本文整理汇总了Java中org.apache.hadoop.fs.permission.ScopedAclEntries.getAccessEntries方法的典型用法代码示例。如果您正苦于以下问题:Java ScopedAclEntries.getAccessEntries方法的具体用法?Java ScopedAclEntries.getAccessEntries怎么用?Java ScopedAclEntries.getAccessEntries使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.fs.permission.ScopedAclEntries
的用法示例。
在下文中一共展示了ScopedAclEntries.getAccessEntries方法的4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: copyDefaultsIfNeeded
import org.apache.hadoop.fs.permission.ScopedAclEntries; //导入方法依赖的package包/类
/**
* Adds unspecified default entries by copying permissions from the
* corresponding access entries.
*
* @param aclBuilder ArrayList<AclEntry> containing entries to build
*/
private static void copyDefaultsIfNeeded(List<AclEntry> aclBuilder) {
Collections.sort(aclBuilder, ACL_ENTRY_COMPARATOR);
ScopedAclEntries scopedEntries = new ScopedAclEntries(aclBuilder);
if (!scopedEntries.getDefaultEntries().isEmpty()) {
List<AclEntry> accessEntries = scopedEntries.getAccessEntries();
List<AclEntry> defaultEntries = scopedEntries.getDefaultEntries();
List<AclEntry> copiedEntries = Lists.newArrayListWithCapacity(3);
for (AclEntryType type: EnumSet.of(USER, GROUP, OTHER)) {
AclEntry defaultEntryKey = new AclEntry.Builder().setScope(DEFAULT)
.setType(type).build();
int defaultEntryIndex = Collections.binarySearch(defaultEntries,
defaultEntryKey, ACL_ENTRY_COMPARATOR);
if (defaultEntryIndex < 0) {
AclEntry accessEntryKey = new AclEntry.Builder().setScope(ACCESS)
.setType(type).build();
int accessEntryIndex = Collections.binarySearch(accessEntries,
accessEntryKey, ACL_ENTRY_COMPARATOR);
if (accessEntryIndex >= 0) {
copiedEntries.add(new AclEntry.Builder()
.setScope(DEFAULT)
.setType(type)
.setPermission(accessEntries.get(accessEntryIndex).getPermission())
.build());
}
}
}
// Add all copied entries when done to prevent potential issues with binary
// search on a modified aclBulider during the main loop.
aclBuilder.addAll(copiedEntries);
}
}
示例2: checkMaxEntries
import org.apache.hadoop.fs.permission.ScopedAclEntries; //导入方法依赖的package包/类
private static void checkMaxEntries(ScopedAclEntries scopedEntries)
throws AclException {
List<AclEntry> accessEntries = scopedEntries.getAccessEntries();
List<AclEntry> defaultEntries = scopedEntries.getDefaultEntries();
if (accessEntries.size() > MAX_ENTRIES) {
throw new AclException("Invalid ACL: ACL has " + accessEntries.size()
+ " access entries, which exceeds maximum of " + MAX_ENTRIES + ".");
}
if (defaultEntries.size() > MAX_ENTRIES) {
throw new AclException("Invalid ACL: ACL has " + defaultEntries.size()
+ " default entries, which exceeds maximum of " + MAX_ENTRIES + ".");
}
}
示例3: readINodeLogicalAcl
import org.apache.hadoop.fs.permission.ScopedAclEntries; //导入方法依赖的package包/类
/**
* Reads the existing ACL of an inode. This method always returns the full
* logical ACL of the inode after reading relevant data from the inode's
* {@link FsPermission} and {@link AclFeature}. Note that every inode
* logically has an ACL, even if no ACL has been set explicitly. If the inode
* does not have an extended ACL, then the result is a minimal ACL consising of
* exactly 3 entries that correspond to the owner, group and other permissions.
* This method always reads the inode's current state and does not support
* querying by snapshot ID. This is because the method is intended to support
* ACL modification APIs, which always apply a delta on top of current state.
*
* @param inode INode to read
* @return List<AclEntry> containing all logical inode ACL entries
*/
public static List<AclEntry> readINodeLogicalAcl(INode inode) {
FsPermission perm = inode.getFsPermission();
AclFeature f = inode.getAclFeature();
if (f == null) {
return AclUtil.getMinimalAcl(perm);
}
final List<AclEntry> existingAcl;
// Split ACL entries stored in the feature into access vs. default.
List<AclEntry> featureEntries = getEntriesFromAclFeature(f);
ScopedAclEntries scoped = new ScopedAclEntries(featureEntries);
List<AclEntry> accessEntries = scoped.getAccessEntries();
List<AclEntry> defaultEntries = scoped.getDefaultEntries();
// Pre-allocate list size for the explicit entries stored in the feature
// plus the 3 implicit entries (owner, group and other) from the permission
// bits.
existingAcl = Lists.newArrayListWithCapacity(featureEntries.size() + 3);
if (!accessEntries.isEmpty()) {
// Add owner entry implied from user permission bits.
existingAcl.add(new AclEntry.Builder().setScope(AclEntryScope.ACCESS)
.setType(AclEntryType.USER).setPermission(perm.getUserAction())
.build());
// Next add all named user and group entries taken from the feature.
existingAcl.addAll(accessEntries);
// Add mask entry implied from group permission bits.
existingAcl.add(new AclEntry.Builder().setScope(AclEntryScope.ACCESS)
.setType(AclEntryType.MASK).setPermission(perm.getGroupAction())
.build());
// Add other entry implied from other permission bits.
existingAcl.add(new AclEntry.Builder().setScope(AclEntryScope.ACCESS)
.setType(AclEntryType.OTHER).setPermission(perm.getOtherAction())
.build());
} else {
// It's possible that there is a default ACL but no access ACL. In this
// case, add the minimal access ACL implied by the permission bits.
existingAcl.addAll(AclUtil.getMinimalAcl(perm));
}
// Add all default entries after the access entries.
existingAcl.addAll(defaultEntries);
// The above adds entries in the correct order, so no need to sort here.
return existingAcl;
}
示例4: readINodeLogicalAcl
import org.apache.hadoop.fs.permission.ScopedAclEntries; //导入方法依赖的package包/类
/**
* Reads the existing ACL of an inode. This method always returns the full
* logical ACL of the inode after reading relevant data from the inode's
* {@link FsPermission} and {@link AclFeature}. Note that every inode
* logically has an ACL, even if no ACL has been set explicitly. If the inode
* does not have an extended ACL, then the result is a minimal ACL consising of
* exactly 3 entries that correspond to the owner, group and other permissions.
* This method always reads the inode's current state and does not support
* querying by snapshot ID. This is because the method is intended to support
* ACL modification APIs, which always apply a delta on top of current state.
*
* @param inode INode to read
* @return List<AclEntry> containing all logical inode ACL entries
*/
public static List<AclEntry> readINodeLogicalAcl(INode inode) {
FsPermission perm = inode.getFsPermission();
AclFeature f = inode.getAclFeature();
if (f == null) {
return AclUtil.getMinimalAcl(perm);
}
final List<AclEntry> existingAcl;
// Split ACL entries stored in the feature into access vs. default.
List<AclEntry> featureEntries = f.getEntries();
ScopedAclEntries scoped = new ScopedAclEntries(featureEntries);
List<AclEntry> accessEntries = scoped.getAccessEntries();
List<AclEntry> defaultEntries = scoped.getDefaultEntries();
// Pre-allocate list size for the explicit entries stored in the feature
// plus the 3 implicit entries (owner, group and other) from the permission
// bits.
existingAcl = Lists.newArrayListWithCapacity(featureEntries.size() + 3);
if (!accessEntries.isEmpty()) {
// Add owner entry implied from user permission bits.
existingAcl.add(new AclEntry.Builder().setScope(AclEntryScope.ACCESS)
.setType(AclEntryType.USER).setPermission(perm.getUserAction())
.build());
// Next add all named user and group entries taken from the feature.
existingAcl.addAll(accessEntries);
// Add mask entry implied from group permission bits.
existingAcl.add(new AclEntry.Builder().setScope(AclEntryScope.ACCESS)
.setType(AclEntryType.MASK).setPermission(perm.getGroupAction())
.build());
// Add other entry implied from other permission bits.
existingAcl.add(new AclEntry.Builder().setScope(AclEntryScope.ACCESS)
.setType(AclEntryType.OTHER).setPermission(perm.getOtherAction())
.build());
} else {
// It's possible that there is a default ACL but no access ACL. In this
// case, add the minimal access ACL implied by the permission bits.
existingAcl.addAll(AclUtil.getMinimalAcl(perm));
}
// Add all default entries after the access entries.
existingAcl.addAll(defaultEntries);
// The above adds entries in the correct order, so no need to sort here.
return existingAcl;
}