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LuceneServerConfiguration.java
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LuceneServerConfiguration.java
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/*
* Copyright 2020 Yelp Inc.
*
* Licensed 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 com.yelp.nrtsearch.server.config;
import com.google.inject.Inject;
import com.yelp.nrtsearch.server.luceneserver.warming.WarmerConfig;
import java.io.InputStream;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class LuceneServerConfiguration {
private static final Pattern ENV_VAR_PATTERN = Pattern.compile("\\$\\{([A-Za-z0-9_]+)}");
private static final long AS_LARGE_AS_INFINITE = TimeUnit.DAYS.toSeconds(1000L);
public static final Path DEFAULT_USER_DIR =
Paths.get(System.getProperty("user.home"), "lucene", "server");
public static final Path DEFAULT_ARCHIVER_DIR =
Paths.get(DEFAULT_USER_DIR.toString(), "archiver");
public static final Path DEFAULT_BOTO_CFG_PATH =
Paths.get(DEFAULT_USER_DIR.toString(), "boto.cfg");
public static final Path DEFAULT_STATE_DIR =
Paths.get(DEFAULT_USER_DIR.toString(), "default_state");
public static final Path DEFAULT_INDEX_DIR =
Paths.get(DEFAULT_USER_DIR.toString(), "default_index");
private static final String DEFAULT_BUCKET_NAME = "DEFAULT_ARCHIVE_BUCKET";
private static final String DEFAULT_HOSTNAME = "localhost";
private static final int DEFAULT_PORT = 50051;
private static final int DEFAULT_REPLICATION_PORT = 50052;
private static final String DEFAULT_NODE_NAME = "main";
// buckets represent number of requests completed in "less than" seconds
private static final double[] DEFAULT_METRICS_BUCKETS =
new double[] {.005, .01, .025, .05, .075, .1, .25, .5, .75, 1, 2.5, 5, 7.5, 10};
private static final int DEFAULT_INTERVAL_MS = 1000 * 10;
private static final int DEFAULT_MAX_CONCURRENT_CALLS_REPLICATION = -1;
private static final List<String> DEFAULT_PLUGINS = Collections.emptyList();
private static final Path DEFAULT_PLUGIN_SEARCH_PATH =
Paths.get(DEFAULT_USER_DIR.toString(), "plugins");
private static final String DEFAULT_SERVICE_NAME = "nrtsearch-generic";
private final int port;
private final int replicationPort;
private final int replicaReplicationPortPingInterval;
private final int maxConcurrentCallsPerConnectionForReplication;
private final String nodeName;
private final String hostName;
private final String stateDir;
private final String indexDir;
private final String archiveDirectory;
private final String botoCfgPath;
private final String bucketName;
private final double[] metricsBuckets;
private final boolean publishJvmMetrics;
private final String[] plugins;
private final String pluginSearchPath;
private final String serviceName;
private final boolean restoreState;
private final boolean restoreFromIncArchiver;
private final boolean backupWithIncArchiver;
private final ThreadPoolConfiguration threadPoolConfiguration;
private final IndexPreloadConfig preloadConfig;
private final QueryCacheConfig queryCacheConfig;
private final WarmerConfig warmerConfig;
private final boolean downloadAsStream;
private final boolean fileSendDelay;
private final boolean virtualSharding;
private final boolean syncInitialNrtPoint;
private final boolean indexVerbose;
private final FileCopyConfig fileCopyConfig;
private final ScriptCacheConfig scriptCacheConfig;
private final boolean deadlineCancellation;
private final StateConfig stateConfig;
private final IndexStartConfig indexStartConfig;
private final YamlConfigReader configReader;
private final long maxConnectionAgeForReplication;
private final long maxConnectionAgeGraceForReplication;
@Inject
public LuceneServerConfiguration(InputStream yamlStream) {
configReader = new YamlConfigReader(yamlStream);
port = configReader.getInteger("port", DEFAULT_PORT);
replicationPort = configReader.getInteger("replicationPort", DEFAULT_REPLICATION_PORT);
replicaReplicationPortPingInterval =
configReader.getInteger("replicaReplicationPortPingInterval", DEFAULT_INTERVAL_MS);
maxConcurrentCallsPerConnectionForReplication =
configReader.getInteger(
"maxConcurrentCallsPerConnectionForReplication",
DEFAULT_MAX_CONCURRENT_CALLS_REPLICATION);
maxConnectionAgeForReplication =
configReader.getLong("maxConnectionAgeForReplication", AS_LARGE_AS_INFINITE);
maxConnectionAgeGraceForReplication =
configReader.getLong("maxConnectionAgeGraceForReplication", AS_LARGE_AS_INFINITE);
nodeName = configReader.getString("nodeName", DEFAULT_NODE_NAME);
hostName = substituteEnvVariables(configReader.getString("hostName", DEFAULT_HOSTNAME));
stateDir = configReader.getString("stateDir", DEFAULT_STATE_DIR.toString());
indexDir = configReader.getString("indexDir", DEFAULT_INDEX_DIR.toString());
archiveDirectory = configReader.getString("archiveDirectory", DEFAULT_ARCHIVER_DIR.toString());
botoCfgPath = configReader.getString("botoCfgPath", DEFAULT_BOTO_CFG_PATH.toString());
bucketName = configReader.getString("bucketName", DEFAULT_BUCKET_NAME);
double[] metricsBuckets;
try {
List<Double> bucketList = configReader.getDoubleList("metricsBuckets");
metricsBuckets = new double[bucketList.size()];
for (int i = 0; i < bucketList.size(); ++i) {
metricsBuckets[i] = bucketList.get(i);
}
} catch (ConfigKeyNotFoundException e) {
metricsBuckets = DEFAULT_METRICS_BUCKETS;
}
this.metricsBuckets = metricsBuckets;
publishJvmMetrics = configReader.getBoolean("publishJvmMetrics", true);
plugins = configReader.getStringList("plugins", DEFAULT_PLUGINS).toArray(new String[0]);
pluginSearchPath =
configReader.getString("pluginSearchPath", DEFAULT_PLUGIN_SEARCH_PATH.toString());
serviceName = configReader.getString("serviceName", DEFAULT_SERVICE_NAME);
restoreState = configReader.getBoolean("restoreState", false);
restoreFromIncArchiver = configReader.getBoolean("restoreFromIncArchiver", false);
backupWithIncArchiver = configReader.getBoolean("backupWithIncArchiver", false);
preloadConfig = IndexPreloadConfig.fromConfig(configReader);
queryCacheConfig = QueryCacheConfig.fromConfig(configReader);
warmerConfig = WarmerConfig.fromConfig(configReader);
downloadAsStream = configReader.getBoolean("downloadAsStream", true);
fileSendDelay = configReader.getBoolean("fileSendDelay", false);
virtualSharding = configReader.getBoolean("virtualSharding", false);
syncInitialNrtPoint = configReader.getBoolean("syncInitialNrtPoint", true);
indexVerbose = configReader.getBoolean("indexVerbose", false);
fileCopyConfig = FileCopyConfig.fromConfig(configReader);
threadPoolConfiguration = new ThreadPoolConfiguration(configReader);
scriptCacheConfig = ScriptCacheConfig.fromConfig(configReader);
deadlineCancellation = configReader.getBoolean("deadlineCancellation", false);
stateConfig = StateConfig.fromConfig(configReader);
indexStartConfig = IndexStartConfig.fromConfig(configReader);
}
public ThreadPoolConfiguration getThreadPoolConfiguration() {
return threadPoolConfiguration;
}
public int getPort() {
return port;
}
public String getServiceName() {
return serviceName;
}
public int getReplicationPort() {
return replicationPort;
}
public int getMaxConcurrentCallsPerConnectionForReplication() {
return maxConcurrentCallsPerConnectionForReplication;
}
public String getNodeName() {
return nodeName;
}
public String getStateDir() {
return stateDir;
}
public String getIndexDir() {
return indexDir;
}
public String getHostName() {
return hostName;
}
public String getBotoCfgPath() {
return botoCfgPath;
}
public String getBucketName() {
return bucketName;
}
public String getArchiveDirectory() {
return archiveDirectory;
}
public double[] getMetricsBuckets() {
return metricsBuckets;
}
public boolean getPublishJvmMetrics() {
return publishJvmMetrics;
}
public int getReplicaReplicationPortPingInterval() {
return replicaReplicationPortPingInterval;
}
public String[] getPlugins() {
return this.plugins;
}
public String getPluginSearchPath() {
return this.pluginSearchPath;
}
public boolean getRestoreState() {
return restoreState;
}
public boolean getRestoreFromIncArchiver() {
return restoreFromIncArchiver;
}
public boolean getBackupWithInArchiver() {
return backupWithIncArchiver;
}
public IndexPreloadConfig getPreloadConfig() {
return preloadConfig;
}
public QueryCacheConfig getQueryCacheConfig() {
return queryCacheConfig;
}
public WarmerConfig getWarmerConfig() {
return warmerConfig;
}
public boolean getDownloadAsStream() {
return downloadAsStream;
}
public boolean getFileSendDelay() {
return fileSendDelay;
}
public boolean getVirtualSharding() {
return virtualSharding;
}
public boolean getSyncInitialNrtPoint() {
return syncInitialNrtPoint;
}
public boolean getIndexVerbose() {
return indexVerbose;
}
public FileCopyConfig getFileCopyConfig() {
return fileCopyConfig;
}
public YamlConfigReader getConfigReader() {
return configReader;
}
public ScriptCacheConfig getScriptCacheConfig() {
return scriptCacheConfig;
}
public boolean getDeadlineCancellation() {
return deadlineCancellation;
}
public StateConfig getStateConfig() {
return stateConfig;
}
public IndexStartConfig getIndexStartConfig() {
return indexStartConfig;
}
/**
* Substitute all sub strings of the form ${FOO} with the environment variable value env[FOO].
* Variable names may only contain letters, numbers, and underscores. If a variable is not present
* in the environment, it is substituted with an empty string.
*
* @param s string to make substitutions
*/
private String substituteEnvVariables(String s) {
String result = s;
Matcher matcher = ENV_VAR_PATTERN.matcher(s);
Set<String> foundVars = null;
while (matcher.find()) {
if (foundVars == null) {
foundVars = new HashSet<>();
}
foundVars.add(matcher.group(1));
}
if (foundVars == null) {
return result;
}
for (String envVar : foundVars) {
String envStr = System.getenv(envVar);
if (envStr == null) {
envStr = "";
}
result = result.replaceAll("\\$\\{" + envVar + "}", envStr);
}
return result;
}
public long getMaxConnectionAgeForReplication() {
return maxConnectionAgeForReplication;
}
public long getMaxConnectionAgeGraceForReplication() {
return maxConnectionAgeGraceForReplication;
}
}