| /* |
| * 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.beam.runners.core.metrics; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import org.apache.beam.sdk.coders.Coder; |
| import org.apache.beam.sdk.coders.DoubleCoder; |
| import org.apache.beam.sdk.coders.VarLongCoder; |
| import org.apache.beam.vendor.grpc.v1p43p2.com.google.protobuf.ByteString; |
| import org.joda.time.Instant; |
| |
| /** A set of functions used to encode and decode common monitoring info types. */ |
| public class MonitoringInfoEncodings { |
| private static final Coder<Long> VARINT_CODER = VarLongCoder.of(); |
| private static final Coder<Double> DOUBLE_CODER = DoubleCoder.of(); |
| |
| /** Encodes to {@link MonitoringInfoConstants.TypeUrns#DISTRIBUTION_INT64_TYPE}. */ |
| public static ByteString encodeInt64Distribution(DistributionData data) { |
| ByteString.Output output = ByteString.newOutput(); |
| try { |
| VARINT_CODER.encode(data.count(), output); |
| VARINT_CODER.encode(data.sum(), output); |
| VARINT_CODER.encode(data.min(), output); |
| VARINT_CODER.encode(data.max(), output); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| return output.toByteString(); |
| } |
| |
| /** Decodes from {@link MonitoringInfoConstants.TypeUrns#DISTRIBUTION_INT64_TYPE}. */ |
| public static DistributionData decodeInt64Distribution(ByteString payload) { |
| InputStream input = payload.newInput(); |
| try { |
| long count = VARINT_CODER.decode(input); |
| long sum = VARINT_CODER.decode(input); |
| long min = VARINT_CODER.decode(input); |
| long max = VARINT_CODER.decode(input); |
| return DistributionData.create(sum, count, min, max); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /** Encodes to {@link MonitoringInfoConstants.TypeUrns#DISTRIBUTION_DOUBLE_TYPE}. */ |
| // TODO(BEAM-4374): Implement decodeDoubleDistribution(...) |
| public static ByteString encodeDoubleDistribution( |
| long count, double sum, double min, double max) { |
| ByteString.Output output = ByteString.newOutput(); |
| try { |
| VARINT_CODER.encode(count, output); |
| DOUBLE_CODER.encode(sum, output); |
| DOUBLE_CODER.encode(min, output); |
| DOUBLE_CODER.encode(max, output); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| return output.toByteString(); |
| } |
| |
| /** Encodes to {@link MonitoringInfoConstants.TypeUrns#LATEST_INT64_TYPE}. */ |
| public static ByteString encodeInt64Gauge(GaugeData data) { |
| ByteString.Output output = ByteString.newOutput(); |
| try { |
| VARINT_CODER.encode(data.timestamp().getMillis(), output); |
| VARINT_CODER.encode(data.value(), output); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| return output.toByteString(); |
| } |
| |
| /** Decodes from {@link MonitoringInfoConstants.TypeUrns#LATEST_INT64_TYPE}. */ |
| public static GaugeData decodeInt64Gauge(ByteString payload) { |
| InputStream input = payload.newInput(); |
| try { |
| Instant timestamp = new Instant(VARINT_CODER.decode(input)); |
| return GaugeData.create(VARINT_CODER.decode(input), timestamp); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /** Encodes to {@link MonitoringInfoConstants.TypeUrns#SUM_INT64_TYPE}. */ |
| public static ByteString encodeInt64Counter(long value) { |
| ByteString.Output output = ByteString.newOutput(); |
| try { |
| VARINT_CODER.encode(value, output); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| return output.toByteString(); |
| } |
| |
| /** Decodes from {@link MonitoringInfoConstants.TypeUrns#SUM_INT64_TYPE}. */ |
| public static long decodeInt64Counter(ByteString payload) { |
| try { |
| return VarLongCoder.of().decode(payload.newInput()); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| |
| /** Encodes to {@link MonitoringInfoConstants.TypeUrns#SUM_DOUBLE_TYPE}. */ |
| public static ByteString encodeDoubleCounter(double value) { |
| ByteString.Output output = ByteString.newOutput(); |
| try { |
| DOUBLE_CODER.encode(value, output); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| return output.toByteString(); |
| } |
| |
| /** Decodes from {@link MonitoringInfoConstants.TypeUrns#SUM_DOUBLE_TYPE}. */ |
| public static double decodeDoubleCounter(ByteString payload) { |
| try { |
| return DOUBLE_CODER.decode(payload.newInput()); |
| } catch (IOException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |