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Expose *SCAN commands to BinaryJedis

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* method signatures are a bit similar to Jedis's *SCAN
** but it takes parameters to byte[] instead of String
* ScanParams : allow match pattern with byte[]
* ScanResult : add method to get cursor with byte[] type
* *SCAN for BinaryJedis unit tests included
This commit is contained in:
Jungtaek Lim
2014-03-04 23:54:44 +09:00
parent 4e78b811be
commit 0cd32a6103
7 changed files with 233 additions and 2 deletions
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68
src/main/java/redis/clients/jedis/BinaryJedis.java
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@@ -4,6 +4,7 @@ import static redis.clients.jedis.Protocol.toByteArray;
import java.io.Closeable;
import java.net.URI;
import java.util.AbstractMap;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
@@ -3417,4 +3418,71 @@ public class BinaryJedis implements BasicCommands, BinaryJedisCommands,
return client.getIntegerReply();
}
public ScanResult<byte[]> scan(final byte[] cursor) {
return scan(cursor, new ScanParams());
}
public ScanResult<byte[]> scan(final byte[] cursor, final ScanParams params) {
checkIsInMulti();
client.scan(cursor, params);
List<Object> result = client.getObjectMultiBulkReply();
byte[] newcursor = (byte[]) result.get(0);
List<byte[]> rawResults = (List<byte[]>) result.get(1);
return new ScanResult<byte[]>(newcursor, rawResults);
}
public ScanResult<Map.Entry<byte[], byte[]>> hscan(final byte[] key,
final byte[] cursor) {
return hscan(key, cursor, new ScanParams());
}
public ScanResult<Map.Entry<byte[], byte[]>> hscan(final byte[] key,
final byte[] cursor, final ScanParams params) {
checkIsInMulti();
client.hscan(key, cursor, params);
List<Object> result = client.getObjectMultiBulkReply();
byte[] newcursor = (byte[]) result.get(0);
List<Map.Entry<byte[], byte[]>> results = new ArrayList<Map.Entry<byte[], byte[]>>();
List<byte[]> rawResults = (List<byte[]>) result.get(1);
Iterator<byte[]> iterator = rawResults.iterator();
while (iterator.hasNext()) {
results.add(new AbstractMap.SimpleEntry<byte[], byte[]>(iterator.next(),
iterator.next()));
}
return new ScanResult<Map.Entry<byte[], byte[]>>(newcursor, results);
}
public ScanResult<byte[]> sscan(final byte[] key, final byte[] cursor) {
return sscan(key, cursor, new ScanParams());
}
public ScanResult<byte[]> sscan(final byte[] key, final byte[] cursor,
final ScanParams params) {
checkIsInMulti();
client.sscan(key, cursor, params);
List<Object> result = client.getObjectMultiBulkReply();
byte[] newcursor = (byte[]) result.get(0);
List<byte[]> rawResults = (List<byte[]>) result.get(1);
return new ScanResult<byte[]>(newcursor, rawResults);
}
public ScanResult<Tuple> zscan(final byte[] key, final byte[] cursor) {
return zscan(key, cursor, new ScanParams());
}
public ScanResult<Tuple> zscan(final byte[] key, final byte[] cursor,
final ScanParams params) {
checkIsInMulti();
client.zscan(key, cursor, params);
List<Object> result = client.getObjectMultiBulkReply();
byte[] newcursor = (byte[]) result.get(0);
List<Tuple> results = new ArrayList<Tuple>();
List<byte[]> rawResults = (List<byte[]>) result.get(1);
Iterator<byte[]> iterator = rawResults.iterator();
while (iterator.hasNext()) {
results.add(new Tuple(iterator.next(), Double
.valueOf(SafeEncoder.encode(iterator.next()))));
}
return new ScanResult<Tuple>(newcursor, results);
}
}