Package org.apache.activemq.kaha.impl.async

Examples of org.apache.activemq.kaha.impl.async.Location


            referenceStore.recoverNextMessages(maxReturned, recoveryListener);
        }
    }

    Message getMessage(ReferenceData data) throws IOException {
        Location location = new Location();
        location.setDataFileId(data.getFileId());
        location.setOffset(data.getOffset());
        DataStructure rc = peristenceAdapter.readCommand(location);
        try {
            return (Message)rc;
        } catch (ClassCastException e) {
            throw new IOException("Could not read message  at location " + location + ", expected a message, but got: " + rc);
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        // checkpoint tx operations in to long term store until they are
        // committed.
        // But we keep track of the first location of an operation
        // that was associated with an active tx. The journal can not
        // roll over active tx records.
        Location minimumLocationInUse = null;
        synchronized (inflightTransactions) {
            for (Iterator<AMQTx> iter = inflightTransactions.values().iterator(); iter.hasNext();) {
                AMQTx tx = iter.next();
                Location location = tx.getLocation();
                if (minimumLocationInUse == null || location.compareTo(minimumLocationInUse) < 0) {
                    minimumLocationInUse = location;
                }
            }
        }
        synchronized (preparedTransactions) {
            for (Iterator<AMQTx> iter = preparedTransactions.values().iterator(); iter.hasNext();) {
                AMQTx tx = iter.next();
                Location location = tx.getLocation();
                if (minimumLocationInUse == null || location.compareTo(minimumLocationInUse) < 0) {
                    minimumLocationInUse = location;
                }
            }
            return minimumLocationInUse;
        }
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    public AMQTxMarshaller(WireFormat wireFormat) {
        this.wireFormat = wireFormat;
    }

    public AMQTx readPayload(DataInput dataIn) throws IOException {
        Location location = new Location();
        location.readExternal(dataIn);
        AMQTx result = new AMQTx(location);
        int size = dataIn.readInt();
        for (int i = 0; i < size; i++) {
            AMQTxOperation op = new AMQTxOperation();
            op.readExternal(wireFormat, dataIn);
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        if (deleteAllMessages) {
            asyncDataManager.delete();
            try {
                JournalTrace trace = new JournalTrace();
                trace.setMessage("DELETED " + new Date());
                Location location = asyncDataManager.write(wireFormat.marshal(trace), false);
                asyncDataManager.setMark(location, true);
                LOG.info("Journal deleted: ");
                deleteAllMessages = false;
            } catch (IOException e) {
                throw e;
            } catch (Throwable e) {
                throw IOExceptionSupport.create(e);
            }
            referenceStoreAdapter.deleteAllMessages();
        }
        referenceStoreAdapter.start();
        Set<Integer> files = referenceStoreAdapter.getReferenceFileIdsInUse();
        LOG.info("Active data files: " + files);
        checkpointTask = taskRunnerFactory.createTaskRunner(new Task() {

            public boolean iterate() {
                doCheckpoint();
                return false;
            }
        }, "ActiveMQ Journal Checkpoint Worker");
        createTransactionStore();

        //
        // The following was attempting to reduce startup times by avoiding the
        // log
        // file scanning that recovery performs. The problem with it is that XA
        // transactions
        // only live in transaction log and are not stored in the reference
        // store, but they still
        // need to be recovered when the broker starts up.

        if (isForceRecoverReferenceStore()
                || (isRecoverReferenceStore() && !referenceStoreAdapter
                        .isStoreValid())) {
            LOG.warn("The ReferenceStore is not valid - recovering ...");
            recover();
            LOG.info("Finished recovering the ReferenceStore");
        } else {
            Location location = writeTraceMessage("RECOVERED " + new Date(),
                    true);
            asyncDataManager.setMark(location, true);
            // recover transactions
            getTransactionStore().setPreparedTransactions(
                    referenceStoreAdapter.retrievePreparedState());
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        try {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Checkpoint started.");
            }

            Location currentMark = asyncDataManager.getMark();
            Location newMark = currentMark;
            Iterator<AMQMessageStore> queueIterator = queues.values().iterator();
            while (queueIterator.hasNext()) {
                final AMQMessageStore ms = queueIterator.next();
                Location mark = (Location)ms.getMark();
                if (mark != null && (newMark == null || mark.compareTo(newMark) > 0)) {
                    newMark = mark;
                }
            }
            Iterator<AMQTopicMessageStore> topicIterator = topics.values().iterator();
            while (topicIterator.hasNext()) {
                final AMQTopicMessageStore ms = topicIterator.next();
                Location mark = (Location)ms.getMark();
                if (mark != null && (newMark == null || mark.compareTo(newMark) > 0)) {
                    newMark = mark;
                }
            }
            try {
                if (newMark != currentMark) {
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            }
            Integer lastDataFile = asyncDataManager.getCurrentDataFileId();  
            inProgress.add(lastDataFile);
            lastDataFile = asyncDataManager.getMark().getDataFileId();
            inProgress.addAll(referenceStoreAdapter.getReferenceFileIdsInUse());
            Location lastActiveTx = transactionStore.checkpoint();
            if (lastActiveTx != null) {
                lastDataFile = Math.min(lastDataFile, lastActiveTx.getDataFileId());
            }
            LOG.debug("lastDataFile: " + lastDataFile);
            asyncDataManager.consolidateDataFilesNotIn(inProgress, lastDataFile - 1);
        } catch (IOException e) {
            LOG.error("Could not cleanup data files: " + e, e);
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     * @throws IllegalStateException
     */
    private void recover() throws IllegalStateException, IOException {
        referenceStoreAdapter.clearMessages();
        referenceStoreAdapter.recoverState();
        Location pos = null;
        int redoCounter = 0;
        LOG.info("Journal Recovery Started from: " + asyncDataManager);
        long start = System.currentTimeMillis();
        ConnectionContext context = new ConnectionContext(new NonCachedMessageEvaluationContext());
        // While we have records in the journal.
        while ((pos = asyncDataManager.getNextLocation(pos)) != null) {
            ByteSequence data = asyncDataManager.read(pos);
            DataStructure c = (DataStructure)wireFormat.unmarshal(data);
            if (c instanceof Message) {
                Message message = (Message)c;
                AMQMessageStore store = (AMQMessageStore)createMessageStore(message.getDestination());
                if (message.isInTransaction()) {
                    transactionStore.addMessage(store, message, pos);
                } else {
                    if (store.replayAddMessage(context, message, pos)) {
                        redoCounter++;
                    }
                }
            } else {
                switch (c.getDataStructureType()) {
                case JournalQueueAck.DATA_STRUCTURE_TYPE: {
                    JournalQueueAck command = (JournalQueueAck)c;
                    AMQMessageStore store = (AMQMessageStore)createMessageStore(command.getDestination());
                    if (command.getMessageAck().isInTransaction()) {
                        transactionStore.removeMessage(store, command.getMessageAck(), pos);
                    } else {
                        if (store.replayRemoveMessage(context, command.getMessageAck())) {
                            redoCounter++;
                        }
                    }
                }
                    break;
                case JournalTopicAck.DATA_STRUCTURE_TYPE: {
                    JournalTopicAck command = (JournalTopicAck)c;
                    AMQTopicMessageStore store = (AMQTopicMessageStore)createMessageStore(command.getDestination());
                    if (command.getTransactionId() != null) {
                        transactionStore.acknowledge(store, command, pos);
                    } else {
                        if (store.replayAcknowledge(context, command.getClientId(), command.getSubscritionName(), command.getMessageId())) {
                            redoCounter++;
                        }
                    }
                }
                    break;
                case JournalTransaction.DATA_STRUCTURE_TYPE: {
                    JournalTransaction command = (JournalTransaction)c;
                    try {
                        // Try to replay the packet.
                        switch (command.getType()) {
                        case JournalTransaction.XA_PREPARE:
                            transactionStore.replayPrepare(command.getTransactionId());
                            break;
                        case JournalTransaction.XA_COMMIT:
                        case JournalTransaction.LOCAL_COMMIT:
                            AMQTx tx = transactionStore.replayCommit(command.getTransactionId(), command.getWasPrepared());
                            if (tx == null) {
                                break; // We may be trying to replay a commit
                            }
                            // that
                            // was already committed.
                            // Replay the committed operations.
                            tx.getOperations();
                            for (Iterator iter = tx.getOperations().iterator(); iter.hasNext();) {
                                AMQTxOperation op = (AMQTxOperation)iter.next();
                                if (op.replay(this, context)) {
                                    redoCounter++;
                                }
                            }
                            break;
                        case JournalTransaction.LOCAL_ROLLBACK:
                        case JournalTransaction.XA_ROLLBACK:
                            transactionStore.replayRollback(command.getTransactionId());
                            break;
                        default:
                            throw new IOException("Invalid journal command type: " + command.getType());
                        }
                    } catch (IOException e) {
                        LOG.error("Recovery Failure: Could not replay: " + c + ", reason: " + e, e);
                    }
                }
                    break;
                case JournalTrace.DATA_STRUCTURE_TYPE:
                    JournalTrace trace = (JournalTrace)c;
                    LOG.debug("TRACE Entry: " + trace.getMessage());
                    break;
                default:
                    LOG.error("Unknown type of record in transaction log which will be discarded: " + c);
                }
            }
        }
        Location location = writeTraceMessage("RECOVERED " + new Date(), true);
        asyncDataManager.setMark(location, true);
        long end = System.currentTimeMillis();
        LOG.info("Recovered " + redoCounter + " operations from redo log in " + ((end - start) / 1000.0f) + " seconds.");
    }
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        if (deleteAllMessages) {
            asyncDataManager.delete();
            try {
                JournalTrace trace = new JournalTrace();
                trace.setMessage("DELETED " + new Date());
                Location location = asyncDataManager.write(wireFormat.marshal(trace), false);
                asyncDataManager.setMark(location, true);
                LOG.info("Journal deleted: ");
                deleteAllMessages = false;
            } catch (IOException e) {
                throw e;
            } catch (Throwable e) {
                throw IOExceptionSupport.create(e);
            }
            referenceStoreAdapter.deleteAllMessages();
        }
        referenceStoreAdapter.start();
        Set<Integer> files = referenceStoreAdapter.getReferenceFileIdsInUse();
        LOG.info("Active data files: " + files);
        checkpointTask = taskRunnerFactory.createTaskRunner(new Task() {

            public boolean iterate() {
                doCheckpoint();
                return false;
            }
        }, "ActiveMQ Journal Checkpoint Worker");
        createTransactionStore();

        //
        // The following was attempting to reduce startup times by avoiding the
        // log
        // file scanning that recovery performs. The problem with it is that XA
        // transactions
        // only live in transaction log and are not stored in the reference
        // store, but they still
        // need to be recovered when the broker starts up.

        if (isForceRecoverReferenceStore()
                || (isRecoverReferenceStore() && !referenceStoreAdapter
                        .isStoreValid())) {
            LOG.warn("The ReferenceStore is not valid - recovering ...");
            recover();
            LOG.info("Finished recovering the ReferenceStore");
        } else {
            Location location = writeTraceMessage("RECOVERED " + new Date(),
                    true);
            asyncDataManager.setMark(location, true);
            // recover transactions
            getTransactionStore().setPreparedTransactions(
                    referenceStoreAdapter.retrievePreparedState());
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        try {
            if (LOG.isDebugEnabled()) {
                LOG.debug("Checkpoint started.");
            }

            Location currentMark = asyncDataManager.getMark();
            Location newMark = currentMark;
            Iterator<AMQMessageStore> queueIterator = queues.values().iterator();
            while (queueIterator.hasNext()) {
                final AMQMessageStore ms = queueIterator.next();
                Location mark = ms.getMark();
                if (mark != null && (newMark == null || mark.compareTo(newMark) > 0)) {
                    newMark = mark;
                }
            }
            Iterator<AMQTopicMessageStore> topicIterator = topics.values().iterator();
            while (topicIterator.hasNext()) {
                final AMQTopicMessageStore ms = topicIterator.next();
                Location mark = ms.getMark();
                if (mark != null && (newMark == null || mark.compareTo(newMark) > 0)) {
                    newMark = mark;
                }
            }
            try {
                if (newMark != currentMark) {
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            }
            Integer lastDataFile = asyncDataManager.getCurrentDataFileId();  
            inProgress.add(lastDataFile);
            lastDataFile = asyncDataManager.getMark().getDataFileId();
            inProgress.addAll(referenceStoreAdapter.getReferenceFileIdsInUse());
            Location lastActiveTx = transactionStore.checkpoint();
            if (lastActiveTx != null) {
                lastDataFile = Math.min(lastDataFile, lastActiveTx.getDataFileId());
            }
            LOG.debug("lastDataFile: " + lastDataFile);
            asyncDataManager.consolidateDataFilesNotIn(inProgress, lastDataFile - 1);
        } catch (IOException e) {
            LOG.error("Could not cleanup data files: " + e, e);
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