Examples of org.activeio.journal.active.JournalImpl

org.activeio.journal.active.JournalImpl
objectweb.org/">Howl project but tailored to the needs of ActiveMQ.
This Journal provides the following features:
- Conncurrent writes are batched into a single write/force done by a background thread.
- Uses preallocated logs to avoid disk fragmentation and performance degregation.
- The number and size of the preallocated logs are configurable.
- Uses direct ByteBuffers to write data to log files.
- Allows logs to grow in case of an overflow condition so that overflow exceptions are not not thrown. Grown logs that are inactivated (due to a new mark) are resized to thier original size.
- No limit on the size of the record written to the journal
- Should be possible to extend so that multiple physical disk are used concurrently to increase throughput and decrease latency.
@version $Revision: 1.1 $

        if (s == null) {
            s = new File(MuleManager.getConfiguration().getWorkingDirectory() + File.separator
                    + MuleConfiguration.DEFAULT_QUEUE_STORE);
        }
        s.mkdirs();
        journal = new JournalImpl(s, 8, LogFileManager.DEFAULT_LOGFILE_SIZE);
        journal.setJournalEventListener(this);
        marks = new ConcurrentHashMap();
        pendingMarks = new TreeSet();
        unusedMarks = new TreeSet();
        marker = new Thread(this, "JournalPersistenceStrategy");

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        this.journalType = journalType;
    }


    protected Journal createJournal() throws IOException {
        if( DEFAULT_JOURNAL_TYPE.equals(journalType) ) {
            return new JournalImpl(directory,logFileCount,logFileSize);
        }
        
        if( HOWL_JOURNAL_TYPE.equals(journalType) ) {
            try {
                Configuration config = new Configuration();

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        this.journalType = journalType;
    }


    protected Journal createJournal() throws IOException {
        if( DEFAULT_JOURNAL_TYPE.equals(journalType) ) {
            return new JournalImpl(directory,logFileCount,logFileSize);
        }
        
        if( HOWL_JOURNAL_TYPE.equals(journalType) ) {
            try {
                Configuration config = new Configuration();

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        this.journalType = journalType;
    }


    protected Journal createJournal() throws IOException {
        if( DEFAULT_JOURNAL_TYPE.equals(journalType) ) {
            return new JournalImpl(directory);
        }
        
        if( HOWL_JOURNAL_TYPE.equals(journalType) ) {
            try {
                Configuration config = new Configuration();

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        this.journalType = journalType;
    }


    protected Journal createJournal() throws IOException {
        if( DEFAULT_JOURNAL_TYPE.equals(journalType) ) {
            return new JournalImpl(directory);
        }
        
        if( HOWL_JOURNAL_TYPE.equals(journalType) ) {
            try {
                Configuration config = new Configuration();

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        this.journalType = journalType;
    }


    protected Journal createJournal() throws IOException {
        if( DEFAULT_JOURNAL_TYPE.equals(journalType) ) {
            return new JournalImpl(directory,logFileCount,logFileSize);
        }
        
        if( HOWL_JOURNAL_TYPE.equals(journalType) ) {
            try {
                Configuration config = new Configuration();

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        this.journalType = journalType;
    }


    protected Journal createJournal() throws IOException {
        if( DEFAULT_JOURNAL_TYPE.equals(journalType) ) {
            return new JournalImpl(directory);
        }
        
        if( HOWL_JOURNAL_TYPE.equals(journalType) ) {
            try {
                Configuration config = new Configuration();

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    }


    protected void setUp() throws Exception {
        File file = new File("target/journal");
        JournalTestHelper.delete(file);
        journal = new JournalImpl(file);
        packet = new ByteArrayPacket(new byte[1072]);
    }

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    }


    protected void setUp() throws Exception {
        File file = new File("target/journal");
        JournalTestHelper.delete(file);
        journal = new JournalImpl(file);
        packet = new ByteArrayPacket(new byte[1072]);
    }

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        this.journalType = journalType;
    }


    protected Journal createJournal() throws IOException {
        if( DEFAULT_JOURNAL_TYPE.equals(journalType) ) {
            return new JournalImpl(directory);
        }
        
        if( HOWL_JOURNAL_TYPE.equals(journalType) ) {
            try {
                Configuration config = new Configuration();

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