68 lines
2.2 KiB
Java
68 lines
2.2 KiB
Java
package it.tdlight.common;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.atomic.AtomicLong;
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import java.util.concurrent.atomic.AtomicReference;
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public class InternalClientManager implements AutoCloseable {
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private static final AtomicReference<InternalClientManager> INSTANCE = new AtomicReference<>(null);
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private final String implementationName;
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private final ResponseReceiver responseReceiver = new ResponseReceiver(this::handleClientEvents);
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private final ConcurrentHashMap<Integer, ClientEventsHandler> registeredClientEventHandlers = new ConcurrentHashMap<>();
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private final AtomicLong currentQueryId = new AtomicLong();
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private InternalClientManager(String implementationName) {
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try {
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Init.start();
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} catch (Throwable ex) {
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ex.printStackTrace();
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System.exit(1);
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}
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this.implementationName = implementationName;
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}
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public static InternalClientManager get(String implementationName) {
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return INSTANCE.updateAndGet(val -> val == null ? new InternalClientManager(implementationName) : val);
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}
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private void handleClientEvents(int clientId, boolean isClosed, long[] clientEventIds, Object[] clientEvents) {
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ClientEventsHandler handler = registeredClientEventHandlers.get(clientId);
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if (handler != null) {
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handler.handleEvents(isClosed, clientEventIds, clientEvents);
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} else {
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System.err.println("Unknown client id " + clientId + ", " + clientEvents.length + " events have been dropped!");
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for (Object clientEvent : clientEvents) {
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System.err.println(clientEvent);
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}
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}
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if (isClosed) {
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registeredClientEventHandlers.remove(clientId);
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}
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}
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public void registerClient(int clientId, InternalClient internalClient) {
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responseReceiver.registerClient(clientId);
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boolean replaced = registeredClientEventHandlers.put(clientId, internalClient) != null;
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if (replaced) {
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throw new IllegalStateException("Client " + clientId + " already registered");
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}
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}
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public String getImplementationName() {
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return implementationName;
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}
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public long getNextQueryId() {
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return currentQueryId.updateAndGet(value -> (value >= Long.MAX_VALUE ? 0 : value) + 1);
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}
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@Override
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public void close() throws InterruptedException {
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responseReceiver.close();
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}
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}
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