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PONeed help in getting attributes for mobile device in Adobe CQ 5 Mobile Application Development
 

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  1. PONeed help in getting attributes for mobile device in Adobe CQ 5 Mobile Application Development
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    <p>I am new to CQ 5 Mobile Application Development what I want to achieve is, When a mobile device send the request to the page it captures the attributes of mobile like mobile browser, mobile browser version, mobile OS and mobile OS version. I want to LOG this information and in later stage use this to categorize them in different Device Group and render different components in different device groups.</p> <p><strong>Note I have already went through some of these links</strong> <a href="http://dev.day.com/docs/en/cq/5-5/developing/mobile.html" rel="nofollow">CQ5 Mobile Development Docs</a></p> <p><a href="http://www.cognifide.com/blogs/cq/adobe-cq-5-5-mobile-improvements/" rel="nofollow">http://www.cognifide.com/blogs/cq/adobe-cq-5-5-mobile-improvements/</a> <a href="http://wurfl.sourceforge.net/help_doc.php" rel="nofollow">http://wurfl.sourceforge.net/help_doc.php</a></p> <p>I have tried this code which throws Null Pointer Exception, since device has null value. Correct me if I am doing wrong somewhere</p> <pre><code>SlingHttpServletRequest slingRequest = this.request.getSlingRequest(); Device device = slingRequest.adaptTo(Device.class); Map&lt;String, String&gt; deviceAttributes = device.getAttributes(); LOG.info("Request is sent from Device with OS"+deviceAttributes.get("device_os")); </code></pre> <p>Here is the way I am testing this code, whenever a request is sent to the page which has this component which logs the attributes of the mobile device from one of the emulator, I check my LOG Files that </p> <p>Please help me out if I am going wrong in the code or method to get the mobile device's attributes. Please let me know if you need more details on this.</p> <p>Regards, Yash</p> <p>Hi Here is the Stack Trace for this :</p> <pre><code>Caused by: org.apache.sling.api.SlingException: An exception occurred processing JSP page /apps/companyname/components/content/mobilebreadcrum/mobilebreadcrum.jsp at line 5 at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspExceptionInternal(JspServletWrapper.java:571) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:496) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:448) at org.apache.sling.scripting.jsp.JspServletWrapperAdapter.service(JspServletWrapperAdapter.java:59) at org.apache.sling.scripting.jsp.JspScriptEngineFactory.callJsp(JspScriptEngineFactory.java:173) at org.apache.sling.scripting.jsp.JspScriptEngineFactory.access$100(JspScriptEngineFactory.java:84) at org.apache.sling.scripting.jsp.JspScriptEngineFactory$JspScriptEngine.eval(JspScriptEngineFactory.java:388) at org.apache.sling.scripting.core.impl.DefaultSlingScript.call(DefaultSlingScript.java:358) ... 147 more Caused by: javax.el.ELException: Error reading 'modelName' on type com.companyname.www.components.content.mobilebreadcrumb.MobileBreadCrum at javax.el.BeanELResolver.getValue(BeanELResolver.java:66) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53) at org.apache.el.parser.AstValue.getValue(AstValue.java:97) at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186) at org.apache.sling.scripting.jsp.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:923) at org.apache.jsp.apps.companyname.components.content.mobilebreadcrum.mobilebreadcrum_jsp._jspService(mobilebreadcrum_jsp.java:160) at org.apache.sling.scripting.jsp.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:802) at org.apache.sling.scripting.jsp.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419) ... 152 more Caused by: java.lang.NullPointerException at com.companyname.www.components.content.mobilebreadcrumb.MobileBreadCrum.getModelName(MobileBreadCrum.java:35) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at javax.el.BeanELResolver.getValue(BeanELResolver.java:62) ... 160 more </code></pre> <p>The JSP Code is :</p> <pre><code>&lt;%@include file="/apps/companyname/components/global.jsp"%&gt;&lt;ct:component className="com.companyname.www.components.content.mobilebreadcrumb.MobileBreadCrum" name="mobilebreadcrum" /&gt;${mobilebreadcrum.modelName} </code></pre> <p>The Java Code is:</p> <pre><code> public String getModelName() { SlingHttpServletRequest slingRequest = this.request.getSlingRequest(); String resourceType = slingRequest.getResource().getResourceType(); String resourceSuperType = slingRequest.getResource().getResourceSuperType(); LOG.info("RESOURCE TYPE:"+resourceType); LOG.info("RESOURCE SUPER TYPE:"+resourceSuperType); Device device = request.getCurrentPage().adaptTo(Device.class); device.getAttributes(); return modelName; } </code></pre> <p>Please let me know if you want anything else</p> <p>Regards, Yash</p>
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