Tratando erros ao chamar aplicação java

perry.werneck@gmail.com
1 parent 687a562d
Showing 3 changed files with 95 additions and 9 deletions Show diff stats
src/java/plugin.cc
src/java/sample/except.java
src/java/sample/out.java
@@ -44,6 +44,7 @@
  #include "private.h"
+ #include <malloc.h>
  #include <libintl.h>
  #include <glib/gi18n.h>
  #include <gtk/gtk.h>
@@ -56,6 +57,7 @@
  #include <lib3270/trace.h>
  #include <lib3270/charset.h>
  #include <pw3270/class.h>
+ #include <pw3270/trace.h>
 /*--[ Globals ]--------------------------------------------------------------------------------------*/
@@ -323,15 +325,46 @@
 extern "C" {
-	static session * factory(const char *name)
-	{
+	static session * factory(const char *name) {
 		debug("---> %s",__FUNCTION__);
 		return new plugin(lib3270_get_default_session_handle());
 	}
-	static jint JNICALL jni_vfprintf(FILE *fp, const char *format, va_list args)
-	{
-		lib3270_write_va_log(lib3270_get_default_session_handle(),"java",format,args);
+	static void trace_cleanup(GtkWidget *widget, GtkWidget **window) {
+		*window = NULL;
+	}
+
+	static jint JNICALL jni_vfprintf(FILE *fp, const char *fmt, va_list args) {
+
+		char 				* msg	= NULL;
+		static GtkWidget	* trace = NULL;
+
+		if(vasprintf(&msg,fmt,args) < 1) {
+			lib3270_write_log(lib3270_get_default_session_handle(),"java","vasprintf() error on \"%s\"",fmt);
+			return 0;
+		}
+
+		fprintf(fp,"%s",msg);
+		lib3270_write_log(lib3270_get_default_session_handle(),"java","%s",msg);
+
+		if(!trace) {
+			// Cria janela de trace.
+			trace = pw3270_trace_new();
+			g_signal_connect(G_OBJECT(trace), "destroy",G_CALLBACK(trace_cleanup), &trace);
+
+			pw3270_trace_set_destroy_on_close(trace,TRUE);
+
+			// gtk_window_set_transient_for(GTK_WINDOW(trace),GTK_WINDOW(gtk_widget_get_toplevel(widget)));
+			gtk_window_set_destroy_with_parent(GTK_WINDOW(trace),TRUE);
+
+			gtk_window_set_default_size(GTK_WINDOW(trace),590,430);
+			gtk_widget_show_all(trace);
+
+			pw3270_trace_printf(trace,"%s",msg);
+
+			free(msg);
+		}
+
 		return 0;
 	}
@@ -655,7 +688,7 @@ extern &quot;C&quot;
 														GTK_BUTTONS_CANCEL,
 														_(  "Can't find class %s" ), classname );
-			gtk_window_set_title(GTK_WINDOW(dialog), _( "Java script failure" ));
+			gtk_window_set_title(GTK_WINDOW(dialog), _( "Java error" ));
 			if(gtk_dialog_run(GTK_DIALOG (dialog)) == GTK_RESPONSE_CANCEL)
 				gtk_main_quit();
 			gtk_widget_destroy(dialog);
@@ -672,7 +705,8 @@ extern &quot;C&quot;
 															GTK_BUTTONS_OK_CANCEL,
 															_(  "Can't find class \"%s\"" ), classname );
-				gtk_window_set_title(GTK_WINDOW(dialog), _( "Java script failure" ));
+				gtk_window_set_title(GTK_WINDOW(dialog), _( "Java error" ));
+
 				if(gtk_dialog_run(GTK_DIALOG (dialog)) == GTK_RESPONSE_CANCEL)
 					gtk_main_quit();
 				gtk_widget_destroy(dialog);
@@ -687,6 +721,40 @@ extern &quot;C&quot;
 					env->CallStaticVoidMethod(cls, mid, args);
 					debug("%s: CallStaticVoidMethod() has returned",__FUNCTION__);
+					jthrowable exc = env->ExceptionOccurred();
+					env->ExceptionClear();
+
+					if (exc) {
+						jclass throwable_class = env->FindClass("java/lang/Throwable");
+
+						jmethodID jni_getMessage = env->GetMethodID(throwable_class,"getMessage","()Ljava/lang/String;");
+						jstring j_msg = (jstring) env->CallObjectMethod(exc,jni_getMessage);
+
+						GtkWidget *dialog = gtk_message_dialog_new(	GTK_WINDOW(gtk_widget_get_toplevel(widget)),
+																	GTK_DIALOG_DESTROY_WITH_PARENT,
+																	GTK_MESSAGE_ERROR,
+																	GTK_BUTTONS_OK_CANCEL,
+																	_(  "Java application \"%s\" has failed." ), classname );
+
+						gtk_window_set_title(GTK_WINDOW(dialog), _( "Java failure" ));
+
+						if(!env->IsSameObject(j_msg,NULL)) {
+
+							const char	* msg = env->GetStringUTFChars(j_msg, 0);
+
+							debug("jni_getMessage = %s",msg);
+							gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog),"%s",msg);
+
+							env->ReleaseStringUTFChars( j_msg, msg);
+						}
+
+						if(gtk_dialog_run(GTK_DIALOG (dialog)) == GTK_RESPONSE_CANCEL)
+							gtk_main_quit();
+						gtk_widget_destroy(dialog);
+
+
+					}
+
 				} catch(std::exception &e) {
 					debug("Java error: %s",e.what());
@@ -700,8 +768,6 @@ extern &quot;C&quot;
 		g_free(classname);
-		exit(-1);
-
 		jvm->DestroyJavaVM();
 	}
@@ -0,0 +1,11 @@
+public class except
+{
+    public static void main (String[] args) throws Exception
+    {
+	throw new Exception("Testing exceptions");
+    }
+};
+
+
+
+
@@ -0,0 +1,9 @@
+
+public class out
+{
+    public static void main (String[] args)
+    {
+        System.out.println("Test out");
+        System.err.println("Test err");
+    }
+};
	@@ -44,6 +44,7 @@		@@ -44,6 +44,7 @@
44		44
45	#include "private.h"	45	#include "private.h"
46		46
		47	+ #include <malloc.h>
47	#include <libintl.h>	48	#include <libintl.h>
48	#include <glib/gi18n.h>	49	#include <glib/gi18n.h>
49	#include <gtk/gtk.h>	50	#include <gtk/gtk.h>
	@@ -56,6 +57,7 @@		@@ -56,6 +57,7 @@
56	#include <lib3270/trace.h>	57	#include <lib3270/trace.h>
57	#include <lib3270/charset.h>	58	#include <lib3270/charset.h>
58	#include <pw3270/class.h>	59	#include <pw3270/class.h>
		60	+ #include <pw3270/trace.h>
59		61
60		62
61	/--[ Globals ]--------------------------------------------------------------------------------------/	63	/--[ Globals ]--------------------------------------------------------------------------------------/
	@@ -323,15 +325,46 @@		@@ -323,15 +325,46 @@
323		325
324	extern "C" {	326	extern "C" {
325		327
326	- static session * factory(const char *name)
327	- {	328	+ static session * factory(const char *name) {
328	debug("---> %s",__FUNCTION__);	329	debug("---> %s",__FUNCTION__);
329	return new plugin(lib3270_get_default_session_handle());	330	return new plugin(lib3270_get_default_session_handle());
330	}	331	}
331		332
332	- static jint JNICALL jni_vfprintf(FILE fp, const char format, va_list args)
333	- {
334	- lib3270_write_va_log(lib3270_get_default_session_handle(),"java",format,args);	333	+ static void trace_cleanup(GtkWidget widget, GtkWidget *window) {
		334	+ *window = NULL;
		335	+ }
		336	+
		337	+ static jint JNICALL jni_vfprintf(FILE fp, const char fmt, va_list args) {
		338	+
		339	+ char * msg = NULL;
		340	+ static GtkWidget * trace = NULL;
		341	+
		342	+ if(vasprintf(&msg,fmt,args) < 1) {
		343	+ lib3270_write_log(lib3270_get_default_session_handle(),"java","vasprintf() error on \"%s\"",fmt);
		344	+ return 0;
		345	+ }
		346	+
		347	+ fprintf(fp,"%s",msg);
		348	+ lib3270_write_log(lib3270_get_default_session_handle(),"java","%s",msg);
		349	+
		350	+ if(!trace) {
		351	+ // Cria janela de trace.
		352	+ trace = pw3270_trace_new();
		353	+ g_signal_connect(G_OBJECT(trace), "destroy",G_CALLBACK(trace_cleanup), &trace);
		354	+
		355	+ pw3270_trace_set_destroy_on_close(trace,TRUE);
		356	+
		357	+ // gtk_window_set_transient_for(GTK_WINDOW(trace),GTK_WINDOW(gtk_widget_get_toplevel(widget)));
		358	+ gtk_window_set_destroy_with_parent(GTK_WINDOW(trace),TRUE);
		359	+
		360	+ gtk_window_set_default_size(GTK_WINDOW(trace),590,430);
		361	+ gtk_widget_show_all(trace);
		362	+
		363	+ pw3270_trace_printf(trace,"%s",msg);
		364	+
		365	+ free(msg);
		366	+ }
		367	+
335	return 0;	368	return 0;
336	}	369	}
337		370
	@@ -655,7 +688,7 @@ extern "C"		@@ -655,7 +688,7 @@ extern "C"
655	GTK_BUTTONS_CANCEL,	688	GTK_BUTTONS_CANCEL,
656	_( "Can't find class %s" ), classname );	689	_( "Can't find class %s" ), classname );
657		690
658	- gtk_window_set_title(GTK_WINDOW(dialog), _( "Java script failure" ));	691	+ gtk_window_set_title(GTK_WINDOW(dialog), _( "Java error" ));
659	if(gtk_dialog_run(GTK_DIALOG (dialog)) == GTK_RESPONSE_CANCEL)	692	if(gtk_dialog_run(GTK_DIALOG (dialog)) == GTK_RESPONSE_CANCEL)
660	gtk_main_quit();	693	gtk_main_quit();
661	gtk_widget_destroy(dialog);	694	gtk_widget_destroy(dialog);
	@@ -672,7 +705,8 @@ extern "C"		@@ -672,7 +705,8 @@ extern "C"
672	GTK_BUTTONS_OK_CANCEL,	705	GTK_BUTTONS_OK_CANCEL,
673	_( "Can't find class \"%s\"" ), classname );	706	_( "Can't find class \"%s\"" ), classname );
674		707
675	- gtk_window_set_title(GTK_WINDOW(dialog), _( "Java script failure" ));	708	+ gtk_window_set_title(GTK_WINDOW(dialog), _( "Java error" ));
		709	+
676	if(gtk_dialog_run(GTK_DIALOG (dialog)) == GTK_RESPONSE_CANCEL)	710	if(gtk_dialog_run(GTK_DIALOG (dialog)) == GTK_RESPONSE_CANCEL)
677	gtk_main_quit();	711	gtk_main_quit();
678	gtk_widget_destroy(dialog);	712	gtk_widget_destroy(dialog);
	@@ -687,6 +721,40 @@ extern "C"		@@ -687,6 +721,40 @@ extern "C"
687	env->CallStaticVoidMethod(cls, mid, args);	721	env->CallStaticVoidMethod(cls, mid, args);
688	debug("%s: CallStaticVoidMethod() has returned",__FUNCTION__);	722	debug("%s: CallStaticVoidMethod() has returned",__FUNCTION__);
689		723
		724	+ jthrowable exc = env->ExceptionOccurred();
		725	+ env->ExceptionClear();
		726	+
		727	+ if (exc) {
		728	+ jclass throwable_class = env->FindClass("java/lang/Throwable");
		729	+
		730	+ jmethodID jni_getMessage = env->GetMethodID(throwable_class,"getMessage","()Ljava/lang/String;");
		731	+ jstring j_msg = (jstring) env->CallObjectMethod(exc,jni_getMessage);
		732	+
		733	+ GtkWidget *dialog = gtk_message_dialog_new( GTK_WINDOW(gtk_widget_get_toplevel(widget)),
		734	+ GTK_DIALOG_DESTROY_WITH_PARENT,
		735	+ GTK_MESSAGE_ERROR,
		736	+ GTK_BUTTONS_OK_CANCEL,
		737	+ _( "Java application \"%s\" has failed." ), classname );
		738	+
		739	+ gtk_window_set_title(GTK_WINDOW(dialog), _( "Java failure" ));
		740	+
		741	+ if(!env->IsSameObject(j_msg,NULL)) {
		742	+
		743	+ const char * msg = env->GetStringUTFChars(j_msg, 0);
		744	+
		745	+ debug("jni_getMessage = %s",msg);
		746	+ gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog),"%s",msg);
		747	+
		748	+ env->ReleaseStringUTFChars( j_msg, msg);
		749	+ }
		750	+
		751	+ if(gtk_dialog_run(GTK_DIALOG (dialog)) == GTK_RESPONSE_CANCEL)
		752	+ gtk_main_quit();
		753	+ gtk_widget_destroy(dialog);
		754	+
		755	+
		756	+ }
		757	+
690	} catch(std::exception &e) {	758	} catch(std::exception &e) {
691		759
692	debug("Java error: %s",e.what());	760	debug("Java error: %s",e.what());
	@@ -700,8 +768,6 @@ extern "C"		@@ -700,8 +768,6 @@ extern "C"
700		768
701	g_free(classname);	769	g_free(classname);
702		770
703	- exit(-1);
704	-
705	jvm->DestroyJavaVM();	771	jvm->DestroyJavaVM();
706	}	772	}
707		773
@@ -0,0 +1,11 @@		@@ -0,0 +1,11 @@
	1	+public class except
	2	+{
	3	+ public static void main (String[] args) throws Exception
	4	+ {
	5	+ throw new Exception("Testing exceptions");
	6	+ }
	7	+};
	8	+
	9	+
	10	+
	11	+
@@ -0,0 +1,9 @@		@@ -0,0 +1,9 @@
	1	+
	2	+public class out
	3	+{
	4	+ public static void main (String[] args)
	5	+ {
	6	+ System.out.println("Test out");
	7	+ System.err.println("Test err");
	8	+ }
	9	+};