108 lines
3.1 KiB
Java
108 lines
3.1 KiB
Java
package net.citizensnpcs.npc.profile;
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import java.util.ArrayDeque;
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import java.util.ArrayList;
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import java.util.Deque;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import javax.annotation.Nullable;
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import org.bukkit.Bukkit;
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import com.google.common.base.Preconditions;
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import net.citizensnpcs.api.CitizensAPI;
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/**
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* Thread used to fetch profiles from the Mojang servers.
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*
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* <p>
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* Maintains a cache of profiles so that no profile is ever requested more than once during a single server session.
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* </p>
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*
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* @see ProfileFetcher
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*/
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class ProfileFetchThread implements Runnable {
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private final ProfileFetcher profileFetcher = new ProfileFetcher();
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private final Deque<ProfileRequest> queue = new ArrayDeque<ProfileRequest>();
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private final Map<String, ProfileRequest> requested = new HashMap<String, ProfileRequest>(35);
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private final Object sync = new Object(); // sync for queue & requested fields
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ProfileFetchThread() {
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}
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/**
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* Fetch a profile.
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*
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* @param name
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* The name of the player the profile belongs to.
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* @param handler
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* Optional handler to handle result fetch result. Handler always invoked from the main thread.
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*
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* @see ProfileFetcher#fetch
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*/
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void fetch(String name, @Nullable ProfileFetchHandler handler) {
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Preconditions.checkNotNull(name);
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name = name.toLowerCase();
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ProfileRequest request;
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synchronized (sync) {
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request = requested.get(name);
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if (request == null) {
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request = new ProfileRequest(name, handler);
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queue.add(request);
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requested.put(name, request);
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return;
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} else if (request.getResult() == ProfileFetchResult.TOO_MANY_REQUESTS) {
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queue.add(request);
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}
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}
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if (handler != null) {
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if (request.getResult() == ProfileFetchResult.PENDING
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|| request.getResult() == ProfileFetchResult.TOO_MANY_REQUESTS) {
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addHandler(request, handler);
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} else {
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sendResult(handler, request);
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}
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}
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}
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@Override
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public void run() {
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List<ProfileRequest> requests;
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synchronized (sync) {
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if (queue.isEmpty())
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return;
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requests = new ArrayList<ProfileRequest>(queue);
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queue.clear();
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}
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profileFetcher.fetchRequests(requests);
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}
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private static void addHandler(final ProfileRequest request, final ProfileFetchHandler handler) {
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Bukkit.getScheduler().scheduleSyncDelayedTask(CitizensAPI.getPlugin(), new Runnable() {
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@Override
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public void run() {
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request.addHandler(handler);
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}
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}, 1);
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}
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private static void sendResult(final ProfileFetchHandler handler, final ProfileRequest request) {
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Bukkit.getScheduler().scheduleSyncDelayedTask(CitizensAPI.getPlugin(), new Runnable() {
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@Override
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public void run() {
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handler.onResult(request);
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}
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}, 1);
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}
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}
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