I am wanting to compare strings and am unable to. Consider this example:
#set($foo = "a")
#set($bar = "a")
#if($foo == $bar) // Not the same
#if($foo == $bar.toString()) // The same
#if($foo.toString() == $bar) // The same
If I cast a single one then it matches?
The example on Apache site shows similar use (though there is a typo saying neither choice will ever match)
#set ($foo = "deoxyribonucleic acid")
#set ($bar = "ribonucleic acid")
#if ($foo == $bar)
In this case it's clear they aren't equivalent. So...
#else
They are not equivalent and this will be the output.
#end
They do mention casting as string when items are of diff class of course but this is not my case.
What's going on? I am doing this on Serverless Framework using the AppSync Local plugin. Could the issue be there?
Update Potentially a bug in awsutils offline app sync package. Bug report filed. Stay tuned.
Related
I'm developing a library for reading CD-ROMs and the ISO9660 file system.
Long story short, pretty much everything is working except for one thing I'm having a hard time figuring out how it's done:
Where does XA standard defines differentiation among Mode 2 Form 1 from Mode 2 Form 2?
Currently, I am using the following pseudo-code to differentiate between both forms; albeit it's a naive heuristic, it does work but well, it's far from ideal:
var buffer = ... // this is a raw sector of 2352 bytes
var m2F1 = ISector.Cast<SectorMode2Form1>(buffer);
var edc1 = EdcHelper.ComputeBlock(0, buffer, 16, 2056);
var edc2 = BitConverter.ToUInt32(m2F1.Edc, 0);
var isM2F1 = edc1 == edc2;
if (isM2F1) return CdRomSectorMode.Mode2Form1;
// NOTE we cannot reliably check EDC of M2F2 since it's optional
var isForm2 =
m2F1.SubHeaderCopy1.SubMode.HasFlag(SectorMode2Form1SubHeaderSubMode.Form2) &&
m2F1.SubHeaderCopy2.SubMode.HasFlag(SectorMode2Form1SubHeaderSubMode.Form2);
if (isForm2) return CdRomSectorMode.Mode2Form2;
return CdRomSectorMode.Mode2Formless;
If you look at some software like IsoBuster, it appears to be a track-level property, however, I'm failing to understand where the value would be read from within the track.
I'm actually doing something similar in typescript for my ps1 mod tools. It seems like you actually probably have it correct here, since I'm going to assume your HasFlag check is checking position bit position 6 of the subheader. If that flag is set, you are in form 2.
So what you probably want something like:
const sectorBytes = new Uint8Arrray(buffer);
if (sectorBytes[0x012] & 0x20) === 0x20) {
return CdRomSectorMode.Mode2Form2;
} else {
return CdRomSectorMode.Mode2Form1;
}
You could of course use the flag code you already have, but that would require you to use one of the types first to get that. This just keeps it generic bytes and checks the flag, then returns the relevant mode.
I have a Lua function where I build a table of value and attempt to add it to a global table with a named key.
The key name is pulled from the function arguments. Basically, it's a filename, and I'm pairing it up with data about the file.
Unfortunately, the global table always comes back nil. Here's my code: (let me know if you need to see more)
(Commented parts are other attempts, although many attempts have been deleted already)
Animator = Class{}
function Animator:init(atlasfile, stringatlasfriendlyname, totalanimationstates, numberofframesperstate, booleanstatictilesize)
-- Define the Animator's operation mode. Either static tile size or variable.
if booleanstatictilesize ~= false then
self.isTileSizeStatic = true
else
self.isTileSizeStatic = false
end
-- Define the total animation states (walking left, walking right, up down, etc.)
-- And then the total frames per state.
self.numAnimationStates = totalanimationstates or 1
self.numAnimationFrames = numberofframesperstate or 2
-- Assign the actual atlas file and give it a programmer-friendly name.
self.atlasname = stringatlasfriendlyname or removeFileExtension(atlasfile, 'animation')
generateAnimationQuads(atlasfile, self.atlasname, self.numAnimationStates, self.numAnimationFrames)
end
function generateAnimationQuads(atlasfile, atlasfriendlyname, states, frames)
spriteWidthDivider = atlasfile:getWidth() / frames
spriteHeightDivider = atlasfile:getHeight() / states
animationQuadArray = generateQuads(atlasfile, spriteWidthDivider, spriteHeightDivider)
animationSetValues = {atlasarray = animationQuadArray, width = spriteWidthDivider, height = spriteHeightDivider}
--gAnimationSets[#gAnimationSets+1] = atlasfriendlyname
gAnimationSets[atlasfriendlyname] = animationSetValues
--table.insert(gAnimationSets, atlasfriendlyname)
end
Note: when using print(atlasfriendlyname) and print(animationSetValues), neither are empty or nil. They both contain values.
For some reason, the line(s) that assign the key pair to gAnimationSets does not work.
gAnimationSets is defined a single time at the top of the program in main.lua, using
gAnimationSets = {}
Animator class is called during the init() function of a character class called Bug. And the Bug class is initialized in the init() function of StartState, which extends from BaseState, which simply defines dummy init(), enter(), update() etc. functions.
StartState is invoked in main.lua using the StateMachine class, where it is passed into StateMachine as a value of a global table declared in main.lua.
gAnimationSets is declared after the table of states and before invoking the state.
This is using the Love2D engine.
Sorry that I came here for help, I've been picking away at this for hours.
Edit: more testing.
Trying to print the animationQuadArray at the index gTextures['buganimation'] always returns nil. Huh?
Here's gTextures in Main.lua
gTextures = {
['background'] = love.graphics.newImage('graphics/background.png'),
['main'] = love.graphics.newImage('graphics/breakout.png'),
['arrows'] = love.graphics.newImage('graphics/arrows.png'),
['hearts'] = love.graphics.newImage('graphics/hearts.png'),
['particle'] = love.graphics.newImage('graphics/particle.png'),
['buganimation'] = love.graphics.newImage('graphics/buganimation.png')
}
Attempting to return gTextures['buganimation'] returns a file value as normal. It's not empty.
My brain is so fried right now I can't even remember why I came to edit this. I can't remember.
Global table in Main.lua, all other functions can't access it.
print(gTextures['buganimation']) works inside the function in question. So gTextures is absolutely accessible.
Table isn't empty. AnimationSetValues is not empty.
I'm adding second answer because both are correct in context.
I ended up switching IDE's to VS Code and now the original one works.
I was originally using Eclipse LDT with a Love2D interpreter and in that environment, my original answer is correct, but in VS Code, the original is also correct.
So Dimitry was right, they are equivalent, but something about my actual Eclipse setup was not allowing that syntax to work.
I switched to VS Code after I had another strange syntax problem with the interpreter where goto syntax was not recognized and gave a persistent error. The interpreter thought goto was the name of a variable.
So I switched, and now both things are fixed. I guess I just won't use LDT for now.
Solution: Lua syntax. Brain Fry Syndrome
I wrote:
animationSetValues = {atlasarray = animationQuadArray, width = spriteWidthDivider, height = spriteHeightDivider}
Should be:
animationSetValues = {['atlasfile']=atlasfile, ['atlasarray']=animationQuadArray, ['width']=spriteWidthDivider, ['height']=spriteHeightDivider}
Edit: I'm fully aware of how to use answers. This was posted here to reserve my spot for an answer so I could edit it later when I returned back home, which is exactly what I'm doing right now. I'll keep the old post for archival purposes.
Original:
I solved it. I apologize for not posting the solution right now. My brain is melted into gravy.
I will post it tomorrow. Just wanted to "answer" saying no need to help. Solved it.
Solution is basically, "oh it's just one of those Lua things". Wonderful. I'm having so much fun with this language - you can tell by my blank expression.
From the language without line endings or brackets, but forced print parentheses... ugh. I'm going back to C# when this class is done.
This code is for a modding engine, Unitale base on Unity Written in Lua
So I am trying to use a Boolean Variable in my script poseur.lua, so when certain conditions are met so I can pass it to the other script encounter.lua, where a engine Predefined functions is being uses to make actions happens base on the occurring moment.
I tried to read the engine documentation multiple times, follow the exact syntax of Lua's fonction like GetVar(), SetVar(), SetGobal(),GetGlobal().
Searching and google thing about the Language, post on the subreddit and Game Exchange and tried to solve it by myself for hours... I just can't do it and I can't understand why ?
I will show parts of my codes for each.
poseur:
-- A basic monster script skeleton you can copy and modify for your own creations.
comments = {"Smells like the work\rof an enemy stand.",
"Nidhogg_Warrior is posing like his\rlife depends on it.",
"Nidhogg_Warrior's limbs shouldn't\rbe moving in this way."}
commands = {"GREET", "JUMP", "FLIRT", "CRINGE"}
EndDialougue = {" ! ! !","ouiii"}
sprite = "poseur" --Always PNG. Extension is added automatically.
name = "Nidhogg_Warrior"
hp = 99
atk = 1
def = 1
check = "The Nidhogg_Warrior is\rsearching for the Nidhogg"
dialogbubble = "rightlarge" -- See documentation for what bubbles you have available.
canspare = false
cancheck = true
GreetCounter = 5
Berserk = false
encounter:
-- A basic encounter script skeleton you can copy and modify for your own creations.
encountertext = "Nidhogg_Warrior is\rrunning frantically"
nextwaves = {"bullettest_chaserorb"}
wavetimer = 5.0
arenasize = {155, 130}
music = "musAncientGuardian"
enemies = {"poseur"}
require("Monsters.poseur")
enemypositions = {{0, 0}}
-- A custom list with attacks to choose from.
-- Actual selection happens in EnemyDialogueEnding().
-- Put here in case you want to use it.
possible_attacks = {"bullettest_bouncy", "bullettest_chaserorb", "bullettest_touhou"}
function EncounterStarting()
-- If you want to change the game state immediately, this is the place.
Player.lv = 20
Player.hp = 99
Player.name = "Teemies"
poseur.GetVar("Berserk")
end
Thank you for reading.
The answer to my problem was to use SetGobal(), GetGobal().
For some reasons my previous attempt to simply use SetGobal()Resulted in nil value despite writing it like that SetGobal("Berserk",true) gave me a nill value error, as soon as I launch the game.
But I still used them wrong. First I needed to put it SetGobal() at the end of the condition instead of at the start of the the poseur.lua script because the change of value... for some reasons was being overwritten by it first installment.
And to test the variable in the function in my encounter.lua, I needed to write it like that
function EnemyDialogueStarting()
-- Good location for setting monster dialogue depending on how the battle is going.
if GetGlobal("Jimmies") == true then
TEEEST()
end
end
Also any tips an suggestions are still welcome !
Well firstly, in lua simple values like bool and number are copied on assignment:
global={}
a=2
global.a=a--this is a copy
a=4--this change won't affect value in table
print(global.a)--2
print(a)--4
Secondly,
SetGobal and the other mentioned functions are not part of lua language, they must be related to your engine. Probably, they use word 'Global' not as lua 'global' but in a sense defined by engine.
Depending on the engine specifics these functions might as well do a deep copy of any variable they're given (or might as well not work with complicated objects).
My application has a couple of services that make external calls via httpClient (GET and POST) that are unlikely to change in months, but they are slow; making my application even slower.
Clarification: this is NOT about caching GORM/hibernate/queries to my db.
How can I cache these methods (persistence on disk gets bonus points...) in grails 2.1.0?
I have installed grails-cache-plugin but it doesn't seem to be working, or i configured it wrong (very hard to do since there are 2-5 lines to add only, but i've managed to do it in the past)
I also tried setting up an nginx proxy cache in front of my app, but when i submit one of my forms with slight changes, I get the first submission as result.
Any suggestions/ideas will be greatly appreciated.
EDIT: Current solution (based on Marcin's answer)
My config.groovy: (the caching part only)
//caching
grails.cache.enabled = true
grails.cache.clearAtStartup = false
grails.cache.config = {
defaults {
timeToIdleSeconds 3600
timeToLiveSeconds 2629740
maxElementsInMemory 1
eternal false
overflowToDisk true
memoryStoreEvictionPolicy 'LRU'
}
diskStore {
path 'cache'
}
cache {
name 'scoring'
}
cache {
name 'query'
}
}
The important parts are:
do not clear at startup (grails.cache.clearAtStartup = false)
overflowToDisk=true persists all results over maxElementsInMemory
maxElementsInMemory=1 reduced number of elements in memory
'diskStore' should be writable by the user running the app.
Grails Cache Plugin works quite well for me under Grails 2.3.11. Documentation is pretty neat, but just to show you a draft...
I use the following settings in Config.groovy:
grails.cache.enabled = true
grails.cache.clearAtStartup = true
grails.cache.config = {
defaults {
maxElementsInMemory 10000
overflowToDisk false
maxElementsOnDisk 0
eternal true
timeToLiveSeconds 0
}
cache {
name 'somecache'
}
}
Then, in the service I use something like:
#Cacheable(value = 'somecache', key = '#p0.id.toString().concat(#p1)')
def serviceMethod(Domain d, String s) {
// ...
}
Notice the somecache part is reused. Also, it was important to use String as key in my case. That's why I used toString() on id.
The plugin can be also set up to use disk storage, but I don't use it.
If it doesn't help, please provide more details on your issue.
This may not help, but if you upgrade the application to Grails 2.4.x you can use the #Memoize annotation. This will automagically cache the results of each method call based upon the arguments passed into it.
In order to store this "almost static" information you could use Memcached or Redis as a cache system. (There are many others)
This two cache systems allows you to store key-value data (in your case something like this "key_GET": JSON,XML,MAP,String ).
Here is a related post: Memcached vs. Redis?
Regards.
We upgraded our jira to version 5.0.5 today, before we were running version 4.2.4. In that version we had made a custom release notes template that would also show all comments made on an issue. To do that we had to be able to get a CommentManager object. We did this like this:
#foreach ($issue in $issueType.issues)
#if($issueType.issues.size() > 0)
#set ($comments = $action.ComponentManager.CommentManager.getComments($issue))
#if ($comments)
#foreach ($comment in $comments)
...
That worked fine in JIRA 4.2.4 however it isn't working anymore in jira 5.0.5, does anyone know how i can get a CommentManager object again when creating a custom release notes template in JIRA 5.0.5 or how to get a CommentManager object some other way, without using $action for example?
In your vm template, write this:
#set ($componentAccessorClass = $constantsManager.getClass().getClassLoader().findClass('com.atlassian.jira.component.ComponentAccessor'))
#set ($componentAccessorConstructor = $componentAccessorClass.getConstructor())
#set ($componentAccessor = $componentAccessorConstructor.newInstance())
Now you have access to the Component Accessor which can get you pretty much anything you want, including the Comment Manager.
Now, all you have to do is call getCommentManager() on your Component Accessor variable.
#set($commentManager = $componentAccessor.getCommentManager() )
Hope that helps ! :)
JiraWebActionSupport has the following deprecated method that provided the component manager object.
#Deprecated
public ComponentManager getComponentManager()
{
return ComponentManager.getInstance();
}
and https://developer.atlassian.com/display/JIRADEV/Creating+a+Custom+Release+Notes+Template+Containing+Release+Comments
has some Velocity code but looking at the 5.0.1 source it looks like Velocity is no longer being used?
I would file an Improvement at https://jira.atlassian.com/browse/JRA to add a getCommentManager method to JiraWebActionSupport.java
this is the way i used in jira to get a componentmanager object, once you have the componentmanager object it's rather easy to do the rest:
#set ($componentManagerClass = $constantsManager.getClass().getClassLoader().findClass('com.atlassian.jira.ComponentManager'))
#set ($method = $componentManagerClass.getDeclaredMethod('getInstance', null))
#set ($componentManager = $method.invoke(null, null))
i'm using this solution now, and it can be rather helpfull to others to almost get any kind of class using the constantsmanager.