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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.common.settings;
import java.io.Closeable;
import java.io.InputStream;
import java.security.GeneralSecurityException;
import java.util.Set;
/**
* An accessor for settings which are securely stored. See {@link SecureSetting}.
*/
public interface SecureSettings extends Closeable {
/** Returns true iff the settings are loaded and retrievable. */
boolean isLoaded();
/** Returns the names of all secure settings available. */
Set<String> getSettingNames();
/** Return a string setting. The {@link SecureString} should be closed once it is used. */
SecureString getString(String setting) throws GeneralSecurityException;
/** Return a file setting. The {@link InputStream} should be closed once it is used. */
InputStream getFile(String setting) throws GeneralSecurityException;
}
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