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

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

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    public MemoryJournal(SegmentStore store, NodeState root) {
        this.store = checkNotNull(store);
        this.parent = null;

        SegmentWriter writer = new SegmentWriter(store);
        RecordId id = writer.writeNode(root).getRecordId();
        writer.flush();

        this.base = id;
        this.head = id;
    }
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    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;
                head = newHead;
            }
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    public void compact() {
        long start = System.nanoTime();
        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());

        // Drop the SegmentWriter caches and flush any existing state
        // in an attempt to prevent new references to old pre-compacted
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        this.name = "root";

        DBObject id = new BasicDBObject("_id", "root");
        state = journals.findOne(id, null, primaryPreferred());
        if (state == null) {
            SegmentWriter writer = new SegmentWriter(store);
            RecordId headId = writer.writeNode(head).getRecordId();
            writer.flush();
            state = new BasicDBObject(of(
                    "_id",  "root",
                    "head", headId.toString()));
            try {
                journals.insert(state, concern);
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            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;
                head = newHead;
            }
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    public MemoryJournal(SegmentStore store, NodeState head) {
        this.store = checkNotNull(store);
        this.parent = null;

        SegmentWriter writer = new SegmentWriter(store);
        RecordId id = writer.writeNode(head).getRecordId();
        writer.flush();

        this.base = id;
        this.head = id;
    }
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    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;
                head = newHead;
            }
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Related Classes of org.apache.jackrabbit.oak.plugins.segment.SegmentWriter

  • org.apache.jackrabbit.oak.api.Blob
  • org.apache.jackrabbit.oak.api.PropertyState
  • org.apache.jackrabbit.oak.plugins.backup.FileStoreRestore
  • org.apache.jackrabbit.oak.plugins.memory.ModifiedNodeState
  • org.apache.jackrabbit.oak.plugins.segment.file.FileStore
  • org.apache.jackrabbit.oak.plugins.segment.file.FileStoreTest
  • org.apache.jackrabbit.oak.plugins.segment.memory.MemoryJournal
  • org.apache.jackrabbit.oak.plugins.segment.memory.MemoryStore
  • org.apache.jackrabbit.oak.plugins.segment.mongo.MongoJournal
  • org.apache.jackrabbit.oak.spi.blob.BlobStore
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