private Map<String, SpringResource> generateResourceMap(Set<Class<?>> validClasses)
throws GenerateException {
Map<String, SpringResource> resourceMap = new HashMap<String, SpringResource>();
for (Class<?> c : validClasses) {
RequestMapping requestMapping = c.getAnnotation(RequestMapping.class);
String description = "";
// This try/catch block is to stop a bamboo build from failing due to NoClassDefFoundError
// This occurs when a class or method loaded by reflections contains a type that has no
// dependency
try {
resourceMap = analyzeController(c, resourceMap, description);
List<Method> mList = new ArrayList<Method>(Arrays.asList(c.getMethods()));
if (c.getSuperclass() != null) {
mList.addAll(Arrays.asList(c.getSuperclass().getMethods()));
}
} catch (NoClassDefFoundError e) {
LOG.error(e.getMessage());
LOG.info(c.getName());
// exception occurs when a method type or annotation is not recognized by the plugin
} catch (ClassNotFoundException e) {
LOG.error(e.getMessage());
LOG.info(c.getName());
}
}
return resourceMap;
}
private boolean checkForDynamicImport(String className) {
if (packageImports == null) return false;
if (!Character.isJavaIdentifierStart(className.charAt(0))) return false;
if (nonValidImports != null && nonValidImports.contains(className)) return false;
int found = 0;
Class cls = null;
for (String pkg : packageImports) {
try {
cls = Class.forName(pkg + "." + className, true, getClassLoader());
found++;
} catch (ClassNotFoundException e) {
// do nothing.
} catch (NoClassDefFoundError e) {
if (PropertyTools.contains(e.getMessage(), "wrong name")) {
// do nothing. this is a weirdness in the jvm.
// see MVEL-43
} else {
throw e;
}
}
}
if (found > 1) throw new RuntimeException("ambiguous class name: " + className);
if (found == 1) {
addImport(className, cls);
return true;
}
cacheNegativeHitForDynamicImport(className);
return false;
}
private Mod loadCustomMod(URLClassLoader loader, String className)
throws IOException, ClassNotFoundException, IllegalAccessException, InstantiationException {
Class<?> cl = null;
try {
cl = loader.loadClass(className);
} catch (NoClassDefFoundError e) {
Logger.log(Logger.LOG_MOD, "WARNING: skipping %s: %s", className, e.toString());
}
if (cl != null && !cl.isInterface() && Mod.class.isAssignableFrom(cl)) {
int flags = cl.getModifiers();
if (!Modifier.isAbstract(flags) && Modifier.isPublic(flags)) {
return newModInstance(cl.asSubclass(Mod.class));
}
}
return null;
}
private List<Class> findClassesImpl(Class requiredInterface) throws Exception {
logger.debug(
"ServiceLocator finding classes matching interface " + requiredInterface.getName());
List<Class> classes = new ArrayList<Class>();
classResolver.addClassLoader(resourceAccessor.toClassLoader());
for (Class<?> clazz :
classResolver.findImplementations(
requiredInterface, packagesToScan.toArray(new String[packagesToScan.size()]))) {
if (clazz.getAnnotation(LiquibaseService.class) != null
&& clazz.getAnnotation(LiquibaseService.class).skip()) {
continue;
}
if (!Modifier.isAbstract(clazz.getModifiers())
&& !Modifier.isInterface(clazz.getModifiers())
&& Modifier.isPublic(clazz.getModifiers())) {
try {
clazz.getConstructor();
logger.debug(clazz.getName() + " matches " + requiredInterface.getName());
classes.add(clazz);
} catch (NoSuchMethodException e) {
logger.info(
"Can not use "
+ clazz
+ " as a Liquibase service because it does not have a no-argument constructor");
} catch (NoClassDefFoundError e) {
String message =
"Can not use "
+ clazz
+ " as a Liquibase service because "
+ e.getMessage().replace("/", ".")
+ " is not in the classpath";
if (e.getMessage().startsWith("org/yaml/snakeyaml")) {
logger.info(message);
} else {
logger.warning(message);
}
}
}
}
return classes;
}
public BuilderResult buildPackage(
String packageUUID,
boolean force,
String buildMode,
String statusOperator,
String statusDescriptionValue,
boolean enableStatusSelector,
String categoryOperator,
String category,
boolean enableCategorySelector,
String customSelectorName)
throws SerializationException {
PackageItem item = rulesRepository.loadPackageByUUID(packageUUID);
try {
return buildPackage(
item,
force,
createConfiguration(
buildMode,
statusOperator,
statusDescriptionValue,
enableStatusSelector,
categoryOperator,
category,
enableCategorySelector,
customSelectorName));
} catch (NoClassDefFoundError e) {
throw new DetailedSerializationException(
"Unable to find a class that was needed when building the package ["
+ e.getMessage()
+ "]",
"Perhaps you are missing them from the model jars, or from the BRMS itself (lib directory).");
} catch (UnsupportedClassVersionError e) {
throw new DetailedSerializationException(
"Can not build the package. One or more of the classes that are needed were compiled with an unsupported Java version.",
"For example the pojo classes were compiled with Java 1.6 and Guvnor is running on Java 1.5. ["
+ e.getMessage()
+ "]");
}
}
/**
* loads a class from a file or a parent classloader.
*
* @param name of the class to be loaded
* @param lookupScriptFiles if false no lookup at files is done at all
* @param preferClassOverScript if true the file lookup is only done if there is no class
* @param resolve see {@link java.lang.ClassLoader#loadClass(java.lang.String, boolean)}
* @return the class found or the class created from a file lookup
* @throws ClassNotFoundException if the class could not be found
* @throws CompilationFailedException if the source file could not be compiled
*/
public Class loadClass(
final String name, boolean lookupScriptFiles, boolean preferClassOverScript, boolean resolve)
throws ClassNotFoundException, CompilationFailedException {
// look into cache
Class cls = getClassCacheEntry(name);
// enable recompilation?
boolean recompile = isRecompilable(cls);
if (!recompile) return cls;
// try parent loader
ClassNotFoundException last = null;
try {
Class parentClassLoaderClass = super.loadClass(name, resolve);
// always return if the parent loader was successful
if (cls != parentClassLoaderClass) return parentClassLoaderClass;
} catch (ClassNotFoundException cnfe) {
last = cnfe;
} catch (NoClassDefFoundError ncdfe) {
if (ncdfe.getMessage().indexOf("wrong name") > 0) {
last = new ClassNotFoundException(name);
} else {
throw ncdfe;
}
}
// check security manager
SecurityManager sm = System.getSecurityManager();
if (sm != null) {
String className = name.replace('/', '.');
int i = className.lastIndexOf('.');
// no checks on the sun.reflect classes for reflection speed-up
// in particular ConstructorAccessorImpl, MethodAccessorImpl, FieldAccessorImpl and
// SerializationConstructorAccessorImpl
// which are generated at runtime by the JDK
if (i != -1 && !className.startsWith("sun.reflect.")) {
sm.checkPackageAccess(className.substring(0, i));
}
}
// prefer class if no recompilation
if (cls != null && preferClassOverScript) return cls;
// at this point the loading from a parent loader failed
// and we want to recompile if needed.
if (lookupScriptFiles) {
// try groovy file
try {
// check if recompilation already happened.
final Class classCacheEntry = getClassCacheEntry(name);
if (classCacheEntry != cls) return classCacheEntry;
URL source = resourceLoader.loadGroovySource(name);
// if recompilation fails, we want cls==null
Class oldClass = cls;
cls = null;
cls = recompile(source, name, oldClass);
} catch (IOException ioe) {
last = new ClassNotFoundException("IOException while opening groovy source: " + name, ioe);
} finally {
if (cls == null) {
removeClassCacheEntry(name);
} else {
setClassCacheEntry(cls);
}
}
}
if (cls == null) {
// no class found, there should have been an exception before now
if (last == null) throw new AssertionError(true);
throw last;
}
return cls;
}