94 lines
3.4 KiB
Java
94 lines
3.4 KiB
Java
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package io.grpc;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Comparator;
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import java.util.Iterator;
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import java.util.List;
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import java.util.ServiceConfigurationError;
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import java.util.ServiceLoader;
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/* loaded from: classes6.dex */
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final class ServiceProviders {
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/* loaded from: classes6.dex */
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public interface PriorityAccessor<T> {
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int getPriority(T t);
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boolean isAvailable(T t);
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}
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private ServiceProviders() {
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}
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public static <T> T load(Class<T> cls, Iterable<Class<?>> iterable, ClassLoader classLoader, PriorityAccessor<T> priorityAccessor) {
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List loadAll = loadAll(cls, iterable, classLoader, priorityAccessor);
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if (loadAll.isEmpty()) {
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return null;
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}
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return (T) loadAll.get(0);
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}
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public static <T> List<T> loadAll(Class<T> cls, Iterable<Class<?>> iterable, ClassLoader classLoader, PriorityAccessor<T> priorityAccessor) {
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Iterable candidatesViaServiceLoader;
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if (isAndroid(classLoader)) {
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candidatesViaServiceLoader = getCandidatesViaHardCoded(cls, iterable);
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} else {
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candidatesViaServiceLoader = getCandidatesViaServiceLoader(cls, classLoader);
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}
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ArrayList arrayList = new ArrayList();
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for (T t : candidatesViaServiceLoader) {
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if (priorityAccessor.isAvailable(t)) {
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arrayList.add(t);
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}
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}
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Collections.sort(arrayList, Collections.reverseOrder(new Comparator<T>(priorityAccessor) { // from class: io.grpc.ServiceProviders.1
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final PriorityAccessor val$priorityAccessor;
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{
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this.val$priorityAccessor = priorityAccessor;
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}
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@Override // java.util.Comparator
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public int compare(T t2, T t3) {
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int priority = this.val$priorityAccessor.getPriority(t2) - this.val$priorityAccessor.getPriority(t3);
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return priority != 0 ? priority : t2.getClass().getName().compareTo(t3.getClass().getName());
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}
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}));
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return Collections.unmodifiableList(arrayList);
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public static boolean isAndroid(ClassLoader classLoader) {
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try {
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Class.forName("android.app.Application", false, classLoader);
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return true;
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} catch (Exception unused) {
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return false;
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}
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}
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public static <T> Iterable<T> getCandidatesViaServiceLoader(Class<T> cls, ClassLoader classLoader) {
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ServiceLoader load = ServiceLoader.load(cls, classLoader);
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return !load.iterator().hasNext() ? ServiceLoader.load(cls) : load;
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}
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/* JADX INFO: Access modifiers changed from: package-private */
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public static <T> Iterable<T> getCandidatesViaHardCoded(Class<T> cls, Iterable<Class<?>> iterable) {
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ArrayList arrayList = new ArrayList();
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Iterator<Class<?>> it = iterable.iterator();
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while (it.hasNext()) {
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arrayList.add(create(cls, it.next()));
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}
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return arrayList;
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}
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static <T> T create(Class<T> cls, Class<?> cls2) {
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try {
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return (T) cls2.asSubclass(cls).getConstructor(new Class[0]).newInstance(new Object[0]);
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} catch (Throwable th) {
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throw new ServiceConfigurationError(String.format("Provider %s could not be instantiated %s", cls2.getName(), th), th);
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}
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}
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}
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