/**
* Parse the given URL as an antlib descriptor an return the content as something that can be
* turned into an Antlib task.
*
* <p>simply delegates to {@link #parseUnknownElement parseUnknownElement} if the resource
* provides an URL and throws an exceptipn otherwise.
*
* @since Ant 1.8.0
*/
public UnknownElement parseAntlibDescriptor(Project containingProject, Resource resource) {
URLProvider up = (URLProvider) resource.as(URLProvider.class);
if (up == null) {
throw new BuildException("Unsupported resource type: " + resource);
}
return parseUnknownElement(containingProject, up.getURL());
}
/**
* Parses the project file, configuring the project as it goes.
*
* @param project the current project
* @param source the xml source
* @param handler the root handler to use (contains the current context)
* @exception BuildException if the configuration is invalid or cannot be read
*/
public void parse(Project project, Object source, RootHandler handler) throws BuildException {
AntXMLContext context = handler.context;
File buildFile = null;
URL url = null;
String buildFileName = null;
if (source instanceof File) {
buildFile = (File) source;
} else if (source instanceof URL) {
url = (URL) source;
} else if (source instanceof Resource) {
FileProvider fp = (FileProvider) ((Resource) source).as(FileProvider.class);
if (fp != null) {
buildFile = fp.getFile();
} else {
URLProvider up = (URLProvider) ((Resource) source).as(URLProvider.class);
if (up != null) {
url = up.getURL();
}
}
}
if (buildFile != null) {
buildFile = FILE_UTILS.normalize(buildFile.getAbsolutePath());
context.setBuildFile(buildFile);
buildFileName = buildFile.toString();
} else if (url != null) {
try {
context.setBuildFile((File) null);
context.setBuildFile(url);
} catch (java.net.MalformedURLException ex) {
throw new BuildException(ex);
}
buildFileName = url.toString();
} else {
throw new BuildException(
"Source " + source.getClass().getName() + " not supported by this plugin");
}
InputStream inputStream = null;
InputSource inputSource = null;
ZipFile zf = null;
try {
/** SAX 2 style parser used to parse the given file. */
XMLReader parser = JAXPUtils.getNamespaceXMLReader();
String uri = null;
if (buildFile != null) {
uri = FILE_UTILS.toURI(buildFile.getAbsolutePath());
inputStream = new FileInputStream(buildFile);
} else {
uri = url.toString();
int pling = -1;
if (uri.startsWith("jar:file") && (pling = uri.indexOf("!/")) > -1) {
zf = new ZipFile(org.apache.tools.ant.launch.Locator.fromJarURI(uri), "UTF-8");
inputStream = zf.getInputStream(zf.getEntry(uri.substring(pling + 1)));
} else {
inputStream = url.openStream();
}
}
inputSource = new InputSource(inputStream);
if (uri != null) {
inputSource.setSystemId(uri);
}
project.log(
"parsing buildfile "
+ buildFileName
+ " with URI = "
+ uri
+ (zf != null ? " from a zip file" : ""),
Project.MSG_VERBOSE);
DefaultHandler hb = handler;
parser.setContentHandler(hb);
parser.setEntityResolver(hb);
parser.setErrorHandler(hb);
parser.setDTDHandler(hb);
parser.parse(inputSource);
} catch (SAXParseException exc) {
Location location =
new Location(exc.getSystemId(), exc.getLineNumber(), exc.getColumnNumber());
Throwable t = exc.getException();
if (t instanceof BuildException) {
BuildException be = (BuildException) t;
if (be.getLocation() == Location.UNKNOWN_LOCATION) {
be.setLocation(location);
}
throw be;
}
throw new BuildException(exc.getMessage(), t == null ? exc : t, location);
} catch (SAXException exc) {
Throwable t = exc.getException();
if (t instanceof BuildException) {
throw (BuildException) t;
}
throw new BuildException(exc.getMessage(), t == null ? exc : t);
} catch (FileNotFoundException exc) {
throw new BuildException(exc);
} catch (UnsupportedEncodingException exc) {
throw new BuildException("Encoding of project file " + buildFileName + " is invalid.", exc);
} catch (IOException exc) {
throw new BuildException(
"Error reading project file " + buildFileName + ": " + exc.getMessage(), exc);
} finally {
FileUtils.close(inputStream);
ZipFile.closeQuietly(zf);
}
}