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<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Hi Gustavo and <b>thank</b> you, your solution is indeed sorting things out.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">Alessandro<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span lang="EN-US"> infinispan-dev-bounces@lists.jboss.org [mailto:infinispan-dev-bounces@lists.jboss.org]
<b>On Behalf Of </b>Gustavo Fernandes<br>
<b>Sent:</b> August 30, 2017 23:35<br>
<b>To:</b> infinispan -Dev List <infinispan-dev@lists.jboss.org><br>
<b>Subject:</b> Re: [infinispan-dev] infinispan cache retrieval - byte[]<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hi Alessandro, this kind of question is better suited for the forums [1], since this list if for development related discussions.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">But since we're here, regarding your question:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">What's probably happening is that since you are creating a cache inside the servlet from the cache manager that is also used by the Infinispan server, <o:p></o:p></p>
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<p class="MsoNormal">this cache is internally being created with an encoding scheme suitable to used for remote clients, meaning storage will be POJO but reads/writes will <o:p></o:p></p>
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<p class="MsoNormal">be done using byte[].<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">In Infinispan 9.1.0 you can choose the encoding to read and write from a particular cache: so in your case, from you servlet, you can specify that you don't want <o:p></o:p></p>
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<p class="MsoNormal">any encoding by wrapping your cache with:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Cache c = cache.getAdvancedCache().withEncoding(IdentityEncoder.class)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">[1] <a href="http://infinispan.org/community/" target="_blank">http://infinispan.org/community/</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Wed, Aug 30, 2017 at 6:16 PM, Alessandro Vaccarezza <<a href="mailto:avaccarezza@c2b2.co.uk" target="_blank">avaccarezza@c2b2.co.uk</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi guys,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">we ar facing an issue since quite a long time and can't come up with a solution.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Our simple application is deployed on a wildfly instance and make use of a local infinispan data store (infinispan-9.1.0.Final).<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Wildfly resides on a CentOS 6.8 instance, Java version is 1.8.0_112.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">We implemented a very basic servlet and registered as a listener. Within this servlet we use an org.infinispan.manager.EmbeddedCacheManager to retrieve an
<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">existing cache and add values to it.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Compatibility mode is on.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">The values added to the cache are instance of a simple Java POJO.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">When we try to retrieve what we just added, within the same servlet, we get a byte array, no way to retrieve the original POJO.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">When we force the cast we get the obvious:<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b>java.lang.ClassCastException: [B cannot be cast to com.my.pojo.SamplePOJO
</b><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Servlet:
<a href="https://gist.github.com/anonymous/e8752cc8457301c2c70b3255e5c3bbc5" target="_blank">
https://gist.github.com/anonymous/e8752cc8457301c2c70b3255e5c3bbc5</a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">POJO:
<a href="https://gist.github.com/anonymous/f35900875500a4bd6b4bb3b0cf73a363" target="_blank">
https://gist.github.com/anonymous/f35900875500a4bd6b4bb3b0cf73a363</a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Infinispan config file:
<a href="https://gist.github.com/anonymous/b8482595f6b86ecc5642cceb6a99ad5e" target="_blank">
https://gist.github.com/anonymous/b8482595f6b86ecc5642cceb6a99ad5e</a><o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Retrieving the cache via Hot Rod client works fine; also, if compatibility mode is turned off everything works fine as well.<o:p></o:p></p>
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<p class="MsoNormal"><br>
_______________________________________________<br>
infinispan-dev mailing list<br>
<a href="mailto:infinispan-dev@lists.jboss.org">infinispan-dev@lists.jboss.org</a><br>
<a href="https://lists.jboss.org/mailman/listinfo/infinispan-dev" target="_blank">https://lists.jboss.org/mailman/listinfo/infinispan-dev</a><o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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