net.named_data.jndn.encrypt

Class Sqlite3ProducerDb

java.lang.Object

net.named_data.jndn.encrypt.ProducerDb

net.named_data.jndn.encrypt.Sqlite3ProducerDbBase

net.named_data.jndn.encrypt.Sqlite3ProducerDb

public class Sqlite3ProducerDb
extends Sqlite3ProducerDbBase

Sqlite3ProducerDb extends ProducerDb to implement storage of keys for the producer using SQLite3. It contains one table that maps time slots (to the nearest hour) to the content key created for that time slot.

Note:

This class is an experimental feature. The API may change.

Nested Class Summary

Nested classes/interfaces inherited from class net.named_data.jndn.encrypt.ProducerDb

ProducerDb.Error

Field Summary

Fields inherited from class net.named_data.jndn.encrypt.Sqlite3ProducerDbBase

DELETE_deleteContentKey, INITIALIZATION1, INITIALIZATION2, INSERT_addContentKey, SELECT_getContentKey, SELECT_hasContentKey

Constructor Summary

Constructors

Constructor and Description
Sqlite3ProducerDb(String databaseFilePath) Create an Sqlite3ProducerDb to use the given SQLite3 file.

Method Summary

Modifier and Type	Method and Description
void	addContentKey(double timeSlot, Blob key) Add key as the content key for the hour covering timeSlot.
void	deleteContentKey(double timeSlot) Delete the content key for the hour covering timeSlot.
Blob	getContentKey(double timeSlot) Get the content key for the hour covering timeSlot.
boolean	hasContentKey(double timeSlot) Check if a content key exists for the hour covering timeSlot.

Methods inherited from class net.named_data.jndn.encrypt.ProducerDb

getFixedTimeSlot

Methods inherited from class java.lang.Object

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

Constructor Detail

Sqlite3ProducerDb

public Sqlite3ProducerDb(String databaseFilePath)
                  throws ProducerDb.Error

Create an Sqlite3ProducerDb to use the given SQLite3 file.

Parameters:

databaseFilePath - The path of the SQLite file.

Throws:

ProducerDb.Error - for a database error.

Method Detail

hasContentKey

public boolean hasContentKey(double timeSlot)
                      throws ProducerDb.Error

Check if a content key exists for the hour covering timeSlot.

Specified by:

hasContentKey in class ProducerDb

Parameters:

timeSlot - The time slot as milliseconds since Jan 1, 1970 UTC.

Returns:

True if there is a content key for timeSlot.

Throws:

ProducerDb.Error - for a database error.

getContentKey

public Blob getContentKey(double timeSlot)
                   throws ProducerDb.Error

Get the content key for the hour covering timeSlot.

Specified by:

getContentKey in class ProducerDb

Parameters:

timeSlot - The time slot as milliseconds since Jan 1, 1970 UTC.

Returns:

A Blob with the encoded key.

Throws:

ProducerDb.Error - if there is no key covering timeSlot or other database error.

addContentKey

public void addContentKey(double timeSlot,
                          Blob key)
                   throws ProducerDb.Error

Add key as the content key for the hour covering timeSlot.

Specified by:

addContentKey in class ProducerDb

Parameters:

timeSlot - The time slot as milliseconds since Jan 1, 1970 UTC.

key - The encoded key.

Throws:

ProducerDb.Error - if a key for the same hour already exists in the database, or other database error.

deleteContentKey

public void deleteContentKey(double timeSlot)
                      throws ProducerDb.Error

Delete the content key for the hour covering timeSlot. If there is no key for the time slot, do nothing.

Specified by:

deleteContentKey in class ProducerDb

Parameters:

timeSlot - The time slot as milliseconds since Jan 1, 1970 UTC.

Throws:

ProducerDb.Error - for a database error.