java - Google Contact API (No Authentication Header Information Error) -


i new google contact api. trying retrieve contacts using google contact api. used oauth authentication , google contact api.

import java.io.ioexception; import java.net.malformedurlexception; import java.net.url;  import com.google.gdata.client.query; import com.google.gdata.client.authn.oauth.googleoauthparameters; import com.google.gdata.client.authn.oauth.oauthhmacsha1signer; import com.google.gdata.client.authn.oauth.oauthparameters.oauthtype; import com.google.gdata.client.contacts.contactsservice; import com.google.gdata.data.link; import com.google.gdata.data.contacts.contactentry; import com.google.gdata.data.contacts.contactfeed; import com.google.gdata.data.contacts.groupmembershipinfo; import com.google.gdata.data.extensions.email; import com.google.gdata.data.extensions.extendedproperty; import com.google.gdata.data.extensions.im; import com.google.gdata.data.extensions.name; import com.google.gdata.util.serviceexception;  public class googlecontactsaccess{     /*  method authenticate user credentials passed ,      returns instance of contactservice class.*/   public contactsservice authenticateid(){      googleoauthparameters oauthparameters = null;     contactsservice contactservice = null;      try{         contactservice = new contactsservice("api project");         oauthparameters = new googleoauthparameters();         oauthparameters.setoauthconsumerkey("consumerkey");         oauthparameters.setoauthconsumersecret("consumerkey");         oauthparameters.setscope("https://www.google.com/m8/feeds");         oauthparameters.setoauthtype(oauthtype.two_legged_oauth);         oauthparameters.addcustombaseparameter("xoauth_requestor_id", "my id@gmail.com");         contactservice.setoauthcredentials(oauthparameters,new oauthhmacsha1signer());         contactservice.getrequestfactory().setheader("gdata-version", "3.0");     }catch(exception e){         e.printstacktrace();     }     return contactservice;  }  /* method print details of contacts available in particular google account. */   public void printallcontacts(contactsservice myservice)throws serviceexception, ioexception {      // request feed     url feedurl = new url("https://www.google.com/m8/feeds/contacts/default/full?v=3.0&alt=json'");   // query retrieve contacts     query myquery = new query(feedurl);      contactfeed resultfeed = myservice.getfeed(myquery, contactfeed.class);      // print results     system.out.println(resultfeed.gettitle().getplaintext());     (int = 0; < resultfeed.getentries().size(); i++) {         contactentry entry = resultfeed.getentries().get(i);         if (entry.hasname()) {             name name = entry.getname();             if (name.hasfullname()) {                 string fullnametodisplay = name.getfullname().getvalue();                 if (name.getfullname().hasyomi()) {                     fullnametodisplay += " (" + name.getfullname().getyomi() + ")";                 }                 system.out.println("\t\t" + fullnametodisplay);             } else {                 system.out.println("\t\t (no full name found)");             }              if (name.hasnameprefix()) {                 system.out.println("\t\t" + name.getnameprefix().getvalue());             } else {                 system.out.println("\t\t (no name prefix found)");             }             if (name.hasgivenname()) {                 string givennametodisplay = name.getgivenname().getvalue();                 if (name.getgivenname().hasyomi()) {                     givennametodisplay += " (" + name.getgivenname().getyomi() + ")";                 }                 system.out.println("\t\t" + givennametodisplay);             } else {                 system.out.println("\t\t (no given name found)");             }              if (name.hasadditionalname()) {                 string additionalnametodisplay = name.getadditionalname().getvalue();                 if (name.getadditionalname().hasyomi()) {                     additionalnametodisplay += " (" + name.getadditionalname().getyomi() + ")";                 }                 system.out.println("\t\t" + additionalnametodisplay);             } else {                 system.out.println("\t\t (no additional name found)");             }              if (name.hasfamilyname()) {                 string familynametodisplay = name.getfamilyname().getvalue();                 if (name.getfamilyname().hasyomi()) {                     familynametodisplay += " (" + name.getfamilyname().getyomi() + ")";                 }                 system.out.println("\t\t" + familynametodisplay);             } else {                 system.out.println("\t\t (no family name found)");             }              if (name.hasnamesuffix()) {                 system.out.println("\t\t" + name.getnamesuffix().getvalue());             } else {                 system.out.println("\t\t (no name suffix found)");             }          } else {             system.out.println("\t (no name found)");         }          system.out.println("email addresses:");          (email email : entry.getemailaddresses()) {              system.out.print(" " + email.getaddress());             if (email.getrel() != null) {                 system.out.print(" rel:" + email.getrel());             }             if (email.getlabel() != null) {                 system.out.print(" label:" + email.getlabel());             }             if (email.getprimary()) {                 system.out.print(" (primary) ");             }             system.out.print("\n");          }          system.out.println("im addresses:");         (im im : entry.getimaddresses()) {              system.out.print(" " + im.getaddress());             if (im.getlabel() != null) {                 system.out.print(" label:" + im.getlabel());             }             if (im.getrel() != null) {                 system.out.print(" rel:" + im.getrel());             }             if (im.getprotocol() != null) {                 system.out.print(" protocol:" + im.getprotocol());             }             if (im.getprimary()) {                 system.out.print(" (primary) ");             }             system.out.print("\n");          }          system.out.println("groups:");         (groupmembershipinfo group : entry.getgroupmembershipinfos()) {             string grouphref = group.gethref();             system.out.println("  id: " + grouphref);         }          system.out.println("extended properties:");         (extendedproperty property : entry.getextendedproperties()) {              if (property.getvalue() != null) {                 system.out.println("  " + property.getname() + "(value) = " +                         property.getvalue());             } else if (property.getxmlblob() != null) {                 system.out.println("  " + property.getname() + "(xmlblob)= " +                         property.getxmlblob().getblob());             }          }          link photolink = entry.getcontactphotolink();         string photolinkhref = photolink.gethref();         system.out.println("photo link: " + photolinkhref);          if (photolink.getetag() != null) {             system.out.println("contact photo's etag: " + photolink.getetag());         }          system.out.println("contact's etag: " + entry.getetag());     } }  public static void main(string args[]){     try {         googlecontactsaccess googlecontactsaccess = new googlecontactsaccess();          contactsservice contactsrv = googlecontactsaccess.authenticateid();          googlecontactsaccess.printallcontacts(contactsrv);      } catch (malformedurlexception ex) {         ex.printstacktrace();     } catch (ioexception ex) {         ex.printstacktrace();     }catch (exception ex) {         ex.printstacktrace();     } }  }

i tried above code. getting below exception

java.lang.nullpointerexception: no authentication header information @ com.google.gdata.util.authenticationexception.initfromauthheader(authenticationexception.java:96) @ com.google.gdata.util.authenticationexception.(authenticationexception.java:67) @ com.google.gdata.client.http.httpgdatarequest.handleerrorresponse(httpgdatarequest.java:608) @ com.google.gdata.client.http.googlegdatarequest.handleerrorresponse(googlegdatarequest.java:564) @ com.google.gdata.client.http.httpgdatarequest.checkresponse(httpgdatarequest.java:560) @ com.google.gdata.client.http.httpgdatarequest.execute(httpgdatarequest.java:538) @ com.google.gdata.client.http.googlegdatarequest.execute(googlegdatarequest.java:536) @ com.google.gdata.client.service.getfeed(service.java:1135) @ com.google.gdata.client.service.getfeed(service.java:1077) @ com.google.gdata.client.googleservice.getfeed(googleservice.java:676) @ com.google.gdata.client.service.getfeed(service.java:1034) @ com.cohere.getcontacts.googlecontactsaccess.printallcontacts(googlecontactsaccess.java:59) @ com.cohere.getcontacts.googlecontactsaccess.main(googlecontactsaccess.java:197)

so 1 me resolve problem in advance

it looks using consumerkey both key , secret in code :

oauthparameters.setoauthconsumerkey("consumerkey"); oauthparameters.setoauthconsumersecret("consumerkey");

you need use correct consumersecret of app


Comments

Post a Comment

Popular posts from this blog

searchKeyword not working in AngularJS filter -

i writing app using angularjs on front end. want search through table word/field; 1 search box everything. according article here: http://hello-angularjs.appspot.com/searchtable can use filter: searchkeyword this. this code, , not working expected. <label>search: <input ng-model="searchkeyword"></label> <table ng-repeat="post in posts | orderby: sort | filter: searchkeyword"> <tr> <td> {{index(post)}} </td> <td> {{post.title}} </td> <td> {{post.author}} </td> <td> {{post.content}} </td> <td> {{post.date | date: "d/m/yyyy"}} </td> </tr> </table> what should do? thank you try this: controller $scope.posts = [ {title:'title one', author:'author one', content: 'content one'}, {title:'title two', author:'author two', content: 'cont...
Read more

sequelize.js - Sequelize: sort by enum cases -

i have model ( article ) field (the name type ) of type enum('source', 'translated') , return 1 article ordered type field. source articles should returned before translated articles. like: article.findone(order: [ { type: [ 'source', 'translated' ] } ]); unfortunately there appears no built-in solution sorting enums. instead have sort by case , couldn't find documentation on how sequelize. what conventional approach here? sorting case hard in sequelize, sort field (the second answer in linked post) should possible: order: sequelize.fn('field', sequelize.col('type'), 'source', 'translated') it's supported mysql far know though
Read more

user interface - how to replace an ongoing process of image capture from another process call over the same ImageLabel in python's GUI TKinter -

i trying use following code create interactive gui changes color-space(hsv, rbg, grayscale etc) on event of button click. display opencv video in tkinter using multiprocessing being new python having problems multiprocessing , attempts on making gui change it's color space on button clicks hangs entire system. on it's implementation highly appreciated. thankyou. below code: import cv2 pil import image,imagetk import tkinter tk import numpy np multiprocessing import process , queue def quit_it(root,process): root.destroy() process.terminate() def black_andwhite(root,process): process.terminate p=process(target=capture_image, args=(5,queue, )) p.start() root.after(0, func=lambda: update_all(root, image_label, queue)) def update_image(image_label, queue): frame = queue.get() = image.fromarray(frame) b = imagetk.photoimage(image=a) image_label.configure(image=b) image_label._image_cache = b root.update() def update_all(root...
Read more