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ISPN-14907 Implement RESP "cluster shards" command
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49 changes: 49 additions & 0 deletions
49
server/resp/src/main/java/org/infinispan/server/resp/commands/FamilyCommand.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| package org.infinispan.server.resp.commands; | ||
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| import java.util.List; | ||
| import java.util.concurrent.CompletionStage; | ||
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| import org.infinispan.server.resp.ByteBufferUtils; | ||
| import org.infinispan.server.resp.Resp3Handler; | ||
| import org.infinispan.server.resp.RespCommand; | ||
| import org.infinispan.server.resp.RespRequestHandler; | ||
| import org.infinispan.server.resp.commands.cluster.CLUSTER; | ||
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| import io.netty.channel.ChannelHandlerContext; | ||
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| /** | ||
| * An umbrella command. | ||
| * <p> | ||
| * This command represents a family of commands. Usually, the ones with multiple keywords, for example, | ||
| * {@link CLUSTER} or ACL. | ||
| * | ||
| * @since 15.0 | ||
| */ | ||
| public abstract class FamilyCommand extends RespCommand implements Resp3Command { | ||
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| public FamilyCommand(int arity, int firstKeyPos, int lastKeyPos, int steps) { | ||
| super(arity, firstKeyPos, lastKeyPos, steps); | ||
| } | ||
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| @Override | ||
| public CompletionStage<RespRequestHandler> perform(Resp3Handler handler, ChannelHandlerContext ctx, List<byte[]> arguments) { | ||
| byte[] subCommand = arguments.get(0); | ||
| for (RespCommand cmd : getFamilyCommands()) { | ||
| if (cmd.match(subCommand)) { | ||
| if (cmd instanceof Resp3Command) { | ||
| return ((Resp3Command) cmd).perform(handler, ctx, arguments); | ||
| } | ||
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| if (cmd instanceof AuthResp3Command) { | ||
| return ((AuthResp3Command) cmd).perform(handler, ctx, arguments); | ||
| } | ||
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| break; | ||
| } | ||
| } | ||
| ByteBufferUtils.stringToByteBuf("-ERR unknown command\r\n", handler.allocatorToUse()); | ||
| return handler.myStage(); | ||
| } | ||
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| public abstract RespCommand[] getFamilyCommands(); | ||
| } |
41 changes: 41 additions & 0 deletions
41
server/resp/src/main/java/org/infinispan/server/resp/commands/cluster/CLUSTER.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,41 @@ | ||
| package org.infinispan.server.resp.commands.cluster; | ||
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| import java.util.List; | ||
| import java.util.concurrent.CompletionStage; | ||
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| import org.infinispan.server.resp.Resp3Handler; | ||
| import org.infinispan.server.resp.RespCommand; | ||
| import org.infinispan.server.resp.RespErrorUtil; | ||
| import org.infinispan.server.resp.RespRequestHandler; | ||
| import org.infinispan.server.resp.commands.FamilyCommand; | ||
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| import io.netty.channel.ChannelHandlerContext; | ||
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| public class CLUSTER extends FamilyCommand { | ||
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| private static final RespCommand[] CLUSTER_COMMANDS; | ||
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| static { | ||
| CLUSTER_COMMANDS = new RespCommand[] { | ||
| new SHARDS() | ||
| }; | ||
| } | ||
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| public CLUSTER() { | ||
| super(-2, 0, 0, 0); | ||
| } | ||
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| @Override | ||
| public CompletionStage<RespRequestHandler> perform(Resp3Handler handler, ChannelHandlerContext ctx, List<byte[]> arguments) { | ||
| if (arguments.isEmpty()) { | ||
| RespErrorUtil.wrongArgumentNumber(this, handler.allocatorToUse()); | ||
| return handler.myStage(); | ||
| } | ||
| return super.perform(handler, ctx, arguments); | ||
| } | ||
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| @Override | ||
| public RespCommand[] getFamilyCommands() { | ||
| return CLUSTER_COMMANDS; | ||
| } | ||
| } |
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