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From: Steven A. <ste...@gm...> - 2011-06-22 14:54:18
|
Hi,
I am trying to parse some modified dates of files but I am running into a few problems.
Below is the structure I have used to parse the date string from an FTP callback to a Date type in order to compare it with a file on the device:
class FileWithDate {
public final String fileName;
public final Date fileDate;
public FileWithDate(String fileName, String fileDate){
Date parsedDate = null;
try
{
DateFormat formatter = new SimpleDateFormat("MMM dd HH:mm");
parsedDate = (Date)formatter.parse(fileDate);
}
catch (Exception e)
{
Logging.Error(e);
}
this.fileName = fileName;
this.fileDate = parsedDate;
}
}
Is there anything in the NSDate type I can use to parse a string to a date?
Whenever I try to compile the code above on XCode it fails to build as it can't find the files. I guess this has not been written yet?
Would be greatful for any help :)
Steve
|
|
From: Paul P. <bay...@gm...> - 2011-06-20 14:48:36
|
FYI - I implemented the C version of wait/notify/sleep/interrupt a few days
ago, so you may use Thread.sleep(long) now.
Thanks,
Paul
On Thu, May 19, 2011 at 1:38 PM, Alex Lewis <ale...@gm...> wrote:
> Ah yes, take out the sleep and finished flag. Sorry that was mistakenly
> left in from other tests I had been trying. Without the sleep and finished
> flag the system output is still (when using the google url)...
>
> Received data [<!doctype html><html><head]
> Finish loading
>
> So looking at the implementation of NSURLConnection calling
> "connectionWithRequest" starts a new thread so the method calls should be
> asynchronous back to the delegate? So I would expect the
> "applicationDidFinishLaunching" method to finish quickly but whilst the
> NSURLConnection thread is running to get the output generated by the
> delegate. Looking at the code again I see there should be just the one
> "Received data" message followed by the "Finish Loading" message but there
> should be a lot more data in NSData's byte array.
>
> Thanks,
> Alex
>
>
> Just in case here's the modified code...
>
> @Override
> public void applicationDidFinishLaunching(UIApplication app) {
> try {
> final NSURL url = NSURL.URLWithString("http://www.google.com");
> final NSMutableURLRequest req = new NSMutableURLRequest(url);
>
> NSURLConnectionDelegate delegate = new NSURLConnectionDelegate() {
> @Override
> public void connectionDidFailWithError(
> NSURLConnection connection, NSError error) {
> super.connectionDidFailWithError(connection, error);
> System.out.println("Error [" + error + "]");
> }
>
> @Override
> public void connectionDidFinishLoading(
> NSURLConnection connection) {
> super.connectionDidFinishLoading(connection);
> System.out.println("Finish loading");
> }
>
> @Override
> public void connectionDidReceiveData(
> NSURLConnection connection, NSData data) {
> super.connectionDidReceiveData(connection, data);
> System.out.println("Received data [" + new String(data.getBytes())
> + "]");
> }
> };
>
> NSURLConnection.connectionWithRequest(req, delegate);
> }
> catch (Exception e) {
> System.err.println("Exception doing HTTP" + e);
> }
> }
>
> On 19 May 2011 18:05, Arno Puder <ar...@pu...> wrote:
>
>>
>> I'm not sure if you should do that sleep() in your code. The
>> NSURLConnection delegate will most likely be executed in the context of
>> the same thread that created it, but if you put that thread to sleep,
>> problems will occur. Basically you implemented a busy wait which is
>> never a good idea. This in not an XMLVM problem, IMHO.
>>
>> Arno
>>
>>
>> On 5/19/11 6:53 AM, Alex Lewis wrote:
>> > Hi,
>> > I wrote a very simple Java->iPhone application to open a connection
>> > and read the data in the response, but I found I only ever got back 26
>> > bytes of data. Here's the simplest code I could put together which
>> > exhibits the problem...
>> >
>> > private boolean finished = false;
>> > @Override
>> > public void applicationDidFinishLaunching(UIApplication app) {
>> > try {
>> > final NSURL url = NSURL.URLWithString("http://www.google.com");
>> > final NSMutableURLRequest req = new NSMutableURLRequest(url);
>> > NSURLConnectionDelegate delegate = new NSURLConnectionDelegate() {
>> > @Override
>> > public void connectionDidFailWithError(
>> > NSURLConnection connection, NSError error) {
>> > super.connectionDidFailWithError(connection, error);
>> > System.out.println("Error [" + error + "]");
>> > }
>> > @Override
>> > public void connectionDidFinishLoading(
>> > NSURLConnection connection) {
>> > super.connectionDidFinishLoading(connection);
>> > finished = true;
>> > System.out.println("Finish loading");
>> > }
>> > @Override
>> > public void connectionDidReceiveData(
>> > NSURLConnection connection, NSData data) {
>> > super.connectionDidReceiveData(connection, data);
>> > System.out.println("Received data [" + new String(data.getBytes()) +
>> "]");
>> > }
>> > };
>> > NSURLConnection.connectionWithRequest(req, delegate);
>> > // Wait until all the data has been received or we hit a
>> > 20s limit.
>> > int i = 0;
>> > while (!finished && i < 20) {
>> > Thread.sleep(1000);
>> > i++;
>> > }
>> > }
>> > catch (Exception e) {
>> > System.err.println("Exception doing HTTP" + e);
>> > }
>> > }
>> >
>> > I would have expected multiple "Received Data[.......]" messages but I
>> > only ever get one of 26 characters. I took a look at the NSData java
>> > class, specifically the readData method and I can see why it is failing.
>> > The do/while loop in there only continues to read data if its buffer has
>> > been filled and assumes that if the read() method returns a read count
>> > of less than the buffer size that all the data has been read. Using the
>> > code above the response contains an initial 26 bytes and consequently
>> > stops as the buffer in NSData has not been completely filled. I wrote an
>> > equivalent pure java application and it exhibits the same behaviour
>> > using the readData code. Rewriting the readData method so it keeps
>> > reading until -1 is returned and buffering the code appropriately
>> > retrieves all the data which is approximately 9k bytes.
>> >
>> > Is this a bug or have I done something wrong? Would the code work
>> > properly if the application were running on an iPhone rather than in the
>> > Emulator?
>> >
>> > Thanks,
>> > Alex
>> >
>> >
>> >
>> >
>> ------------------------------------------------------------------------------
>> > What Every C/C++ and Fortran developer Should Know!
>> > Read this article and learn how Intel has extended the reach of its
>> > next-generation tools to help Windows* and Linux* C/C++ and Fortran
>> > developers boost performance applications - including clusters.
>> > http://p.sf.net/sfu/intel-dev2devmay
>> >
>> >
>> >
>> > _______________________________________________
>> > xmlvm-users mailing list
>> > xml...@li...
>> > https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>>
>>
>> ------------------------------------------------------------------------------
>> What Every C/C++ and Fortran developer Should Know!
>> Read this article and learn how Intel has extended the reach of its
>> next-generation tools to help Windows* and Linux* C/C++ and Fortran
>> developers boost performance applications - including clusters.
>> http://p.sf.net/sfu/intel-dev2devmay
>> _______________________________________________
>> xmlvm-users mailing list
>> xml...@li...
>> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>>
>
>
>
> ------------------------------------------------------------------------------
> What Every C/C++ and Fortran developer Should Know!
> Read this article and learn how Intel has extended the reach of its
> next-generation tools to help Windows* and Linux* C/C++ and Fortran
> developers boost performance applications - including clusters.
> http://p.sf.net/sfu/intel-dev2devmay
> _______________________________________________
> xmlvm-users mailing list
> xml...@li...
> https://lists.sourceforge.net/lists/listinfo/xmlvm-users
>
>
|
|
From: Arno P. <ar...@pu...> - 2011-06-15 09:15:55
|
fixed. Couple of notes: - ReflectionTest is a console app. With the fix I just committed you can also run it with --target=iphonec, but note that the output will be on the console as ReflectionTest has no UI. - Note that the C backend does not yet support return types other than void for method invocations done via reflection. I will fix that soon. ReflectionTest does not do this, so it should work just fine. Arno On 6/15/11 2:32 AM, Sal wrote: > > Hello, > > I just did a fresh SVN checkout and built a test app via: > > java -Xmx700m -jar dist/xmlvm.jar --target=iphonec > --in=bin/org/xmlvm/test/ReflectionTest.class --out=ReflectionTest > > opened the xcode project, and get this error when building: > > /Users/username/Documents/iphonedev/xmlvm/ReflectionTest/dist/../build/xcode/src/app/native_org_xmlvm_runtime_XMLVMUtil.m:9:39: > error: org_xmlvm_iphone_NSString.h: No such file or directory > > Am I doing anything wrong? Thanks in advance for any help! > > - Sal > > > > ------------------------------------------------------------------------------ > EditLive Enterprise is the world's most technically advanced content > authoring tool. Experience the power of Track Changes, Inline Image > Editing and ensure content is compliant with Accessibility Checking. > http://p.sf.net/sfu/ephox-dev2dev > > > > _______________________________________________ > xmlvm-users mailing list > xml...@li... > https://lists.sourceforge.net/lists/listinfo/xmlvm-users |
|
From: Panayotis K. <pan...@pa...> - 2011-06-15 06:48:02
|
I am happy to announce that the demo projects that are inside the XMLVM repository now compile with the C backend! There is a recent update of the build scripts which allow on demand usage of C or Objective C backend. The parameter to control this is inside the "xmlvm.properties" file, property named "xmlvm.backend" You can upgrade your current projects with this command: xmlvm --skeleton=iphone:update --app-name=... --out=... Note, some files might need some manual fine-tuning, to inherit your project options |
|
From: Sal <sv...@gm...> - 2011-06-15 01:11:58
|
Ok - Found and manually added those missing files (is that correct?) But now the error is: /ReflectionTest/dist/../build/xcode/src/app/org_xmlvm_iphone_NSObject.h:26: error: 'XMLVM_ITABLE_SIZE_org_xmlvm_iphone_NSObject' undeclared here (not in a function) Let me know if any insight!! Thanks, - Sal On Tue, Jun 14, 2011 at 8:32 PM, Sal <sv...@gm...> wrote: > > Hello, > > I just did a fresh SVN checkout and built a test app via: > > java -Xmx700m -jar dist/xmlvm.jar --target=iphonec > --in=bin/org/xmlvm/test/ReflectionTest.class --out=ReflectionTest > > opened the xcode project, and get this error when building: > > /Users/username/Documents/iphonedev/xmlvm/ReflectionTest/dist/../build/xcode/src/app/native_org_xmlvm_runtime_XMLVMUtil.m:9:39: > error: org_xmlvm_iphone_NSString.h: No such file or directory > > Am I doing anything wrong? Thanks in advance for any help! > > - Sal > |
|
From: Sal <sv...@gm...> - 2011-06-15 00:32:36
|
Hello, I just did a fresh SVN checkout and built a test app via: java -Xmx700m -jar dist/xmlvm.jar --target=iphonec --in=bin/org/xmlvm/test/ReflectionTest.class --out=ReflectionTest opened the xcode project, and get this error when building: /Users/username/Documents/iphonedev/xmlvm/ReflectionTest/dist/../build/xcode/src/app/native_org_xmlvm_runtime_XMLVMUtil.m:9:39: error: org_xmlvm_iphone_NSString.h: No such file or directory Am I doing anything wrong? Thanks in advance for any help! - Sal |
|
From: Panayotis K. <pan...@pa...> - 2011-06-14 14:43:12
|
On 14 Ιουν 2011, at 4:47 μ.μ., Yenwen Feng wrote:
> Hi,
>
> This is my first time trying out XMLVM. I was able to compile the project, but failed to compile the demos.
> Below is the exception I got:
>
> BUILD FAILED
> D:\java\xmlvm\build.xml:340: The following error occurred while executing this line:
> D:\java\xmlvm\demo\iphone\ihelloworld\fullscreen\nbproject\xmlvm.xml:95: The following error occurred while executing this line:
> D:\java\xmlvm\demo\iphone\ihelloworld\fullscreen\nbproject\build-Xcode.xml:48: java.io.IOException: Unable to use path D:\java\xmlvm\demo\iphone\ihelloworld\fullscreen\D:\java\xmlvm\demo\iphone\ihelloworld\fullscreen\build\plugins\objc
> at org.xmlvm.ant.SrcPluginExtractor.execute(SrcPluginExtractor.java:90)
> at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
> at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
>
>
>
>
> After taking a look at the source code, I found out that there is a absolute path problem in SrcPluginExtractor.java.
> See below:
>
> ### Eclipse Workspace Patch 1.0
> #P xmlvm
> Index: src/tools/ant/xcode-updater/org/xmlvm/ant/SrcPluginExtractor.java
> ===================================================================
> --- src/tools/ant/xcode-updater/org/xmlvm/ant/SrcPluginExtractor.java (revision 1718)
> +++ src/tools/ant/xcode-updater/org/xmlvm/ant/SrcPluginExtractor.java (working copy)
> @@ -144,8 +144,9 @@
> }
>
> private File getProjectFile(String path) {
> - if (path.startsWith("/"))
> - return new File(path);
> + File p = new File(path);
> + if(p.isAbsolute())
> + return p;
> return new File(getProject().getBaseDir(), path).getAbsoluteFile();
> }
>
>
> How this helps.
Please note that an iPhone project can only be compiled with a Mac.
You can not compile it under Windows.
|
|
From: Yenwen F. <tem...@gm...> - 2011-06-14 13:47:57
|
Hi,
This is my first time trying out XMLVM. I was able to compile the project,
but failed to compile the demos.
Below is the exception I got:
BUILD FAILED
D:\java\xmlvm\build.xml:340: The following error occurred while executing
this line:
D:\java\xmlvm\demo\iphone\ihelloworld\fullscreen\nbproject\xmlvm.xml:95: The
following error occurred while executing this line:
D:\java\xmlvm\demo\iphone\ihelloworld\fullscreen\nbproject\build-Xcode.xml:48:
java.io.IOException: Unable to use path
D:\java\xmlvm\demo\iphone\ihelloworld\fullscreen\D:\java\xmlvm\demo\iphone\ihelloworld\fullscreen\build\plugins\objc
at
org.xmlvm.ant.SrcPluginExtractor.execute(SrcPluginExtractor.java:90)
at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
at sun.reflect.GeneratedMethodAccessor6.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
After taking a look at the source code, I found out that there is a absolute
path problem in SrcPluginExtractor.java.
See below:
### Eclipse Workspace Patch 1.0
#P xmlvm
Index: src/tools/ant/xcode-updater/org/xmlvm/ant/SrcPluginExtractor.java
===================================================================
--- src/tools/ant/xcode-updater/org/xmlvm/ant/SrcPluginExtractor.java (revision
1718)
+++ src/tools/ant/xcode-updater/org/xmlvm/ant/SrcPluginExtractor.java (working
copy)
@@ -144,8 +144,9 @@
}
private File getProjectFile(String path) {
- if (path.startsWith("/"))
- return new File(path);
+ File p = new File(path);
+ if(p.isAbsolute())
+ return p;
return new File(getProject().getBaseDir(), path).getAbsoluteFile();
}
How this helps.
BR,
Yenwen
|
|
From: Daniel v. d. H. <mo...@da...> - 2011-06-10 21:54:22
|
Hello,the survey results are available online at:English: http://www.slideshare.net/dvdh/survey-results-cross-platform-development-of-mobile-applicationsDeutsch: http://www.slideshare.net/dvdh/umfrageergebnisse-crossplatform-entwicklung-mobiler-anwendungenThank you again for your participation and patience!Best regardsDaniel von der Helm |
|
From: Arno P. <ar...@pu...> - 2011-05-30 07:08:56
|
you use Long.toString(long, int) in your program but that method isn't implemented for the Objective-C backend. You can either implement the missing method or try the C backend. Arno On 5/29/11 11:29 PM, cpsingh wrote: > Hi Arno > I am getting the following error message when i am executing the App. My > app is made in Java and converted in Iphone using Mac. > [Session started at 2011-05-29 19:40:22 +0530.] > 2011-05-29 19:40:25.492 Untitled[5369:207] +[java_lang_Long > toString___long_int::]: unrecognized selector sent to class 0xcaa80 > 2011-05-29 19:40:25.496 Untitled[5369:207] *** Terminating app due to > uncaught exception 'NSInvalidArgumentException', reason: > '+[java_lang_Long toString___long_int::]: unrecognized selector sent to > class 0xcaa80' > *** Call stack at first throw: > ( > 0 CoreFoundation 0x00f2bbe9 __exceptionPreprocess + 185 > 1 libobjc.A.dylib 0x010805c2 objc_exception_throw + 47 > 2 CoreFoundation 0x00f2d7bb +[NSObject(NSObject) > doesNotRecognizeSelector:] + 187 > 3 CoreFoundation 0x00e9d366 ___forwarding___ + 966 > 4 CoreFoundation 0x00e9cf22 _CF_forwarding_prep_0 + 50 > 5 Untitled 0x00006296 -[counterfeit_tms_OTPAlgo > byteArrayToHex___byte_ARRAYTYPE:] + 979 > 6 Untitled 0x00008d63 +[counterfeit_tms_OTPAlgo > main___java_lang_String_ARRAYTYPE:] + 464 > 7 Untitled 0x000095db main + 278 > 8 Untitled 0x00001e75 start + 53 > ) > terminate called after throwing an instance of 'NSException' |
|
From: cpsingh <cp...@ak...> - 2011-05-30 06:30:09
|
Hi Arno I am getting the following error message when i am executing the App. My app is made in Java and converted in Iphone using Mac. [Session started at 2011-05-29 19:40:22 +0530.] 2011-05-29 19:40:25.492 Untitled[5369:207] +[java_lang_Long toString___long_int::]: unrecognized selector sent to class 0xcaa80 2011-05-29 19:40:25.496 Untitled[5369:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[java_lang_Long toString___long_int::]: unrecognized selector sent to class 0xcaa80' *** Call stack at first throw: ( 0 CoreFoundation 0x00f2bbe9 __exceptionPreprocess + 185 1 libobjc.A.dylib 0x010805c2 objc_exception_throw + 47 2 CoreFoundation 0x00f2d7bb +[NSObject(NSObject) doesNotRecognizeSelector:] + 187 3 CoreFoundation 0x00e9d366 ___forwarding___ + 966 4 CoreFoundation 0x00e9cf22 _CF_forwarding_prep_0 + 50 5 Untitled 0x00006296 -[counterfeit_tms_OTPAlgo byteArrayToHex___byte_ARRAYTYPE:] + 979 6 Untitled 0x00008d63 +[counterfeit_tms_OTPAlgo main___java_lang_String_ARRAYTYPE:] + 464 7 Untitled 0x000095db main + 278 8 Untitled 0x00001e75 start + 53 ) terminate called after throwing an instance of 'NSException' |
|
From: Paul P. <bay...@gm...> - 2011-05-26 16:35:04
|
That's good! I'll get off my soapbox :) On Thu, May 26, 2011 at 11:11 AM, Panayotis Katsaloulis < pan...@pa...> wrote: > > On May 25, 2011, at 5:55 PM, Paul Poley wrote: > > > I'm going to go off on a tangent here, not really directed at this > conversation, but somewhat relevant. > > > > My opinion is that reflection is a necessary evil that should be avoided > whenever possible. One of the key words in that is "necessary." A great > use of reflection is for web services or other generated code. And that > equivalent is appropriately used in XMLVM. I believe it is okay in this > type of situation because all parts using reflection are generated & not > typed by hand. E.g. a web service is generated & a client is generated, so > if an update occurs, we just regenerate. > > > > The "evil" part, in my opinion, comes when developers are manually typing > method names & class names into Strings, thus avoiding the compiler. This > is unfortunately not a rarity in the real world, such as in configuration > files. My hope is that as annotations gain muster, they will help squash > that practice where they can. > > > > I realize there are exceptions to what I just said, but I still try to > avoid it at all costs. Since reflection is learned at a more advanced > stage, it seems it is sometimes considered advantageous & advanced to use > it, but I believe that to be a misconception. > > > > Anyways, I am not trying to contradict anything in this email chain, but > rather just get on my soapbox about "evil" reflection & have a conversation > in general. I'm interested if anyone has some other thoughts on this. > > > > Paul > > Exactly, this is the spirit of this change - to get rid of reflection. :) > > ------------------------------------------------------------------------------ > vRanger cuts backup time in half-while increasing security. > With the market-leading solution for virtual backup and recovery, > you get blazing-fast, flexible, and affordable data protection. > Download your free trial now. > http://p.sf.net/sfu/quest-d2dcopy1 > _______________________________________________ > xmlvm-users mailing list > xml...@li... > https://lists.sourceforge.net/lists/listinfo/xmlvm-users > |
|
From: Panayotis K. <pan...@pa...> - 2011-05-26 16:11:16
|
On May 25, 2011, at 5:55 PM, Paul Poley wrote: > I'm going to go off on a tangent here, not really directed at this conversation, but somewhat relevant. > > My opinion is that reflection is a necessary evil that should be avoided whenever possible. One of the key words in that is "necessary." A great use of reflection is for web services or other generated code. And that equivalent is appropriately used in XMLVM. I believe it is okay in this type of situation because all parts using reflection are generated & not typed by hand. E.g. a web service is generated & a client is generated, so if an update occurs, we just regenerate. > > The "evil" part, in my opinion, comes when developers are manually typing method names & class names into Strings, thus avoiding the compiler. This is unfortunately not a rarity in the real world, such as in configuration files. My hope is that as annotations gain muster, they will help squash that practice where they can. > > I realize there are exceptions to what I just said, but I still try to avoid it at all costs. Since reflection is learned at a more advanced stage, it seems it is sometimes considered advantageous & advanced to use it, but I believe that to be a misconception. > > Anyways, I am not trying to contradict anything in this email chain, but rather just get on my soapbox about "evil" reflection & have a conversation in general. I'm interested if anyone has some other thoughts on this. > > Paul Exactly, this is the spirit of this change - to get rid of reflection. :) |
|
From: Paul P. <bay...@gm...> - 2011-05-25 14:55:51
|
I'm going to go off on a tangent here, not really directed at this conversation, but somewhat relevant. My opinion is that reflection is a necessary evil that should be avoided whenever possible. One of the key words in that is "necessary." A great use of reflection is for web services or other generated code. And that equivalent is appropriately used in XMLVM. I believe it is okay in this type of situation because all parts using reflection are generated & not typed by hand. E.g. a web service is generated & a client is generated, so if an update occurs, we just regenerate. The "evil" part, in my opinion, comes when developers are manually typing method names & class names into Strings, thus avoiding the compiler. This is unfortunately not a rarity in the real world, such as in configuration files. My hope is that as annotations gain muster, they will help squash that practice where they can. I realize there are exceptions to what I just said, but I still try to avoid it at all costs. Since reflection is learned at a more advanced stage, it seems it is sometimes considered advantageous & advanced to use it, but I believe that to be a misconception. Anyways, I am not trying to contradict anything in this email chain, but rather just get on my soapbox about "evil" reflection & have a conversation in general. I'm interested if anyone has some other thoughts on this. Paul On Fri, May 20, 2011 at 2:10 AM, Panayotis Katsaloulis < pan...@pa...> wrote: > > On May 20, 2011, at 9:56 AM, Arno Puder wrote: > > > hmm. Do you want to be able to call arbitrary *methods* or a certain > method on arbitrary *objects*? For the former you need reflected, for > the latter not. Actually, take a look at [DispatcherObject run] (in > NSObject.m) to get an idea how you can invoke a Java method from C code. > > > > certain method, arbitrary objects. > I did, I actually found these two parts: > java_lang_reflect_Method* method = (*(JAVA_OBJECT (*)(JAVA_OBJECT, > JAVA_OBJECT, JAVA_OBJECT)) targetClass->tib->vtable[ > XMLVM_VTABLE_IDX_java_lang_Class_getMethod___java_lang_String_java_lang_Class_1ARRAY])(targetClass, > methodName, paramTypes); > and > (*(JAVA_OBJECT (*)(JAVA_OBJECT, JAVA_OBJECT, JAVA_OBJECT)) method->tib-> > vtable[ > XMLVM_VTABLE_IDX_java_lang_reflect_Method_invoke___java_lang_Object_java_lang_Object_1ARRAY])(method, > target, params); > but I am a bit confused how to decode it. > Moreover it seems that they use reflection - that's why I asked. > > > And a last probably silly question: > > How do I convert an ObjC String to java_lang_String ? > > (and for completeness and back?) > > > NSString* toNSString(JAVA_OBJECT o) > JAVA_OBJECT toJavaString(NSString* str) > > both defined in NSString.m > > > Oh , I missed that part - I was looking under java_lang_String :) > > > > ------------------------------------------------------------------------------ > What Every C/C++ and Fortran developer Should Know! > Read this article and learn how Intel has extended the reach of its > next-generation tools to help Windows* and Linux* C/C++ and Fortran > developers boost performance applications - including clusters. > http://p.sf.net/sfu/intel-dev2devmay > _______________________________________________ > xmlvm-users mailing list > xml...@li... > https://lists.sourceforge.net/lists/listinfo/xmlvm-users > > |
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From: Domenico De F. <dom...@gm...> - 2011-05-23 10:22:03
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Hi all,
I spread the voice about my Java2iPhone project and the many wonders of
XMLVM :-)
A colleague now asks me to try to cross-compile an Android application to
iPhone, something I've never tried.
Starting from the Eclipse project, I created an XMLVM migration project
followig the documentation and tried to cross-compile.
I have a couple of questions about this now:
1) Is it still possible, from the XMLVM project, to run the app in the
Android simulator? I tried to set the External Tool Configuration
to the -run-Android target but it seems it runs the cross-compilation
every time. Also, I tried the simple Run As Android Application
but I get some errors on the XMLVM build files that should not be
involved in the process.
2) This is something I never really understood also in Java2iPhone: If my
project uses some external libraries like, let's say, a JSON parser,
how can I tell XMLVM to cross-compile them too? In Java2iPhone when I
had the necessity, I just retrieved the Java source code for the library
and imported it in my project; however it seems to be reasonable that it
should be possible to directly tell XMLVM to cross-compile the jar file
since it contains .class files too. Is it done using the -in argument?
In that case, is there a way of using it without the need for the command
line?
It would be more confortable to launch XMLVM from eclipse just setting
the -in argument somewhere, instead of having to compile the java project
and then use the command line to run XMLVM.
Thank you for your help!
--
Domenico De Fano
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From: Arno P. <ar...@pu...> - 2011-05-21 21:29:55
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ah, ok. Now I understand. That should be OK. The values will be cast to an unsigned short by the C compiler. Perhaps it would be better to emit an unsigned short for clarity, but the current version should still be correct. Arno On 5/20/11 12:14 AM, Panayotis Katsaloulis wrote: > > On May 20, 2011, at 9:58 AM, Arno Puder wrote: > >> >> please send a small, self-contained example. >> >> Arno > > The iFireworks project. > There are 13 entries like this. > For a quick list: > cat .../constant_pool.m | grep JAVA_ARRAY_CHAR | grep - > > ------------------------------------------------------------------------------ > What Every C/C++ and Fortran developer Should Know! > Read this article and learn how Intel has extended the reach of its > next-generation tools to help Windows* and Linux* C/C++ and Fortran > developers boost performance applications - including clusters. > http://p.sf.net/sfu/intel-dev2devmay > _______________________________________________ > xmlvm-users mailing list > xml...@li... > https://lists.sourceforge.net/lists/listinfo/xmlvm-users |
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From: Markus B. <mar...@go...> - 2011-05-20 10:37:52
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Thank you. That's just the information I needed. 2011/5/19 Arno Puder <ar...@pu...> > > > On 5/19/11 12:28 AM, Markus Balsam wrote: > >> Hello Arno, >> >> first of all thanks for your quick response! >> >> to 1. I am aware that I can see the API in the locations you mentioned. >> I asked that question with some written/detailed documentation in mind. >> But I guess the official Android/iOS documentations will be ok. >> > > I would consider this a key aspect of XMLVM: you can use the official > Android and iOS documentation. > > > to 2. I know that your API doesn't feature all the Cocoa classes and I >> am sure that your API is correct. What I really wanted to know was if >> the classes themselves are complete, meaning that for example your >> WebView implementation features ALL the methods the UIWebView class has. >> > > Not every compatibility class has all the methods. You will need to check > that with the official documentation. > > > to 4. In my case it is very important that I can send http requests and >> handle either json or xml responses. Is that possible with your current >> API? >> > > HTTP requests are supported. We are currently working on XML parsing > support for the C backend. For json I imagine it is just a matter of > including an appropriate implementation via --in=json-impl.jar > > Arno > |
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From: Panayotis K. <pan...@pa...> - 2011-05-20 07:53:06
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On May 20, 2011, at 10:14 AM, Panayotis Katsaloulis wrote:
>
> On May 20, 2011, at 9:58 AM, Arno Puder wrote:
>
>>
>> please send a small, self-contained example.
>>
>> Arno
>
> The iFireworks project.
> There are 13 entries like this.
> For a quick list:
> cat .../constant_pool.m | grep JAVA_ARRAY_CHAR | grep -
I was also trying to add a simple unicode string in the beginning of this demo.
Namely at the very beginning after applicationDidFinishLaunching, I added this code:
System.out.println("QQQQ-Καλημέρα!");
I checked it and this does not contain any negative values.
When run, Xcode fails to attach to the executable and the binary crashes.
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From: Panayotis K. <pan...@pa...> - 2011-05-20 07:15:02
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On May 20, 2011, at 9:58 AM, Arno Puder wrote: > > please send a small, self-contained example. > > Arno The iFireworks project. There are 13 entries like this. For a quick list: cat .../constant_pool.m | grep JAVA_ARRAY_CHAR | grep - |
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From: Panayotis K. <pan...@pa...> - 2011-05-20 07:10:45
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On May 20, 2011, at 9:56 AM, Arno Puder wrote: > > hmm. Do you want to be able to call arbitrary *methods* or a certain > method on arbitrary *objects*? For the former you need reflected, for > the latter not. Actually, take a look at [DispatcherObject run] (in > NSObject.m) to get an idea how you can invoke a Java method from C code. certain method, arbitrary objects. I did, I actually found these two parts: java_lang_reflect_Method* method = (*(JAVA_OBJECT (*)(JAVA_OBJECT, JAVA_OBJECT, JAVA_OBJECT)) targetClass->tib->vtable[XMLVM_VTABLE_IDX_java_lang_Class_getMethod___java_lang_String_java_lang_Class_1ARRAY])(targetClass, methodName, paramTypes); and (*(JAVA_OBJECT (*)(JAVA_OBJECT, JAVA_OBJECT, JAVA_OBJECT)) method->tib->vtable[XMLVM_VTABLE_IDX_java_lang_reflect_Method_invoke___java_lang_Object_java_lang_Object_1ARRAY])(method, target, params); but I am a bit confused how to decode it. Moreover it seems that they use reflection - that's why I asked. >> And a last probably silly question: >> How do I convert an ObjC String to java_lang_String ? >> (and for completeness and back?) > > NSString* toNSString(JAVA_OBJECT o) > JAVA_OBJECT toJavaString(NSString* str) > > both defined in NSString.m > Oh , I missed that part - I was looking under java_lang_String :) |
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From: Arno P. <ar...@pu...> - 2011-05-20 06:58:17
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please send a small, self-contained example. Arno On 5/19/11 11:56 PM, Panayotis Katsaloulis wrote: > Hello all! > > When I had a peek at the file constant_pool.m (whereI believe is the pool for all static Strings), I found some entries with negative values. > Since the Java char datatype is an unsigned short, I have the feeling that these numbers are not right. > ------------------------------------------------------------------------------ > What Every C/C++ and Fortran developer Should Know! > Read this article and learn how Intel has extended the reach of its > next-generation tools to help Windows* and Linux* C/C++ and Fortran > developers boost performance applications - including clusters. > http://p.sf.net/sfu/intel-dev2devmay > _______________________________________________ > xmlvm-users mailing list > xml...@li... > https://lists.sourceforge.net/lists/listinfo/xmlvm-users |
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From: Arno P. <ar...@pu...> - 2011-05-20 06:57:06
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On 5/19/11 11:47 PM, Panayotis Katsaloulis wrote:
>>> 1) what is the reason of this variable
>>>
>>> static NSObject* dispatchObject = nil;
>>>
>>> in the NSObject class of the C backend?
>>
>> The C wrapper use this object to call the performSelectorOnMainThread:
>> method on a real Objective-C object.
>
> The reason I ask is because I can not find it anywhere in the code, and probably it is a leftover.
ah, ok, you are right. It is indeed a left-over. The dispatcher object
is created in performSelectorOnMainThread.
>>> 2) I have a JAVA_OBJECT , say "o1"
>>> This object, (in java) it has a specific method, let's say
>>> public void myMethod(Object val) {..}
>>>
>>> How do I call this method from inside C, given I have the pointer o1 of this object?
>>
>> It depends if the call is made through an interface type or class type.
>> I suggest that you write a mini-Java program that does this call (in
>> Java) and then cross-compile it with --target=posix. Then you can look
>> at the generated code.
>
> I want to do this in the compatibility library for arbitrary objects, in order to implement a method of an interface, so I don't know in advance what this would be.
> Do you believe I should use reflection then?
hmm. Do you want to be able to call arbitrary *methods* or a certain
method on arbitrary *objects*? For the former you need reflected, for
the latter not. Actually, take a look at [DispatcherObject run] (in
NSObject.m) to get an idea how you can invoke a Java method from C code.
> And a last probably silly question:
> How do I convert an ObjC String to java_lang_String ?
> (and for completeness and back?)
NSString* toNSString(JAVA_OBJECT o)
JAVA_OBJECT toJavaString(NSString* str)
both defined in NSString.m
Arno
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From: Panayotis K. <pan...@pa...> - 2011-05-20 06:56:33
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Hello all! When I had a peek at the file constant_pool.m (whereI believe is the pool for all static Strings), I found some entries with negative values. Since the Java char datatype is an unsigned short, I have the feeling that these numbers are not right. |
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From: Panayotis K. <pan...@pa...> - 2011-05-20 06:47:33
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First of all, thank you Arno for being for one more time helpful.
On May 20, 2011, at 4:18 AM, Arno Puder wrote:
>
>
> On 5/19/11 4:35 PM, Panayotis Katsaloulis wrote:
>> I have two questions:
>>
>> 1) what is the reason of this variable
>>
>> static NSObject* dispatchObject = nil;
>>
>> in the NSObject class of the C backend?
>
> The C wrapper use this object to call the performSelectorOnMainThread:
> method on a real Objective-C object.
The reason I ask is because I can not find it anywhere in the code, and probably it is a leftover.
>> 2) I have a JAVA_OBJECT , say "o1"
>> This object, (in java) it has a specific method, let's say
>> public void myMethod(Object val) {..}
>>
>> How do I call this method from inside C, given I have the pointer o1 of this object?
>
> It depends if the call is made through an interface type or class type.
> I suggest that you write a mini-Java program that does this call (in
> Java) and then cross-compile it with --target=posix. Then you can look
> at the generated code.
I want to do this in the compatibility library for arbitrary objects, in order to implement a method of an interface, so I don't know in advance what this would be.
Do you believe I should use reflection then?
And a last probably silly question:
How do I convert an ObjC String to java_lang_String ?
(and for completeness and back?)
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From: Arno P. <ar...@pu...> - 2011-05-20 01:19:20
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On 5/19/11 4:35 PM, Panayotis Katsaloulis wrote:
> I have two questions:
>
> 1) what is the reason of this variable
>
> static NSObject* dispatchObject = nil;
>
> in the NSObject class of the C backend?
The C wrapper use this object to call the performSelectorOnMainThread:
method on a real Objective-C object.
> 2) I have a JAVA_OBJECT , say "o1"
> This object, (in java) it has a specific method, let's say
> public void myMethod(Object val) {..}
>
> How do I call this method from inside C, given I have the pointer o1 of this object?
It depends if the call is made through an interface type or class type.
I suggest that you write a mini-Java program that does this call (in
Java) and then cross-compile it with --target=posix. Then you can look
at the generated code.
Arno
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