public static ExecutionEnvironment instance() {
if (INSTANCES.size() == 1) {
return THE_ONE == null ? THE_ONE = INSTANCES.values().iterator().next() : THE_ONE;
}
IModule mod = INSTANCES.size() > 0 ? TypeSystem.getCurrentModule() : null;
if (mod != null) {
ExecutionEnvironment execEnv = (ExecutionEnvironment) mod.getExecutionEnvironment();
if (execEnv == null) {
throw new IllegalStateException(
"Module, " + mod.getName() + ", has a null execution environment. This is bad.");
}
return execEnv;
}
if (INSTANCES.size() > 0) {
// Return first non-default project
// Yes, this is a guess, but we need to guess for the case where we're running tests
// and loading classes in lots of threads where the current module is not pushed
for (ExecutionEnvironment execEnv : INSTANCES.values()) {
if (execEnv.getProject() != DEFAULT_PROJECT && !execEnv.getProject().isDisposed()) {
return execEnv;
}
}
}
return instance(DEFAULT_PROJECT);
}
void checkForDuplicates(String moduleName) {
for (IModule m : getModules()) {
if (m.getName().equals(moduleName)) {
throw new RuntimeException("Module " + moduleName + " allready exists.");
}
}
}
public IModule getModule(String strModuleName) {
for (IModule m : _modules) {
if (m.getName().equals(strModuleName)) {
return m;
}
}
if (isSingleModuleMode() && GLOBAL_MODULE_NAME.equals(strModuleName)) {
return getGlobalModule();
}
return null;
}
public void addModule(IModule module) {
checkForDuplicates(module.getName());
// noinspection unchecked
_modules.add(module);
module.update();
pushModule(module);
try {
((Module) module).initializeTypeLoaders();
} finally {
popModule(module);
}
}