package com.thinkbiganalytics.util;

/*-
 * #%L
 * thinkbig-nifi-core-processors
 * %%
 * Copyright (C) 2017 ThinkBig Analytics
 * %%
 * 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.
 * #L%
 */

import org.apache.nifi.flowfile.attributes.FlowFileAttributeKey;

/**
 * Attributes used to record operational metadata in flow file
 */
public enum ComponentAttributes implements FlowFileAttributeKey {
    NUM_SOURCE_RECORDS("source.record.count"),
    HIGH_WATER_DATE("high.water.date"),
    NUM_MERGED_PARTITIONS("num.merged.partitions"),
    MERGED_PARTITION("merged.partition"),
    MERGED_PARTITION_ROWCOUNT("merged.partition.rowcount"),
    HDFS_FILE("hdfs.file"),
    FEED_DEPENDENT_RESULT_DELTAS("feed.dependent.results.deltas");

    private final String key;

    ComponentAttributes(String key) {
        this.key = key;
    }

    public String key() {
        return this.key;
    }

}
