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Class Acme.Nnrpd.MultiplexNewsDb

java.lang.Object
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   +----Acme.Nnrpd.NewsDb
           |
           +----Acme.Nnrpd.MultiplexNewsDb

public class MultiplexNewsDb
extends NewsDb

Multiplex netnews database.

This is a news database that forwards requests to different sub-databases based on the group name.

Fetch the software.
Fetch the entire Acme package.

MultiplexNewsDb(): Constructor.

add(String, NewsDb): Add a sub-database for a given pattern of groups.
authorize(String, String): Attempt authorization.
close(): Shut down the news database.
getArticle(NewsDbGroup, int): Get an article by group and number.
getArticle(String): Get an article by message-id.
getGroup(String): Get a group by name.
getGroups(): Get an enumeration of all the groups.
getGroups(long): Get an enumeration of all groups created after a given time.
getGroups(long, String): Get an enumeration of all groups created after a given time that match a given distributions pattern.
getHeaders(String[], NewsDbGroup, int, int): Get specified headers from a range of articles by group and number.
getMessageIds(String, long): Get an enumeration of all message-ids received after a given time in groups matching the given pattern.
getMessageIds(String, long, String): Get an enumeration of all message-ids received after a given time in groups matching the given pattern, that also match the given distributions pattern.
getPostingOk(): Whether posting is allowed.
post(String): Post an article.

MultiplexNewsDb

 public MultiplexNewsDb() throws NewsDbException

Constructor.

Throws: NewsDbException: if something goes wrong

add

 public void add(String groupsPat,
                 NewsDb newsDb)

Add a sub-database for a given pattern of groups.

authorize

 public boolean authorize(String user,
                          String password) throws NewsDbException

Attempt authorization.

Throws: NewsDbException: if something goes wrong
Overrides:: authorize in class NewsDb

getPostingOk

 public boolean getPostingOk() throws NewsDbException

Whether posting is allowed.

Throws: NewsDbException: if something goes wrong
Overrides:: getPostingOk in class NewsDb

getGroup

 public NewsDbGroup getGroup(String groupName) throws NewsDbException

Get a group by name.

Throws: NewsDbException: if something goes wrong
Overrides:: getGroup in class NewsDb

getArticle

 public NewsDbArticle getArticle(NewsDbGroup group,
                                 int artNum) throws NewsDbException

Get an article by group and number.

Throws: NewsDbException: if something goes wrong
Overrides:: getArticle in class NewsDb

getArticle

 public NewsDbArticle getArticle(String messageId) throws NewsDbException

Get an article by message-id.

Throws: NewsDbException: if something goes wrong
Overrides:: getArticle in class NewsDb

getHeaders

 public String[][] getHeaders(String names[],
                              NewsDbGroup group,
                              int firstArtNum,
                              int lastArtNum) throws NewsDbException

Get specified headers from a range of articles by group and number. Some implementations have special faster methods for getting headers from articles, e.g. an XOVER command to a remote server or a local overview database. If no such fast method is available, this returns null and the caller should fall back on conventional means.

Throws: NewsDbException: if something goes wrong
Overrides:: getHeaders in class NewsDb

getGroups

 public Enumeration getGroups() throws NewsDbException

Get an enumeration of all the groups.

Throws: NewsDbException: if something goes wrong
Overrides:: getGroups in class NewsDb

getGroups

 public Enumeration getGroups(long since) throws NewsDbException

Get an enumeration of all groups created after a given time.

Throws: NewsDbException: if something goes wrong
Overrides:: getGroups in class NewsDb

getGroups

 public Enumeration getGroups(long since,
                              String distsPat) throws NewsDbException

Get an enumeration of all groups created after a given time that match a given distributions pattern.

Throws: NewsDbException: if something goes wrong
Overrides:: getGroups in class NewsDb

getMessageIds

 public Enumeration getMessageIds(String groupsPat,
                                  long since) throws NewsDbException

Get an enumeration of all message-ids received after a given time in groups matching the given pattern.

Throws: NewsDbException: if something goes wrong
Overrides:: getMessageIds in class NewsDb

getMessageIds

 public Enumeration getMessageIds(String groupsPat,
                                  long since,
                                  String distsPat) throws NewsDbException

Get an enumeration of all message-ids received after a given time in groups matching the given pattern, that also match the given distributions pattern.

Throws: NewsDbException: if something goes wrong
Overrides:: getMessageIds in class NewsDb

post

 public void post(String text) throws NewsDbException

Post an article.

Throws: NewsDbException: if something goes wrong
Overrides:: post in class NewsDb

close

 public void close()

Shut down the news database.

Overrides:: close in class NewsDb

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