diff --git a/redisson/src/main/java/org/redisson/connection/decoder/MapCacheGetAllDecoder.java b/redisson/src/main/java/org/redisson/connection/decoder/MapCacheGetAllDecoder.java new file mode 100644 index 000000000..8bf4185c4 --- /dev/null +++ b/redisson/src/main/java/org/redisson/connection/decoder/MapCacheGetAllDecoder.java @@ -0,0 +1,83 @@ +/** + * 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.connection.decoder; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; + +import org.redisson.client.codec.LongCodec; +import org.redisson.client.handler.State; +import org.redisson.client.protocol.decoder.MultiDecoder; + +import io.netty.buffer.ByteBuf; + +/** + * + * @author Nikita Koksharov + * + */ +public class MapCacheGetAllDecoder implements MultiDecoder> { + + private final int shiftIndex; + private final List args; + private final boolean allowNulls; + + public MapCacheGetAllDecoder(List args, int shiftIndex) { + this(args, shiftIndex, false); + } + + public MapCacheGetAllDecoder(List args, int shiftIndex, boolean allowNulls) { + this.args = args; + this.shiftIndex = shiftIndex; + this.allowNulls = allowNulls; + } + + @Override + public Object decode(ByteBuf buf, State state) throws IOException { + return LongCodec.INSTANCE.getValueDecoder().decode(buf, state); + } + + @Override + public boolean isApplicable(int paramNum, State state) { + return false; + } + + @Override + public List decode(List parts, State state) { + if (parts.isEmpty()) { + return Collections.emptyList(); + } + + List result = new ArrayList(parts.size()*5); + for (int index = 0; index < parts.size(); index += 4) { + Object value = parts.get(index); + if (!allowNulls && value == null) { + continue; + } + + Object key = args.get(index/4+shiftIndex); + result.add(key); + result.add(value); + result.add(parts.get(index+1)); + result.add(parts.get(index+2)); + result.add(parts.get(index+3)); + } + return result; + } + +}