| /* |
| * 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.flink.runtime.metrics; |
| |
| import org.apache.flink.configuration.Configuration; |
| import org.apache.flink.configuration.MetricOptions; |
| import org.apache.flink.runtime.metrics.scope.ScopeFormats; |
| import org.apache.flink.runtime.rpc.akka.AkkaRpcServiceUtils; |
| import org.apache.flink.util.Preconditions; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Configuration object for {@link MetricRegistryImpl}. |
| */ |
| public class MetricRegistryConfiguration { |
| |
| private static final Logger LOG = LoggerFactory.getLogger(MetricRegistryConfiguration.class); |
| |
| private static volatile MetricRegistryConfiguration defaultConfiguration; |
| |
| // scope formats for the different components |
| private final ScopeFormats scopeFormats; |
| |
| // delimiter for the scope strings |
| private final char delimiter; |
| |
| private final long queryServiceMessageSizeLimit; |
| |
| public MetricRegistryConfiguration( |
| ScopeFormats scopeFormats, |
| char delimiter, |
| long queryServiceMessageSizeLimit) { |
| |
| this.scopeFormats = Preconditions.checkNotNull(scopeFormats); |
| this.delimiter = delimiter; |
| this.queryServiceMessageSizeLimit = queryServiceMessageSizeLimit; |
| } |
| |
| // ------------------------------------------------------------------------ |
| // Getter |
| // ------------------------------------------------------------------------ |
| |
| public ScopeFormats getScopeFormats() { |
| return scopeFormats; |
| } |
| |
| public char getDelimiter() { |
| return delimiter; |
| } |
| |
| public long getQueryServiceMessageSizeLimit() { |
| return queryServiceMessageSizeLimit; |
| } |
| |
| // ------------------------------------------------------------------------ |
| // Static factory methods |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * Create a metric registry configuration object from the given {@link Configuration}. |
| * |
| * @param configuration to generate the metric registry configuration from |
| * @return Metric registry configuration generated from the configuration |
| */ |
| public static MetricRegistryConfiguration fromConfiguration(Configuration configuration) { |
| ScopeFormats scopeFormats; |
| try { |
| scopeFormats = ScopeFormats.fromConfig(configuration); |
| } catch (Exception e) { |
| LOG.warn("Failed to parse scope format, using default scope formats", e); |
| scopeFormats = ScopeFormats.fromConfig(new Configuration()); |
| } |
| |
| char delim; |
| try { |
| delim = configuration.getString(MetricOptions.SCOPE_DELIMITER).charAt(0); |
| } catch (Exception e) { |
| LOG.warn("Failed to parse delimiter, using default delimiter.", e); |
| delim = '.'; |
| } |
| |
| final long maximumFrameSize = AkkaRpcServiceUtils.extractMaximumFramesize(configuration); |
| |
| // padding to account for serialization overhead |
| final long messageSizeLimitPadding = 256; |
| |
| return new MetricRegistryConfiguration(scopeFormats, delim, maximumFrameSize - messageSizeLimitPadding); |
| } |
| |
| public static MetricRegistryConfiguration defaultMetricRegistryConfiguration() { |
| // create the default metric registry configuration only once |
| if (defaultConfiguration == null) { |
| synchronized (MetricRegistryConfiguration.class) { |
| if (defaultConfiguration == null) { |
| defaultConfiguration = fromConfiguration(new Configuration()); |
| } |
| } |
| } |
| |
| return defaultConfiguration; |
| } |
| |
| } |