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Code Issues Packages Projects Releases Wiki Activity

Fix leak

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This commit is contained in:
jendib 2013-08-26 22:03:14 +02:00
parent 6e3d2ea972
commit ac3580fb4a
1 changed files with 102 additions and 97 deletions
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199
docs-core/src/main/java/com/sismics/util/ResourceUtil.java
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@ -1,97 +1,102 @@
package com.sismics.util;
import com.google.common.collect.Lists;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLDecoder;
import java.text.MessageFormat;
import java.util.*;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
/**
* Resource utilities.
*
* @author jtremeaux
*/
public class ResourceUtil {
/**
* List files inside a directory. The path can be a directory on the filesystem, or inside a JAR.
*
* @param clazz Class
* @param path Path
* @param filter Filter
* @return List of files
* @throws URISyntaxException
* @throws IOException
*/
public static List<String> list(Class<?> clazz, String path, FilenameFilter filter) throws URISyntaxException, IOException {
// Path is a directory on the filesystem
URL dirUrl = clazz.getResource(path);
if (dirUrl != null && dirUrl.getProtocol().equals("file")) {
return Arrays.asList(new File(dirUrl.toURI()).list(filter));
}
// Path is a directory inside the same JAR as clazz
if (dirUrl == null) {
String className = clazz.getName().replace(".", "/") + ".class";
dirUrl = clazz.getClassLoader().getResource(className);
}
if (dirUrl.getProtocol().equals("jar")) {
if (path.startsWith("/")) {
path = path.substring(1);
}
if (!path.endsWith("/")) {
path = path + "/";
}
// Extract the JAR path
String jarPath = dirUrl.getPath().substring(5, dirUrl.getPath().indexOf("!"));
JarFile jar = new JarFile(URLDecoder.decode(jarPath, "UTF-8"));
Enumeration<JarEntry> entries = jar.entries();
Set<String> fileSet = new HashSet<String>();
while (entries.hasMoreElements()) {
// Filter according to the path
String entryName = entries.nextElement().getName();
if (!entryName.startsWith(path)) {
continue;
}
String name = entryName.substring(path.length());
if (!"".equals(name)) {
// If it is a subdirectory, just return the directory name
int checkSubdir = name.indexOf("/");
if (checkSubdir >= 0) {
name = name.substring(0, checkSubdir);
}
if (filter == null || filter.accept(null, name)) {
fileSet.add(name);
}
}
}
return Lists.newArrayList(fileSet);
}
throw new UnsupportedOperationException(MessageFormat.format("Cannot list files for URL {0}", dirUrl));
}
/**
* List files inside a directory. The path can be a directory on the filesystem, or inside a JAR.
*
* @param clazz Class
* @param path Path
* @return List of files
* @throws URISyntaxException
* @throws IOException
*/
public static List<String> list(Class<?> clazz, String path) throws URISyntaxException, IOException {
return list(clazz, path, null);
}
}
package com.sismics.util;
import com.google.common.collect.Lists;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLDecoder;
import java.text.MessageFormat;
import java.util.*;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;
/**
* Resource utilities.
*
* @author jtremeaux
*/
public class ResourceUtil {
/**
* List files inside a directory. The path can be a directory on the filesystem, or inside a JAR.
*
* @param clazz Class
* @param path Path
* @param filter Filter
* @return List of files
* @throws URISyntaxException
* @throws IOException
*/
public static List<String> list(Class<?> clazz, String path, FilenameFilter filter) throws URISyntaxException, IOException {
// Path is a directory on the filesystem
URL dirUrl = clazz.getResource(path);
if (dirUrl != null && dirUrl.getProtocol().equals("file")) {
return Arrays.asList(new File(dirUrl.toURI()).list(filter));
}
// Path is a directory inside the same JAR as clazz
if (dirUrl == null) {
String className = clazz.getName().replace(".", "/") + ".class";
dirUrl = clazz.getClassLoader().getResource(className);
}
if (dirUrl.getProtocol().equals("jar")) {
if (path.startsWith("/")) {
path = path.substring(1);
}
if (!path.endsWith("/")) {
path = path + "/";
}
// Extract the JAR path
String jarPath = dirUrl.getPath().substring(5, dirUrl.getPath().indexOf("!"));
JarFile jar = new JarFile(URLDecoder.decode(jarPath, "UTF-8"));
Set<String> fileSet = new HashSet<String>();
try {
Enumeration<JarEntry> entries = jar.entries();
while (entries.hasMoreElements()) {
// Filter according to the path
String entryName = entries.nextElement().getName();
if (!entryName.startsWith(path)) {
continue;
}
String name = entryName.substring(path.length());
if (!"".equals(name)) {
// If it is a subdirectory, just return the directory name
int checkSubdir = name.indexOf("/");
if (checkSubdir >= 0) {
name = name.substring(0, checkSubdir);
}
if (filter == null || filter.accept(null, name)) {
fileSet.add(name);
}
}
}
} finally {
jar.close();
}
return Lists.newArrayList(fileSet);
}
throw new UnsupportedOperationException(MessageFormat.format("Cannot list files for URL {0}", dirUrl));
}
/**
* List files inside a directory. The path can be a directory on the filesystem, or inside a JAR.
*
* @param clazz Class
* @param path Path
* @return List of files
* @throws URISyntaxException
* @throws IOException
*/
public static List<String> list(Class<?> clazz, String path) throws URISyntaxException, IOException {
return list(clazz, path, null);
}
}