serviceloader

问题 I am very new to java and android development and to learn I am trying to start with an application to gather statistics and information like munin does. I am trying to be able to load "plugins" in my application. These plugins are already in the application but I don't want to have to invoke them all separately, but be able to iterate over them. I was trying to use serviceloader but could never get the META-INF/services into my apk. So I am wondering if it is possible to use serviceloader on

问题 I am very new to Java (coming from C# .NET background). Trying to create an "expansion/IoC" style architecture via a combination of Google Guice and ServiceLoader, but can't seem to get the ServiceLoader part working running Java 1.7.0_75 and IntelliJ IDEA 14. I have a module within my project which is effectively a base class library called ViProJ.Bcl that contains an interface called com.vipro.bcl.SimplePluginLoader. I have another module called ViProJ.TestModules which contains a single

问题 I have a multi-module maven project which is making use of the JPMS features. The consumer module is not loading the implementations present in the provider module. Here's the maven project structure: ServiceLoaderExample ├── consumer ├── distribution ├── provider ├── service The interface TestService is defined in the "service" module. The implementation is TestServiceImpl which is defined in the "provider" module. And the main() method in the "consumer" module uses the ServiceLoader API to

问题 I have an OSGi environment running some bundles, one of them uses Service Bus API (Azure Java SDK v 0.4.4) and there are some errors after I reload my OSGi environment. The workflow is this: Initialize the JVM and the OSGi framework Bundles are loaded and started Service Bus bundle creates a Configuration using "ServiceBusConfiguration.configureWithWrapAuthentication(v,w,x,y,z)" call and everything runs smoothly I programmatically restart the OSGi framework and then all bundles are loaded and

问题 I am trying to find out if there is a Spring analogue of the ServiceLoader class which is part of the standard SDK's API. If there is such a class how is it used? Please advise! 回答1: Assume SpringFactoriesLoader is for you. From its JavaDocs: /* * General purpose factory loading mechanism for internal use within the framework. * * <p>The {@code SpringFactoriesLoader} loads and instantiates factories of a given type * from "META-INF/spring.factories" files. The file should be in {@link

问题 I'm building a MVC PHP framework and I wonder which are the best practices to load what I need in my classes, be it other classes or plain configuration. Till today I've used singletons, registry and lately a dependency injection container. While many people claim that DI is the way to go, it seems to me like it justs moves the problem of coupling between components into another place. Singletons introduce global state, registry introduces tight coupling and DI introduces... well, lots of

问题 This is more a general question by example: I'm using xstream and woodstox, woodstox comes with a service provider for javax.xml.stream.XMLOutputFactory in woodstox jar registering com.ctc.wstx.stax.WstxOutputFactory. I want to provide my own javax.xml.stream.XMLOutputFactory and still have woodstox jar in the classpath. I know I can provide my own with the system property javax.xml.stream.XMLOutputFactory , but I'm trying to take off the hassle from our dev ops team and do it with a service

问题 Situation I'm developing an application that uses Java's URLClassLoader and ServiceLoader to load jar files. Inside these jar files is the provider that implements my interface. The folder structure is as described in this post by oracle meaning that: The interface is in the same directory as the class that implements the interface in the plugin (com.x.projectname.plugin.IInterface.java). In the plugin, both the interface and the class that implements it are in the com.x.projectname.plugin

问题 In my application i'm using ServiceLoader to load modules(classes from .jar file) with different ClassLoaders in order to completely unload them when not needed from the context of the application and from the JVM itself. I know maybe is not a common topic "unload classes from JVM", there are some conditions for that to happen, so i am making the necessary effort. To make sure if all is working like expected i'm tracing the load and unload of classes with -XX:+TraceClassLoading and -XX:

问题 Have been trying this since few days and can't get it working! I am trying to build a pluggable java application where I can run it from command line and provide plugins (jars) in a separated folder. It seems the ServiceLoader would fit my requirement but I think I need a special case where the jars are not part of the classpath whereas they are stored in a different location, and for this reason I would need to use a ClassLoder pointing its url to this file system path. One of the plugin i