Hello John, as you point the InputRepresentation sets the stream to null in order to consider it empty. The problem with input streams is that they can be read only once. Once the bytes are read, you can't get them back, unless you store them elsewhere. That's why you can use a StringRepresentation which stores the bytes in memory.
best regards, Thierry Boileau > I should of mentioned I had used the approach you mentioned as a > "workaround". > > Representation entity = new StringRepresentation(text, ...) > request.setEntity(entity) > > So is the call to setStream(null) just to ensure the stream is > considered empty? > > Thanks > > ------------------------------------------------------------------------ > *From:* Stephen Groucutt <stephen.grouc...@gmail.com> > *To:* discuss@restlet.tigris.org > *Sent:* Wednesday, February 11, 2009 4:39:55 PM > *Subject:* Re: [restlet] request.getEntity().getText() sets the > InputStream to null > > Hi John, > > I never tried this, so I'm not sure it works, but just to throw an > idea out... > > If you must look at the entity body in the Guard, could you try > putting the entity into a new representation and using > request.setEntity() to put it back on the Request once you were done? > I'm assuming that this is text data, so maybe a DOMRepresentation or a > StringRepresentation would do? (This probably would cause your Guard > to have to know everything about type negotiation that your resources > would - so, maybe not a good idea.) > > On Wed, Feb 11, 2009 at 4:33 PM, Stephan Koops <stephan.ko...@web.de > <mailto:stephan.ko...@web.de>> wrote: > > Hi John, > > if you want to create the entity as String, you have to read the > String. > But if it is read, the data is read ... and no available in the Stream > anymore. > > best regards > Stephan > > John Prystash schrieb: > > Hey Everyone, I encountered this behavior and was wondering if it is > > intentional. I'm sure it is, but if so I was wondering about the > > reasoning behind it. > > > > In my Guard override, during authorize() I need to inspect the > body of > > the request: > > > > @Override > > public boolean authorize(Request request) { > > ... > > String text= request.getEntity().getText(); > > ... > > } > > > > > > When I get the Resource method, the body is null: > > > > @Override > > public void post(Representation entity) { > > ... > > String text = entity.getText(); // is null > > ... > > } > > > > From InputRepresentation: > > > > @Override > > public InputStream getStream() throws IOException { > > final InputStream result = this.stream; > > setStream(null); > > return result; > > } > > > > @Override > > public String getText() throws IOException { > > return ByteUtils.toString(getStream(), getCharacterSet()); > > } > > > > I was wondering if the setStream(null) is intended behavior (or > if I'm > > abusing the purpose of the Guard) and if so, some background for my > > education would be much appreciated. Thanks! > > > > ------------------------------------------------------ > > http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=1140979 > > <http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=1140979> > > > ------------------------------------------------------ http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=1146031
