Package org.bluezoo.gumdrop.mailbox.index

Class MessageIndexBuilder

java.lang.Object

org.bluezoo.gumdrop.mailbox.index.MessageIndexBuilder

public class MessageIndexBuilder
extends Object

Builds MessageIndexEntry objects by parsing messages using the MessageParser.

This builder extracts all searchable header fields from messages and stores them in lowercase for case-insensitive searching.

Usage:

 MessageIndexBuilder builder = new MessageIndexBuilder();
 MessageIndexEntry entry = builder.buildEntry(
     uid, messageNumber, size, flags, location, messageChannel);
 

Author:

Chris Burdess

Constructor Summary

Constructors

Constructor	Description
MessageIndexBuilder()

Method Summary

Modifier and Type	Method	Description
MessageIndexEntry	buildEntry(long uid, int messageNumber, long size, long internalDate, Set<Flag> flags, String location, ReadableByteChannel channel)	Builds an index entry for a message.
static List<String>	extractAddresses(String addresses)	Extracts individual email addresses from a concatenated address string.
static List<String>	extractKeywords(String keywords)	Extracts individual keywords from a comma-separated keyword string.

Methods inherited from class java.lang.Object

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

Constructor Details

MessageIndexBuilder

public MessageIndexBuilder()

Method Details

buildEntry

public MessageIndexEntry buildEntry(long uid,
 int messageNumber,
 long size,
 long internalDate,
 Set<Flag> flags,
 String location,
 ReadableByteChannel channel)
                             throws IOException

Builds an index entry for a message.

Parameters:

uid - the message UID

messageNumber - the message sequence number

size - the message size in bytes

internalDate - the internal date (when received), or 0 if unknown

flags - the message flags

location - the message location (filename for Maildir, offset for mbox)

channel - readable channel for message content

Returns:

the built index entry

Throws:

IOException - if reading or parsing fails

extractAddresses

public static List<String> extractAddresses(String addresses)

Extracts individual email addresses from a concatenated address string. Used for building reverse indexes.

Parameters:

addresses - concatenated address string

Returns:

list of individual addresses

extractKeywords

public static List<String> extractKeywords(String keywords)

Extracts individual keywords from a comma-separated keyword string. Used for building reverse indexes.

Parameters:

keywords - comma-separated keywords

Returns:

list of individual keywords