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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.dubbo.common.config.configcenter.nop;
import org.apache.dubbo.common.URL;
import org.apache.dubbo.common.config.configcenter.ConfigurationListener;
import org.apache.dubbo.common.config.configcenter.DynamicConfiguration;
/**
* The default extension of {@link DynamicConfiguration}. If user does not specify a config center, or specifies one
* that is not a valid extension, it will default to this one.
*/
@Deprecated
public class NopDynamicConfiguration implements DynamicConfiguration {
public NopDynamicConfiguration(URL url) {
// no-op
}
@Override
public Object getInternalProperty(String key) {
return null;
}
@Override
public void addListener(String key, String group, ConfigurationListener listener) {
// no-op
}
@Override
public void removeListener(String key, String group, ConfigurationListener listener) {
// no-op
}
@Override
public String getConfig(String key, String group, long timeout) throws IllegalStateException {
// no-op
return null;
}
/**
* @since 2.7.5
*/
@Override
public boolean publishConfig(String key, String group, String content) {
return true;
}
@Override
public void close() throws Exception {
// no-op
}
}