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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.model.producer;
import com.yahoo.config.application.api.DeployLogger;
import com.yahoo.log.LogLevel;
import com.yahoo.vespa.config.*;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Set;
/**
* A UserConfigRepo is a repository for user configs, typically for a particular config producer. The repo encapsulates
* how the user configs are stored, and defines the methods to retrieve user configs and merge the repo with others.
*
* @author lulf
* @since 5.1
*/
public class UserConfigRepo {
private final Map<ConfigDefinitionKey, ConfigPayloadBuilder> userConfigsMap;
public UserConfigRepo() {
this.userConfigsMap = new LinkedHashMap<>();
}
@Override
public UserConfigRepo clone() {
return new UserConfigRepo(copyBuilders(userConfigsMap));
}
/**
* Must copy the builder, because the merge method on {@link AbstractConfigProducer} might override the row's builders otherwise
*/
private Map<ConfigDefinitionKey, ConfigPayloadBuilder> copyBuilders(Map<ConfigDefinitionKey, ConfigPayloadBuilder> source) {
Map<ConfigDefinitionKey, ConfigPayloadBuilder> ret = new LinkedHashMap<>();
for (Map.Entry<ConfigDefinitionKey, ConfigPayloadBuilder> e : source.entrySet()) {
ConfigDefinitionKey key = e.getKey();
ConfigPayloadBuilder sourceVal = e.getValue();
ConfigPayloadBuilder destVal = new ConfigPayloadBuilder(ConfigPayload.fromBuilder(sourceVal));
ret.put(key, destVal);
}
return ret;
}
public UserConfigRepo(Map<ConfigDefinitionKey, ConfigPayloadBuilder> map) {
this.userConfigsMap = map;
}
public UserConfigRepo(UserConfigRepo userConfigRepo) {
this.userConfigsMap = userConfigRepo.userConfigsMap;
}
public ConfigPayloadBuilder get(ConfigDefinitionKey key) {
return userConfigsMap.get(key);
}
public void merge(UserConfigRepo newRepo) {
for (Map.Entry<ConfigDefinitionKey, ConfigPayloadBuilder> entry : newRepo.userConfigsMap.entrySet()) {
if (entry.getValue() == null) continue;
ConfigDefinitionKey key = entry.getKey();
if (userConfigsMap.containsKey(key)) {
ConfigPayloadBuilder lhsBuilder = userConfigsMap.get(key);
ConfigPayloadBuilder rhsBuilder = entry.getValue();
lhsBuilder.override(rhsBuilder);
} else {
userConfigsMap.put(key, entry.getValue());
}
}
}
public boolean isEmpty() {
return userConfigsMap.isEmpty();
}
public int size() {
return userConfigsMap.size();
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
for (ConfigDefinitionKey key : userConfigsMap.keySet()) {
sb.append(key.toString());
}
return sb.toString();
}
/**
* The keys of all the configs contained in this.
* @return a set of ConfigDefinitionsKey
*/
public Set<ConfigDefinitionKey> configsProduced() {
return userConfigsMap.keySet();
}
}
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