Comments on: Grasping Thumbnails in Alfresco 3 http://ecmarchitect.com/archives/2009/03/03/913 Jeff Potts on ECM, portals, search, collaboration, and a bunch of personal stuff Mon, 06 Feb 2012 17:48:37 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Umut Utkan http://ecmarchitect.com/archives/2009/03/03/913/comment-page-1#comment-59579 Umut Utkan Sun, 26 Dec 2010 23:04:07 +0000 http://ecmarchitect.com/?p=913#comment-59579 I guess xml content in the comments are sanitized. Trying one last time with HTML encoded version of the same config. Sorry about that. <bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean"> <property name="targetObject" ref="thumbnailRegistry"/> <property name="targetMethod" value="addThumbnailDefinition"/> <property name="arguments"> <list> <bean class="org.alfresco.repo.thumbnail.ThumbnailDefinition"> <property name="name" value="scImageThumbnail"/> <property name="mimetype" value="image/png"/> <property name="transformationOptions"> <bean class="org.alfresco.repo.content.transform.magick.ImageTransformationOptions"> <property name="resizeOptions"> <bean class="org.alfresco.repo.content.transform.magick.ImageResizeOptions"> <property name="height" value="100"/> <property name="maintainAspectRatio" value="true"/> <property name="resizeToThumbnail" value="true"/> </bean> </property> </bean> </property> <property name="placeHolderResourcePath" value="alfresco/extension/thumbnail/thumbnail_placeholder_scImageThumbnail.png"/> </bean> </list> </property> </bean> I guess xml content in the comments are sanitized. Trying one last time with HTML encoded version of the same config. Sorry about that.

<bean class="org.springframework.beans.factory.config.MethodInvokingFactoryBean">
<property name="targetObject" ref="thumbnailRegistry"/>
<property name="targetMethod" value="addThumbnailDefinition"/>
<property name="arguments">
<list>
<bean class="org.alfresco.repo.thumbnail.ThumbnailDefinition">
<property name="name" value="scImageThumbnail"/>
<property name="mimetype" value="image/png"/>
<property name="transformationOptions">
<bean class="org.alfresco.repo.content.transform.magick.ImageTransformationOptions">
<property name="resizeOptions">
<bean class="org.alfresco.repo.content.transform.magick.ImageResizeOptions">
<property name="height" value="100"/>
<property name="maintainAspectRatio" value="true"/>
<property name="resizeToThumbnail" value="true"/>
</bean>
</property>
</bean>
</property>
<property name="placeHolderResourcePath"
value="alfresco/extension/thumbnail/thumbnail_placeholder_scImageThumbnail.png"/>
</bean>
</list>
</property>
</bean>

]]> By: Umut Utkan http://ecmarchitect.com/archives/2009/03/03/913/comment-page-1#comment-59578 Umut Utkan Sun, 26 Dec 2010 23:00:57 +0000 http://ecmarchitect.com/?p=913#comment-59578 Answer to > The out-of-the-box thumbnails are registered in the thumbnail-service-context.xml file. I don’t see a clean way to extend that without repeating the definitions, so in my example, I wrote a bean that calls the Thumbnail Registry and registers the custom thumbnail definitions provided in the Spring context file: Instead of creating a custom bean to register your custom thumbnail definitions, you could have just used MethodInvokingFactory bean to register them directly to the default thumbnailRegistry bean. It is for calling methods on other beans. See the following spring configuration. It should work, I used this approach in a lot of places while extending Alfresco since spring configurations are not authored extensibility in mind. Answer to

> The out-of-the-box thumbnails are registered in the thumbnail-service-context.xml file. I don’t see a clean way to extend that without repeating the definitions, so in my example, I wrote a bean that calls the Thumbnail Registry and registers the custom thumbnail definitions provided in the Spring context file:

Instead of creating a custom bean to register your custom thumbnail definitions, you could have just used MethodInvokingFactory bean to register them directly to the default thumbnailRegistry bean. It is for calling methods on other beans. See the following spring configuration.

It should work, I used this approach in a lot of places while extending Alfresco since spring configurations are not authored extensibility in mind.

]]> By: jpotts http://ecmarchitect.com/archives/2009/03/03/913/comment-page-1#comment-59110 jpotts Tue, 21 Dec 2010 00:06:55 +0000 http://ecmarchitect.com/?p=913#comment-59110 Unfortunately, no. That may be possible through a customization, but I haven't looked at it. I definitely get why you are asking. I currently have a client that would benefit from this distinction as well. Unfortunately, no. That may be possible through a customization, but I haven’t looked at it. I definitely get why you are asking. I currently have a client that would benefit from this distinction as well.

]]> By: Langdon http://ecmarchitect.com/archives/2009/03/03/913/comment-page-1#comment-58842 Langdon Wed, 15 Dec 2010 16:46:13 +0000 http://ecmarchitect.com/?p=913#comment-58842 In the current implementation of the thumbnail service, you kind of get 2 options: 1) generated thumbnail; 2) generating thumbnail placeholder (although, strictly speaking, this placeholder is "no thumbnail available"). Do you know of any way to get a third option which would either be a proper "generating thumbnail placeholder" or a new one "no thumbnail can be created for this mime-type placeholder?" Alternately, a way through the service to know if a thumbnail will eventually be created when using "c=queue" vs just that it isn't available yet? In the current implementation of the thumbnail service, you kind of get 2 options: 1) generated thumbnail; 2) generating thumbnail placeholder (although, strictly speaking, this placeholder is “no thumbnail available”). Do you know of any way to get a third option which would either be a proper “generating thumbnail placeholder” or a new one “no thumbnail can be created for this mime-type placeholder?” Alternately, a way through the service to know if a thumbnail will eventually be created when using “c=queue” vs just that it isn’t available yet?

]]> By: jpotts http://ecmarchitect.com/archives/2009/03/03/913/comment-page-1#comment-57438 jpotts Tue, 09 Nov 2010 14:58:18 +0000 http://ecmarchitect.com/?p=913#comment-57438 Try this instead: http://cmis.alfresco.com/s/api/node/workspace/SpacesStore/f9bb33bb-652e-432f-bb61-8fbd495cfb06/content/thumbnails/doclib?c=queue&ph=true That will pull up the placeholder graphic, but no thumb gets generated for that file. Looks like your asset is a graphic, so I'm not sure whether the issue is that they don't have ImageMagick installed/configured properly or there was some problem creating the rendition for your particular file, or some other issue. Jeff Try this instead:

http://cmis.alfresco.com/s/api/node/workspace/SpacesStore/f9bb33bb-652e-432f-bb61-8fbd495cfb06/content/thumbnails/doclib?c=queue&ph=true

That will pull up the placeholder graphic, but no thumb gets generated for that file. Looks like your asset is a graphic, so I’m not sure whether the issue is that they don’t have ImageMagick installed/configured properly or there was some problem creating the rendition for your particular file, or some other issue.

Jeff

]]> By: Franki http://ecmarchitect.com/archives/2009/03/03/913/comment-page-1#comment-57424 Franki Tue, 09 Nov 2010 09:18:34 +0000 http://ecmarchitect.com/?p=913#comment-57424 Hello, Is it possible to use thumbnails with public alfresco repository? If I go to "http://cmis.alfresco.com/s/api/node/workspace/SpacesStore/f9bb33bb-652e-432f-bb61-8fbd495cfb06/content/thumbnails/doclib?qc=queue&ph=true" the place holder is created but no thmubnail is created. Thanks in advance, Franki Hello,

Is it possible to use thumbnails with public alfresco repository?

If I go to “http://cmis.alfresco.com/s/api/node/workspace/SpacesStore/f9bb33bb-652e-432f-bb61-8fbd495cfb06/content/thumbnails/doclib?qc=queue&ph=true” the place holder is created but no thmubnail is created.

Thanks in advance,
Franki

]]> By: Cláudio http://ecmarchitect.com/archives/2009/03/03/913/comment-page-1#comment-55471 Cláudio Tue, 21 Sep 2010 20:39:06 +0000 http://ecmarchitect.com/?p=913#comment-55471 Thanks Jeff... I already solved it... Thanks again for the help Thanks Jeff… I already solved it…

Thanks again for the help

]]> By: jpotts http://ecmarchitect.com/archives/2009/03/03/913/comment-page-1#comment-55467 jpotts Tue, 21 Sep 2010 17:46:25 +0000 http://ecmarchitect.com/?p=913#comment-55467 convert is the name of the ImageMagick binary itself. Alfresco wants the path to the binary, not the binary file (Alfresco already knows the binary is "convert"). So try it without "/convert" and see what happens. If you look at catalina.out you can see where Alfresco will attempt to do a test conversion on startup. It outputs any error messages that happen during the conversion. Use that to help you debug. Jeff convert is the name of the ImageMagick binary itself. Alfresco wants the path to the binary, not the binary file (Alfresco already knows the binary is “convert”). So try it without “/convert” and see what happens. If you look at catalina.out you can see where Alfresco will attempt to do a test conversion on startup. It outputs any error messages that happen during the conversion. Use that to help you debug.

Jeff

]]> By: Cláudio http://ecmarchitect.com/archives/2009/03/03/913/comment-page-1#comment-55461 Cláudio Tue, 21 Sep 2010 15:14:44 +0000 http://ecmarchitect.com/?p=913#comment-55461 I just installed ImageMagick... I'm using Fedora and I pointed the alfresco-global.properties to ImageMagik dont as a binary... it has /usr/bin/display /usr/bin/convert /usr/bin/montage ... i used img.root=/usr/bin/convert but still nothing... Is it right? I just installed ImageMagick…

I’m using Fedora and I pointed the alfresco-global.properties to

ImageMagik dont as a binary…

it has
/usr/bin/display
/usr/bin/convert
/usr/bin/montage
…

i used

img.root=/usr/bin/convert

but still nothing…
Is it right?

]]> By: jpotts http://ecmarchitect.com/archives/2009/03/03/913/comment-page-1#comment-55460 jpotts Tue, 21 Sep 2010 14:01:18 +0000 http://ecmarchitect.com/?p=913#comment-55460 Yes. Install ImageMagick and then make sure your alfresco-global.properties file is pointing to the location of the ImageMagick binary. Jeff Yes. Install ImageMagick and then make sure your alfresco-global.properties file is pointing to the location of the ImageMagick binary.

Jeff

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