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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.config.subscription;
import com.yahoo.config.ConfigInstance;
import com.yahoo.vespa.config.ConfigKey;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* Config source as a programmatically built set of {@link com.yahoo.config.ConfigInstance}s
*
* @author Vegard Havdal
*/
public class ConfigSet implements ConfigSource {
private final Map<ConfigKey<?>, ConfigInstance.Builder> configs = new ConcurrentHashMap<>();
/**
* Inserts a new builder in this set. If an existing entry exists, it is overwritten.
*
* @param configId The config id for this builder.
* @param builder The builder that will produce config for the particular config id.
*/
@SuppressWarnings({"unchecked", "rawtypes"})
public void addBuilder(String configId, ConfigInstance.Builder builder) {
Class<?> configClass = builder.getClass().getDeclaringClass();
ConfigKey<?> key = new ConfigKey(configClass, configId);
configs.put(key, builder);
}
/**
* Returns a Builder matching the given key, or null if no match
*
* @param key a config key to get a Builder for
* @return a ConfigInstance
*/
public ConfigInstance.Builder get(ConfigKey<?> key) {
return configs.get(key);
}
/**
* Returns true if this set contains a config instance matching the given key
*
* @param key a config key
* @return a ConfigInstance
*/
public boolean contains(ConfigKey<?> key) {
return configs.containsKey(key);
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder();
for (Map.Entry<ConfigKey<?>, ConfigInstance.Builder> entry : configs.entrySet()) {
sb.append(entry.getKey()).append("=>").append(entry.getValue());
}
return sb.toString();
}
}
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