Hi Alain,
I read recently updated contacts from the feed and execute the update for
each to measure the timestamp difference.
What I see is that for some contacts the difference is abnormal (I printed
out the entry.getUpdated() this time also):
2011/08/07 13:20:30:956 PDT [WARN] GMail ~ Time diff (min): 1, str:
2011-08-07T20:18:15.362Z
2011/08/07 13:20:39:099 PDT [WARN] GMail ~ Time diff (min): 1, str:
2011-08-07T20:18:43.648Z
2011/08/07 13:20:49:630 PDT [WARN] GMail ~ Time diff (min): 62, str:
2011-08-07T19:17:54.834Z <---- 62min?
...
I am using the following versions in my maven setup:
<properties>
<gdataVersion>1.41.5</gdataVersion>
</properties>
<dependency>
<groupId>com.google.gdata</groupId>
<artifactId>gdata-contacts-3.0</artifactId>
<version>${gdataVersion}</version>
</dependency>
...
<dependency>
<groupId>com.google.gdata</groupId>
<artifactId>gdata-client-1.0</artifactId>
<version>${gdataVersion}</version>
</dependency>
<dependency>
<groupId>com.google.gdata</groupId>
<artifactId>gdata-core-1.0</artifactId>
<version>${gdataVersion}</version>
</dependency>
<dependency>
<groupId>com.google.collections</groupId>
<artifactId>google-collections</artifactId>
<version>1.0</version>
</dependency>
On 8/5/11 9:47 AM, "Alain Vongsouvanh" <[email protected]> wrote:
> Hello Alexey,
>
> Sorry about the delay in getting back to you! I just tried updating and
> checking the difference between my computer timestamp and the updated value
> timestamp and the difference was within 1 or 2 seconds, not hours.
>
> Can you try printing the value of "entry.getUpdated()" to check if the string
> representation makes sense. Also, what version of the client library are you
> using?
>
> Best,
> Alain
>
> On Tue, Aug 2, 2011 at 1:02 PM, Alexey Panteleev <[email protected]> wrote:
>>
>> Hello,
>>
>>
>>
>> I've been running some experiments monitoring the Updated timestamp on
>> contact records:
>>
>>
>>
>> long t1 = System.currentTimeMillis();
>>
>> entry = myService.update(new URL(entry.getEditLink().getHref()), entry);
>>
>> long updateTimeDiff = t1 - entry.getUpdated().getValue();
>>
>>
>>
>> What I see is that the time difference between the update time and my local
>> time varies drastically from one call to another,
>>
>> one time I see 1min difference another time it is 50min difference, which
>> really means that the google servers record very different utc timestamps for
>> events that actually happen next to each other.
>>
>>
>>
>> Can you please explain this and also tell me how I could rely on these
>> timestamps during synchronization when deciding which record was updated more
>> recently?
>>
>>
>>
>> Thanks
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