/
ConfigChanges.java
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/
ConfigChanges.java
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package org.rapidoid.config;
import org.rapidoid.RapidoidThing;
import org.rapidoid.annotation.Authors;
import org.rapidoid.annotation.Since;
import org.rapidoid.collection.Coll;
import org.rapidoid.u.U;
import java.util.List;
import java.util.Map;
import java.util.Set;
/*
* #%L
* rapidoid-commons
* %%
* Copyright (C) 2014 - 2016 Nikolche Mihajlovski and contributors
* %%
* 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.
* #L%
*/
@Authors("Nikolche Mihajlovski")
@Since("5.3.0")
public class ConfigChanges extends RapidoidThing {
public final boolean initial;
public final Map<String, Object> added = Coll.synchronizedMap();
public final Map<String, Object> changed = Coll.synchronizedMap();
public final Set<String> removed = Coll.synchronizedSet();
public final List<String> keys = Coll.synchronizedList();
private ConfigChanges(boolean initial) {
this.initial = initial;
}
public static ConfigChanges from(List<String> keys, Map<String, Object> old, Map<String, Object> fresh, boolean initial) {
ConfigChanges changes = new ConfigChanges(initial);
Coll.assign(changes.keys, keys);
for (Map.Entry<String, Object> e : old.entrySet()) {
String key = e.getKey();
Object oldValue = e.getValue();
Object newValue = fresh.get(key);
if (newValue != null) {
if (U.neq(oldValue, newValue)) {
changes.changed.put(key, newValue);
}
} else {
changes.removed.add(key);
}
}
for (Map.Entry<String, Object> e : fresh.entrySet()) {
String key = e.getKey();
Object newValue = fresh.get(key);
if (!old.containsKey(key)) {
changes.added.put(key, newValue);
}
}
return changes;
}
public int count() {
return added.size() + changed.size() + removed.size();
}
public <T> Map<String, T> getAddedAs(Class<T> type) {
return Coll.toBeanMap(added, type);
}
public <T> Map<String, T> getChangedAs(Class<T> type) {
return Coll.toBeanMap(changed, type);
}
public <T> Map<String, T> getAddedOrChangedAs(Class<T> type) {
Map<String, Object> addedOrChanged = U.map();
addedOrChanged.putAll(added);
addedOrChanged.putAll(changed);
return Coll.toBeanMap(addedOrChanged, type);
}
@Override
public String toString() {
return "ConfigChanges{" +
"initial=" + initial +
", added=" + added +
", changed=" + changed +
", removed=" + removed +
", keys=" + keys +
'}';
}
}