HADOOP-7360. Preserve relative paths that do not contain globs in FsShell. Contributed by Daryn Sharp and Kihwal Lee

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1190109 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Tsz-wo Sze 2011-10-28 01:13:49 +00:00
parent 101962e598
commit 659ea4c540
7 changed files with 412 additions and 127 deletions

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@ -503,6 +503,9 @@ Release 0.23.0 - Unreleased
HADOOP-7762. Common side of MR-2736. (eli)
HADOOP-7360. Preserve relative paths that do not contain globs in FsShell.
(Daryn Sharp and Kihwal Lee via szetszwo)
OPTIMIZATIONS
HADOOP-7333. Performance improvement in PureJavaCrc32. (Eric Caspole

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@ -27,10 +27,8 @@
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.fs.ChecksumFileSystem;
import org.apache.hadoop.fs.FSDataOutputStream;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FileUtil;
import org.apache.hadoop.fs.LocalFileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.shell.PathExceptions.PathExistsException;
import org.apache.hadoop.fs.shell.PathExceptions.PathIOException;
import org.apache.hadoop.fs.shell.PathExceptions.PathOperationException;
@ -131,12 +129,10 @@ public static class Get extends CommandWithDestination {
private static final String COPYTOLOCAL_PREFIX = "_copyToLocal_";
private boolean copyCrc;
private boolean verifyChecksum;
private LocalFileSystem localFs;
@Override
protected void processOptions(LinkedList<String> args)
throws IOException {
localFs = FileSystem.getLocal(getConf());
CommandFormat cf = new CommandFormat(
1, Integer.MAX_VALUE, "crc", "ignoreCrc");
cf.parse(args);
@ -157,16 +153,15 @@ protected void processPath(PathData src, PathData target)
copyCrc = false;
}
File targetFile = localFs.pathToFile(target.path);
if (src.stat.isFile()) {
// copy the file and maybe its crc
copyFileToLocal(src, target.path);
copyFileToLocal(src, target);
if (copyCrc) {
copyCrcToLocal(src, target.path);
copyFileToLocal(src.getChecksumFile(), target.getChecksumFile());
}
} else if (src.stat.isDirectory()) {
// create the remote directory structure locally
if (!targetFile.mkdirs()) {
if (!target.toFile().mkdirs()) {
throw new PathIOException(target.toString());
}
} else {
@ -174,9 +169,9 @@ protected void processPath(PathData src, PathData target)
}
}
private void copyFileToLocal(PathData src, Path target)
private void copyFileToLocal(PathData src, PathData target)
throws IOException {
File targetFile = localFs.pathToFile(target);
File targetFile = target.toFile();
File tmpFile = FileUtil.createLocalTempFile(
targetFile, COPYTOLOCAL_PREFIX, true);
// too bad we can't tell exactly why it failed...
@ -195,14 +190,6 @@ private void copyFileToLocal(PathData src, Path target)
throw e;
}
}
private void copyCrcToLocal(PathData src, Path target)
throws IOException {
ChecksumFileSystem srcFs = (ChecksumFileSystem)src.fs;
Path srcPath = srcFs.getChecksumFile(src.path);
src = new PathData(srcFs.getRawFileSystem(), srcPath);
copyFileToLocal(src, localFs.getChecksumFile(target));
}
}
/**

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@ -81,6 +81,6 @@ protected void processOptions(LinkedList<String> args) {
@Override
protected void processPath(PathData src) throws IOException {
ContentSummary summary = src.fs.getContentSummary(src.path);
out.println(summary.toString(showQuotas) + src.path);
out.println(summary.toString(showQuotas) + src);
}
}

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@ -113,7 +113,7 @@ protected void processPath(PathData item) throws IOException {
stat.getGroup(),
formatSize(stat.getLen()),
dateFormat.format(new Date(stat.getModificationTime())),
item.path.toUri().getPath()
item
);
out.println(line);
}

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@ -21,27 +21,34 @@
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.ChecksumFileSystem;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.LocalFileSystem;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.shell.PathExceptions.PathIOException;
import org.apache.hadoop.fs.shell.PathExceptions.PathIsDirectoryException;
import org.apache.hadoop.fs.shell.PathExceptions.PathIsNotDirectoryException;
import org.apache.hadoop.fs.shell.PathExceptions.PathNotFoundException;
/**
* Encapsulates a Path (path), its FileStatus (stat), and its FileSystem (fs).
* The stat field will be null if the path does not exist.
*/
@InterfaceAudience.Private
@InterfaceStability.Evolving
@InterfaceStability.Unstable
public class PathData {
protected String string = null;
protected final URI uri;
public final FileSystem fs;
public final Path path;
public FileStatus stat;
public final FileSystem fs;
public boolean exists;
/**
@ -53,10 +60,7 @@ public class PathData {
* @throws IOException if anything goes wrong...
*/
public PathData(String pathString, Configuration conf) throws IOException {
this.string = pathString;
this.path = new Path(pathString);
this.fs = path.getFileSystem(conf);
setStat(getStat(fs, path));
this(FileSystem.get(URI.create(pathString), conf), pathString);
}
/**
@ -68,85 +72,114 @@ public PathData(String pathString, Configuration conf) throws IOException {
* @throws IOException if anything goes wrong...
*/
public PathData(File localPath, Configuration conf) throws IOException {
this.string = localPath.toString();
this.path = new Path(this.string);
this.fs = FileSystem.getLocal(conf);
setStat(getStat(fs, path));
this(FileSystem.getLocal(conf), localPath.toString());
}
/**
* Creates an object to wrap the given parameters as fields.
* @param fs the FileSystem
* @param path a Path
* @param stat the FileStatus (may be null if the path doesn't exist)
*/
public PathData(FileSystem fs, Path path, FileStatus stat) {
this.string = path.toString();
this.path = path;
this.fs = fs;
setStat(stat);
}
/**
* Convenience ctor that looks up the file status for a path. If the path
* Looks up the file status for a path. If the path
* doesn't exist, then the status will be null
* @param fs the FileSystem for the path
* @param path the pathname to lookup
* @param pathString a string for a path
* @throws IOException if anything goes wrong
*/
public PathData(FileSystem fs, Path path) throws IOException {
this(fs, path, getStat(fs, path));
private PathData(FileSystem fs, String pathString) throws IOException {
this(fs, pathString, lookupStat(fs, pathString, true));
}
/**
* Creates an object to wrap the given parameters as fields. The string
* used to create the path will be recorded since the Path object does not
* return exactly the same string used to initialize it. If the FileStatus
* is not null, then its Path will be used to initialized the path, else
* the string of the path will be used.
* return exactly the same string used to initialize it.
* @param fs the FileSystem
* @param pathString a String of the path
* @param stat the FileStatus (may be null if the path doesn't exist)
*/
public PathData(FileSystem fs, String pathString, FileStatus stat) {
this.string = pathString;
this.path = (stat != null) ? stat.getPath() : new Path(pathString);
private PathData(FileSystem fs, String pathString, FileStatus stat)
throws IOException {
this.fs = fs;
this.uri = stringToUri(pathString);
this.path = fs.makeQualified(new Path(uri));
setStat(stat);
}
// need a static method for the ctor above
private static FileStatus getStat(FileSystem fs, Path path)
/**
* Get the FileStatus info
* @param ignoreFNF if true, stat will be null if the path doesn't exist
* @return FileStatus for the given path
* @throws IOException if anything goes wrong
*/
private static
FileStatus lookupStat(FileSystem fs, String pathString, boolean ignoreFNF)
throws IOException {
FileStatus status = null;
try {
status = fs.getFileStatus(path);
} catch (FileNotFoundException e) {} // ignore FNF
status = fs.getFileStatus(new Path(pathString));
} catch (FileNotFoundException e) {
if (!ignoreFNF) throw new PathNotFoundException(pathString);
}
// TODO: should consider wrapping other exceptions into Path*Exceptions
return status;
}
private void setStat(FileStatus theStat) {
stat = theStat;
private void setStat(FileStatus stat) {
this.stat = stat;
exists = (stat != null);
}
/**
* Convenience ctor that extracts the path from the given file status
* @param fs the FileSystem for the FileStatus
* @param stat the FileStatus
*/
public PathData(FileSystem fs, FileStatus stat) {
this(fs, stat.getPath(), stat);
}
/**
* Updates the paths's file status
* @return the updated FileStatus
* @throws IOException if anything goes wrong...
*/
public FileStatus refreshStatus() throws IOException {
setStat(fs.getFileStatus(path));
return stat;
FileStatus status = null;
try {
status = lookupStat(fs, toString(), false);
} finally {
// always set the status. the caller must get the correct result
// if it catches the exception and later interrogates the status
setStat(status);
}
return status;
}
protected enum FileTypeRequirement {
SHOULD_NOT_BE_DIRECTORY, SHOULD_BE_DIRECTORY
};
/**
* Ensure that the file exists and if it is or is not a directory
* @param typeRequirement Set it to the desired requirement.
* @throws PathIOException if file doesn't exist or the type does not match
* what was specified in typeRequirement.
*/
private void checkIfExists(FileTypeRequirement typeRequirement)
throws PathIOException {
if (!exists) {
throw new PathNotFoundException(toString());
}
if ((typeRequirement == FileTypeRequirement.SHOULD_BE_DIRECTORY)
&& !stat.isDirectory()) {
throw new PathIsNotDirectoryException(toString());
} else if ((typeRequirement == FileTypeRequirement.SHOULD_NOT_BE_DIRECTORY)
&& stat.isDirectory()) {
throw new PathIsDirectoryException(toString());
}
}
/**
* Return the corresponding crc data for a file. Avoids exposing the fs
* contortions to the caller.
* @return PathData of the crc file
* @throws IOException is anything goes wrong
*/
public PathData getChecksumFile() throws IOException {
checkIfExists(FileTypeRequirement.SHOULD_NOT_BE_DIRECTORY);
ChecksumFileSystem srcFs = (ChecksumFileSystem)fs;
Path srcPath = srcFs.getChecksumFile(path);
return new PathData(srcFs.getRawFileSystem(), srcPath.toString());
}
/**
@ -156,18 +189,13 @@ public FileStatus refreshStatus() throws IOException {
* @throws IOException if anything else goes wrong...
*/
public PathData[] getDirectoryContents() throws IOException {
if (!stat.isDirectory()) {
throw new PathIsNotDirectoryException(string);
}
checkIfExists(FileTypeRequirement.SHOULD_BE_DIRECTORY);
FileStatus[] stats = fs.listStatus(path);
PathData[] items = new PathData[stats.length];
for (int i=0; i < stats.length; i++) {
// preserve relative paths
String basename = stats[i].getPath().getName();
String parent = string;
if (!parent.endsWith(Path.SEPARATOR)) parent += Path.SEPARATOR;
items[i] = new PathData(fs, parent + basename, stats[i]);
String child = getStringForChildPath(stats[i].getPath());
items[i] = new PathData(fs, child, stats[i]);
}
return items;
}
@ -179,11 +207,29 @@ public PathData[] getDirectoryContents() throws IOException {
* @throws IOException if this object does not exist or is not a directory
*/
public PathData getPathDataForChild(PathData child) throws IOException {
if (!stat.isDirectory()) {
throw new PathIsNotDirectoryException(string);
checkIfExists(FileTypeRequirement.SHOULD_BE_DIRECTORY);
return new PathData(fs, getStringForChildPath(child.path));
}
return new PathData(fs, new Path(path, child.path.getName()));
/**
* Given a child of this directory, use the directory's path and the child's
* basename to construct the string to the child. This preserves relative
* paths since Path will fully qualify.
* @param child a path contained within this directory
* @return String of the path relative to this directory
*/
private String getStringForChildPath(Path childPath) {
String basename = childPath.getName();
if (Path.CUR_DIR.equals(toString())) {
return basename;
}
// check getPath() so scheme slashes aren't considered part of the path
String separator = uri.getPath().endsWith(Path.SEPARATOR)
? "" : Path.SEPARATOR;
return uri + separator + basename;
}
protected enum PathType { HAS_SCHEME, SCHEMELESS_ABSOLUTE, RELATIVE };
/**
* Expand the given path as a glob pattern. Non-existent paths do not
@ -207,35 +253,184 @@ public static PathData[] expandAsGlob(String pattern, Configuration conf)
if (stats == null) {
// not a glob & file not found, so add the path with a null stat
items = new PathData[]{ new PathData(fs, pattern, null) };
} else if (
// this is very ugly, but needed to avoid breaking hdfs tests...
// if a path has no authority, then the FileStatus from globStatus
// will add the "-fs" authority into the path, so we need to sub
// it back out to satisfy the tests
stats.length == 1
&&
stats[0].getPath().equals(fs.makeQualified(globPath)))
{
// if the fq path is identical to the pattern passed, use the pattern
// to initialize the string value
items = new PathData[]{ new PathData(fs, pattern, stats[0]) };
} else {
// figure out what type of glob path was given, will convert globbed
// paths to match the type to preserve relativity
PathType globType;
URI globUri = globPath.toUri();
if (globUri.getScheme() != null) {
globType = PathType.HAS_SCHEME;
} else if (new File(globUri.getPath()).isAbsolute()) {
globType = PathType.SCHEMELESS_ABSOLUTE;
} else {
globType = PathType.RELATIVE;
}
// convert stats to PathData
items = new PathData[stats.length];
int i=0;
for (FileStatus stat : stats) {
items[i++] = new PathData(fs, stat);
URI matchUri = stat.getPath().toUri();
String globMatch = null;
switch (globType) {
case HAS_SCHEME: // use as-is, but remove authority if necessary
if (globUri.getAuthority() == null) {
matchUri = removeAuthority(matchUri);
}
globMatch = matchUri.toString();
break;
case SCHEMELESS_ABSOLUTE: // take just the uri's path
globMatch = matchUri.getPath();
break;
case RELATIVE: // make it relative to the current working dir
URI cwdUri = fs.getWorkingDirectory().toUri();
globMatch = relativize(cwdUri, matchUri, stat.isDirectory());
break;
}
items[i++] = new PathData(fs, globMatch, stat);
}
}
return items;
}
private static URI removeAuthority(URI uri) {
try {
uri = new URI(
uri.getScheme(), "",
uri.getPath(), uri.getQuery(), uri.getFragment()
);
} catch (URISyntaxException e) {
throw new IllegalArgumentException(e.getLocalizedMessage());
}
return uri;
}
private static String relativize(URI cwdUri, URI srcUri, boolean isDir) {
String uriPath = srcUri.getPath();
String cwdPath = cwdUri.getPath();
if (cwdPath.equals(uriPath)) {
return Path.CUR_DIR;
}
// find common ancestor
int lastSep = findLongestDirPrefix(cwdPath, uriPath, isDir);
StringBuilder relPath = new StringBuilder();
// take the remaining path fragment after the ancestor
if (lastSep < uriPath.length()) {
relPath.append(uriPath.substring(lastSep+1));
}
// if cwd has a path fragment after the ancestor, convert them to ".."
if (lastSep < cwdPath.length()) {
while (lastSep != -1) {
if (relPath.length() != 0) relPath.insert(0, Path.SEPARATOR);
relPath.insert(0, "..");
lastSep = cwdPath.indexOf(Path.SEPARATOR, lastSep+1);
}
}
return relPath.toString();
}
private static int findLongestDirPrefix(String cwd, String path, boolean isDir) {
// add the path separator to dirs to simplify finding the longest match
if (!cwd.endsWith(Path.SEPARATOR)) {
cwd += Path.SEPARATOR;
}
if (isDir && !path.endsWith(Path.SEPARATOR)) {
path += Path.SEPARATOR;
}
// find longest directory prefix
int len = Math.min(cwd.length(), path.length());
int lastSep = -1;
for (int i=0; i < len; i++) {
if (cwd.charAt(i) != path.charAt(i)) break;
if (cwd.charAt(i) == Path.SEPARATOR_CHAR) lastSep = i;
}
return lastSep;
}
/**
* Returns the printable version of the path that is either the path
* as given on the commandline, or the full path
* @return String of the path
*/
public String toString() {
return (string != null) ? string : path.toString();
String scheme = uri.getScheme();
// No interpretation of symbols. Just decode % escaped chars.
String decodedRemainder = uri.getSchemeSpecificPart();
if (scheme == null) {
return decodedRemainder;
} else {
StringBuilder buffer = new StringBuilder();
buffer.append(scheme);
buffer.append(":");
buffer.append(decodedRemainder);
return buffer.toString();
}
}
/**
* Get the path to a local file
* @return File representing the local path
* @throws IllegalArgumentException if this.fs is not the LocalFileSystem
*/
public File toFile() {
if (!(fs instanceof LocalFileSystem)) {
throw new IllegalArgumentException("Not a local path: " + path);
}
return ((LocalFileSystem)fs).pathToFile(path);
}
/** Construct a URI from a String with unescaped special characters
* that have non-standard sematics. e.g. /, ?, #. A custom parsing
* is needed to prevent misbihaviors.
* @param pathString The input path in string form
* @return URI
*/
private static URI stringToUri(String pathString) {
// We can't use 'new URI(String)' directly. Since it doesn't do quoting
// internally, the internal parser may fail or break the string at wrong
// places. Use of multi-argument ctors will quote those chars for us,
// but we need to do our own parsing and assembly.
// parse uri components
String scheme = null;
String authority = null;
int start = 0;
// parse uri scheme, if any
int colon = pathString.indexOf(':');
int slash = pathString.indexOf('/');
if (colon > 0 && (slash == colon +1)) {
// has a non zero-length scheme
scheme = pathString.substring(0, colon);
start = colon + 1;
}
// parse uri authority, if any
if (pathString.startsWith("//", start) &&
(pathString.length()-start > 2)) {
start += 2;
int nextSlash = pathString.indexOf('/', start);
int authEnd = nextSlash > 0 ? nextSlash : pathString.length();
authority = pathString.substring(start, authEnd);
start = authEnd;
}
// uri path is the rest of the string. ? or # are not interpreated,
// but any occurrence of them will be quoted by the URI ctor.
String path = pathString.substring(start, pathString.length());
// Construct the URI
try {
return new URI(scheme, authority, path, null, null);
} catch (URISyntaxException e) {
throw new IllegalArgumentException(e);
}
}
}

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@ -180,7 +180,7 @@ private void displayResults() {
LOG.info(" Comparision result: [" +
(resultBoolean ? "pass" : "fail") + "]");
LOG.info(" Expected output: [" +
cd.getExpectedOutput() + "]");
expandCommand(cd.getExpectedOutput()) + "]");
LOG.info(" Actual output: [" +
cd.getActualOutput() + "]");
}
@ -290,7 +290,7 @@ private boolean compareTestOutput(ComparatorData compdata, Result cmdResult) {
comparatorType);
ComparatorBase comp = (ComparatorBase) comparatorClass.newInstance();
compareOutput = comp.compare(cmdResult.getCommandOutput(),
compdata.getExpectedOutput());
expandCommand(compdata.getExpectedOutput()));
} catch (Exception e) {
LOG.info("Error in instantiating the comparator" + e);
}

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@ -17,80 +17,180 @@
*/
package org.apache.hadoop.fs.shell;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.util.Arrays;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;
public class TestPathData {
protected static Configuration conf;
protected static FileSystem fs;
protected static String dirString;
protected static Path dir;
protected static Path testDir;
protected static PathData item;
protected static String[] d1Paths =
new String[] { "d1/f1", "d1/f1.1", "d1/f2" };
protected static String[] d2Paths =
new String[] { "d2/f3" };
@BeforeClass
public static void initialize() throws Exception {
conf = new Configuration();
fs = FileSystem.getLocal(conf);
testDir = new Path(
System.getProperty("test.build.data", "build/test/data") + "/testPD"
);
// don't want scheme on the path, just an absolute path
testDir = new Path(fs.makeQualified(testDir).toUri().getPath());
FileSystem.setDefaultUri(conf, fs.getUri());
fs.setWorkingDirectory(testDir);
fs.mkdirs(new Path("d1"));
fs.createNewFile(new Path("d1", "f1"));
fs.createNewFile(new Path("d1", "f1.1"));
fs.createNewFile(new Path("d1", "f2"));
fs.mkdirs(new Path("d2"));
fs.create(new Path("d2","f3"));
}
@Test
public void testWithFsAndPath() throws Exception {
dirString = "/tmp";
dir = new Path(dirString);
item = new PathData(fs, dir);
public void testWithDirStringAndConf() throws Exception {
dirString = "d1";
item = new PathData(dirString, conf);
checkPathData();
}
@Test
public void testWithStringAndConf() throws Exception {
dirString = "/tmp";
dir = new Path(dirString);
// properly implementing symlink support in various commands will require
// trailing slashes to be retained
dirString = "d1/";
item = new PathData(dirString, conf);
checkPathData();
}
@Test
public void testUnqualifiedUriContents() throws Exception {
dirString = "/tmp";
dirString = "d1";
item = new PathData(dirString, conf);
PathData[] items = item.getDirectoryContents();
for (PathData item : items) {
assertTrue(item.toString().startsWith(dirString));
}
assertEquals(
sortedString("d1/f1", "d1/f1.1", "d1/f2"),
sortedString(items)
);
}
@Test
public void testQualifiedUriContents() throws Exception {
dirString = "file:/tmp";
dirString = fs.makeQualified(new Path("d1")).toString();
item = new PathData(dirString, conf);
PathData[] items = item.getDirectoryContents();
for (PathData item : items) {
assertTrue(item.toString().startsWith(dirString));
assertEquals(
sortedString(dirString+"/f1", dirString+"/f1.1", dirString+"/f2"),
sortedString(items)
);
}
@Test
public void testCwdContents() throws Exception {
dirString = Path.CUR_DIR;
item = new PathData(dirString, conf);
PathData[] items = item.getDirectoryContents();
assertEquals(
sortedString("d1", "d2"),
sortedString(items)
);
}
@Test
public void testToFile() throws Exception {
item = new PathData(".", conf);
assertEquals(new File(testDir.toString()), item.toFile());
item = new PathData("d1/f1", conf);
assertEquals(new File(testDir+"/d1/f1"), item.toFile());
item = new PathData(testDir+"/d1/f1", conf);
assertEquals(new File(testDir+"/d1/f1"), item.toFile());
}
@Test
public void testAbsoluteGlob() throws Exception {
PathData[] items = PathData.expandAsGlob(testDir+"/d1/f1*", conf);
assertEquals(
sortedString(testDir+"/d1/f1", testDir+"/d1/f1.1"),
sortedString(items)
);
}
@Test
public void testRelativeGlob() throws Exception {
PathData[] items = PathData.expandAsGlob("d1/f1*", conf);
assertEquals(
sortedString("d1/f1", "d1/f1.1"),
sortedString(items)
);
}
@Test
public void testRelativeGlobBack() throws Exception {
fs.setWorkingDirectory(new Path("d1"));
PathData[] items = PathData.expandAsGlob("../d2/*", conf);
assertEquals(
sortedString("../d2/f3"),
sortedString(items)
);
}
@Test
public void testWithStringAndConfForBuggyPath() throws Exception {
dirString = "file:///tmp";
dir = new Path(dirString);
testDir = new Path(dirString);
item = new PathData(dirString, conf);
// this may fail some day if Path is fixed to not crunch the uri
// if the authority is null, however we need to test that the PathData
// toString() returns the given string, while Path toString() does
// the crunching
assertEquals("file:/tmp", dir.toString());
assertEquals("file:/tmp", testDir.toString());
checkPathData();
}
public void checkPathData() throws Exception {
assertEquals(fs, item.fs);
assertEquals(dirString, item.toString());
assertEquals(dir, item.path);
assertTrue(item.stat != null);
assertTrue(item.stat.isDirectory());
assertEquals("checking fs", fs, item.fs);
assertEquals("checking string", dirString, item.toString());
assertEquals("checking path",
fs.makeQualified(new Path(item.toString())), item.path
);
assertTrue("checking exist", item.stat != null);
assertTrue("checking isDir", item.stat.isDirectory());
}
/* junit does a lousy job of comparing arrays
* if the array lengths differ, it just says that w/o showing contents
* this sorts the paths, and builds a string of "i:<value>, ..." suitable
* for a string compare
*/
private static String sortedString(Object ... list) {
String[] strings = new String[list.length];
for (int i=0; i < list.length; i++) {
strings[i] = String.valueOf(list[i]);
}
Arrays.sort(strings);
StringBuilder result = new StringBuilder();
for (int i=0; i < strings.length; i++) {
if (result.length() > 0) {
result.append(", ");
}
result.append(i+":<"+strings[i]+">");
}
return result.toString();
}
private static String sortedString(PathData ... items) {
return sortedString((Object[])items);
}
}