private ModuleScope loadModule()

in src/main/java/org/apache/sling/scripting/javascript/helper/SlingGlobal.java [239:328]
68 lines of code
15 McCabe index (conditional complexity)

	private ModuleScope loadModule(Context cx, String modulePath,
			ModuleScope moduleScope, Scriptable thisObj) {
		String absolutePath = modulePath;
		if (modulePath.startsWith(".")) {
			// relative
			if (moduleScope == null) {
				throw Context
						.reportRuntimeError("Cannot resolve relative module name outside of a module scope.");
			}
			absolutePath = (moduleScope.getModuleName() + "/" + modulePath)
					.replaceAll("[^/]*/\\./", "");
			while (absolutePath.matches("([^/]*/)?[^/]*/\\.\\./")) {
				absolutePath = absolutePath
						.replaceAll("([^/]*/)?[^/]*/\\.\\./", "");
			}
		}
		absolutePath = absolutePath + ".js";

		SlingScriptHelper sling = getProperty(cx, thisObj, SlingBindings.SLING,
				SlingScriptHelper.class);
		if (sling == null) {
			throw new NullPointerException(SlingBindings.SLING);
		}
		ResourceResolver resrev = sling.getScript().getScriptResource().getResourceResolver();

		Resource script = null;
		String scriptName = null;
		for (String basepath : resrev.getSearchPath()) {
			script = resrev.resolve(basepath + absolutePath);
			if (script!=null&&!(script instanceof NonExistingResource)) {
				scriptName = basepath + absolutePath;
				break;
			}
		}
		if (script==null) {
			throw Context.reportRuntimeError("Unable to resolve module " + absolutePath + " in search path");
		}

		InputStream scriptStream = script.adaptTo(InputStream.class);
		if (scriptStream == null) {
			//try once again
			 scriptStream = resrev.resolve(scriptName).adaptTo(InputStream.class);
			if (scriptStream==null) {
				throw Context.reportRuntimeError("Script file " + script.getPath()
						+ " cannot be read");
			}
		}


		try {
			// reader for the stream
			Reader scriptReader = new InputStreamReader(scriptStream, Charset.forName("UTF-8"));

			// check whether we have to wrap the basic reader
			if (scriptName
					.endsWith(RhinoJavaScriptEngineFactory.ESP_SCRIPT_EXTENSION)) {
				scriptReader = new EspReader(scriptReader);
			}

			// read the suff buffered for better performance
			scriptReader = new BufferedReader(scriptReader);

			//TODO: execute script with ModuleScope
			// now, let's go

			ModuleScope scope = moduleScope;
			if (scope==null) {
				scope = new ModuleScope(thisObj, absolutePath.substring(0, absolutePath.length() - 3));
			} else {
				scope.reset();
			}

			cx.evaluateReader(scope, scriptReader, scriptName, 1,
					null);

			return scope;

		} catch (IOException ioe) {

			throw Context.reportRuntimeError("Failure reading file "
					+ scriptName + ": " + ioe);

		} finally {
			// ensure the script input stream is closed
			try {
				scriptStream.close();
			} catch (IOException ignore) {
			}
		}
	}