HADOOP-10887. Add XAttrs to ViewFs and make XAttrs + ViewFileSystem internal dir behavior consistent. Contributed by Stephen Chu.
git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1612951 13f79535-47bb-0310-9956-ffa450edef68
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@ -452,6 +452,9 @@ Release 2.6.0 - UNRELEASED
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HADOOP-10855. Allow Text to be read with a known Length. (todd)
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HADOOP-10887. Add XAttrs to ViewFs and make XAttrs + ViewFileSystem
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internal dir behavior consistent. (Stephen Chu via wang)
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OPTIMIZATIONS
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BUG FIXES
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@ -2484,4 +2484,33 @@ public Void next(final AbstractFileSystem fs, final Path p)
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}
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}.resolve(this, absF);
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}
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/**
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* Get all of the xattr names for a file or directory.
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* Only those xattr names which the logged-in user has permissions to view
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* are returned.
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* <p/>
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* A regular user can only get xattr names for the "user" namespace.
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* The super user can only get xattr names for "user" and "trusted"
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* namespaces.
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* The xattrs of the "security" and "system" namespaces are only
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* used/exposed internally by/to the FS impl.
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* <p/>
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* @see <a href="http://en.wikipedia.org/wiki/Extended_file_attributes">
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* http://en.wikipedia.org/wiki/Extended_file_attributes</a>
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*
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* @param path Path to get extended attributes
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* @return List<String> of the XAttr names of the file or directory
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* @throws IOException
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*/
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public List<String> listXAttrs(Path path) throws IOException {
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final Path absF = fixRelativePart(path);
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return new FSLinkResolver<List<String>>() {
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@Override
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public List<String> next(final AbstractFileSystem fs, final Path p)
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throws IOException {
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return fs.listXAttrs(p);
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}
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}.resolve(this, absF);
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}
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}
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@ -2509,7 +2509,7 @@ public Map<String, byte[]> getXAttrs(Path path, List<String> names)
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* http://en.wikipedia.org/wiki/Extended_file_attributes</a>
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*
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* @param path Path to get extended attributes
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* @return Map<String, byte[]> describing the XAttrs of the file or directory
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* @return List<String> of the XAttr names of the file or directory
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* @throws IOException
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*/
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public List<String> listXAttrs(Path path) throws IOException {
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@ -22,6 +22,7 @@
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import java.net.URISyntaxException;
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import java.util.EnumSet;
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import java.util.List;
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import java.util.Map;
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import org.apache.hadoop.classification.InterfaceAudience;
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import org.apache.hadoop.classification.InterfaceStability;
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@ -37,6 +38,7 @@
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import org.apache.hadoop.fs.Options.ChecksumOpt;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.fs.UnresolvedLinkException;
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import org.apache.hadoop.fs.XAttrSetFlag;
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import org.apache.hadoop.fs.permission.AclEntry;
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import org.apache.hadoop.fs.permission.AclStatus;
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import org.apache.hadoop.fs.permission.FsPermission;
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@ -313,6 +315,38 @@ public AclStatus getAclStatus(Path path) throws IOException {
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return myFs.getAclStatus(fullPath(path));
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}
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@Override
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public void setXAttr(Path path, String name, byte[] value,
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EnumSet<XAttrSetFlag> flag) throws IOException {
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myFs.setXAttr(fullPath(path), name, value, flag);
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}
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@Override
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public byte[] getXAttr(Path path, String name) throws IOException {
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return myFs.getXAttr(fullPath(path), name);
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}
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@Override
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public Map<String, byte[]> getXAttrs(Path path) throws IOException {
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return myFs.getXAttrs(fullPath(path));
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}
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@Override
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public Map<String, byte[]> getXAttrs(Path path, List<String> names)
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throws IOException {
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return myFs.getXAttrs(fullPath(path), names);
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}
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@Override
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public List<String> listXAttrs(Path path) throws IOException {
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return myFs.listXAttrs(fullPath(path));
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}
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@Override
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public void removeXAttr(Path path, String name) throws IOException {
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myFs.removeXAttr(fullPath(path), name);
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}
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@Override
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public void setVerifyChecksum(final boolean verifyChecksum)
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throws IOException, UnresolvedLinkException {
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@ -913,5 +913,39 @@ public AclStatus getAclStatus(Path path) throws IOException {
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.addEntries(AclUtil.getMinimalAcl(PERMISSION_555))
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.stickyBit(false).build();
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}
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@Override
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public void setXAttr(Path path, String name, byte[] value,
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EnumSet<XAttrSetFlag> flag) throws IOException {
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checkPathIsSlash(path);
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throw readOnlyMountTable("setXAttr", path);
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}
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@Override
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public byte[] getXAttr(Path path, String name) throws IOException {
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throw new NotInMountpointException(path, "getXAttr");
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}
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@Override
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public Map<String, byte[]> getXAttrs(Path path) throws IOException {
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throw new NotInMountpointException(path, "getXAttrs");
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}
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@Override
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public Map<String, byte[]> getXAttrs(Path path, List<String> names)
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throws IOException {
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throw new NotInMountpointException(path, "getXAttrs");
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}
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@Override
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public List<String> listXAttrs(Path path) throws IOException {
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throw new NotInMountpointException(path, "listXAttrs");
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}
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@Override
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public void removeXAttr(Path path, String name) throws IOException {
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checkPathIsSlash(path);
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throw readOnlyMountTable("removeXAttr", path);
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}
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}
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}
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@ -26,6 +26,7 @@
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import java.util.ArrayList;
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import java.util.EnumSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import org.apache.hadoop.classification.InterfaceAudience;
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@ -48,6 +49,7 @@
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import org.apache.hadoop.fs.RemoteIterator;
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import org.apache.hadoop.fs.UnresolvedLinkException;
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import org.apache.hadoop.fs.UnsupportedFileSystemException;
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import org.apache.hadoop.fs.XAttrSetFlag;
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import org.apache.hadoop.fs.local.LocalConfigKeys;
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import org.apache.hadoop.fs.permission.AclEntry;
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import org.apache.hadoop.fs.permission.AclUtil;
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@ -651,6 +653,50 @@ public AclStatus getAclStatus(Path path) throws IOException {
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fsState.resolve(getUriPath(path), true);
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return res.targetFileSystem.getAclStatus(res.remainingPath);
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}
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@Override
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public void setXAttr(Path path, String name, byte[] value,
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EnumSet<XAttrSetFlag> flag) throws IOException {
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InodeTree.ResolveResult<AbstractFileSystem> res =
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fsState.resolve(getUriPath(path), true);
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res.targetFileSystem.setXAttr(res.remainingPath, name, value, flag);
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}
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@Override
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public byte[] getXAttr(Path path, String name) throws IOException {
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InodeTree.ResolveResult<AbstractFileSystem> res =
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fsState.resolve(getUriPath(path), true);
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return res.targetFileSystem.getXAttr(res.remainingPath, name);
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}
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@Override
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public Map<String, byte[]> getXAttrs(Path path) throws IOException {
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InodeTree.ResolveResult<AbstractFileSystem> res =
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fsState.resolve(getUriPath(path), true);
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return res.targetFileSystem.getXAttrs(res.remainingPath);
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}
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@Override
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public Map<String, byte[]> getXAttrs(Path path, List<String> names)
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throws IOException {
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InodeTree.ResolveResult<AbstractFileSystem> res =
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fsState.resolve(getUriPath(path), true);
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return res.targetFileSystem.getXAttrs(res.remainingPath, names);
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}
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@Override
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public List<String> listXAttrs(Path path) throws IOException {
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InodeTree.ResolveResult<AbstractFileSystem> res =
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fsState.resolve(getUriPath(path), true);
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return res.targetFileSystem.listXAttrs(res.remainingPath);
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}
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@Override
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public void removeXAttr(Path path, String name) throws IOException {
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InodeTree.ResolveResult<AbstractFileSystem> res =
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fsState.resolve(getUriPath(path), true);
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res.targetFileSystem.removeXAttr(res.remainingPath, name);
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}
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/*
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@ -921,5 +967,39 @@ public AclStatus getAclStatus(Path path) throws IOException {
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.addEntries(AclUtil.getMinimalAcl(PERMISSION_555))
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.stickyBit(false).build();
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}
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@Override
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public void setXAttr(Path path, String name, byte[] value,
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EnumSet<XAttrSetFlag> flag) throws IOException {
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checkPathIsSlash(path);
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throw readOnlyMountTable("setXAttr", path);
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}
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@Override
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public byte[] getXAttr(Path path, String name) throws IOException {
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throw new NotInMountpointException(path, "getXAttr");
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}
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@Override
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public Map<String, byte[]> getXAttrs(Path path) throws IOException {
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throw new NotInMountpointException(path, "getXAttrs");
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}
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@Override
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public Map<String, byte[]> getXAttrs(Path path, List<String> names)
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throws IOException {
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throw new NotInMountpointException(path, "getXAttrs");
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}
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@Override
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public List<String> listXAttrs(Path path) throws IOException {
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throw new NotInMountpointException(path, "listXAttrs");
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}
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@Override
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public void removeXAttr(Path path, String name) throws IOException {
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checkPathIsSlash(path);
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throw readOnlyMountTable("removeXAttr", path);
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}
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}
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}
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@ -773,4 +773,34 @@ public void testInternalGetAclStatus() throws IOException {
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assertFalse(aclStatus.isStickyBit());
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}
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@Test(expected=AccessControlException.class)
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public void testInternalSetXAttr() throws IOException {
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fsView.setXAttr(new Path("/internalDir"), "xattrName", null);
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}
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@Test(expected=NotInMountpointException.class)
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public void testInternalGetXAttr() throws IOException {
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fsView.getXAttr(new Path("/internalDir"), "xattrName");
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}
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@Test(expected=NotInMountpointException.class)
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public void testInternalGetXAttrs() throws IOException {
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fsView.getXAttrs(new Path("/internalDir"));
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}
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@Test(expected=NotInMountpointException.class)
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public void testInternalGetXAttrsWithNames() throws IOException {
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fsView.getXAttrs(new Path("/internalDir"), new ArrayList<String>());
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}
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@Test(expected=NotInMountpointException.class)
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public void testInternalListXAttr() throws IOException {
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fsView.listXAttrs(new Path("/internalDir"));
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}
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@Test(expected=AccessControlException.class)
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public void testInternalRemoveXAttr() throws IOException {
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fsView.removeXAttr(new Path("/internalDir"), "xattrName");
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}
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}
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AclUtil.getMinimalAcl(PERMISSION_555));
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assertFalse(aclStatus.isStickyBit());
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}
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@Test(expected=AccessControlException.class)
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public void testInternalSetXAttr() throws IOException {
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fcView.setXAttr(new Path("/internalDir"), "xattrName", null);
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}
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@Test(expected=NotInMountpointException.class)
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public void testInternalGetXAttr() throws IOException {
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fcView.getXAttr(new Path("/internalDir"), "xattrName");
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}
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@Test(expected=NotInMountpointException.class)
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public void testInternalGetXAttrs() throws IOException {
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fcView.getXAttrs(new Path("/internalDir"));
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}
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@Test(expected=NotInMountpointException.class)
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public void testInternalGetXAttrsWithNames() throws IOException {
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fcView.getXAttrs(new Path("/internalDir"), new ArrayList<String>());
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}
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@Test(expected=NotInMountpointException.class)
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public void testInternalListXAttr() throws IOException {
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fcView.listXAttrs(new Path("/internalDir"));
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}
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@Test(expected=AccessControlException.class)
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public void testInternalRemoveXAttr() throws IOException {
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fcView.removeXAttr(new Path("/internalDir"), "xattrName");
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}
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}
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