/*
* Copyright (c) 2008-2013, 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.client;
import com.hazelcast.client.*;
import com.hazelcast.instance.MemberImpl;
import com.hazelcast.map.MapPortableHook;
import com.hazelcast.map.MapService;
import com.hazelcast.map.QueryResult;
import com.hazelcast.map.operation.QueryOperation;
import com.hazelcast.map.operation.QueryPartitionOperation;
import com.hazelcast.nio.serialization.Portable;
import com.hazelcast.nio.serialization.PortableReader;
import com.hazelcast.nio.serialization.PortableWriter;
import com.hazelcast.query.Predicate;
import com.hazelcast.security.permission.ActionConstants;
import com.hazelcast.security.permission.MapPermission;
import com.hazelcast.util.ExceptionUtil;
import com.hazelcast.util.IterationType;
import com.hazelcast.util.QueryResultSet;
import java.io.IOException;
import java.security.Permission;
import java.util.*;
import java.util.concurrent.Future;
import static com.hazelcast.map.MapService.SERVICE_NAME;
abstract class AbstractMapQueryRequest extends InvocationClientRequest implements Portable, RetryableRequest, SecureRequest {
private String name;
private IterationType iterationType;
public AbstractMapQueryRequest() {
}
public AbstractMapQueryRequest(String name, IterationType iterationType) {
this.name = name;
this.iterationType = iterationType;
}
@Override
protected final void invoke() {
Collection<MemberImpl> members = getClientEngine().getClusterService().getMemberList();
int partitionCount = getClientEngine().getPartitionService().getPartitionCount();
Set<Integer> plist = new HashSet<Integer>(partitionCount);
final ClientEndpoint endpoint = getEndpoint();
QueryResultSet result = new QueryResultSet(null, iterationType, true);
try {
List<Future> flist = new ArrayList<Future>();
final Predicate predicate = getPredicate();
for (MemberImpl member : members) {
Future future = createInvocationBuilder(SERVICE_NAME, new QueryOperation(name, predicate), member.getAddress()).invoke();
flist.add(future);
}
for (Future future : flist) {
QueryResult queryResult = (QueryResult) future.get();
if (queryResult != null) {
final List<Integer> partitionIds = queryResult.getPartitionIds();
if (partitionIds != null) {
plist.addAll(partitionIds);
result.addAll(queryResult.getResult());
}
}
}
if (plist.size() != partitionCount) {
List<Integer> missingList = new ArrayList<Integer>();
for (int i = 0; i < partitionCount; i++) {
if (!plist.contains(i)) {
missingList.add(i);
}
}
List<Future> futures = new ArrayList<Future>(missingList.size());
for (Integer pid : missingList) {
QueryPartitionOperation queryPartitionOperation = new QueryPartitionOperation(name, predicate);
queryPartitionOperation.setPartitionId(pid);
try {
Future f = createInvocationBuilder(SERVICE_NAME, queryPartitionOperation, pid).invoke();
futures.add(f);
} catch (Throwable t) {
throw ExceptionUtil.rethrow(t);
}
}
for (Future future : futures) {
QueryResult queryResult = (QueryResult) future.get();
result.addAll(queryResult.getResult());
}
}
} catch (Throwable t) {
throw ExceptionUtil.rethrow(t);
}
endpoint.sendResponse(result, getCallId());
}
protected abstract Predicate getPredicate();
public final String getServiceName() {
return MapService.SERVICE_NAME;
}
public final int getFactoryId() {
return MapPortableHook.F_ID;
}
public void write(PortableWriter writer) throws IOException {
writer.writeUTF("n", name);
writer.writeUTF("t", iterationType.toString());
writePortableInner(writer);
}
protected abstract void writePortableInner(PortableWriter writer) throws IOException;
public void read(PortableReader reader) throws IOException {
name = reader.readUTF("n");
iterationType = IterationType.valueOf(reader.readUTF("t"));
readPortableInner(reader);
}
protected abstract void readPortableInner(PortableReader reader) throws IOException;
public Permission getRequiredPermission() {
return new MapPermission(name, ActionConstants.ACTION_READ);
}
}