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HADOOP-6286. Fix bugs in related to URI handling in glob methods in FileContext. Contributed by Boris Shkolnik. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@822805 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Suresh Srinivas 2009-10-07 17:07:37 +00:00
parent 59ab2c5d31
commit 64f537da0a
2 changed files with 38 additions and 10 deletions
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3
CHANGES.txt
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@ -1092,6 +1092,9 @@ Release 0.21.0 - Unreleased
HADOOP-6285. Fix the result type of the getParameterMap method in the
HttpServer.QuotingInputFilter. (omalley)
HADOOP-6286. Fix bugs in related to URI handling in glob methods in
FileContext. (Boris Shkolnik via suresh)
Release 0.20.1 - 2009-09-01
INCOMPATIBLE CHANGES

41
src/java/org/apache/hadoop/fs/FileContext.java
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@ -869,7 +869,11 @@ public final class FileContext {
}
ArrayList<FileStatus> results = new ArrayList<FileStatus>(paths.length);
for (int i = 0; i < paths.length; i++) {
try {
results.add(FileContext.this.getFileStatus(paths[i]));
} catch (FileNotFoundException fnfe) {
// ignoring
}
}
return results.toArray(new FileStatus[results.size()]);
}
@ -1016,17 +1020,25 @@ public final class FileContext {
* @return an array of FileStatus objects
* @throws IOException if any I/O error occurs when fetching file status
*/
public FileStatus[] globStatus(Path pathPattern, PathFilter filter)
public FileStatus[] globStatus(final Path pathPattern, final PathFilter filter)
throws IOException {
String filename = pathPattern.toUri().getPath();
List<String> filePatterns = GlobExpander.expand(filename);
if (filePatterns.size() == 1) {
return globStatusInternal(pathPattern, filter);
Path p = fixRelativePart(pathPattern);
FileSystem fs = getFSofPath(p);
URI uri = fs.getUri();
return globStatusInternal(uri, p, filter);
} else {
List<FileStatus> results = new ArrayList<FileStatus>();
for (String filePattern : filePatterns) {
FileStatus[] files =
globStatusInternal(new Path(filePattern), filter);
Path p = new Path(filePattern);
p = fixRelativePart(p);
FileSystem fs = getFSofPath(p);
URI uri = fs.getUri();
FileStatus[] files = globStatusInternal(uri, p, filter);
for (FileStatus file : files) {
results.add(file);
}
@ -1035,15 +1047,21 @@ public final class FileContext {
}
}
private FileStatus[] globStatusInternal(Path pathPattern, PathFilter filter)
private FileStatus[] globStatusInternal(
final URI uri, final Path inPathPattern, final PathFilter filter)
throws IOException {
Path[] parents = new Path[1];
int level = 0;
// comes in as full path, but just in case
final Path pathPattern = fixRelativePart(inPathPattern);
String filename = pathPattern.toUri().getPath();
// path has only zero component
if ("".equals(filename) || Path.SEPARATOR.equals(filename)) {
return getFileStatus(new Path[]{pathPattern});
Path p = pathPattern.makeQualified(uri, null);
return getFileStatus(new Path[]{p});
}
// path has at least one component
@ -1058,11 +1076,18 @@ public final class FileContext {
// glob the paths that match the parent path, ie. [0, components.length-1]
boolean[] hasGlob = new boolean[]{false};
Path[] parentPaths = globPathsLevel(parents, components, level, hasGlob);
Path[] relParentPaths = globPathsLevel(parents, components, level, hasGlob);
FileStatus[] results;
if (parentPaths == null || parentPaths.length == 0) {
if (relParentPaths == null || relParentPaths.length == 0) {
results = null;
} else {
// fix the pathes to be abs
Path[] parentPaths = new Path [relParentPaths.length];
for(int i=0; i<relParentPaths.length; i++) {
parentPaths[i] = relParentPaths[i].makeQualified(uri, null);
}
// Now work on the last component of the path
GlobFilter fp =
new GlobFilter(components[components.length - 1], filter);