private void parse() {
String name = fEditor.getEditorInput().getName();
Reader reader = new StringReader(fEditor.getDocument().get());
Template template = null;
try {
parseHtml();
if (fEditor.getEditorInput() instanceof IFileEditorInput)
((IFileEditorInput) fEditor.getEditorInput())
.getFile()
.deleteMarkers(IMarker.PROBLEM, true, IResource.DEPTH_INFINITE);
RuntimeInstance runtime = VelocityEditorEnvironment.getParser();
SimpleNode root = runtime.parse(reader, name);
// Create tree model
NodeVisitor visitor = new NodeVisitor(name);
root.jjtAccept(visitor, null);
template = visitor.getTemplate();
fError = "";
} catch (ParseException e) {
if (!name.matches(".*?\\.jsp.*")) {
if (e.getMessage() != null) {
fError = e.getMessage();
Token token = e.currentToken;
if (token != null) {
fEditor.addProblemMarker(e.getMessage(), token.next.beginLine, IMarker.SEVERITY_ERROR);
}
} else {
fError = "";
}
}
} catch (Exception e) {
fError = "";
VelocityPlugin.log(e);
} finally {
try {
reader.close();
} catch (IOException e) {
VelocityPlugin.log(e);
}
}
// Replace saved template with the new parsed one
synchronized (this) {
if (template != null) {
fTemplate = template;
// Save last successful parse tree
fLastTemplate = template;
} else {
fTemplate = null;
}
}
// Update outline view and display error message in status line
Display.getDefault()
.syncExec(
new Runnable() {
public void run() {
fEditor.updateOutlinePage();
fEditor.displayErrorMessage(fError);
}
});
reconcile();
}
static {
// Ensure that $undefinedvar will produce an exception rather than outputting $undefinedvar.
velocityRuntimeInstance.setProperty(RuntimeConstants.RUNTIME_REFERENCES_STRICT, "true");
velocityRuntimeInstance.setProperty(
RuntimeConstants.RUNTIME_LOG_LOGSYSTEM_CLASS, new NullLogChute());
velocityRuntimeInstance.setProperty(
RuntimeConstants.RESOURCE_MANAGER_CACHE_CLASS, ResourceCacheImpl.class.getName());
// Setting ResourceCacheImpl is should not be necessary since that is the default value, but
// ensures that Maven shading sees that Apache Commons classes referenced from ResourceCacheImpl
// are indeed referenced and cannot be removed during minimization.
// Disable any logging that Velocity might otherwise see fit to do.
velocityRuntimeInstance.setProperty(RuntimeConstants.RUNTIME_LOG_LOGSYSTEM, new NullLogChute());
// Velocity likes its "managers", LogManager and ResourceManager, which it loads through the
// context class loader. If that loader can see another copy of Velocity then that will lead
// to hard-to-diagnose exceptions during initialization.
Thread currentThread = Thread.currentThread();
ClassLoader oldContextLoader = currentThread.getContextClassLoader();
try {
currentThread.setContextClassLoader(TemplateVars.class.getClassLoader());
velocityRuntimeInstance.init();
} finally {
currentThread.setContextClassLoader(oldContextLoader);
}
}
static SimpleNode parsedTemplateForResource(String templateStr, String resourceName) {
try {
return velocityRuntimeInstance.parse(templateStr, resourceName);
} catch (ParseException e) {
throw new AssertionError(e);
}
}
/**
* Initialize Velocity engine instance, disables logging, sets bundle-relative resource loader.
*/
public static RuntimeInstance createInstance(String bundleID, String templatePrefix) {
try {
final ExtendedProperties p = new ExtendedProperties();
p.setProperty("resource.loader", "bundle");
p.setProperty(
"bundle.resource.loader.instance", new BundleResourceLoader(bundleID, templatePrefix));
p.setProperty(RuntimeConstants.SET_NULL_ALLOWED, "true");
// Disable separate Velocity logging.
p.setProperty(RuntimeConstants.RUNTIME_LOG_LOGSYSTEM_CLASS, NullLogChute.class.getName());
final RuntimeInstance velocity = new RuntimeInstance();
velocity.setConfiguration(p);
return velocity;
} catch (Exception e) {
throw new RuntimeException("Velocity initialization failed.", e);
}
}
/**
* Returns the result of substituting the variables defined by the fields of this class (a
* concrete subclass of TemplateVars) into the template returned by {@link #parsedTemplate()}.
*/
String toText() {
VelocityContext velocityContext = toVelocityContext();
StringWriter writer = new StringWriter();
SimpleNode parsedTemplate = parsedTemplate();
boolean rendered =
velocityRuntimeInstance.render(
velocityContext, writer, parsedTemplate.getTemplateName(), parsedTemplate);
if (!rendered) {
// I don't know when this happens. Usually you get an exception during rendering.
throw new IllegalArgumentException("Template rendering failed");
}
return writer.toString();
}
public VelocitySQLTemplateProcessor() {
this.renderingUtils = new SQLTemplateRenderingUtils();
this.velocityRuntime = new RuntimeInstance();
// set null logger
velocityRuntime.addProperty(RuntimeConstants.RUNTIME_LOG_LOGSYSTEM, new NullLogChute());
velocityRuntime.addProperty(
RuntimeConstants.RESOURCE_MANAGER_CLASS, SQLTemplateResourceManager.class.getName());
velocityRuntime.addProperty("userdirective", BindDirective.class.getName());
velocityRuntime.addProperty("userdirective", BindEqualDirective.class.getName());
velocityRuntime.addProperty("userdirective", BindNotEqualDirective.class.getName());
velocityRuntime.addProperty("userdirective", BindObjectEqualDirective.class.getName());
velocityRuntime.addProperty("userdirective", BindObjectNotEqualDirective.class.getName());
velocityRuntime.addProperty("userdirective", ResultDirective.class.getName());
velocityRuntime.addProperty("userdirective", ChainDirective.class.getName());
velocityRuntime.addProperty("userdirective", ChunkDirective.class.getName());
try {
velocityRuntime.init();
} catch (Exception ex) {
throw new CayenneRuntimeException("Error setting up Velocity RuntimeInstance.", ex);
}
}
static SimpleNode parsedTemplateForResource(String resourceName) {
InputStream in = RetrofitTemplateVars.class.getResourceAsStream(resourceName);
if (in == null) {
throw new IllegalArgumentException("Could not find resource: " + resourceName);
}
try {
Reader reader = new InputStreamReader(in, "UTF-8");
return velocityRuntimeInstance.parse(reader, resourceName);
} catch (UnsupportedEncodingException e) {
throw new AssertionError(e);
} catch (ParseException e) {
throw new AssertionError(e);
}
}
private SimpleNode parse(String template) {
SimpleNode nodeTree = null;
try {
nodeTree = velocityRuntime.parse(new StringReader(template), template);
} catch (ParseException pex) {
throw new CayenneRuntimeException(
"Error parsing template '" + template + "' : " + pex.getMessage());
}
if (nodeTree == null) {
throw new CayenneRuntimeException("Error parsing template " + template);
}
return nodeTree;
}
