org.nuxeo.ecm.platform.tag
Class TagServiceImpl

java.lang.Object
  org.nuxeo.runtime.model.DefaultComponent
      org.nuxeo.ecm.platform.tag.TagServiceImpl

All Implemented Interfaces:

TagService, Adaptable, Component, Extensible

public class TagServiceImpl
extends DefaultComponent
implements TagService

The implementation of the tag service.

Field Summary

static String

NXTAG

Fields inherited from interface org.nuxeo.ecm.platform.tag.TagService

ID

Constructor Summary

TagServiceImpl()

Method Summary

List<Tag>	getDocumentTags(CoreSession session, String docId, String username) Gets the tags applied to a document by a given user, or by all users.
List<Tag>	getSuggestions(CoreSession session, String label, String username) Gets suggestions for a given tag label prefix.
List<Tag>	getTagCloud(CoreSession session, String docId, String username, Boolean normalize) Gets the tag cloud for a set of documents (tags with weight corresponding to their popularity).
List<String>	getTagDocumentIds(CoreSession session, String label, String username) Gets the documents to which a tag is applied.
boolean	isEnabled() Defines if tag service is enable.
static void	normalizeCloud(List<Tag> cloud, int min, int max, boolean linear)
void	tag(CoreSession session, String docId, String label, String username) Tags a document with a given tag.
void	untag(CoreSession session, String docId, String label, String username) Untags a document of the given tag

Methods inherited from class org.nuxeo.runtime.model.DefaultComponent

activate, applicationStarted, deactivate, getAdapter, registerContribution, registerExtension, unregisterContribution, unregisterExtension

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NXTAG

public static final String NXTAG

See Also:

Constant Field Values

Constructor Detail

TagServiceImpl

public TagServiceImpl()

Method Detail

isEnabled

public boolean isEnabled()

Description copied from interface: TagService

Defines if tag service is enable.

Specified by:

isEnabled in interface TagService

Returns:

true if the underlying repository supports the tag feature

tag

public void tag(CoreSession session,
                String docId,
                String label,
                String username)
         throws ClientException

Description copied from interface: TagService

Tags a document with a given tag.

Specified by:

tag in interface TagService

Parameters:

session - the session

docId - the document id

label - the tag

username - the user associated to the tagging

Throws:

ClientException

untag

public void untag(CoreSession session,
                  String docId,
                  String label,
                  String username)
           throws ClientException

Description copied from interface: TagService

Untags a document of the given tag

Specified by:

untag in interface TagService

Parameters:

session - the session

docId - the document id

label - the tag, or null for all tags

username - the user associated to the tagging

Throws:

ClientException

getDocumentTags

public List<Tag> getDocumentTags(CoreSession session,
                                 String docId,
                                 String username)
                          throws ClientException

Description copied from interface: TagService

Gets the tags applied to a document by a given user, or by all users.

Specified by:

getDocumentTags in interface TagService

Parameters:

session - the session

docId - the document id

username - the user name, or null for all users

Returns:

the list of tags

Throws:

ClientException

getTagDocumentIds

public List<String> getTagDocumentIds(CoreSession session,
                                      String label,
                                      String username)
                               throws ClientException

Description copied from interface: TagService

Gets the documents to which a tag is applied.

Specified by:

getTagDocumentIds in interface TagService

Parameters:

session - the session

label - the tag

username - the user name, or null for all users

Returns:

the set of document ids

Throws:

ClientException

getTagCloud

public List<Tag> getTagCloud(CoreSession session,
                             String docId,
                             String username,
                             Boolean normalize)
                      throws ClientException

Description copied from interface: TagService

Gets the tag cloud for a set of documents (tags with weight corresponding to their popularity).

If a docId is passed, only documents under it are considered, otherwise all documents in the database are used.

The cloud is returned unsorted.

Specified by:

getTagCloud in interface TagService

Parameters:

session - the session

docId - the document id under which to look, or null for all documents

username - the user name, or null for all users

normalize - null for no weight normalization (a count is returned), FALSE for 0-100 normalization, TRUE for logarithmic 0-100 normalization

Returns:

the cloud (a list of weighted tags)

Throws:

ClientException

normalizeCloud

public static void normalizeCloud(List<Tag> cloud,
                                  int min,
                                  int max,
                                  boolean linear)

getSuggestions

public List<Tag> getSuggestions(CoreSession session,
                                String label,
                                String username)
                         throws ClientException

Description copied from interface: TagService

Gets suggestions for a given tag label prefix.

Specified by:

getSuggestions in interface TagService

Parameters:

session - the session

label - the tag label prefix

username - the user name, or null for all users

Returns:

a list of tags

Throws:

ClientException