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* 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
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*
* 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
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package org.apache.cassandra.tools;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintStream;
import java.nio.ByteBuffer;
import java.util.Arrays;
import org.apache.cassandra.SchemaLoader;
import org.apache.cassandra.config.DatabaseDescriptor;
import org.apache.cassandra.db.ColumnFamily;
import org.apache.cassandra.db.ExpiringColumn;
import org.apache.cassandra.db.filter.QueryFilter;
import org.apache.cassandra.db.filter.QueryPath;
import org.apache.cassandra.dht.IPartitioner;
import org.apache.cassandra.io.sstable.Descriptor;
import org.apache.cassandra.io.sstable.SSTableReader;
import org.apache.cassandra.io.sstable.SSTableWriter;
import org.apache.cassandra.utils.ByteBufferUtil;
import static org.apache.cassandra.io.sstable.SSTableUtils.tempSSTableFile;
import static org.apache.cassandra.utils.ByteBufferUtil.bytesToHex;
import static org.apache.cassandra.utils.ByteBufferUtil.hexToBytes;
import static org.junit.Assert.assertTrue;
import org.apache.cassandra.Util;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.JSONValue;
import org.json.simple.parser.ParseException;
import org.junit.Test;
public class SSTableExportTest extends SchemaLoader
{
public String asHex(String str)
{
return bytesToHex(ByteBufferUtil.bytes(str));
}
@Test
public void testEnumeratekeys() throws IOException
{
File tempSS = tempSSTableFile("Keyspace1", "Standard1");
ColumnFamily cfamily = ColumnFamily.create("Keyspace1", "Standard1");
SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
// Add rowA
cfamily.addColumn(new QueryPath("Standard1", null, ByteBufferUtil.bytes("colA")), ByteBufferUtil.bytes("valA"), System.currentTimeMillis());
writer.append(Util.dk("rowA"), cfamily);
cfamily.clear();
// Add rowB
cfamily.addColumn(new QueryPath("Standard1", null, ByteBufferUtil.bytes("colB")), ByteBufferUtil.bytes("valB"), System.currentTimeMillis());
writer.append(Util.dk("rowB"), cfamily);
cfamily.clear();
writer.closeAndOpenReader();
// Enumerate and verify
File temp = File.createTempFile("Standard1", ".txt");
SSTableExport.enumeratekeys(writer.getFilename(), new PrintStream(temp.getPath()));
FileReader file = new FileReader(temp);
char[] buf = new char[(int) temp.length()];
file.read(buf);
String output = new String(buf);
String sep = System.getProperty("line.separator");
assert output.equals(asHex("rowA") + sep + asHex("rowB") + sep) : output;
}
@Test
public void testExportSimpleCf() throws IOException
{
File tempSS = tempSSTableFile("Keyspace1", "Standard1");
ColumnFamily cfamily = ColumnFamily.create("Keyspace1", "Standard1");
SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
int nowInSec = (int)(System.currentTimeMillis() / 1000) + 42; //live for 42 seconds
// Add rowA
cfamily.addColumn(new QueryPath("Standard1", null, ByteBufferUtil.bytes("colA")), ByteBufferUtil.bytes("valA"), System.currentTimeMillis());
cfamily.addColumn(null, new ExpiringColumn(ByteBufferUtil.bytes("colExp"), ByteBufferUtil.bytes("valExp"), System.currentTimeMillis(), 42, nowInSec));
writer.append(Util.dk("rowA"), cfamily);
cfamily.clear();
// Add rowB
cfamily.addColumn(new QueryPath("Standard1", null, ByteBufferUtil.bytes("colB")), ByteBufferUtil.bytes("valB"), System.currentTimeMillis());
writer.append(Util.dk("rowB"), cfamily);
cfamily.clear();
// Add rowExclude
cfamily.addColumn(new QueryPath("Standard1", null, ByteBufferUtil.bytes("colX")), ByteBufferUtil.bytes("valX"), System.currentTimeMillis());
writer.append(Util.dk("rowExclude"), cfamily);
cfamily.clear();
SSTableReader reader = writer.closeAndOpenReader();
// Export to JSON and verify
File tempJson = File.createTempFile("Standard1", ".json");
SSTableExport.export(reader, new PrintStream(tempJson.getPath()), new String[]{asHex("rowExclude")});
JSONObject json = (JSONObject)JSONValue.parse(new FileReader(tempJson));
JSONArray rowA = (JSONArray)json.get(asHex("rowA"));
JSONArray colA = (JSONArray)rowA.get(0);
assert hexToBytes((String)colA.get(1)).equals(ByteBufferUtil.bytes("valA"));
JSONArray colExp = (JSONArray)rowA.get(1);
assert ((Long)colExp.get(4)) == 42;
assert ((Long)colExp.get(5)) == nowInSec;
JSONArray rowB = (JSONArray)json.get(asHex("rowB"));
JSONArray colB = (JSONArray)rowB.get(0);
assert !(Boolean)colB.get(3);
JSONArray rowExclude = (JSONArray)json.get(asHex("rowExclude"));
assert rowExclude == null;
}
@Test
public void testExportSuperCf() throws IOException
{
File tempSS = tempSSTableFile("Keyspace1", "Super4");
ColumnFamily cfamily = ColumnFamily.create("Keyspace1", "Super4");
SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
// Add rowA
cfamily.addColumn(new QueryPath("Super4", ByteBufferUtil.bytes("superA"), ByteBufferUtil.bytes("colA")), ByteBufferUtil.bytes("valA"), System.currentTimeMillis());
writer.append(Util.dk("rowA"), cfamily);
cfamily.clear();
// Add rowB
cfamily.addColumn(new QueryPath("Super4", ByteBufferUtil.bytes("superB"), ByteBufferUtil.bytes("colB")), ByteBufferUtil.bytes("valB"), System.currentTimeMillis());
writer.append(Util.dk("rowB"), cfamily);
cfamily.clear();
// Add rowExclude
cfamily.addColumn(new QueryPath("Super4", ByteBufferUtil.bytes("superX"), ByteBufferUtil.bytes("colX")), ByteBufferUtil.bytes("valX"), System.currentTimeMillis());
writer.append(Util.dk("rowExclude"), cfamily);
cfamily.clear();
SSTableReader reader = writer.closeAndOpenReader();
// Export to JSON and verify
File tempJson = File.createTempFile("Super4", ".json");
SSTableExport.export(reader, new PrintStream(tempJson.getPath()), new String[]{asHex("rowExclude")});
JSONObject json = (JSONObject)JSONValue.parse(new FileReader(tempJson));
JSONObject rowA = (JSONObject)json.get(asHex("rowA"));
JSONObject superA = (JSONObject)rowA.get(cfamily.getComparator().getString(ByteBufferUtil.bytes("superA")));
JSONArray subColumns = (JSONArray)superA.get("subColumns");
JSONArray colA = (JSONArray)subColumns.get(0);
JSONObject rowExclude = (JSONObject)json.get(asHex("rowExclude"));
assert hexToBytes((String)colA.get(1)).equals(ByteBufferUtil.bytes("valA"));
assert !(Boolean)colA.get(3);
assert rowExclude == null;
}
@Test
public void testRoundTripStandardCf() throws IOException, ParseException
{
File tempSS = tempSSTableFile("Keyspace1", "Standard1");
ColumnFamily cfamily = ColumnFamily.create("Keyspace1", "Standard1");
SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
// Add rowA
cfamily.addColumn(new QueryPath("Standard1", null, ByteBufferUtil.bytes("name")), ByteBufferUtil.bytes("val"), System.currentTimeMillis());
writer.append(Util.dk("rowA"), cfamily);
cfamily.clear();
// Add rowExclude
cfamily.addColumn(new QueryPath("Standard1", null, ByteBufferUtil.bytes("name")), ByteBufferUtil.bytes("val"), System.currentTimeMillis());
writer.append(Util.dk("rowExclude"), cfamily);
cfamily.clear();
SSTableReader reader = writer.closeAndOpenReader();
// Export to JSON and verify
File tempJson = File.createTempFile("Standard1", ".json");
SSTableExport.export(reader, new PrintStream(tempJson.getPath()), new String[]{asHex("rowExclude")});
// Import JSON to another SSTable file
File tempSS2 = tempSSTableFile("Keyspace1", "Standard1");
SSTableImport.importJson(tempJson.getPath(), "Keyspace1", "Standard1", tempSS2.getPath());
reader = SSTableReader.open(Descriptor.fromFilename(tempSS2.getPath()));
QueryFilter qf = QueryFilter.getNamesFilter(Util.dk("rowA"), new QueryPath("Standard1", null, null), ByteBufferUtil.bytes("name"));
ColumnFamily cf = qf.getSSTableColumnIterator(reader).getColumnFamily();
assertTrue(cf != null);
assertTrue(cf.getColumn(ByteBufferUtil.bytes("name")).value().equals(hexToBytes("76616c")));
qf = QueryFilter.getNamesFilter(Util.dk("rowExclude"), new QueryPath("Standard1", null, null), ByteBufferUtil.bytes("name"));
cf = qf.getSSTableColumnIterator(reader).getColumnFamily();
assert cf == null;
}
}