How do I obtain a source file for a Java class and open it in the editor?
Sometimes it is necessary to open source code for a Java file from your NetBeans plug-in. The source code may be located in the currently open projects, in a library or in the platform JRE. It is assumed that libraries and platform JRE have associated sources in your environment. The associations are configured from the Tools > Libraries and Tools > Java Platform menu items.
Here is an example of how to find a FileObject
corresponding to the class javax.swing.JComponent
:
String classResource = "javax/swing/JComponent.java";
for (FileObject curRoot : GlobalPathRegistry.getDefault().getSourceRoots()) {
FileObject fileObject = curRoot.getFileObject(classResource);
if (fileObject != null) {
// source file object found
// do something, e.g. openEditor(fileObject, lineNumber);
return;
}
}
In the if
block you can do something with the source file you found.
For example, you can open it in the Java editor.
DevFaqOpenFileAtLine describes how.