/**
* Attempts to compile the given InputStream into a Groovy script using the given name
*
* @param in The InputStream to read the Groovy code from
* @param name The name of the class to use
* @param pageName The page name
* @param metaInfo
* @return The compiled java.lang.Class, which is an instance of groovy.lang.Script
*/
private Class<?> compileGroovyPage(
InputStream in, String name, String pageName, GroovyPageMetaInfo metaInfo) {
GroovyClassLoader groovyClassLoader = findOrInitGroovyClassLoader();
// Compile the script into an object
Class<?> scriptClass;
try {
scriptClass = groovyClassLoader.parseClass(DefaultGroovyMethods.getText(in), name);
} catch (CompilationFailedException e) {
LOG.error("Compilation error compiling GSP [" + name + "]:" + e.getMessage(), e);
int lineNumber = GrailsExceptionResolver.extractLineNumber(e);
final int[] lineMappings = metaInfo.getLineNumbers();
if (lineNumber > 0 && lineNumber < lineMappings.length) {
lineNumber = lineMappings[lineNumber - 1];
}
throw new GroovyPagesException(
"Could not parse script [" + name + "]: " + e.getMessage(), e, lineNumber, pageName);
} catch (IOException e) {
throw new GroovyPagesException(
"IO exception parsing script [" + name + "]: " + e.getMessage(), e);
}
return scriptClass;
}
/**
* Parses the groovy script into a class. We store the Class instead of the script proper so that
* it doesn't invoke race conditions on multiple executions of the script.
*/
private void createGroovyClass() {
try {
GroovyClassLoader loader = new GroovyClassLoader(getClassLoader());
InputStream scriptIs = getScriptInputStream();
GroovyCodeSource groovyCodeSource =
new GroovyCodeSource(scriptIs, "nanocontainer.groovy", "groovyGeneratedForNanoContainer");
scriptClass = loader.parseClass(groovyCodeSource);
} catch (CompilationFailedException e) {
throw new GroovyCompilationException("Compilation Failed '" + e.getMessage() + "'", e);
} catch (IOException e) {
throw new NanoContainerMarkupException(e);
}
}
// TODO Cache these...though this will hurt hot-reloading. Perhaps a debug mode configuration?
private Template getTemplate(final String acceptHeader, final String templateKey)
throws AproxGroovyException {
final String accept = (acceptHeader == null ? "" : acceptHeader.replace('/', '_') + "/");
try {
final String filename = accept + templateKey + ".groovy";
final DataFile templateFile = manager.getDataFile(TEMPLATES, filename);
logger.info(
"Looking for template: {} for ACCEPT header: {} in: {}",
templateKey,
acceptHeader,
templateFile);
Template template;
if (templateFile.exists() && !templateFile.isDirectory()) {
template = engine.createTemplate(templateFile.readString());
} else {
final String urlpath = TEMPLATES + "/" + accept + templateKey + ".groovy";
logger.info(
"Looking for template: {} for ACCEPT header: {} in: {}",
templateKey,
acceptHeader,
urlpath);
final URL u = Thread.currentThread().getContextClassLoader().getResource(urlpath);
template = u == null ? null : engine.createTemplate(u);
}
if (template == null) {
throw new AproxGroovyException(
"Failed to locate template: %s (with ACCEPT header: %s)", templateKey, acceptHeader);
}
return template;
} catch (final CompilationFailedException e) {
throw new AproxGroovyException(
"Failed to compile template: %s. Reason: %s", e, templateKey, e.getMessage());
} catch (final ClassNotFoundException e) {
throw new AproxGroovyException(
"Failed to compile template: %s. Reason: %s", e, templateKey, e.getMessage());
} catch (final IOException e) {
throw new AproxGroovyException(
"Failed to read template: %s. Reason: %s", e, templateKey, e.getMessage());
}
}
/**
* Parses a script
*
* @param clazzName
* @param sourceCode
* @return
*/
public String parseScript(String clazzName, String sourceCode) {
String compilationError = null;
int lastIndexOf = clazzName.lastIndexOf(".");
String codeBase = clazzName;
if (lastIndexOf != -1) {
codeBase = clazzName.substring(0, lastIndexOf);
}
GroovyCodeSource groovyCodeSource = new GroovyCodeSource(sourceCode, clazzName, codeBase);
try {
Class<?> parsedClass = groovyClassLoader.parseClass(groovyCodeSource, false);
availableClasses.put(clazzName, parsedClass);
} catch (CompilationFailedException e) {
compilationError = "Compilation for " + clazzName + " failed with " + e.getMessage();
LOGGER.warn(compilationError);
} catch (Exception ex) {
compilationError = "Parsing class " + clazzName + " failed with " + ex.getMessage();
LOGGER.warn(compilationError);
}
return compilationError;
}
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
PollStatus serviceStatus = PollStatus.unavailable("Poll not completed yet");
TimeoutTracker tracker =
new TimeoutTracker(parameters, DEFAULT_SEQUENCE_RETRY, DEFAULT_TIMEOUT);
for (tracker.reset();
tracker.shouldRetry() && !serviceStatus.isAvailable();
tracker.nextAttempt()) {
String seleniumTestFilename = getGroovyFilename(parameters);
try {
Map<String, Number> responseTimes = new HashMap<String, Number>();
responseTimes.put(PollStatus.PROPERTY_RESPONSE_TIME, Double.NaN);
tracker.startAttempt();
Result result =
runTest(
getBaseUrl(parameters, svc),
getTimeout(parameters),
createGroovyClass(seleniumTestFilename));
double responseTime = tracker.elapsedTimeInMillis();
responseTimes.put(PollStatus.PROPERTY_RESPONSE_TIME, responseTime);
if (result.wasSuccessful()) {
serviceStatus = PollStatus.available();
serviceStatus.setProperties(responseTimes);
} else {
serviceStatus = PollStatus.unavailable(getFailureMessage(result, svc));
}
} catch (CompilationFailedException e) {
serviceStatus =
PollStatus.unavailable(
"Selenium page sequence attempt on:"
+ svc.getIpAddr()
+ " failed : selenium-test compilation error "
+ e.getMessage());
String reason = "Selenium sequence failed: CompilationFailedException" + e.getMessage();
SeleniumMonitor.LOG.debug(reason);
PollStatus.unavailable(reason);
} catch (IOException e) {
serviceStatus =
PollStatus.unavailable(
"Selenium page sequence attempt on "
+ svc.getIpAddr()
+ " failed: IOException occurred, failed to find selenium-test: "
+ seleniumTestFilename);
String reason = "Selenium sequence failed: IOException: " + e.getMessage();
SeleniumMonitor.LOG.debug(reason);
PollStatus.unavailable(reason);
} catch (Exception e) {
serviceStatus =
PollStatus.unavailable(
"Selenium page sequence attempt on "
+ svc.getIpAddr()
+ " failed:\n"
+ e.getMessage());
String reason = "Selenium sequence failed: Exception: " + e.getMessage();
SeleniumMonitor.LOG.debug(reason);
PollStatus.unavailable(reason);
}
}
return serviceStatus;
}
