topic Re: Mimetype and ContentFormat in Alfresco Archive

Mimetype and ContentFormat

cburghardt — Sat, 19 Nov 2005 19:12:22 GMT

Hi,I'm a little bit confused. I create new content with the webservice so I call ContentService.create() which takes a ContentFormat. This one is constructed with a mimetype and encoding. But how do I add a new mimetype (like rfc/822)? I found the tutorial to create a new content type but how is thi

Re: Mimetype and ContentFormat

gavinc — Mon, 21 Nov 2005 09:44:14 GMT

Hi,

To add new mime types you edit the mimetype-map.xml file which you will find in projects/repository/config/alfresco if you are running from the source, in <alfresco-home>/tomcat/webapps/alfresco/WEB-INF/classes if you are running from the Tomcat bundle or <alfresco-home>/jboss/server/default/conf if you are running from the JBoss bundle.

Re: Mimetype and ContentFormat

cburghardt — Mon, 21 Nov 2005 10:27:34 GMT

Thanks for your answer. So I add the mimetype to the map and create the content with that. But then I need to assign the content type somehow so that I can set the properties. How is this done?

Re: Mimetype and ContentFormat

rwetherall — Mon, 21 Nov 2005 11:59:28 GMT

Hi,

At the moment there is no way to set the content type using the content service.

If you want to create a content node of a specific content type then use a CML update via the repository service.

Have a look at WebServiceSample4 for an example of this and the Wiki has some documentation relating to the CML capabilities.

Adding the ability to set the content type via the content service is defiantly an enhancement we need to do and I'll add a JIRA task to ensure it gets done.

Thanks,
Roy

Re: Mimetype and ContentFormat

rwetherall — Mon, 21 Nov 2005 12:02:24 GMT

JIRA task added http://www.alfresco.org/jira/browse/AR-261

Re: Mimetype and ContentFormat

cburghardt — Mon, 21 Nov 2005 20:55:23 GMT

This would be great!

In the meantime I tried to create a content node with CML but this fails. I have defined my own model, placed it in the alfresco/extension directory and added it to extension-context.xml (alfresco/extension/rfc822.xml).

<model name="inovox:model" xmlns="http://www.alfresco.org/model/dictionary/1.0">
   <description>RFC 822</description>
   <author>Inovox</author>
   <version>1.0</version>
   <imports>
        <import uri="http://www.alfresco.org/model/dictionary/1.0" prefix="d"/>
        <import uri="http://www.alfresco.org/model/content/1.0" prefix="cm"/>
   </imports>
   <namespaces>
      <namespace uri="http://www.inovox.de/model/1.0" prefix="inovox"/>
   </namespaces>
   <types>
      <type name="inovox:email">
         <title>RFC 822 EMail</title>
         <parent>cm:content</parent>
         <properties>
            <property name="inovoxate">
               <type>d:datetime</type>
            </property>
            <property name="inovoxubject">
               <type>d:text</type>
            </property>
            <property name="inovox:From">
               <type>d:text</type>
            </property>
            <property name="inovox:To">
               <type>d:text</type>
            </property>
         </properties>
      </type>
    </types>
</model>

Now I fire a CMLCreate:
CMLCreate create = new CMLCreate(uid, parentReference, "inovox:email", props);

The result is this:
RepositoryFault:<ns1:errorCode>0</ns1:errorCode><ns1:message>Class {}inovox:email has not been defined in the data dictionary</ns1:message>

Re: Mimetype and ContentFormat

rwetherall — Mon, 21 Nov 2005 21:13:35 GMT

Hi,

Try …

CMLCreate create = new CMLCreate(uid, parentReference, "{http://www.inovox.de/model/1.0}email", props); ‍

… instead.

Hope this helps,
Roy

Re: Mimetype and ContentFormat

cburghardt — Tue, 22 Nov 2005 20:39:02 GMT

Yes, that helped.
So now I can create a content node of my type and set the properties with the NamedValue[]. But how can I set the content? Probably a stupid question but everything I found referred to the java api and not to the webservice.

Re: Mimetype and ContentFormat

rwetherall — Tue, 22 Nov 2005 20:58:46 GMT

Hi,

Try using the write method on the content web service.

Have a look in WebServiceSample3.java for an example and here http://www.alfresco.org/mediawiki/index.php/Web_Service_Samples_for_Java for a little detail on what the web service samples include.

Hope this helps,
Roy

Re: Mimetype and ContentFormat

cburghardt — Tue, 22 Nov 2005 22:05:10 GMT

Thank you for the super-fast response 🙂
I already tried that but all I got was an exception:
       {http://www.alfresco.org/ws/service/content/1.0}ContentFault:<ns1:errorCode>0</ns1:errorCode><ns1:message>Failed to set content property on stream closure:
   node: workspace://SpacesStore/176db206-5ba4-11da-94ca-ad548187be52
   property: {http://www.alfresco.org/model/content/1.0}content
   writer: ContentAccessor[ contentUrl=store://2005/11/22/17b9af2a-5ba4-11da-94ca-ad548187be52.bin, mimetype=null, size=4, encoding=UTF-8]</ns1:message>

The exception is thrown when I try to write the content:

            UpdateResult[] result = repositoryService.update(cml);
            contentService.write(result[0].getDestination(), bytes);

Re: Mimetype and ContentFormat

cburghardt — Mon, 28 Nov 2005 14:39:16 GMT

UpdateResult[] result = repositoryService.update(cml);
contentService.write(result[0].getDestination(), bytes);

I can't find the error - it seems to be a bug in the webservice. Is there any working example for this?

Re: Mimetype and ContentFormat

rwetherall — Tue, 29 Nov 2005 11:22:58 GMT

Hi,

First appoligies for the delay in responce, I must have missed you previous post.

From the infor you've provided it looks like the problem is that the mime-type for the content you are writting is not set.

Unfortunatly at this point we have noticed a problem with the API. create() allows a ContentFormat object to be passed which sets the mime type, write() does not. I will add a JIRA task for this and try and fix this up ASAP.

In the mean time there may be a work around. When creating the node you need to set a preliminary value on the content attribute, the code should look something like this ….


String mimeType = MimetypeMap.MIMETYPE_HTML;
NamedValue[] values = new NamedValue[]{new NamedValue(ContentModel.PROP_CONTENT.toString(), "contentUrl=|mimetype=" + mimeType + "|size=|encoding=UTF-8")};
CMLCreate create = new CMLCreate("id1", parentReference, <your content type, values);  
…
UpdateResult[] result = repositoryService.update(cml);
contentService.write(result[0].getDestination(), bytes);
‍‍‍‍‍‍‍‍

I've performed a quick test and it seams to work so it should get you going in the short term.

Hope this helps,
Roy

Re: Mimetype and ContentFormat

cburghardt — Wed, 30 Nov 2005 08:46:19 GMT

That seems to work so now I have to program a query via webservice so I can actually check if the properties have been set correctly as the webinterface does not display them
The NamedValue only accepts strings so I wonder how to set date attributes because I have defined one in my model. Any hints on that?

Update: there is something strange going on. I can retrieve my content including all properties (except the date ;-)), so that's fine.
But I have problems with the search:
- I can search for complete words in the properties, e.g. @{ns}subject: "Test1"
- searching with wildcards does not work, e.g. I find a document with the subject "Test1" but a search with "Test*" returns nothing
- searches for TEXT return no results, no matter what I search