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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file 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
*
* 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 org.elasticsearch.cluster.settings;
import com.carrotsearch.hppc.cursors.ObjectCursor;
import com.carrotsearch.hppc.cursors.ObjectObjectCursor;
import org.elasticsearch.cluster.ClusterState;
import org.elasticsearch.common.collect.ImmutableOpenMap;
import org.elasticsearch.common.regex.Regex;
/**
* A container for setting names and validation methods for those settings.
*/
public class DynamicSettings {
private final ImmutableOpenMap<String, Validator> dynamicSettings;
public static class Builder {
private ImmutableOpenMap.Builder<String, Validator> settings = ImmutableOpenMap.builder();
public void addSetting(String setting, Validator validator) {
Validator old = settings.put(setting, validator);
if (old != null) {
throw new IllegalArgumentException("Cannot register setting [" + setting + "] twice");
}
}
public DynamicSettings build() {
return new DynamicSettings(settings.build());
}
}
private DynamicSettings(ImmutableOpenMap<String, Validator> settings) {
this.dynamicSettings = settings;
}
public boolean isDynamicOrLoggingSetting(String key) {
return hasDynamicSetting(key) || key.startsWith("logger.");
}
public boolean hasDynamicSetting(String key) {
for (ObjectCursor<String> dynamicSetting : dynamicSettings.keys()) {
if (Regex.simpleMatch(dynamicSetting.value, key)) {
return true;
}
}
return false;
}
public String validateDynamicSetting(String dynamicSetting, String value, ClusterState clusterState) {
for (ObjectObjectCursor<String, Validator> setting : dynamicSettings) {
if (Regex.simpleMatch(setting.key, dynamicSetting)) {
return setting.value.validate(dynamicSetting, value, clusterState);
}
}
return null;
}
}
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