Package org.iq80.leveldb.impl

Examples of org.iq80.leveldb.impl.FileMetaData

77
78
79
80
81
82
83
84
85
86
87
        return getTable(file.getNumber()).getApproximateOffsetOf(key);
    }

    private Table getTable(long number)
    {
        Table table;
        try {
            table = cache.get(number).getTable();
        }
        catch (ExecutionException e) {
            Throwable cause = e;
View Full Code Here
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
        try {
            InternalKey smallest = null;
            InternalKey largest = null;
            FileChannel channel = new FileOutputStream(file).getChannel();
            try {
                TableBuilder tableBuilder = new TableBuilder(options, channel, new InternalUserComparator(internalKeyComparator));

               
                for (Entry<InternalKey, Slice> entry : data) {
                    // update keys
                    InternalKey key = entry.getKey();
                    if (smallest == null) {
                        smallest = key;
                    }
                    largest = key;

                    tableBuilder.add(key.encode(), entry.getValue());
                }

                tableBuilder.finish();
            } finally {
                try {
                    channel.force(true);
                } finally {
                    channel.close();
View Full Code Here
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
            compactionState.currentSmallest = null;
            compactionState.currentLargest = null;

            File file = new File(databaseDir, Filename.tableFileName(fileNumber));
            compactionState.outfile = new FileOutputStream(file).getChannel();
            compactionState.builder = new TableBuilder(options, compactionState.outfile, new InternalUserComparator(internalKeyComparator));
        }
        finally {
            mutex.unlock();
        }
    }
View Full Code Here
166
167
168
169
170
171
172
173
174
    public boolean someFileOverlapsRange(Slice smallestUserKey, Slice largestUserKey)
    {
        InternalKey smallestInternalKey = new InternalKey(smallestUserKey, MAX_SEQUENCE_NUMBER, VALUE);
        int index = findFile(smallestInternalKey);

        UserComparator userComparator = internalKeyComparator.getUserComparator();
        return ((index < files.size()) &&
                userComparator.compare(largestUserKey, files.get(index).getSmallest().getUserKey()) >= 0);
    }
View Full Code Here
129
130
131
132
133
134
135
136
137
    public boolean someFileOverlapsRange(Slice smallestUserKey, Slice largestUserKey)
    {
        InternalKey smallestInternalKey = new InternalKey(smallestUserKey, MAX_SEQUENCE_NUMBER, VALUE);
        int index = findFile(smallestInternalKey);

        UserComparator userComparator = internalKeyComparator.getUserComparator();
        return ((index < files.size()) &&
                userComparator.compare(largestUserKey, files.get(index).getSmallest().getUserKey()) >= 0);
    }
View Full Code Here
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
    // the compaction is producing data in "level+1" for which no data exists
    // in levels greater than "level+1".
    public boolean isBaseLevelForKey(Slice userKey)
    {
        // Maybe use binary search to find right entry instead of linear search?
        UserComparator userComparator = inputVersion.getInternalKeyComparator().getUserComparator();
        for (int level = this.level + 2; level < NUM_LEVELS; level++) {
            List<FileMetaData> files = inputVersion.getFiles(level);
            while (levelPointers[level] < files.size()) {
                FileMetaData f = files.get(levelPointers[level]);
                if (userComparator.compare(userKey, f.getLargest().getUserKey()) <= 0) {
                    // We've advanced far enough
                    if (userComparator.compare(userKey, f.getSmallest().getUserKey()) >= 0) {
                        // Key falls in this file's range, so definitely not base level
                        return false;
                    }
                    break;
                }
View Full Code Here
624
625
626
627
628
629
630
631
632
633
634
635
636
637
    List<FileMetaData> getOverlappingInputs(int level, InternalKey begin, InternalKey end)
    {
        ImmutableList.Builder<FileMetaData> files = ImmutableList.builder();
        Slice userBegin = begin.getUserKey();
        Slice userEnd = end.getUserKey();
        UserComparator userComparator = internalKeyComparator.getUserComparator();
        for (FileMetaData fileMetaData : current.getFiles(level)) {
            if (userComparator.compare(fileMetaData.getLargest().getUserKey(), userBegin) < 0 ||
                    userComparator.compare(fileMetaData.getSmallest().getUserKey(), userEnd) > 0) {
                // Either completely before or after range; skip it
            }
            else {
                files.add(fileMetaData);
            }
View Full Code Here
121
122
123
124
125
126
127
128
129
130
131
        this.databaseDir = databaseDir;

        //use custom comparator if set
        DBComparator comparator = options.comparator();
        UserComparator userComparator;
        if (comparator != null) {
            userComparator = new CustomUserComparator(comparator);
        }else{
            userComparator = new BytewiseComparator();
        }
View Full Code Here
724
725
726
727
728
729
730
731
732
733
734
    public SeekingIteratorAdapter iterator(ReadOptions options)
    {
        checkBackgroundException();
        mutex.lock();
        try {
            DbIterator rawIterator = internalIterator();


            // filter any entries not visible in our snapshot
            SnapshotImpl snapshot = getSnapshot(options);
            SnapshotSeekingIterator snapshotIterator = new SnapshotSeekingIterator(rawIterator, snapshot, internalKeyComparator.getUserComparator());
View Full Code Here
759
760
761
762
763
764
765
766
767
768
769
            MemTableIterator iterator = null;
            if (immutableMemTable != null) {
                iterator = immutableMemTable.iterator();
            }
            Version current = versions.getCurrent();
            return new DbIterator(memTable.iterator(), iterator, current.getLevel0Files(), current.getLevelIterators(), internalKeyComparator);
        }
        finally {
            mutex.unlock();
        }
    }
View Full Code Here
TOP

Related Classes of org.iq80.leveldb.impl.FileMetaData

  • co.cask.cdap.data2.dataset2.lib.table.leveldb.LevelDBOrderedTableCore
  • co.cask.cdap.data2.dataset2.lib.table.leveldb.LevelDBOrderedTableService
  • com.alexkasko.springjdbc.compress.SnappyCompressor
  • com.cloudhopper.datastore.leveldb.LevelDbDataStore
  • com.fasterxml.storemate.backend.leveldb.LevelDBBuilder
  • com.google.common.util.concurrent.ThreadFactoryBuilder
  • com.nabalive.server.web.DataUtil
  • com.nabalive.server.web.TokenUtil
  • com.saasovation.common.port.adapter.persistence.eventsourcing.leveldb.LevelDBJournal
  • com.saasovation.common.port.adapter.persistence.eventsourcing.leveldb.LevelDBJournalRepairTool
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.