Package edu.ucsb.nceas.metacat.admin

Class SolrAdmin

java.lang.Object

edu.ucsb.nceas.metacat.admin.MetacatAdmin

edu.ucsb.nceas.metacat.admin.SolrAdmin

public class SolrAdmin
extends MetacatAdmin

Control the display of the Solr configuration page and the processing of the configuration values.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	ACTION
static final String	CREATE
static final String	CREATEORUPDATEWITHWARN
static final String	CREATEWITHWARN
static final String	CURRENTCOREINSTANCEDIR
static final String	EXISTINGCORE
static final String	KEEP
static final String	NEWSOLCORENAME
static final String	NEWSOLRCORE
static final String	NEWSOLRCOREORNOT
static final String	REGISTER
static final String	REGISTERANDUPDATE
static final String	REGISTERANDUPDATEWITHWARN
static final String	REGISTERWITHWARN
static final String	SOLRCORENAME
static final String	UNKNOWN
static final String	UPDATE

Fields inherited from class edu.ucsb.nceas.metacat.admin.MetacatAdmin

FAILURE, IN_PROGRESS, SUCCESS

Method Summary

Modifier and Type	Method	Description
protected void	checkSolrStatus(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)	Check the current solr status - such as if the solr core/solr-home directory exists, and send back actions which user can choose based on the status.
void	configureSolr(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)	Handle configuration of the solr the first time that Metacat starts or when it is explicitly called.
static SolrAdmin	getInstance()	Get the single instance of SolrDAdmin.
protected static Vector<DBVersion>	getNonUpgradedSolrVersions()	Get a list of db versions in which the solr db hasn't been upgraded
protected static Map<String,String>	getSolrUpdateClasses()	Get the map of upgrade classes should be run in the upgrade.
protected void	handleWarningActions(String action, javax.servlet.http.HttpServletRequest request, Vector<String> processingErrors)	Method to handle a warning message in the request, which have user's response.
protected static boolean	isFreshInstall()	Check if the db is a fresh installation.
protected void	processResponse(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)	Process the user's choices to the solr server
protected static void	updateSolrStatus(String version, boolean status)	Update the solr_upgraded status for the given metacat version
protected Vector<String>	validateOptions(javax.servlet.http.HttpServletRequest request)	Validate the most important configuration options submitted by the user.

Methods inherited from class edu.ucsb.nceas.metacat.admin.MetacatAdmin

updateUpgradeStatus

Methods inherited from class java.lang.Object

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

Field Details

CREATE

public static final String CREATE

See Also:

• Constant Field Values

REGISTER

public static final String REGISTER

See Also:

• Constant Field Values

REGISTERANDUPDATE

public static final String REGISTERANDUPDATE

See Also:

• Constant Field Values

CREATEWITHWARN

public static final String CREATEWITHWARN

See Also:

• Constant Field Values

CREATEORUPDATEWITHWARN

public static final String CREATEORUPDATEWITHWARN

See Also:

• Constant Field Values

REGISTERWITHWARN

public static final String REGISTERWITHWARN

See Also:

• Constant Field Values

REGISTERANDUPDATEWITHWARN

public static final String REGISTERANDUPDATEWITHWARN

See Also:

• Constant Field Values

KEEP

public static final String KEEP

See Also:

• Constant Field Values

UPDATE

public static final String UPDATE

See Also:

• Constant Field Values

UNKNOWN

public static final String UNKNOWN

See Also:

• Constant Field Values

ACTION

public static final String ACTION

See Also:

• Constant Field Values

CURRENTCOREINSTANCEDIR

public static final String CURRENTCOREINSTANCEDIR

See Also:

• Constant Field Values

NEWSOLRCOREORNOT

public static final String NEWSOLRCOREORNOT

See Also:

• Constant Field Values

NEWSOLRCORE

public static final String NEWSOLRCORE

See Also:

• Constant Field Values

EXISTINGCORE

public static final String EXISTINGCORE

See Also:

• Constant Field Values

SOLRCORENAME

public static final String SOLRCORENAME

See Also:

• Constant Field Values

NEWSOLCORENAME

public static final String NEWSOLCORENAME

See Also:

• Constant Field Values

Method Details

getInstance

public static SolrAdmin getInstance()
                             throws AdminException

Get the single instance of SolrDAdmin.

Returns:

the single instance of SolrAdmin

Throws:

AdminException

configureSolr

public void configureSolr(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response)
                   throws AdminException

Handle configuration of the solr the first time that Metacat starts or when it is explicitly called. Collect necessary update information from the administrator.

Parameters:

request - the http request information

response - the http response to be sent back to the client

Throws:

AdminException

checkSolrStatus

protected void checkSolrStatus(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response)
                        throws AdminException

Check the current solr status - such as if the solr core/solr-home directory exists, and send back actions which user can choose based on the status.

Parameters:

request - the request from the client

response - the response which will be sent back to the client

Throws:

AdminException

processResponse

protected void processResponse(javax.servlet.http.HttpServletRequest request,
 javax.servlet.http.HttpServletResponse response)
                        throws AdminException

Process the user's choices to the solr server

Parameters:

request - the request from the client

response - the response which will be sent back to the client

Throws:

AdminException

handleWarningActions

protected void handleWarningActions(String action,
 javax.servlet.http.HttpServletRequest request,
 Vector<String> processingErrors)
                             throws edu.ucsb.nceas.utilities.GeneralPropertyException,
AdminException,
org.dataone.service.exceptions.UnsupportedType,
ParserConfigurationException,
IOException,
SAXException,
org.apache.solr.client.solrj.SolrServerException,
ServiceException,
edu.ucsb.nceas.utilities.UtilException

Method to handle a warning message in the request, which have user's response.

Parameters:

action - the action needs to be handled

request - the request from the client

processingErrors - the vector to store error message

Throws:

edu.ucsb.nceas.utilities.GeneralPropertyException

AdminException

org.dataone.service.exceptions.UnsupportedType

ParserConfigurationException

IOException

SAXException

org.apache.solr.client.solrj.SolrServerException

ServiceException

edu.ucsb.nceas.utilities.UtilException

validateOptions

protected Vector<String> validateOptions(javax.servlet.http.HttpServletRequest request)

Validate the most important configuration options submitted by the user.

Specified by:

validateOptions in class MetacatAdmin

Returns:

a vector holding error message for any fields that fail validation.

getSolrUpdateClasses

protected static Map<String,String> getSolrUpdateClasses()
                                                  throws SQLException,
edu.ucsb.nceas.utilities.PropertyNotFoundException

Get the map of upgrade classes should be run in the upgrade. If this is a fresh installation, no classes will be added to it. The key of map is the db version and the value is the update class.

Returns:

the map of upgrade classes. An empty map will be return if nothing is found.

Throws:

SQLException

edu.ucsb.nceas.utilities.PropertyNotFoundException

getNonUpgradedSolrVersions

protected static Vector<DBVersion> getNonUpgradedSolrVersions()
                                                       throws SQLException,
edu.ucsb.nceas.utilities.PropertyNotFoundException

Get a list of db versions in which the solr db hasn't been upgraded

Returns:

the list of db versions in which the solr db hasn't been upgraded. An empty vector will be returned if nothing was found.

Throws:

SQLException

edu.ucsb.nceas.utilities.PropertyNotFoundException

isFreshInstall

protected static boolean isFreshInstall()
                                 throws SQLException

Check if the db is a fresh installation. If the db_version has only one row, we consider it a fresh installation.

Returns:

ture if it is; otherwise false.

Throws:

SQLException

updateSolrStatus

protected static void updateSolrStatus(String version,
 boolean status)
                                throws SQLException

Update the solr_upgraded status for the given metacat version

Parameters:

version - the version of Metacat will be updated in the db_version table.

status - the status will be applied.

Throws:

SQLException