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Class grendel.storage.MailSummaryFileGrendel

java.lang.Object
   |
   +----grendel.storage.MailSummaryFile
           |
           +----grendel.storage.MailSummaryFileGrendel

This class knows how to read and write a mail folder summary file. This is a different format than that used by any previous version of Mozilla; it's similar to the 2.0/3.0 format, and totally unlike the 4.0/5.0 format.

class  MailSummaryFileGrendel
     extends grendel.storage.MailSummaryFile
{
          // Constructors 1
     MailSummaryFileGrendel(BerkeleyFolder);

          // Methods 7
     protected synchronized void getMessageCounts();
     synchronized long readSummaryFile(InputStream) throws IOException;
     protected void salvageMessage(BerkeleyMessage, Object);
     synchronized void updateSummaryFile() throws IOException;
     boolean writable();
     protected void writeSummaryData(OutputStream) throws IOException, SecurityException;
     void writeSummaryFile() throws IOException;
}

• MailSummaryFileGrendel

   MailSummaryFileGrendel(BerkeleyFolder folder) 

• readSummaryFile

   synchronized long readSummaryFile(InputStream sum)  throws IOException

Parses a Grendel (version 6) mail summary file, and adds the described messages to the associated Folder object.

Overrides:

readSummaryFile in class MailSummaryFile

• salvageMessage

   protected void salvageMessage(BerkeleyMessage m, 
                                 Object salvage_object) 

Assumes the salvage table contains Long values which are flags in X-Mozilla-Status form.

Overrides:

salvageMessage in class MailSummaryFile

• getMessageCounts

   protected synchronized void getMessageCounts() 

Read only enough of the file to fill in the values of total_message_count, undeleted_message_count, unread_message_count, and deleted_message_bytes.

Overrides:

getMessageCounts in class MailSummaryFile

• writable

   boolean writable() 

Returns true, since this class implements writeSummaryFile().

Overrides:

writable in class MailSummaryFile

• writeSummaryFile

   void writeSummaryFile()  throws IOException

Write a summary file for the associated folder, in the Grendel format (version 6.)

Overrides:

writeSummaryFile in class MailSummaryFile

• writeSummaryData

   protected void writeSummaryData(OutputStream out)  throws IOException, SecurityException

• updateSummaryFile

   synchronized void updateSummaryFile()  throws IOException

Called when the folder's disk file has been appended to by this program. (As opposed to, an unexpected, unknown change by some other program.) This overwrites certain fields in a Grendel-format summary file. Those fields are:

• FOLDER_SIZE
• FOLDER_DATE
• NMSGS
• NVALIDMSGS
• NUNREADMSGS
• DELETED_BYTES

Overrides:

updateSummaryFile in class MailSummaryFile

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