Hello
I'm new to CMIS so please be a little patient with me
We use Alfresco 4.x to store our documents and Apache Chemistry to communicate with Alfresco.
We added a new document type into alfresco to store tif images along with some meta data. I now want to add some log-statements to these documents. Here is the model:
I want to use CMIS to add several "zpe:documentLogs" to a "zpe:zpeDocument" (the tif image)
Currently the zpe:zpeDocument are in Alfresco but I struggle to get used to the CMIS API:
There are some issues with this:
it throws an exception: org.apache.chemistry.opencmis.commons.exceptions.CmisInvalidArgumentException: Invalid typeId zpe:documentLogs
AlfrescoDocument.getParents is very slow. Several seconds. Is there an easy / quick way to use the cmisObjectId of a document to retrieve its parent folder?
It now creates a document in alfresco using name "zpeDocumentLogName". This fails for the second documentLog (the name is already used).
But I want to have it added as Metadata to the tif-document and not as some "file" beside it.
Is there a way to add the documentLog entries into the metadata of the tif image? Or do I need to create a document?
And what is a smart way to create unique names then? (application is clustered so I dont want to use timestamps)
Or is the model not ok and instead of types we should use something else?
thanks a lot!
I'm new to CMIS so please be a little patient with me
We use Alfresco 4.x to store our documents and Apache Chemistry to communicate with Alfresco.
We added a new document type into alfresco to store tif images along with some meta data. I now want to add some log-statements to these documents. Here is the model:
<?xml version="1.0" encoding="UTF-8"?>
<!– Definition of new Model –>
<model name="zpe:zpeModel" xmlns="http://www.alfresco.org/model/dictionary/1.0">
<!– Optional meta-data about the model –>
<description>ZPE Model</description>
<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"/>
<import uri="http://www.alfresco.org/model/system/1.0" prefix="sys" />
</imports>
<namespaces>
<namespace uri="http://www.domain.com/zpe/1.0" prefix="zpe"/>
</namespaces>
<types>
<type name="zpe:zpeDocument">
<title>ZPE document</title>
<parent>cm:content</parent>
<properties>
<property name="zpe:centId">
<type>d:long</type>
<mandatory>true</mandatory>
</property>
<property name="zpe:documentType">
<type>d:text</type>
<mandatory>true</mandatory>
</property>
<property name="zpe:documentStatus">
<type>d:text</type>
</property>
<!–
Quite a few more
–>
</properties>
<associations>
<child-association name="zpe:documentLogs">
<title>Comments</title>
<source>
<mandatory>false</mandatory>
<many>false</many>
</source>
<target>
<class>zpe:documentLog</class>
<mandatory>false</mandatory>
<many>true</many>
</target>
</child-association>
</associations>
</type>
<type name="zpe:documentLog">
<title>Document log</title>
<parent>cm:content</parent>
<properties>
<property name="zpe:logText">
<type>d:text</type>
<index enabled="false" />
</property>
<property name="zpe:logUsername">
<type>d:text</type>
<index enabled="false" />
</property>
<property name="zpe:logDate">
<type>d:datetime</type>
<index enabled="false" />
</property>
</properties>
</type>
</types>
</model>
I want to use CMIS to add several "zpe:documentLogs" to a "zpe:zpeDocument" (the tif image)
Currently the zpe:zpeDocument are in Alfresco but I struggle to get used to the CMIS API:
private String createCmisNode(final String folderIdString) {
ObjectId folderId = new ObjectId() {
@Override
public String getId() {
return folderIdString;
}
};
Map<String, Object> properties = new HashMap<>();
properties.put(PropertyIds.OBJECT_TYPE_ID, ZpeAlfType.ZPE_DOCUMENT_LOG.getTypeName());
properties.put(PropertyIds.NAME, "zpeDocumentLogName");
ContentStream contentStream = null;
ObjectId objectNode = session.createDocument(properties, folderId, contentStream, VersioningState.NONE);
return objectNode.getId();
}
public void createZpeDocumentLog(final String cmisObjectId, Map<String, Object> properties, String documentType) throws IOException {
// cmisObjectId = "workspace://SpacesStore/addb1495-90a4-4842-8bf0-b3b27de56410"
OperationContext operationContext = session.createOperationContext();
operationContext.setCacheEnabled(true);
operationContext.setIncludeAcls(true);
operationContext.setIncludePolicies(true);
operationContext.setIncludeRelationships(IncludeRelationships.BOTH);
session.setDefaultContext(operationContext);
CmisObject cmisObject = session.getObject(cmisObjectId);
AlfrescoDocument tiffAlfDoc = (AlfrescoDocument) cmisObject;
List<Folder> parents = tiffAlfDoc.getParents(operationContext); // TODO: takes several seconds!
if (CollectionUtils.isEmpty(parents)) {
throw new IOException("The given cmoObjectId has no parent folder");
}
Folder tiffFileParentFolder = parents.get(0);
String propertyValue = tiffFileParentFolder.getPropertyValue(PropertyIds.OBJECT_ID);
// create cmisObject of type "Node" to be able to add the documentLog there
// later create a relation / association between the tif cmisObject and this node cmisObject
final String cmisLogNodeObjectId = createCmisNode(propertyValue);
// create relation:
Document doc = (Document)session.getObject(new ObjectId() {
@Override
public String getId() {
return cmisObjectId; // tiff image
}
});
//Retrieve or create the log/logs
CmisObject log = session.getObject(new ObjectId() {
@Override
public String getId() {
return cmisLogNodeObjectId; // log document
}
});
AlfrescoDocument alfDoc = (AlfrescoDocument) doc;
alfDoc.addAspect("P:cm:referencesnode");
Map<String, String> relProps = new HashMap<String, String>();
relProps.put("cmis:sourceId", doc.getId());
relProps.put("cmis:targetId", log.getId());
relProps.put("cmis:objectTypeId", "zpe:documentLogs");
session.createRelationship(relProps, null, null, null);
}
There are some issues with this:
it throws an exception: org.apache.chemistry.opencmis.commons.exceptions.CmisInvalidArgumentException: Invalid typeId zpe:documentLogs
AlfrescoDocument.getParents is very slow. Several seconds. Is there an easy / quick way to use the cmisObjectId of a document to retrieve its parent folder?
It now creates a document in alfresco using name "zpeDocumentLogName". This fails for the second documentLog (the name is already used).
But I want to have it added as Metadata to the tif-document and not as some "file" beside it.
Is there a way to add the documentLog entries into the metadata of the tif image? Or do I need to create a document?
And what is a smart way to create unique names then? (application is clustered so I dont want to use timestamps)
Or is the model not ok and instead of types we should use something else?
thanks a lot!
