gobblin.util.AzkabanTags.java Source code

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Here is the source code for gobblin.util.AzkabanTags.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 gobblin.util;

import java.util.Map;

import lombok.extern.slf4j.Slf4j;

import org.apache.commons.lang.StringUtils;
import org.apache.hadoop.conf.Configuration;

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Maps;

/**
 * Utility class for collecting metadata specific to a Azkaban runtime environment.
 */
@Slf4j
public class AzkabanTags {

    public static final ImmutableMap<String, String> PROPERTIES_TO_TAGS_MAP = new ImmutableMap.Builder<String, String>()
            .put("azkaban.flow.projectname", "azkabanProjectName").put("azkaban.flow.flowid", "azkabanFlowId")
            .put("azkaban.job.id", "azkabanJobId").put("azkaban.flow.execid", "azkabanExecId").build();

    /**
     * Uses {@link #getAzkabanTags(Configuration)} with default Hadoop {@link Configuration}
     */
    public static Map<String, String> getAzkabanTags() {
        return getAzkabanTags(new Configuration());
    }

    /**
     * Gets all useful Azkaban runtime properties required by metrics as a {@link Map}.
     *
     * @param conf Hadoop Configuration that contains the properties. Keys of {@link #PROPERTIES_TO_TAGS_MAP} lists out
     * all the properties to look for in {@link Configuration}.
     *
     * @return a {@link Map} with keys as property names (name mapping in {@link #PROPERTIES_TO_TAGS_MAP}) and the value
     * of the property from {@link Configuration}
     */
    public static Map<String, String> getAzkabanTags(Configuration conf) {
        Map<String, String> tagMap = Maps.newHashMap();

        for (Map.Entry<String, String> entry : PROPERTIES_TO_TAGS_MAP.entrySet()) {
            if (StringUtils.isNotBlank(conf.get(entry.getKey()))) {
                tagMap.put(entry.getValue(), conf.get(entry.getKey()));
            } else {
                log.warn(String.format("No config value found for config %s. Metrics will not have tag %s",
                        entry.getKey(), entry.getValue()));
            }
        }
        return tagMap;
    }
}