Package org.apache.cassandra.io.util

Examples of org.apache.cassandra.io.util.SequentialWriter

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            try
            {
                for (CacheKey key : keys)
                {
                    Pair<String, String> path = key.getPathInfo();
                    SequentialWriter writer = writers.get(path);

                    if (writer == null)
                    {
                        writer = tempCacheFile(path);
                        writers.put(path, writer);
                    }

                    ByteBuffer bytes = key.serializeForStorage();
                    ByteBufferUtil.writeWithLength(bytes, writer.stream);
                    bytesWritten += bytes.remaining();
                }
            }
            finally
            {
                for (SequentialWriter writer : writers.values())
                    FileUtils.closeQuietly(writer);
            }

            for (Map.Entry<Pair<String, String>, SequentialWriter> info : writers.entrySet())
            {
                Pair<String, String> path = info.getKey();
                SequentialWriter writer = info.getValue();

                File tmpFile = new File(writer.getPath());
                File cacheFile = getCachePath(path.left, path.right);

                cacheFile.delete(); // ignore error if it didn't exist
                if (!tmpFile.renameTo(cacheFile))
                    logger.error("Unable to rename " + tmpFile + " to " + cacheFile);
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            try
            {
                for (K key : keys)
                {
                    Pair<String, String> path = key.getPathInfo();
                    SequentialWriter writer = writers.get(path);
                    if (writer == null)
                    {
                        writer = tempCacheFile(path);
                        writers.put(path, writer);
                    }

                    try
                    {
                        cacheLoader.serialize(key, writer.stream);
                    }
                    catch (IOException e)
                    {
                        throw new FSWriteError(e, writer.getPath());
                    }

                    keysWritten++;
                }
            }
            finally
            {
                for (SequentialWriter writer : writers.values())
                    FileUtils.closeQuietly(writer);
            }

            for (Map.Entry<Pair<String, String>, SequentialWriter> info : writers.entrySet())
            {
                Pair<String, String> path = info.getKey();
                SequentialWriter writer = info.getValue();

                File tmpFile = new File(writer.getPath());
                File cacheFile = getCachePath(path.left, path.right, CURRENT_VERSION);

                cacheFile.delete(); // ignore error if it didn't exist
                if (!tmpFile.renameTo(cacheFile))
                    logger.error("Unable to rename " + tmpFile + " to " + cacheFile);
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            try
            {
                for (CacheKey key : keys)
                {
                    Pair<String, String> path = key.getPathInfo();
                    SequentialWriter writer = writers.get(path);

                    if (writer == null)
                    {
                        writer = tempCacheFile(path);
                        writers.put(path, writer);
                    }

                    key.write(writer.stream);
                    bytesWritten += key.serializedSize();
                }
            }
            finally
            {
                for (SequentialWriter writer : writers.values())
                    FileUtils.closeQuietly(writer);
            }

            for (Map.Entry<Pair<String, String>, SequentialWriter> info : writers.entrySet())
            {
                Pair<String, String> path = info.getKey();
                SequentialWriter writer = info.getValue();

                File tmpFile = new File(writer.getPath());
                File cacheFile = getCachePath(path.left, path.right);

                cacheFile.delete(); // ignore error if it didn't exist
                if (!tmpFile.renameTo(cacheFile))
                    logger.error("Unable to rename " + tmpFile + " to " + cacheFile);
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            try
            {
                for (CacheKey key : keys)
                {
                    Pair<String, String> path = key.getPathInfo();
                    SequentialWriter writer = writers.get(path);

                    if (writer == null)
                    {
                        writer = tempCacheFile(path);
                        writers.put(path, writer);
                    }

                    key.write(writer.stream);
                    bytesWritten += key.serializedSize();
                }
            }
            finally
            {
                for (SequentialWriter writer : writers.values())
                    FileUtils.closeQuietly(writer);
            }

            for (Map.Entry<Pair<String, String>, SequentialWriter> info : writers.entrySet())
            {
                Pair<String, String> path = info.getKey();
                SequentialWriter writer = info.getValue();

                File tmpFile = new File(writer.getPath());
                File cacheFile = getCachePath(path.left, path.right);

                cacheFile.delete(); // ignore error if it didn't exist
                if (!tmpFile.renameTo(cacheFile))
                    logger.error("Unable to rename " + tmpFile + " to " + cacheFile);
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    }


    private static void writeMetadata(Descriptor desc, Map<MetadataType, MetadataComponent> components)
    {
        SequentialWriter out = SequentialWriter.open(new File(desc.filenameFor(Component.STATS)));
        try
        {
            desc.getMetadataSerializer().serialize(components, out.stream);
        }
        catch (IOException e)
        {
            throw new FSWriteError(e, out.getPath());
        }
        finally
        {
            out.close();
        }
    }
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            try
            {
                for (K key : keys)
                {
                    CacheKey.PathInfo path = key.getPathInfo();
                    SequentialWriter writer = writers.get(path);
                    if (writer == null)
                    {
                        writer = tempCacheFile(path);
                        writers.put(path, writer);
                    }

                    try
                    {
                        cacheLoader.serialize(key, writer.stream);
                    }
                    catch (IOException e)
                    {
                        throw new FSWriteError(e, writer.getPath());
                    }

                    keysWritten++;
                }
            }
            finally
            {
                for (SequentialWriter writer : writers.values())
                    FileUtils.closeQuietly(writer);
            }

            for (Map.Entry<CacheKey.PathInfo, SequentialWriter> info : writers.entrySet())
            {
                CacheKey.PathInfo path = info.getKey();
                SequentialWriter writer = info.getValue();

                File tmpFile = new File(writer.getPath());
                File cacheFile = getCachePath(path.keyspace, path.columnFamily, path.cfId, CURRENT_VERSION);

                cacheFile.delete(); // ignore error if it didn't exist
                if (!tmpFile.renameTo(cacheFile))
                    logger.error("Unable to rename {} to {}", tmpFile, cacheFile);
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            try
            {
                for (K key : keys)
                {
                    Pair<String, String> path = key.getPathInfo();
                    SequentialWriter writer = writers.get(path);
                    if (writer == null)
                    {
                        writer = tempCacheFile(path);
                        writers.put(path, writer);
                    }

                    try
                    {
                        cacheLoader.serialize(key, writer.stream);
                    }
                    catch (IOException e)
                    {
                        throw new FSWriteError(e, writer.getPath());
                    }

                    keysWritten++;
                }
            }
            finally
            {
                for (SequentialWriter writer : writers.values())
                    FileUtils.closeQuietly(writer);
            }

            for (Map.Entry<Pair<String, String>, SequentialWriter> info : writers.entrySet())
            {
                Pair<String, String> path = info.getKey();
                SequentialWriter writer = info.getValue();

                File tmpFile = new File(writer.getPath());
                File cacheFile = getCachePath(path.left, path.right, CURRENT_VERSION);

                cacheFile.delete(); // ignore error if it didn't exist
                if (!tmpFile.renameTo(cacheFile))
                    logger.error("Unable to rename {} to {}", tmpFile, cacheFile);
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            try
            {
                for (K key : keys)
                {
                    CacheKey.PathInfo path = key.getPathInfo();
                    SequentialWriter writer = writers.get(path);
                    if (writer == null)
                    {
                        writer = tempCacheFile(path);
                        writers.put(path, writer);
                    }

                    try
                    {
                        cacheLoader.serialize(key, writer.stream);
                    }
                    catch (IOException e)
                    {
                        throw new FSWriteError(e, writer.getPath());
                    }

                    keysWritten++;
                }
            }
            finally
            {
                for (SequentialWriter writer : writers.values())
                    FileUtils.closeQuietly(writer);
            }

            for (Map.Entry<CacheKey.PathInfo, SequentialWriter> info : writers.entrySet())
            {
                CacheKey.PathInfo path = info.getKey();
                SequentialWriter writer = info.getValue();

                File tmpFile = new File(writer.getPath());
                File cacheFile = getCachePath(path.keyspace, path.columnFamily, path.cfId, CURRENT_VERSION);

                cacheFile.delete(); // ignore error if it didn't exist
                if (!tmpFile.renameTo(cacheFile))
                    logger.error("Unable to rename {} to {}", tmpFile, cacheFile);
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        writer.addColumn(ByteBufferUtil.bytes("col"), ByteBufferUtil.EMPTY_BYTE_BUFFER, 1);
        writer.close();
        Descriptor desc = directories.sstableLister().list().keySet().iterator().next();

        File cachePath = CacheService.instance.keyCache.getCachePath(ks, cf);
        SequentialWriter out = SequentialWriter.open(cachePath);
        new KeyCacheKey(desc, key).write(out.stream);
        out.close();

        ColumnFamilyStore cfs = Table.open(ks).getColumnFamilyStore(cf);
        cfs.disableAutoCompaction();
        SSTableReader sstable = cfs.getSSTables().iterator().next();
        assert 0 == sstable.getCachedPosition(StorageService.getPartitioner().decorateKey(key), false);
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    }


    private static void writeMetadata(Descriptor desc, Map<MetadataType, MetadataComponent> components)
    {
        SequentialWriter out = SequentialWriter.open(new File(desc.filenameFor(Component.STATS)));
        try
        {
            desc.getMetadataSerializer().serialize(components, out.stream);
        }
        catch (IOException e)
        {
            throw new FSWriteError(e, out.getPath());
        }
        finally
        {
            out.close();
        }
    }
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Related Classes of org.apache.cassandra.io.util.SequentialWriter

  • org.apache.cassandra.cache.AutoSavingCache$Writer
  • org.apache.cassandra.io.compress.CompressedRandomAccessReaderTest
  • org.apache.cassandra.io.compress.CompressedSequentialWriter
  • org.apache.cassandra.io.FSReadError
  • org.apache.cassandra.io.FSWriteError
  • org.apache.cassandra.io.sstable.format.big.BigTableWriter
  • org.apache.cassandra.io.sstable.SSTableReaderTest
  • org.apache.cassandra.io.sstable.SSTableWriter
  • java.nio.channels.ClosedChannelException
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