topic Re: BeanCreation Exception: RuntimeExecutableContentTransformer in Alfresco Archive

BeanCreation Exception: RuntimeExecutableContentTransformer

jsauer — Wed, 06 Jan 2010 20:49:35 GMT

Hi, just want to register a simple RuntimeExecutableContentTransformerWorker based transformer. Does not work whatever I do. After lots of research here, the Wiki and other places no success so far.Environment: Alfresco 3.2.r2 on Windows XP SP3As my code did not work, I tried the code from the wiki.

Re: BeanCreation Exception: RuntimeExecutableContentTransformer

mycroes — Tue, 02 Feb 2010 15:59:01 GMT

I'm seeing the same issue. I've also looked at the ImageMagick transformer, noticed that they named all the beans. Tried that, didn't help. I also noticed that the ImageMagick transformer doesn't use the same property names as are used on the wiki. I don't know if those names are free to choose, but I would assume they're not. So currently I'm stuck in the same situation, not able to add my simple command line transformer.
Regards,

Michael

Re: BeanCreation Exception: RuntimeExecutableContentTransformer

mrogers — Tue, 02 Feb 2010 16:14:06 GMT

The problem is that there's no "registry" property.

You need to fulfill this bit of the config.

<bean id="baseContentTransformer"
         class="org.alfresco.repo.content.transform.AbstractContentTransformer"
         abstract="true"
         init-method="register">
      <property name="mimetypeService">
         <ref bean="mimetypeService" />
      </property>
      <property name="registry">
         <ref bean="contentTransformerRegistry" />
      </property>
   </bean>

Re: BeanCreation Exception: RuntimeExecutableContentTransformer

mycroes — Wed, 03 Feb 2010 09:36:36 GMT

The problem is that there's no "registry" property.
…

Personally, I think the problem is in bad documentation. The wiki fails to give correct and complete information, luckily I was able to figure out the solution myself (before I actually read your solution):

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE beans PUBLIC '-//SPRING//DTD BEAN//EN' 'http://www.springframework.org/dtd/spring-beans.dtd'>

<beans>
    <bean id="transformer.worker.dwg2pdf" class="org.alfresco.repo.content.transform.RuntimeExecutableContentTransformerWorker">
        <property name="mimetypeService">
            <ref bean="mimetypeService" />
        </property>
        <property name="checkCommand">
            <bean class="org.alfresco.util.exec.RuntimeExec">
                <property name="commandsAndArguments">
                    <map>
                        <entry key=".*">
                            <list>
                                <value>ls</value>
                                <value>/usr/local/bin/dwg2pdf</value>
                            </list>
                        </entry>
                    </map>
                </property>
                <property name="errorCodes">
                    <value>2</value>
                </property>
            </bean>
        </property>

        <property name="transformCommand">
            <bean class="org.alfresco.util.exec.RuntimeExec">
                <property name="commandsAndArguments">
                    <map>
                        <entry key=".*">
                            <list>
                                <value>/usr/local/bin/dwg2pdf</value>
                                <value>${source}</value>
                                <value>${target}</value>
                            </list>
                        </entry>
                    </map>
                </property>
                <property name="errorCodes">
                    <value>1,2</value>
                </property>
            </bean>
        </property>

        <property name="explicitTransformations">
            <list>
                <bean class="org.alfresco.repo.content.transform.ExplictTransformationDetails">
                    <property name="sourceMimetype"><value>image/x-dwg</value></property>
                    <property name="targetMimetype"><value>application/pdf</value></property>
                </bean>
            </list>
        </property>
    </bean>

    <bean id="transformer.dwg2pdf" class="org.alfresco.repo.content.transform.ProxyContentTransformer" parent="baseContentTransformer">
        <property name="worker">
            <ref bean="transformer.worker.dwg2pdf" />
        </property>
    </bean>
</beans>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

What was missing was the fact that due to the worker transformation there needed to be another bean referring to the worker. Although this is explained somewhat in upgrading-to-3.2 page on the wiki, the page about content transformations lacked a proper explanation. Also, I didn't upgrade from anything, so I wouldn't expect the need to look at the upgrading page for a fresh install.

I also noticed that when the mimetypeService property is missing, a null pointer exception is thrown. Even when logging for content transformations is set to debug it's not clear where this comes from, but just adding the property solved it for me.

Last I noticed that the commandMap property was deprecated, and should be replaced by commandsAndArguments, so I did that for my transformer. Also, I currently rely on being able to find the executable as a test to whether it works, which is fine for me but of course should not be used for most people (the executable is an in-company developed converter, which currently lacks a help option or similar so I can't do a proper check right now).

However, could you explain the difference between my solution and yours. It seems to me that your solution is redefining the baseContentTransformer in some way, which doesn't seem like an ideal solution to me…
Regards,

Michael

Re: BeanCreation Exception: RuntimeExecutableContentTransformer

mycroes — Wed, 03 Feb 2010 10:02:18 GMT

Meanwhile I updated the wiki to at least add my file as example, would be nice if you would also be able to read and verify that as to make sure it's useful for other users.
Regards,

Michael

Re: BeanCreation Exception: RuntimeExecutableContentTransformer

dirk1 — Thu, 25 Feb 2010 15:32:27 GMT

Hello Michael,

Meanwhile I updated the wiki to at least add my file as example,

Could you please give us a link to that wiki?

Thanks a lot.

Dirk

Re: BeanCreation Exception: RuntimeExecutableContentTransformer

dirk1 — Thu, 25 Feb 2010 15:36:57 GMT

Hello mrogers,

The problem is that there's no "registry" property.

You need to fulfill this bit of the config.

Your posted code is identical to that what i found in my content-services-context.xml.
Nevertheless it happens the above posted error.

Any more ideas?

Thanks

Dirk

Re: BeanCreation Exception: RuntimeExecutableContentTransformer

mycroes — Fri, 05 Mar 2010 08:34:19 GMT

Meanwhile I updated the wiki to at least add my file as example,

Could you please give us a link to that wiki?

Sorry I wasn't watching the topic, here it is:
http://wiki.alfresco.com/wiki/Content_Transformations

I also added a page describing our complete DWG transformation setup with additional information, you can find that here (also includes the example):
http://wiki.alfresco.com/wiki/DWG_Transformations
Regards,

Michael