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HADOOP-9153. Support createNonRecursive in ViewFileSystem. Contributed by Sandy Ryza. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1423824 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Thomas White 2012-12-19 11:14:15 +00:00
parent 6cd0736cc5
commit 834e941044
6 changed files with 69 additions and 0 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -508,6 +508,9 @@ Release 2.0.3-alpha - Unreleased
HADOOP-9152. HDFS can report negative DFS Used on clusters with very small
amounts of data. (Brock Noland via atm)
HADOOP-9153. Support createNonRecursive in ViewFileSystem.
(Sandy Ryza via tomwhite)
Release 2.0.2-alpha - 2012-09-07
INCOMPATIBLE CHANGES

12
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FilterFileSystem.java
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@ -166,6 +166,18 @@ public class FilterFileSystem extends FileSystem {
return fs.create(f, permission,
overwrite, bufferSize, replication, blockSize, progress);
}
@Override
@Deprecated
public FSDataOutputStream createNonRecursive(Path f, FsPermission permission,
EnumSet<CreateFlag> flags, int bufferSize, short replication, long blockSize,
Progressable progress) throws IOException {
return fs.createNonRecursive(f, permission, flags, bufferSize, replication, blockSize,
progress);
}
/**
* Set replication for an existing file.

13
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/RawLocalFileSystem.java
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@ -30,6 +30,7 @@ import java.io.FileDescriptor;
import java.net.URI;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.EnumSet;
import java.util.StringTokenizer;
import org.apache.hadoop.classification.InterfaceAudience;
@ -281,6 +282,18 @@ public class RawLocalFileSystem extends FileSystem {
return new FSDataOutputStream(new BufferedOutputStream(
new LocalFSFileOutputStream(f, false), bufferSize), statistics);
}
@Override
@Deprecated
public FSDataOutputStream createNonRecursive(Path f, FsPermission permission,
EnumSet<CreateFlag> flags, int bufferSize, short replication, long blockSize,
Progressable progress) throws IOException {
if (exists(f) && !flags.contains(CreateFlag.OVERWRITE)) {
throw new IOException("File already exists: "+f);
}
return new FSDataOutputStream(new BufferedOutputStream(
new LocalFSFileOutputStream(f, false), bufferSize), statistics);
}
@Override
public FSDataOutputStream create(Path f, FsPermission permission,

13
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ChRootedFileSystem.java
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@ -19,11 +19,14 @@ package org.apache.hadoop.fs.viewfs;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URI;
import java.util.EnumSet;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.BlockLocation;
import org.apache.hadoop.fs.ContentSummary;
import org.apache.hadoop.fs.CreateFlag;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileChecksum;
@ -171,6 +174,16 @@ class ChRootedFileSystem extends FilterFileSystem {
return super.create(fullPath(f), permission, overwrite, bufferSize,
replication, blockSize, progress);
}
@Override
@Deprecated
public FSDataOutputStream createNonRecursive(Path f, FsPermission permission,
EnumSet<CreateFlag> flags, int bufferSize, short replication, long blockSize,
Progressable progress) throws IOException {
return super.createNonRecursive(fullPath(f), permission, flags, bufferSize, replication, blockSize,
progress);
}
@Override
public boolean delete(final Path f, final boolean recursive)

17
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFileSystem.java
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@ -24,6 +24,7 @@ import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Arrays;
import java.util.EnumSet;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
@ -35,6 +36,7 @@ import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.BlockLocation;
import org.apache.hadoop.fs.ContentSummary;
import org.apache.hadoop.fs.CreateFlag;
import org.apache.hadoop.fs.FSDataInputStream;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileAlreadyExistsException;
@ -264,6 +266,21 @@ public class ViewFileSystem extends FileSystem {
return res.targetFileSystem.append(res.remainingPath, bufferSize, progress);
}
@Override
public FSDataOutputStream createNonRecursive(Path f, FsPermission permission,
EnumSet<CreateFlag> flags, int bufferSize, short replication, long blockSize,
Progressable progress) throws IOException {
InodeTree.ResolveResult<FileSystem> res;
try {
res = fsState.resolve(getUriPath(f), false);
} catch (FileNotFoundException e) {
throw readOnlyMountTable("create", f);
}
assert(res.remainingPath != null);
return res.targetFileSystem.createNonRecursive(res.remainingPath, permission,
flags, bufferSize, replication, blockSize, progress);
}
@Override
public FSDataOutputStream create(final Path f, final FsPermission permission,
final boolean overwrite, final int bufferSize, final short replication,

11
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/viewfs/ViewFileSystemBaseTest.java
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@ -662,4 +662,15 @@ public class ViewFileSystemBaseTest {
public void testInternalSetOwner() throws IOException {
fsView.setOwner(new Path("/internalDir"), "foo", "bar");
}
@Test
public void testCreateNonRecursive() throws IOException {
Path path = FileSystemTestHelper.getTestRootPath(fsView, "/user/foo");
fsView.createNonRecursive(path, false, 1024, (short)1, 1024L, null);
FileStatus status = fsView.getFileStatus(new Path("/user/foo"));
Assert.assertTrue("Created file should be type file",
fsView.isFile(new Path("/user/foo")));
Assert.assertTrue("Target of created file should be type file",
fsTarget.isFile(new Path(targetTestRoot,"user/foo")));
}
}