-
Notifications
You must be signed in to change notification settings - Fork 0
/
TestSSTableWriterSplit.java
140 lines (119 loc) · 3.95 KB
/
TestSSTableWriterSplit.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
import java.nio.ByteBuffer;
import java.io.*;
import java.util.*;
import java.lang.*;
import java.net.InetAddress;
import org.apache.cassandra.io.sstable.CQLSSTableWriter;
import org.apache.cassandra.exceptions.InvalidRequestException;
import org.apache.cassandra.config.Config;
import com.datastax.driver.core.Cluster;
import com.datastax.driver.core.Metadata;
import com.datastax.driver.core.Session;
import com.datastax.driver.core.PreparedStatement;
import com.datastax.driver.core.BoundStatement;
import com.datastax.driver.core.Host;
public class TestSSTableWriterSplit {
static String filename;
String outdir;
String ip = "127.0.0.1";
String keyspace = "";
String table = "";
String delimiter = ",";
String schema = "";
String insert = "";
String dummyString = "";
long dummyLong = 0;
Cluster cluster;
Session session;
Metadata metadata;
PreparedStatement stmt;
private void init() {
cluster = Cluster.builder().addContactPoint(ip).build();
metadata = cluster.getMetadata();
session = cluster.newSession();
stmt = session.prepare(insert);
}
private void cleanup() {
session.close();
cluster.close();
}
private boolean contains(String pkey) {
BoundStatement bind = stmt.bind(pkey, dummyLong, dummyString);
ByteBuffer bb = bind.getBytesUnsafe(0);
Set<Host> endpts = metadata.getReplicas(keyspace, bb);
for (Host h : endpts)
if (ip.equalsIgnoreCase(h.getAddress().getHostAddress()))
return true;
return false;
}
public void run(String[] args) throws IOException {
if (args.length != 5) {
System.err.println("Expecting 5 arguments: <filename> <output directory> <keyspace> <tablename> <IP address>");
System.exit(1);
}
filename = args[0];
outdir = args[1];
keyspace = args[2];
table = args[3];
ip = args[4];
Config.setClientMode(true);
BufferedReader reader = new BufferedReader(new FileReader(filename));
File directory = new File(outdir);
if (!directory.exists())
directory.mkdirs();
CsvParser parser = new CsvParser();
schema = "CREATE TABLE IF NOT EXISTS " + keyspace + "." + table + " (pkey TEXT, ccol BIGINT, data TEXT, PRIMARY KEY ((pkey), ccol));";
insert = "INSERT INTO " + keyspace + "." + table + " (pkey, ccol, data) VALUES (?, ?, ?);";
CQLSSTableWriter writer = CQLSSTableWriter.builder().inDirectory(outdir).forTable(schema).using(insert).build();
String line;
int lineNumber = 1;
long timestamp = System.currentTimeMillis() * 1000;
init();
while ((line = reader.readLine()) != null) {
if (parser.parse(line, delimiter, lineNumber)) {
// if (0 == lineNumber % 10000)
// System.err.println("Got to line " + lineNumber);
if (contains(parser.pkey))
parser.addRow(writer);
}
lineNumber++;
}
cleanup();
writer.close();
System.exit(0);
}
static class CsvParser {
public String pkey;
public long ccol;
public String data;
boolean parse(String line, String delimiter, int lineNumber) {
String[] columns = line.split(delimiter);
if (3 != columns.length) {
System.err.println(String.format("Invalid input '%s' at line %d of %s", line, lineNumber, filename));
return false;
}
try {
pkey = columns[0].trim();
ccol = Long.parseLong(columns[1].trim());
data = columns[2].trim();
return true;
}
catch (NumberFormatException e) {
System.err.println(String.format("Invalid number in input '%s' at line %d of %s", line, lineNumber, filename));
return false;
}
}
void addRow(CQLSSTableWriter writer) {
try {
writer.addRow(pkey, ccol, data);
}
catch (Exception e) {
System.err.println("Couldn't addRow: " + e.getMessage());
}
}
}
public static void main(String [] args) throws IOException {
TestSSTableWriterSplit n = new TestSSTableWriterSplit();
n.run(args);
}
}