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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.plugin;
/**
* This class implements plugin config through system properties.
* Each plugin typically has its own system property prefix, such as
* "logserver.archiver.". A request for the config key "foo" will
* then return the contents of the "logserver.archiver.foo" system
* property.
*
* @author Stig Bakken
*/
public class SystemPropertyConfig extends Config {
private final String prefix;
/**
* @param prefix prefix string prepended to config keys
* as they are looked up as system properties.
*/
public SystemPropertyConfig(String prefix) {
this.prefix = prefix;
}
/** Returns a config value for the specified key */
public String get(String key, String defaultValue) {
return System.getProperty(prefix + key, defaultValue);
}
public String toString() {
return "Prefix=" + prefix;
}
}
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