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package javax.sound.sampled;

import java.security.BasicPermission;


The AudioPermission class represents access rights to the audio system resources. An AudioPermission contains a target name but no actions list; you either have the named permission or you don't.

The target name is the name of the audio permission (see the table below). The names follow the hierarchical property-naming convention. Also, an asterisk can be used to represent all the audio permissions.

The following table lists the possible AudioPermission target names. For each name, the table provides a description of exactly what that permission allows, as well as a discussion of the risks of granting code the permission.

Permission Target Name What the Permission Allows Risks of Allowing this Permission
play Audio playback through the audio device or devices on the system. Allows the application to obtain and manipulate lines and mixers for audio playback (rendering). In some cases use of this permission may affect other applications because the audio from one line may be mixed with other audio being played on the system, or because manipulation of a mixer affects the audio for all lines using that mixer.
record Audio recording through the audio device or devices on the system. Allows the application to obtain and manipulate lines and mixers for audio recording (capture). In some cases use of this permission may affect other applications because manipulation of a mixer affects the audio for all lines using that mixer. This permission can enable an applet or application to eavesdrop on a user.

Author:Kara Kytle
Since:1.3
/** * The <code>AudioPermission</code> class represents access rights to the audio * system resources. An <code>AudioPermission</code> contains a target name * but no actions list; you either have the named permission or you don't. * <p> * The target name is the name of the audio permission (see the table below). * The names follow the hierarchical property-naming convention. Also, an asterisk * can be used to represent all the audio permissions. * <p> * The following table lists the possible <code>AudioPermission</code> target names. * For each name, the table provides a description of exactly what that permission * allows, as well as a discussion of the risks of granting code the permission. * <p> * * <table border=1 cellpadding=5 summary="permission target name, what the permission allows, and associated risks"> * <tr> * <th>Permission Target Name</th> * <th>What the Permission Allows</th> * <th>Risks of Allowing this Permission</th> * </tr> * * <tr> * <td>play</td> * <td>Audio playback through the audio device or devices on the system. * Allows the application to obtain and manipulate lines and mixers for * audio playback (rendering).</td> * <td>In some cases use of this permission may affect other * applications because the audio from one line may be mixed with other audio * being played on the system, or because manipulation of a mixer affects the * audio for all lines using that mixer.</td> *</tr> * * <tr> * <td>record</td> * <td>Audio recording through the audio device or devices on the system. * Allows the application to obtain and manipulate lines and mixers for * audio recording (capture).</td> * <td>In some cases use of this permission may affect other * applications because manipulation of a mixer affects the audio for all lines * using that mixer. * This permission can enable an applet or application to eavesdrop on a user.</td> *</tr> *</table> *<p> * * @author Kara Kytle * @since 1.3 */
/* * (OLD PERMISSIONS TAKEN OUT FOR 1.2 BETA) * * <tr> * <td>playback device access</td> * <td>Direct access to the audio playback device(s), including configuration of the * playback format, volume, and balance, explicit opening and closing of the device, * etc.</td> * <td>Changes the properties of a shared system device and therefore * can affect other applications.</td> * </tr> * * <tr> * <td>playback device override</td> * <td>Manipulation of the audio playback device(s) in a way that directly conflicts * with use by other applications. This includes closing the device while it is in * use by another application, changing the device format while another application * is using it, etc. </td> * <td>Changes the properties of a shared system device and therefore * can affect other applications.</td> * </tr> * * <tr> * <td>record device access</td> * <td>Direct access to the audio recording device(s), including configuration of the * the record format, volume, and balance, explicit opening and closing of the device, * etc.</td> * <td>Changes the properties of a shared system device and therefore * can affect other applications.</td> * </tr> * * <tr> * <td>record device override</td> * <td>Manipulation of the audio recording device(s) in a way that directly conflicts * with use by other applications. This includes closing the device while it is in * use by another application, changing the device format while another application * is using it, etc. </td> * <td>Changes the properties of a shared system device and therefore * can affect other applications.</td> * </tr> * * </table> *<p> * * @author Kara Kytle * @since 1.3 */ /* * The <code>AudioPermission</code> class represents access rights to the audio * system resources. An <code>AudioPermission</code> contains a target name * but no actions list; you either have the named permission or you don't. * <p> * The target name is the name of the audio permission (see the table below). * The names follow the hierarchical property-naming convention. Also, an asterisk * can be used to represent all the audio permissions. * <p> * The following table lists all the possible AudioPermission target names. * For each name, the table provides a description of exactly what that permission * allows, as well as a discussion of the risks of granting code the permission. * <p> * * <table border=1 cellpadding=5> * <tr> * <th>Permission Target Name</th> * <th>What the Permission Allows</th> * <th>Risks of Allowing this Permission</th> * </tr> * * <tr> * <td>play</td> * <td>Audio playback through the audio device or devices on the system.</td> * <td>Allows the application to use a system device. Can affect other applications, * because the result will be mixed with other audio being played on the system.</td> *</tr> * * <tr> * <td>record</td> * <td>Recording audio from the audio device or devices on the system, * commonly through a microphone.</td> * <td>Can enable an applet or application to eavesdrop on a user.</td> * </tr> * * <tr> * <td>playback device access</td> * <td>Direct access to the audio playback device(s), including configuration of the * playback format, volume, and balance, explicit opening and closing of the device, * etc.</td> * <td>Changes the properties of a shared system device and therefore * can affect other applications.</td> * </tr> * * <tr> * <td>playback device override</td> * <td>Manipulation of the audio playback device(s) in a way that directly conflicts * with use by other applications. This includes closing the device while it is in * use by another application, changing the device format while another application * is using it, etc. </td> * <td>Changes the properties of a shared system device and therefore * can affect other applications.</td> * </tr> * * <tr> * <td>record device access</td> * <td>Direct access to the audio recording device(s), including configuration of the * the record format, volume, and balance, explicit opening and closing of the device, * etc.</td> * <td>Changes the properties of a shared system device and therefore * can affect other applications.</td> * </tr> * * <tr> * <td>record device override</td> * <td>Manipulation of the audio recording device(s) in a way that directly conflicts * with use by other applications. This includes closing the device while it is in * use by another application, changing the device format while another application * is using it, etc. </td> * <td>Changes the properties of a shared system device and therefore * can affect other applications.</td> * </tr> * * </table> *<p> * * @author Kara Kytle */ public class AudioPermission extends BasicPermission {
Creates a new AudioPermission object that has the specified symbolic name, such as "play" or "record". An asterisk can be used to indicate all audio permissions.
Params:
  • name – the name of the new AudioPermission
Throws:
/** * Creates a new <code>AudioPermission</code> object that has the specified * symbolic name, such as "play" or "record". An asterisk can be used to indicate * all audio permissions. * @param name the name of the new <code>AudioPermission</code> * * @throws NullPointerException if <code>name</code> is <code>null</code>. * @throws IllegalArgumentException if <code>name</code> is empty. */
public AudioPermission(String name) { super(name); }
Creates a new AudioPermission object that has the specified symbolic name, such as "play" or "record". The actions parameter is currently unused and should be null.
Params:
  • name – the name of the new AudioPermission
  • actions – (unused; should be null)
Throws:
/** * Creates a new <code>AudioPermission</code> object that has the specified * symbolic name, such as "play" or "record". The <code>actions</code> * parameter is currently unused and should be <code>null</code>. * @param name the name of the new <code>AudioPermission</code> * @param actions (unused; should be <code>null</code>) * * @throws NullPointerException if <code>name</code> is <code>null</code>. * @throws IllegalArgumentException if <code>name</code> is empty. */
public AudioPermission(String name, String actions) { super(name, actions); } }