Java Code Examples for java.net.JarURLConnection#getJarFile()
The following examples show how to use
java.net.JarURLConnection#getJarFile() .
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Example 1
| Source File: DalClassScanner.java From dal with Apache License 2.0 | 6 votes |
|
private void findClasses(List<Class<?>> classList, String packageName, URL url, boolean recursive) throws Throwable {
JarURLConnection jarURLConnection = (JarURLConnection) url.openConnection();
JarFile jarFile = jarURLConnection.getJarFile();
Enumeration<JarEntry> jarEntries = jarFile.entries();
// jarCount.incrementAndGet();
// LOGGER.info("Scanning jar: " + jarFile.getName());
while (jarEntries.hasMoreElements()) {
try {
JarEntry jarEntry = jarEntries.nextElement();
String jarEntryName = jarEntry.getName();
String jarEntryClassName = getClassName(jarEntryName);
if (jarEntryClassName != null) {
String jarEntryPackageName = getPackageName(jarEntryClassName);
if (jarEntryPackageName.equals(packageName) ||
(recursive && jarEntryPackageName.startsWith(packageName))) {
tryAddClass(classList, jarEntryClassName);
}
}
} catch (Throwable t) {
LOGGER.warn(t.getMessage(), t);
}
}
}
Example 2
| Source File: ResourceReader.java From emissary with Apache License 2.0 | 6 votes |
|
/**
* Find resources for the specified class from the Jar URL This finds resources at multiple levels at ones. For example
* if you pass in emissary.util.Version.class with the ".cfg" suffix, you could get back resources that are located at
* emissary/util/Version.cfg and emissary/util/Version/foo.cfg in the list.
*
* @param c the class
* @param url the jar url
* @param suffix the ending suffix of desired resources
* @return list of resources found
*/
public List<String> getJarResourcesFor(Class<?> c, URL url, String suffix) {
List<String> results = new ArrayList<String>();
try {
JarURLConnection jc = (JarURLConnection) url.openConnection();
JarFile jf = jc.getJarFile();
String cmatch = getResourceName(c);
for (Enumeration<JarEntry> entries = jf.entries(); entries.hasMoreElements();) {
JarEntry entry = entries.nextElement();
String name = entry.getName();
if (name.startsWith(cmatch) && name.endsWith(suffix)) {
results.add(name);
}
}
logger.debug("Found {} jar resources for {}", results.size(), cmatch);
} catch (IOException ex) {
logger.warn("Cannot get jar url connection to {}", url, ex);
}
return results;
}
Example 3
| Source File: ClassPathScanner.java From validator-web with Apache License 2.0 | 6 votes |
|
protected void findClasses(Set<Class<?>> classes, ClassLoader classLoader,
String packageName, JarURLConnection connection) throws IOException {
JarFile jarFile = connection.getJarFile();
if (jarFile == null) {
return;
}
Enumeration<JarEntry> entries = jarFile.entries();
while (entries.hasMoreElements()) {
JarEntry entry = entries.nextElement();
String name = entry.getName();
if (name.endsWith(CLASS_SUFFIX) && name.startsWith(packageName)) {
String className = name.replace('/', '.').replace(CLASS_SUFFIX, "");
try {
Class<?> c = ClassUtils.forName(className, classLoader);
classes.add(c);
} catch (ClassNotFoundException e) {
// ignore
e.printStackTrace();
}
}
}
}
Example 4
| Source File: WellKnowns.java From libreveris with GNU Lesser General Public License v3.0 | 6 votes |
|
private static JarFile getJarFile ()
{
try {
String rn = WellKnowns.class.getName()
.replace('.', '/')
+ ".class";
Enumeration<URL> en = WellKnowns.class.getClassLoader()
.getResources(rn);
if (en.hasMoreElements()) {
URL url = en.nextElement();
// url = jar:http://audiveris.kenai.com/jnlp/audiveris.jar!/omr/WellKnowns.class
JarURLConnection urlcon = (JarURLConnection) (url.openConnection());
JarFile jarFile = urlcon.getJarFile();
return jarFile;
}
} catch (Exception ex) {
System.out.print("Error getting jar file " + ex);
}
return null;
}
Example 5
| Source File: TemplateUtil.java From Vert.X-generator with MIT License | 5 votes |
|
/**
* 将jar里面的文件复制到模板文件夹
*
* @param jarConn
* @return
* @throws IOException
*/
public static void jarCreateTemplate(JarURLConnection jarConn) throws IOException {
try (JarFile jarFile = jarConn.getJarFile()) {
Enumeration<JarEntry> entrys = jarFile.entries();
while (entrys.hasMoreElements()) {
JarEntry entry = entrys.nextElement();
if (entry.getName().startsWith(jarConn.getEntryName()) && !entry.getName().endsWith("/")) {
String fileName = entry.getName().replace(TEMPLATE_DIR + "/", "");
InputStream inpt = Thread.currentThread().getContextClassLoader().getResourceAsStream(entry.getName());
Files.copy(inpt, Paths.get(TEMPLATE_DIR, fileName));
}
}
}
}
Example 6
| Source File: SingleJarDownloader.java From maple-ir with GNU General Public License v3.0 | 5 votes |
|
@Override
public void download() throws IOException {
URL url = null;
JarURLConnection connection = (JarURLConnection) (url = new URL(jarInfo.formattedURL())).openConnection();
JarFile jarFile = connection.getJarFile();
Enumeration<JarEntry> entries = jarFile.entries();
contents = new LocateableJarContents<>(url);
Map<String, ClassNode> map = new HashMap<>();
while (entries.hasMoreElements()) {
JarEntry entry = entries.nextElement();
byte[] bytes = read(jarFile.getInputStream(entry));
if (entry.getName().endsWith(".class")) {
C cn = factory.create(bytes, entry.getName());
if(!map.containsKey(cn.getName())) {
contents.getClassContents().add(cn);
} else {
throw new IllegalStateException("duplicate: " + cn.getName());
}
//if(cn.name.equals("org/xmlpull/v1/XmlPullParser")) {
// System.out.println("SingleJarDownloader.download() " +entry.getName() + " " + bytes.length);
//}
} else {
JarResource resource = new JarResource(entry.getName(), bytes);
contents.getResourceContents().add(resource);
}
}
}
Example 7
| Source File: BaseDirContext.java From tomcatsrc with Apache License 2.0 | 5 votes |
|
/**
* Add a resources JAR. The contents of /META-INF/resources/ will be used if
* a requested resource can not be found in the main context.
*/
public void addResourcesJar(URL url) {
try {
JarURLConnection conn = (JarURLConnection) url.openConnection();
JarFile jarFile = conn.getJarFile();
ZipEntry entry = jarFile.getEntry("/");
WARDirContext warDirContext = new WARDirContext(jarFile,
new WARDirContext.Entry("/", entry));
warDirContext.loadEntries();
altDirContexts.add(warDirContext);
} catch (IOException ioe) {
log.warn(sm.getString("resources.addResourcesJarFail", url), ioe);
}
}
Example 8
| Source File: ReflectUtils.java From festival with Apache License 2.0 | 5 votes |
|
/**
* 根据包名获取Class
*
* @param packageName 包名
* @return 返回一个Class集合，如果包名为null或者空字符串，则返回空集合
*/
public static Set<Class<?>> getClasses(String packageName) {
if (packageName == null || "".equals(packageName)) {
return Collections.emptySet();
}
//将包名改为相对路径
String packagePath = packageName.replace(".", "/");
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
Set<Class<?>> classes = new HashSet<>();
try {
//扫描包路径，返回资源的枚举
Enumeration<URL> dirs = classLoader.getResources(packagePath);
while (dirs.hasMoreElements()) {
URL fileUrl = dirs.nextElement();
String filePath = fileUrl.getPath();
//判断资源类型
if (FILE_PROTOCOL.equals(fileUrl.getProtocol())) {
//处理文件类型的Class
classes.addAll(getClassesByFilePath(filePath, packagePath));
} else if (JAR_PROTOCOL.equals(fileUrl.getProtocol())) {
//处理Jar包中的Class
JarURLConnection jarURLConnection = (JarURLConnection) fileUrl.openConnection();
JarFile jarFile = jarURLConnection.getJarFile();
classes.addAll(getClassesByJar(jarFile));
}
}
} catch (IOException e) {
e.printStackTrace();
}
return classes;
}
Example 9
| Source File: JarIndexLocation.java From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0 | 5 votes |
|
InputStream getInputStream() throws IOException {
if (this.jarFile == null) {
JarURLConnection connection = (JarURLConnection) this.localUrl.openConnection();
this.jarFile = connection.getJarFile();
this.jarEntry = connection.getJarEntry();
}
if (this.jarFile == null || this.jarEntry == null)
return null;
return this.jarFile.getInputStream(this.jarEntry);
}
Example 10
| Source File: ClassUtil0.java From PeonyFramwork with Apache License 2.0 | 5 votes |
|
/**
* 第三方Jar类库的引用。<br/>
*
* @throws IOException
*/
static void findClassName(List<Class<?>> clazzList, String pkgName, URL url, boolean isRecursive, Class<?> superClass) throws IOException {
JarURLConnection jarURLConnection = (JarURLConnection) url.openConnection();
JarFile jarFile = jarURLConnection.getJarFile();
logger.debug("jarFile:" + jarFile.getName());
Enumeration<JarEntry> jarEntries = jarFile.entries();
while (jarEntries.hasMoreElements()) {
JarEntry jarEntry = jarEntries.nextElement();
String jarEntryName = jarEntry.getName(); // 类似：sun/security/internal/interfaces/TlsMasterSecret.class
String clazzName = jarEntryName.replace("/", ".");
int endIndex = clazzName.lastIndexOf(".");
String prefix = null;
if (endIndex > 0) {
String prefix_name = clazzName.substring(0, endIndex);
endIndex = prefix_name.lastIndexOf(".");
if (endIndex > 0) {
prefix = prefix_name.substring(0, endIndex);
}
}
if (prefix != null && jarEntryName.endsWith(".class")) {
if (prefix.equals(pkgName)) {
logger.debug("jar entryName:" + jarEntryName);
addClassName(clazzList, clazzName, superClass);
} else if (isRecursive && prefix.startsWith(pkgName)) {
// 遍历子包名：子类
logger.debug("jar entryName:" + jarEntryName + " isRecursive:" + isRecursive);
addClassName(clazzList, clazzName, superClass);
}
}
}
}
Example 11
| Source File: ModuleInstaller.java From snap-desktop with GNU General Public License v3.0 | 5 votes |
|
private String getCurrentJarPath() {
String path = null;
try {
URL url = this.getClass().getProtectionDomain().getCodeSource().getLocation();
JarURLConnection connection = (JarURLConnection) url.openConnection();
JarFile jarFile = connection.getJarFile();
path = jarFile.getName();
} catch (IOException e) {
logger.severe(e.getMessage());
}
return path;
}
Example 12
| Source File: JarURLResource.java From Tomcat7.0.67 with Apache License 2.0 | 5 votes |
|
@Override
public JarFile getJarFile() throws IOException {
URL jarFileUrl = new URL("jar:" + jarUrl + "!/");
JarURLConnection conn = (JarURLConnection) jarFileUrl.openConnection();
conn.setUseCaches(false);
conn.connect();
return conn.getJarFile();
}
Example 13
| Source File: JarIndexLocation.java From Eclipse-Postfix-Code-Completion with Eclipse Public License 1.0 | 5 votes |
|
public boolean exists() {
try {
if (this.jarFile == null) {
JarURLConnection connection = (JarURLConnection) this.localUrl.openConnection();
JarFile file = connection.getJarFile();
if (file == null)
return false;
file.close();
}
} catch (IOException e) {
return false;
}
return true;
}
Example 14
| Source File: PackageScanner.java From Summer with MIT License | 4 votes |
|
public List<Class<?>> scan(String packagename) throws IOException, ClassNotFoundException {
if (!StringUtils.isEmpty(packagename)) {
Enumeration<URL> urls = Thread.currentThread().getContextClassLoader()
.getResources(packagename.replaceAll("\\.", "/"));
List<Class<?>> classList = new ArrayList<Class<?>>();
while (urls.hasMoreElements()) {
URL url = urls.nextElement();
String protocl = url.getProtocol();
if (FILE_PROTOCL.equals(protocl)) {
String packagePath = url.getPath().replaceAll("%20", " ");
addClass(classList, packagePath, packagename);
} else if (JAR_PROTOCL.equals(protocl)) {
JarURLConnection jarURLConnection = (JarURLConnection) url.openConnection();
JarFile jarFile = jarURLConnection.getJarFile();
Enumeration<JarEntry> jarEntrys = jarFile.entries();
while (jarEntrys.hasMoreElements()) {
JarEntry jarEntry = jarEntrys.nextElement();
String jarEntryName = jarEntry.getName();
if (jarEntryName.equals(CLASS_SUFFIX)) {
String className = jarEntryName.substring(0, jarEntryName.indexOf(".")).replaceAll("/",
".");
Class<?> cls = Class.forName(className, true,
Thread.currentThread().getContextClassLoader());
if (checkAdd(cls)) {
classList.add(cls);
}
}
}
}
}
return classList;
}
return null;
}
Example 15
| Source File: DeleteTempJar.java From TencentKona-8 with GNU General Public License v2.0 | 4 votes |
|
public static void realMain(String args[]) throws Exception
{
final File zf = File.createTempFile("deletetemp", ".jar");
zf.deleteOnExit();
try (FileOutputStream fos = new FileOutputStream(zf);
JarOutputStream jos = new JarOutputStream(fos))
{
JarEntry je = new JarEntry("entry");
jos.putNextEntry(je);
jos.write("hello, world".getBytes("ASCII"));
}
HttpServer server = HttpServer.create(
new InetSocketAddress((InetAddress) null, 0), 0);
HttpContext context = server.createContext("/",
new HttpHandler() {
public void handle(HttpExchange e) {
try (FileInputStream fis = new FileInputStream(zf)) {
e.sendResponseHeaders(200, zf.length());
OutputStream os = e.getResponseBody();
byte[] buf = new byte[1024];
int count = 0;
while ((count = fis.read(buf)) != -1) {
os.write(buf, 0, count);
}
} catch (Exception ex) {
unexpected(ex);
} finally {
e.close();
}
}
});
server.start();
URL url = new URL("jar:http://localhost:"
+ new Integer(server.getAddress().getPort()).toString()
+ "/deletetemp.jar!/");
JarURLConnection c = (JarURLConnection)url.openConnection();
JarFile f = c.getJarFile();
check(f.getEntry("entry") != null);
System.out.println(f.getName());
server.stop(0);
}
Example 16
| Source File: FileUrlJar.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
public FileUrlJar(URL url) throws IOException {
JarURLConnection jarConn = (JarURLConnection) url.openConnection();
jarConn.setUseCaches(false);
jarFile = jarConn.getJarFile();
}
Example 17
| Source File: DeleteTempJar.java From openjdk-jdk9 with GNU General Public License v2.0 | 4 votes |
|
public static void realMain(String args[]) throws Exception
{
final File zf = File.createTempFile("deletetemp", ".jar");
zf.deleteOnExit();
try (FileOutputStream fos = new FileOutputStream(zf);
JarOutputStream jos = new JarOutputStream(fos))
{
JarEntry je = new JarEntry("entry");
jos.putNextEntry(je);
jos.write("hello, world".getBytes("ASCII"));
}
HttpServer server = HttpServer.create(
new InetSocketAddress((InetAddress) null, 0), 0);
HttpContext context = server.createContext("/",
new HttpHandler() {
public void handle(HttpExchange e) {
try (FileInputStream fis = new FileInputStream(zf)) {
e.sendResponseHeaders(200, zf.length());
OutputStream os = e.getResponseBody();
byte[] buf = new byte[1024];
int count = 0;
while ((count = fis.read(buf)) != -1) {
os.write(buf, 0, count);
}
} catch (Exception ex) {
unexpected(ex);
} finally {
e.close();
}
}
});
server.start();
URL url = new URL("jar:http://localhost:"
+ new Integer(server.getAddress().getPort()).toString()
+ "/deletetemp.jar!/");
JarURLConnection c = (JarURLConnection)url.openConnection();
JarFile f = c.getJarFile();
check(f.getEntry("entry") != null);
System.out.println(f.getName());
server.stop(0);
}
Example 18
| Source File: DeleteTempJar.java From jdk8u-jdk with GNU General Public License v2.0 | 4 votes |
|
public static void realMain(String args[]) throws Exception
{
final File zf = File.createTempFile("deletetemp", ".jar");
zf.deleteOnExit();
try (FileOutputStream fos = new FileOutputStream(zf);
JarOutputStream jos = new JarOutputStream(fos))
{
JarEntry je = new JarEntry("entry");
jos.putNextEntry(je);
jos.write("hello, world".getBytes("ASCII"));
}
HttpServer server = HttpServer.create(
new InetSocketAddress((InetAddress) null, 0), 0);
HttpContext context = server.createContext("/",
new HttpHandler() {
public void handle(HttpExchange e) {
try (FileInputStream fis = new FileInputStream(zf)) {
e.sendResponseHeaders(200, zf.length());
OutputStream os = e.getResponseBody();
byte[] buf = new byte[1024];
int count = 0;
while ((count = fis.read(buf)) != -1) {
os.write(buf, 0, count);
}
} catch (Exception ex) {
unexpected(ex);
} finally {
e.close();
}
}
});
server.start();
URL url = new URL("jar:http://localhost:"
+ new Integer(server.getAddress().getPort()).toString()
+ "/deletetemp.jar!/");
JarURLConnection c = (JarURLConnection)url.openConnection();
JarFile f = c.getJarFile();
check(f.getEntry("entry") != null);
System.out.println(f.getName());
server.stop(0);
}
Example 19
| Source File: JarSignatureVerifier.java From multiapps-controller with Apache License 2.0 | 4 votes |
|
private JarFile openJarFile(URL jarFileUrl) throws IOException {
JarURLConnection connection = (JarURLConnection) toJarUrl(jarFileUrl).openConnection();
return connection.getJarFile();
}
Example 20
| Source File: DeleteTempJar.java From jdk8u-dev-jdk with GNU General Public License v2.0 | 4 votes |
|
public static void realMain(String args[]) throws Exception
{
final File zf = File.createTempFile("deletetemp", ".jar");
zf.deleteOnExit();
try (FileOutputStream fos = new FileOutputStream(zf);
JarOutputStream jos = new JarOutputStream(fos))
{
JarEntry je = new JarEntry("entry");
jos.putNextEntry(je);
jos.write("hello, world".getBytes("ASCII"));
}
HttpServer server = HttpServer.create(
new InetSocketAddress((InetAddress) null, 0), 0);
HttpContext context = server.createContext("/",
new HttpHandler() {
public void handle(HttpExchange e) {
try (FileInputStream fis = new FileInputStream(zf)) {
e.sendResponseHeaders(200, zf.length());
OutputStream os = e.getResponseBody();
byte[] buf = new byte[1024];
int count = 0;
while ((count = fis.read(buf)) != -1) {
os.write(buf, 0, count);
}
} catch (Exception ex) {
unexpected(ex);
} finally {
e.close();
}
}
});
server.start();
URL url = new URL("jar:http://localhost:"
+ new Integer(server.getAddress().getPort()).toString()
+ "/deletetemp.jar!/");
JarURLConnection c = (JarURLConnection)url.openConnection();
JarFile f = c.getJarFile();
check(f.getEntry("entry") != null);
System.out.println(f.getName());
server.stop(0);
}
