下面列出了org.apache.hadoop.fs.permission.FsPermission#getAclBit ( ) 实例代码,或者点击链接到github查看源代码,也可以在右侧发表评论。
@Override
protected void processPath(PathData item) throws IOException {
out.println("# file: " + item);
out.println("# owner: " + item.stat.getOwner());
out.println("# group: " + item.stat.getGroup());
FsPermission perm = item.stat.getPermission();
if (perm.getStickyBit()) {
out.println("# flags: --" +
(perm.getOtherAction().implies(FsAction.EXECUTE) ? "t" : "T"));
}
AclStatus aclStatus = item.fs.getAclStatus(item.path);
List<AclEntry> entries = perm.getAclBit() ? aclStatus.getEntries()
: Collections.<AclEntry> emptyList();
ScopedAclEntries scopedEntries = new ScopedAclEntries(
AclUtil.getAclFromPermAndEntries(perm, entries));
printAclEntriesForSingleScope(aclStatus, perm,
scopedEntries.getAccessEntries());
printAclEntriesForSingleScope(aclStatus, perm,
scopedEntries.getDefaultEntries());
out.println();
}
@Override
protected void processPath(PathData item) throws IOException {
out.println("# file: " + item);
out.println("# owner: " + item.stat.getOwner());
out.println("# group: " + item.stat.getGroup());
FsPermission perm = item.stat.getPermission();
if (perm.getStickyBit()) {
out.println("# flags: --" +
(perm.getOtherAction().implies(FsAction.EXECUTE) ? "t" : "T"));
}
AclStatus aclStatus = item.fs.getAclStatus(item.path);
List<AclEntry> entries = perm.getAclBit() ? aclStatus.getEntries()
: Collections.<AclEntry> emptyList();
ScopedAclEntries scopedEntries = new ScopedAclEntries(
AclUtil.getAclFromPermAndEntries(perm, entries));
printAclEntriesForSingleScope(aclStatus, perm,
scopedEntries.getAccessEntries());
printAclEntriesForSingleScope(aclStatus, perm,
scopedEntries.getDefaultEntries());
out.println();
}
/** Convert a HdfsFileStatus object to a Json string. */
public static String toJsonString(final HdfsFileStatus status,
boolean includeType) {
if (status == null) {
return null;
}
final Map<String, Object> m = new TreeMap<String, Object>();
m.put("pathSuffix", status.getLocalName());
m.put("type", PathType.valueOf(status));
if (status.isSymlink()) {
m.put("symlink", status.getSymlink());
}
m.put("length", status.getLen());
m.put("owner", status.getOwner());
m.put("group", status.getGroup());
FsPermission perm = status.getPermission();
m.put("permission", toString(perm));
if (perm.getAclBit()) {
m.put("aclBit", true);
}
if (perm.getEncryptedBit()) {
m.put("encBit", true);
}
m.put("accessTime", status.getAccessTime());
m.put("modificationTime", status.getModificationTime());
m.put("blockSize", status.getBlockSize());
m.put("replication", status.getReplication());
m.put("fileId", status.getFileId());
m.put("childrenNum", status.getChildrenNum());
m.put("storagePolicy", status.getStoragePolicy());
ObjectMapper mapper = new ObjectMapper();
try {
return includeType ?
toJsonString(FileStatus.class, m) : mapper.writeValueAsString(m);
} catch (IOException ignored) {
}
return null;
}
/** Convert a AclStatus object to a Json string. */
public static String toJsonString(final AclStatus status) {
if (status == null) {
return null;
}
final Map<String, Object> m = new TreeMap<String, Object>();
m.put("owner", status.getOwner());
m.put("group", status.getGroup());
m.put("stickyBit", status.isStickyBit());
final List<String> stringEntries = new ArrayList<>();
for (AclEntry entry : status.getEntries()) {
stringEntries.add(entry.toString());
}
m.put("entries", stringEntries);
FsPermission perm = status.getPermission();
if (perm != null) {
m.put("permission", toString(perm));
if (perm.getAclBit()) {
m.put("aclBit", true);
}
if (perm.getEncryptedBit()) {
m.put("encBit", true);
}
}
final Map<String, Map<String, Object>> finalMap =
new TreeMap<String, Map<String, Object>>();
finalMap.put(AclStatus.class.getSimpleName(), m);
ObjectMapper mapper = new ObjectMapper();
try {
return mapper.writeValueAsString(finalMap);
} catch (IOException ignored) {
}
return null;
}
/**
* Converts a FileStatus to a CopyListingFileStatus. If preserving ACLs,
* populates the CopyListingFileStatus with the ACLs. If preserving XAttrs,
* populates the CopyListingFileStatus with the XAttrs.
*
* @param fileSystem FileSystem containing the file
* @param fileStatus FileStatus of file
* @param preserveAcls boolean true if preserving ACLs
* @param preserveXAttrs boolean true if preserving XAttrs
* @param preserveRawXAttrs boolean true if preserving raw.* XAttrs
* @throws IOException if there is an I/O error
*/
public static CopyListingFileStatus toCopyListingFileStatus(
FileSystem fileSystem, FileStatus fileStatus, boolean preserveAcls,
boolean preserveXAttrs, boolean preserveRawXAttrs) throws IOException {
CopyListingFileStatus copyListingFileStatus =
new CopyListingFileStatus(fileStatus);
if (preserveAcls) {
FsPermission perm = fileStatus.getPermission();
if (perm.getAclBit()) {
List<AclEntry> aclEntries = fileSystem.getAclStatus(
fileStatus.getPath()).getEntries();
copyListingFileStatus.setAclEntries(aclEntries);
}
}
if (preserveXAttrs || preserveRawXAttrs) {
Map<String, byte[]> srcXAttrs = fileSystem.getXAttrs(fileStatus.getPath());
if (preserveXAttrs && preserveRawXAttrs) {
copyListingFileStatus.setXAttrs(srcXAttrs);
} else {
Map<String, byte[]> trgXAttrs = Maps.newHashMap();
final String rawNS =
StringUtils.toLowerCase(XAttr.NameSpace.RAW.name());
for (Map.Entry<String, byte[]> ent : srcXAttrs.entrySet()) {
final String xattrName = ent.getKey();
if (xattrName.startsWith(rawNS)) {
if (preserveRawXAttrs) {
trgXAttrs.put(xattrName, ent.getValue());
}
} else if (preserveXAttrs) {
trgXAttrs.put(xattrName, ent.getValue());
}
}
copyListingFileStatus.setXAttrs(trgXAttrs);
}
}
return copyListingFileStatus;
}
/** Convert a HdfsFileStatus object to a Json string. */
public static String toJsonString(final HdfsFileStatus status,
boolean includeType) {
if (status == null) {
return null;
}
final Map<String, Object> m = new TreeMap<String, Object>();
m.put("pathSuffix", status.getLocalName());
m.put("type", PathType.valueOf(status));
if (status.isSymlink()) {
m.put("symlink", status.getSymlink());
}
m.put("length", status.getLen());
m.put("owner", status.getOwner());
m.put("group", status.getGroup());
FsPermission perm = status.getPermission();
m.put("permission", toString(perm));
if (perm.getAclBit()) {
m.put("aclBit", true);
}
if (perm.getEncryptedBit()) {
m.put("encBit", true);
}
m.put("accessTime", status.getAccessTime());
m.put("modificationTime", status.getModificationTime());
m.put("blockSize", status.getBlockSize());
m.put("replication", status.getReplication());
m.put("fileId", status.getFileId());
m.put("childrenNum", status.getChildrenNum());
m.put("storagePolicy", status.getStoragePolicy());
ObjectMapper mapper = new ObjectMapper();
try {
return includeType ?
toJsonString(FileStatus.class, m) : mapper.writeValueAsString(m);
} catch (IOException ignored) {
}
return null;
}
/** Convert a AclStatus object to a Json string. */
public static String toJsonString(final AclStatus status) {
if (status == null) {
return null;
}
final Map<String, Object> m = new TreeMap<String, Object>();
m.put("owner", status.getOwner());
m.put("group", status.getGroup());
m.put("stickyBit", status.isStickyBit());
final List<String> stringEntries = new ArrayList<>();
for (AclEntry entry : status.getEntries()) {
stringEntries.add(entry.toString());
}
m.put("entries", stringEntries);
FsPermission perm = status.getPermission();
if (perm != null) {
m.put("permission", toString(perm));
if (perm.getAclBit()) {
m.put("aclBit", true);
}
if (perm.getEncryptedBit()) {
m.put("encBit", true);
}
}
final Map<String, Map<String, Object>> finalMap =
new TreeMap<String, Map<String, Object>>();
finalMap.put(AclStatus.class.getSimpleName(), m);
ObjectMapper mapper = new ObjectMapper();
try {
return mapper.writeValueAsString(finalMap);
} catch (IOException ignored) {
}
return null;
}
/**
* Converts a FileStatus to a CopyListingFileStatus. If preserving ACLs,
* populates the CopyListingFileStatus with the ACLs. If preserving XAttrs,
* populates the CopyListingFileStatus with the XAttrs.
*
* @param fileSystem FileSystem containing the file
* @param fileStatus FileStatus of file
* @param preserveAcls boolean true if preserving ACLs
* @param preserveXAttrs boolean true if preserving XAttrs
* @param preserveRawXAttrs boolean true if preserving raw.* XAttrs
* @throws IOException if there is an I/O error
*/
public static CopyListingFileStatus toCopyListingFileStatus(
FileSystem fileSystem, FileStatus fileStatus, boolean preserveAcls,
boolean preserveXAttrs, boolean preserveRawXAttrs) throws IOException {
CopyListingFileStatus copyListingFileStatus =
new CopyListingFileStatus(fileStatus);
if (preserveAcls) {
FsPermission perm = fileStatus.getPermission();
if (perm.getAclBit()) {
List<AclEntry> aclEntries = fileSystem.getAclStatus(
fileStatus.getPath()).getEntries();
copyListingFileStatus.setAclEntries(aclEntries);
}
}
if (preserveXAttrs || preserveRawXAttrs) {
Map<String, byte[]> srcXAttrs = fileSystem.getXAttrs(fileStatus.getPath());
if (preserveXAttrs && preserveRawXAttrs) {
copyListingFileStatus.setXAttrs(srcXAttrs);
} else {
Map<String, byte[]> trgXAttrs = Maps.newHashMap();
final String rawNS =
StringUtils.toLowerCase(XAttr.NameSpace.RAW.name());
for (Map.Entry<String, byte[]> ent : srcXAttrs.entrySet()) {
final String xattrName = ent.getKey();
if (xattrName.startsWith(rawNS)) {
if (preserveRawXAttrs) {
trgXAttrs.put(xattrName, ent.getValue());
}
} else if (preserveXAttrs) {
trgXAttrs.put(xattrName, ent.getValue());
}
}
copyListingFileStatus.setXAttrs(trgXAttrs);
}
}
return copyListingFileStatus;
}
/**
* Preserve the attributes of the source to the target.
* The method calls {@link #shouldPreserve(FileAttribute)} to check what
* attribute to preserve.
* @param src source to preserve
* @param target where to preserve attributes
* @param preserveRawXAttrs true if raw.* xattrs should be preserved
* @throws IOException if fails to preserve attributes
*/
protected void preserveAttributes(PathData src, PathData target,
boolean preserveRawXAttrs)
throws IOException {
if (shouldPreserve(FileAttribute.TIMESTAMPS)) {
target.fs.setTimes(
target.path,
src.stat.getModificationTime(),
src.stat.getAccessTime());
}
if (shouldPreserve(FileAttribute.OWNERSHIP)) {
target.fs.setOwner(
target.path,
src.stat.getOwner(),
src.stat.getGroup());
}
if (shouldPreserve(FileAttribute.PERMISSION) ||
shouldPreserve(FileAttribute.ACL)) {
target.fs.setPermission(
target.path,
src.stat.getPermission());
}
if (shouldPreserve(FileAttribute.ACL)) {
FsPermission perm = src.stat.getPermission();
if (perm.getAclBit()) {
List<AclEntry> srcEntries =
src.fs.getAclStatus(src.path).getEntries();
List<AclEntry> srcFullEntries =
AclUtil.getAclFromPermAndEntries(perm, srcEntries);
target.fs.setAcl(target.path, srcFullEntries);
}
}
final boolean preserveXAttrs = shouldPreserve(FileAttribute.XATTR);
if (preserveXAttrs || preserveRawXAttrs) {
Map<String, byte[]> srcXAttrs = src.fs.getXAttrs(src.path);
if (srcXAttrs != null) {
Iterator<Entry<String, byte[]>> iter = srcXAttrs.entrySet().iterator();
while (iter.hasNext()) {
Entry<String, byte[]> entry = iter.next();
final String xattrName = entry.getKey();
if (xattrName.startsWith(RAW) || preserveXAttrs) {
target.fs.setXAttr(target.path, entry.getKey(), entry.getValue());
}
}
}
}
}
/**
* Preserve the attributes of the source to the target.
* The method calls {@link #shouldPreserve(FileAttribute)} to check what
* attribute to preserve.
* @param src source to preserve
* @param target where to preserve attributes
* @param preserveRawXAttrs true if raw.* xattrs should be preserved
* @throws IOException if fails to preserve attributes
*/
protected void preserveAttributes(PathData src, PathData target,
boolean preserveRawXAttrs)
throws IOException {
if (shouldPreserve(FileAttribute.TIMESTAMPS)) {
target.fs.setTimes(
target.path,
src.stat.getModificationTime(),
src.stat.getAccessTime());
}
if (shouldPreserve(FileAttribute.OWNERSHIP)) {
target.fs.setOwner(
target.path,
src.stat.getOwner(),
src.stat.getGroup());
}
if (shouldPreserve(FileAttribute.PERMISSION) ||
shouldPreserve(FileAttribute.ACL)) {
target.fs.setPermission(
target.path,
src.stat.getPermission());
}
if (shouldPreserve(FileAttribute.ACL)) {
FsPermission perm = src.stat.getPermission();
if (perm.getAclBit()) {
List<AclEntry> srcEntries =
src.fs.getAclStatus(src.path).getEntries();
List<AclEntry> srcFullEntries =
AclUtil.getAclFromPermAndEntries(perm, srcEntries);
target.fs.setAcl(target.path, srcFullEntries);
}
}
final boolean preserveXAttrs = shouldPreserve(FileAttribute.XATTR);
if (preserveXAttrs || preserveRawXAttrs) {
Map<String, byte[]> srcXAttrs = src.fs.getXAttrs(src.path);
if (srcXAttrs != null) {
Iterator<Entry<String, byte[]>> iter = srcXAttrs.entrySet().iterator();
while (iter.hasNext()) {
Entry<String, byte[]> entry = iter.next();
final String xattrName = entry.getKey();
if (xattrName.startsWith(RAW) || preserveXAttrs) {
target.fs.setXAttr(target.path, entry.getKey(), entry.getValue());
}
}
}
}
}