/*
 * Copyright 2009-2010 by The Regents of the University of California
 * 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 from
 * 
 *     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 edu.uci.ics.pregelix.dataflow.std;

import edu.uci.ics.hyracks.api.context.IHyracksTaskContext;
import edu.uci.ics.hyracks.api.dataflow.IOperatorNodePushable;
import edu.uci.ics.hyracks.api.dataflow.value.IBinaryComparatorFactory;
import edu.uci.ics.hyracks.api.dataflow.value.INullWriter;
import edu.uci.ics.hyracks.api.dataflow.value.INullWriterFactory;
import edu.uci.ics.hyracks.api.dataflow.value.IRecordDescriptorProvider;
import edu.uci.ics.hyracks.api.dataflow.value.ITypeTraits;
import edu.uci.ics.hyracks.api.dataflow.value.RecordDescriptor;
import edu.uci.ics.hyracks.api.job.JobSpecification;
import edu.uci.ics.hyracks.dataflow.std.file.IFileSplitProvider;
import edu.uci.ics.hyracks.storage.am.common.api.IIndexLifecycleManagerProvider;
import edu.uci.ics.hyracks.storage.am.common.api.ITreeIndexFrameFactory;
import edu.uci.ics.hyracks.storage.am.common.dataflow.AbstractTreeIndexOperatorDescriptor;
import edu.uci.ics.hyracks.storage.am.common.dataflow.IIndexDataflowHelperFactory;
import edu.uci.ics.hyracks.storage.am.common.impls.NoOpOperationCallbackFactory;
import edu.uci.ics.hyracks.storage.common.IStorageManagerInterface;
import edu.uci.ics.hyracks.storage.common.file.TransientLocalResourceFactoryProvider;
import edu.uci.ics.pregelix.dataflow.std.base.IRecordDescriptorFactory;
import edu.uci.ics.pregelix.dataflow.std.base.IRuntimeHookFactory;
import edu.uci.ics.pregelix.dataflow.std.base.IUpdateFunctionFactory;

public class IndexNestedLoopJoinFunctionUpdateOperatorDescriptor extends AbstractTreeIndexOperatorDescriptor {
    private static final long serialVersionUID = 1L;

    private boolean isForward;
    private int[] lowKeyFields; // fields in input tuple to be used as low keys
    private int[] highKeyFields; // fields in input tuple to be used as high
    // keys
    private boolean lowKeyInclusive;
    private boolean highKeyInclusive;

    // right outer join
    private boolean isRightOuter = false;
    private INullWriterFactory[] nullWriterFactories;

    // set union
    private boolean isSetUnion = false;

    private final IUpdateFunctionFactory functionFactory;
    private final IRuntimeHookFactory preHookFactory;
    private final IRuntimeHookFactory postHookFactory;
    private final IRecordDescriptorFactory inputRdFactory;

    private final int outputArity;

    public IndexNestedLoopJoinFunctionUpdateOperatorDescriptor(JobSpecification spec,
            IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lcManagerProvider,
            IFileSplitProvider fileSplitProvider, ITypeTraits[] typeTraits,
            IBinaryComparatorFactory[] comparatorFactories, boolean isForward, int[] lowKeyFields, int[] highKeyFields,
            boolean lowKeyInclusive, boolean highKeyInclusive, IIndexDataflowHelperFactory opHelperFactory,
            IRecordDescriptorFactory inputRdFactory, int outputArity, IUpdateFunctionFactory functionFactory,
            IRuntimeHookFactory preHookFactory, IRuntimeHookFactory postHookFactory, RecordDescriptor... rDescs) {
        super(spec, 1, outputArity, rDescs[0], storageManager, lcManagerProvider, fileSplitProvider, typeTraits,
                comparatorFactories, highKeyFields, opHelperFactory, null, false,
                new TransientLocalResourceFactoryProvider(), NoOpOperationCallbackFactory.INSTANCE,
                NoOpOperationCallbackFactory.INSTANCE);
        this.isForward = isForward;
        this.lowKeyFields = lowKeyFields;
        this.highKeyFields = highKeyFields;
        this.lowKeyInclusive = lowKeyInclusive;
        this.highKeyInclusive = highKeyInclusive;

        this.functionFactory = functionFactory;
        this.preHookFactory = preHookFactory;
        this.postHookFactory = postHookFactory;
        this.inputRdFactory = inputRdFactory;

        for (int i = 0; i < rDescs.length; i++) {
            this.recordDescriptors[i] = rDescs[i];
        }

        this.outputArity = outputArity;
    }

    public IndexNestedLoopJoinFunctionUpdateOperatorDescriptor(JobSpecification spec,
            IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lcManagerProvider,
            IFileSplitProvider fileSplitProvider, ITreeIndexFrameFactory interiorFrameFactory,
            ITreeIndexFrameFactory leafFrameFactory, ITypeTraits[] typeTraits,
            IBinaryComparatorFactory[] comparatorFactories, boolean isForward, int[] lowKeyFields, int[] highKeyFields,
            boolean lowKeyInclusive, boolean highKeyInclusive, IIndexDataflowHelperFactory opHelperFactory,
            boolean isRightOuter, INullWriterFactory[] nullWriterFactories, IRecordDescriptorFactory inputRdFactory,
            int outputArity, IUpdateFunctionFactory functionFactory, IRuntimeHookFactory preHookFactory,
            IRuntimeHookFactory postHookFactory, RecordDescriptor... rDescs) {
        super(spec, 1, outputArity, rDescs[0], storageManager, lcManagerProvider, fileSplitProvider, typeTraits,
                comparatorFactories, highKeyFields, opHelperFactory, null, false,
                new TransientLocalResourceFactoryProvider(), NoOpOperationCallbackFactory.INSTANCE,
                NoOpOperationCallbackFactory.INSTANCE);
        this.isForward = isForward;
        this.lowKeyFields = lowKeyFields;
        this.highKeyFields = highKeyFields;
        this.lowKeyInclusive = lowKeyInclusive;
        this.highKeyInclusive = highKeyInclusive;

        this.isRightOuter = isRightOuter;
        this.nullWriterFactories = nullWriterFactories;

        this.functionFactory = functionFactory;
        this.preHookFactory = preHookFactory;
        this.postHookFactory = postHookFactory;
        this.inputRdFactory = inputRdFactory;

        for (int i = 0; i < rDescs.length; i++) {
            this.recordDescriptors[i] = rDescs[i];
        }

        this.outputArity = outputArity;
    }

    public IndexNestedLoopJoinFunctionUpdateOperatorDescriptor(JobSpecification spec,
            IStorageManagerInterface storageManager, IIndexLifecycleManagerProvider lcManagerProvider,
            IFileSplitProvider fileSplitProvider, ITreeIndexFrameFactory interiorFrameFactory,
            ITreeIndexFrameFactory leafFrameFactory, ITypeTraits[] typeTraits,
            IBinaryComparatorFactory[] comparatorFactories, boolean isForward, int[] lowKeyFields, int[] highKeyFields,
            boolean lowKeyInclusive, boolean highKeyInclusive, IIndexDataflowHelperFactory opHelperFactory,
            boolean isSetUnion, IRecordDescriptorFactory inputRdFactory, int outputArity,
            IUpdateFunctionFactory functionFactory, IRuntimeHookFactory preHookFactory,
            IRuntimeHookFactory postHookFactory, RecordDescriptor... rDescs) {
        super(spec, 1, outputArity, rDescs[0], storageManager, lcManagerProvider, fileSplitProvider, typeTraits,
                comparatorFactories, highKeyFields, opHelperFactory, null, false,
                new TransientLocalResourceFactoryProvider(), NoOpOperationCallbackFactory.INSTANCE,
                NoOpOperationCallbackFactory.INSTANCE);
        this.isForward = isForward;
        this.lowKeyFields = lowKeyFields;
        this.highKeyFields = highKeyFields;
        this.lowKeyInclusive = lowKeyInclusive;
        this.highKeyInclusive = highKeyInclusive;

        this.isSetUnion = isSetUnion;

        this.functionFactory = functionFactory;
        this.preHookFactory = preHookFactory;
        this.postHookFactory = postHookFactory;
        this.inputRdFactory = inputRdFactory;

        for (int i = 0; i < rDescs.length; i++) {
            this.recordDescriptors[i] = rDescs[i];
        }

        this.outputArity = outputArity;
    }

    @Override
    public IOperatorNodePushable createPushRuntime(final IHyracksTaskContext ctx,
            IRecordDescriptorProvider recordDescProvider, int partition, int nPartitions) {
        if (isRightOuter) {
            INullWriter[] nullWriters = new INullWriter[nullWriterFactories.length];
            for (int i = 0; i < nullWriters.length; i++)
                nullWriters[i] = nullWriterFactories[i].createNullWriter();
            return new IndexNestedLoopRightOuterJoinFunctionUpdateOperatorNodePushable(this, ctx, partition,
                    recordDescProvider, isForward, lowKeyFields, highKeyFields, nullWriters, functionFactory,
                    preHookFactory, postHookFactory, inputRdFactory, outputArity);
        } else if (isSetUnion) {
            return new IndexNestedLoopSetUnionFunctionUpdateOperatorNodePushable(this, ctx, partition,
                    recordDescProvider, isForward, lowKeyFields, highKeyFields, functionFactory, preHookFactory,
                    postHookFactory, inputRdFactory, outputArity);
        } else {
            return new IndexNestedLoopJoinFunctionUpdateOperatorNodePushable(this, ctx, partition, recordDescProvider,
                    isForward, lowKeyFields, highKeyFields, lowKeyInclusive, highKeyInclusive, functionFactory,
                    preHookFactory, postHookFactory, inputRdFactory, outputArity);
        }
    }
}