On 6/20/13 10:26 AM, Rajath Shashidhara wrote: > Can I use this? > http://commons.apache.org/proper/commons-io/apidocs/org/apache/commons/io/IOUtils.html
in principal yes, just try if it fulfill your needs. Juergen > > > On Thu, Jun 20, 2013 at 12:48 PM, Rajath Shashidhara < > rajaths.raja...@gmail.com> wrote: > >> Hello Ariel, >> >> in you code: >> copyStream() is to be implemented by me or is it there in any library? >> >> >> On Thu, Jun 20, 2013 at 9:25 AM, Rajath Shashidhara < >> rajaths.raja...@gmail.com> wrote: >> >>> Thanks ariel. >>> I have finished major part of this code. I only had doubt in that >>> queryInterface part. >>> >>> >>> On Thu, Jun 20, 2013 at 1:08 AM, Ariel Constenla-Haile < >>> arie...@apache.org> wrote: >>> >>>> Hi Rajath, >>>> >>>> On Wed, Jun 19, 2013 at 09:55:21PM +0530, Rajath Shashidhara wrote: >>>>> Hello, >>>>> >>>>> I'm working on the XActiveDataSink. >>>>> I'm slightly confused about how to handle OpenCommandArgument2.Sink . >>>>> The object is the one which is filled with the XActiveDataSink object >>>> for >>>>> which I have to set the InputStream by calling setInputStream() and >>>> pass >>>>> the XInputStream implementation. >>>>> This is what I have understood. But, the confusing thing is why is the >>>>> datatype for Sink - Object? Shoudnt it be XActiveDataSink? I'm not >>>>> understanding how to handle this Sink. >>>> >>>> The OpenCommandArgument2.Sink can be of different kinds, that's why its >>>> type is defined in a generic way as css.uno.XInterface; this interface >>>> is the base interface of all other interfaces: >>>> >>>> http://www.openoffice.org/api/docs/common/ref/com/sun/star/ucb/OpenCommandArgument.html#Sink >>>> >>>> css.uno.XInterface, in this case, is mapped in the Jave bridge to >>>> java.lang.Object: >>>> >>>> http://wiki.openoffice.org/wiki/Documentation/DevGuide/ProUNO/Java/Mapping_of_Interface_Types >>>> >>>> You have to find out if the sink is >>>> >>>> a) com.sun.star.io.XOutputStream >>>> b) com.sun.star.io.XActiveDataSink >>>> c) com.sun.star.io.XActiveDataStreamer >>>> >>>> simply query the sink for each interface. Something like this: >>>> >>>> >>>> private Object open( >>>> com.sun.star.ucb.OpenCommandArgument2 aOpenCommand, >>>> com.sun.star.ucb.XCommandEnvironment xEnvironment) >>>> throws com.sun.star.uno.Exception { >>>> Object oRet = com.sun.star.uno.Any.VOID; >>>> >>>> int nOpenMode = aOpenCommand.Mode; >>>> if (nOpenMode == com.sun.star.ucb.OpenMode.ALL >>>> || nOpenMode == com.sun.star.ucb.OpenMode.DOCUMENTS >>>> || nOpenMode == com.sun.star.ucb.OpenMode.FOLDERS) { >>>> if (!isFolder(xEnvironment)) { >>>> throw new com.sun.star.lang.IllegalArgumentException( >>>> "The content is not a folder!"); >>>> } >>>> com.sun.star.ucb.XDynamicResultSet xResultSet = new >>>> DynamicResultSet( >>>> m_xContext, this, aOpenCommand, xEnvironment); >>>> oRet = xResultSet; >>>> } else if (nOpenMode == com.sun.star.ucb.OpenMode.DOCUMENT) { >>>> Object aSink = aOpenCommand.Sink; >>>> if (aSink == null) { >>>> throw new com.sun.star.lang.IllegalArgumentException( >>>> "open command without sink!"); >>>> } >>>> // the Sink can be >>>> // a) com.sun.star.io.XOutputStream >>>> // b) com.sun.star.io.XActiveDataSink >>>> // c) com.sun.star.io.XActiveDataStreamer >>>> com.sun.star.io.XActiveDataStreamer xActiveDataStreamer = >>>> UnoRuntime.queryInterface( >>>> com.sun.star.io.XActiveDataStreamer.class, aSink); >>>> if (xActiveDataStreamer != null) { >>>> com.sun.star.io.XStream xStream = >>>> getContentStream(xEnvironment); >>>> xActiveDataStreamer.setStream(xStream); >>>> } else { >>>> com.sun.star.io.XOutputStream xOutputStream = >>>> UnoRuntime.queryInterface( >>>> com.sun.star.io.XOutputStream.class, aSink); >>>> if (xOutputStream != null) { >>>> com.sun.star.io.XInputStream xInputStream = >>>> getContentInputStream(xEnvironment); >>>> copyStream(xInputStream, xOutputStream); >>>> } else { >>>> com.sun.star.io.XActiveDataSink xActiveDataSink = >>>> UnoRuntime.queryInterface( >>>> com.sun.star.io.XActiveDataSink.class, aSink); >>>> if (xActiveDataSink == null) { >>>> throw new com.sun.star.lang.IllegalArgumentException( >>>> "open command's sink is neither >>>> XActiveDataStreamer, XOutputStream nor XActiveDataSink!"); >>>> } >>>> com.sun.star.io.XInputStream xInputStream = >>>> getContentInputStream(xEnvironment); >>>> xActiveDataSink.setInputStream(xInputStream); >>>> } >>>> } >>>> } else if (nOpenMode == >>>> com.sun.star.ucb.OpenMode.DOCUMENT_SHARE_DENY_NONE || >>>> nOpenMode == >>>> com.sun.star.ucb.OpenMode.DOCUMENT_SHARE_DENY_WRITE){ >>>> throw new UnsupportedCommandException(); >>>> } >>>> return oRet; >>>> } >>>> >>>> >>>> >>>> Regards >>>> -- >>>> Ariel Constenla-Haile >>>> La Plata, Argentina >>>> >>> >>> >>> >>> -- >>> Rajath S, >>> M.Sc(Hons.) Physics, >>> Birla Institute of Technology and Science - Pilani, >>> Pilani >>> >> >> >> >> -- >> Rajath S, >> M.Sc(Hons.) Physics, >> Birla Institute of Technology and Science - Pilani, >> Pilani >> > > > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@openoffice.apache.org For additional commands, e-mail: dev-h...@openoffice.apache.org
