Q: How to ensure that code can be obfuscated, but reflection API benefits for action invoking could be used?<\/p>\n
A: In JDK 5.0 solution exists, just use annotations.<\/p>\n
So how to do such.<\/p>\n
1) Define appropriate annotation<\/p>\n
[code lang=”java”]
\n@Retention(RetentionPolicy.RUNTIME)
\n@Target(ElementType.METHOD)
\npublic @interface Call {
\n int value();
\n}
\n[\/code]<\/p>\n
2) Define reflection action to use annotation definition<\/p>\n
[code lang=”java”]
\npublic class KCallAction extends KAction {<\/p>\n
public KCallAction(int pID) {
\n super(pID);
\n }<\/p>\n
@Override
\n public void actionPerformed(ActionContext pCtx)
\n {
\n final int id = getId();
\n final Window window = pCtx.getWindow();<\/p>\n
for (Method method : window.getClass().getDeclaredMethods()) {
\n Call call = method.getAnnotation(Call.class);
\n if (call!=null && call.value()==id) {
\n try {
\n method.invoke(window, pCtx);
\n } catch (Exception e) {
\n LOG.error(”Call failed: ” + id, e);
\n }
\n break;
\n }
\n }
\n }<\/p>\n
}
\n[\/code]<\/p>\n
3) Apply into actual use<\/p>\n
[code lang=”java”]
\npublic class CallFrame extends KApplicationFrame {<\/p>\n
protected void createMenus() {
\n KMenu menu = new KMenu(TestConstants.R_MENU_FILE, new Action[] {
\n new KCallAction(TestConstants.R_OPEN)
\n });
\n setJMenuBar(new JMenuBar());
\n getJMenuBar().add(menu.create());
\n }<\/p>\n
@Call(TestConstants.R_OPEN)
\n public void openFile(ActionContext pCtx) {
\n LOG.info(”OPENInvoke:” + pCtx);
\n }<\/p>\n
public static void main(String[] pArgs) {
\n AppUtil.start(CallFrame.class, pArgs);
\n }<\/p>\n
}
\n[\/code]<\/p>\n
4) Enjoy benefits!<\/p>\n","protected":false},"excerpt":{"rendered":"
Q: How to ensure that code can be obfuscated, but reflection API benefits for action invoking could be used? A: In JDK 5.0 solution exists, just use annotations. So how to do such. 1) Define appropriate annotation [code lang=”java”] @Retention(RetentionPolicy.RUNTIME) @Target(ElementType.METHOD) public @interface Call { int value(); } [\/code] 2) Define reflection action to use…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,20],"tags":[],"class_list":["post-62","post","type-post","status-publish","format-standard","hentry","category-java","category-swing"],"_links":{"self":[{"href":"https:\/\/kari.world.ikari.fi\/index.php?rest_route=\/wp\/v2\/posts\/62","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kari.world.ikari.fi\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kari.world.ikari.fi\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kari.world.ikari.fi\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kari.world.ikari.fi\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=62"}],"version-history":[{"count":0,"href":"https:\/\/kari.world.ikari.fi\/index.php?rest_route=\/wp\/v2\/posts\/62\/revisions"}],"wp:attachment":[{"href":"https:\/\/kari.world.ikari.fi\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=62"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kari.world.ikari.fi\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=62"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kari.world.ikari.fi\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=62"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}