| /* |
| * 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.dataflow; |
| |
| import static org.apache.beam.vendor.guava.v20_0.com.google.common.base.Preconditions.checkState; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Map; |
| import java.util.Properties; |
| import org.apache.beam.sdk.util.ReleaseInfo; |
| import org.apache.beam.vendor.guava.v20_0.com.google.common.collect.ImmutableMap; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** Populates versioning and other information for {@link DataflowRunner}. */ |
| public final class DataflowRunnerInfo extends ReleaseInfo { |
| private static final Logger LOG = LoggerFactory.getLogger(DataflowRunnerInfo.class); |
| |
| private static final String APACHE_BEAM_DISTRIBUTION_PROPERTIES_PATH = |
| "/org/apache/beam/runners/dataflow/dataflow.properties"; |
| private static final String FNAPI_ENVIRONMENT_MAJOR_VERSION_KEY = |
| "fnapi.environment.major.version"; |
| private static final String LEGACY_ENVIRONMENT_MAJOR_VERSION_KEY = |
| "legacy.environment.major.version"; |
| private static final String CONTAINER_VERSION_KEY = "container.version"; |
| |
| private static class LazyInit { |
| private static final DataflowRunnerInfo INSTANCE; |
| |
| static { |
| Properties properties; |
| try { |
| properties = load(APACHE_BEAM_DISTRIBUTION_PROPERTIES_PATH); |
| if (properties == null) { |
| // Print a warning if we can not load either the Dataflow distribution properties |
| // or the |
| LOG.warn("Dataflow runner properties resource not found."); |
| properties = new Properties(); |
| } |
| } catch (IOException e) { |
| LOG.warn("Error loading Dataflow runner properties resource: ", e); |
| properties = new Properties(); |
| } |
| |
| // Inherit the name and version from the Apache Beam distribution if this isn't |
| // the Dataflow distribution. |
| if (!properties.containsKey("name")) { |
| properties.setProperty("name", ReleaseInfo.getReleaseInfo().getName()); |
| } |
| if (!properties.containsKey("version")) { |
| properties.setProperty("version", ReleaseInfo.getReleaseInfo().getVersion()); |
| } |
| copyFromSystemProperties("java.vendor", properties); |
| copyFromSystemProperties("java.version", properties); |
| copyFromSystemProperties("os.arch", properties); |
| copyFromSystemProperties("os.name", properties); |
| copyFromSystemProperties("os.version", properties); |
| INSTANCE = new DataflowRunnerInfo(ImmutableMap.copyOf((Map) properties)); |
| } |
| } |
| |
| /** Returns an instance of {@link DataflowRunnerInfo}. */ |
| public static DataflowRunnerInfo getDataflowRunnerInfo() { |
| return LazyInit.INSTANCE; |
| } |
| |
| /** Provides the legacy environment's major version number. */ |
| public String getLegacyEnvironmentMajorVersion() { |
| checkState( |
| properties.containsKey(LEGACY_ENVIRONMENT_MAJOR_VERSION_KEY), |
| "Unknown legacy environment major version"); |
| return properties.get(LEGACY_ENVIRONMENT_MAJOR_VERSION_KEY); |
| } |
| |
| /** Provides the FnAPI environment's major version number. */ |
| public String getFnApiEnvironmentMajorVersion() { |
| checkState( |
| properties.containsKey(FNAPI_ENVIRONMENT_MAJOR_VERSION_KEY), |
| "Unknown FnAPI environment major version"); |
| return properties.get(FNAPI_ENVIRONMENT_MAJOR_VERSION_KEY); |
| } |
| |
| /** Provides the container version that will be used for constructing harness image paths. */ |
| public String getContainerVersion() { |
| checkState(properties.containsKey(CONTAINER_VERSION_KEY), "Unknown container version"); |
| return properties.get(CONTAINER_VERSION_KEY); |
| } |
| |
| @Override |
| public Map<String, String> getProperties() { |
| return ImmutableMap.copyOf((Map) properties); |
| } |
| |
| private final Map<String, String> properties; |
| |
| private DataflowRunnerInfo(Map<String, String> properties) { |
| this.properties = properties; |
| } |
| |
| private static Properties load(String path) throws IOException { |
| Properties properties = new Properties(); |
| try (InputStream in = DataflowRunnerInfo.class.getResourceAsStream(path)) { |
| if (in == null) { |
| return null; |
| } |
| properties.load(in); |
| } |
| return properties; |
| } |
| |
| private static void copyFromSystemProperties(String property, Properties properties) { |
| String value = System.getProperty(property); |
| if (value != null) { |
| properties.setProperty(property, value); |
| } |
| } |
| } |