org.apache.james.mime4j.mboxiterator

Class MboxIterator

java.lang.Object

org.apache.james.mime4j.mboxiterator.MboxIterator

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, java.lang.Iterable<CharBufferWrapper>

public class MboxIterator
extends java.lang.Object
implements java.lang.Iterable<CharBufferWrapper>, java.io.Closeable

Class that provides an iterator over email messages inside an mbox file. An mbox file is a sequence of email messages separated by From_ lines.

Description ot the file format:

• http://tools.ietf.org/html/rfc4155
• http://qmail.org/man/man5/mbox.html

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MboxIterator.Builder
private class	MboxIterator.MessageIterator

Field Summary

Fields

Modifier and Type	Field and Description
private java.nio.MappedByteBuffer	byteBuffer
private java.nio.charset.CharsetDecoder	DECODER
private boolean	endOfInputFlag Flag to signal end of input to CharsetDecoder.decode(java.nio.ByteBuffer) .
private int	findEnd
private int	findStart
private boolean	fromLineFound
private java.util.regex.Matcher	fromLineMatcher
private int	maxMessageSize
private java.io.File	mbox
private java.nio.CharBuffer	mboxCharBuffer
private java.util.regex.Pattern	MESSAGE_START
private java.io.FileInputStream	theFile

Constructor Summary

Constructors

Modifier	Constructor and Description
private	MboxIterator(java.io.File mbox, java.nio.charset.Charset charset, java.lang.String regexpPattern, int regexpFlags, int MAX_MESSAGE_SIZE)

Method Summary

Modifier and Type	Method and Description
static java.lang.String	bufferDetailsToString(java.nio.Buffer buffer) Utility method to log important details about buffers.
void	close()
private void	decodeNextCharBuffer()
static MboxIterator.Builder	fromFile(java.io.File filePath)
static MboxIterator.Builder	fromFile(java.lang.String file)
protected void	initMboxIterator() initialize the Mailbox iterator
java.util.Iterator<CharBufferWrapper>	iterator()
private void	saveFindPositions(java.util.regex.Matcher lineMatcher)
private void	updateEndOfInputFlag()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

theFile

private final java.io.FileInputStream theFile

mboxCharBuffer

private final java.nio.CharBuffer mboxCharBuffer

fromLineMatcher

private java.util.regex.Matcher fromLineMatcher

fromLineFound

private boolean fromLineFound

byteBuffer

private final java.nio.MappedByteBuffer byteBuffer

DECODER

private final java.nio.charset.CharsetDecoder DECODER

endOfInputFlag

private boolean endOfInputFlag

Flag to signal end of input to CharsetDecoder.decode(java.nio.ByteBuffer) .

maxMessageSize

private final int maxMessageSize

MESSAGE_START

private final java.util.regex.Pattern MESSAGE_START

findStart

private int findStart

findEnd

private int findEnd

mbox

private final java.io.File mbox

Constructor Detail

MboxIterator

private MboxIterator(java.io.File mbox,
                     java.nio.charset.Charset charset,
                     java.lang.String regexpPattern,
                     int regexpFlags,
                     int MAX_MESSAGE_SIZE)
              throws java.io.FileNotFoundException,
                     java.io.IOException,
                     java.io.CharConversionException

Throws:

java.io.FileNotFoundException

java.io.IOException

java.io.CharConversionException

Method Detail

initMboxIterator

protected void initMboxIterator()
                         throws java.io.IOException

initialize the Mailbox iterator

Throws:

java.io.IOException

java.io.CharConversionException

decodeNextCharBuffer

private void decodeNextCharBuffer()
                           throws java.io.CharConversionException

Throws:

java.io.CharConversionException

updateEndOfInputFlag

private void updateEndOfInputFlag()

saveFindPositions

private void saveFindPositions(java.util.regex.Matcher lineMatcher)

iterator

public java.util.Iterator<CharBufferWrapper> iterator()

Specified by:

iterator in interface java.lang.Iterable<CharBufferWrapper>

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.io.IOException

fromFile

public static MboxIterator.Builder fromFile(java.io.File filePath)

fromFile

public static MboxIterator.Builder fromFile(java.lang.String file)

bufferDetailsToString

public static java.lang.String bufferDetailsToString(java.nio.Buffer buffer)

Utility method to log important details about buffers.

Parameters:

buffer -