/** Use the given ClassLoader rather than using the system class */
protected Class resolveClass(ObjectStreamClass classDesc)
throws IOException, ClassNotFoundException {
String cname = classDesc.getName();
if (cname.startsWith("[")) {
// An array
Class component; // component class
int dcount; // dimension
for (dcount = 1; cname.charAt(dcount) == '['; dcount++) ;
if (cname.charAt(dcount) == 'L') {
component = loader.loadClass(cname.substring(dcount + 1, cname.length() - 1));
} else {
if (cname.length() != dcount + 1) {
throw new ClassNotFoundException(cname); // malformed
}
component = primitiveType(cname.charAt(dcount));
}
int dim[] = new int[dcount];
for (int i = 0; i < dcount; i++) {
dim[i] = 1;
}
return Array.newInstance(component, dim).getClass();
} else {
return loader.loadClass(cname);
}
}
boolean tryDir(String d) {
ClassLoader L = getClass().getClassLoader();
File p = new File(d, PACKAGE);
// System.out.println("Try "+p);
if (!p.exists() || !p.isDirectory()) return false;
for (File f : p.listFiles()) {
String s = f.getName();
if (!s.endsWith(".class")) continue;
String name = s.substring(0, s.length() - 6);
try {
Class<?> c = L.loadClass(PACKAGE + "." + name);
if (!Quotation.class.isAssignableFrom(c)) continue;
Q.put(name, (Quotation) c.newInstance());
System.out.println(" " + name);
// ClassNotFoundException InstantiationException IllegalAccessException
} catch (Exception e) {
continue;
}
}
return Q.size() > 0;
}
/** Look on disk for an editor with the class name 'ocName'. */
PluggableEditor loadEditorFromDisk(String ocName) {
// if here, we need to look on disk for a pluggable editor class...
log.finer("looking for ocName: " + ocName);
try {
Class c = myLoader.loadClass(ocName);
Constructor constructor = c.getConstructor(new Class[0]);
// XXX If the pluggable editor has an error in the constructor, under some
// XXX circumstances it can fail so badly that this call never returns, and
// XXX the thread hangs! It doesn't even get to the exception handler below...
// XXX but sometimes if the constructor fails everything works as expected. Wierd.
PluggableEditor editor = (PluggableEditor) constructor.newInstance(new Object[0]);
editors.put(ocName, editor); // add the new editor to our list
return editor;
} catch (Exception e) // expected condition - just means no pluggable editor available
{
if (e
instanceof
InvocationTargetException) // rare exception - an error was encountered in the plugin's
// constructor.
{
log.warning("unable to load special editor for: '" + ocName + "' " + e);
if (JXConfig.debugLevel >= 1) {
log.warning("Error loading plugin class: ");
((InvocationTargetException) e).getTargetException().printStackTrace();
}
}
log.log(Level.FINEST, "'Expected' Error loading " + ocName, e);
editors.put(ocName, NONE); // add a blank place holder - we can't load
// an editor for this, and there's no point looking again. (change if want dynamic loading,
// i.e. look *every* time)
}
return null; // only here if an error has occured.
}
/**
* Instantiate a JavaBean.
*
* @param classLoader the class-loader from which we should create the bean. If this is null, then
* the system class-loader is used.
* @param beanName the name of the bean within the class-loader. For example "sun.beanbox.foobah"
* @exception java.lang.ClassNotFoundException if the class of a serialized object could not be
* found.
* @exception java.io.IOException if an I/O error occurs.
*/
public static Object instantiate(ClassLoader cls, String beanName)
throws java.io.IOException, ClassNotFoundException {
java.io.InputStream ins;
java.io.ObjectInputStream oins = null;
Object result = null;
boolean serialized = false;
java.io.IOException serex = null;
// If the given classloader is null, we check if an
// system classloader is available and (if so)
// use that instead.
// Note that calls on the system class loader will
// look in the bootstrap class loader first.
if (cls == null) {
try {
cls = ClassLoader.getSystemClassLoader();
} catch (SecurityException ex) { // We're not allowed to access the system class loader.
// Drop through.
}
}
// Try to find a serialized object with this name
final String serName = beanName.replace('.', '/').concat(".ser");
final ClassLoader loader = cls;
ins =
(InputStream)
java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction() {
public Object run() {
if (loader == null) return ClassLoader.getSystemResourceAsStream(serName);
else return loader.getResourceAsStream(serName);
}
});
if (ins != null) {
try {
if (cls == null) {
oins = new ObjectInputStream(ins);
} else {
oins = new ObjectInputStreamWithLoader(ins, cls);
}
result = oins.readObject();
serialized = true;
oins.close();
} catch (java.io.IOException ex) {
ins.close();
// Drop through and try opening the class. But remember
// the exception in case we can't find the class either.
serex = ex;
} catch (ClassNotFoundException ex) {
ins.close();
throw ex;
}
}
if (result == null) {
// No serialized object, try just instantiating the class
Class cl;
try {
if (cls == null) {
cl = Class.forName(beanName);
} else {
cl = cls.loadClass(beanName);
}
} catch (ClassNotFoundException ex) {
// There is no appropriate class. If we earlier tried to
// deserialize an object and got an IO exception, throw that,
// otherwise rethrow the ClassNotFoundException.
if (serex != null) {
throw serex;
}
throw ex;
}
/*
* Try to instantiate the class.
*/
try {
result = cl.newInstance();
} catch (Exception ex) {
// We have to remap the exception to one in our signature.
// But we pass extra information in the detail message.
throw new ClassNotFoundException("" + cl + " : " + ex);
}
}
if (result != null) { // Ok, if the result is an applet initialize it.
AppletStub stub = null;
if (result instanceof Applet) {
Applet applet = (Applet) result;
// Figure our the codebase and docbase URLs. We do this
// by locating the URL for a known resource, and then
// massaging the URL.
// First find the "resource name" corresponding to the bean
// itself. So a serialzied bean "a.b.c" would imply a
// resource name of "a/b/c.ser" and a classname of "x.y"
// would imply a resource name of "x/y.class".
final String resourceName;
if (serialized) {
// Serialized bean
resourceName = beanName.replace('.', '/').concat(".ser");
} else {
// Regular class
resourceName = beanName.replace('.', '/').concat(".class");
}
URL objectUrl = null;
URL codeBase = null;
URL docBase = null;
// Now get the URL correponding to the resource name.
final ClassLoader cloader = cls;
objectUrl =
(URL)
java.security.AccessController.doPrivileged(
new java.security.PrivilegedAction() {
public Object run() {
if (cloader == null) return ClassLoader.getSystemResource(resourceName);
else return cloader.getResource(resourceName);
}
});
// If we found a URL, we try to locate the docbase by taking
// of the final path name component, and the code base by taking
// of the complete resourceName.
// So if we had a resourceName of "a/b/c.class" and we got an
// objectURL of "file://bert/classes/a/b/c.class" then we would
// want to set the codebase to "file://bert/classes/" and the
// docbase to "file://bert/classes/a/b/"
if (objectUrl != null) {
String s = objectUrl.toExternalForm();
if (s.endsWith(resourceName)) {
int ix = s.length() - resourceName.length();
codeBase = new URL(s.substring(0, ix));
docBase = codeBase;
ix = s.lastIndexOf('/');
if (ix >= 0) {
docBase = new URL(s.substring(0, ix + 1));
}
}
}
// Setup a default context and stub.
BeansAppletContext context = new BeansAppletContext(applet);
stub = (AppletStub) new BeansAppletStub(applet, context, codeBase, docBase);
applet.setStub(stub);
// If it was deserialized then it was already init-ed.
// Otherwise we need to initialize it.
if (!serialized) {
// We need to set a reasonable initial size, as many
// applets are unhappy if they are started without
// having been explicitly sized.
applet.setSize(100, 100);
applet.init();
}
((BeansAppletStub) stub).active = true;
}
}
return result;
}
public QSAdminGUI(QSAdminMain qsadminMain, JFrame parentFrame) {
this.parentFrame = parentFrame;
Container cp = this;
qsadminMain.setGUI(this);
cp.setLayout(new BorderLayout(5, 5));
headerPanel = new HeaderPanel(qsadminMain, parentFrame);
mainCommandPanel = new MainCommandPanel(qsadminMain);
cmdConsole = new CmdConsole(qsadminMain);
propertiePanel = new PropertiePanel(qsadminMain);
if (headerPanel == null
|| mainCommandPanel == null
|| cmdConsole == null
|| propertiePanel == null) {
throw new RuntimeException("Loading of one of gui component failed.");
}
headerPanel.setBorder(BorderFactory.createEmptyBorder(0, 5, 0, 5));
cp.add(headerPanel, BorderLayout.NORTH);
JScrollPane propertieScrollPane = new JScrollPane(propertiePanel);
// JScrollPane commandScrollPane = new JScrollPane(mainCommandPanel);
JSplitPane splitPane =
new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, true, mainCommandPanel, cmdConsole);
splitPane.setOneTouchExpandable(false);
splitPane.setDividerLocation(250);
// splitPane.setDividerLocation(0.70);
tabbedPane = new JTabbedPane(JTabbedPane.TOP);
tabbedPane.addTab("Main", ball, splitPane, "Main Commands");
tabbedPane.addTab("Get/Set", ball, propertieScrollPane, "Properties Panel");
QSAdminPluginConfig qsAdminPluginConfig = null;
PluginPanel pluginPanel = null;
// -- start of loadPlugins
try {
File xmlFile = null;
ClassLoader classLoader = null;
Class mainClass = null;
File file = new File(pluginDir);
File dirs[] = null;
if (file.canRead()) dirs = file.listFiles(new DirFileList());
for (int i = 0; dirs != null && i < dirs.length; i++) {
xmlFile = new File(dirs[i].getAbsolutePath() + File.separator + "plugin.xml");
if (xmlFile.canRead()) {
qsAdminPluginConfig = PluginConfigReader.read(xmlFile);
if (qsAdminPluginConfig.getActive().equals("yes")
&& qsAdminPluginConfig.getType().equals("javax.swing.JPanel")) {
classLoader = ClassUtil.getClassLoaderFromJars(dirs[i].getAbsolutePath());
mainClass = classLoader.loadClass(qsAdminPluginConfig.getMainClass());
logger.fine("Got PluginMainClass " + mainClass);
pluginPanel = (PluginPanel) mainClass.newInstance();
if (JPanel.class.isInstance(pluginPanel) == true) {
logger.info("Loading plugin : " + qsAdminPluginConfig.getName());
pluginPanelMap.put("" + (2 + i), pluginPanel);
plugins.add(pluginPanel);
tabbedPane.addTab(
qsAdminPluginConfig.getName(),
ball,
(JPanel) pluginPanel,
qsAdminPluginConfig.getDesc());
pluginPanel.setQSAdminMain(qsadminMain);
pluginPanel.init();
}
} else {
logger.info(
"Plugin "
+ dirs[i]
+ " is disabled so skipping "
+ qsAdminPluginConfig.getActive()
+ ":"
+ qsAdminPluginConfig.getType());
}
} else {
logger.info("No plugin configuration found in " + xmlFile + " so skipping");
}
}
} catch (Exception e) {
logger.warning("Error loading plugin : " + e);
logger.fine("StackTrace:\n" + MyString.getStackTrace(e));
}
// -- end of loadPlugins
tabbedPane.addChangeListener(
new ChangeListener() {
int selected = -1;
int oldSelected = -1;
public void stateChanged(ChangeEvent e) {
// if plugin
selected = tabbedPane.getSelectedIndex();
if (selected >= 2) {
((PluginPanel) pluginPanelMap.get("" + selected)).activated();
}
if (oldSelected >= 2) {
((PluginPanel) pluginPanelMap.get("" + oldSelected)).deactivated();
}
oldSelected = selected;
}
});
// tabbedPane.setBorder(BorderFactory.createEmptyBorder(0,5,5,5));
cp.add(tabbedPane, BorderLayout.CENTER);
buildMenu();
}
