/**
* Copyright 2016 Nikita Koksharov
*
* Licensed 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 under the License.
*/
package org.redisson.client.protocol.decoder;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import org.redisson.client.handler.State;
import org.redisson.cluster.ClusterSlotRange;
import io.netty.buffer.ByteBuf;
import io.netty.util.CharsetUtil;
/**
*
* @author Nikita Koksharov
*
*/
public class SlotsDecoder implements MultiDecoder<Object> {
@Override
public Object decode(ByteBuf buf, State state) {
return buf.toString(CharsetUtil.UTF_8);
}
@Override
public Object decode(List<Object> parts, State state) {
if (parts.size() > 2 && parts.get(0) instanceof List) {
Map<ClusterSlotRange, Set<String>> result = new HashMap<ClusterSlotRange, Set<String>>();
List<List<Object>> rows = (List<List<Object>>)(Object)parts;
for (List<Object> row : rows) {
Iterator<Object> iterator = row.iterator();
Long startSlot = (Long)iterator.next();
Long endSlot = (Long)iterator.next();
ClusterSlotRange range = new ClusterSlotRange(startSlot.intValue(), endSlot.intValue());
Set<String> addresses = new HashSet<String>();
while(iterator.hasNext()) {
List<Object> addressParts = (List<Object>) iterator.next();
addresses.add(addressParts.get(0) + ":" + addressParts.get(1));
}
result.put(range, addresses);
}
return result;
}
return parts;
}
@Override
public boolean isApplicable(int paramNum, State state) {
return true;
}
}