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wpinet/src/main/java/org/wpilib/net/MulticastServiceResolver.java

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+// Copyright (c) FIRST and other WPILib contributors.
+// Open Source Software; you can modify and/or share it under the terms of
+// the WPILib BSD license file in the root directory of this project.
+
+package edu.wpi.first.net;
+
+import edu.wpi.first.util.WPICleaner;
+import java.lang.ref.Cleaner.Cleanable;
+
+/** Class to resolve a service over mDNS. */
+public class MulticastServiceResolver implements AutoCloseable {
+  private final int m_handle;
+  private final Cleanable m_cleanable;
+
+  private static Runnable cleanupAction(int handle) {
+    return () -> WPINetJNI.freeMulticastServiceResolver(handle);
+  }
+
+  /**
+   * Creates a MulticastServiceResolver.
+   *
+   * @param serviceType service type to look for
+   */
+  @SuppressWarnings("this-escape")
+  public MulticastServiceResolver(String serviceType) {
+    m_handle = WPINetJNI.createMulticastServiceResolver(serviceType);
+    m_cleanable = WPICleaner.register(this, cleanupAction(m_handle));
+  }
+
+  @Override
+  public void close() {
+    m_cleanable.clean();
+  }
+
+  /** Starts multicast service resolver. */
+  public void start() {
+    WPINetJNI.startMulticastServiceResolver(m_handle);
+  }
+
+  /** Stops multicast service resolver. */
+  public void stop() {
+    WPINetJNI.stopMulticastServiceResolver(m_handle);
+  }
+
+  /**
+   * Returns true if there's a multicast service resolver implementation.
+   *
+   * @return True if there's a multicast service resolver implementation.
+   */
+  public boolean hasImplementation() {
+    return WPINetJNI.getMulticastServiceResolverHasImplementation(m_handle);
+  }
+
+  /**
+   * Returns event handle.
+   *
+   * @return Event handle.
+   */
+  public int getEventHandle() {
+    return WPINetJNI.getMulticastServiceResolverEventHandle(m_handle);
+  }
+
+  /**
+   * Returns multicast service resolver data.
+   *
+   * @return Multicast service resolver data.
+   */
+  public ServiceData[] getData() {
+    return WPINetJNI.getMulticastServiceResolverData(m_handle);
+  }
+}