com.linkedin.pinot.core.plan.DocIdSetPlanNode.java Source code

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Here is the source code for com.linkedin.pinot.core.plan.DocIdSetPlanNode.java

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/**
 * Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
 *
 * 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.linkedin.pinot.core.plan;

import com.google.common.base.Preconditions;
import com.linkedin.pinot.common.request.BrokerRequest;
import com.linkedin.pinot.core.indexsegment.IndexSegment;
import com.linkedin.pinot.core.operator.DocIdSetOperator;
import javax.annotation.Nonnull;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DocIdSetPlanNode implements PlanNode {
    public static int MAX_DOC_PER_CALL = 10000;

    private static final Logger LOGGER = LoggerFactory.getLogger(DocIdSetPlanNode.class);

    private final IndexSegment _indexSegment;
    private final FilterPlanNode _filterPlanNode;
    private final int _maxDocPerCall;

    public DocIdSetPlanNode(@Nonnull IndexSegment indexSegment, @Nonnull BrokerRequest brokerRequest,
            int maxDocPerCall) {
        Preconditions.checkState(maxDocPerCall <= MAX_DOC_PER_CALL);
        _indexSegment = indexSegment;
        _filterPlanNode = new FilterPlanNode(_indexSegment, brokerRequest);
        _maxDocPerCall = maxDocPerCall;
    }

    public DocIdSetPlanNode(@Nonnull IndexSegment indexSegment, @Nonnull BrokerRequest brokerRequest) {
        this(indexSegment, brokerRequest, MAX_DOC_PER_CALL);
    }

    @Override
    public DocIdSetOperator run() {
        return new DocIdSetOperator(_filterPlanNode.run(), _maxDocPerCall);
    }

    @Override
    public void showTree(String prefix) {
        LOGGER.debug(prefix + "DocIdSetPlanNode Plan Node :");
        LOGGER.debug(prefix + "Operator: DocIdSetOperator");
        LOGGER.debug(prefix + "Argument 0: IndexSegment - " + _indexSegment.getSegmentName());
        LOGGER.debug(prefix + "Argument 1: FilterPlanNode:");
        _filterPlanNode.showTree(prefix + "    ");
    }
}