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Use the same protobuf for both requests and log entries
We are now _really_ using the command-log pattern!
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,62 +1,49 @@ | ||
| package com.cloudata.keyvalue.operation; | ||
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| import java.nio.ByteBuffer; | ||
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| import com.cloudata.keyvalue.KeyValueLog.KvAction; | ||
| import com.cloudata.keyvalue.KeyValueLog.KvEntry; | ||
| import com.cloudata.btree.Keyspace; | ||
| import com.cloudata.keyvalue.KeyValueProtocol.ActionType; | ||
| import com.cloudata.keyvalue.KeyValueProtocol.KeyValueAction; | ||
| import com.cloudata.keyvalue.KeyValueProtocol.ResponseEntry; | ||
| import com.cloudata.values.Value; | ||
| import com.google.common.base.Preconditions; | ||
| import com.google.protobuf.ByteString; | ||
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| public class AppendOperation implements KeyOperation<Integer> { | ||
| public class AppendOperation extends KeyValueOperationBase { | ||
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| private int newLength; | ||
| final KvEntry entry; | ||
| public AppendOperation(KeyValueAction entry) { | ||
| super(entry); | ||
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| public AppendOperation(KvEntry entry) { | ||
| Preconditions.checkState(entry.getAction() == KvAction.APPEND); | ||
| Preconditions.checkState(entry.getAction() == ActionType.APPEND); | ||
| Preconditions.checkState(!entry.getIfNotExists()); | ||
| Preconditions.checkState(!entry.hasIfValue()); | ||
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| this.entry = entry; | ||
| } | ||
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| @Override | ||
| public Value doAction(Value oldValue) { | ||
| Value appendValue = Value.deserialize(entry.getValue().asReadOnlyByteBuffer()); | ||
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| ResponseEntry.Builder eb = response.addEntryBuilder(); | ||
| eb.setKey(entry.getKey()); | ||
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| Value newValue; | ||
| if (oldValue == null) { | ||
| this.newLength = entry.getValue().size(); | ||
| return appendValue; | ||
| newValue = appendValue; | ||
| } else { | ||
| Value appended = oldValue.concat(appendValue.asBytes()); | ||
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| this.newLength = appended.sizeAsBytes(); | ||
| return appended; | ||
| newValue = oldValue.concat(appendValue.asBytes()); | ||
| } | ||
| } | ||
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| @Override | ||
| public KvEntry serialize() { | ||
| return entry; | ||
| } | ||
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| @Override | ||
| public Integer getResult() { | ||
| return newLength; | ||
| } | ||
| eb.setValue(ByteString.copyFrom(newValue.asBytes())); | ||
| eb.setChanged(true); | ||
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| @Override | ||
| public ByteBuffer getKey() { | ||
| return entry.getKey().asReadOnlyByteBuffer(); | ||
| return newValue; | ||
| } | ||
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| public static AppendOperation build(long storeId, ByteString qualifiedKey, Value value) { | ||
| KvEntry.Builder b = KvEntry.newBuilder(); | ||
| b.setAction(KvAction.APPEND); | ||
| public static AppendOperation build(long storeId, Keyspace keyspace, ByteString key, Value value) { | ||
| KeyValueAction.Builder b = KeyValueAction.newBuilder(); | ||
| b.setAction(ActionType.APPEND); | ||
| b.setStoreId(storeId); | ||
| b.setKey(qualifiedKey); | ||
| b.setValue(ByteString.copyFrom(value.serialize())); | ||
| b.setKeyspaceId(keyspace.getKeyspaceId()); | ||
| b.setKey(key); | ||
| b.setValue(ByteString.copyFrom(value.asBytes())); | ||
| return new AppendOperation(b.build()); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| package com.cloudata.keyvalue.operation; | ||
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| import com.cloudata.btree.Btree; | ||
| import com.cloudata.btree.Transaction; | ||
| import com.cloudata.btree.operation.ComplexOperation; | ||
| import com.cloudata.keyvalue.KeyValueProtocol.ActionResponse; | ||
| import com.cloudata.keyvalue.KeyValueProtocol.ActionType; | ||
| import com.cloudata.keyvalue.KeyValueProtocol.KeyValueAction; | ||
| import com.google.common.base.Preconditions; | ||
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| public class CompoundOperation implements KeyValueOperation, ComplexOperation<ActionResponse> { | ||
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| private final KeyValueAction entry; | ||
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| final ActionResponse.Builder response = ActionResponse.newBuilder(); | ||
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| public CompoundOperation(KeyValueAction entry) { | ||
| Preconditions.checkState(entry.getAction() == ActionType.COMPOUND); | ||
| Preconditions.checkArgument(entry.hasStoreId()); | ||
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| this.entry = entry; | ||
| } | ||
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| @Override | ||
| public KeyValueAction serialize() { | ||
| return entry; | ||
| } | ||
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| @Override | ||
| public ActionResponse getResult() { | ||
| return response.build(); | ||
| } | ||
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| @Override | ||
| public void doAction(Btree btree, Transaction txn) { | ||
| for (KeyValueAction child : entry.getChildrenList()) { | ||
| if (child.getStoreId() != entry.getStoreId()) { | ||
| throw new IllegalArgumentException(); | ||
| } | ||
| KeyValueOperation op = KeyValueOperations.build(child); | ||
| txn.doAction(btree, op); | ||
| response.addChildren(op.getResult()); | ||
| } | ||
| } | ||
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| @Override | ||
| public boolean isReadOnly() { | ||
| return KeyValueOperations.isReadOnly(entry); | ||
| } | ||
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| @Override | ||
| public long getStoreId() { | ||
| return entry.getStoreId(); | ||
| } | ||
|
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| } |
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