/*
* 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.impl.client;
import com.hazelcast.client.impl.client.AllPartitionsClientRequest;
import com.hazelcast.map.impl.MapPortableHook;
import com.hazelcast.map.impl.MapService;
import com.hazelcast.map.impl.operation.IsEmptyOperationFactory;
import com.hazelcast.nio.serialization.PortableReader;
import com.hazelcast.nio.serialization.PortableWriter;
import com.hazelcast.security.permission.ActionConstants;
import com.hazelcast.security.permission.MapPermission;
import com.hazelcast.spi.OperationFactory;
import java.io.IOException;
import java.security.Permission;
import java.util.Map;
public class MapIsEmptyRequest extends AllPartitionsClientRequest {
private String name;
public MapIsEmptyRequest() {
}
public MapIsEmptyRequest(String name) {
this.name = name;
}
public String getServiceName() {
return MapService.SERVICE_NAME;
}
@Override
public int getFactoryId() {
return MapPortableHook.F_ID;
}
public int getClassId() {
return MapPortableHook.IS_EMPTY;
}
public void write(PortableWriter writer) throws IOException {
writer.writeUTF("n", name);
}
public void read(PortableReader reader) throws IOException {
name = reader.readUTF("n");
}
@Override
protected OperationFactory createOperationFactory() {
return new IsEmptyOperationFactory(name);
}
@Override
protected Object reduce(Map<Integer, Object> map) {
MapService mapService = getService();
for (Object result : map.values()) {
boolean isEmpty = (Boolean) mapService.getMapServiceContext().toObject(result);
if (!isEmpty) {
return false;
}
}
return true;
}
public Permission getRequiredPermission() {
return new MapPermission(name, ActionConstants.ACTION_READ);
}
@Override
public String getDistributedObjectName() {
return name;
}
@Override
public String getMethodName() {
return "isEmpty";
}
}