com.linkedin.pinot.common.metadata.segment.IndexLoadingConfigMetadata.java Source code

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Here is the source code for com.linkedin.pinot.common.metadata.segment.IndexLoadingConfigMetadata.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.common.metadata.segment;

import com.linkedin.pinot.common.utils.CommonConstants;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import org.apache.commons.configuration.Configuration;

/**
 * This is resource level index loading configs.
 *
 */
public class IndexLoadingConfigMetadata {

    public static final String KEY_OF_LOADING_INVERTED_INDEX = "metadata.loading.inverted.index.columns";
    public static final String KEY_OF_SEGMENT_FORMAT_VERSION = "segment.format.version";
    public static final String KEY_OF_ENABLE_DEFAULT_COLUMNS = "enable.default.columns";
    public static final String KEY_OF_STAR_TREE_FORMAT_VERSION = "startree.format.version";

    private final Set<String> _loadingInvertedIndexColumnSet = new HashSet<String>();
    private final String DEFAULT_SEGMENT_FORMAT = "v1";
    private String segmentVersionToLoad;
    private boolean enableDefaultColumns;
    private final String starTreeVersionToLoad;

    public IndexLoadingConfigMetadata(Configuration tableDataManagerConfig) {
        List<String> valueOfLoadingInvertedIndexConfig = tableDataManagerConfig
                .getList(KEY_OF_LOADING_INVERTED_INDEX, null);
        if ((valueOfLoadingInvertedIndexConfig != null) && (!valueOfLoadingInvertedIndexConfig.isEmpty())) {
            initLoadingInvertedIndexColumnSet(valueOfLoadingInvertedIndexConfig.toArray(new String[0]));
        }

        segmentVersionToLoad = tableDataManagerConfig.getString(KEY_OF_SEGMENT_FORMAT_VERSION,
                DEFAULT_SEGMENT_FORMAT);
        enableDefaultColumns = tableDataManagerConfig.getBoolean(KEY_OF_ENABLE_DEFAULT_COLUMNS, false);
        starTreeVersionToLoad = tableDataManagerConfig.getString(KEY_OF_STAR_TREE_FORMAT_VERSION,
                CommonConstants.Server.DEFAULT_STAR_TREE_FORMAT_VERSION);
    }

    public void initLoadingInvertedIndexColumnSet(String[] columnCollections) {
        _loadingInvertedIndexColumnSet.addAll(Arrays.asList(columnCollections));
    }

    public Set<String> getLoadingInvertedIndexColumns() {
        return _loadingInvertedIndexColumnSet;
    }

    public boolean isLoadingInvertedIndexForColumn(String columnName) {
        return _loadingInvertedIndexColumnSet.contains(columnName);
    }

    public String segmentVersionToLoad() {
        return segmentVersionToLoad;
    }

    public static String getKeyOfLoadingInvertedIndex() {
        return KEY_OF_LOADING_INVERTED_INDEX;
    }

    public void setEnableDefaultColumns(boolean enableDefaultColumns) {
        this.enableDefaultColumns = enableDefaultColumns;
    }

    public boolean isEnableDefaultColumns() {
        return enableDefaultColumns;
    }

    public String getStarTreeVersionToLoad() {
        return starTreeVersionToLoad;
    }
}