org.apache.manifoldcf.crawler.connectors.gridfs

Class GridFSRepositoryConnector

java.lang.Object

org.apache.manifoldcf.core.connector.BaseConnector

org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

org.apache.manifoldcf.crawler.connectors.gridfs.GridFSRepositoryConnector

All Implemented Interfaces:

org.apache.manifoldcf.core.interfaces.IConnector, org.apache.manifoldcf.crawler.interfaces.IRepositoryConnector

public class GridFSRepositoryConnector
extends org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

Author:

molgun

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.String	acl Endpoint acl.
protected static java.lang.String	ACTIVITY_FETCH Activity name for the activity record.
protected java.lang.String	bucket Endpoint bucket.
protected java.lang.String	db Endpoint db.
protected java.lang.String	denyAcl Endpoint denyAcl.
protected static java.util.HashMap	documentKnownColumns Special column names, as far as document queries are concerned
protected java.lang.String	host Endpoint host.
protected long	lastSessionFetch Last session fetch time.
protected java.lang.String	password Endpoint password.
protected java.lang.String	port Endpoint port.
protected static java.lang.String	SERVER Server name for declaring bin name.
protected com.mongodb.DB	session MongoDB session.
protected static long	SESSION_EXPIRATION_MILLISECONDS Session expiration milliseconds.
protected java.lang.String	url Endpoint url.
protected java.lang.String	username Endpoint username.

Fields inherited from class org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

_rcsid

Fields inherited from class org.apache.manifoldcf.core.connector.BaseConnector

currentContext, params

Fields inherited from interface org.apache.manifoldcf.crawler.interfaces.IRepositoryConnector

GLOBAL_DENY_TOKEN, JOBMODE_CONTINUOUS, JOBMODE_ONCEONLY, MODEL_ADD, MODEL_ADD_CHANGE, MODEL_ADD_CHANGE_DELETE, MODEL_ALL, MODEL_CHAINED_ADD, MODEL_CHAINED_ADD_CHANGE, MODEL_CHAINED_ADD_CHANGE_DELETE, MODEL_PARTIAL

Constructor Summary

Constructors

Constructor and Description
GridFSRepositoryConnector() Constructer.

Method Summary

Modifier and Type	Method and Description
java.lang.String	addSeedDocuments(org.apache.manifoldcf.crawler.interfaces.ISeedingActivity activities, org.apache.manifoldcf.core.interfaces.Specification spec, java.lang.String lastSeedVersion, long seedTime, int jobMode) Queue "seed" documents.
protected void	applyMetadata(org.apache.manifoldcf.agents.interfaces.RepositoryDocument rd, com.mongodb.DBObject metadataMap) Apply metadata to a repository document.
java.lang.String	check() Test the connection.
void	connect(org.apache.manifoldcf.core.interfaces.ConfigParams configParams) Connect.
void	disconnect() Close the connection.
void	fillInServerParameters(java.util.Map<java.lang.String,java.lang.String> paramMap, org.apache.manifoldcf.core.interfaces.IPasswordMapperActivity mapper, org.apache.manifoldcf.core.interfaces.ConfigParams parameters) Fill in a Server tab configuration parameter map for calling a Velocity template.
java.lang.String[]	getActivitiesList() Return the list of activities that this connector supports (i.e.
java.lang.String[]	getBinNames(java.lang.String documentIdentifier) Tell the world what model this connector uses for addSeedDocuments().
int	getConnectorModel() Tell the world what model this connector uses for addSeedDocuments().
int	getMaxDocumentRequest() Get the maximum number of documents to amalgamate together into one batch, for this connector.
java.lang.String[]	getRelationshipTypes() Return the list of relationship types that this connector recognizes.
protected void	getSession() Setup a session.
protected static void	handleIOException(java.io.IOException e)
boolean	isConnected() This method is called to assess whether to count this connector instance should actually be counted as being connected.
void	outputConfigurationBody(org.apache.manifoldcf.core.interfaces.IThreadContext threadContext, org.apache.manifoldcf.core.interfaces.IHTTPOutput out, java.util.Locale locale, org.apache.manifoldcf.core.interfaces.ConfigParams parameters, java.lang.String tabName) Output the configuration body section.
void	outputConfigurationHeader(org.apache.manifoldcf.core.interfaces.IThreadContext threadContext, org.apache.manifoldcf.core.interfaces.IHTTPOutput out, java.util.Locale locale, org.apache.manifoldcf.core.interfaces.ConfigParams parameters, java.util.List<java.lang.String> tabsArray) Output the configuration header section.
void	poll() This method is periodically called for all connectors that are connected but not in active use.
java.lang.String	processConfigurationPost(org.apache.manifoldcf.core.interfaces.IThreadContext threadContext, org.apache.manifoldcf.core.interfaces.IPostParameters variableContext, java.util.Locale locale, org.apache.manifoldcf.core.interfaces.ConfigParams parameters) Process a configuration post.
void	processDocuments(java.lang.String[] documentIdentifiers, org.apache.manifoldcf.crawler.interfaces.IExistingVersions statuses, org.apache.manifoldcf.core.interfaces.Specification spec, org.apache.manifoldcf.crawler.interfaces.IProcessActivity activities, int jobMode, boolean usesDefaultAuthority) Process a set of documents.
void	viewConfiguration(org.apache.manifoldcf.core.interfaces.IThreadContext threadContext, org.apache.manifoldcf.core.interfaces.IHTTPOutput out, java.util.Locale locale, org.apache.manifoldcf.core.interfaces.ConfigParams parameters) View configuration.

Methods inherited from class org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

getFormCheckJavascriptMethodName, getFormPresaveCheckJavascriptMethodName, outputSpecificationBody, outputSpecificationHeader, processSpecificationPost, requestInfo, viewSpecification

Methods inherited from class org.apache.manifoldcf.core.connector.BaseConnector

clearThreadContext, deinstall, getConfiguration, install, outputConfigurationBody, outputConfigurationHeader, outputConfigurationHeader, pack, packFixedList, packList, packList, processConfigurationPost, setThreadContext, unpack, unpackFixedList, unpackList, viewConfiguration

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.manifoldcf.core.interfaces.IConnector

clearThreadContext, deinstall, getConfiguration, install, setThreadContext

Field Detail

ACTIVITY_FETCH

protected static final java.lang.String ACTIVITY_FETCH

Activity name for the activity record.

See Also:

Constant Field Values

SERVER

protected static final java.lang.String SERVER

Server name for declaring bin name.

See Also:

Constant Field Values

SESSION_EXPIRATION_MILLISECONDS

protected static final long SESSION_EXPIRATION_MILLISECONDS

Session expiration milliseconds.

See Also:

Constant Field Values

username

protected java.lang.String username

Endpoint username.

password

protected java.lang.String password

Endpoint password.

host

protected java.lang.String host

Endpoint host.

port

protected java.lang.String port

Endpoint port.

db

protected java.lang.String db

Endpoint db.

bucket

protected java.lang.String bucket

Endpoint bucket.

url

protected java.lang.String url

Endpoint url.

acl

protected java.lang.String acl

Endpoint acl.

denyAcl

protected java.lang.String denyAcl

Endpoint denyAcl.

session

protected com.mongodb.DB session

MongoDB session.

lastSessionFetch

protected long lastSessionFetch

Last session fetch time.

documentKnownColumns

protected static java.util.HashMap documentKnownColumns

Special column names, as far as document queries are concerned

Constructor Detail

GridFSRepositoryConnector

public GridFSRepositoryConnector()

Constructer.

Method Detail

getBinNames

public java.lang.String[] getBinNames(java.lang.String documentIdentifier)

Tell the world what model this connector uses for addSeedDocuments(). This must return a model value as specified above. The connector does not have to be connected for this method to be called.

Specified by:

getBinNames in interface org.apache.manifoldcf.crawler.interfaces.IRepositoryConnector

Overrides:

getBinNames in class org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

Returns:

the model type value.

getConnectorModel

public int getConnectorModel()

Tell the world what model this connector uses for addSeedDocuments(). This must return a model value as specified above. The connector does not have to be connected for this method to be called.

Specified by:

getConnectorModel in interface org.apache.manifoldcf.crawler.interfaces.IRepositoryConnector

Overrides:

getConnectorModel in class org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

Returns:

the model type value.

getActivitiesList

public java.lang.String[] getActivitiesList()

Return the list of activities that this connector supports (i.e. writes into the log). The connector does not have to be connected for this method to be called.

Specified by:

getActivitiesList in interface org.apache.manifoldcf.crawler.interfaces.IRepositoryConnector

Overrides:

getActivitiesList in class org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

Returns:

the list.

connect

public void connect(org.apache.manifoldcf.core.interfaces.ConfigParams configParams)

Connect.

Specified by:

connect in interface org.apache.manifoldcf.core.interfaces.IConnector

Overrides:

connect in class org.apache.manifoldcf.core.connector.BaseConnector

Parameters:

configParams - is the set of configuration parameters, which in this case describe the root directory.

check

public java.lang.String check()
                       throws org.apache.manifoldcf.core.interfaces.ManifoldCFException

Test the connection. Returns a string describing the connection integrity.

Specified by:

check in interface org.apache.manifoldcf.core.interfaces.IConnector

Overrides:

check in class org.apache.manifoldcf.core.connector.BaseConnector

Returns:

the connection's status as a displayable string.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

disconnect

public void disconnect()
                throws org.apache.manifoldcf.core.interfaces.ManifoldCFException

Close the connection. Call this before discarding this instance of the repository connector.

Specified by:

disconnect in interface org.apache.manifoldcf.core.interfaces.IConnector

Overrides:

disconnect in class org.apache.manifoldcf.core.connector.BaseConnector

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

poll

public void poll()
          throws org.apache.manifoldcf.core.interfaces.ManifoldCFException

This method is periodically called for all connectors that are connected but not in active use.

Specified by:

poll in interface org.apache.manifoldcf.core.interfaces.IConnector

Overrides:

poll in class org.apache.manifoldcf.core.connector.BaseConnector

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

isConnected

public boolean isConnected()

This method is called to assess whether to count this connector instance should actually be counted as being connected.

Specified by:

isConnected in interface org.apache.manifoldcf.core.interfaces.IConnector

Overrides:

isConnected in class org.apache.manifoldcf.core.connector.BaseConnector

Returns:

true if the connector instance is actually connected.

getMaxDocumentRequest

public int getMaxDocumentRequest()

Get the maximum number of documents to amalgamate together into one batch, for this connector.

Specified by:

getMaxDocumentRequest in interface org.apache.manifoldcf.crawler.interfaces.IRepositoryConnector

Overrides:

getMaxDocumentRequest in class org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

Returns:

the maximum number. 0 indicates "unlimited".

getRelationshipTypes

public java.lang.String[] getRelationshipTypes()

Return the list of relationship types that this connector recognizes.

Specified by:

getRelationshipTypes in interface org.apache.manifoldcf.crawler.interfaces.IRepositoryConnector

Overrides:

getRelationshipTypes in class org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

Returns:

the list.

addSeedDocuments

public java.lang.String addSeedDocuments(org.apache.manifoldcf.crawler.interfaces.ISeedingActivity activities,
                                         org.apache.manifoldcf.core.interfaces.Specification spec,
                                         java.lang.String lastSeedVersion,
                                         long seedTime,
                                         int jobMode)
                                  throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                                         org.apache.manifoldcf.agents.interfaces.ServiceInterruption

Queue "seed" documents. Seed documents are the starting places for crawling activity. Documents are seeded when this method calls appropriate methods in the passed in ISeedingActivity object. This method can choose to find repository changes that happen only during the specified time interval. The seeds recorded by this method will be viewed by the framework based on what the getConnectorModel() method returns. It is not a big problem if the connector chooses to create more seeds than are strictly necessary; it is merely a question of overall work required. The end time and seeding version string passed to this method may be interpreted for greatest efficiency. For continuous crawling jobs, this method will be called once, when the job starts, and at various periodic intervals as the job executes. When a job's specification is changed, the framework automatically resets the seeding version string to null. The seeding version string may also be set to null on each job run, depending on the connector model returned by getConnectorModel(). Note that it is always ok to send MORE documents rather than less to this method. The connector will be connected before this method can be called.

Specified by:

addSeedDocuments in interface org.apache.manifoldcf.crawler.interfaces.IRepositoryConnector

Overrides:

addSeedDocuments in class org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

Parameters:

activities - is the interface this method should use to perform whatever framework actions are desired.

spec - is a document specification (that comes from the job).

seedTime - is the end of the time range of documents to consider, exclusive.

lastSeedVersion - is the last seeding version string for this job, or null if the job has no previous seeding version string.

jobMode - is an integer describing how the job is being run, whether continuous or once-only.

Returns:

an updated seeding version string, to be stored with the job.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

org.apache.manifoldcf.agents.interfaces.ServiceInterruption

processDocuments

public void processDocuments(java.lang.String[] documentIdentifiers,
                             org.apache.manifoldcf.crawler.interfaces.IExistingVersions statuses,
                             org.apache.manifoldcf.core.interfaces.Specification spec,
                             org.apache.manifoldcf.crawler.interfaces.IProcessActivity activities,
                             int jobMode,
                             boolean usesDefaultAuthority)
                      throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                             org.apache.manifoldcf.agents.interfaces.ServiceInterruption

Process a set of documents. This is the method that should cause each document to be fetched, processed, and the results either added to the queue of documents for the current job, and/or entered into the incremental ingestion manager. The document specification allows this class to filter what is done based on the job. The connector will be connected before this method can be called.

Specified by:

processDocuments in interface org.apache.manifoldcf.crawler.interfaces.IRepositoryConnector

Overrides:

processDocuments in class org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector

Parameters:

documentIdentifiers - is the set of document identifiers to process.

statuses - are the currently-stored document versions for each document in the set of document identifiers passed in above.

activities - is the interface this method should use to queue up new document references and ingest documents.

jobMode - is an integer describing how the job is being run, whether continuous or once-only.

usesDefaultAuthority - will be true only if the authority in use for these documents is the default one.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

org.apache.manifoldcf.agents.interfaces.ServiceInterruption

handleIOException

protected static void handleIOException(java.io.IOException e)
                                 throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                                        org.apache.manifoldcf.agents.interfaces.ServiceInterruption

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

org.apache.manifoldcf.agents.interfaces.ServiceInterruption

outputConfigurationHeader

public void outputConfigurationHeader(org.apache.manifoldcf.core.interfaces.IThreadContext threadContext,
                                      org.apache.manifoldcf.core.interfaces.IHTTPOutput out,
                                      java.util.Locale locale,
                                      org.apache.manifoldcf.core.interfaces.ConfigParams parameters,
                                      java.util.List<java.lang.String> tabsArray)
                               throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                                      java.io.IOException

Output the configuration header section. This method is called in the head section of the connector's configuration page. Its purpose is to add the required tabs to the list, and to output any javascript methods that might be needed by the configuration editing HTML. The connector does not need to be connected for this method to be called.

Specified by:

outputConfigurationHeader in interface org.apache.manifoldcf.core.interfaces.IConnector

Overrides:

outputConfigurationHeader in class org.apache.manifoldcf.core.connector.BaseConnector

Parameters:

threadContext - is the local thread context.

out - is the output to which any HTML should be sent.

parameters - are the configuration parameters, as they currently exist, for this connection being configured.

tabsArray - is an array of tab names. Add to this array any tab names that are specific to the connector.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

java.io.IOException

outputConfigurationBody

public void outputConfigurationBody(org.apache.manifoldcf.core.interfaces.IThreadContext threadContext,
                                    org.apache.manifoldcf.core.interfaces.IHTTPOutput out,
                                    java.util.Locale locale,
                                    org.apache.manifoldcf.core.interfaces.ConfigParams parameters,
                                    java.lang.String tabName)
                             throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                                    java.io.IOException

Output the configuration body section. This method is called in the body section of the connector's configuration page. Its purpose is to present the required form elements for editing. The coder can presume that the HTML that is output from this configuration will be within appropriate <html>, <body>, and <form> tags. The name of the form is always "editconnection". The connector does not need to be connected for this method to be called.

Specified by:

outputConfigurationBody in interface org.apache.manifoldcf.core.interfaces.IConnector

Overrides:

outputConfigurationBody in class org.apache.manifoldcf.core.connector.BaseConnector

Parameters:

threadContext - is the local thread context.

out - is the output to which any HTML should be sent.

parameters - are the configuration parameters, as they currently exist, for this connection being configured.

tabName - is the current tab name.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

java.io.IOException

processConfigurationPost

public java.lang.String processConfigurationPost(org.apache.manifoldcf.core.interfaces.IThreadContext threadContext,
                                                 org.apache.manifoldcf.core.interfaces.IPostParameters variableContext,
                                                 java.util.Locale locale,
                                                 org.apache.manifoldcf.core.interfaces.ConfigParams parameters)
                                          throws org.apache.manifoldcf.core.interfaces.ManifoldCFException

Process a configuration post. This method is called at the start of the connector's configuration page, whenever there is a possibility that form data for a connection has been posted. Its purpose is to gather form information and modify the configuration parameters accordingly. The name of the posted form is always "editconnection". The connector does not need to be connected for this method to be called.

Specified by:

processConfigurationPost in interface org.apache.manifoldcf.core.interfaces.IConnector

Overrides:

processConfigurationPost in class org.apache.manifoldcf.core.connector.BaseConnector

Parameters:

threadContext - is the local thread context.

variableContext - is the set of variables available from the post, including binary file post information.

parameters - are the configuration parameters, as they currently exist, for this connection being configured.

Returns:

null if all is well, or a string error message if there is an error that should prevent saving of the connection (and cause a redirection to an error page).

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

viewConfiguration

public void viewConfiguration(org.apache.manifoldcf.core.interfaces.IThreadContext threadContext,
                              org.apache.manifoldcf.core.interfaces.IHTTPOutput out,
                              java.util.Locale locale,
                              org.apache.manifoldcf.core.interfaces.ConfigParams parameters)
                       throws org.apache.manifoldcf.core.interfaces.ManifoldCFException,
                              java.io.IOException

View configuration. This method is called in the body section of the connector's view configuration page. Its purpose is to present the connection information to the user. The coder can presume that the HTML that is output from this configuration will be within appropriate <html> and <body> tags. The connector does not need to be connected for this method to be called.

Specified by:

viewConfiguration in interface org.apache.manifoldcf.core.interfaces.IConnector

Overrides:

viewConfiguration in class org.apache.manifoldcf.core.connector.BaseConnector

Parameters:

threadContext - is the local thread context.

out - is the output to which any HTML should be sent.

parameters - are the configuration parameters, as they currently exist, for this connection being configured.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

java.io.IOException

getSession

protected void getSession()
                   throws org.apache.manifoldcf.core.interfaces.ManifoldCFException

Setup a session.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException

fillInServerParameters

public void fillInServerParameters(java.util.Map<java.lang.String,java.lang.String> paramMap,
                                   org.apache.manifoldcf.core.interfaces.IPasswordMapperActivity mapper,
                                   org.apache.manifoldcf.core.interfaces.ConfigParams parameters)

Fill in a Server tab configuration parameter map for calling a Velocity template.

Parameters:

paramMap - is the map to fill in

parameters - is the current set of configuration parameters

applyMetadata

protected void applyMetadata(org.apache.manifoldcf.agents.interfaces.RepositoryDocument rd,
                             com.mongodb.DBObject metadataMap)
                      throws org.apache.manifoldcf.core.interfaces.ManifoldCFException

Apply metadata to a repository document.

Parameters:

rd - is the repository document to apply the metadata to.

metadataMap - is the resultset row to use to get the metadata. All non-special columns from this row will be considered to be metadata.

Throws:

org.apache.manifoldcf.core.interfaces.ManifoldCFException