/**
* This is the container for an instance of a site on a single server. This can be access via
* __instance__
*
* @anonymous name : {local}, isField : {true}, desc : {Refers to the site being run.}, type:
* {library}
* @anonymous name : {core}, isField : {true}, desc : {Refers to corejs.} example :
* {core.core.mail() calls corejs/core/mail.js}, type : {library}
* @anonymous name : {external} isField : {true}, desc : {Refers to the external libraries.}, type :
* {library}
* @anonymous name : {db}, isField : {true}, desc : {Refers to the database.}, type : {database}
* @anonymous name : {setDB} desc : {changes <tt>db</tt> to refer to a different database.} param :
* {type : (string) name : (dbname) desc : (name of the database to which to connect)}
* @anonymous name : {SYSOUT} desc : {Prints a string.} param : {type : (string) name : (str) desc :
* (the string to print)}
* @anonymous name : {log} desc : {Global logger.} param : {type : (string) name : (str) desc : (the
* string to log)}
* @expose
* @docmodule system.system.__instance__
*/
public class AppContext extends ServletContextBase implements JSObject, Sizable {
/** @unexpose */
static final boolean DEBUG = AppServer.D;
/**
* If these files exist in the directory or parent directories of a file being run, run these
* files first. Includes _init.js and /~~/core/init.js.
*/
static final String INIT_FILES[] = new String[] {"/~~/core/init.js", "PREFIX_init"};
/**
* Initializes a new context for a given site directory.
*
* @param f the file to run
*/
public AppContext(File f) {
this(f.toString());
}
/**
* Initializes a new context for a given site's path.
*
* @param root the path to the site from where ed is being run
*/
public AppContext(String root) {
this(root, guessNameAndEnv(root).name, guessNameAndEnv(root).env);
}
/**
* Initializes a new context.
*
* @param root the path to the site
* @param name the name of the site
* @param environment the version of the site
*/
public AppContext(String root, String name, String environment) {
this(root, new File(root), name, environment);
}
/**
* Initializes a new context.
*
* @param root the path to the site
* @param rootFile the directory in which the site resides
* @param name the name of the site
* @param environment the version of the site
*/
public AppContext(String root, File rootFile, String name, String environment) {
this(root, rootFile, name, environment, null);
}
private AppContext(
String root, File rootFile, String name, String environment, AppContext nonAdminParent) {
super(name + ":" + environment);
if (root == null) throw new NullPointerException("AppContext root can't be null");
if (rootFile == null) throw new NullPointerException("AppContext rootFile can't be null");
if (name == null) name = guessNameAndEnv(root).name;
if (name == null) throw new NullPointerException("how could name be null");
_root = root;
_rootFile = rootFile;
_git = new GitDir(_rootFile);
_name = name;
_environment = environment;
_nonAdminParent = nonAdminParent;
_admin = _nonAdminParent != null;
_codePrefix = _admin ? "/~~/modules/admin/" : "";
_moduleRegistry = ModuleRegistry.getNewGlobalChild();
if (_git.isValid()) {
_gitBranch = _git.getBranchOrTagName();
_gitHash = _git.getCurrentHash();
}
_isGrid = name.equals("grid");
_scope =
new Scope(
"AppContext:" + root + (_admin ? ":admin" : ""),
_isGrid ? ed.cloud.Cloud.getInstance().getScope() : Scope.newGlobal(),
null,
Language.JS(),
_rootFile);
_scope.setGlobal(true);
_initScope = _scope.child("_init");
_usage = new UsageTracker(this);
_baseScopeInit();
_adminContext = _admin ? null : new AppContext(root, rootFile, name, environment, this);
_rootContextReachable = new SeenPath();
if (!_admin)
_logger.info(
"Started Context. root:"
+ _root
+ " environment:"
+ environment
+ " git branch: "
+ _gitBranch);
}
/**
* Returns the adapter type for the given file. Will first use the adapter selector function if it
* was specified in init.js, otherwise will use the static type (either set in _init file, as a
* server-wide override in 10gen.properties, or default of DIRECT_10GEN)
*
* @param file to produce type for
* @return adapter type for the specified file
*/
public AdapterType getAdapterType(File file) {
// Q : I think this is the right thing to do
if (inScopeSetup()) {
return AdapterType.DIRECT_10GEN;
}
/*
* cheap hack - prevent any _init.* file from getting run as anythign but DIRECT_10GEN
*/
if (file != null && file.getName().indexOf("_init.") != -1) {
return AdapterType.DIRECT_10GEN;
}
if (_adapterSelector == null) {
return _staticAdapterType;
}
/*
* only let the app select type if file is part of application (i.e.
* don't do it for corejs, core modules, etc...
*/
String fp = file.getAbsolutePath();
String fullRoot = _rootFile.getAbsolutePath(); // there must be a nicer way to do this?
if (!fp.startsWith(fullRoot)) {
return AdapterType.DIRECT_10GEN;
}
Object o = _adapterSelector.call(_initScope, new JSString(fp.substring(fullRoot.length())));
if (o == null) {
return _staticAdapterType;
}
if (!(o instanceof JSString)) {
log("Error : adapter selector not returning string. Ignoring and using static adapter type");
return _staticAdapterType;
}
AdapterType t = getAdapterTypeFromString(o.toString());
return (t == null ? _staticAdapterType : t);
}
/**
* Creates a copy of this context.
*
* @return an identical context
*/
AppContext newCopy() {
return new AppContext(_root, _rootFile, _name, _environment, _nonAdminParent);
}
/** Initializes the base scope for the application */
private void _baseScopeInit() {
// --- libraries
if (_admin) _scope.put("local", new JSObjectBase(), true);
else _setLocalObject(new JSFileLibrary(_rootFile, "local", this));
_loadConfig();
_core = CoreJS.get().getLibrary(getCoreJSVersion(), this, null, true);
_logger.info("corejs : " + _core.getRoot());
_scope.put("core", _core, true);
_external =
Module.getModule("external").getLibrary(getVersionForLibrary("external"), this, null, true);
_scope.put("external", _external, true);
_scope.put("__instance__", this, true);
_scope.lock("__instance__");
// --- db
if (!_isGrid) {
_scope.put("db", DBProvider.get(this), true);
_scope.put(
"setDB",
new JSFunctionCalls1() {
public Object call(Scope s, Object name, Object extra[]) {
if (name.equals(_lastSetTo)) return true;
DBBase db = (DBBase) AppContext.this._scope.get("db");
if (!db.allowedToAccess(name.toString()))
throw new JSException("you are not allowed to access db [" + name + "]");
if (name.equals(db.getName())) return true;
AppContext.this._scope.put(
"db", DBProvider.get(AppContext.this, name.toString()), false);
_lastSetTo = name.toString();
if (_adminContext != null) {
// yes, i do want a new copy so Constructors don't get copied for both
_adminContext._scope.put(
"db", DBProvider.get(AppContext.this, name.toString()), false);
}
return true;
}
String _lastSetTo = null;
},
true);
}
// --- output
_scope.put(
"SYSOUT",
new JSFunctionCalls1() {
public Object call(Scope s, Object str, Object foo[]) {
System.out.println(AppContext.this._name + " \t " + str);
return true;
}
},
true);
_scope.put("log", _logger, true);
// --- random?
_scope.put(
"openFile",
new JSFunctionCalls1() {
public Object call(Scope s, Object name, Object extra[]) {
return new JSLocalFile(_rootFile, name.toString());
}
},
true);
_scope.put("globalHead", _globalHead, true);
Map<String, JSFileLibrary> rootFileMap = new HashMap<String, JSFileLibrary>();
for (String rootKey : new String[] {"local", "core", "external"}) {
Object temp = _scope.get(rootKey);
if (temp instanceof JSFileLibrary) rootFileMap.put(rootKey, (JSFileLibrary) temp);
}
_scope.put(
"fork",
new JSFunctionCalls1() {
public Object call(final Scope scope, final Object funcJS, final Object extra[]) {
if (!(funcJS instanceof JSFunction))
throw new JSException("fork has to take a function");
return queueWork("forked", (JSFunction) funcJS, extra);
}
});
_scope.lock("fork");
ed.appserver.templates.djang10.JSHelper.install(_scope, rootFileMap, _logger);
_scope.lock("user"); // protection against global user object
}
private void _loadConfig() {
try {
_configScope.set("__instance__", this);
_loadConfigFromCloudObject(getSiteObject());
_loadConfigFromCloudObject(getEnvironmentObject());
File f;
if (!_admin) {
f = getFileSafe("_config.js");
if (f == null || !f.exists()) f = getFileSafe("_config");
} else
f =
new File(
Module.getModule("core-modules/admin").getRootFile(getVersionForLibrary("admin")),
"_config.js");
_libraryLogger.info("config file [" + f + "] exists:" + f.exists());
if (f == null || !f.exists()) return;
Convert c = new Convert(f);
JSFunction func = c.get();
func.setUsePassedInScope(true);
func.call(_configScope);
_logger.debug("config things " + _configScope.keySet());
} catch (Exception e) {
throw new RuntimeException("couldn't load config", e);
}
}
private void _loadConfigFromCloudObject(JSObject o) {
if (o == null) return;
_configScope.putAll((JSObject) o.get("config"));
}
/**
* Get the version of corejs to run for this AppContext.
*
* @return the version of corejs as a string. null if should use default
*/
public String getCoreJSVersion() {
Object o = _scope.get("corejsversion");
if (o != null) {
_logger.error("you are using corejsversion which is deprecated. please use version.corejs");
return JS.toString(o);
}
return getVersionForLibrary("corejs");
}
/**
* Get the version of a library to run.
*
* @param name the name of the library to look up
* @return the version of the library to run as a string. null if should use default
*/
public String getVersionForLibrary(String name) {
String version = getVersionForLibrary(_configScope, name, this);
_libraryVersions.set(name, version);
return version;
}
public JSObject getLibraryVersionsLoaded() {
return _libraryVersions;
}
/** @unexpose */
public static String getVersionForLibrary(Scope s, String name) {
AppRequest ar = AppRequest.getThreadLocal();
return getVersionForLibrary(s, name, ar == null ? null : ar.getContext());
}
/** @unexpose */
private static String getVersionForLibrary(Scope s, String name, AppContext ctxt) {
final String version = _getVersionForLibrary(s, name, ctxt);
_libraryLogger.log(
ctxt != null && !ctxt._admin ? Level.DEBUG : Level.INFO,
ctxt + "\t" + name + "\t" + version);
return version;
}
private static String _getVersionForLibrary(Scope s, String name, AppContext ctxt) {
final JSObject o1 =
ctxt == null ? null : (JSObject) (s.get("version_" + ctxt.getEnvironmentName()));
final JSObject o2 = (JSObject) s.get("version");
_libraryLogger.debug(ctxt + "\t versionConfig:" + (o1 != null) + " config:" + (o2 != null));
String version = _getString(name, o1, o2);
if (version != null) return version;
if (ctxt == null || ctxt._nonAdminParent == null) return null;
return ctxt._nonAdminParent.getVersionForLibrary(name);
}
private static String _getString(String name, JSObject... places) {
for (JSObject o : places) {
if (o == null) continue;
Object temp = o.get(name);
if (temp == null) continue;
return temp.toString();
}
return null;
}
/** @return [ <name> , <env> ] */
static NameAndEnv guessNameAndEnv(String root) {
root = ed.io.FileUtil.clean(root);
root = root.replaceAll("\\.+/", "");
String pcs[] = root.split("/+");
if (pcs.length == 0) throw new RuntimeException("no root for : " + root);
// handle anything with sites/foo
for (int i = 0; i < pcs.length - 1; i++)
if (pcs[i].equals("sites")) {
return new NameAndEnv(pcs[i + 1], i + 2 < pcs.length ? pcs[i + 2] : null);
}
final int start = pcs.length - 1;
for (int i = start; i > 0; i--) {
String s = pcs[i];
if (i == start
&& (s.equals("master")
|| s.equals("test")
|| s.equals("www")
|| s.equals("staging")
||
// s.equals("stage") ||
s.equals("dev"))) continue;
return new NameAndEnv(s, i + 1 < pcs.length ? pcs[i + 1] : null);
}
return new NameAndEnv(pcs[0], pcs.length > 1 ? pcs[1] : null);
}
static class NameAndEnv {
NameAndEnv(String name, String env) {
this.name = name;
this.env = env;
}
final String name;
final String env;
}
/**
* Returns the name of the site being run.
*
* @return the name of the site
*/
public String getName() {
return _name;
}
/**
* Get the database being used.
*
* @return The database being used
*/
public DBBase getDB() {
return (DBBase) _scope.get("db");
}
/**
* Given the _id of a JSFile, return the file.
*
* @param id _id of the file to find
* @return The file, if found, otherwise null
*/
JSFile getJSFile(String id) {
if (id == null) return null;
DBCollection f = getDB().getCollection("_files");
return (JSFile) (f.find(new ObjectId(id)));
}
/**
* Returns (and if necessary, reinitializes) the scope this context is using.
*
* @return the scope
*/
public Scope getScope() {
return _scope();
}
public Scope getInitScope() {
return _initScope;
}
public Object getInitObject(String what) {
return getFromInitScope(what);
}
public Object getFromInitScope(String what) {
if (!_knownInitScopeThings.contains(what))
System.err.println("*** Unknown thing requested from initScope [" + what + "]");
return _initScope.get(what);
}
public void setInitObject(String name, Object value) {
_initScope.set(name, value);
}
void setTLPreferredScope(AppRequest req, Scope s) {
_scope.setTLPreferred(s);
}
private synchronized Scope _scope() {
if (_inScopeSetup) return _scope;
if (_getScopeTime() > _lastScopeInitTime) _scopeInited = false;
if (_scopeInited) return _scope;
_scopeInited = true;
_lastScopeInitTime = System.currentTimeMillis();
_setupScope();
_setStaticAdapterType();
_setAdapterSelectorFunction();
return _scope;
}
protected void _setAdapterSelectorFunction() {
Object o = this.getFromInitScope(INIT_ADAPTER_SELECTOR);
if (o == null) {
log("Adapter selector function not specified in _init file");
return;
}
if (!(o instanceof JSFunction)) {
log(
"Adapter selector function specified in _init file not a function. Ignoring. ["
+ o.getClass()
+ "]");
return;
}
_adapterSelector = (JSFunction) o;
log("Adapter selector function specified in _init file");
}
public void setStaticAdapterTypeValue(AdapterType type) {
log("Static adapter type directly set : " + type);
_staticAdapterType = type;
}
public AdapterType getStaticAdapterTypeValue() {
return _staticAdapterType;
}
/**
* Figure out what kind of static adapter type was specified. By default it's a 10genDEFAULT app
*/
protected void _setStaticAdapterType() {
/*
* app configuration steps could have set this already. If so, don't bother doing anything
*/
if (_staticAdapterType != AdapterType.UNSET) {
log("Static adapter type has already been directly set to " + _staticAdapterType);
return;
}
/*
* check to see if overridden in 10gen.properties
*/
String override = Config.get().getProperty(INIT_ADAPTER_TYPE);
if (override != null) {
AdapterType t = getAdapterTypeFromString(override);
if (t == null) {
log(
"Static adapter type specified as override ["
+ override
+ "] unknown - will use _init file specified or default");
} else {
log("Static adapter type overridden by 10gen.properties or env. Value : " + override);
_staticAdapterType = t;
return;
}
}
/*
* if not, use the one from _init file if specified
*/
_staticAdapterType = AdapterType.DIRECT_10GEN;
Object o = getFromInitScope(INIT_ADAPTER_TYPE);
if (o == null) {
log("Static adapter type not specified in _init file - using default value of DIRECT_10GEN");
return;
}
if (!(o instanceof JSString)) {
log("Static adapter type from _init file not a string - using default value of DIRECT_10GEN");
return;
}
_staticAdapterType = getAdapterTypeFromString(o.toString());
if (_staticAdapterType == null) {
log(
"Static adapter type from _init file ["
+ o.toString()
+ "] unknown - using default value of DIRECT_10GEN");
_staticAdapterType = AdapterType.DIRECT_10GEN;
return;
}
log("Static adapter type specified in _init file = " + _staticAdapterType);
return;
}
public AdapterType getAdapterTypeFromString(String s) {
if (AdapterType.DIRECT_10GEN.toString().equals(s.toUpperCase())) {
return AdapterType.DIRECT_10GEN;
}
if (AdapterType.CGI.toString().equals(s.toUpperCase())) {
return AdapterType.CGI;
}
if (AdapterType.WSGI.toString().equals(s.toUpperCase())) {
return AdapterType.WSGI;
}
return null;
}
/** @unexpose */
public File getFileSafe(final String uri) {
try {
return getFile(uri);
} catch (FileNotFoundException fnf) {
return null;
}
}
/** @unexpose */
public File getFile(final String uri) throws FileNotFoundException {
File f = _files.get(uri);
if (f != null) return f;
if (uri.startsWith("/~~/") || uri.startsWith("~~/"))
f = _core.getFileFromPath(uri.substring(3));
else if (uri.startsWith("/admin/")) f = _core.getFileFromPath("/modules" + uri);
else if (uri.startsWith("/@@/") || uri.startsWith("@@/"))
f = _external.getFileFromPath(uri.substring(3));
else if (_localObject != null && uri.startsWith("/modules/"))
f = _localObject.getFileFromPath(uri);
else f = new File(_rootFile, uri);
if (f == null) throw new FileNotFoundException(uri);
_files.put(uri, f);
return f;
}
public String getRealPath(String path) {
try {
return getFile(path).getAbsolutePath();
} catch (FileNotFoundException fnf) {
throw new RuntimeException("file not found [" + path + "]");
}
}
public URL getResource(String path) {
try {
File f = getFile(path);
if (!f.exists()) return null;
return f.toURL();
} catch (FileNotFoundException fnf) {
// the spec says to return null if we can't find it
// even though this is weird...
return null;
} catch (IOException ioe) {
throw new RuntimeException("error opening [" + path + "]", ioe);
}
}
public InputStream getResourceAsStream(String path) {
URL url = getResource(path);
if (url == null) return null;
try {
return url.openStream();
} catch (IOException ioe) {
throw new RuntimeException("can't getResourceAsStream [" + path + "]", ioe);
}
}
/**
* This causes the AppContext to be started over. All context level variable will be lost. If code
* is being managed, will cause it to check that its up to date.
*/
public void reset() {
_reset = true;
}
/** Checks if this context has been reset. */
public boolean isReset() {
return _reset;
}
/**
* Returns the path to the directory the appserver is running. (For example, site/version.)
*
* @return the path
*/
public String getRoot() {
return _root;
}
public File getRootFile() {
return _rootFile;
}
/**
* Creates an new request for the app server from an HTTP request.
*
* @param request HTTP request to create
* @return the request
*/
public AppRequest createRequest(HttpRequest request) {
return createRequest(request, request.getHost(), request.getURI());
}
/**
* Creates an new request for the app server from an HTTP request.
*
* @param request HTTP request to create
* @param uri the URI requested
* @return the request
*/
public AppRequest createRequest(HttpRequest request, String host, String uri) {
_numRequests++;
if (AppRequest.isAdmin(request)) return new AppRequest(_adminContext, request, host, uri);
return new AppRequest(this, request, host, uri);
}
/**
* Tries to find the given file, assuming that it's missing the ".jxp" extension
*
* @param f File to check
* @return same file if not found to be missing the .jxp, or a new File w/ the .jxp appended
*/
File tryNoJXP(File f) {
if (f.exists()) return f;
if (f.getName().indexOf(".") >= 0) return f;
File temp = new File(f.toString() + ".jxp");
return temp.exists() ? temp : f;
}
File tryOtherExtensions(File f) {
if (f.exists()) return f;
if (f.getName().indexOf(".") >= 0) return f;
for (int i = 0; i < JSFileLibrary._srcExtensions.length; i++) {
File temp = new File(f.toString() + JSFileLibrary._srcExtensions[i]);
if (temp.exists()) return temp;
}
return f;
}
/**
* Maps a servlet-like URI to a jxp file.
*
* @param f File to check
* @return new File with <root>.jxp if exists, orig file if not
* @example /wiki/geir -> maps to wiki.jxp if exists
*/
File tryServlet(File f) {
if (f.exists()) return f;
String uri = f.toString();
if (uri.startsWith(_rootFile.toString())) uri = uri.substring(_rootFile.toString().length());
if (_core != null && uri.startsWith(_core._base.toString()))
uri = "/~~" + uri.substring(_core._base.toString().length());
while (uri.startsWith("/")) uri = uri.substring(1);
int start = 0;
while (true) {
int idx = uri.indexOf("/", start);
if (idx < 0) break;
String foo = uri.substring(0, idx);
File temp = getFileSafe(foo + ".jxp");
if (temp != null && temp.exists()) f = temp;
start = idx + 1;
}
return f;
}
/**
* Returns the index.jxp for the File argument if it's an existing directory, and the index.jxp
* file exists
*
* @param f directory to check
* @return new File for index.jxp in that directory, or same file object if not
*/
File tryIndex(File f) {
if (!(f.isDirectory() && f.exists())) return f;
for (int i = 0; i < JSFileLibrary._srcExtensions.length; i++) {
File temp = new File(f, "index" + JSFileLibrary._srcExtensions[i]);
if (temp.exists()) return temp;
}
return f;
}
JxpSource getSource(File f) throws IOException {
if (DEBUG) System.err.println("getSource\n\t " + f);
File temp = _findFile(f);
if (DEBUG) System.err.println("\t " + temp);
if (!temp.exists()) return handleFileNotFound(f);
// if it's a directory (and we know we can't find the index file)
// TODO : at some point, do something where we return an index for the dir?
if (temp.isDirectory()) return null;
// if we are at init time, save it as an initializaiton file
loadedFile(temp);
// Ensure that this is w/in the right tree for the context
if (_localObject != null && _localObject.isIn(temp)) return _localObject.getSource(temp);
// if not, is it core?
if (_core.isIn(temp)) return _core.getSource(temp);
throw new RuntimeException("what? can't find:" + f);
}
/**
* Finds the appropriate file for the given path.
*
* <p>We have a hierarchy of attempts as we try to find a file :
*
* <p>1) first, see if it exists as is, or if it's really a .jxp w/o the extension 2) next, see if
* it can be deconstructed as a servlet such that /foo/bar maps to /foo.jxp 3) See if we can find
* the index file for it if a directory
*/
File _findFile(File f) {
File temp;
if ((temp = tryNoJXP(f)) != f) {
return temp;
}
if ((temp = tryOtherExtensions(f)) != f) {
return temp;
}
if ((temp = tryServlet(f)) != f) {
return temp;
}
if ((temp = tryIndex(f)) != f) {
return temp;
}
return f;
}
public void loadedFile(File f) {
if (_inScopeSetup) _initFlies.add(f);
}
public void addInitDependency(File f) {
_initFlies.add(f);
}
JxpServlet getServlet(File f) throws IOException {
// if this site doesn't exist, don't return anything
if (!_rootFile.exists()) return null;
JxpSource source = getSource(f);
if (source == null) return null;
return source.getServlet(this);
}
private void _setupScope() {
if (_inScopeSetup) return;
final Scope saveTLPref = _scope.getTLPreferred();
_scope.setTLPreferred(null);
final Scope saveTL = Scope.getThreadLocal();
_scope.makeThreadLocal();
_inScopeSetup = true;
try {
Object fo = getConfigObject("framework");
if (fo != null) {
Framework f = null;
if (fo instanceof JSString) {
f = Framework.byName(fo.toString(), null); // we allow people to just specify name
_logger.info("Setting framework by name [" + fo.toString() + "]");
} else if (fo instanceof JSObjectBase) {
JSObjectBase obj = (JSObjectBase) fo;
if (obj.containsKey("name")) {
String s = obj.getAsString("version");
f = Framework.byName(obj.getAsString("name"), s);
_logger.info("Setting framework by name [" + obj.getAsString("name") + "]");
} else if (obj.containsKey("custom")) {
Object o = obj.get("custom");
if (o instanceof JSObjectBase) {
f = Framework.byCustom((JSObjectBase) o);
_logger.info("Setting framework by custom [" + o + "]");
} else {
throw new RuntimeException("Error - custom framework wasn't an object [" + o + "]");
}
} else if (obj.containsKey("classname")) {
f = Framework.byClass(obj.getAsString("classname"));
_logger.info("Setting framework by class [" + obj.getAsString("classname") + "]");
}
}
if (f == null) {
throw new RuntimeException("Error : can't find framework [" + fo + "]");
}
f.install(this);
}
_runInitFiles(INIT_FILES);
if (_adminContext != null) {
_adminContext._scope.set("siteScope", _scope);
_adminContext._setLocalObject(_localObject);
}
_lastScopeInitTime = _getScopeTime();
} catch (RuntimeException re) {
_scopeInited = false;
throw re;
} catch (Exception e) {
_scopeInited = false;
throw new RuntimeException(e);
} finally {
_inScopeSetup = false;
_scope.setTLPreferred(saveTLPref);
if (saveTL != null) saveTL.makeThreadLocal();
this.approxSize(_rootContextReachable);
}
}
public boolean inScopeSetup() {
return _inScopeSetup;
}
private void _runInitFiles(String[] files) throws IOException {
if (files == null) return;
for (JSFunction func : _initRefreshHooks) {
func.call(_initScope, null);
}
for (int i = 0; i < files.length; i++) runInitFile(files[i].replaceAll("PREFIX", _codePrefix));
}
public void addInitRefreshHook(JSFunction func) {
_initRefreshHooks.add(func);
}
/** @param path (ex: /~~/foo.js ) */
public void runInitFile(String path) throws IOException {
_runInitFile(tryOtherExtensions(getFile(path)));
}
private void _runInitFile(File f) throws IOException {
if (f == null) return;
if (!f.exists()) return;
_initFlies.add(f);
JxpSource s = getSource(f);
JSFunction func = s.getFunction();
func.setUsePassedInScope(true);
func.call(_initScope);
}
long _getScopeTime() {
long last = 0;
for (File f : _initFlies) if (f.exists()) last = Math.max(last, f.lastModified());
return last;
}
/**
* Convert this AppContext to a string by returning the name of the directory it's running in.
*
* @return the filename of its root directory
*/
public String toString() {
return _rootFile.toString();
}
public String debugInfo() {
return _rootFile + " admin:" + _admin;
}
public void fix(Throwable t) {
StackTraceHolder.getInstance().fix(t);
}
/**
* Get a "global" head array. This array contains HTML that will be inserted into the head of
* every request served by this app context. It's analagous to the <tt>head</tt> array, but
* persistent.
*
* @return a mutable array
*/
public JSArray getGlobalHead() {
return _globalHead;
}
/**
* Gets the date of creation for this app context.
*
* @return the creation date as a JS Date.
*/
public JSDate getWhenCreated() {
return _created;
}
/**
* Gets the number of requests served by this app context.
*
* @return the number of requests served
*/
public int getNumRequests() {
return _numRequests;
}
/**
* Get the name of the git branch we think we're running.
*
* @return the name of the git branch, as a string
*/
public String getGitBranch() {
return _gitBranch;
}
public String getGitHash() {
return _gitHash;
}
/**
* Update the git branch that we're running and return it.
*
* @return the name of the git branch, or null if there isn't any
*/
public String getCurrentGitBranch() {
return getCurrentGitBranch(false);
}
public String getCurrentGitBranch(boolean forceUpdate) {
if (_gitBranch == null) return null;
if (_gitFile == null) _gitFile = new File(_rootFile, ".git/HEAD");
if (!_gitFile.exists()) throw new RuntimeException("this should be impossible");
if (forceUpdate || _lastScopeInitTime < _gitFile.lastModified()) {
_gitBranch = _git.getBranchOrTagName();
_gitHash = _git.getCurrentHash();
}
return _gitBranch;
}
/**
* Get the environment in which this site is running
*
* @return the environment name as a string
*/
public String getEnvironmentName() {
return _environment;
}
/**
* updates the context to the correct branch based on environment and to the latest version of the
* code if name or environemnt is missing, does nothing
*/
public String updateCode() {
if (!_git.isValid()) throw new RuntimeException(_rootFile + " is not a git repository");
_logger.info("going to update code");
_git.fullUpdate();
if (_name == null || _environment == null) return getCurrentGitBranch();
JSObject env = getEnvironmentObject();
if (env == null) return null;
String branch = env.get("branch").toString();
_logger.info("updating to [" + branch + "]");
_git.checkout(branch);
Python.deleteCachedJythonFiles(_rootFile);
return getCurrentGitBranch(true);
}
private JSObject getSiteObject() {
return AppContextHolder.getSiteFromCloud(_name);
}
private JSObject getEnvironmentObject() {
return AppContextHolder.getEnvironmentFromCloud(_name, _environment);
}
private void _setLocalObject(JSFileLibrary local) {
_localObject = local;
_scope.put("local", _localObject, true);
_scope.put("jxp", _localObject, true);
_scope.warn("jxp");
}
JxpSource handleFileNotFound(File f) {
String name = f.getName();
if (name.endsWith(".class")) {
name = name.substring(0, name.length() - 6);
return getJxpServlet(name);
}
return null;
}
public JxpSource getJxpServlet(String name) {
JxpSource source = _httpServlets.get(name);
if (source != null) return source;
try {
Class c = Class.forName(name);
Object n = c.newInstance();
if (!(n instanceof HttpServlet))
throw new RuntimeException("class [" + name + "] is not a HttpServlet");
HttpServlet servlet = (HttpServlet) n;
servlet.init(createServletConfig(name));
source = new ServletSource(servlet);
_httpServlets.put(name, source);
return source;
} catch (Exception e) {
throw new RuntimeException("can't load [" + name + "]", e);
}
}
ServletConfig createServletConfig(final String name) {
final Object rawServletConfigs = _scope.get("servletConfigs");
final Object servletConfigObject =
rawServletConfigs instanceof JSObject ? ((JSObject) rawServletConfigs).get(name) : null;
final JSObject servletConfig;
if (servletConfigObject instanceof JSObject) servletConfig = (JSObject) servletConfigObject;
else servletConfig = null;
return new ServletConfig() {
public String getInitParameter(String name) {
if (servletConfig == null) return null;
Object foo = servletConfig.get(name);
if (foo == null) return null;
return foo.toString();
}
public Enumeration getInitParameterNames() {
Collection keys;
if (servletConfig == null) keys = new LinkedList();
else keys = servletConfig.keySet();
return new CollectionEnumeration(keys);
}
public ServletContext getServletContext() {
return AppContext.this;
}
public String getServletName() {
return name;
}
};
}
public static AppContext findThreadLocal() {
AppContext context = _tl.get();
if (context != null) return context;
AppRequest req = AppRequest.getThreadLocal();
if (req != null) return req._context;
Scope s = Scope.getThreadLocal();
if (s != null) {
Object foo = s.get("__instance__");
if (foo instanceof AppContext) return (AppContext) foo;
}
return null;
}
public void makeThreadLocal() {
_tl.set(this);
}
public static void clearThreadLocal() {
_tl.set(null);
}
public String getInitParameter(String name) {
Object foo = _configScope.get(name);
if (foo == null) return null;
return foo.toString();
}
public Enumeration getInitParameterNames() {
return new CollectionEnumeration(_configScope.keySet());
}
public Object getConfigObject(String name) {
return _configScope.get(name);
}
public void setConfigObject(String name, Object value) {
_configScope.set(name, value);
}
public String getContextPath() {
return "";
}
public RequestDispatcher getNamedDispatcher(String name) {
throw new RuntimeException("getNamedDispatcher not implemented");
}
public RequestDispatcher getRequestDispatcher(String name) {
throw new RuntimeException("getRequestDispatcher not implemented");
}
public Set getResourcePaths(String path) {
throw new RuntimeException("getResourcePaths not implemented");
}
public AppContext getSiteInstance() {
if (_nonAdminParent == null) return this;
return _nonAdminParent;
}
public long approxSize() {
return approxSize(new SeenPath());
}
public long approxSize(SeenPath seen) {
long size = 0;
seen.visited(this);
if (seen.shouldVisit(_scope, this)) size += _scope.approxSize(seen, false, true);
if (seen.shouldVisit(_initScope, this)) size += _initScope.approxSize(seen, true, false);
size += JSObjectSize.size(_localObject, seen, this);
size += JSObjectSize.size(_core, seen, this);
size += JSObjectSize.size(_external, seen, this);
if (seen.shouldVisit(_adminContext, this)) size += _adminContext.approxSize(seen);
size += JSObjectSize.size(_logger, seen, this);
return size;
}
public int hashCode() {
return System.identityHashCode(this);
}
public boolean equals(Object o) {
return o == this;
}
public AppWork queueWork(String identifier, JSFunction work, Object... params) {
return queueWork(new AppWork.FunctionAppWork(this, identifier, work, params));
}
public AppWork queueWork(AppWork work) {
if (_workQueue == null) {
_workQueue = new ArrayBlockingQueue<AppWork>(100);
AppWork.addQueue(_workQueue);
}
if (_workQueue.offer(work)) return work;
throw new RuntimeException("work queue full!");
}
public Logger getLogger(String sub) {
return _logger.getChild(sub);
}
public ModuleRegistry getModuleRegistry() {
return _moduleRegistry;
}
// ---- START JSObject INTERFACE
public Object get(Object n) {
return _scope.get(n);
}
public JSFunction getFunction(String name) {
return _scope.getFunction(name);
}
public final Set<String> keySet() {
return _scope.keySet();
}
public Set<String> keySet(boolean includePrototype) {
return _scope.keySet(includePrototype);
}
public boolean containsKey(String s) {
return _scope.containsKey(s);
}
public boolean containsKey(String s, boolean includePrototype) {
return _scope.containsKey(s, includePrototype);
}
public Object set(Object n, Object v) {
return _scope.putExplicit(n.toString(), v);
}
public Object setInt(int n, Object v) {
throw new RuntimeException("not allowed");
}
public Object getInt(int n) {
return _scope.getInt(n);
}
public Object removeField(Object n) {
return _scope.removeField(n);
}
public JSFunction getConstructor() {
return null;
}
public JSObject getSuper() {
return null;
}
// ---- END BROKEN JSOBJET INTERFACE
public TimeZone getTimeZone() {
return _tz;
}
public void setTimeZone(String tz) {
if (tz.length() == 3) tz = tz.toUpperCase();
_tz = TimeZone.getTimeZone(tz);
if (!_tz.getID().equals(tz)) throw new RuntimeException("can't find time zone[" + tz + "]");
}
final String _name;
final String _root;
final File _rootFile;
final GitDir _git;
private String _gitBranch;
private String _gitHash;
final String _environment;
final boolean _admin;
final AppContext _adminContext;
final String _codePrefix;
final AppContext _nonAdminParent;
private JSFileLibrary _localObject;
private JSFileLibrary _core;
private JSFileLibrary _external;
final Scope _scope;
final SeenPath _rootContextReachable;
final Scope _initScope;
final Scope _configScope = new Scope();
final UsageTracker _usage;
final ModuleRegistry _moduleRegistry;
final JSArray _globalHead = new JSArray();
private final Map<String, File> _files = Collections.synchronizedMap(new HashMap<String, File>());
private final Set<File> _initFlies = new HashSet<File>();
private final Map<String, JxpSource> _httpServlets =
Collections.synchronizedMap(new HashMap<String, JxpSource>());
private final JSObject _libraryVersions = new JSObjectBase();
private Queue<AppWork> _workQueue;
private TimeZone _tz = TimeZone.getDefault();
boolean _scopeInited = false;
boolean _inScopeSetup = false;
long _lastScopeInitTime = 0;
final boolean _isGrid;
boolean _reset = false;
int _numRequests = 0;
final JSDate _created = new JSDate();
private File _gitFile = null;
private long _lastGitCheckTime = 0;
private Collection<JSFunction> _initRefreshHooks = new ArrayList<JSFunction>();
/*
* adapter type - can have either a static ("all files in this app are X")
* or dynamic - the provided selector function dynamically chooses, falling
* back to the static if it returns null
*/
public static final String INIT_ADAPTER_TYPE = "adapterType";
public static final String INIT_ADAPTER_SELECTOR = "adapterSelector";
private AdapterType _staticAdapterType = AdapterType.UNSET;
private JSFunction _adapterSelector = null;
private static Logger _libraryLogger = Logger.getLogger("library.load");
static {
_libraryLogger.setLevel(Level.INFO);
}
private static final Set<String> _knownInitScopeThings = new HashSet<String>();
private static final ThreadLocal<AppContext> _tl = new ThreadLocal<AppContext>();
static {
_knownInitScopeThings.add("mapUrlToJxpFileCore");
_knownInitScopeThings.add("mapUrlToJxpFile");
_knownInitScopeThings.add("allowed");
_knownInitScopeThings.add("staticCacheTime");
_knownInitScopeThings.add("handle404");
_knownInitScopeThings.add(INIT_ADAPTER_TYPE);
_knownInitScopeThings.add(INIT_ADAPTER_SELECTOR);
}
public static final class AppContextReachable extends ReflectionVisitor.Reachable {
public boolean follow(Object o, Class c, java.lang.reflect.Field f) {
if (_reachableStoppers.contains(c)) return false;
if (f != null && _reachableStoppers.contains(f.getType())) return false;
return super.follow(o, c, f);
}
}
private static final Set<Class> _reachableStoppers = new HashSet<Class>();
static {
_reachableStoppers.add(HttpServer.class);
_reachableStoppers.add(AppServer.class);
_reachableStoppers.add(DBTCP.class);
_reachableStoppers.add(Mongo.class);
_reachableStoppers.add(WeakBag.class);
_reachableStoppers.add(WeakValueMap.class);
}
}
static {
_libraryLogger.setLevel(Level.INFO);
}