NXT :: descendant of Bitcoin - Updated Information - page 364.

antanst

sr. member

Activity: 294

Merit: 260

Quote from: Come-from-Beyond on March 13, 2014, 12:53:11 PM

Unfortunatelly, most of guys know that "unit tests should be used", but they don't use sanity checks of this statement. In our project (when we don't have spare Java coders) unit tests would hurt the development. So, guys, stop talking about unit tests made in a perfect world, come back to the reality. /endOfDiscussion.

I'm not saying you should unit test, it's your baby after all. I'm saying that unit tests aren't useless per se.

Jean-Luc

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Activity: 392

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Quote from: opticalcarrier on March 13, 2014, 10:31:58 AM

WIll there be a similar update for the 0.7.x train? Or it is obsoleted? The reason I ask is that all of a sudden, with 0.8.x train I get isolated on my own fork very frequently, causing restart of java with old blockchain. I went to 0.7.7 and problem went away.

No more 0.7 releases. I don't have the time to maintain two branches, and asset exchange features and bugfixes are not in 0.7.

I haven't had such problems with forks on 0.8, I saw a few rescans today but now it has recovered without need for restart.

swartzfeger

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Activity: 350

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Quote from: wesleyh on March 13, 2014, 12:56:54 PM

Yup, shouldn't have updated Wink

My client is not yet included it seems.

Ack!

Do you have the url handy for the wallet.zip? I don't think it's listed on extra.org yet...

wesleyh

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Activity: 308

Merit: 250

Quote from: swartzfeger on March 13, 2014, 12:55:54 PM

Wesley, updated the mac wallet to 0.8.9 and no longer greeted with the login but with this:

(resized the window to keep the screenshot small)

After the update, it defaults back to test net, so I switched to main, restarted... same thing.

Yup, shouldn't have updated Wink

My client is not yet included it seems.

wesleyh

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Activity: 308

Merit: 250

Quote from: Jean-Luc on March 13, 2014, 12:54:08 PM

Quote from: wesleyh on March 13, 2014, 09:24:18 AM

Would probably need an api for that, availableBalance / effectiveBalance in getAccount assets list. CFB - any comments?

You need to use Account.getUnconfirmedAssetBalance(). Of course I just noticed it is not returned in the http API, sorry. I will add it.

The whole http API needs some critical review and improvement.

critical review and improvement: can you comment on what that means?

swartzfeger

full member

Activity: 350

Merit: 100

Wesley, updated the mac wallet to 0.8.9 and no longer greeted with the login but with this:

(resized the window to keep the screenshot small)

After the update, it defaults back to test net, so I switched to main, restarted... same thing.

Jean-Luc

sr. member

Activity: 392

Merit: 250

Quote from: wesleyh on March 13, 2014, 09:24:18 AM

Would probably need an api for that, availableBalance / effectiveBalance in getAccount assets list. CFB - any comments?

You need to use Account.getUnconfirmedAssetBalance(). Of course I just noticed it is not returned in the http API, sorry. I will add it.

The whole http API needs some critical review and improvement.

Come-from-Beyond

legendary

Activity: 2142

Merit: 1010

Newbie

Quote from: antanst on March 13, 2014, 12:45:04 PM

Don't get me wrong, it's one thing talking about unit tests and another thing actually writing them. I'm also not particularly fond of them, but I acknowledge their usefulness.

Unfortunatelly, most of guys know that "unit tests should be used", but they don't use sanity checks of this statement. In our project (when we don't have spare Java coders) unit tests would hurt the development. So, guys, stop talking about unit tests made in a perfect world, come back to the reality. /endOfDiscussion.

antanst

sr. member

Activity: 294

Merit: 260

Quote from: wesleyh on March 13, 2014, 12:44:00 PM

Yes, you still need to implement curve, but don't need to construct whatever you need to send yourself and you can still rely on the error messages sent back from the server. I don't believe there is any other way?

That's right. Previously, you needed to construct the raw transaction bytes and sign them. As of 0.8.9 you request the raw bytes from NRS, sign them and send them back.

antanst

sr. member

Activity: 294

Merit: 260

Quote from: Come-from-Beyond on March 13, 2014, 11:30:19 AM

Quote from: antanst on March 13, 2014, 11:22:15 AM

Come on, unit tests are useful precisely when testing new features. Whether you like them or not is irrelevant.

One does not simply unit test a system with eventual consistency.

The same test ran 2 times will return different results if tested in real conditions. Testing in artificial conditions is quite useless coz require to conduct other types of tests.

I agree, but that's another story, irrelevant to whether a feature is new or not. And there are various levels where unit testing can be applied, not just the "outer network" level.

Don't get me wrong, it's one thing talking about unit tests and another thing actually writing them. I'm also not particularly fond of them, but I acknowledge their usefulness.

wesleyh

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Activity: 308

Merit: 250

Quote from: marcus03 on March 13, 2014, 11:54:31 AM

Quote from: wesleyh on March 13, 2014, 11:51:04 AM

Quote from: marcus03 on March 13, 2014, 11:50:39 AM

Quote from: wesleyh on March 13, 2014, 11:48:05 AM

Quote from: marcus03 on March 13, 2014, 11:46:52 AM

Does anybody have a "hello world" example of using the Java API?

Gonna become a heavyweight client again?

Nah... Just brainstorming for the InfCom regarding NXT network monitoring.

And you? Gonna implement Curve finally? ;-)

With the new api it should be much easier, will start on it now Wink

Seriously, I assumed that the signing API calls would be a way around having to implement the Curve algo, but from what I understand you still need to, so I'm no longer sure what these calls are for. Just that you don't have to implement the "not enough funds" check?

Yes, you still need to implement curve, but don't need to construct whatever you need to send yourself and you can still rely on the error messages sent back from the server. I don't believe there is any other way?

FrictionlessCoin

legendary

Activity: 868

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Cryptotalk.org - Get paid for every post!

Quote from: Come-from-Beyond on March 13, 2014, 11:37:37 AM

Quote from: klee on March 13, 2014, 11:32:00 AM

Is anything on NXT unit tested? EVER?

Dunno. Unit tests r not a panacea, more likely a modern trend between people who used to code for outsourcing. Good thing for u is that Jean-Luc decides how to test, not me.

no comment needed.

msin

legendary

Activity: 1470

Merit: 1004

NXT AT PROJECT HELP. NEED JAVA PROGRAMMER.

This is a request by CIYAM for help with AT. Need to get on this asap

Quote:
The first thing we are going to need is a Java programmer to convert my C++ prototype (and yes I want the Java code to use the console so we can easily run test cases).

Unfortunately CfB isn't interested in doing this in a way that would allow for proper testing so I'd rather he wasn't actually involved in AT other than providing assistance with the Nxt AT API side of things (i.e. how Nxt AT can send and receive transactions as well as get other information and some general functions like say testing a hash value).

Come-from-Beyond

legendary

Activity: 2142

Merit: 1010

Newbie

Quote from: ?? on ??

Quote from: Come-from-Beyond on March 13, 2014, 09:41:55 AM

Quote from: ^[GS]^ on March 13, 2014, 09:28:55 AM

Thanks, but neither worked.

I have some simple questions...

1) Calculating the HIT with SHA256(generationSignature, publicKey)...
*) generationSignature of the block - Okey
a) publicKey the "generator" of the block or my account? - Ur account.
b) hash("sha256", hex2bin($generationSignature) . $accountPublicKey); or hash("sha256", hex2bin($generationSignature) . hex2bin($accountPublicKey)); - Binary.

2) $deadline = $hit / ($baseTarget * $totalEffectiveBalance); or $deadline = $hit / ($baseTarget * $effectiveBalance);
a) $totalEffectiveBalance of getState()
b) $effectiveBalance my account (getBalance()). - This.

Thanks!

Okay!!! Thanks!

My problem is to get the HIT! Undecided

Finally... which is correct? Embarrassed

a) $hit = hash("sha256", hex2bin($generationSignature) . $accountPublicKey); (¿Only signature binary?)
b) $hit = hash("sha256", hex2bin($generationSignature) . hex2bin($accountPublicKey)); (¿All binary?)

PHP hash() function is "valid" for the made the SHA256?

and then this is correct?

Code:

$hit = substr($hit, 0, 8);
$hit = hexdec($hit);

Example output:

Quote

generationSignature = ef6e7257b95ea530384db7a24bf2c0415a091f1e99a0b9b4c712c13af3d71c68
publickey = 25ae5107a806e561488394ed5b59916d61c2f0110182e67a1aae19cd6bd86d0e
*)hash f41bff20e6e49f5a6ac431f59841ff54d152c1670b99609807ad172a6636b1fb (All binary)
*)substr f41bff20
hit = 4095475488

Thank you very much

Change endianness.

marcus03

full member

Activity: 224

Merit: 100

Quote from: wesleyh on March 13, 2014, 11:51:04 AM

Quote from: marcus03 on March 13, 2014, 11:50:39 AM

Quote from: wesleyh on March 13, 2014, 11:48:05 AM

Quote from: marcus03 on March 13, 2014, 11:46:52 AM

Does anybody have a "hello world" example of using the Java API?

Gonna become a heavyweight client again?

Nah... Just brainstorming for the InfCom regarding NXT network monitoring.

And you? Gonna implement Curve finally? ;-)

With the new api it should be much easier, will start on it now Wink

Seriously, I assumed that the signing API calls would be a way around having to implement the Curve algo, but from what I understand you still need to, so I'm no longer sure what these calls are for. Just that you don't have to implement the "not enough funds" check?

GCInc.

hero member

Activity: 566

Merit: 500