| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.cassandra.io.sstable; |
| |
| import org.apache.cassandra.io.util.File; |
| import java.io.IOException; |
| import java.util.*; |
| import java.util.stream.Stream; |
| |
| import org.apache.cassandra.io.util.FileUtils; |
| import org.apache.cassandra.schema.TableMetadata; |
| import org.apache.cassandra.schema.Schema; |
| import org.apache.cassandra.db.*; |
| import org.apache.cassandra.db.rows.*; |
| import org.apache.cassandra.db.partitions.*; |
| import org.apache.cassandra.io.sstable.format.SSTableFormat; |
| import org.apache.cassandra.io.sstable.format.SSTableReader; |
| |
| import org.apache.cassandra.Util; |
| |
| import static org.apache.cassandra.service.ActiveRepairService.*; |
| import static org.junit.Assert.assertEquals; |
| |
| public class SSTableUtils |
| { |
| // first configured keyspace and cf |
| public static String KEYSPACENAME = "Keyspace1"; |
| public static String CFNAME = "Standard1"; |
| |
| public SSTableUtils(String ksname, String cfname) |
| { |
| KEYSPACENAME = ksname; |
| CFNAME = cfname; |
| } |
| |
| /* |
| public static ColumnFamily createCF(long mfda, int ldt, Cell... cols) |
| { |
| return createCF(KEYSPACENAME, CFNAME, mfda, ldt, cols); |
| } |
| |
| public static ColumnFamily createCF(String ksname, String cfname, long mfda, int ldt, Cell... cols) |
| { |
| ColumnFamily cf = ArrayBackedSortedColumns.factory.create(ksname, cfname); |
| cf.delete(new DeletionInfo(mfda, ldt)); |
| for (Cell col : cols) |
| cf.addColumn(col); |
| return cf; |
| } |
| |
| public static File tempSSTableFile(String keyspaceName, String cfname) throws IOException |
| { |
| return tempSSTableFile(keyspaceName, cfname, 0); |
| } |
| */ |
| |
| public static File tempSSTableFile(String keyspaceName, String cfname, SSTableId id) throws IOException |
| { |
| File tempdir = FileUtils.createTempFile(keyspaceName, cfname); |
| if(!tempdir.tryDelete() || !tempdir.tryCreateDirectory()) |
| throw new IOException("Temporary directory creation failed."); |
| tempdir.deleteOnExit(); |
| File cfDir = new File(tempdir, keyspaceName + File.pathSeparator() + cfname); |
| cfDir.tryCreateDirectories(); |
| cfDir.deleteOnExit(); |
| File datafile = new File(new Descriptor(cfDir, keyspaceName, cfname, id, SSTableFormat.Type.BIG).filenameFor(Component.DATA)); |
| if (!datafile.createFileIfNotExists()) |
| throw new IOException("unable to create file " + datafile); |
| datafile.deleteOnExit(); |
| return datafile; |
| } |
| |
| public static void assertContentEquals(SSTableReader lhs, SSTableReader rhs) throws Exception |
| { |
| try (ISSTableScanner slhs = lhs.getScanner(); |
| ISSTableScanner srhs = rhs.getScanner()) |
| { |
| while (slhs.hasNext()) |
| { |
| UnfilteredRowIterator ilhs = slhs.next(); |
| assert srhs.hasNext() : "LHS contained more rows than RHS"; |
| UnfilteredRowIterator irhs = srhs.next(); |
| assertContentEquals(ilhs, irhs); |
| } |
| assert !srhs.hasNext() : "RHS contained more rows than LHS"; |
| } |
| } |
| |
| public static void assertContentEquals(UnfilteredRowIterator lhs, UnfilteredRowIterator rhs) |
| { |
| assertEquals(lhs.partitionKey(), rhs.partitionKey()); |
| assertEquals(lhs.partitionLevelDeletion(), rhs.partitionLevelDeletion()); |
| // iterate columns |
| while (lhs.hasNext()) |
| { |
| Unfiltered clhs = lhs.next(); |
| assert rhs.hasNext() : "LHS contained more columns than RHS for " + lhs.partitionKey(); |
| Unfiltered crhs = rhs.next(); |
| |
| assertEquals("Mismatched row/tombstone for " + lhs.partitionKey(), clhs, crhs); |
| } |
| assert !rhs.hasNext() : "RHS contained more columns than LHS for " + lhs.partitionKey(); |
| } |
| |
| /** |
| * @return A Context with chainable methods to configure and write a SSTable. |
| */ |
| public static Context prepare() |
| { |
| return new Context(); |
| } |
| |
| public static class Context |
| { |
| private String ksname = KEYSPACENAME; |
| private String cfname = CFNAME; |
| private Descriptor dest = null; |
| private boolean cleanup = true; |
| private SSTableId id = SSTableIdFactory.instance.defaultBuilder().generator(Stream.empty()).get(); |
| |
| Context() {} |
| |
| public Context ks(String ksname) |
| { |
| this.ksname = ksname; |
| return this; |
| } |
| |
| public Context cf(String cfname) |
| { |
| this.cfname = cfname; |
| return this; |
| } |
| |
| /** |
| * Set an alternate path for the written SSTable: if unset, the SSTable will |
| * be cleaned up on JVM exit. |
| */ |
| public Context dest(Descriptor dest) |
| { |
| this.dest = dest; |
| this.cleanup = false; |
| return this; |
| } |
| |
| /** |
| * Sets the identifier for the generated SSTable. Ignored if "dest()" is set. |
| */ |
| public Context id(SSTableId id) |
| { |
| this.id = id; |
| return this; |
| } |
| |
| public Collection<SSTableReader> write(Set<String> keys) throws IOException |
| { |
| Map<String, PartitionUpdate> map = new HashMap<>(); |
| for (String key : keys) |
| { |
| RowUpdateBuilder builder = new RowUpdateBuilder(Schema.instance.getTableMetadata(ksname, cfname), 0, key); |
| builder.clustering(key).add("val", key); |
| map.put(key, builder.buildUpdate()); |
| } |
| return write(map); |
| } |
| |
| public Collection<SSTableReader> write(SortedMap<DecoratedKey, PartitionUpdate> sorted) throws IOException |
| { |
| RegularAndStaticColumns.Builder builder = RegularAndStaticColumns.builder(); |
| for (PartitionUpdate update : sorted.values()) |
| builder.addAll(update.columns()); |
| final Iterator<Map.Entry<DecoratedKey, PartitionUpdate>> iter = sorted.entrySet().iterator(); |
| return write(sorted.size(), new Appender() |
| { |
| public SerializationHeader header() |
| { |
| return new SerializationHeader(true, Schema.instance.getTableMetadata(ksname, cfname), builder.build(), EncodingStats.NO_STATS); |
| } |
| |
| @Override |
| public boolean append(SSTableTxnWriter writer) throws IOException |
| { |
| if (!iter.hasNext()) |
| return false; |
| writer.append(iter.next().getValue().unfilteredIterator()); |
| return true; |
| } |
| }); |
| } |
| |
| public Collection<SSTableReader> write(Map<String, PartitionUpdate> entries) throws IOException |
| { |
| SortedMap<DecoratedKey, PartitionUpdate> sorted = new TreeMap<>(); |
| for (Map.Entry<String, PartitionUpdate> entry : entries.entrySet()) |
| sorted.put(Util.dk(entry.getKey()), entry.getValue()); |
| |
| return write(sorted); |
| } |
| |
| public Collection<SSTableReader> write(int expectedSize, Appender appender) throws IOException |
| { |
| File datafile = (dest == null) ? tempSSTableFile(ksname, cfname, id) : new File(dest.filenameFor(Component.DATA)); |
| TableMetadata metadata = Schema.instance.getTableMetadata(ksname, cfname); |
| ColumnFamilyStore cfs = Schema.instance.getColumnFamilyStoreInstance(metadata.id); |
| SerializationHeader header = appender.header(); |
| SSTableTxnWriter writer = SSTableTxnWriter.create(cfs, Descriptor.fromFilename(datafile.absolutePath()), expectedSize, UNREPAIRED_SSTABLE, NO_PENDING_REPAIR, false, 0, header); |
| while (appender.append(writer)) { /* pass */ } |
| Collection<SSTableReader> readers = writer.finish(true); |
| |
| // mark all components for removal |
| if (cleanup) |
| for (SSTableReader reader: readers) |
| for (Component component : reader.components) |
| new File(reader.descriptor.filenameFor(component)).deleteOnExit(); |
| return readers; |
| } |
| } |
| |
| public static abstract class Appender |
| { |
| public abstract SerializationHeader header(); |
| /** Called with an open writer until it returns false. */ |
| public abstract boolean append(SSTableTxnWriter writer) throws IOException; |
| } |
| } |