| package com.gemstone.gemfire.internal.redis.executor.string; |
| |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import com.gemstone.gemfire.cache.Region; |
| import com.gemstone.gemfire.internal.redis.ByteArrayWrapper; |
| import com.gemstone.gemfire.internal.redis.Command; |
| import com.gemstone.gemfire.internal.redis.ExecutionHandlerContext; |
| import com.gemstone.gemfire.internal.redis.RedisConstants.ArityDef; |
| import com.gemstone.gemfire.internal.redis.RedisDataTypeMismatchException; |
| import com.gemstone.gemfire.internal.redis.Coder; |
| |
| public class MSetNXExecutor extends StringExecutor { |
| |
| private final int SET = 1; |
| |
| private final int NOT_SET = 0; |
| |
| @Override |
| public void executeCommand(Command command, ExecutionHandlerContext context) { |
| List<byte[]> commandElems = command.getProcessedCommand(); |
| |
| Region<ByteArrayWrapper, ByteArrayWrapper> r = context.getRegionCache().getStringsRegion(); |
| |
| if (commandElems.size() < 3 || commandElems.size() % 2 == 0) { |
| command.setResponse(Coder.getErrorResponse(context.getByteBufAllocator(), ArityDef.MSETNX)); |
| return; |
| } |
| |
| boolean hasEntry = false; |
| |
| Map<ByteArrayWrapper, ByteArrayWrapper> map = new HashMap<ByteArrayWrapper, ByteArrayWrapper>(); |
| for (int i = 1; i < commandElems.size(); i += 2) { |
| byte[] keyArray = commandElems.get(i); |
| ByteArrayWrapper key = new ByteArrayWrapper(keyArray); |
| try { |
| checkDataType(key, context); |
| } catch (RedisDataTypeMismatchException e) { |
| hasEntry = true; |
| break; |
| } |
| byte[] value = commandElems.get(i + 1); |
| map.put(key, new ByteArrayWrapper(value)); |
| if (r.containsKey(key)) { |
| hasEntry = true; |
| break; |
| } |
| } |
| boolean successful = false; |
| if (!hasEntry) { |
| successful = true; |
| for (ByteArrayWrapper k : map.keySet()) { |
| try { |
| checkAndSetDataType(k, context); |
| } catch (RedisDataTypeMismatchException e) { |
| successful = false; |
| break; |
| } |
| } |
| r.putAll(map); |
| } |
| if (successful) { |
| command.setResponse(Coder.getIntegerResponse(context.getByteBufAllocator(), SET)); |
| } else { |
| command.setResponse(Coder.getIntegerResponse(context.getByteBufAllocator(), NOT_SET)); |
| } |
| |
| } |
| |
| } |