Example usage for java.security AccessController doPrivileged

Introduction

In this page you can find the example usage for java.security AccessController doPrivileged.

Prototype

@CallerSensitive
public static <T> T doPrivileged(PrivilegedExceptionAction<T> action) throws PrivilegedActionException

Source Link

Document

Performs the specified PrivilegedExceptionAction with privileges enabled.

Usage

From source file:javazoom.jlgui.player.amp.PlayerApplet.java

/**
 * Simulates "Previous" selection.//from  w w w  . j  av  a2 s.  co  m
 */
public void pressPrevious() {
    AccessController.doPrivileged(new PrivilegedAction() {
        public Object run() {
            acPrevious.fireEvent();
            return null;
        }
    });
}

From source file:javazoom.jlgui.player.amp.PlayerApplet.java

/**
 * Simulates "Eject" selection./*from   w  ww.j a  va  2  s  .c  o m*/
 */
public void pressEject() {
    AccessController.doPrivileged(new PrivilegedAction() {
        public Object run() {
            acEject.fireEvent();
            return null;
        }
    });
}

From source file:javazoom.jlgui.player.amp.PlayerApplet.java

/**
 * Load skin.//w  w  w . j a  v a 2s.c  om
 */
public void loadMySkin(final String skn) {
    AccessController.doPrivileged(new PrivilegedAction() {
        public Object run() {
            loadSkin(skn);
            return null;
        }
    });
}

From source file:javazoom.jlgui.player.amp.PlayerApplet.java

/**
 * Reset Playlist.//from ww w .j  av a 2  s  .co m
 */
public void resetMyPlaylist() {
    AccessController.doPrivileged(new PrivilegedAction() {
        public Object run() {
            resetPlaylist();
            return null;
        }
    });
}

From source file:javazoom.jlgui.player.amp.PlayerApplet.java

/**
 * Load a playlist./*from  w  ww. ja  v  a 2  s .  co  m*/
 * @param playlistName
 */
public void loadMyPlaylist(final String playlistName) {
    AccessController.doPrivileged(new PrivilegedAction() {
        public Object run() {
            loadPlaylist(playlistName);
            return null;
        }
    });
}

From source file:javazoom.jlgui.player.amp.PlayerApplet.java

/**
 * Simulates "Shuffle" selection.//from w  w w.  j  av  a 2 s  . com
 */
public void pressShuffle() {
    final MouseEvent smevt = new MouseEvent(this, MouseEvent.MOUSE_RELEASED, 0, 1, 0, 0, 1, false);
    AccessController.doPrivileged(new PrivilegedAction() {
        public Object run() {
            acShuffle.processEvent(smevt);
            return null;
        }
    });
}

From source file:javazoom.jlgui.player.amp.PlayerApplet.java

/**
 * Simulates "Repeat" selection.//from  ww  w .  java 2  s . c  o  m
 */
public void pressRepeat() {
    final MouseEvent rmevt = new MouseEvent(this, MouseEvent.MOUSE_RELEASED, 0, 1, 0, 0, 1, false);
    AccessController.doPrivileged(new PrivilegedAction() {
        public Object run() {
            acRepeat.processEvent(rmevt);
            return null;
        }
    });
}

From source file:org.apache.openjpa.enhance.PCEnhancer.java

/**
 * Return the method of the given owner type matching the given criteria.
 *
 * @param type the type of state being passed
 * @param prefix the prefix of the method to call; all methods
 * end in '[state type]Field'; only the prefix varies
 * @param get true if receiving information from the
 * owner, false if passing it to the owner
 * @param haspc true if the pc is passed as an extra argument
 * @param curValue true if the current state value is passed to
 * the owner as an extra argument/*from w w w  . j a va 2s.  co m*/
 */
private Method getMethod(Class owner, Class type, String prefix, boolean get, boolean haspc, boolean curValue)
        throws NoSuchMethodException {
    // all methods end in [field type]Field, where the field type
    // can be any of the primitve types (but capitalized), 'String',
    // or 'Object'; figure out what type to use
    String typeName = type.getName();
    if (type.isPrimitive())
        typeName = typeName.substring(0, 1).toUpperCase(Locale.ENGLISH) + typeName.substring(1);
    else if (type.equals(String.class))
        typeName = "String";
    else {
        typeName = "Object";
        type = Object.class;
    }

    // the field index is always passed as an arg; the pc instance and
    // the current value may be passed; if setting the new value is
    // also passed
    List plist = new ArrayList(4);
    if (haspc)
        plist.add(PCTYPE);
    plist.add(int.class);
    if (!get || curValue)
        plist.add(type);
    if (!get && curValue) {
        plist.add(type);
        plist.add(int.class);
    }

    // use reflection to return the right method
    String name = prefix + typeName + "Field";
    Class[] params = (Class[]) plist.toArray(new Class[plist.size()]);

    try {
        return AccessController.doPrivileged(J2DoPrivHelper.getDeclaredMethodAction(owner, name, params));
    } catch (PrivilegedActionException pae) {
        throw (NoSuchMethodException) pae.getException();
    }
}

From source file:edu.ku.brc.af.ui.forms.ViewFactory.java

/**
 * Returns the singleton for the ViewSetMgr.
 * @return the singleton for the ViewSetMgr
 *///  w w  w  . j a  v  a2  s  .com
public static ViewFactory getInstance() {
    if (instance != null) {
        return instance;

    }
    // else
    String factoryNameStr = AccessController.doPrivileged(new PrivilegedAction<String>() {
        public String run() {
            return System.getProperty(factoryName);
        }
    });

    if (factoryNameStr != null) {
        try {
            instance = (ViewFactory) Class.forName(factoryNameStr).newInstance();
            return instance;

        } catch (Exception e) {
            edu.ku.brc.af.core.UsageTracker.incrHandledUsageCount();
            edu.ku.brc.exceptions.ExceptionTracker.getInstance().capture(AppContextMgr.class, e);
            InternalError error = new InternalError("Can't instantiate ViewFactory factory " + factoryNameStr); //$NON-NLS-1$
            error.initCause(e);
            throw error;
        }
    }
    return instance = new ViewFactory();
}

From source file:org.apache.openjpa.enhance.PCEnhancer.java

/**
 * Adds a custom writeObject method that delegates to the
 * {@link ObjectOutputStream#defaultWriteObject} method,
 * but only after calling the internal <code>pcSerializing</code> method.
 *//* w ww  .ja  v a2 s. c om*/
private void modifyWriteObjectMethod(BCMethod method, boolean full) {
    Code code = method.getCode(true);
    code.beforeFirst();

    // bool clear = pcSerializing ();
    loadManagedInstance(code, false);
    code.invokevirtual().setMethod(PRE + "Serializing", boolean.class, null);
    int clear = code.getNextLocalsIndex();
    code.istore().setLocal(clear);

    if (full) {
        // out.defaultWriteObject ();
        code.aload().setParam(0);
        code.invokevirtual().setMethod(ObjectOutputStream.class, "defaultWriteObject", void.class, null);
        code.vreturn();
    }

    Instruction tmplate = (AccessController.doPrivileged(J2DoPrivHelper.newCodeAction())).vreturn();
    JumpInstruction toret;
    Instruction ret;
    code.beforeFirst();
    while (code.searchForward(tmplate)) {
        ret = code.previous();
        // if (clear) pcSetDetachedState (null);
        code.iload().setLocal(clear);
        toret = code.ifeq();
        loadManagedInstance(code, false);
        code.constant().setNull();
        code.invokevirtual().setMethod(PRE + "SetDetachedState", void.class, new Class[] { Object.class });
        toret.setTarget(ret);
        code.next(); // jump over return
    }
    code.calculateMaxStack();
    code.calculateMaxLocals();
}