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POHow to access to the returning Object instance of an advised method
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  1. POHow to access to the returning Object instance of an advised method
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    copied!<p>I'm using spring AOP to advice my services methods and especially ones returning an object, I want to have access to that object during advice processing.</p> <p>My configuration is working fine, no problems with that.</p> <p>Here's the signature of the adviced method, method returns a new instance based on data within method argument, so argument is unusable</p> <pre><code>@Traceable(ETraceableMessages.SAUVER_APPORTEUR) public ElementNiveauUn save(ElementNiveauUn apporteur) throws ATPBusinessException { String identifiant = instanceService.sauverInstance(null, apporteur); List&lt;String&gt; extensions = new ArrayList&lt;String&gt;(); extensions.add(ELEMENTSCONTENUS); extensions.add(TYPEELEMENT); extensions.add(VERSIONING); extensions.add(PARAMETRAGES); extensions.add(PARAMETRAGES + "." + PARAMETRES); return (ElementNiveauUn ) instanceService.lireInstanceParId(identifiant, extensions.toArray(new String[]{})); } </code></pre> <p>Here's what I'm wondering to do</p> <pre><code>@Around(value = "execution(elementNiveauUn fr.generali.nova.atp.service.metier.impl.*.*(..)) &amp;&amp; @annotation(traceable) &amp;&amp; args(element)", argNames = "element,traceable") public void serviceLayerTraceAdviceBasedElementInstanceAfter2(final ProceedingJoinPoint pjp, final ElementNiveauUn element, final Traceable traceable) throws SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException { // current user String currentUserId = findCurrentUserId(); // wether user is found or not boolean isUserFound = StringUtils.isBlank(currentUserId); // retrieve the oid of the returning type MethodSignature signature = (MethodSignature ) pjp.getSignature(); Class&lt;ElementNiveauUn&gt; returnType = signature.getReturnType(); Method[] methods = returnType.getMethods(); Method method = returnType.getMethod("getOid", (Class&lt; ? &gt;[] ) null); String oid = (String ) method.invoke(null, (Object[] ) null); // log to database simpleTraceService.trace(element.getOid(), element.getVersioning().toString(), traceable.value(), isUserFound ? UTILISATEUR_NON_TROUVE : currentUserId); } </code></pre> <p>My problem is that this line of code</p> <pre><code>Class&lt;ElementNiveauUn&gt; returnType = signature.getReturnType(); </code></pre> <p>permits me to have access to the returning type not to the instance</p>
 

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