List of usage examples for org.apache.commons.lang ArrayUtils EMPTY_BYTE_ARRAY
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byte array. From source file:org.apache.cassandra.cql.common.ColumnRangeQueryRSD.java
public List<Map<String, String>> getRows() throws UnsupportedEncodingException { QueryPath path;// ww w. ja v a 2 s.com String superColumnKey = null; if (superColumnKey_ != null) { superColumnKey = (String) (superColumnKey_.get()); path = new QueryPath(cfMetaData_.cfName, superColumnKey.getBytes("UTF-8")); } else { path = new QueryPath(cfMetaData_.cfName); } Row row = null; try { String key = (String) (rowKey_.get()); ReadCommand readCommand = new SliceFromReadCommand(cfMetaData_.tableName, key, path, ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.EMPTY_BYTE_ARRAY, true, limit_); row = StorageProxy.readProtocol(readCommand, ConsistencyLevel.ONE); } catch (Exception e) { logger_.error(LogUtil.throwableToString(e)); throw new RuntimeException(RuntimeErrorMsg.GENERIC_ERROR.getMsg()); } List<Map<String, String>> rows = new LinkedList<Map<String, String>>(); if (row != null) { ColumnFamily cfamily = row.getColumnFamily(cfMetaData_.cfName); if (cfamily != null) { Collection<IColumn> columns = null; if (superColumnKey_ != null) { // this is the super column case IColumn column = cfamily.getColumn(superColumnKey.getBytes("UTF-8")); if (column != null) columns = column.getSubColumns(); } else { columns = cfamily.getSortedColumns(); } if (columns != null && columns.size() > 0) { for (IColumn column : columns) { Map<String, String> result = new HashMap<String, String>(); result.put(cfMetaData_.n_columnKey, new String(column.name(), "UTF-8")); result.put(cfMetaData_.n_columnValue, new String(column.value())); result.put(cfMetaData_.n_columnTimestamp, Long.toString(column.timestamp())); rows.add(result); } } } } return rows; }
From source file:org.apache.cassandra.cql.common.SuperColumnRangeQueryRSD.java
public List<Map<String, String>> getRows() throws UnsupportedEncodingException { Row row = null;/*from w w w. j a v a 2 s. c om*/ try { String key = (String) (rowKey_.get()); ReadCommand readCommand = new SliceFromReadCommand(cfMetaData_.tableName, key, new QueryPath(cfMetaData_.cfName), ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.EMPTY_BYTE_ARRAY, true, limit_); row = StorageProxy.readProtocol(readCommand, ConsistencyLevel.ONE); } catch (Exception e) { logger_.error(LogUtil.throwableToString(e)); throw new RuntimeException(RuntimeErrorMsg.GENERIC_ERROR.getMsg()); } List<Map<String, String>> rows = new LinkedList<Map<String, String>>(); if (row != null) { ColumnFamily cfamily = row.getColumnFamily(cfMetaData_.cfName); if (cfamily != null) { Collection<IColumn> columns = cfamily.getSortedColumns(); if (columns != null && columns.size() > 0) { for (IColumn column : columns) { Collection<IColumn> subColumns = column.getSubColumns(); for (IColumn subColumn : subColumns) { Map<String, String> result = new HashMap<String, String>(); result.put(cfMetaData_.n_superColumnKey, new String(column.name(), "UTF-8")); result.put(cfMetaData_.n_columnKey, new String(subColumn.name(), "UTF-8")); result.put(cfMetaData_.n_columnValue, new String(subColumn.value())); result.put(cfMetaData_.n_columnTimestamp, Long.toString(subColumn.timestamp())); rows.add(result); } } } } } return rows; }
From source file:org.apache.cassandra.db.ColumnFamilyStoreTest.java
License:asdf
@Test public void testDeleteSuperRowSticksAfterFlush() throws Throwable { String tableName = "Keyspace1"; String cfName = "Super1"; ByteBuffer scfName = ByteBufferUtil.bytes("SuperDuper"); Table table = Table.open(tableName); ColumnFamilyStore cfs = table.getColumnFamilyStore(cfName); DecoratedKey key = Util.dk("flush-resurrection"); // create an isolated sstable. putColsSuper(cfs, key, scfName, new Column(getBytes(1), ByteBufferUtil.bytes("val1"), 1), new Column(getBytes(2), ByteBufferUtil.bytes("val2"), 1), new Column(getBytes(3), ByteBufferUtil.bytes("val3"), 1)); cfs.forceBlockingFlush();//from www . j a v a2s.c om // insert, don't flush. putColsSuper(cfs, key, scfName, new Column(getBytes(4), ByteBufferUtil.bytes("val4"), 1), new Column(getBytes(5), ByteBufferUtil.bytes("val5"), 1), new Column(getBytes(6), ByteBufferUtil.bytes("val6"), 1)); // verify insert. final SlicePredicate sp = new SlicePredicate(); sp.setSlice_range(new SliceRange()); sp.getSlice_range().setCount(100); sp.getSlice_range().setStart(ArrayUtils.EMPTY_BYTE_ARRAY); sp.getSlice_range().setFinish(ArrayUtils.EMPTY_BYTE_ARRAY); assertRowAndColCount(1, 6, scfName, false, cfs.getRangeSlice(scfName, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); // deeleet. RowMutation rm = new RowMutation(table.name, key.key); rm.delete(new QueryPath(cfName, scfName), 2); rm.apply(); // verify delete. assertRowAndColCount(1, 0, scfName, false, cfs.getRangeSlice(scfName, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); // flush cfs.forceBlockingFlush(); // re-verify delete. assertRowAndColCount(1, 0, scfName, false, cfs.getRangeSlice(scfName, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); // late insert. putColsSuper(cfs, key, scfName, new Column(getBytes(4), ByteBufferUtil.bytes("val4"), 1L), new Column(getBytes(7), ByteBufferUtil.bytes("val7"), 1L)); // re-verify delete. assertRowAndColCount(1, 0, scfName, false, cfs.getRangeSlice(scfName, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); // make sure new writes are recognized. putColsSuper(cfs, key, scfName, new Column(getBytes(3), ByteBufferUtil.bytes("val3"), 3), new Column(getBytes(8), ByteBufferUtil.bytes("val8"), 3), new Column(getBytes(9), ByteBufferUtil.bytes("val9"), 3)); assertRowAndColCount(1, 3, scfName, false, cfs.getRangeSlice(scfName, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); }
From source file:org.apache.cassandra.db.ColumnFamilyStoreTest.java
License:asdf
@Test public void testDeleteStandardRowSticksAfterFlush() throws Throwable { // test to make sure flushing after a delete doesn't resurrect delted cols. String tableName = "Keyspace1"; String cfName = "Standard1"; Table table = Table.open(tableName); ColumnFamilyStore cfs = table.getColumnFamilyStore(cfName); DecoratedKey key = Util.dk("f-flush-resurrection"); SlicePredicate sp = new SlicePredicate(); sp.setSlice_range(new SliceRange()); sp.getSlice_range().setCount(100);/*from www . j a va 2 s. c om*/ sp.getSlice_range().setStart(ArrayUtils.EMPTY_BYTE_ARRAY); sp.getSlice_range().setFinish(ArrayUtils.EMPTY_BYTE_ARRAY); // insert putColsStandard(cfs, key, column("col1", "val1", 1), column("col2", "val2", 1)); assertRowAndColCount(1, 2, null, false, cfs.getRangeSlice(null, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); // flush. cfs.forceBlockingFlush(); // insert, don't flush putColsStandard(cfs, key, column("col3", "val3", 1), column("col4", "val4", 1)); assertRowAndColCount(1, 4, null, false, cfs.getRangeSlice(null, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); // delete (from sstable and memtable) RowMutation rm = new RowMutation(table.name, key.key); rm.delete(new QueryPath(cfs.columnFamily, null, null), 2); rm.apply(); // verify delete assertRowAndColCount(1, 0, null, true, cfs.getRangeSlice(null, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); // flush cfs.forceBlockingFlush(); // re-verify delete. // first breakage is right here because of CASSANDRA-1837. assertRowAndColCount(1, 0, null, true, cfs.getRangeSlice(null, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); // simulate a 'late' insertion that gets put in after the deletion. should get inserted, but fail on read. putColsStandard(cfs, key, column("col5", "val5", 1), column("col2", "val2", 1)); // should still be nothing there because we deleted this row. 2nd breakage, but was undetected because of 1837. assertRowAndColCount(1, 0, null, true, cfs.getRangeSlice(null, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); // make sure that new writes are recognized. putColsStandard(cfs, key, column("col6", "val6", 3), column("col7", "val7", 3)); assertRowAndColCount(1, 2, null, true, cfs.getRangeSlice(null, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); // and it remains so after flush. (this wasn't failing before, but it's good to check.) cfs.forceBlockingFlush(); assertRowAndColCount(1, 2, null, true, cfs.getRangeSlice(null, Util.range("f", "g"), 100, QueryFilter.getFilter(sp, cfs.getComparator()))); }
From source file:org.apache.cassandra.db.columniterator.IdentityQueryFilter.java
/** * Only for use in testing; will read entire CF into memory. *//*from ww w . j av a 2 s .c o m*/ public IdentityQueryFilter() { super(ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.EMPTY_BYTE_ARRAY, false, Integer.MAX_VALUE); }
From source file:org.apache.cassandra.db.marshal.TypeCompareTest.java
License:asdf
@Test public void testAscii() { AsciiType comparator = new AsciiType(); assert comparator.compare(ArrayUtils.EMPTY_BYTE_ARRAY, "asdf".getBytes()) < 0; assert comparator.compare("asdf".getBytes(), ArrayUtils.EMPTY_BYTE_ARRAY) > 0; assert comparator.compare(ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.EMPTY_BYTE_ARRAY) == 0; assert comparator.compare("z".getBytes(), "a".getBytes()) > 0; assert comparator.compare("a".getBytes(), "z".getBytes()) < 0; assert comparator.compare("asdf".getBytes(), "asdf".getBytes()) == 0; assert comparator.compare("asdz".getBytes(), "asdf".getBytes()) > 0; }
From source file:org.apache.cassandra.db.marshal.TypeCompareTest.java
License:asdf
@Test public void testBytes() { BytesType comparator = new BytesType(); assert comparator.compare(ArrayUtils.EMPTY_BYTE_ARRAY, "asdf".getBytes()) < 0; assert comparator.compare("asdf".getBytes(), ArrayUtils.EMPTY_BYTE_ARRAY) > 0; assert comparator.compare(ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.EMPTY_BYTE_ARRAY) == 0; assert comparator.compare("z".getBytes(), "a".getBytes()) > 0; assert comparator.compare("a".getBytes(), "z".getBytes()) < 0; assert comparator.compare("asdf".getBytes(), "asdf".getBytes()) == 0; assert comparator.compare("asdz".getBytes(), "asdf".getBytes()) > 0; }
From source file:org.apache.cassandra.db.marshal.TypeCompareTest.java
License:asdf
@Test public void testUTF8() throws UnsupportedEncodingException { UTF8Type comparator = new UTF8Type(); assert comparator.compare(ArrayUtils.EMPTY_BYTE_ARRAY, "asdf".getBytes()) < 0; assert comparator.compare("asdf".getBytes(), ArrayUtils.EMPTY_BYTE_ARRAY) > 0; assert comparator.compare(ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.EMPTY_BYTE_ARRAY) == 0; assert comparator.compare("z".getBytes("UTF-8"), "a".getBytes("UTF-8")) > 0; assert comparator.compare("z".getBytes("UTF-8"), "z".getBytes("UTF-8")) == 0; assert comparator.compare("a".getBytes("UTF-8"), "z".getBytes("UTF-8")) < 0; }
From source file:org.apache.cassandra.db.ReadMessageTest.java
@Test public void testMakeReadMessage() throws IOException { ArrayList<byte[]> colList = new ArrayList<byte[]>(); colList.add("col1".getBytes()); colList.add("col2".getBytes()); ReadCommand rm, rm2;//from w w w . jav a 2 s .c o m DecoratedKey dk = Util.dk("row1"); rm = new SliceByNamesReadCommand("Keyspace1", dk.key, new QueryPath("Standard1"), colList); rm2 = serializeAndDeserializeReadMessage(rm); assert rm2.toString().equals(rm.toString()); rm = new SliceFromReadCommand("Keyspace1", dk.key, new QueryPath("Standard1"), ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.EMPTY_BYTE_ARRAY, true, 2); rm2 = serializeAndDeserializeReadMessage(rm); assert rm2.toString().equals(rm.toString()); rm = new SliceFromReadCommand("Keyspace1", dk.key, new QueryPath("Standard1"), "a".getBytes(), "z".getBytes(), true, 5); rm2 = serializeAndDeserializeReadMessage(rm); assertEquals(rm2.toString(), rm.toString()); rm = new SliceFromReadCommand("Keyspace1", dk.key, new QueryPath("Standard1"), ArrayUtils.EMPTY_BYTE_ARRAY, ArrayUtils.EMPTY_BYTE_ARRAY, true, 2); rm2 = serializeAndDeserializeReadMessage(rm); assert rm2.toString().equals(rm.toString()); rm = new SliceFromReadCommand("Keyspace1", dk.key, new QueryPath("Standard1"), "a".getBytes(), "z".getBytes(), true, 5); rm2 = serializeAndDeserializeReadMessage(rm); assertEquals(rm2.toString(), rm.toString()); }
From source file:org.apache.cassandra.db.Table.java
/** * This method adds the row to the Commit Log associated with this table. * Once this happens the data associated with the individual column families * is also written to the column family store's memtable. *///from w w w . j a v a2s .c o m public void apply(RowMutation mutation, Object serializedMutation, boolean writeCommitLog) throws IOException { HashMap<ColumnFamilyStore, Memtable> memtablesToFlush = new HashMap<ColumnFamilyStore, Memtable>(2); // write the mutation to the commitlog and memtables flusherLock.readLock().lock(); try { if (writeCommitLog) CommitLog.instance().add(mutation, serializedMutation); DecoratedKey key = StorageService.getPartitioner().decorateKey(mutation.key()); for (ColumnFamily cf : mutation.getColumnFamilies()) { ColumnFamilyStore cfs = columnFamilyStores.get(cf.id()); if (cfs == null) { logger.error("Attempting to mutate non-existant column family " + cf.id()); continue; } SortedSet<byte[]> mutatedIndexedColumns = null; for (byte[] column : cfs.getIndexedColumns()) { if (cf.getColumnNames().contains(column)) { if (mutatedIndexedColumns == null) mutatedIndexedColumns = new TreeSet<byte[]>(FBUtilities.byteArrayComparator); mutatedIndexedColumns.add(column); } } if (mutatedIndexedColumns == null) { // just update the actual value, no extra synchronization applyCF(cfs, key, cf, memtablesToFlush); } else { synchronized (indexLockFor(mutation.key())) { // read old indexed values QueryFilter filter = QueryFilter.getNamesFilter(key, new QueryPath(cfs.getColumnFamilyName()), mutatedIndexedColumns); ColumnFamily oldIndexedColumns = cfs.getColumnFamily(filter); // ignore obsolete column updates if (oldIndexedColumns != null) { for (IColumn oldColumn : oldIndexedColumns) { if (cfs.metadata.reconciler .reconcile((Column) oldColumn, (Column) cf.getColumn(oldColumn.name())) .equals(oldColumn)) { cf.remove(oldColumn.name()); mutatedIndexedColumns.remove(oldColumn.name()); oldIndexedColumns.remove(oldColumn.name()); } } } // apply the mutation applyCF(cfs, key, cf, memtablesToFlush); // add new index entries for (byte[] columnName : mutatedIndexedColumns) { IColumn column = cf.getColumn(columnName); DecoratedKey<LocalToken> valueKey = cfs.getIndexKeyFor(columnName, column.value()); ColumnFamily cfi = cfs.newIndexedColumnFamily(columnName); cfi.addColumn(new Column(mutation.key(), ArrayUtils.EMPTY_BYTE_ARRAY, column.clock())); applyCF(cfs.getIndexedColumnFamilyStore(columnName), valueKey, cfi, memtablesToFlush); } // remove the old index entries if (oldIndexedColumns != null) { int localDeletionTime = (int) (System.currentTimeMillis() / 1000); for (Map.Entry<byte[], IColumn> entry : oldIndexedColumns.getColumnsMap().entrySet()) { byte[] columnName = entry.getKey(); IColumn column = entry.getValue(); DecoratedKey<LocalToken> valueKey = cfs.getIndexKeyFor(columnName, column.value()); ColumnFamily cfi = cfs.newIndexedColumnFamily(columnName); cfi.deleteColumn(mutation.key(), localDeletionTime, column.clock()); applyCF(cfs.getIndexedColumnFamilyStore(columnName), valueKey, cfi, memtablesToFlush); } } } } ColumnFamily cachedRow = cfs.getRawCachedRow(key); if (cachedRow != null) cachedRow.addAll(cf); } } finally { flusherLock.readLock().unlock(); } // flush memtables that got filled up. usually mTF will be empty and this will be a no-op for (Map.Entry<ColumnFamilyStore, Memtable> entry : memtablesToFlush.entrySet()) entry.getKey().maybeSwitchMemtable(entry.getValue(), writeCommitLog); }