/**
* Parse the specified VM node, create a VMStandin for it, and add this to the specified
* container.
*/
private static void legacyPopulateVMForType(
IVMInstallType vmType, Element vmElement, VMDefinitionsContainer container) {
String id = vmElement.getAttribute("name"); // $NON-NLS-1$
if (id != null) {
// Retrieve the 'path' attribute. If none, skip this node.
String installPath = vmElement.getAttribute("path"); // $NON-NLS-1$
if (installPath == null) {
return;
}
// Create a VMStandin for the node and set its 'name' & 'installLocation' attributes
VMStandin vmStandin = new VMStandin(vmType, id);
vmStandin.setName(id); // $NON-NLS-1$
File installLocation = new File(installPath);
// If the path is to the executable (which it should be), chop off last part of path!
if (installLocation.isFile()) {
installLocation = installLocation.getParentFile(); // move up to "bin"
if (installLocation != null && installLocation.getParentFile() != null) {
installLocation =
installLocation.getParentFile(); // this should now be ruby install location
}
}
if (installLocation == null) return;
vmStandin.setInstallLocation(installLocation);
container.addVM(vmStandin);
} else {
LaunchingPlugin.log(
LaunchingMessages.RubyRuntime_VM_element_specified_with_no_id_attribute_2);
}
}
/**
* Parse the specified VM node, create a VMStandin for it, and add this to the specified
* container.
*/
private static void populateVMForType(
IVMInstallType vmType, Element vmElement, VMDefinitionsContainer container) {
String id = vmElement.getAttribute("id"); // $NON-NLS-1$
if (id != null) {
// Retrieve the 'path' attribute. If none, skip this node.
String installPath = vmElement.getAttribute("path"); // $NON-NLS-1$
if (installPath == null) {
return;
}
// Create a VMStandin for the node and set its 'name' & 'installLocation' attributes
VMStandin vmStandin = new VMStandin(vmType, id);
vmStandin.setName(vmElement.getAttribute("name")); // $NON-NLS-1$
File installLocation = new File(installPath);
vmStandin.setInstallLocation(installLocation);
container.addVM(vmStandin);
// Look for subordinate nodes. These may be 'libraryLocation',
// 'libraryLocations' or 'versionInfo'.
NodeList list = vmElement.getChildNodes();
int length = list.getLength();
for (int i = 0; i < length; ++i) {
Node node = list.item(i);
short type = node.getNodeType();
if (type == Node.ELEMENT_NODE) {
Element subElement = (Element) node;
String subElementName = subElement.getNodeName();
if (subElementName.equals("libraryLocation")) { // $NON-NLS-1$
IPath loc = getLibraryLocation(subElement);
vmStandin.setLibraryLocations(new IPath[] {loc});
break;
} else if (subElementName.equals("libraryLocations")) { // $NON-NLS-1$
setLibraryLocations(vmStandin, subElement);
break;
}
}
}
// vm Arguments
String vmArgs = vmElement.getAttribute("vmargs"); // $NON-NLS-1$
if (vmArgs != null && vmArgs.length() > 0) {
vmStandin.setVMArgs(vmArgs);
}
} else {
LaunchingPlugin.log(
LaunchingMessages.RubyRuntime_VM_element_specified_with_no_id_attribute_2);
}
}
/**
* Parse the VM definitions contained in the specified InputStream into the specified container.
*
* <p>The VMs in the returned container are instances of <code>VMStandin</code>.
*
* <p>This method has no side-effects. That is, no notifications are sent for VM adds, changes,
* deletes, and the workbench preferences are not affected.
*
* <p>If the <code>getAsXML</code> method is called on the returned container object, the
* resulting XML will be sematically equivalent (though not necessarily syntactically equivalent)
* as the XML contained in <code>inputStream</code>.
*
* @param inputStream the <code>InputStream</code> containing XML that declares a set of VMs and a
* default VM
* @param container the container to add the VM defs to
* @return VMDefinitionsContainer a container for the VM objects declared in <code>inputStream
* </code>
* @throws IOException if this method fails. Reasons include:
* <ul>
* <li>the XML in <code>inputStream</code> was badly formatted
* <li>the top-level node was not 'vmSettings'
* </ul>
*
* @since 3.2
*/
public static void parseXMLIntoContainer(
InputStream inputStream, VMDefinitionsContainer container) throws IOException {
// Wrapper the stream for efficient parsing
InputStream stream = new BufferedInputStream(inputStream);
// Do the parsing and obtain the top-level node
Element config = null;
try {
DocumentBuilder parser = DocumentBuilderFactory.newInstance().newDocumentBuilder();
parser.setErrorHandler(new DefaultHandler());
config = parser.parse(new InputSource(stream)).getDocumentElement();
} catch (SAXException e) {
throw new IOException(LaunchingMessages.RubyRuntime_badFormat);
} catch (ParserConfigurationException e) {
stream.close();
throw new IOException(LaunchingMessages.RubyRuntime_badFormat);
} finally {
stream.close();
}
String nodeName = config.getNodeName();
if (nodeName.equalsIgnoreCase("runtimeconfig")) {
// Do the legacy stuff
importLegacyInterpreters(config, container);
return;
} else if (!config.getNodeName().equalsIgnoreCase("vmSettings")) { // $NON-NLS-1$
// If the top-level node wasn't what we expected, bail out
throw new IOException(LaunchingMessages.RubyRuntime_badFormat);
}
// Populate the default VM-related fields
container.setDefaultVMInstallCompositeID(config.getAttribute("defaultVM")); // $NON-NLS-1$
// Traverse the parsed structure and populate the VMType to VM Map
NodeList list = config.getChildNodes();
int length = list.getLength();
for (int i = 0; i < length; ++i) {
Node node = list.item(i);
short type = node.getNodeType();
if (type == Node.ELEMENT_NODE) {
Element vmTypeElement = (Element) node;
if (vmTypeElement.getNodeName().equalsIgnoreCase("vmType")) { // $NON-NLS-1$
populateVMTypes(vmTypeElement, container);
}
}
}
}