I try to show all my packages names with java reflection and it work perfectly when i test with a main method:
The methode to get all packages names whitch is in a class named test1.java:
public Set<String> findAllPackages(String packagebase) {
List<ClassLoader> classLoadersList = new LinkedList<ClassLoader>();
classLoadersList.add(ClasspathHelper.contextClassLoader());
classLoadersList.add(ClasspathHelper.staticClassLoader());
Reflections reflections = new Reflections(
new ConfigurationBuilder()
.setScanners(new SubTypesScanner(false),
new ResourcesScanner())
.setUrls(
ClasspathHelper.forClassLoader(classLoadersList
.toArray(new ClassLoader[0])))
.filterInputsBy(
new FilterBuilder().include(FilterBuilder
.prefix(packagebase))));
Set<Class<? extends Object>> classes = reflections
.getSubTypesOf(Object.class);
Set<String> packageNameSet = new TreeSet<String>();
for (Class classInstance : classes) {
packageNameSet.add(classInstance.getPackage().getName());
}
return packageNameSet;
}
My main method in the same class :
public static void main(String[] args) throws ClassNotFoundException,
IOException {
for (String pack : new test1().findAllPackages("org.basepackage")) {
System.out.println(pack);
}
}
When i try to put my method into my managedbean or just instanciat my test1.java class into my menagedbean too it dosn't work and when i debug i found that it didn't go into the loop for of findAllPackages.
My bean looks like:
@Named
@ViewScoped
public class mymanagedbean implements Serializable {
private List<SelectItem> packageNameItems;
@PostConstruct
public void init() {
try {
packageNameItems=new ArrayList<SelectItem>();
packageNameItems=(new test1().loadpackageName("org.basepackage"));
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
i have the getters & setters of packageNameItems in that managedbean
My jsf looks like :
<h:form>
<h:selectOneMenu value="#{mymanagedbean.packageName}">
<f:selectItems value="#{mymanagedbean.classNameItems}"/>
</h:selectOneMenu>
</h:form>
Do you have any idea?
I solved the issue :
public Set<String> findAllPackages(String packagebase) {
List<ClassLoader> classLoadersList = new LinkedList<ClassLoader>();
classLoadersList.add(ClasspathHelper.contextClassLoader());
classLoadersList.add(ClasspathHelper.staticClassLoader());
Reflections reflections = new Reflections(
new ConfigurationBuilder()
.setScanners(new SubTypesScanner(false),
new ResourcesScanner())
.setUrls(
ClasspathHelper.forClassLoader(classLoadersList)))
.filterInputsBy(
new FilterBuilder().include(FilterBuilder
.prefix(packagebase))));
Set<Class<? extends Object>> classes = reflections
.getSubTypesOf(Object.class);
Set<String> packageNameSet = new TreeSet<String>();
for (Class classInstance : classes) {
packageNameSet.add(classInstance.getPackage().getName());
}
return packageNameSet;}