Class Cast exception on custom component

[alasdair009]

I have created a custom component to show the contents of a document on a page however when dropping the component into the page via the channel manager I get the following exception:

n.b. I have replaced the company name in class names as "companyname"

[INFO] [talledLocalContainer] 06.12.2016 08:45:25 WARN  http-nio-8080-exec-1 [AbstractBaseOrderableValve.handleComponentExceptions:299] Component exception(s) found in page request, 'Request{ method='GET', scheme='http', host='localhost:8080', requestURI='/site/_cmsinternal/', queryString='_hn:type=component-rendering&_hn:ref=r3_r1'}'.

 

[INFO] [talledLocalContainer] 06.12.2016 08:45:25 WARN  http-nio-8080-exec-1 [DefaultPageErrorHandler.logWarningsForEachComponentExceptions:51] Component exception on com.companyname.web.components.CopySectionComponent : java.lang.ClassCastException: org.hippoecm.hst.content.beans.standard.HippoFolder cannot be cast to com.companyname.web.beans.CopySection  

[INFO] [talledLocalContainer] 06.12.2016 08:45:25 WARN  http-nio-8080-exec-1 [DefaultPageErrorHandler.logWarningsForEachComponentExceptions:51] Component exception on com.companyname.web.components.CopySectionComponent : java.lang.ClassCastException: org.hippoecm.hst.content.beans.standard.HippoFolder cannot be cast to com.companyname.web.beans.CopySection

Being a front-end developer I am struggling on this. Java code for the class below:

package com.companyname.web.components;

import com. companyname.web.beans.CopySection;

import com. companyname.web.interfaces.CopySectionParamsInfo;

import org.hippoecm.hst.component.support.bean.BaseHstComponent;

import org.hippoecm.hst.core.component.HstComponentException;

import org.hippoecm.hst.core.component.HstRequest;

import org.hippoecm.hst.core.component.HstResponse;

import org.hippoecm.hst.core.parameters.ParametersInfo;

import org.onehippo.cms7.essentials.components.CommonComponent;

/**

 * Created by alasdair_macrae on 05/12/16.

 */

@ParametersInfo(type = CopySectionParamsInfo.class)

public class CopySectionComponent extends BaseHstComponent {

    @Override

    public void doBeforeRender(final HstRequest request, final HstResponse response) throws HstComponentException {

        CopySectionParamsInfo info = getComponentParametersInfo(request);

        // info may be null if this component has just been dragged in, without setting this value


        if (info != null) {

           CopySection document = (CopySection) CommonComponent.getScopeBean(info.getDocument());

            request.setAttribute("document", document);

        }

    }

}

package com.companyname.web.interfaces;

import org.hippoecm.hst.core.parameters.DocumentLink;

import org.hippoecm.hst.core.parameters.Parameter;

/**

 * Created by alasdair_macrae on 05/12/16.

 */

public interface CopySectionParamsInfo {

    /*Allows a component that drops WYSIWYG content into a page*/

    String DOCUMENT_TYPE = "corecms:copysection";

    String DOC_LINK_NAME = "Linked Document";

    String DOC_NAME = "document";

    @DocumentLink(allowCreation = true, docType = DOCUMENT_TYPE)

    @Parameter(description = DOC_LINK_NAME, displayName = DOC_LINK_NAME, name = DOC_NAME, required = true)

    String getDocument();

}

[alasdair009]

Hippo bean code here:

package com.companyname.web.beans;

import org.hippoecm.hst.content.beans.Node;

import org.hippoecm.hst.content.beans.standard.HippoHtml;

import org.onehippo.cms7.essentials.dashboard.annotations.HippoEssentialsGenerated;

@HippoEssentialsGenerated(internalName = "corecms:copysection")

@Node(jcrType = "corecms:copysection")

public class CopySection extends BaseDocument {

    @HippoEssentialsGenerated(internalName = "corecms:copy")

    public HippoHtml getCopy() {

        return getHippoHtml("corecms:copy");

    }

}

 

[Bert Leunis]

On Tue, Dec 6, 2016 at 9:56 AM, 'alasdair009' via Hippo Community <hippo-c...@googlegroups.com> wrote:

if (info != null)

If you change this line to the one below you will get rid of the exception. The "document" that is configured turns out to be a folder and not a CopySection or: node of type corecms:copysection

if (info !=null && info.getDocument() instance of CopySection)

With kind regards,

Bert Leunis

[alasdair009]

Hi Bert,

Inconvertible types; cannot cast 'java.lang.Strring' to 'com.companyname.web.beans.CopySection'

(Sorry front end developer fail I am sure) :(

[marijan milicevic]

Hi,

I guess typesafe version should be used here:

CopySection document = getHippoBeanForPath(info.getDocument(), CopySection.class);

request.setAttribute("document", document);

I don't think null check for info variable is actually needed

cheers

marijan

 

With kind regards,

Bert Leunis

--
Hippo Community Group: The place for all discussions and announcements about Hippo CMS (and HST, repository etc. etc.)
 
To post to this group, send email to hippo-community@googlegroups.com
RSS: https://groups.google.com/group/hippo-community/feed/rss_v2_0_msgs.xml?num=50
---
You received this message because you are subscribed to the Google Groups "Hippo Community" group.
To unsubscribe from this group and stop receiving emails from it, send an email to hippo-community+unsubscribe@googlegroups.com.
Visit this group at https://groups.google.com/group/hippo-community.
For more options, visit https://groups.google.com/d/optout.

[alasdair009]

thanks that cracked it :)

On Tuesday, December 6, 2016 at 2:51:37 PM UTC, marijan milicevic wrote:

Hi,

On Tue, Dec 6, 2016 at 10:47 AM, 'alasdair009' via Hippo Community <hippo-c...@googlegroups.com> wrote:

Hi Bert,

Inconvertible types; cannot cast 'java.lang.Strring' to 'com.companyname.web.beans.CopySection'

(Sorry front end developer fail I am sure) :(

On Tuesday, December 6, 2016 at 9:36:58 AM UTC, Bert Leunis wrote:

On Tue, Dec 6, 2016 at 9:56 AM, 'alasdair009' via Hippo Community <hippo-c...@googlegroups.com> wrote:

if (info != null)

If you change this line to the one below you will get rid of the exception. The "document" that is configured turns out to be a folder and not a CopySection or: node of type corecms:copysection

if (info !=null && info.getDocument() instance of CopySection)

I guess typesafe version should be used here:

CopySection document = getHippoBeanForPath(info.getDocument(), CopySection.class);

request.setAttribute("document", document);

I don't think null check for info variable is actually needed

cheers

marijan

 

With kind regards,

Bert Leunis

--
Hippo Community Group: The place for all discussions and announcements about Hippo CMS (and HST, repository etc. etc.)
 

To post to this group, send email to hippo-c...@googlegroups.com

RSS: https://groups.google.com/group/hippo-community/feed/rss_v2_0_msgs.xml?num=50
---
You received this message because you are subscribed to the Google Groups "Hippo Community" group.

To unsubscribe from this group and stop receiving emails from it, send an email to hippo-communi...@googlegroups.com.