本文整理汇总了Java中com.sun.jmx.remote.util.CacheMap类的典型用法代码示例。如果您正苦于以下问题：Java CacheMap类的具体用法？Java CacheMap怎么用？Java CacheMap使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
CacheMap类属于com.sun.jmx.remote.util包，在下文中一共展示了CacheMap类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: delegatedContext
import com.sun.jmx.remote.util.CacheMap; //导入依赖的package包/类
public synchronized AccessControlContext
delegatedContext(AccessControlContext authenticatedACC,
Subject delegatedSubject,
boolean removeCallerContext)
throws SecurityException {
if (principalsCache == null || accCache == null) {
principalsCache =
new CacheMap<Subject, Principal[]>(PRINCIPALS_CACHE_SIZE);
accCache =
new CacheMap<Subject, AccessControlContext>(ACC_CACHE_SIZE);
}
// Retrieve the principals for the given
// delegated subject from the cache
//
Principal[] delegatedPrincipals = principalsCache.get(delegatedSubject);
// Convert the set of principals stored in the
// delegated subject into an array of principals
// and store it in the cache
//
if (delegatedPrincipals == null) {
delegatedPrincipals =
delegatedSubject.getPrincipals().toArray(new Principal[0]);
principalsCache.put(delegatedSubject, delegatedPrincipals);
}
// Retrieve the access control context for the
// given delegated subject from the cache
//
AccessControlContext delegatedACC = accCache.get(delegatedSubject);
// Build the access control context to be used
// when executing code as the delegated subject
// and store it in the cache
//
if (delegatedACC == null) {
if (removeCallerContext) {
delegatedACC =
JMXSubjectDomainCombiner.getDomainCombinerContext(
delegatedSubject);
} else {
delegatedACC =
JMXSubjectDomainCombiner.getContext(delegatedSubject);
}
accCache.put(delegatedSubject, delegatedACC);
}
// Check if the subject delegation permission allows the
// authenticated subject to assume the identity of each
// principal in the delegated subject
//
final Principal[] dp = delegatedPrincipals;
PrivilegedAction<Void> action =
new PrivilegedAction<Void>() {
public Void run() {
for (int i = 0 ; i < dp.length ; i++) {
final String pname =
dp[i].getClass().getName() + "." + dp[i].getName();
Permission sdp =
new SubjectDelegationPermission(pname);
AccessController.checkPermission(sdp);
}
return null;
}
};
AccessController.doPrivileged(action, authenticatedACC);
return delegatedACC;
}
示例2: delegatedContext
import com.sun.jmx.remote.util.CacheMap; //导入依赖的package包/类
public synchronized AccessControlContext
delegatedContext(AccessControlContext authenticatedACC,
Subject delegatedSubject,
boolean removeCallerContext)
throws SecurityException {
if (System.getSecurityManager() != null && authenticatedACC == null) {
throw new SecurityException("Illegal AccessControlContext: null");
}
if (principalsCache == null || accCache == null) {
principalsCache =
new CacheMap<>(PRINCIPALS_CACHE_SIZE);
accCache =
new CacheMap<>(ACC_CACHE_SIZE);
}
// Retrieve the principals for the given
// delegated subject from the cache
//
Principal[] delegatedPrincipals = principalsCache.get(delegatedSubject);
// Convert the set of principals stored in the
// delegated subject into an array of principals
// and store it in the cache
//
if (delegatedPrincipals == null) {
delegatedPrincipals =
delegatedSubject.getPrincipals().toArray(new Principal[0]);
principalsCache.put(delegatedSubject, delegatedPrincipals);
}
// Retrieve the access control context for the
// given delegated subject from the cache
//
AccessControlContext delegatedACC = accCache.get(delegatedSubject);
// Build the access control context to be used
// when executing code as the delegated subject
// and store it in the cache
//
if (delegatedACC == null) {
if (removeCallerContext) {
delegatedACC =
JMXSubjectDomainCombiner.getDomainCombinerContext(
delegatedSubject);
} else {
delegatedACC =
JMXSubjectDomainCombiner.getContext(delegatedSubject);
}
accCache.put(delegatedSubject, delegatedACC);
}
// Check if the subject delegation permission allows the
// authenticated subject to assume the identity of each
// principal in the delegated subject
//
final Principal[] dp = delegatedPrincipals;
final Collection<Permission> permissions = new ArrayList<>(dp.length);
for(Principal p : dp) {
final String pname = p.getClass().getName() + "." + p.getName();
permissions.add(new SubjectDelegationPermission(pname));
}
PrivilegedAction<Void> action =
new PrivilegedAction<Void>() {
public Void run() {
for (Permission sdp : permissions) {
AccessController.checkPermission(sdp);
}
return null;
}
};
AccessController.doPrivileged(action, authenticatedACC);
return delegatedACC;
}