http - How to read from CompositeChannelBuffer? -


during testing, loading jpg image browser netty based littleproxy sitting between server , client. while loading particular image. channel buffer of compositchannelbuffer. reading following way, not working. 

if (chanbuff instanceof compositechannelbuffer) {      compositechannelbuffer compchanbuf = ((compositechannelbuffer) chanbuff);      int noofcomps = compchanbuf.numcomponents();     list<channelbuffer> bufflist = compchanbuf.decompose(0, noofcomps);      listiterator<channelbuffer> itr = bufflist.listiterator();     int offset = 0;     int bytesread = -1;      while (itr.hasnext()) {         channelbuffer buf = (channelbuffer) itr.next();         bytesread = buf.array().length;         outputstream.write(buf.array(), offset, bytesread);         offset += bytesread;     } }

i tried below code, not able write file. 

if (chanbuff instanceof compositechannelbuffer){      fileoutputstream outputstream = new fileoutputstream(outputfilename);      compositechannelbuffer compchanbuf = ((compositechannelbuffer) chanbuff);     int noofcomps = compchanbuf.numcomponents();      compchanbuf.getbytes(0, outputstream, noofcomps);      channelbuffer dynamicbuf = dynamicbuffer();     compchanbuf.getbytes(0, dynamicbuf);     array = dynamicbuf.array();      outputstream.write(array); }

what correct way read compositchannelbuffer?

just other buffers like:

channelbuffer buf = ... outputstream out = ... buf.getbytes(0, out, buf.readablebytes());

Comments

Post a Comment

Popular posts from this blog

python - How to create a legend for 3D bar in matplotlib? -

Image
given ax = plt.subplot() : ax.bar()[0] can passed plt.legend() . however, ax.bar3d() returns none . how create legend displayed bars? update: passing legend="stuff" ax.bar3d() , calling ax.legend() raises /usr/lib/python2.6/site-packages/matplotlib/axes.py:4368: userwarning: no labeled objects found. use label='...' kwarg on individual plots. warnings.warn("no labeled objects found. " you need use proxy artist legends not supported. this code: from mpl_toolkits.mplot3d import axes3d import matplotlib.pyplot plt import numpy np fig = plt.figure() ax = fig.add_subplot(111, projection='3d') x, y = np.random.rand(2, 100) * 4 hist, xedges, yedges = np.histogram2d(x, y, bins=4) elements = (len(xedges) - 1) * (len(yedges) - 1) xpos, ypos = np.meshgrid(xedges[:-1]+0.25, yedges[:-1]+0.25) xpos = xpos.flatten() ypos = ypos.flatten() zpos = np.zeros(elements) dx = 0.5 * np.ones_like(zpos) dy = dx.copy() dz = hist.flatten() ax...
Read more

java - Multi-Label Document Classification -

i have database in store data based upon following 3 fields: id, text, {labels}. note each text has been assigned more 1 label \ tag \ class. want build model (weka \ rapidminer \ mahout) able recommend \ classify bunch of labels \ tags \ classes given text. i have heard svm , naive bayes classifier, not sure whether support multi-label classification or not. guides me right direction more welcome! the basic multilabel classification method one-vs.-the-rest (ovr), called binary relevance (br). basic idea take off-the-shelf binary classifier, such naive bayes or svm, create k instances of solve k independent classification problems. in python-like pseudocode: for each class k: learner = svm(settings) # example labels = [class_of(x) == k x in samples] learner.learn(samples, labels) then @ prediction time, run each of binary classifiers on sample , collect labels predict positive. (both training , prediction can done in parallel, since problems assumed ...
Read more

php - Dynamic url re-writing using htaccess -

how can rewrite http://mydomain.com/test/master.php?catid=2&subcatid=8 http://mydomain.com/test/master.php/catname/subcat using .htaccess file. once rewritten, how can access these parameters in master.php? note: untested, let me know if doesn't work. rewriterule ^master.php/([a-za-z0-9_-]+)/([a-za-z0-9_-]+)$ /master.php?catid$1&subcatid=$2 [l]
Read more