com.alibaba.nacos.client.config.impl.AbstractConfigChangeParser Maven / Gradle / Ivy
/*
* Copyright 1999-2018 Alibaba Group Holding Ltd.
*
* Licensed 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 com.alibaba.nacos.client.config.impl;
import com.alibaba.nacos.api.config.ConfigChangeItem;
import com.alibaba.nacos.api.config.PropertyChangeType;
import com.alibaba.nacos.api.config.listener.ConfigChangeParser;
import java.util.HashMap;
import java.util.Map;
/**
* AbstractConfigChangeParser.
*
* @author rushsky518
*/
public abstract class AbstractConfigChangeParser implements ConfigChangeParser {
private final String configType;
public AbstractConfigChangeParser(String configType) {
this.configType = configType;
}
@Override
public boolean isResponsibleFor(String type) {
return this.configType.equalsIgnoreCase(type);
}
protected Map filterChangeData(Map oldMap, Map newMap) {
Map result = new HashMap<>(16);
for (Map.Entry e : (Iterable>) oldMap.entrySet()) {
ConfigChangeItem cci;
if (newMap.containsKey(e.getKey())) {
if (e.getValue().equals(newMap.get(e.getKey()))) {
continue;
}
cci = new ConfigChangeItem(e.getKey(), e.getValue().toString(), newMap.get(e.getKey()).toString());
cci.setType(PropertyChangeType.MODIFIED);
} else {
cci = new ConfigChangeItem(e.getKey(), e.getValue().toString(), null);
cci.setType(PropertyChangeType.DELETED);
}
result.put(e.getKey(), cci);
}
for (Map.Entry e : (Iterable>) newMap.entrySet()) {
if (!oldMap.containsKey(e.getKey())) {
ConfigChangeItem cci = new ConfigChangeItem(e.getKey(), null, e.getValue().toString());
cci.setType(PropertyChangeType.ADDED);
result.put(e.getKey(), cci);
}
}
return result;
}
}