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package io.rebloom.client;
import org.apache.commons.pool2.impl.GenericObjectPoolConfig;
import redis.clients.jedis.*;
import redis.clients.jedis.Client;
import redis.clients.jedis.commands.ProtocolCommand;
import redis.clients.jedis.exceptions.JedisException;
import redis.clients.jedis.util.SafeEncoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.stream.Collectors;
/**
* @author TommyYang on 2018/12/17
*/
public class ClusterClient extends JedisCluster {
public ClusterClient(HostAndPort node) {
super(node);
}
public ClusterClient(HostAndPort node, int timeout) {
super(node, timeout);
}
public ClusterClient(HostAndPort node, int timeout, int maxAttempts) {
super(node, timeout, maxAttempts);
}
public ClusterClient(HostAndPort node, GenericObjectPoolConfig poolConfig) {
super(node, poolConfig);
}
public ClusterClient(HostAndPort node, int timeout, GenericObjectPoolConfig poolConfig) {
super(node, timeout, poolConfig);
}
public ClusterClient(HostAndPort node, int timeout, int maxAttempts, GenericObjectPoolConfig poolConfig) {
super(node, timeout, maxAttempts, poolConfig);
}
public ClusterClient(HostAndPort node, int connectionTimeout, int soTimeout, int maxAttempts, GenericObjectPoolConfig poolConfig) {
super(node, connectionTimeout, soTimeout, maxAttempts, poolConfig);
}
public ClusterClient(HostAndPort node, int connectionTimeout, int soTimeout, int maxAttempts, String password, GenericObjectPoolConfig poolConfig) {
super(node, connectionTimeout, soTimeout, maxAttempts, password, poolConfig);
}
public ClusterClient(HostAndPort node, int connectionTimeout, int soTimeout, int maxAttempts, String password, String clientName, GenericObjectPoolConfig poolConfig) {
super(node, connectionTimeout, soTimeout, maxAttempts, password, clientName, poolConfig);
}
public ClusterClient(Set nodes) {
super(nodes);
}
public ClusterClient(Set nodes, int timeout) {
super(nodes, timeout);
}
public ClusterClient(Set nodes, int timeout, int maxAttempts) {
super(nodes, timeout, maxAttempts);
}
public ClusterClient(Set nodes, GenericObjectPoolConfig poolConfig) {
super(nodes, poolConfig);
}
public ClusterClient(Set nodes, int timeout, GenericObjectPoolConfig poolConfig) {
super(nodes, timeout, poolConfig);
}
public ClusterClient(Set jedisClusterNode, int timeout, int maxAttempts, GenericObjectPoolConfig poolConfig) {
super(jedisClusterNode, timeout, maxAttempts, poolConfig);
}
public ClusterClient(Set jedisClusterNode, int connectionTimeout, int soTimeout, int maxAttempts, GenericObjectPoolConfig poolConfig) {
super(jedisClusterNode, connectionTimeout, soTimeout, maxAttempts, poolConfig);
}
public ClusterClient(Set jedisClusterNode, int connectionTimeout, int soTimeout, int maxAttempts, String password, GenericObjectPoolConfig poolConfig) {
super(jedisClusterNode, connectionTimeout, soTimeout, maxAttempts, password, poolConfig);
}
public ClusterClient(Set jedisClusterNode, int connectionTimeout, int soTimeout, int maxAttempts, String password, String clientName, GenericObjectPoolConfig poolConfig) {
super(jedisClusterNode, connectionTimeout, soTimeout, maxAttempts, password, clientName, poolConfig);
}
private void sendCommand(Connection conn, String key, ProtocolCommand command, String ...args) {
String[] fullArgs = new String[args.length + 1];
fullArgs[0] = key;
System.arraycopy(args, 0, fullArgs, 1, args.length);
conn.sendCommand(command, fullArgs);
}
/**
* Reserve a bloom filter.
* @param name The key of the filter
* @param initCapacity Optimize for this many items
* @param errorRate The desired rate of false positives
*
* @return true if the filter create success, false if the filter create error.
*
* Note that if a filter is not reserved, a new one is created when {@link #add(String, byte[])}
* is called.
*/
public boolean createFilter(String name, long initCapacity, double errorRate) {
return (new JedisClusterCommand(this.connectionHandler, this.maxAttempts) {
public Boolean execute(Jedis connection) {
Connection conn = connection.getClient();
conn.sendCommand(Command.RESERVE, name, errorRate + "", initCapacity + "");
return conn.getStatusCodeReply().equals("OK");
}
}).run(name);
}
/**
* Adds an item to the filter
* @param name The name of the filter
* @param value The value to add to the filter
* @return true if the item was not previously in the filter.
*/
public boolean add(String name, String value) {
return add(name, SafeEncoder.encode(value));
}
/**
* Like {@link #add(String, String)}, but allows you to store non-string items
* @param name Name of the filter
* @param value Value to add to the filter
* @return true if the item was not previously in the filter
*/
public boolean add(String name, byte[] value) {
return (new JedisClusterCommand(this.connectionHandler, this.maxAttempts) {
public Boolean execute(Jedis connection) {
Connection conn = connection.getClient();
conn.sendCommand(Command.ADD, name.getBytes(), value);
return conn.getIntegerReply() != 0;
}
}).run(name);
}
/**
* add one or more items to the bloom filter, by default creating it if it does not yet exist
*
* @param name The name of the filter
* @param options {@link io.rebloom.client.InsertOptions}
* @param items items to add to the filter
* @return
*/
public boolean[] insert(String name, InsertOptions options, String... items) {
return (new JedisClusterCommand(this.connectionHandler, this.maxAttempts) {
public boolean[] execute(Jedis connection) {
Connection conn = connection.getClient();
final List args = new ArrayList<>();
args.addAll(options.getOptions());
args.add(Keywords.ITEMS.getRaw());
for (String item : items) {
args.add(SafeEncoder.encode(item));
}
return sendMultiCommand(conn, Command.INSERT, name.getBytes(), args.toArray(new byte[args.size()][]));
}
}).run(name);
}
/**
* Check if an item exists in the filter
* @param name Name (key) of the filter
* @param value Value to check for
* @return true if the item may exist in the filter, false if the item does not exist in the filter
*/
public boolean exists(String name, String value) {
return exists(name, SafeEncoder.encode(value));
}
/**
* Check if an item exists in the filter. Similar to {@link #exists(String, String)}
* @param name Key of the filter to check
* @param value Value to check for
* @return true if the item may exist in the filter, false if the item does not exist in the filter.
*/
public boolean exists(String name, byte[] value) {
return (new JedisClusterCommand(this.connectionHandler, this.maxAttempts) {
public Boolean execute(Jedis connection) {
Connection conn = connection.getClient();
conn.sendCommand(Command.EXISTS, name.getBytes(), value);
return conn.getIntegerReply() != 0;
}
}).run(name);
}
/**
* Add one or more items to a filter
* @param name Name of the filter
* @param values values to add to the filter.
* @return An array of booleans of the same length as the number of values.
* Each boolean values indicates whether the corresponding element was previously in the
* filter or not. A true value means the item did not previously exist, whereas a
* false value means it may have previously existed.
*
* @see #add(String, String)
*/
public boolean[] addMulti(String name, byte[]... values){
return (new JedisClusterCommand(this.connectionHandler, this.maxAttempts) {
public boolean[] execute(Jedis connection) {
Connection conn = connection.getClient();
return sendMultiCommand(conn, Command.MADD, name.getBytes(), values);
}
}).run(name);
}
public boolean[] addMulti(String name, String... values){
return (new JedisClusterCommand(this.connectionHandler, this.maxAttempts) {
public boolean[] execute(Jedis connection) {
Connection conn = connection.getClient();
return sendMultiCommand(conn, Command.MADD, name, values);
}
}).run(name);
}
/**
* Check if one or more items exist in the filter
* @param name Name of the filter to check
* @param values values to check for
* @return An array of booleans. A true value means the corresponding value may exist, false means it does not exist
*/
public boolean[] existsMulti(String name, byte[]... values) {
return (new JedisClusterCommand(this.connectionHandler, this.maxAttempts) {
public boolean[] execute(Jedis connection) {
Connection conn = connection.getClient();
return sendMultiCommand(conn, Command.MEXISTS, name.getBytes(), values);
}
}).run(name);
}
public boolean[] existsMulti(String name, String... values) {
return (new JedisClusterCommand(this.connectionHandler, this.maxAttempts) {
public boolean[] execute(Jedis connection) {
Connection conn = connection.getClient();
return sendMultiCommand(conn, Command.MEXISTS, name, values);
}
}).run(name);
}
/**
* Remove the filter
* @param name
* @return true if delete the filter, false is not delete the filter
*/
public boolean delete(String name) {
return (new JedisClusterCommand(this.connectionHandler, this.maxAttempts) {
public Boolean execute(Jedis connection) {
Connection conn = connection.getClient();
((Client) conn).del(name);
return conn.getIntegerReply() != 0;
}
}).run(name);
}
/**
* TOPK.RESERVE key topk width depth decay
*
* Reserve a topk filter.
* @param key The key of the filter
* @param topk
* @param width
* @param depth
* @param decay
*
* Note that if a filter is not reserved, a new one is created when {@link #add(String, byte[])}
* is called.
*/
public void topkCreateFilter(String key, long topk, long width, long depth, double decay) {
(new JedisClusterCommand(this.connectionHandler, this.maxAttempts){
@Override
public Void execute(Jedis jedis) {
Connection conn = jedis.getClient();
conn.sendCommand(TopKCommand.RESERVE, SafeEncoder.encode(key), Protocol.toByteArray(topk),
Protocol.toByteArray(width), Protocol.toByteArray(depth),Protocol.toByteArray(decay));
String resp = conn.getStatusCodeReply();
if (!resp.equals("OK")){
throw new JedisException(resp);
}
return null;
}
}).run(key);
}
/**
* TOPK.ADD key item [item ...]
*
* Adds an item to the filter
* @param key The key of the filter
* @param items The items to add to the filter
* @return list of items dropped from the list.
*/
public List topkAdd(String key, String ...items) {
return (new JedisClusterCommand>(this.connectionHandler, this.maxAttempts){
@Override
public List execute(Jedis jedis) {
Connection conn = jedis.getClient();
sendCommand(conn, key, TopKCommand.ADD, items);
return conn.getMultiBulkReply();
}
}).run(key);
}
/**
* TOPK.INCRBY key item increment [item increment ...]
*
* Adds an item to the filter
* @param key The key of the filter
* @param item The item to increment
* @return item dropped from the list.
*/
public String topkIncrBy(String key, String item, long increment) {
return (new JedisClusterCommand(this.connectionHandler, this.maxAttempts){
@Override
public String execute(Jedis jedis) {
Connection conn = jedis.getClient();
conn.sendCommand(TopKCommand.INCRBY, SafeEncoder.encode(key), SafeEncoder.encode(item), Protocol.toByteArray(increment));
return conn.getMultiBulkReply().get(0);
}
}).run(key);
}
/**
* TOPK.QUERY key item [item ...]
*
* Checks whether an item is one of Top-K items.
*
* @param key The key of the filter
* @param items The items to check in the list
* @return list of indicator for each item requested
*/
public List topkQuery(String key, String ...items) {
return (new JedisClusterCommand>(this.connectionHandler, this.maxAttempts){
@Override
public List execute(Jedis jedis) {
Connection conn = jedis.getClient();
sendCommand(conn, key, TopKCommand.QUERY, items);
return conn.getIntegerMultiBulkReply()
.stream()
.map(s -> s != 0)
.collect(Collectors.toList());
}
}).run(key);
}
/**
* TOPK.COUNT key item [item ...]
*
* Returns count for an item.
*
* @param key The key of the filter
* @param items The items to check in the list
* @return list of counters per item.
*/
public List topkCount(String key, String ...items) {
return (new JedisClusterCommand>(this.connectionHandler, this.maxAttempts){
@Override
public List execute(Jedis jedis) {
Connection conn = jedis.getClient();
sendCommand(conn, key, TopKCommand.COUNT, items);
return conn.getIntegerMultiBulkReply();
}
}).run(key);
}
/**
* TOPK.LIST key
*
* Return full list of items in Top K list.
*
* @param key The key of the filter
* @return list of items in the list.
*/
public List topkList(String key) {
return (new JedisClusterCommand>(this.connectionHandler, this.maxAttempts){
@Override
public List execute(Jedis jedis) {
Connection conn = jedis.getClient();
conn.sendCommand(TopKCommand.LIST, key);
return conn.getMultiBulkReply();
}
}).run(key);
}
@SafeVarargs
private final boolean[] sendMultiCommand(Connection conn, Command cmd, T name, T... value) {
ArrayList arr = new ArrayList<>();
arr.add(name);
arr.addAll(Arrays.asList(value));
List reps;
if (name instanceof String) {
conn.sendCommand(cmd, arr.toArray((String[]) value));
reps = conn.getIntegerMultiBulkReply();
} else {
conn.sendCommand(cmd, arr.toArray((byte[][]) value));
reps = conn.getIntegerMultiBulkReply();
}
boolean[] ret = new boolean[value.length];
for (int i = 0; i < reps.size(); i++) {
ret[i] = reps.get(i) != 0;
}
return ret;
}
}
