com.facebook.presto.jdbc.internal.apache.http.config.Registry Maven / Gradle / Ivy
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* 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
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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package com.facebook.presto.jdbc.internal.apache.http.config;
import com.facebook.presto.jdbc.internal.apache.http.annotation.ThreadingBehavior;
import com.facebook.presto.jdbc.internal.apache.http.annotation.Contract;
import java.util.Locale;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
* Generic registry of items keyed by low-case string ID.
*
* @since 4.3
*/
@Contract(threading = ThreadingBehavior.SAFE)
public final class Registry implements Lookup {
private final Map map;
Registry(final Map map) {
super();
this.map = new ConcurrentHashMap(map);
}
@Override
public I lookup(final String key) {
if (key == null) {
return null;
}
return map.get(key.toLowerCase(Locale.ROOT));
}
@Override
public String toString() {
return map.toString();
}
}
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