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org.infinispan.commands.functional.WriteOnlyManyEntriesCommand Maven / Gradle / Ivy

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package org.infinispan.commands.functional;

import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.Collection;
import java.util.Map;
import java.util.function.BiConsumer;

import org.infinispan.commands.CommandInvocationId;
import org.infinispan.commands.Visitor;
import org.infinispan.functional.EntryView.WriteEntryView;
import org.infinispan.container.entries.CacheEntry;
import org.infinispan.context.InvocationContext;
import org.infinispan.functional.impl.EntryViews;
import org.infinispan.functional.impl.Params;

public final class WriteOnlyManyEntriesCommand extends AbstractWriteManyCommand {

   public static final byte COMMAND_ID = 57;

   private Map entries;
   private BiConsumer> f;

   public WriteOnlyManyEntriesCommand(Map entries, BiConsumer> f, Params params, CommandInvocationId commandInvocationId) {
      super(commandInvocationId, params);
      this.entries = entries;
      this.f = f;
   }

   public WriteOnlyManyEntriesCommand(WriteOnlyManyEntriesCommand command) {
      super(command);
      this.entries = command.entries;
      this.f = command.f;
   }

   public WriteOnlyManyEntriesCommand() {
   }

   public Map getEntries() {
      return entries;
   }

   public void setEntries(Map entries) {
      this.entries = entries;
   }

   public final WriteOnlyManyEntriesCommand withEntries(Map entries) {
      setEntries(entries);
      return this;
   }

   @Override
   public byte getCommandId() {
      return COMMAND_ID;
   }

   @Override
   public void writeTo(ObjectOutput output) throws IOException {
      CommandInvocationId.writeTo(output, commandInvocationId);
      output.writeObject(entries);
      output.writeObject(f);
      output.writeBoolean(isForwarded);
      Params.writeObject(output, params);
      output.writeInt(topologyId);
      output.writeLong(flags);
   }

   @Override
   public void readFrom(ObjectInput input) throws IOException, ClassNotFoundException {
      commandInvocationId = CommandInvocationId.readFrom(input);
      entries = (Map) input.readObject();
      f = (BiConsumer>) input.readObject();
      isForwarded = input.readBoolean();
      params = Params.readObject(input);
      topologyId = input.readInt();
      flags = input.readLong();
   }

   @Override
   public Object perform(InvocationContext ctx) throws Throwable {
      for (Map.Entry entry : entries.entrySet()) {
         CacheEntry cacheEntry = ctx.lookupEntry(entry.getKey());

         // Could be that the key is not local, 'null' is how this is signalled
         if (cacheEntry == null) {
            throw new IllegalStateException();
         }
         f.accept(entry.getValue(), EntryViews.writeOnly(cacheEntry));
      }
      return null;
   }

   @Override
   public boolean isReturnValueExpected() {
      return false;
   }

   @Override
   public Collection getAffectedKeys() {
      return entries.keySet();
   }

   @Override
   public Object acceptVisitor(InvocationContext ctx, Visitor visitor) throws Throwable {
      return visitor.visitWriteOnlyManyEntriesCommand(ctx, this);
   }

   @Override
   public LoadType loadType() {
      return LoadType.DONT_LOAD;
   }

   @Override
   public boolean isWriteOnly() {
      return true;
   }

   @Override
   public String toString() {
      final StringBuilder sb = new StringBuilder("WriteOnlyManyEntriesCommand{");
      sb.append("entries=").append(entries);
      sb.append(", f=").append(f.getClass().getName());
      sb.append(", isForwarded=").append(isForwarded);
      sb.append('}');
      return sb.toString();
   }

   @Override
   public Collection getKeysToLock() {
      // TODO: fixup the generics
      return (Collection) entries.keySet();
   }

   @Override
   public Mutation toMutation(K key) {
      return new Mutations.WriteWithValue<>(entries.get(key), f);
   }
}