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- SessionFactory This interface provides the entry point into the client API and is responsible to create a session object. Additionally it gives access to all repository info exposed by a CMIS provider. The runtime provides a default implementation for the SessionFactory interface.
- Session This is the main interfahce an application has to work with. A session object is related to a CMIS service provider and is attached to exact one repository. All data that is received through the session interface can be cached in the session object in dependency of the concrete implementation which is behind.
- Repository Wrapper interface for the CMIS RepositoryInfo service.
- CmisObject The CmisObject interface represents the CMIS domain object.
- ObjectType This interface is base for all CMIS domain types like FolderType, DocumentType, PolicyType and RelationType. The derived interfaces are not shown in the diagram.
- Folder This interface represents the CMIS folder object.
- Document This interface represents the CMIS document object.
- ContentStream this interface wraps the content stream of a CMIS document.
- Policy This interface represents the CMIS policy object.
- Relation This interface represents the CMIS relation object.
Session and Cache Concepts
The concrete cache strategy depends on the implementation of the session in the client runtime. There are currently two session implementations in consideration:
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A Transient Session extends the persistent session and implements a buffer for all write operations. With that all single write operations are executed lazy during an explicit session save call. Write operations can be reverted by calling the cancel method on the session object. This strategy is not implemented yet.
Example Code
Session Creation - AtomPub Provider
| Code Block |
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| title | Opening a Atom Pub Connection |
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// default factory implementation of client runtime
SessionFactory f = SessionFactoryImpl.newInstance();
Map<String, String> parameter = new HashMap<String, String>();
// user credentials
parameter.put(SessionParameter.USER, "Otto");
parameter.put(SessionParameter.PASSWORD, "****");
// connection settings
parameter.put(SessionParameter.ATOMPUB_URL, "http://<host>:<port>/cmis/atom");
parameter.put(SessionParameter.BINDING_TYPE, BindingType.ATOMPUB.value());
parameter.put(SessionParameter.REPOSITORY_ID, "myRepository");
// session locale
parameter.put(SessionParameter.LOCALE_ISO3166_COUNTRY, "");
parameter.put(SessionParameter.LOCALE_ISO639_LANGUAGE, "de");
parameter.put(SessionParameter.LOCALE_VARIANT, "");
// create session
Session s = f.createSession(parameter);
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Session Creation - Web Services Provider
| Code Block |
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| title | Opening a Web Services Connection |
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// default factory implementation of client runtime
SessionFactory f = SessionFactoryImpl.newInstance();
Map<String, String> parameter = new HashMap<String, String>();
// user credentials
parameter.put(SessionParameter.USER, "Otto");
parameter.put(SessionParameter.PASSWORD, "****");
// connection settings
parameter.put(SessionParameter.BINDING_TYPE, BindingType.WEBSERVICES.value());
parameter.put(SessionParameter.REPOSITORY_ID, "myRepository");
parameter.put(SessionParameter.WEBSERVICES_ACL_SERVICE, "http://<host>:<port>/cmis/services/ACLService?wsdl");
parameter.put(SessionParameter.WEBSERVICES_DISCOVERY_SERVICE, "http://<host>:<port>/cmis/services/DiscoveryService?wsdl");
parameter.put(SessionParameter.WEBSERVICES_MULTIFILING_SERVICE, "http://<host>:<port>/cmis/services/MultiFilingService?wsdl");
parameter.put(SessionParameter.WEBSERVICES_NAVIGATION_SERVICE, "http://<host>:<port>/cmis/services/NavigationService?wsdl");
parameter.put(SessionParameter.WEBSERVICES_OBJECT_SERVICE, "http://<host>:<port>/cmis/services/ObjectService?wsdl");
parameter.put(SessionParameter.WEBSERVICES_POLICY_SERVICE, "http://<host>:<port>/cmis/services/PolicyService?wsdl");
parameter.put(SessionParameter.WEBSERVICES_RELATIONSHIP_SERVICE, "http://<host>:<port>/cmis/services/RelationshipService?wsdl");
parameter.put(SessionParameter.WEBSERVICES_REPOSITORY_SERVICE, "http://<host>:<port>/cmis/services/RepositoryService?wsdl");
parameter.put(SessionParameter.WEBSERVICES_VERSIONING_SERVICE, "http://<host>:<port>/cmis/services/VersioningService?wsdl");
// session locale
parameter.put(SessionParameter.LOCALE_ISO3166_COUNTRY, "");
parameter.put(SessionParameter.LOCALE_ISO639_LANGUAGE, "de");
parameter.put(SessionParameter.LOCALE_VARIANT, "");
// create session
Session s = f.createSession(parameter);
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Reading Objects - Root Collection
| Code Block |
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| title | Reading the Root Collection |
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Folder root = this.session.getRootFolder();
PagingList<CmisObject> pl = root.getChildren(1);
for (CmisObject o : pl) {
System.out.println(o.getName());
}
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Reading Properties - Single Property
| Code Block |
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| title | Reading a Single Property |
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ObjectId id = this.session.createObjectId("4711");
Document document = (Document) this.session.getObject(id);
Property<String> p = document.getProperty(CmisProperties.OBJECT_ID.value());
String s = p.getValue();
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Reading Properties - All Properties
| Code Block |
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| title | Reading all Properties |
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ObjectId id = this.session.createObjectId("4711");
Document document = (Document) this.session.getObject(id);
List<Property<?>> l = document.getProperties();
Iterator<Property<?>> i = l.iterator();
while (i.hasNext()) {
Property<?> p = i.next();
Object value = p.getValue();
PropertyType t = p.getType();
switch (t) {
case INTEGER:
Integer n = (Integer) value;
System.out.println(p.getName() + " = " + n);
break;
case STRING:
[...]
}
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