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nl.coinsweb.sdk.FileManager Maven / Gradle / Ivy
/**
* MIT License
*
* Copyright (c) 2016 Bouw Informatie Raad
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
**/
package nl.coinsweb.sdk;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ResIterator;
import com.hp.hpl.jena.vocabulary.OWL;
import com.hp.hpl.jena.vocabulary.RDF;
import nl.coinsweb.sdk.exceptions.*;
import nl.coinsweb.sdk.jena.InMemGraphSet;
import nl.coinsweb.sdk.jena.JenaCoinsContainer;
import org.apache.commons.lang3.RandomStringUtils;
import org.codehaus.plexus.util.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import java.io.*;
import java.net.*;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.nio.file.StandardCopyOption;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
/**
* @author Bastiaan Bijl, Sysunite 2016
*/
public class FileManager {
private static final Logger log = LoggerFactory.getLogger(FileManager.class);
private static Path TEMP_ZIP_PATH;
private static Path TEMP_LIB_PATH;
private static final String[] INDEX_AS_RDF = {".rdf", ".owl", ".ttl"};
public static String DEFAULT_TEMP_FOLDER = "/tmp/";
private static final String ZIP_FOLDER = "coinscontainers/";
private static final String LIB_FOLDER = "coinsgloballibraries/";
private static String RDF_PATH = "bim";
private static String ONTOLOGIES_PATH = "bim/repository";
private static String ATTACHMENT_PATH = "doc";
private static String WOA_PATH = "woa";
private static CoinsGraphSet graphSet = new InMemGraphSet("http://sandbox/");
private static ArrayList foldersToCleanup;
public static ArrayList getFoldersToCleanup() {
if(foldersToCleanup == null) {
foldersToCleanup = new ArrayList<>();
foldersToCleanup.add(getTempZipPath().toFile());
foldersToCleanup.add(getTempLibPath().toFile());
}
return foldersToCleanup;
}
public static String newCoinsContainer() {
String internalRef = RandomStringUtils.random(8, true, true);
Path homePath = getTempZipPath().resolve(internalRef);
initContainer(homePath, false);
return internalRef;
}
public static String existingCoinsContainer(String internalRef) {
Path homePath = getTempZipPath().resolve(internalRef);
initContainer(homePath, false);
return internalRef;
}
public static String existingCoinsContainer(File sourceFile,
HashMap rdfFiles,
HashMap woaFiles,
HashMap attachments,
HashMap libraryFiles,
boolean strict) {
if (!sourceFile.exists()) {
throw new CoinsFileNotFoundException("Supplied .ccr-file could not be found.");
}
String internalRef = RandomStringUtils.random(8, true, true);
Path homePath = getTempZipPath().resolve(internalRef);
unzipTo(sourceFile, homePath);
initContainer(homePath, strict);
FileManager.indexZipFile(internalRef, rdfFiles, woaFiles, attachments, libraryFiles, strict);
return internalRef;
}
private static Path getTempZipPath() {
if(TEMP_ZIP_PATH != null) {
return TEMP_ZIP_PATH;
}
TEMP_ZIP_PATH = Paths.get(DEFAULT_TEMP_FOLDER).resolve(ZIP_FOLDER);
return TEMP_ZIP_PATH;
}
private static Path getTempLibPath() {
if(TEMP_LIB_PATH != null) {
return TEMP_LIB_PATH;
}
TEMP_LIB_PATH = Paths.get(DEFAULT_TEMP_FOLDER).resolve(LIB_FOLDER);
return TEMP_LIB_PATH;
}
private static void initContainer(Path homePath, boolean strict) {
// Create output directory is not exists
File homePathFile = homePath.toFile();
if(!homePathFile.exists()){
if(!homePathFile.mkdirs()) {
throw new CoinsFileNotFoundException("Not able to create temp path "+homePathFile+".");
}
}
Path rdfPath = homePath.resolve(RDF_PATH);
File rdfPathFile = rdfPath.toFile();
if(!rdfPathFile.exists()) {
if(strict) {
throw new InvalidContainerFileException("Folder "+RDF_PATH+" does not exist inside the container file.");
}
log.warn("Missing folder in container, will create it: " + rdfPathFile);
if(!rdfPathFile.mkdirs()) {
throw new CoinsFileNotFoundException("Not able to create temp path "+rdfPathFile+".");
}
}
Path ontologiesPath = homePath.resolve(ONTOLOGIES_PATH);
File ontologiesPathFile = ontologiesPath.toFile();
if(!ontologiesPathFile.exists()) {
log.warn("Missing folder in container, will create it: " + ontologiesPathFile);
if(!ontologiesPathFile.mkdirs()) {
throw new CoinsFileNotFoundException("Not able to create temp path "+ontologiesPathFile+".");
}
}
Path attachmentPath = homePath.resolve(ATTACHMENT_PATH);
File attachmentPathFile = attachmentPath.toFile();
if(!attachmentPathFile.exists()) {
log.warn("Missing folder in container, will create it: " + attachmentPath);
if(!attachmentPathFile.mkdirs()) {
throw new CoinsFileNotFoundException("Not able to create temp path "+attachmentPathFile+".");
}
}
Path woaPath = homePath.resolve(WOA_PATH);
File woaPathFile = woaPath.toFile();
if(!woaPathFile.exists()) {
log.warn("Missing folder in container, will create it: " + woaPathFile);
if(!woaPathFile.mkdirs()) {
throw new CoinsFileNotFoundException("Not able to create temp path "+woaPathFile+".");
}
}
}
public static File createRdfFile(String internalRef, String fileName) {
if(internalRef == null) {
throw new CoinsFileNotFoundException("Creating rdf file in non existing coins container.");
}
Path homePath = getTempZipPath().resolve(internalRef);
Path rdfPath = homePath.resolve(RDF_PATH);
File candidate = rdfPath.resolve(fileName).toFile();
if(candidate.exists()) {
log.debug("File in container already exists, will be overriding.");
} else {
candidate.getParentFile().mkdirs();
}
return candidate;
}
public static File createWoaFile(String internalRef, String fileName) {
if(internalRef == null) {
throw new CoinsFileNotFoundException("Creating rdf file in non existing coins container.");
}
Path homePath = getTempZipPath().resolve(internalRef);
Path rdfPath = homePath.resolve(WOA_PATH);
File candidate = rdfPath.resolve(fileName).toFile();
if(candidate.exists()) {
log.debug("File in container already exists, will be overriding.");
} else {
candidate.getParentFile().mkdirs();
}
return candidate;
}
/**
* Extracts all the content of the .ccr-file specified in the constructor to [TEMP_ZIP_PATH] / [internalRef].
*
*/
public static void unzipTo(File sourceFile, Path destinationPath) {
unzipTo(sourceFile, destinationPath, false);
}
public static void unzipTo(File sourceFile, Path destinationPath, boolean strict) {
byte[] buffer = new byte[1024];
String startFolder = null;
try {
// Get the zip file content
ZipInputStream zis = new ZipInputStream(new FileInputStream(sourceFile));
ZipEntry ze = zis.getNextEntry();
int fileCounter = 0;
while(ze != null) {
if(ze.isDirectory()) {
ze = zis.getNextEntry();
continue;
}
String fileName = ze.getName();
// If the first folder is a somename/bim/file.ref skip it
Path filePath = Paths.get(fileName);
Path pathPath = filePath.getParent();
String pathPathString = (pathPath!=null) ? pathPath.toString().toLowerCase() : "";
if(pathPathString.endsWith("bim") ||
pathPathString.endsWith("bim/repository") || pathPathString.endsWith("bim\\repository") ||
pathPathString.endsWith("doc") ||
pathPathString.endsWith("woa")) {
Path pathRoot = pathPathString.endsWith("repository") ? pathPath.getParent().getParent() : pathPath.getParent();
String prefix = "";
if (pathRoot != null) {
prefix = pathRoot.toString();
}
if(startFolder == null) {
startFolder = prefix;
log.debug("File root set to: "+startFolder);
} else if(startFolder != null && !prefix.equals(startFolder)) {
throw new InvalidContainerFileException("The container file has an inconsistent file root, was "+startFolder+", now dealing with "+prefix+".");
}
} else {
if(strict) {
throw new InvalidContainerFileException("File found in the container that was not in the correct folder: "+filePath.toString());
} else {
log.warn("Skipping illegal file: " + filePath.toString());
}
ze = zis.getNextEntry();
continue;
}
String insideStartFolder = filePath.toString().substring(startFolder.length());
File newFile = new File(destinationPath + "/" + insideStartFolder);
fileCounter++;
// Create all non exists folders
// else you will hit FileNotFoundException for compressed folder
File newFileParent = new File(newFile.getParent());
if(!newFileParent.exists()) {
log.warn("Unpacking for the first time to folder " + newFileParent.toString() + ".");
newFileParent.mkdirs();
}
FileOutputStream fos = new FileOutputStream(newFile);
int len;
while ((len = zis.read(buffer)) > 0) {
fos.write(buffer, 0, len);
}
fos.close();
ze = zis.getNextEntry();
}
log.info("Extracted "+fileCounter+" files.");
zis.closeEntry();
zis.close();
} catch(IOException ex) {
ex.printStackTrace();
}
}
public static void indexZipFile(String internalRef,
HashMap rdfFiles,
HashMap woaFiles,
HashMap attachments,
HashMap libraryFiles,
boolean strict) {
Path homePath = getTempZipPath().resolve(internalRef);
File folder;
File[] listOfFiles;
folder = new File(homePath.resolve(RDF_PATH).toString());
log.info("Will index "+folder+" for rdf files.");
listOfFiles = folder.listFiles();
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
log.info("Index file as rdf: "+listOfFiles[i].getName());
rdfFiles.put(listOfFiles[i].getName(), listOfFiles[i]);
}
}
folder = new File(homePath.resolve(WOA_PATH).toString());
log.info("Will index "+folder+" for woa files.");
listOfFiles = folder.listFiles();
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
log.info("Index file as woa: "+listOfFiles[i].getName());
woaFiles.put(listOfFiles[i].getName(), listOfFiles[i]);
}
}
folder = new File(homePath.resolve(ONTOLOGIES_PATH).toString());
log.info("Will index "+folder+" for ontology files.");
listOfFiles = folder.listFiles();
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
if(isRdfFile(listOfFiles[i])) {
log.info("Index file as ontology file: "+listOfFiles[i].getName());
Model libraryModel = graphSet.readModel(listOfFiles[i].toURI().toString());
Namespace ns = getLeadingNamespace(listOfFiles[i], libraryModel);
log.info("Found leading namespace " + ns + " for file " + listOfFiles[i].getName()+".");
libraryFiles.put(ns, listOfFiles[i]);
} else {
if(strict) {
throw new InvalidContainerFileException("Failed to interpret file as ontology file: " + listOfFiles[i]);
} else {
log.warn("Failed to interpret file as ontology file: " + listOfFiles[i]);
}
}
}
}
folder = new File(homePath.resolve(ATTACHMENT_PATH).toString());
log.info("Will index "+folder+" for attachment files.");
listOfFiles = folder.listFiles();
int fileCount = 0;
for (int i = 0; i < listOfFiles.length; i++) {
if (listOfFiles[i].isFile()) {
fileCount++;
attachments.put(listOfFiles[i].getName(), listOfFiles[i]);
}
}
log.info("Indexed "+fileCount+" files as attachment.");
}
/**
* Zips all the content of the [TEMP_ZIP_PATH] / [internalRef] to the specified target .ccr-file.
*
* @param target the .ccr-file containing all the content from this container
*/
public static void zip(String internalRef, File target) {
try {
final Path homePath = getTempZipPath().resolve(internalRef);
FileOutputStream fos = new FileOutputStream(target);
final ZipOutputStream zos = new ZipOutputStream(fos);
ZipEntry ze;
File[] files;
// Add bim
ze = new ZipEntry(RDF_PATH+"/");
zos.putNextEntry(ze);
zos.closeEntry();
files = homePath.resolve(RDF_PATH).toFile().listFiles();
for (int i = 0; i < files.length; i++) {
if (!files[i].isDirectory()) {
addFileToZip(files[i].toString(), Paths.get(RDF_PATH).resolve(files[i].getName()), zos);
}
}
// Add bim/repository
ze = new ZipEntry(ONTOLOGIES_PATH+"/");
zos.putNextEntry(ze);
zos.closeEntry();
files = homePath.resolve(ONTOLOGIES_PATH).toFile().listFiles();
for (int i = 0; i < files.length; i++) {
if (!files[i].isDirectory()) {
addFileToZip(files[i].toString(), Paths.get(ONTOLOGIES_PATH).resolve(files[i].getName()), zos);
}
}
// Add doc
ze = new ZipEntry(ATTACHMENT_PATH+"/");
zos.putNextEntry(ze);
zos.closeEntry();
files = homePath.resolve(ATTACHMENT_PATH).toFile().listFiles();
for (int i = 0; i < files.length; i++) {
if (!files[i].isDirectory()) {
addFileToZip(files[i].toString(), Paths.get(ATTACHMENT_PATH).resolve(files[i].getName()), zos);
}
}
// Add woa
ze = new ZipEntry(WOA_PATH+"/");
zos.putNextEntry(ze);
zos.closeEntry();
files = homePath.resolve(WOA_PATH).toFile().listFiles();
for (int i = 0; i < files.length; i++) {
if (!files[i].isDirectory()) {
addFileToZip(files[i].toString(), Paths.get(WOA_PATH).resolve(files[i].getName()), zos);
}
}
zos.close();
} catch(IOException ex) {
ex.printStackTrace();
}
}
private static void addFileToZip(String fromPath, Path zipPath, ZipOutputStream zos) {
// Do dark magic, needed to correct ikvm consequences
String pathInZip = zipPath.toFile().getPath().replace("\\","/");
try {
final byte[] buffer = new byte[1024];
ZipEntry ze = new ZipEntry(pathInZip);
zos.putNextEntry(ze);
log.trace("Adding to zip: "+pathInZip);
// Write file content
FileInputStream in = new FileInputStream(fromPath);
int len;
while ((len = in.read(buffer)) != -1) {
zos.write(buffer, 0, len);
}
zos.closeEntry();
in.close();
} catch(IOException ex) {
ex.printStackTrace();
}
}
public static void destroyAll() {
for(File folder : getFoldersToCleanup()) {
if(folder.isDirectory()) {
try {
log.info("Destroying folder "+folder.toString());
FileUtils.deleteDirectory(folder);
} catch (IOException e) {
log.error(e.getMessage(), e);
}
}
}
}
public static void destroy(String internalRef) {
try {
log.info("Destroying cache folder for "+internalRef);
File homePath = getTempZipPath().resolve(internalRef).toFile();
if(homePath.isDirectory()) {
FileUtils.deleteDirectory(homePath);
}
} catch (IOException e) {
log.error(e.getMessage(), e);
}
}
public static Path placeAttachment(String internalRef, Path attachment) {
Path fileName = attachment.getFileName();
Path homePath = getTempZipPath().resolve(internalRef);
Path attachmentPath = homePath.resolve(ATTACHMENT_PATH);
Path absoluteTempPath = attachmentPath.resolve(fileName);
try {
Files.copy(attachment, absoluteTempPath, StandardCopyOption.REPLACE_EXISTING);
} catch (IOException e) {
log.error(e.getMessage(), e);
}
return absoluteTempPath;
}
public static Path getAttachment(String internalRef, String fileName) {
Path homePath = getTempZipPath().resolve(internalRef);
Path attachmentPath = homePath.resolve(ATTACHMENT_PATH);
Path absoluteTempPath = attachmentPath.resolve(fileName);
return absoluteTempPath;
}
public static Path getAttachmentPath(String internalRef) {
Path homePath = getTempZipPath().resolve(internalRef);
Path attachmentPath = homePath.resolve(ATTACHMENT_PATH);
return attachmentPath;
}
/**
* Return either an url or a file:// url to find the resource
* @param internalRef
* @param resource
* @return
*/
public static URI getLibrary(JenaCoinsContainer container, String internalRef, URI resource) {
log.trace("Get library "+resource+" in "+internalRef);
try {
File file = new File(resource);
if (file.exists()) {
log.trace("Found file as local path " + resource);
copyAndLinkLibrary(internalRef, file);
return file.toURI();
}
} catch(IllegalArgumentException e) {
// try next option, the resource is not a file
}
Namespace resourceAsNs = null;
try {
resourceAsNs = new Namespace(resource.toString());
} catch(InvalidNamespaceException e) {
}
if(resourceAsNs != null) {
if (internalRef != null && container != null) {
if (container.getAvailableLibraryFiles().containsKey(resourceAsNs)) {
File matchingFile = container.getAvailableLibraryFiles().get(resourceAsNs);
log.trace("Found file as previously registered " + matchingFile.getAbsolutePath());
copyAndLinkLibrary(internalRef, matchingFile);
return matchingFile.toURI();
}
}
}
// Alternatively try to resolve the resourceUri online
try {
URL resourceAsUrl = resource.toURL();
HttpURLConnection connection = (HttpURLConnection) resourceAsUrl.openConnection();
connection.setRequestMethod("HEAD");
int responseCode = connection.getResponseCode();
if (responseCode == 200) {
log.info("Found active link online: "+resource);
return resource;
}
} catch (MalformedURLException e) {
} catch (ProtocolException e) {
} catch (IOException e) {
}
log.trace("Import resource can not be found in the ccr and is not available online.");
throw new CoinsResourceNotFoundException("Import resource can not be found in the ccr and is not available online.");
}
public static Namespace getLeadingNamespace(File file, Model model) {
Namespace namespace = null;
// Assume its xml, get the base uri
if(file != null && (file.getName().endsWith(".rdf") || file.getName().endsWith(".xml"))) {
try {
namespace = new Namespace(FileManager.getXmlBaseOrxmlns(file));
} catch (InvalidNamespaceException e) {
log.info(e.getMessage());
}
}
// Try to find the empty prefix if no base uri was found (maybe not xml)
if(namespace == null) {
try {
namespace = new Namespace(model.getNsPrefixURI(""));
log.info("The xmlns="+namespace.toString()+" found while importing file " + file.getName());
} catch(InvalidNamespaceException e) {
log.info("The xmlns not found while importing file " + file.getName());}
}
// If still null, base the model name on the subject of the owl:Ontology object
if(namespace == null) {
ResIterator subjects = model.listSubjectsWithProperty(RDF.type, OWL.Ontology);
if(subjects.hasNext()) {
namespace = new Namespace(subjects.next().asResource().getNameSpace());
log.info("The rdf:type found for owl:Ontology to "+namespace.toString()+", using as namespace while importing file " + file.getName());
}
}
if(namespace == null) {
throw new CoinsNamespaceNotFoundException("No namespace could be found for " + file.getName()+".");
}
return namespace;
}
public static String getXmlBaseOrxmlns(File xmlFile) {
final ArrayList baseUriDropHere = new ArrayList<>();
final ArrayList xmlnsDropHere = new ArrayList<>();
DefaultHandler handler = new DefaultHandler() {
@Override
public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
if("rdf:RDF".equals(qName)) {
for (int i=0; i 0) {
throw new CoinsFileManagerException("The FileManager cache already contains an rdf-file.");
}
try {
Files.copy(source.toPath(), absoluteTempPath, StandardCopyOption.REPLACE_EXISTING);
} catch (IOException e) {
log.error(e.getMessage(), e);
}
}
public static void copyAndLinkLibrary(String internalRef, File source) {
if(internalRef == null) {
throw new CoinsFileManagerException("Registering rdf file in non existing coins container.");
}
Path homePath = getTempZipPath().resolve(internalRef);
Path rdfPath = homePath.resolve(ONTOLOGIES_PATH);
Path absoluteTempPath = rdfPath.resolve(source.getName());
if(absoluteTempPath.toFile().exists()) {
log.info("File "+absoluteTempPath.toString()+" already exists, skipping.");
return;
}
try {
Files.copy(source.toPath(), absoluteTempPath, StandardCopyOption.REPLACE_EXISTING);
log.info("Copied file "+source.getName()+" to "+internalRef+".");
} catch (IOException e) {
log.error(e.getMessage(), e);
}
}
public static Namespace copyAndRegisterLibrary(InputStream stream, String fileName, HashMap availableLibraryFiles) {
if(stream == null) {
log.warn("Failed saving file "+fileName+", stream is null.");
return null;
}
Path copyTo = getTempLibPath().resolve(RandomStringUtils.random(4, true, true));
copyTo.toFile().mkdirs();
URI fullPathUri = copyTo.resolve(fileName).toUri();
File fullPathFile = new File(fullPathUri);
OutputStream resStreamOut = null;
try {
try {
int readBytes;
byte[] buffer = new byte[4096];
resStreamOut = new FileOutputStream(fullPathFile);
while ((readBytes = stream.read(buffer)) > 0) {
resStreamOut.write(buffer, 0, readBytes);
}
} catch (IOException ex) {
log.warn("Problem saving file "+fileName+" to temp folder "+copyTo, ex);
} finally {
stream.close();
resStreamOut.close();
}
} catch (IOException ex) {
log.warn("Problem saving file "+fileName+" to temp folder "+copyTo, ex);
}
Model libraryModel = graphSet.readModel(fullPathUri.toString());
Namespace ns = getLeadingNamespace(fullPathFile, libraryModel);
if(!availableLibraryFiles.containsKey(ns)) {
log.info("Registering for namespace " + ns + " for file " + fileName);
availableLibraryFiles.put(ns,fullPathFile);
} else {
log.info("Skipping, already a file registered for namespace " + ns);
// Remove file and folder too
fullPathFile.delete();
copyTo.toFile().delete();
}
return ns;
}
public static Namespace registerLibrary(URI fileUri, Namespace fallbackNs, HashMap availableLibraryFiles) {
File newFile = new File(fileUri);
Model libraryModel = graphSet.readModel(fileUri.toString());
Namespace ns = fallbackNs;
try {
ns = getLeadingNamespace(newFile, libraryModel);
} catch(CoinsNamespaceNotFoundException e) {
if(fallbackNs==null) {
return null;
}
}
log.info("Registering for namespace "+ns+" for file "+newFile.getName());
availableLibraryFiles.put(ns, newFile);
return ns;
}
private static boolean isRdfFile(File file) {
for(String extension : Arrays.asList(INDEX_AS_RDF)) {
if(file.getName().endsWith(extension)) {
return true;
}
}
return false;
}
// this should be able to be run from everywhere
public static ArrayList listResourceFiles(String path) {
ArrayList result = new ArrayList<>();
while(path.startsWith("/")) {
path = path.substring(1);
}
try {
URI uri = FileManager.class.getResource("/"+path).toURI();
File myPath;
if (uri.getScheme().equals("jar")) {
String jarPath = uri.toString().substring(9, uri.toString().indexOf("!"));
String insideJar = uri.toString().substring(uri.toString().indexOf("!")+1);
while(insideJar.startsWith("/")) {
insideJar = insideJar.substring(1);
}
ZipInputStream zis = new ZipInputStream(new FileInputStream(new File(jarPath)));
ZipEntry ze = zis.getNextEntry();
while (ze != null) {
if (!ze.isDirectory() && ze.getName().startsWith(insideJar)) {
String relativePath = ze.getName().substring(insideJar.length());
while (relativePath.startsWith("/")) {
relativePath = relativePath.substring(1);
}
if (!relativePath.isEmpty()) {
result.add(relativePath);
}
}
ze = zis.getNextEntry();
}
zis.closeEntry();
zis.close();
} else {
myPath = Paths.get(uri).toFile();
File[] directoryListing = myPath.listFiles();
if(directoryListing != null) {
for (File folder : directoryListing ) {
if (folder.isFile()) {
String fullPath = folder.toString();
String relativePath = fullPath.substring(uri.getRawPath().length());
if (!relativePath.isEmpty()) {
result.add(relativePath.substring(1));
}
}
}
}
}
} catch (IOException e) {
} catch (URISyntaxException e) {
}
return result;
}
public static InputStream getResourceFileAsStream(String path) {
while(path.startsWith("/")) {
path = path.substring(1);
}
return FileManager.class.getResourceAsStream("/"+path);
}
}
