public String readFileFromJAR(String filepath) {
String out = "";
try {
// setup input buffer
ClassLoader cl = this.getClass().getClassLoader();
InputStream instream = cl.getResourceAsStream(filepath);
BufferedReader filereader = new BufferedReader(new InputStreamReader(instream));
// read lines
String line = filereader.readLine();
while (line != null) {
out += "\n" + line;
line = filereader.readLine();
}
filereader.close();
} catch (Exception e) {
// e.printStackTrace();
}
return out;
}
/**
* Returns an input stream to the resource.
*
* @param resource The path leading to the resource. Can be an URL, a path leading to a class
* resource or a {@link File}.
* @return InputStream instance.
* @throws IOException If the resource could not be found or opened.
*/
public static InputStream openInputStream(String resource) throws IOException {
try {
// See if the resource is an URL first.
final URL url = new URL(resource);
// success, load the resource.
return url.openStream();
} catch (MalformedURLException e) {
// No luck. Fallback to class loader paths.
}
// Try current thread's class loader first.
final ClassLoader ldr = Thread.currentThread().getContextClassLoader();
InputStream is;
if (ldr != null && (is = ldr.getResourceAsStream(resource)) != null) {
return is;
} else if ((is = ResourceUtils.class.getResourceAsStream(resource)) != null) {
return is;
} else if ((is = ClassLoader.getSystemResourceAsStream(resource)) != null) {
return is;
}
// Try file path
final File f = new File(resource);
if (f.exists() && f.isFile() && f.canRead()) {
return new FileInputStream(f);
}
throw new IOException("Could not locate resource: " + resource);
}
private static synchronized String getJavascript() {
if (jstext == null) {
InputStream istr = null;
try {
ClassLoader loader = Thread.currentThread().getContextClassLoader();
istr = loader.getResourceAsStream(JAVASCRIPT_RESOURCE);
jstext = StringUtil.fromInputStream(istr);
istr.close();
} catch (Exception e) {
log.error("Can't load javascript", e);
} finally {
IOUtil.safeClose(istr);
}
}
return jstext;
}