java.security.PermissionCollection#elements ( )源码实例Demo

/**
 * Prints warning message if installed Policy is the default Policy
 * implementation and globally granted permissions do not include
 * AllPermission or any ExecPermissions/ExecOptionPermissions.
 */
static void checkConfiguration() {
    Policy policy =
        AccessController.doPrivileged(new PrivilegedAction<Policy>() {
            public Policy run() {
                return Policy.getPolicy();
            }
        });
    if (!(policy instanceof PolicyFile)) {
        return;
    }
    PermissionCollection perms = getExecPermissions();
    for (Enumeration<Permission> e = perms.elements();
         e.hasMoreElements();)
    {
        Permission p = e.nextElement();
        if (p instanceof AllPermission ||
            p instanceof ExecPermission ||
            p instanceof ExecOptionPermission)
        {
            return;
        }
    }
    System.err.println(getTextResource("rmid.exec.perms.inadequate"));
}
 

/**
 * Prints warning message if installed Policy is the default Policy
 * implementation and globally granted permissions do not include
 * AllPermission or any ExecPermissions/ExecOptionPermissions.
 */
static void checkConfiguration() {
    Policy policy =
        AccessController.doPrivileged(new PrivilegedAction<Policy>() {
            public Policy run() {
                return Policy.getPolicy();
            }
        });
    if (!(policy instanceof PolicyFile)) {
        return;
    }
    PermissionCollection perms = getExecPermissions();
    for (Enumeration<Permission> e = perms.elements();
         e.hasMoreElements();)
    {
        Permission p = e.nextElement();
        if (p instanceof AllPermission ||
            p instanceof ExecPermission ||
            p instanceof ExecOptionPermission)
        {
            return;
        }
    }
    System.err.println(getTextResource("rmid.exec.perms.inadequate"));
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

public PermissionsBuilder addAll(PermissionCollection col) {
    if (col != null) {
        for (Enumeration<Permission> e = col.elements(); e.hasMoreElements(); ) {
            perms.add(e.nextElement());
        }
    }
    return this;
}
 

/**
 * Removes permissions from <code>toBeChecked</code> that are implied by
 * <code>permission</code>.
 *
 * @param toBeChecked the permissions that are to be checked and possibly culled
 * @param permission  the permission that is to be used for culling
 * @return the culled set of permissions that are not implied by <code>permission</code>
 */
private PermissionCollection cullPermissions(final PermissionCollection toBeChecked, final Permission permission) {
    final PermissionCollection result = DelegatePermissionCollection.getPermissionCollection();

    for (final Enumeration e = toBeChecked.elements(); e.hasMoreElements(); ) {
        final Permission test = (Permission) e.nextElement();
        if (!permission.implies(test)) {
            result.add(test);
        }
    }

    return result;
}
 

void addToUncheckedPolicy(PermissionCollection permissions)
   throws PolicyContextException
{
   Enumeration<Permission> iter = permissions.elements();
   while( iter.hasMoreElements() )
   {
      Permission p = iter.nextElement();
      uncheckedPermissions.add(p);
   }
}
 

void addToExcludedPolicy(PermissionCollection permissions)
   throws PolicyContextException
{
   Enumeration<Permission> iter = permissions.elements();
   while( iter.hasMoreElements() )
   {
      Permission p = iter.nextElement();
      excludedPermissions.add(p);
   }
}
 

private AuthorizationResult authorize(PermissionCollection userPermissions, PermissionCollection requiredPermissions) {

        final Enumeration<Permission> enumeration = requiredPermissions.elements();
        while (enumeration.hasMoreElements()){
            Permission requiredPermission = enumeration.nextElement();
            if (!userPermissions.implies(requiredPermission)) {
                return new AuthorizationResult(AuthorizationResult.Decision.DENY,
                            new ModelNode(ControllerLogger.ROOT_LOGGER.permissionDenied()));
            }
        }
        return AuthorizationResult.PERMITTED;
    }
 

public void addToExcludedPolicy(final PermissionCollection permissions) throws PolicyContextException {
    if (state != OPEN) {
        throw new UnsupportedOperationException("Not in an open state");
    }

    final Enumeration e = permissions.elements();
    while (e.hasMoreElements()) {
        addToExcludedPolicy((Permission) e.nextElement());
    }
}
 

public static void main(String[] args) throws Exception {

        int testFail = 0;

        TestPermission perm = new TestPermission("foo");
        PermissionCollection perms = perm.newPermissionCollection();

        // test 1
        System.out.println("test 1: add throws IllegalArgumentExc");
        try {
            perms.add(new SecurityPermission("createAccessControlContext"));
            System.err.println("Expected IllegalArgumentException");
            testFail++;
        } catch (IllegalArgumentException iae) {}

        // test 2
        System.out.println("test 2: implies returns false for wrong class");
        if (perms.implies(new SecurityPermission("getPolicy"))) {
            System.err.println("Expected false, returned true");
            testFail++;
        }

        // test 3
        System.out.println("test 3: implies returns true for match on name");
        perms.add(new TestPermission("foo"));
        if (!perms.implies(new TestPermission("foo"))) {
            System.err.println("Expected true, returned false");
            testFail++;
        }

        // test 4
        System.out.println("test 4: implies returns true for wildcard match");
        perms.add(new TestPermission("bar.*"));
        if (!perms.implies(new TestPermission("bar.foo"))) {
            System.err.println("Expected true, returned false");
            testFail++;
        }

        // test 5
        System.out.println
            ("test 5: implies returns false for invalid wildcard");
        perms.add(new TestPermission("baz*"));
        if (perms.implies(new TestPermission("baz.foo"))) {
            System.err.println("Expected false, returned true");
            testFail++;
        }

        // test 6
        System.out.println
            ("test 6: implies returns true for deep wildcard match");
        if (!perms.implies(new TestPermission("bar.foo.baz"))) {
            System.err.println("Expected true, returned false");
            testFail++;
        }

        // test 7
        System.out.println
            ("test 7: implies returns true for all wildcard match");
        perms.add(new TestPermission("*"));
        if (!perms.implies(new TestPermission("yes"))) {
            System.err.println("Expected true, returned false");
            testFail++;
        }

        // test 8
        System.out.println("test 8: elements returns correct number of perms");
        int numPerms = 0;
        Enumeration<Permission> e = perms.elements();
        while (e.hasMoreElements()) {
            numPerms++;
            System.out.println(e.nextElement());
        }
        if (numPerms != 4) {
            System.err.println("Expected 4, got " + numPerms);
            testFail++;
        }

        if (testFail > 0) {
            throw new Exception(testFail + " test(s) failed");
        }
    }
 

public static void main(String[] args) throws Exception {

        int testFail = 0;

        DelegationPermission perm = new DelegationPermission(FOO + " " + TGT);
        PermissionCollection perms = perm.newPermissionCollection();

        // test 1
        System.out.println
            ("test 1: add throws IllegalArgException for wrong perm type");
        try {
            perms.add(new SecurityPermission("createAccessControlContext"));
            System.err.println("Expected IllegalArgumentException");
            testFail++;
        } catch (IllegalArgumentException iae) {}

        // test 2
        System.out.println("test 2: implies returns false for wrong perm type");
        if (perms.implies(new SecurityPermission("getPolicy"))) {
            System.err.println("Expected false, returned true");
            testFail++;
        }

        // test 3
        System.out.println("test 3: implies returns true for match on name");
        perms.add(new DelegationPermission(FOO + " " + TGT));
        if (!perms.implies(new DelegationPermission(FOO + " " + TGT))) {
            System.err.println("Expected true, returned false");
            testFail++;
        }

        // test 4
        System.out.println
            ("test 4: implies returns false for non-match on name");
        if (perms.implies(new DelegationPermission(BAR + " " + TGT))) {
            System.err.println("Expected false, returned true");
            testFail++;
        }

        // test 5
        System.out.println("test 5: elements returns correct number of perms");
        int numPerms = 0;
        Enumeration<Permission> e = perms.elements();
        while (e.hasMoreElements()) {
            numPerms++;
            System.out.println(e.nextElement());
        }
        if (numPerms != 1) {
            System.err.println("Expected 1, got " + numPerms);
            testFail++;
        }

        if (testFail > 0) {
            throw new Exception(testFail + " test(s) failed");
        }
    }