this is with in a library module, so it should not use the generated API
upgrade to Glide 4.9.0
versions.glide = "4.9.0"
implementation "com.github.bumptech.glide:glide:$versions.glide"
kapt "com.github.bumptech.glide:compiler:$versions.glide"
implementation "com.github.bumptech.glide:annotations:$versions.glide"
updated the code, no place is using GlideApp
fun ImageView.loadImg(imageUrl: String) {
// 3.8.0
// if (!TextUtils.isEmpty(imageUrl)) {
// Glide.clear(this)
//
// Glide.with(context).load(imageUrl)
// .diskCacheStrategy(DiskCacheStrategy.ALL)
// .placeholder(ColorDrawable(Color.LTGRAY))
// .into(this)
// }
///
// 4.+ code
var requestOptions : RequestOptions = RequestOptions()
.placeholder(ColorDrawable(Color.LTGRAY))
.diskCacheStrategy(DiskCacheStrategy.ALL)
if (!TextUtils.isEmpty(imageUrl)) {
Glide.with(context)
.setDefaultRequestOptions(requestOptions)
.asBitmap()
.load(imageUrl)
.into(this)
}
}
fun ImageView.clear() {
Glide.with(this.context).clear(this)
}
got crash at Glide.with()
java.lang.AbstractMethodError: abstract method "void com.bumptech.glide.module.RegistersComponents.registerComponents(android.content.Context, com.bumptech.glide.Glide, com.bumptech.glide.Registry)"
at com.bumptech.glide.Glide.initializeGlide(Glide.java:270)
at com.bumptech.glide.Glide.initializeGlide(Glide.java:223)
at com.bumptech.glide.Glide.checkAndInitializeGlide(Glide.java:184)
at com.bumptech.glide.Glide.get(Glide.java:168)
at com.bumptech.glide.Glide.getRetriever(Glide.java:689)
at com.bumptech.glide.Glide.with(Glide.java:716)
if adding the
#GlideModule
class DPAppGlideModule : AppGlideModule() {
override fun isManifestParsingEnabled(): Boolean {
return false
}
}
it will work, but since this is a library module so it should not have this one.
what might be the cause of AbstractMethodError: abstract method "void com.bumptech.glide.module.RegistersComponents.registerComponents(android.content.Context, com.bumptech.glide.Glide, com.bumptech.glide.Registry)"?
anything besides GlideApp should also be avoid?
turns out in this library module it has indirect dependency on someone who is using Glide3 and has Old GlideModule which does not impelenet the function required by the Glide 4.
Glide 4's module.registerComponents(applicationContext, glide, glide.registry); take 3 params, but Glide 3's has only two
for (com.bumptech.glide.module.GlideModule module : manifestModules) {
module.registerComponents(applicationContext, glide, glide.registry);
}
Related
I'm trying to run a Firebase Transaction under a suspended function in Kotlin and i see no documentation about it.
I'm using
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-play-services:1.5.2'
for coroutines with firebase (eg: setValue(*).await() ) but there seems to be no await function for runTransaction(*)
override suspend fun modifyProductStock(
product: ProductModel,
valueToModify: Long,
replace: Boolean
) {
CoroutineScope(Dispatchers.Main).launch {
val restaurantId = authRepository.restaurantId.value ?: throw Exception("No restaurant!")
val productId = product.id ?: throw Exception("No Product ID!")
val reference = FirebaseDatabase.getInstance().getReference("database/$restaurantId").child("products")
if (replace) {
reference.child(productId).child("stock").setValue(valueToModify).await()
} else {
reference.child(productId).child("stock")
.runTransaction(object : Transaction.Handler {
override fun doTransaction(p0: MutableData): Transaction.Result {
//any operation
return Transaction.success(p0)
}
override fun onComplete(p0: DatabaseError?, p1: Boolean, p2: DataSnapshot?) {
}
})
}
}
}
You could wrap it in suspendCoroutine:
val result: DataSnapshot? = suspendCoroutine { c ->
reference.child(productId).child("stock")
.runTransaction(object : Transaction.Handler {
override fun doTransaction(p0: MutableData): Transaction.Result {
//any operation
return Transaction.success(p0)
}
override fun onComplete(error: DatabaseError?, p1: Boolean, snapshot: DataSnapshot?) {
c.resume(snapshot)
}
})
}
suspendCoroutine
Obtains the current continuation instance inside suspend functions and suspends the currently running coroutine.
In this function both Continuation.resume and Continuation.resumeWithException can be used either synchronously in the same stack-frame where the suspension function is run or asynchronously later in the same thread or from a different thread of execution.
Given that the Kotlin example in the Firebase documentation on transactions uses the same callback style that you have, it seems indeed that there is no specific support for co-routines there.
It might be worth posting an issue on the Android SDK repo to get it added, or hear why it wasn't added.
I'm facing a OOP design problem ... My goal is to build a Improvement system.
It is really simple to understand, here is the code sample :
<?php
interface Improvement {
public function getGains();
public function isActivated();
}
// tagged "improvement"
class AImprovement implements Improvement {
public function getGains() {
return 1;
}
public function isActivated() {
return true;
}
}
// tagged "improvement"
class BImprovement implements Improvement {
private $statsCenter;
public function __construct(StatsCenter $statsCenter) {
$this->statsCenter = $statsCenter;
}
public function getGains() {
return 10;
}
public function isActivated() {
return $statsCenter->getStats()['totalGains'] > 10;
}
}
class ImprovementCenter {
private $improvements;
public function addImprovement(Improvement $improvement) {
$this->improvements[] = $improvement;
}
public funtion getGainsSum() {
$s = 0;
foreach ($this->improvements as $improvement) {
$s += $improvement->getGains();
}
return $s;
}
}
class StatsCenter {
private $improvementCenter;
public function __construct(ImprovementCenter $improvementCenter) {
$this->improvementCenter = $improvementCenter;
}
public function getStats() {
return [
'totalGains' => Money::toEUR($this->improvementCenter->getGainsSum())
];
}
}
We can create x implementations of Improvement interface. If we tag them with "improvement" they will be added to the definition of ImprovementCenter with addMethodCall by calling addImprovement.
So, ImprovementCenter has a clear dependency on all the "improvement" tagged services.
And for some reason BImprovement is enabled only if the gains in euros > 10. ( Don't ask me why ).
But we can clearly see a circular dependency : BImprovement -> StatsCenter -> ImprovementCenter -> BImprovement ...
Any ideas on how to solve it ? (I already found some solution but I need more ideas). The side goal is also to benefits lazy services loading of symfony2, ImprovementCenter must be created only if it is injected somewhere.
Thank you !
EDIT :
Here is one dirty solution that I found. First the main problem is that here I have an observer pattern with Improvements as Observers. The consequence is that ImprovementCenter (the subject) depends on all its observers, that is not the pattern goal.
Then I moved the dependencies: I have kind of an ObserverManager that depends on ImprovementCenter and all Improvents, the ObserverManager manually do $improvementCenter->addImprovement($improvement).
Now the $improvementCenter has no dependency on Improvements.
The problem is that I must initialise ObserverManager on each kernelRequest, without that trick the ImprovementCenter will not have any Improvements linked as observers.
This solution perfectly works, but it smells kind of bad .. ahah
Ideas ?
I'm using Thymeleaf.
This template:
<a th:href="#{/}">a</a>
produces this html:
a
This is what I'm expected.
I put ResourceUrlEncodingFilter bean to try ContentVersionStrategy in my WebMvcConfigurerAdapter extended class.
#Bean
public ResourceUrlEncodingFilter resourceUrlEncodingFilter() {
return new ResourceUrlEncodingFilter();
}
The produced html turned to:
a
The value of href is empty.
I hope href is "/" even if I put ResourceUrlEncodingFilter bean.
th:href="#{/a}" turns to href="/a" in both cases.
Did I do something wrong?
Thank you very much.
UPDATE:
This is my build.gradle
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'io.spring.gradle:dependency-management-plugin:0.5.1.RELEASE'
classpath("org.springframework.boot:spring-boot-gradle-plugin:1.2.3.RELEASE")
}
}
apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'spring-boot'
apply plugin: 'io.spring.dependency-management'
version = '1.0'
jar {
manifest {
attributes 'Implementation-Title': 'Gradle Quickstart', 'Implementation-Version': version
}
}
repositories {
mavenCentral()
}
dependencyManagement {
imports {
mavenBom 'io.spring.platform:platform-bom:1.1.2.RELEASE'
}
}
dependencies {
compile('org.webjars:bootstrap:3.3.1')
compile('org.webjars:knockout:3.2.0')
compile('org.webjars:momentjs:2.9.0')
compile('org.webjars:numeral-js:1.5.3-1')
compile('org.webjars:underscorejs:1.7.0-1')
compile('org.webjars:sugar:1.4.1')
compile('org.webjars:jqplot:1.0.8r1250')
compile('org.webjars:jquery-cookie:1.4.1-1')
compile("org.springframework.boot:spring-boot-starter-actuator")
compile("org.springframework.boot:spring-boot-starter-batch")
compile("org.springframework.boot:spring-boot-starter-data-jpa")
compile("org.springframework.boot:spring-boot-starter-security")
compile("org.springframework.boot:spring-boot-starter-web")
compile("org.springframework.boot:spring-boot-starter-tomcat")
compile("org.springframework.boot:spring-boot-starter-thymeleaf")
compile("org.springframework.boot:spring-boot-starter-test")
compile("org.springframework:spring-context-support") // this is for mail
compile('commons-codec:commons-codec')
compile("commons-io:commons-io")
compile('com.google.guava:guava')
compile('org.hibernate:hibernate-validator')
compile("com.sun.mail:javax.mail")
compile('mysql:mysql-connector-java')
compile("org.yaml:snakeyaml")
compile("org.apache.commons:commons-lang3:3.2")
compile('com.amazonaws:aws-java-sdk:1.9.4')
compile('net.sf.supercsv:super-csv:2.2.0')
compile('edu.vt.middleware:vt-password:3.1.2')
}
test {
//systemProperties 'property': 'value'
systemProperties 'spring.profiles.active': 'unittest'
systemProperties 'MAIL_PROP': 'mail.properties'
systemProperties 'user.timezone': 'UTC'
}
uploadArchives {
repositories {
flatDir {
dirs 'repos'
}
}
}
Thanks for this detailed explanation and the repro project!
This is actually a bug: see SPR-13241, to be fixed in Spring 4.1.8 and 4.2.0.
Spring Boot adds "/**" matcher for automatic configurations of static web resources locations.
The locations are /META-INF/resources/, /resources/, /static/ and /public/.
When you put below html in Thymeleaf template,
<a th:href="#{/}">a</a>
Below method in ResourceUrlProvider.java is called because of the matcher and get into for loop:
public final String getForLookupPath(String lookupPath) {
// -- omission --
for(String pattern : matchingPatterns) {
// -- omission --
String pathWithinMapping = getPathMatcher().extractPathWithinPattern(pattern, lookupPath);
String pathMapping = lookupPath.substring(0, lookupPath.indexOf(pathWithinMapping));
// -- omission --
String resolved = chain.resolveUrlPath(pathWithinMapping, handler.getLocations());
if (resolved == null) {
continue;
}
// -- omission --
return pathMapping + resolved;
}
// -- omission --
}
The argument, lookupPath is "/" by the "#{/}", Then:
The pathWithinMapping will be "".
The pathMapping will be "".
The resolved will be "".
So this method returns "" and the value is set to href="".
This is in my opinion, if the pathWithinMapping is "", to continue the for loop seems good. Calling chain.resolveUrlPath seems not good.
Thanks,
In Objective-C, I would normally use something like this:
static NSString *kViewTransformChanged = #"view transform changed";
// or
static const void *kViewTransformChanged = &kViewTransformChanged;
[clearContentView addObserver:self
forKeyPath:#"transform"
options:NSKeyValueObservingOptionNew
context:&kViewTransformChanged];
I have two overloaded methods to choose from to add an observer for KVO with the only difference being the context argument:
clearContentView.addObserver(observer: NSObject?, forKeyPath: String?, options: NSKeyValueObservingOptions, context: CMutableVoidPointer)
clearContentView.addObserver(observer: NSObject?, forKeyPath: String?, options: NSKeyValueObservingOptions, kvoContext: KVOContext)
With Swift not using pointers, I'm not sure how to dereference a pointer to use the first method.
If I create my own KVOContext constant for use with the second method, I wind up with it asking for this:
let test:KVOContext = KVOContext.fromVoidContext(context: CMutableVoidPointer)
EDIT: What is the difference between CMutableVoidPointer and KVOContext? Can someone give me an example how how to use them both and when I would use one over the other?
EDIT #2: A dev at Apple just posted this to the forums: KVOContext is going away; using a global reference as your context is the way to go right now.
There is now a technique officially recommended in the documentation, which is to create a private mutable variable and use its address as the context.
(Updated for Swift 3 on 2017-01-09)
// Set up non-zero-sized storage. We don't intend to mutate this variable,
// but it needs to be `var` so we can pass its address in as UnsafeMutablePointer.
private static var myContext = 0
// NOTE: `static` is not necessary if you want it to be a global variable
observee.addObserver(self, forKeyPath: …, options: [], context: &MyClass.myContext)
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey: Any]?, context: UnsafeMutableRawPointer?) {
if context == &myContext {
…
}
else {
super.observeValue(forKeyPath: keyPath, of: object, change: change, context: context)
}
}
Now that KVOContext is gone in Xcode 6 beta 3, you can do the following. Define a global (i.e. not a class property) like so:
let myContext = UnsafePointer<()>()
Add an observer:
observee.addObserver(observer, forKeyPath: …, options: nil, context: myContext)
In the observer:
override func observeValueForKeyPath(keyPath: String!, ofObject object: AnyObject!, change: [NSObject : AnyObject]!, context: UnsafePointer<()>) {
if context == myContext {
…
} else {
super.observeValueForKeyPath(keyPath, ofObject: object, change: change, context: context)
}
}
Swift 4 - observing contentSize change on UITableViewController popover to fix incorrect size
I had been searching for an answer to change to a block based KVO because I was getting a swiftlint warning and it took me piecing quite a few different answers together to get to the right solution. Swiftlint warning:
Block Based KVO Violation: Prefer the new block based KVO API with keypaths when using Swift 3.2 or later. (block_based_kvo).
My use case was to present a popover controller attached to a button in a Nav bar in a view controller and then resize the popover once it's showing - otherwise it would be too big and not fitting the contents of the popover. The popover itself was a UITableViewController that contained static cells, and it was displayed via a Storyboard segue with style popover.
To setup the block based observer, you need the following code inside your popover UITableViewController:
// class level variable to store the statusObserver
private var statusObserver: NSKeyValueObservation?
// Create the observer inside viewWillAppear
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
statusObserver = tableView.observe(\UITableView.contentSize,
changeHandler: { [ weak self ] (theTableView, _) in self?.popoverPresentationController?.presentedViewController.preferredContentSize = theTableView.contentSize
})
}
// Don't forget to remove the observer when the popover is dismissed.
override func viewDidDisappear(_ animated: Bool) {
if let observer = statusObserver {
observer.invalidate()
statusObserver = nil
}
super.viewDidDisappear(animated)
}
I didn't need the previous value when the observer was triggered, so left out the options: [.new, .old] when creating the observer.
Update for Swift 4
Context is not required for block-based observer function and existing #keyPath() syntax is replaced with smart keypath to achieve swift type safety.
class EventOvserverDemo {
var statusObserver:NSKeyValueObservation?
var objectToObserve:UIView?
func registerAddObserver() -> Void {
statusObserver = objectToObserve?.observe(\UIView.tag, options: [.new, .old], changeHandler: {[weak self] (player, change) in
if let tag = change.newValue {
// observed changed value and do the task here on change.
}
})
}
func unregisterObserver() -> Void {
if let sObserver = statusObserver {
sObserver.invalidate()
statusObserver = nil
}
}
}
Complete example using Swift:
//
// AppDelegate.swift
// Photos-MediaFramework-swift
//
// Created by Phurg on 11/11/16.
//
// Displays URLs for all photos in Photos Library
//
// #see http://stackoverflow.com/questions/30144547/programmatic-access-to-the-photos-library-on-mac-os-x-photokit-photos-framewo
//
import Cocoa
import MediaLibrary
// For KVO: https://developer.apple.com/library/content/documentation/Swift/Conceptual/BuildingCocoaApps/AdoptingCocoaDesignPatterns.html#//apple_ref/doc/uid/TP40014216-CH7-ID12
private var mediaLibraryLoaded = 1
private var rootMediaGroupLoaded = 2
private var mediaObjectsLoaded = 3
#NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {
#IBOutlet weak var window: NSWindow!
var mediaLibrary : MLMediaLibrary!
var allPhotosAlbum : MLMediaGroup!
func applicationDidFinishLaunching(_ aNotification: Notification) {
NSLog("applicationDidFinishLaunching:");
let options:[String:Any] = [
MLMediaLoadSourceTypesKey: MLMediaSourceType.image.rawValue, // Can't be Swift enum
MLMediaLoadIncludeSourcesKey: [MLMediaSourcePhotosIdentifier], // Array
]
self.mediaLibrary = MLMediaLibrary(options:options)
NSLog("applicationDidFinishLaunching: mediaLibrary=%#", self.mediaLibrary);
self.mediaLibrary.addObserver(self, forKeyPath:"mediaSources", options:[], context:&mediaLibraryLoaded)
NSLog("applicationDidFinishLaunching: added mediaSources observer");
// Force load
self.mediaLibrary.mediaSources?[MLMediaSourcePhotosIdentifier]
NSLog("applicationDidFinishLaunching: done");
}
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
NSLog("observeValue: keyPath=%#", keyPath!)
let mediaSource:MLMediaSource = self.mediaLibrary.mediaSources![MLMediaSourcePhotosIdentifier]!
if (context == &mediaLibraryLoaded) {
NSLog("observeValue: mediaLibraryLoaded")
mediaSource.addObserver(self, forKeyPath:"rootMediaGroup", options:[], context:&rootMediaGroupLoaded)
// Force load
mediaSource.rootMediaGroup
} else if (context == &rootMediaGroupLoaded) {
NSLog("observeValue: rootMediaGroupLoaded")
let albums:MLMediaGroup = mediaSource.mediaGroup(forIdentifier:"TopLevelAlbums")!
for album in albums.childGroups! {
let albumIdentifier:String = album.attributes["identifier"] as! String
if (albumIdentifier == "allPhotosAlbum") {
self.allPhotosAlbum = album
album.addObserver(self, forKeyPath:"mediaObjects", options:[], context:&mediaObjectsLoaded)
// Force load
album.mediaObjects
}
}
} else if (context == &mediaObjectsLoaded) {
NSLog("observeValue: mediaObjectsLoaded")
let mediaObjects:[MLMediaObject] = self.allPhotosAlbum.mediaObjects!
for mediaObject in mediaObjects {
let url:URL? = mediaObject.url
// URL does not extend NSObject, so can't be passed to NSLog; use string interpolation
NSLog("%#", "\(url)")
}
}
}
}
Any idea how to do what the title says? Only thing I found was on the original Velocity site, and I don't think
ve.setProperty( RuntimeConstants.RUNTIME_LOG_LOGSYSTEM_CLASS,
"org.apache.velocity.runtime.log.Log4JLogChute" );
ve.setProperty("runtime.log.logsystem.log4j.logger",
LOGGER_NAME);
will work wonderfully well on .NET. I am using log4net, which should make it quite easy, but the documentation on NVelocity is really a mess.
Implement NVelocity.Runtime.Log.ILogSystem (you could write a simple implementation that bridges to log4net) and set this impl type in the property RuntimeConstants.RUNTIME_LOG_LOGSYSTEM_CLASS
How I got this information:
Get the code.
Search for "log" in the codebase
Discover the classes in NVelocity.Runtime.Log.
Read those classes' source, they're very simple and thoroughly documented.
Update:
Currently, NVelocity does not support logging. The initializeLogger() and Log() methods in RuntimeInstance Class are commented out.
If you need to log, uncomment the two methods, add a private ILogSystem logSystem; property
Here's our on-the-fly implementation:
public class RuntimeInstance : IRuntimeServices
{
private ILogSystem logSystem;
...
...
private void initializeLogger()
{
logSystem = LogManager.CreateLogSystem(this);
}
...
...
private void Log(LogLevel level, Object message)
{
String output = message.ToString();
logSystem.LogVelocityMessage(level, output);
}
...
}
Then, we implemented ILogSystem for log4net
using log4net;
using NVelocity.Runtime;
using NVelocity.Runtime.Log;
namespace Services.Templates
{
public class Log4NetILogSystem : ILogSystem
{
private readonly ILog _log;
public Log4NetILogSystem(ILog log )
{
_log = log;
}
public void Init(IRuntimeServices rs)
{
}
public void LogVelocityMessage(LogLevel level, string message)
{
switch (level)
{
case LogLevel.Debug:
_log.Debug(message);
break;
case LogLevel.Info:
_log.Info(message);
break;
case LogLevel.Warn:
_log.Warn(message);
break;
case LogLevel.Error:
_log.Error(message);
break;
}
}
}
}
Then, when creating the engine:
var engine = new VelocityEngine();
var props = new ExtendedProperties();
props.SetProperty(RuntimeConstants.RUNTIME_LOG_LOGSYSTEM,
new Log4NetILogSystem(LogManager.GetLogger(typeof(NVelocityEngine))));
engine.Init(props);