82 lines
2.9 KiB
Java
82 lines
2.9 KiB
Java
/*
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* Copyright (C) 2024 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.app.appsearch.functions;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.app.appsearch.AppSearchResult;
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import android.app.appsearch.aidl.AppSearchResultParcel;
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import android.app.appsearch.aidl.IAppSearchResultCallback;
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import android.os.RemoteException;
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import android.util.Log;
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import java.util.Objects;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.function.Consumer;
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/**
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* A wrapper of IAppSearchResultCallback which swallows the {@link RemoteException}. This callback
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* is intended for one-time use only. Subsequent calls to onResult() will be ignored.
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*
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* @hide
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*/
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public class SafeOneTimeAppSearchResultCallback {
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private static final String TAG = "AppSearchAppFunction";
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private final AtomicBoolean mOnResultCalled = new AtomicBoolean(false);
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@NonNull private final IAppSearchResultCallback mCallback;
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@Nullable private final Consumer<AppSearchResult<?>> mOnDispatchCallback;
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public SafeOneTimeAppSearchResultCallback(@NonNull IAppSearchResultCallback callback) {
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this(callback, /* onDispatchCallback= */ null);
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}
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/**
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* @param callback The callback to wrap.
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* @param onDispatchCallback An optional callback invoked after the wrapped callback has been
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* dispatched with a result. This callback receives the result that has been dispatched.
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*/
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public SafeOneTimeAppSearchResultCallback(
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@NonNull IAppSearchResultCallback callback,
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@Nullable Consumer<AppSearchResult<?>> onDispatchCallback) {
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mCallback = Objects.requireNonNull(callback);
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mOnDispatchCallback = onDispatchCallback;
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}
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public void onFailedResult(@NonNull AppSearchResult<?> result) {
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onResult(AppSearchResultParcel.fromFailedResult(result));
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}
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public void onResult(@NonNull AppSearchResultParcel<?> result) {
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if (!mOnResultCalled.compareAndSet(false, true)) {
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Log.w(TAG, "Ignore subsequent calls to onResult()");
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return;
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}
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try {
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mCallback.onResult(result);
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} catch (RemoteException ex) {
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// Failed to notify the other end. Ignore.
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Log.w(TAG, "Failed to invoke the callback", ex);
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}
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if (mOnDispatchCallback != null) {
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mOnDispatchCallback.accept(result.getResult());
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}
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}
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}
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