Package org.apache.jackrabbit.oak.plugins.segment

Examples of org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState

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    }

    @Override
    public synchronized void merge() {
        if (parent != null) {
            NodeState before = new SegmentNodeState(store, base);
            NodeState after = new SegmentNodeState(store, head);

            SegmentWriter writer = new SegmentWriter(store);
            while (!parent.setHead(base, head)) {
                RecordId newBase = parent.getHead();
                NodeBuilder builder =
                        new SegmentNodeState(store, newBase).builder();
                after.compareAgainstBaseState(before, new MergeDiff(builder));
                NodeState state = builder.getNodeState();
                RecordId newHead = writer.writeNode(state).getRecordId();
                writer.flush();

                base = newBase;
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        log.info("TarMK compaction started");

        SegmentWriter writer = new SegmentWriter(this, tracker);
        Compactor compactor = new Compactor(writer);

        SegmentNodeState before = getHead();
        SegmentNodeState after = compactor.compact(EMPTY_NODE, before);
        writer.flush();
        while (!setHead(before, after)) {
            // Some other concurrent changes have been made.
            // Rebase (and compact) those changes on top of the
            // compacted state before retrying to set the head.
            SegmentNodeState head = getHead();
            after = compactor.compact(before, head);
            before = head;
            writer.flush();
        }
        tracker.setCompactionMap(compactor.getCompactionMap());
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        return tracker;
    }

    @Override
    public SegmentNodeState getHead() {
        return new SegmentNodeState(head.get());
    }
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        // 2. init filestore
        FileStore backup = new FileStore(destination, MAX_FILE_SIZE, false);
        try {
            Journal journal = backup.getJournal("root");

            SegmentNodeState state = new SegmentNodeState(
                    backup.getWriter().getDummySegment(), journal.getHead());
            SegmentNodeBuilder builder = state.builder();

            String beforeCheckpoint = state.getString("checkpoint");
            if (beforeCheckpoint == null) {
                // 3.1 no stored checkpoint, so do the initial full backup
                builder.setChildNode("root", current);
            } else {
                // 3.2 try to retrieve the previously backed up checkpoint
                NodeState before = store.retrieve(beforeCheckpoint);
                if (before == null) {
                    // the previous checkpoint is no longer available,
                    // so use the backed up state as the basis of the
                    // incremental backup diff
                    before = state.getChildNode("root");
                }
                current.compareAgainstBaseState(
                        before, new ApplyDiff(builder.child("root")));
            }
            builder.setProperty("checkpoint", checkpoint);

            // 4. commit the backup
            journal.setHead(
                    state.getRecordId(), builder.getNodeState().getRecordId());
        } finally {
            backup.close();
        }

        log.debug("Backup finished in {} ms.", System.currentTimeMillis() - s);
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                    String name = new String(b, UTF_8);
                    RecordId recordId = new RecordId(
                            new UUID(buffer.getLong(), buffer.getLong()),
                            buffer.getInt());
                    journals.put(name, new FileJournal(
                            this, new SegmentNodeState(segment, recordId)));
                }
            }
        }

        if (!journals.containsKey("root")) {
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                    byte[] n = new byte[ro.getInt()];
                    ro.get(n);
                    SegmentReference reference = references.get(
                            new UUID(ro.getLong(), ro.getLong()));
                    checkState(reference != null);
                    SegmentNodeState h = new SegmentNodeState(this, new RecordId(
                            reference.getSegmentId(), ro.getInt()));
                    journals.put(
                            new String(n, UTF_8),
                            new FileJournal(this, h));
                }
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        if (state.containsField("parent")) {
            RecordId base = RecordId.fromString(state.get("base").toString());
            RecordId head = RecordId.fromString(state.get("head").toString());

            NodeState before = new SegmentNodeState(store, base);
            NodeState after = new SegmentNodeState(store, head);

            Journal parent = store.getJournal(state.get("parent").toString());
            SegmentWriter writer = new SegmentWriter(store);
            while (!parent.setHead(base, head)) {
                RecordId newBase = parent.getHead();
                NodeBuilder builder =
                        new SegmentNodeState(store, newBase).builder();
                after.compareAgainstBaseState(before, new MergeDiff(builder));
                RecordId newHead =
                        writer.writeNode(builder.getNodeState()).getRecordId();
                writer.flush();

                base = newBase;
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    }

    @Override
    public synchronized void merge() {
        if (parent != null) {
            NodeState before = new SegmentNodeState(store, base);
            NodeState after = new SegmentNodeState(store, head);

            SegmentWriter writer = new SegmentWriter(store);
            while (!parent.setHead(base, head)) {
                RecordId newBase = parent.getHead();
                NodeBuilder builder =
                        new SegmentNodeState(store, newBase).builder();
                after.compareAgainstBaseState(before, new MergeDiff(builder));
                NodeState state = builder.getNodeState();
                RecordId newHead = writer.writeNode(state).getRecordId();
                writer.flush();

                base = newBase;
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Related Classes of org.apache.jackrabbit.oak.plugins.segment.SegmentNodeState

  • org.apache.jackrabbit.oak.api.PropertyState
  • org.apache.jackrabbit.oak.explorer.NodeStoreTree
  • org.apache.jackrabbit.oak.http.segment.SegmentServlet
  • org.apache.jackrabbit.oak.plugins.backup.FileStoreBackup
  • org.apache.jackrabbit.oak.plugins.backup.FileStoreRestore
  • org.apache.jackrabbit.oak.plugins.memory.MemoryChildNodeEntry
  • org.apache.jackrabbit.oak.plugins.memory.MemoryNodeBuilder
  • org.apache.jackrabbit.oak.plugins.segment.file.FileStore
  • org.apache.jackrabbit.oak.plugins.segment.file.FileStoreTest
  • org.apache.jackrabbit.oak.plugins.segment.http.HttpStore
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