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Example 1 with NewExpr

use of org.hotswap.agent.javassist.expr.NewExpr in project HotswapAgent by HotswapProjects.

the class ViewConfigTransformer method patchViewConfigExtension.

/**
 * Register DeltaspikePlugin and add reinitialization method to RepositoryComponent
 *
 * @param ctClass
 * @param classPool the class pool
 * @throws CannotCompileException the cannot compile exception
 * @throws NotFoundException the not found exception
 */
@OnClassLoadEvent(classNameRegexp = "org.apache.deltaspike.jsf.impl.config.view.ViewConfigExtension")
public static void patchViewConfigExtension(CtClass ctClass, ClassPool classPool) throws CannotCompileException, NotFoundException {
    CtMethod init = ctClass.getDeclaredMethod("init");
    init.insertAfter("{" + "if (this.isActivated) {" + PluginManagerInvoker.buildInitializePlugin(DeltaSpikePlugin.class) + "}" + "}");
    LOGGER.debug("org.apache.deltaspike.jsf.impl.config.view.ViewConfigExtension enhanced with plugin initialization.");
    CtClass viewConfigResProxyClass = classPool.get("org.hotswap.agent.plugin.deltaspike.jsf.ViewConfigResolverProxy");
    CtField viewConfigResProxyField = new CtField(viewConfigResProxyClass, VIEW_CONFIG_RESOLVER_PROXY_FIELD, ctClass);
    ctClass.addField(viewConfigResProxyField);
    CtMethod generateProxyClassMethod = ctClass.getDeclaredMethod("transformMetaDataTree");
    generateProxyClassMethod.instrument(new ExprEditor() {

        public void edit(NewExpr e) throws CannotCompileException {
            if (e.getClassName().equals("org.apache.deltaspike.jsf.impl.config.view.DefaultViewConfigResolver"))
                e.replace("{ " + "java.lang.Object _resolver = new org.apache.deltaspike.jsf.impl.config.view.DefaultViewConfigResolver($$); " + "if (this." + VIEW_CONFIG_RESOLVER_PROXY_FIELD + "==null) {" + "this." + VIEW_CONFIG_RESOLVER_PROXY_FIELD + "=new org.hotswap.agent.plugin.deltaspike.jsf.ViewConfigResolverProxy();" + "}" + "this." + VIEW_CONFIG_RESOLVER_PROXY_FIELD + ".setViewConfigResolver(_resolver);" + "java.util.List _list = org.hotswap.agent.plugin.deltaspike.jsf.ViewConfigResolverUtils.findViewConfigRootClasses(this.rootViewConfigNode);" + PluginManagerInvoker.buildCallPluginMethod(DeltaSpikePlugin.class, "registerViewConfigRootClasses", "this", "java.lang.Object", "_list", "java.util.List") + "   $_ = this." + VIEW_CONFIG_RESOLVER_PROXY_FIELD + ";" + "}");
        }
    });
}
Also used : CtClass(org.hotswap.agent.javassist.CtClass) CtField(org.hotswap.agent.javassist.CtField) ExprEditor(org.hotswap.agent.javassist.expr.ExprEditor) NewExpr(org.hotswap.agent.javassist.expr.NewExpr) CannotCompileException(org.hotswap.agent.javassist.CannotCompileException) CtMethod(org.hotswap.agent.javassist.CtMethod) OnClassLoadEvent(org.hotswap.agent.annotation.OnClassLoadEvent)

Aggregations

OnClassLoadEvent (org.hotswap.agent.annotation.OnClassLoadEvent)1 CannotCompileException (org.hotswap.agent.javassist.CannotCompileException)1 CtClass (org.hotswap.agent.javassist.CtClass)1 CtField (org.hotswap.agent.javassist.CtField)1 CtMethod (org.hotswap.agent.javassist.CtMethod)1 ExprEditor (org.hotswap.agent.javassist.expr.ExprEditor)1 NewExpr (org.hotswap.agent.javassist.expr.NewExpr)1