I have an ActiveMQ embedded broker, along with a number of Topic clients. Everything is currently configured in Java (rather than XML). I want to configure total ordering of the topic's messages across clients.
ActiveMQ specifies total ordering as a per-destination policy. Is there a way to configure this in Java directly?
The vanillaish startup code I've been using:
// broker code (single broker)
BrokerService broker = new BrokerService();
broker.addConnector(address);
broker.setPersistent(false);
broker.setUseJmx(false);
broker.start();
// client code (multiple clients)
ActiveMQConnectionFactory connectionFactory
= new ActiveMQConnectionFactory(address);
connection = connectionFactory.createConnection();
connection.start();
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
topic = session.createTopic(topicName);
producer = session.createProducer(topic);
consumer = session.createConsumer(topic);
The code would look something like this:
PolicyEntry policy = new PolicyEntry();
policy.setDispatchPolicy(new StrictOrderDispatchPolicy());
PolicyMap pMap = new PolicyMap();
pMap.setDefaultEntry(policy);
broker.setDestinationPolicy(pMap);
Related
I'm developing an application that tracks exchange email messages in our company.
We where able to get info out from the tracking log, but in the log -by design- there is no subject or body message.
So the next step for us was using EWS to get the message detail when needed.
The question is that in the tracking log we find to IDs :
MessageId in format "F533E7F015A2E24F8D8ABFE2587117C601EDF245#blstex02.subdomain.domain.com"
and
InternalMessageId in format "5840818"
If in EWS we use this id to find the message by id we always get an "Id is malformed." exception.
Here is the code we use:
public static EmailMessage GetEmailById(string uNameToImpersonate, string StringItemId)
{
return EmailMessage.Bind(GetService(uNameToImpersonate), new ItemId(StringItemId));
}
I'm a newbie to EWS so maybe I'm missing something really easy...
Thanks for your help
You can only bind to a Message using the EWSId see https://msdn.microsoft.com/en-us/library/office/dn605828(v=exchg.150).aspx for a more detailed discussion.For the InternetId you will need to search for messages with that particular Id using the findItem operation eg something like
ItemView ivew = new ItemView(1);
service.TraceEnabled = true;
ExtendedPropertyDefinition PidTagInternetMessageId = new ExtendedPropertyDefinition(4149, MapiPropertyType.String);
SearchFilter sf = new SearchFilter.IsEqualTo(PidTagInternetMessageId, "F533E7F015A2E24F8D8ABFE2587117C601EDF245#blstex02.subdomain.domain.com");
FindItemsResults<Item> iCol = service.FindItems(WellKnownFolderName.Inbox, sf, ivew);
foreach (Item item in iCol.Items)
{
Console.WriteLine(item.Subject);
}
Using the code examples provided by Independentsoft:
PropertyName myPropertyName = new PropertyName("Disabled", StandardPropertySet.PublicStrings, MapiPropertyType.String);
Exists restrictionExists = new Exists(myPropertyName);
response = service.FindItem(StandardFolder.Inbox, MessagePropertyPath.AllPropertyPaths, new Not(restrictionExists));
we are getting the message but the BodyHtmlText is null...
Using Exchange Server 2010 SP2.
Anyone had any problems with this?
FindItems doesn't return the body (and a number of other properties) you need to make a GetItem Request on the Item in question to get these properties see https://msdn.microsoft.com/en-us/library/bb508824.aspx
The older MTurk API (and boto2) had an UpdateQualificationScore method that would allow users to update the score of a specific worker, but this seems to have disappeared in the latest version(s) based on boto3.
The latest MTurk API has a GetQualificationScore method (which actually returns a full worker qualification record, not just the score), but no corresponding UpdateQualificationScore method. What is the mechanism to update a score for an existing worker?
As best as I can tell, the proper way to do this with the boto3 is to use the AssociateQualificationWithWorker endpoint:
session = boto3.Session(profile_name='mturk')
client = session.client('mturk')
response = client.associate_qualification_with_worker(
QualificationTypeId=qualification_type_id,
WorkerId=worker_id,
IntegerValue=score,
SendNotification=False,
)
This seems to work, especially when taken alongside GetQualificationScore returning the "full" qualification record instead of just the score.
ex-nerd's answer is correct. Building off the Python sample available at http://requester.mturk.com/developer, the following works to assign a QualificationType then change the score for that Worker:
import boto3
region_name = 'us-east-1'
aws_access_key_id = 'YOUR_ACCESS_ID'
aws_secret_access_key = 'YOUR_SECRET_KEY'
endpoint_url = 'https://mturk-requester-sandbox.us-east-1.amazonaws.com'
# Uncomment this line to use in production
# endpoint_url = 'https://mturk-requester.us-east-1.amazonaws.com'
client = boto3.client(
'mturk',
endpoint_url=endpoint_url,
region_name=region_name,
aws_access_key_id=aws_access_key_id,
aws_secret_access_key=aws_secret_access_key,
)
# This will assign the QualificationType
client.associate_qualification_with_worker(QualificationTypeId = '3KIOU9ULHKIIS5OPUVORW7OE1070V0', WorkerId = 'A39ECJ12CY7TE9', IntegerValue = 100)
# This will set the QualificationScore from 100 to 90
client.associate_qualification_with_worker(QualificationTypeId = '3KIOU9ULHKIIS5OPUVORW7OE1070V0', WorkerId = 'A39ECJ12CY7TE9', IntegerValue = 90)
in a Windows 10 UWP I try use WebAuthenticationCoreManager.RequestTokenAsync to get the result from a login with a Microsoft account.
I get a WebTokenRequestResult with Success. ResponseData[0] contains a WebAccount with an ID - but the UserName is empty.
The scope of the call is wl.basic - so I should get a lot of information...
I'm not sure how to retrieve extra information - and for the current test the Username would be OK.
I checked out the universal samples - and there I found a snippet which tries to do what I'm trying - an output of webTokenRequestResult.ResponseData[0].WebAccount.UserName.
By the way - the example output is also empty.
Is this a bug - or what do I (and the MS in the samples) have to do to get the users profile data (or at least the Username)?
According to the documentation (https://learn.microsoft.com/en-us/windows/uwp/security/web-account-manager), you have to make a specific REST API call to retrieve it:
var restApi = new Uri(#"https://apis.live.net/v5.0/me?access_token=" + result.ResponseData[0].Token);
using (var client = new HttpClient())
{
var infoResult = await client.GetAsync(restApi);
string content = await infoResult.Content.ReadAsStringAsync();
var jsonObject = JsonObject.Parse(content);
string id = jsonObject["id"].GetString();
string name = jsonObject["name"].GetString();
}
As to why the WebAccount property doesn't get set... shrugs
And FYI, the "id" returned here is entirely different from the WebAccount.Id property returned with the authentication request.
Now that Google has announced availability of Cloud SQL storage for app engine, what will be the best way to migrate existing data from BigTable/GAE Datastore to MySQL?
To respond to the excellent questions brought up by Peter:
In my particular scenario, I kept my data model very relational.
I am fine with taking my site down for a few hours to make the transition, or at least warning people that any changes they make for the next few hours will be lost due to database maintenance, etc.
My data set is not very large - the main dashboard for my app says .67gb, and the datastore statistics page says it's more like 200mb.
I am using python.
I am not using the blobstore (although I think that is a separate question from a pure datastore migration - one could migrate datastore usage to MySql while maintaining the blobstore).
I would be fine with paying a reasonable amount (say, less than $100).
I believe my application is Master/Slave - it was created during the preview period of App Engine. I can't seem to find an easy way to verify that though.
It seems like the bulk uploader should be able to be used to download the data into a text format that could then be loaded with mysqlimport, but I don't have any experience with either technology. Also, it appears that Cloud SQL only supports importing mysqldumps, so I would have to install MqSQL locally, mysqlimport the data, then dump it, then import the dump?
An example of my current model code, in case it's required:
class OilPatternCategory(db.Model):
version = db.IntegerProperty(default=1)
user = db.UserProperty()
name = db.StringProperty(required=True)
default = db.BooleanProperty(default=False)
class OilPattern(db.Model):
version = db.IntegerProperty(default=2)
user = db.UserProperty()
name = db.StringProperty(required=True)
length = db.IntegerProperty()
description = db.TextProperty()
sport = db.BooleanProperty(default=False)
default = db.BooleanProperty(default=False)
retired = db.BooleanProperty(default=False)
category = db.CategoryProperty()
class League(db.Model):
version = db.IntegerProperty(default=1)
user = db.UserProperty(required=True)
name = db.StringProperty(required=True)
center = db.ReferenceProperty(Center)
pattern = db.ReferenceProperty(OilPattern)
public = db.BooleanProperty(default=True)
notes = db.TextProperty()
class Tournament(db.Model):
version = db.IntegerProperty(default=1)
user = db.UserProperty(required=True)
name = db.StringProperty(required=True)
center = db.ReferenceProperty(Center)
pattern = db.ReferenceProperty(OilPattern)
public = db.BooleanProperty(default=True)
notes = db.TextProperty()
class Series(db.Model):
version = db.IntegerProperty(default=3)
created = db.DateTimeProperty(auto_now_add=True)
user = db.UserProperty(required=True)
date = db.DateProperty()
name = db.StringProperty()
center = db.ReferenceProperty(Center)
pattern = db.ReferenceProperty(OilPattern)
league = db.ReferenceProperty(League)
tournament = db.ReferenceProperty(Tournament)
public = db.BooleanProperty(default=True)
notes = db.TextProperty()
allow_comments = db.BooleanProperty(default=True)
complete = db.BooleanProperty(default=False)
score = db.IntegerProperty(default=0)
class Game(db.Model):
version = db.IntegerProperty(default=5)
user = db.UserProperty(required=True)
series = db.ReferenceProperty(Series)
score = db.IntegerProperty()
game_number = db.IntegerProperty()
pair = db.StringProperty()
notes = db.TextProperty()
entry_mode = db.StringProperty(choices=entry_modes, default=default_entry_mode)
Have you considered using the Map Reduce framework?
You could write mappers that store the datastore entities in CloudSQL.
Do not forget to add a column for the datastore key, this might
help you avoiding duplicate rows or identifying missing rows.
You might have a look at https://github.com/hudora/gaetk_replication
for an inspiration on the mapper functions.