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* 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
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package org.apache.cassandra.tools;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
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 java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import org.apache.cassandra.SchemaLoader;
import org.apache.cassandra.Util;
import org.apache.cassandra.db.*;
import org.apache.cassandra.db.filter.QueryFilter;
import org.apache.cassandra.db.marshal.UTF8Type;
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 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));
}
public SSTableWriter getDummyWriter() throws IOException
{
File tempSS = tempSSTableFile("Keyspace1", "Standard1");
ColumnFamily cfamily = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
// Add rowA
cfamily.addColumn(Util.cellname("colA"), ByteBufferUtil.bytes("valA"), System.currentTimeMillis());
writer.append(Util.dk("rowA"), cfamily);
cfamily.clear();
cfamily.addColumn(Util.cellname("colB"), ByteBufferUtil.bytes("valB"), System.currentTimeMillis());
writer.append(Util.dk("rowB"), cfamily);
cfamily.clear();
return writer;
}
public PrintStream dummyStream = new PrintStream(new OutputStream(){
public void write(int b) throws IOException { throw new IOException(); }
});
@Test
public void testEnumeratekeys() throws IOException
{
File tempSS = tempSSTableFile("Keyspace1", "Standard1");
ColumnFamily cfamily = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
// Add rowA
cfamily.addColumn(Util.cellname("colA"), ByteBufferUtil.bytes("valA"), System.currentTimeMillis());
writer.append(Util.dk("rowA"), cfamily);
cfamily.clear();
// Add rowB
cfamily.addColumn(Util.cellname("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(Descriptor.fromFilename(writer.getFilename()), new PrintStream(temp.getPath()));
try (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, ParseException
{
File tempSS = tempSSTableFile("Keyspace1", "Standard1");
ColumnFamily cfamily = TreeMapBackedSortedColumns.factory.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(Util.cellname("colA"), ByteBufferUtil.bytes("valA"), System.currentTimeMillis());
cfamily.addColumn(new ExpiringCell(Util.cellname("colExp"), ByteBufferUtil.bytes("valExp"), System.currentTimeMillis(), 42, nowInSec));
writer.append(Util.dk("rowA"), cfamily);
cfamily.clear();
// Add rowB
cfamily.addColumn(Util.cellname("colB"), ByteBufferUtil.bytes("valB"), System.currentTimeMillis());
writer.append(Util.dk("rowB"), cfamily);
cfamily.clear();
// Add rowExclude
cfamily.addColumn(Util.cellname("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")});
JSONArray json = (JSONArray)JSONValue.parseWithException(new FileReader(tempJson));
assertEquals("unexpected number of rows", 2, json.size());
JSONObject rowA = (JSONObject)json.get(0);
assertEquals("unexpected number of keys", 2, rowA.keySet().size());
assertEquals("unexpected row key",asHex("rowA"),rowA.get("key"));
JSONArray colsA = (JSONArray)rowA.get("columns");
JSONArray colA = (JSONArray)colsA.get(0);
assert hexToBytes((String)colA.get(1)).equals(ByteBufferUtil.bytes("valA"));
JSONArray colExp = (JSONArray)colsA.get(1);
assert ((Long)colExp.get(4)) == 42;
assert ((Long)colExp.get(5)) == nowInSec;
JSONObject rowB = (JSONObject)json.get(1);
assertEquals("unexpected number of keys", 2, rowB.keySet().size());
assertEquals("unexpected row key",asHex("rowB"),rowB.get("key"));
JSONArray colsB = (JSONArray)rowB.get("columns");
JSONArray colB = (JSONArray)colsB.get(0);
assert colB.size() == 3;
}
@Test
public void testRoundTripStandardCf() throws IOException
{
ColumnFamilyStore cfs = Keyspace.open("Keyspace1").getColumnFamilyStore("Standard1");
File tempSS = tempSSTableFile("Keyspace1", "Standard1");
ColumnFamily cfamily = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
// Add rowA
cfamily.addColumn(Util.cellname("name"), ByteBufferUtil.bytes("val"), System.currentTimeMillis());
writer.append(Util.dk("rowA"), cfamily);
cfamily.clear();
// Add rowExclude
cfamily.addColumn(Util.cellname("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");
new SSTableImport().importJson(tempJson.getPath(), "Keyspace1", "Standard1", tempSS2.getPath());
reader = SSTableReader.open(Descriptor.fromFilename(tempSS2.getPath()));
QueryFilter qf = Util.namesQueryFilter(cfs, Util.dk("rowA"), "name");
ColumnFamily cf = qf.getSSTableColumnIterator(reader).getColumnFamily();
qf.collateOnDiskAtom(cf, qf.getSSTableColumnIterator(reader), Integer.MIN_VALUE);
assertNotNull(cf);
assertEquals(hexToBytes("76616c"), cf.getColumn(Util.cellname("name")).value());
qf = Util.namesQueryFilter(cfs, Util.dk("rowExclude"), "name");
cf = qf.getSSTableColumnIterator(reader).getColumnFamily();
assert cf == null;
}
@Test
public void testExportCounterCf() throws IOException, ParseException
{
File tempSS = tempSSTableFile("Keyspace1", "Counter1");
ColumnFamily cfamily = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Counter1");
SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
// Add rowA
cfamily.addColumn(new CounterCell(Util.cellname("colA"), 42, System.currentTimeMillis()));
writer.append(Util.dk("rowA"), cfamily);
cfamily.clear();
SSTableReader reader = writer.closeAndOpenReader();
// Export to JSON and verify
File tempJson = File.createTempFile("Counter1", ".json");
SSTableExport.export(reader, new PrintStream(tempJson.getPath()), new String[0]);
JSONArray json = (JSONArray)JSONValue.parseWithException(new FileReader(tempJson));
assertEquals("unexpected number of rows", 1, json.size());
JSONObject row = (JSONObject)json.get(0);
assertEquals("unexpected number of keys", 2, row.keySet().size());
assertEquals("unexpected row key",asHex("rowA"),row.get("key"));
JSONArray cols = (JSONArray)row.get("columns");
JSONArray colA = (JSONArray)cols.get(0);
assert hexToBytes((String)colA.get(0)).equals(ByteBufferUtil.bytes("colA"));
assert ((String) colA.get(3)).equals("c");
assert (Long) colA.get(4) == Long.MIN_VALUE;
}
@Test
public void testEscapingDoubleQuotes() throws IOException, ParseException
{
File tempSS = tempSSTableFile("Keyspace1", "ValuesWithQuotes");
ColumnFamily cfamily = TreeMapBackedSortedColumns.factory.create("Keyspace1", "ValuesWithQuotes");
SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
// Add rowA
cfamily.addColumn(new Cell(Util.cellname("data"), UTF8Type.instance.fromString("{\"foo\":\"bar\"}")));
writer.append(Util.dk("rowA"), cfamily);
cfamily.clear();
SSTableReader reader = writer.closeAndOpenReader();
// Export to JSON and verify
File tempJson = File.createTempFile("ValuesWithQuotes", ".json");
SSTableExport.export(reader, new PrintStream(tempJson.getPath()), new String[0]);
JSONArray json = (JSONArray)JSONValue.parseWithException(new FileReader(tempJson));
assertEquals("unexpected number of rows", 1, json.size());
JSONObject row = (JSONObject)json.get(0);
assertEquals("unexpected number of keys", 2, row.keySet().size());
assertEquals("unexpected row key",asHex("rowA"),row.get("key"));
JSONArray cols = (JSONArray)row.get("columns");
JSONArray colA = (JSONArray)cols.get(0);
assert hexToBytes((String)colA.get(0)).equals(ByteBufferUtil.bytes("data"));
assert colA.get(1).equals("{\"foo\":\"bar\"}");
}
@Test
public void testExportColumnsWithMetadata() throws IOException, ParseException
{
File tempSS = tempSSTableFile("Keyspace1", "Standard1");
ColumnFamily cfamily = TreeMapBackedSortedColumns.factory.create("Keyspace1", "Standard1");
SSTableWriter writer = new SSTableWriter(tempSS.getPath(), 2);
// Add rowA
cfamily.addColumn(Util.cellname("colName"), ByteBufferUtil.bytes("val"), System.currentTimeMillis());
cfamily.addColumn(Util.cellname("colName1"), ByteBufferUtil.bytes("val1"), System.currentTimeMillis());
cfamily.delete(new DeletionInfo(0, 0));
writer.append(Util.dk("rowA"), cfamily);
SSTableReader reader = writer.closeAndOpenReader();
// Export to JSON and verify
File tempJson = File.createTempFile("CFWithDeletionInfo", ".json");
SSTableExport.export(reader, new PrintStream(tempJson.getPath()), new String[0]);
JSONArray json = (JSONArray)JSONValue.parseWithException(new FileReader(tempJson));
System.out.println(json.toJSONString());
assertEquals("unexpected number of rows", 1, json.size());
JSONObject row = (JSONObject)json.get(0);
assertEquals("unexpected number of keys", 3, row.keySet().size());
assertEquals("unexpected row key",asHex("rowA"),row.get("key"));
// check that the row key is there and present
String rowKey = (String) row.get("key");
assertNotNull("expecing key to be present", rowKey);
assertEquals("key did not match", ByteBufferUtil.bytes("rowA"), hexToBytes(rowKey));
// check that there is metadata and that it contains deletionInfo
JSONObject meta = (JSONObject) row.get("metadata");
assertNotNull("expecing metadata to be present", meta);
assertEquals("unexpected number of metadata entries", 1, meta.keySet().size());
JSONObject serializedDeletionInfo = (JSONObject) meta.get("deletionInfo");
assertNotNull("expecing deletionInfo to be present", serializedDeletionInfo);
assertEquals(
"unexpected serialization format for topLevelDeletion",
"{\"markedForDeleteAt\":0,\"localDeletionTime\":0}",
serializedDeletionInfo.toJSONString());
// check the colums are what we put in
JSONArray cols = (JSONArray) row.get("columns");
assertNotNull("expecing columns to be present", cols);
assertEquals("expecting two columns", 2, cols.size());
JSONArray col1 = (JSONArray) cols.get(0);
assertEquals("column name did not match", ByteBufferUtil.bytes("colName"), hexToBytes((String) col1.get(0)));
assertEquals("column value did not match", ByteBufferUtil.bytes("val"), hexToBytes((String) col1.get(1)));
JSONArray col2 = (JSONArray) cols.get(1);
assertEquals("column name did not match", ByteBufferUtil.bytes("colName1"), hexToBytes((String) col2.get(0)));
assertEquals("column value did not match", ByteBufferUtil.bytes("val1"), hexToBytes((String) col2.get(1)));
}
}