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/*
* Copyright (c) 2008-2018, 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.map.impl.operation;
import com.hazelcast.core.EntryEventType;
import com.hazelcast.core.EntryView;
import com.hazelcast.map.impl.EntryViews;
import com.hazelcast.map.impl.MapDataSerializerHook;
import com.hazelcast.map.impl.event.MapEventPublisher;
import com.hazelcast.map.impl.record.Record;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;
import com.hazelcast.spi.BackupAwareOperation;
import com.hazelcast.spi.Operation;
import com.hazelcast.spi.PartitionAwareOperation;
import com.hazelcast.spi.impl.MutatingOperation;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import static com.hazelcast.util.CollectionUtil.isEmpty;
import static com.hazelcast.util.Preconditions.checkFalse;
import static com.hazelcast.util.Preconditions.checkNotNull;
/**
* Puts records to map which are loaded from map store by {@link com.hazelcast.core.IMap#loadAll}
*/
public class PutFromLoadAllOperation extends MapOperation implements PartitionAwareOperation, MutatingOperation,
BackupAwareOperation {
private List keyValueSequence;
private List invalidationKeys;
public PutFromLoadAllOperation() {
keyValueSequence = Collections.emptyList();
}
public PutFromLoadAllOperation(String name, List keyValueSequence) {
super(name);
checkFalse(isEmpty(keyValueSequence), "key-value sequence cannot be empty or null");
this.keyValueSequence = keyValueSequence;
}
@Override
public void run() throws Exception {
boolean hasInterceptor = mapServiceContext.hasInterceptor(name);
List keyValueSequence = this.keyValueSequence;
for (int i = 0; i < keyValueSequence.size(); i += 2) {
Data key = keyValueSequence.get(i);
Data dataValue = keyValueSequence.get(i + 1);
checkNotNull(key, "Key loaded by a MapLoader cannot be null.");
// here object conversion is for interceptors.
Object value = hasInterceptor ? mapServiceContext.toObject(dataValue) : dataValue;
Object previousValue = recordStore.putFromLoad(key, value);
// the following check is for the case when the putFromLoad does not put the data due to various reasons
// one of the reasons may be size eviction threshold has been reached
if (value != null && !recordStore.existInMemory(key)) {
continue;
}
// do not run interceptors in case the put was skipped due to null value
if (value != null) {
callAfterPutInterceptors(value);
}
Record record = recordStore.getRecord(key);
if (isPostProcessing(recordStore)) {
checkNotNull(record, "Value loaded by a MapLoader cannot be null.");
value = record.getValue();
}
publishEntryEvent(key, previousValue, value);
publishWanReplicationEvent(key, value, record);
addInvalidation(key);
}
}
private void addInvalidation(Data key) {
if (!mapContainer.hasInvalidationListener()) {
return;
}
if (invalidationKeys == null) {
invalidationKeys = new ArrayList(keyValueSequence.size() / 2);
}
invalidationKeys.add(key);
}
private void callAfterPutInterceptors(Object value) {
mapService.getMapServiceContext().interceptAfterPut(name, value);
}
private void publishEntryEvent(Data key, Object previousValue, Object newValue) {
final EntryEventType eventType = previousValue == null ? EntryEventType.ADDED : EntryEventType.UPDATED;
mapEventPublisher.publishEvent(getCallerAddress(), name, eventType, key, previousValue, newValue);
}
private void publishWanReplicationEvent(Data key, Object value, Record record) {
if (record == null || !mapContainer.isWanReplicationEnabled()) {
return;
}
MapEventPublisher mapEventPublisher = mapServiceContext.getMapEventPublisher();
value = mapServiceContext.toData(value);
EntryView entryView = EntryViews.createSimpleEntryView(key, value, record);
mapEventPublisher.publishWanReplicationUpdate(name, entryView);
}
@Override
public void afterRun() throws Exception {
invalidateNearCache(invalidationKeys);
evict(null);
super.afterRun();
}
@Override
public Object getResponse() {
return true;
}
@Override
public boolean shouldBackup() {
return !keyValueSequence.isEmpty();
}
@Override
public final int getAsyncBackupCount() {
return mapContainer.getAsyncBackupCount();
}
@Override
public final int getSyncBackupCount() {
return mapContainer.getBackupCount();
}
@Override
public Operation getBackupOperation() {
return new PutFromLoadAllBackupOperation(name, keyValueSequence);
}
@Override
protected void writeInternal(ObjectDataOutput out) throws IOException {
super.writeInternal(out);
final List keyValueSequence = this.keyValueSequence;
final int size = keyValueSequence.size();
out.writeInt(size);
for (Data data : keyValueSequence) {
out.writeData(data);
}
}
@Override
protected void readInternal(ObjectDataInput in) throws IOException {
super.readInternal(in);
final int size = in.readInt();
if (size < 1) {
keyValueSequence = Collections.emptyList();
} else {
final List tmpKeyValueSequence = new ArrayList(size);
for (int i = 0; i < size; i++) {
final Data data = in.readData();
tmpKeyValueSequence.add(data);
}
keyValueSequence = tmpKeyValueSequence;
}
}
@Override
public int getId() {
return MapDataSerializerHook.PUT_FROM_LOAD_ALL;
}
}
