本文整理匯總了Java中javax.security.auth.Subject.isReadOnly方法的典型用法代碼示例。如果您正苦於以下問題：Java Subject.isReadOnly方法的具體用法？Java Subject.isReadOnly怎麽用？Java Subject.isReadOnly使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類javax.security.auth.Subject的用法示例。
在下文中一共展示了Subject.isReadOnly方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: getSubjectPrincipals
import javax.security.auth.Subject; //導入方法依賴的package包/類
/**
* Retrieves the {@linkplain Subject} principals
* @param subject The subject
* @return If the {@code Subject} is immutable it will return the principals directly.
* If the {@code Subject} is mutable it will create an unmodifiable copy.
*/
private static Collection<Principal> getSubjectPrincipals(Subject subject) {
if (subject.isReadOnly()) {
return subject.getPrincipals();
}
List<Principal> principals = Arrays.asList(subject.getPrincipals().toArray(new Principal[0]));
return Collections.unmodifiableList(principals);
}
示例2: getTicketFromSubjectAndTgs
import javax.security.auth.Subject; //導入方法依賴的package包/類
/**
* Retrieve the service ticket for serverPrincipal from caller's Subject
* or from Subject obtained by logging in, or if not found, via the
* Ticket Granting Service using the TGT obtained from the Subject.
*
* Caller must have permission to:
* - access and update Subject's private credentials
* - create LoginContext
* - read the auth.login.defaultCallbackHandler security property
*
* NOTE: This method is used by JSSE Kerberos Cipher Suites
*/
public static KerberosTicket getTicketFromSubjectAndTgs(GSSCaller caller,
String clientPrincipal, String serverPrincipal, String tgsPrincipal,
AccessControlContext acc)
throws LoginException, KrbException, IOException {
// 1. Try to find service ticket in acc subject
Subject accSubj = Subject.getSubject(acc);
KerberosTicket ticket = SubjectComber.find(accSubj,
serverPrincipal, clientPrincipal, KerberosTicket.class);
if (ticket != null) {
return ticket; // found it
}
Subject loginSubj = null;
if (!GSSUtil.useSubjectCredsOnly(caller)) {
// 2. Try to get ticket from login
try {
loginSubj = GSSUtil.login(caller, GSSUtil.GSS_KRB5_MECH_OID);
ticket = SubjectComber.find(loginSubj,
serverPrincipal, clientPrincipal, KerberosTicket.class);
if (ticket != null) {
return ticket; // found it
}
} catch (LoginException e) {
// No login entry to use
// ignore and continue
}
}
// Service ticket not found in subject or login
// Try to get TGT to acquire service ticket
// 3. Try to get TGT from acc subject
KerberosTicket tgt = SubjectComber.find(accSubj,
tgsPrincipal, clientPrincipal, KerberosTicket.class);
boolean fromAcc;
if (tgt == null && loginSubj != null) {
// 4. Try to get TGT from login subject
tgt = SubjectComber.find(loginSubj,
tgsPrincipal, clientPrincipal, KerberosTicket.class);
fromAcc = false;
} else {
fromAcc = true;
}
// 5. Try to get service ticket using TGT
if (tgt != null) {
Credentials tgtCreds = ticketToCreds(tgt);
Credentials serviceCreds = Credentials.acquireServiceCreds(
serverPrincipal, tgtCreds);
if (serviceCreds != null) {
ticket = credsToTicket(serviceCreds);
// Store service ticket in acc's Subject
if (fromAcc && accSubj != null && !accSubj.isReadOnly()) {
accSubj.getPrivateCredentials().add(ticket);
}
}
}
return ticket;
}