Package com.hazelcast.multimap.txn

Source Code of com.hazelcast.multimap.txn.TxnRemoveAllBackupOperation

/*
* 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.multimap.txn;

import com.hazelcast.multimap.MultiMapContainer;
import com.hazelcast.multimap.MultiMapDataSerializerHook;
import com.hazelcast.multimap.MultiMapRecord;
import com.hazelcast.multimap.MultiMapWrapper;
import com.hazelcast.multimap.operations.MultiMapKeyBasedOperation;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.Data;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

/**
* @ali 10/18/13
*/
public class TxnRemoveAllBackupOperation extends MultiMapKeyBasedOperation {

    Collection<Long> recordIds;

    public TxnRemoveAllBackupOperation() {
    }

    public TxnRemoveAllBackupOperation(String name, Data dataKey, Collection<Long> recordIds) {
        super(name, dataKey);
        this.recordIds = recordIds;
    }

    public void run() throws Exception {
        MultiMapContainer container = getOrCreateContainer();
        MultiMapWrapper wrapper = container.getOrCreateMultiMapWrapper(dataKey);
        response = true;
        for (Long recordId: recordIds){
            if(!wrapper.containsRecordId(recordId)){
                response = false;
                return;
            }
        }
        Collection<MultiMapRecord> coll = wrapper.getCollection(false);
        for (Long recordId: recordIds){
            Iterator<MultiMapRecord> iter = coll.iterator();
            while (iter.hasNext()){
                MultiMapRecord record = iter.next();
                if (record.getRecordId() == recordId){
                    iter.remove();
                    break;
                }
            }
        }
        if (coll.isEmpty()) {
            delete();
        }
    }

    protected void writeInternal(ObjectDataOutput out) throws IOException {
        super.writeInternal(out);
        out.writeInt(recordIds.size());
        for (Long recordId: recordIds){
            out.writeLong(recordId);
        }
    }

    protected void readInternal(ObjectDataInput in) throws IOException {
        super.readInternal(in);
        int size = in.readInt();
        recordIds = new ArrayList<Long>();
        for (int i=0; i<size; i++){
            recordIds.add(in.readLong());
        }
    }

    public int getId() {
        return MultiMapDataSerializerHook.TXN_REMOVE_ALL_BACKUP;
    }
}
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