libgphoto2/bindings/java/javatest.java.in

import swig.org.gphoto2.*;

public class javatest {

   public static void main(String argv[]) {
   	final String sCameraModel="USB PTP Class Camera";  // "Canon Powershot A75";

	System.out.println("loading JNI library \"gphoto2_jni\"");
	System.loadLibrary("gphoto2_jni");
		
	System.out.println(" JNI: Creating context...");
	_GPContext context = gphoto2.gp_context_new();

	// create and load list of ports - this should list all usb ports of all devices on the system, not just cameras
	System.out.println(" JNI: gphoto2.create_null_p_p__GPPortInfoList()");
	SWIGTYPE_p_p__GPPortInfoList ppInfoList=gphoto2.create_null_p_p__GPPortInfoList();  // create the empty pointer

	System.out.println(" JNI: gphoto2.gp_port_info_list_new()");
	gphoto2.gp_port_info_list_new(ppInfoList);  // create the new (empty) list and get a pointer to it

	System.out.println(" JNI: gphoto2.dereference_p_p__GPPortInfoList()");
	_GPPortInfoList infolist=gphoto2.dereference_p_p__GPPortInfoList(ppInfoList);  // dereference the pointer to get the (empty list) java object

	System.out.println(" JNI: gphoto2.gp_port_info_list_load()");
	int result = gphoto2.gp_port_info_list_load(infolist);  // populate the list object with current data
        if (result!=0) throw new RuntimeException("unexpected JNI result '" + result + "'");

     	_GPPortInfo portinfo = new _GPPortInfo();
	/*
	int k=gphoto2.gp_port_info_list_lookup_path (infolist, "usb:");
	result=gphoto2.gp_port_info_list_get_info (infolist, k, portinfo);
        if (result!=0) throw new RuntimeException("unexpected JNI result '" + result + "'");
        */

        if (gphoto2.gp_port_info_list_count(infolist)==0) throw new RuntimeException("no cameras detected ");

	// for each port in the list
	for(int nCurPortNum=0; nCurPortNum<gphoto2.gp_port_info_list_count(infolist); nCurPortNum++)
	{
	    System.out.println(" JNI: gphoto2.gp_port_info_list_get_info()");
	    _GPPortInfo portinfotmp=new _GPPortInfo();
	    gphoto2.gp_port_info_list_get_info(infolist, nCurPortNum, portinfotmp);  // get more info about the current port
	    System.out.println("  port " + nCurPortNum + " = '" + portinfotmp.getPath() + "'");
 
	    if ("usb:".equalsIgnoreCase(portinfotmp.getPath()) ) {
		portinfo=portinfotmp;
	    }
	    portinfotmp=null;
	}
		
	// release the info list resources
	gphoto2.gp_port_info_list_free(infolist);
	infolist=null;
	ppInfoList=null;

	// TODO is this really a camera on this port?

        System.out.println(" JNI: gphoto2.create_null_p_p__Camera()");
        SWIGTYPE_p_p__Camera ppCamera=gphoto2.create_null_p_p__Camera();

        System.out.println(" JNI: gphoto2.gp_camera_new() - Creating camera...");
        result=gphoto2.gp_camera_new (ppCamera);
        if (result!=0) throw new RuntimeException("unexpected JNI result '" + result + "'");

        System.out.println(" JNI: gphoto2.dereference_p_p__Camera()");
        _Camera cam=gphoto2.dereference_p_p__Camera(ppCamera);

        System.out.println(" JNI: gphoto2.create_null_p_p__CameraAbilitiesList()");
        SWIGTYPE_p_p__CameraAbilitiesList p_al=gphoto2.create_null_p_p__CameraAbilitiesList();

        System.out.println(" JNI: gphoto2.gp_abilities_list_new()");
        result=gphoto2.gp_abilities_list_new(p_al);
        if (result!=0) throw new RuntimeException("unexpected JNI result '" + result + "'");
         
        System.out.println(" JNI: gphoto2.dereference_p_p__CameraAbilitiesList()");
        _CameraAbilitiesList al=gphoto2.dereference_p_p__CameraAbilitiesList(p_al);

        System.out.println(" JNI: gphoto2.gp_abilities_list_load() - Loading Abilities...");
        result=gphoto2.gp_abilities_list_load(al, context);
        if (result!=0) throw new RuntimeException("unexpected JNI result '" + result + "'");

        System.out.println(" JNI: gphoto2.gp_camera_set_port_info() - Setting PortInfo on Camera...");
        result=gphoto2.gp_camera_set_port_info(cam, portinfo);
        if (result!=0) throw new RuntimeException("unexpected JNI result '" + result + "'");
        
        System.out.println(" JNI: gphoto2.gp_abilities_list_get_abilities() - Using Camera Model '" + sCameraModel + "'");
        CameraAbilities abilities=new CameraAbilities();
        result=gphoto2.gp_abilities_list_get_abilities(al, gphoto2.gp_abilities_list_lookup_model(al, sCameraModel), abilities);
        if (result!=0) throw new RuntimeException("unexpected JNI result '" + result + "'");
        
        System.out.println(" JNI: gphoto2.gp_abilities_list_free()");
        result=gphoto2.gp_abilities_list_free(al);
        if (result!=0) throw new RuntimeException("unexpected JNI result '" + result + "'");

        System.out.println(" JNI: gphoto2.gp_camera_set_abilities()");
        result=gphoto2.gp_camera_set_abilities(cam, abilities);
        if (result!=0) throw new RuntimeException("unexpected JNI result '" + result + "'");

        for (int i = 0; result!=0 && i<5; i++) {
            System.out.println(" JNI: gphoto2.gp_camera_init() - Initializing Camera...");
            result = gphoto2.gp_camera_init(cam, context);
            if (result != 0) {
                System.out.println("   << gphoto2.gp_camera_init() returned " + result + "...");
                try {
                    System.out.println("  **Sleeping 1000 msec...");
                    Thread.sleep(1000);  // pause for a bit
                } catch(InterruptedException e) {}
                // -52 = camera not found?  (when run with camera off)
                // -60 = not a camera? (when tried to init usb mouse as camera, got -52 here too)
            }
        }
        if (result == -60 || result == -52) { // looks like it wasn't a camera
            System.out.println("(port '" + portinfo.getPath() + "' was not a camera?)");
        }

        /* TODO change timeout
        SWIGTYPE_p_GPPort p = cam.getPort();
        _GPPort pp = new _GPPort();
        pp.setTimeout(1000*30);
        */
        
        
	// Now, take a picture
        System.out.println(" JNI: gphoto2.gp_camera_capture() - Capturing Image...");
        CameraFilePath cfpOut = new CameraFilePath();

        result=-1;
     	// int nLoops=0;
        for (int i=0; result!=0 && i<5; i++) {
            result = gphoto2.gp_camera_capture(cam, CameraCaptureType.GP_CAPTURE_IMAGE, cfpOut, context);
            if (result != 0) System.out.println("unexpected JNI result '" + result + "', retrying...");
        }
        if (result != 0) throw new RuntimeException("unexpected JNI result '" + result + "'");




        // TODO download image from camera
        /*
         * for each folder
         *   for each file
         *     check date
         *     download latest
         *     delete all
         */



	/*
	 * Don't forget to clean up when you don't need the camera any
	 * more. Please use unref instead of destroy - you'll never know
	 * if some part of the program still needs the camera.
	 */
	System.out.println(" JNI: gphoto2.gp_camera_unref() - Releasing Camera...");
        result = gphoto2.gp_camera_exit(cam, context);
	result = gphoto2.gp_camera_unref(cam);

	System.out.println("exiting");
	}
}


/*
 * Local Variables:
 * mode: java
 * End:
 */