost:8080/webapp/webservice/?field1=value1
my app will return a set of rows filtered by field/value.
And soon on with with any method sending request and with other fields.
I know how do the operations using JPA 2.1 but how mapping the actions?
Someone could help me to starting in the right direction with JDK1.8?
i was trying to call the following web service from my android app, it hung then completed without returning the result:
web service:http://androidexample.com/media/webservice/JsonReturn.php
However when I clicked on the link, it worked fine - the json file displayed. yet it would not work in my app..
but now, it works fine now in my android app, perhaps it was temporarily down is what I am guessing. How can I know if a web service is up and running for an android app to consume ?
Typically, web services are designed to have a status page that can return status text or a HTTP return code to indicate service status.
If it doesn't have that, you can design a function to periodically do a very basic request with a known result to determine state. This is much better than doing a simple ping.
If it was down it would most likely show a HTML error page, which your app would try to parse, which would cause an error.
I had a similar issue, because I needed to know if the user was returning HTML or the correct JSON, to do this I created the ArrayList I was about to use outside of the try/catch of the parse area. You should do the same if you are using a string.
What I mean is, use:
ArrayList<Something> arrayList = new ArrayList<Something>();
String testString = ""; instead of String testString = null;
I was using only ArrayList<Something> arrayList; at one point which is incorrect. If the user then returns HTML, you won't get an error, the user will simply return an empty arraylist or empty string.
You can then plan for that and show some sort of error message. This way you only need one network request but you can still plan for getting the data back, and the server being down.
I'm trying to publish a photo to a page using the following:
FacebookClient client = new DefaultFacebookClient(destinationAccessToken);
BinaryAttachment attachment = BinaryAttachment.with(imageName, imageInputStream);
Photo photoResponse = client.publish("/me/photos", Photo.class, attachment);
I'm getting the following response:
{
"error": {
"message":"An unexpected error has occurred. Please retry your request later.",
"type":"OAuthException",
"code":2
}
}
When I use the same code to publish to a user wall it works fine.
I've also tried posting to "/{page id}/photos" with the same result.
The destination access token has the manage_pages, photo_upload, publish_actions, and publish_stream permissions amongst others.
What am I doing wrong here?
UPDATE:
If I publish to a predetermined album using "/{album id}/photos" then it works. Quoting this Facebook developer blog post:
https://graph.facebook.com/USER_ID/photos - The photo will be
published to an album created for your app. We automatically create an
album for your app if it does not already exist. All photos uploaded
this way will then be added to this same album.
So is this behavior broken for pages? Or am I misunderstanding something here?
UPDATE 2:
I found a bug report for this issue, so I'm posting that as an answer.
UPDATE 3:
The bug seems to have been resolved.
I found the Facebook bug report corresponding to this behavior:
http://developers.facebook.com/bugs/355536551171535
So it would seem I'm not doing anything wrong. I guess the temporary workaround would be to check for a predetermined album and create it if necessary, then publish to it. (Note that the user_photos permission is not needed for this workaround, since albums/photos on pages are always public).