| /** |
| * 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 org.apache.heron.metricsmgr; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileNotFoundException; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.yaml.snakeyaml.Yaml; |
| |
| import org.apache.heron.common.basics.SysUtils; |
| import org.apache.heron.common.basics.TypeUtils; |
| |
| public class MetricsSinksConfig { |
| public static final String CONFIG_KEY_METRICS_SINKS = "sinks"; |
| public static final String CONFIG_KEY_CLASSNAME = "class"; |
| public static final String CONFIG_KEY_FLUSH_FREQUENCY_MS = "flush-frequency-ms"; |
| public static final String CONFIG_KEY_SINK_RESTART_ATTEMPTS = "sink-restart-attempts"; |
| public static final int DEFAULT_SINK_RESTART_ATTEMPTS = 0; |
| |
| private final Map<String, Map<String, Object>> sinksConfigs = new HashMap<>(); |
| |
| @SuppressWarnings("unchecked") |
| public MetricsSinksConfig(String filename) throws FileNotFoundException { |
| FileInputStream fin = new FileInputStream(new File(filename)); |
| try { |
| Yaml yaml = new Yaml(); |
| Map<Object, Object> ret = (Map<Object, Object>) yaml.load(fin); |
| |
| if (ret == null) { |
| throw new RuntimeException("Could not parse metrics-sinks config file"); |
| } else { |
| for (String sinkId : TypeUtils.getListOfStrings(ret.get(CONFIG_KEY_METRICS_SINKS))) { |
| sinksConfigs.put(sinkId, (Map<String, Object>) ret.get(sinkId)); |
| } |
| } |
| } finally { |
| SysUtils.closeIgnoringExceptions(fin); |
| } |
| } |
| |
| public void setConfig(String key, Object value) { |
| for (Map<String, Object> config : sinksConfigs.values()) { |
| config.put(key, value); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return sinksConfigs.toString(); |
| } |
| |
| public int getNumberOfSinks() { |
| return sinksConfigs.keySet().size(); |
| } |
| |
| public Map<String, Object> getConfigForSink(String sinkId) { |
| return sinksConfigs.get(sinkId); |
| } |
| |
| public List<String> getSinkIds() { |
| return new ArrayList<>(sinksConfigs.keySet()); |
| } |
| } |