/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* 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 com.hazelcast.ringbuffer.impl.operations;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.ringbuffer.OverflowPolicy;
import com.hazelcast.ringbuffer.impl.RingbufferContainer;
import com.hazelcast.spi.BackupAwareOperation;
import com.hazelcast.spi.Notifier;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.WaitNotifyKey;
import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import java.io.IOException;
import static com.hazelcast.ringbuffer.OverflowPolicy.FAIL;
import static com.hazelcast.ringbuffer.impl.RingbufferDataSerializerHook.ADD_ALL_OPERATION;
/**
* Adds a batch of items to the ring buffer. The master node will add the items into the ring buffer, generating sequence IDs.
* The backup operation will put the items under the generated sequence IDs that the master generated. This is to avoid
* differences in ring buffer data structures.
*/
public class AddAllOperation extends AbstractRingBufferOperation
implements Notifier, BackupAwareOperation {
private OverflowPolicy overflowPolicy;
private Data[] items;
private long lastSequence;
public AddAllOperation() {
}
@SuppressFBWarnings("EI_EXPOSE_REP")
public AddAllOperation(String name, Data[] items, OverflowPolicy overflowPolicy) {
super(name);
this.items = items;
this.overflowPolicy = overflowPolicy;
}
@Override
public void run() throws Exception {
final RingbufferContainer ringbuffer = getRingBufferContainer();
if (overflowPolicy == FAIL) {
if (ringbuffer.remainingCapacity() < items.length) {
lastSequence = -1;
return;
}
}
lastSequence = ringbuffer.addAll(items);
}
@Override
public Object getResponse() {
return lastSequence;
}
@Override
public boolean shouldNotify() {
return lastSequence != -1;
}
@Override
public WaitNotifyKey getNotifiedKey() {
RingbufferContainer ringbuffer = getRingBufferContainer();
return ringbuffer.getRingEmptyWaitNotifyKey();
}
@Override
public boolean shouldBackup() {
return lastSequence != -1;
}
@Override
public int getSyncBackupCount() {
RingbufferContainer ringbuffer = getRingBufferContainer();
return ringbuffer.getConfig().getBackupCount();
}
@Override
public int getAsyncBackupCount() {
RingbufferContainer ringbuffer = getRingBufferContainer();
return ringbuffer.getConfig().getAsyncBackupCount();
}
@Override
public Operation getBackupOperation() {
return new AddAllBackupOperation(name, lastSequence, items);
}
@Override
public int getId() {
return ADD_ALL_OPERATION;
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
super.writeInternal(out);
out.writeInt(overflowPolicy.getId());
out.writeInt(items.length);
for (Data item : items) {
out.writeData(item);
}
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
super.readInternal(in);
overflowPolicy = OverflowPolicy.getById(in.readInt());
int length = in.readInt();
items = new Data[length];
for (int k = 0; k < items.length; k++) {
items[k] = in.readData();
}
}
}