e6fa377d75
Summary: This mirrors the extension support added to the desktop plugin and allows people to dynamically add extension commands Reviewed By: danielbuechele Differential Revision: D8691167 fbshipit-source-id: 60136b960f8bbdfa42b2077d1f5f7b391fc44443
48 lines
968 B
Java
48 lines
968 B
Java
/*
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* Copyright (c) 2018-present, Facebook, Inc.
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*
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* This source code is licensed under the MIT license found in the LICENSE
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* file in the root directory of this source tree.
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*
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*/
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package com.facebook.sonar.plugins.inspector;
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import java.lang.ref.WeakReference;
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import java.util.HashMap;
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import java.util.Map;
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import javax.annotation.Nullable;
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public class ObjectTracker {
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ObjectTracker() {}
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private final Map<String, WeakReference<Object>> mObjects = new HashMap<>();
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void put(String id, Object obj) {
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mObjects.put(id, new WeakReference<>(obj));
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}
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@Nullable
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public Object get(String id) {
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final WeakReference<Object> weakObj = mObjects.get(id);
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if (weakObj == null) {
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return null;
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}
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final Object obj = weakObj.get();
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if (obj == null) {
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mObjects.remove(id);
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}
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return obj;
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}
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void clear() {
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mObjects.clear();
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}
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boolean contains(String id) {
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return mObjects.containsKey(id);
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}
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}
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