[windup-dev] Bootstrapping in tests

[Pete Muir]

Create a class for each bootstrap phase you want. Create an ordered list of the phase classes. Iterate over the list. Emit a CDI event for each phase, and have anything that needs to execute in that phase observe that event and start. Observe the built in @Initialized ApplicationContext event to kick off your bootstrap class.

On 3 Sep 2014, at 23:38, Ondrej Zizka <ozizka at redhat.com> wrote:

> Hi all,
> 
> I've hit a problem with bootstrapping.
> The tests grab the parts of windup through CDI and that initializes them 
> with defaults.
> 
> For example, JavaClassTest#testIterationVariableResolving():
> 
> The context initializes at the first line.
> When processor.execute() is called, the graph was somehow reused before, 
> but that's just because of different code in all the execute() methods.
> 
> I could simply not set the output dir to WindupProcessorConfig, but the 
> output is not just where graph is.
> I could also check if the graph already has been initialized, but 1) 
> that would make it nonconfigurable, 2) it would be nonsystemic - 
> checking in init code if a part of application being initialized was, by 
> accident, initialized somewhere else.
> 
> My suggestion is that we should have kind of bootstrap API for the 
> graph, similar to WindupProcessor - with a config class, and initialize 
> it from that.
> I don't know how to combine that with CDI, so the tests would have to 
> use that API instead of CDI.
> That's something I have suggested before, and was rejected, perhaps I 
> didn't explain it clearly back then.
> 
> I can't think up any other solution that I would not consider overkill, 
> like, some CDI providers of the config.
> Any suggestions?
> 
> Ondra
> 
> -------------------------------------------------------------------------------
> Test set: org.jboss.windup.rules.java.JavaClassTest
> -------------------------------------------------------------------------------
> Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 28.678 
> sec <<< FAILURE! - in org.jboss.windup.rules.java.JavaClassTest
> testIterationVariableResolving(org.jboss.windup.rules.java.JavaClassTest) Time 
> elapsed: 5.346 sec  <<< ERROR!
> org.jboss.windup.util.exception.WindupException_$$_javassist_9c4de665-baa6-4904-a4d3-37530e41e5a0: 
> Error, attempting to set graph directory to: 
> "/home/ondra/work/Migration/Windup/rules/app/java/target/windup_5ba22a23-c85f-49f3-b01c-39fda0eb1faa/graph", 
> but the graph has already been initialized (with graph folder: 
> "/home/ondra/work/Migration/Windup/rules/app/java/target/windupgraph_1cfccd03-8f33-43a4-a305-99fdd38bc172"! 
> To change this, you must first disconnect from the graph!
>     at 
> org.jboss.windup.graph.GraphContextImpl.setGraphDirectory(GraphContextImpl.java:101)
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.lang.reflect.Method.invoke(Method.java:606)
>     at 
> org.jboss.weld.bean.proxy.AbstractBeanInstance.invoke(AbstractBeanInstance.java:38)
>     at 
> org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:100)
>     at 
> org.jboss.weld.proxies.GraphContext$2110577583$Proxy$_$$_WeldClientProxy.setGraphDirectory(Unknown 
> Source)
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.lang.reflect.Method.invoke(Method.java:606)
>     at 
> org.jboss.forge.furnace.proxy.ClassLoaderInterceptor$1.call(ClassLoaderInterceptor.java:87)
>     at 
> org.jboss.forge.furnace.util.ClassLoaders.executeIn(ClassLoaders.java:40)
>     at 
> org.jboss.forge.furnace.proxy.ClassLoaderInterceptor.invoke(ClassLoaderInterceptor.java:103)
>     at 
> org.jboss.windup.graph.GraphContext_$$_javassist_328a8426-f2d1-4f83-9490-e69b40a9c068.setGraphDirectory(GraphContext_$$_javassist_328a8426-f2d1-4f83-9490-e69b40a9c068.java)
>     at 
> org.jboss.windup.exec.WindupProcessorImpl.execute(WindupProcessorImpl.java:35)
>     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>     at java.lang.reflect.Method.invoke(Method.java:606)
>     at 
> org.jboss.forge.furnace.proxy.ClassLoaderInterceptor$1.call(ClassLoaderInterceptor.java:87)
>     at 
> org.jboss.forge.furnace.util.ClassLoaders.executeIn(ClassLoaders.java:40)
>     at 
> org.jboss.forge.furnace.proxy.ClassLoaderInterceptor.invoke(ClassLoaderInterceptor.java:103)
>     at 
> org.jboss.windup.exec.WindupProcessorImpl_$$_javassist_5bf57ffb-10b3-495a-81bb-f630878e67e5.execute(WindupProcessorImpl_$$_javassist_5bf57ffb-10b3-495a-81bb-f630878e67e5.java)
>     at 
> org.jboss.windup.rules.java.JavaClassTest.testIterationVariableResolving(JavaClassTest.java:118)
> 
> 
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