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EhViewer/app/src/main/java/com/hippo/conaco/Register.java
T
2021-01-24 20:34:10 +08:00

73 lines
2.0 KiB
Java

/*
* Copyright 2016 Hippo Seven
*
* 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.hippo.conaco;
import com.hippo.yorozuya.collect.Multimap;
import com.hippo.yorozuya.collect.SparseILArray;
import java.util.List;
class Register<V> {
private final SparseILArray<ConacoTask<V>> mIdMap = new SparseILArray<>();
private final Multimap<String, ConacoTask<V>> mKeyMap = Multimap.create();
/**
* @return true for the key is already registered
*/
public synchronized boolean register(int id, ConacoTask<V> task) {
boolean repeatedKey = false;
String taskKey = task.getKey();
// For no-key task, there no need to check
if (taskKey != null) {
repeatedKey = mKeyMap.countElements(taskKey) != 0;
}
// Append task
mKeyMap.putElement(taskKey, task);
mIdMap.append(id, task);
return repeatedKey;
}
public synchronized ConacoTask<V> unregister(int id) {
ConacoTask<V> task = mIdMap.remove(id);
if (task != null) {
mKeyMap.removeElement(task.getKey(), task);
}
return task;
}
public synchronized boolean contain(int id) {
return mIdMap.indexOfKey(id) >= 0;
}
public synchronized ConacoTask<V> getByKey(String key) {
if (key == null) {
return null;
}
List<ConacoTask<V>> list = mKeyMap.get(key);
if (list != null && list.size() > 0) {
return list.get(0);
} else {
return null;
}
}
}