jpl.mipl.mdms.FileService.komodo.services.query.server
Class AtlasIISearchService

java.lang.Object
  jpl.mipl.mdms.FileService.komodo.services.query.server.AtlasIISearchService

All Implemented Interfaces:

Closeable, QSearchService

public class AtlasIISearchService
extends Object
implements QSearchService

Purpose: Implementation of the QSearchService for the Atlas II service.

   Copyright 2007, California Institute of Technology.
   ALL RIGHTS RESERVED.
   U.S. Government Sponsorship acknowledge. 2007.
   

 ============================================================================
 Modification History :
 ----------------------

 Date              Who              What
 ----------------------------------------------------------------------------
 08/07/2007        Nick             Initial Release
 ============================================================================
 

Version:

$Id: AtlasIISearchService.java,v 1.9 2007/09/24 23:34:50 ntt Exp $

Author:

Nicholas Toole (Nicholas.T.Toole@jpl.nasa.gov)

Field Summary

static String	ATLAS_KEY_FILETYPE
static String	ATLAS_KEY_NAME
static String	ATLAS_KEY_SIZE
static String	ATLAS_KEY_TIME
protected URL	configLocation
static String	FEI_KEY_FILETYPE
static String	FEI_KEY_NAME
static String	FEI_KEY_SIZE
static String	FEI_KEY_TIME
protected boolean	isClosed
protected Properties	properties
protected URL	serviceLocation

Constructor Summary

AtlasIISearchService()
Constructor

AtlasIISearchService(URL serviceLocation)
Constructor with initial service location

Method Summary

void	close() Closes this service.
String	getProperty(String name) Returns the value of a property.
void	init()
boolean	isClosed() Implementation of the Closeable interface.
boolean	performQuery(QSession session) Performs the search query using Atlas II.
void	setProperty(String name, String value) Sets a property.
void	setServiceUrl(URL serviceLocation) Sets the service location URL
protected String	translateConstraints(String original) Performs a translation of the SQL_like query constraints replacing the generic keywords with Atlas-specific names.

Methods inherited from class java.lang.Object

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

Field Detail

ATLAS_KEY_FILETYPE

public static String ATLAS_KEY_FILETYPE

ATLAS_KEY_NAME

public static String ATLAS_KEY_NAME

ATLAS_KEY_SIZE

public static String ATLAS_KEY_SIZE

ATLAS_KEY_TIME

public static String ATLAS_KEY_TIME

FEI_KEY_FILETYPE

public static String FEI_KEY_FILETYPE

FEI_KEY_NAME

public static String FEI_KEY_NAME

FEI_KEY_SIZE

public static String FEI_KEY_SIZE

FEI_KEY_TIME

public static String FEI_KEY_TIME

isClosed

protected boolean isClosed

serviceLocation

protected URL serviceLocation

configLocation

protected URL configLocation

properties

protected Properties properties

Constructor Detail

AtlasIISearchService

public AtlasIISearchService()

Constructor

AtlasIISearchService

public AtlasIISearchService(URL serviceLocation)

Constructor with initial service location

Parameters:

serviceLocation - URL of Atlas service location

Method Detail

setServiceUrl

public void setServiceUrl(URL serviceLocation)

Sets the service location URL

Specified by:

setServiceUrl in interface QSearchService

Parameters:

URL - of service location

init

public void init()

setProperty

public void setProperty(String name,
                        String value)

Sets a property.

Specified by:

setProperty in interface QSearchService

Parameters:

name - Property name

value - Property value

getProperty

public String getProperty(String name)

Returns the value of a property.

Specified by:

getProperty in interface QSearchService

Parameters:

name - Property name

Returns:

Property value, possibly null

close

public void close()

Closes this service. If another thread is in the performQuery() method, then it will soon exit, even if results remain.

Specified by:

close in interface Closeable

performQuery

public boolean performQuery(QSession session)

Performs the search query using Atlas II. The user and system queries are retrieved from the session data, and results are added to the same structure.

Specified by:

performQuery in interface QSearchService

Parameters:

session - Session requesting the query

Returns:

True if query completed fully, false if query was interrupted with a close() call.

isClosed

public boolean isClosed()

Implementation of the Closeable interface. Returns true if this service has been closed, false otherwise.

Specified by:

isClosed in interface Closeable

Returns:

Closed state

translateConstraints

protected String translateConstraints(String original)

Performs a translation of the SQL_like query constraints replacing the generic keywords with Atlas-specific names.

Parameters:

original - SQL-string from a QueryConstraints instance

Returns:

Translated SQL-string with Atlas names