Call Web Service / Deserialize And Store In Collection
May 16, 2013
I am basically a Dot net developer. now im working on one Android project. my requirement is,
1. I have to call a web service, that will return XML data as String.
2. I have to read that XML string data.
3. Store those xml data into class collection(Collection is C# word, i dont know how here calling)
#1 i have done, #2 & #3 is pending. I knew reading xml is using SAX parser but, i dont know how to read from String using SAX.? Then how to store those XML data into a collection object.?
i tried with this link [URL] .... but, its confusing bcos, I am writing code Activity class but, there explaing with some Void Main class.
I am trying to understand the effect of calling real business logic from the test class. If I have a test class that call the service method which make update to DB. Is DB really changes through test class?
e.g.
Java Code: @Test public void testUpdate() { MyDto myDto = new MyDto(paramters to create new myDto object); //creating new dto object myService.updateMyData(myDto); //passing new dto object for update (DB record really changed??) MyDto testDto = myRepo.find(myDto.getKey()); //get record for the corresponding key assert testDto.getSomeProp() == myDto.getSomeProp(); //what testDto.getSomeProp() return? new value send on myDto or old value from DB? } mh_sh_highlight_all('java');
My code's objective is to serialize and deserialize to a file. I'm in the process of revising the code to allow multiple serializations and deserializations, but for now the code's limited to one serialization and deserialization. I'm also debugging one error, before I debug several others. I've limited my debugging question by accessing the field of one deserialization.
This is the code on pastie: [Code] ....
How to display the code on coderanch? I don't understand how to use the code widget.
I can successfully serialize an object, but I cannot deserialize it and access its fields. If you execute the program, create a new file, add ONE FullTimeEmployee object to the file and then read its firstName field, you'll be returned null.
I'm certain I initialized the field by using a constructor. I'm also pretty sure that I correctly casted Object (if I'm not mistaken,the generic type for a deserialization) into FullTimeEmployee
So I am having trouble with trying to get the main method to work. The program is supposed to construct a BinaryTree, and deserialize a file that is used for the Tree.
I'm new to Web Services and I've been finding trouble when creating my first one. Before talking about the problem, I'd like to show you the process I followed to see if it's ok. Note that I'm using Eclipse Kepler, Tomcat 5.5 and Axis2.
1- I created a new Dynamic Web Project.
2- I created the Java class that implements the service with just one method, a simple one: you pass it a name and it returns "Hi, <name>"
3- Right click over that class and then: Web Services -> Create Web Service
4- I go through the next steps. On the last one, I select "Launch the Web Services Explorer to publish this Web service to a UDDI Registry". Click on "Finish".
5- The Web Services Explorer is launched, but I just get a "HTTP ERROR: 500" message.
I understand that my Web Service wasn't published and therefore it's useless to create a client as it wouldn't connect.
I have small project to be implemented in Java, which, expected the management of a parking.
The project has a class abstract Vehicle, whence derive three classes: Car, Motorcycle, Heavy Vehicles; the cost estimated time for the 3 types of vehicles are: 2€ for Cars, 1€ for Motorcycle and 5€ for H.V.
In addition, in class Ticket will be stored the arrival time of the customer and the characteristics of his vehicle.
Finally, in the class Parking(which provides 80 places available), here it should be added the various types of vehicles.
Now, I though of using an Collection, as Set.. So that they can not, two Vheicle with same license plate.
I have a server with a handful of php services. I communicate with these services by creating connections from java code. The services currently respond with XML, but that can be changed if an alternative way can improve performance.
One of the things I need to do is send varying sized payload (some large) to one of the services. My current plan is to create an xml file in java and perform a POST request with the XML as the payload. I am using an XML because the data is very structured.
From a performance point of view, would it be better to send the XML as a file or just as text? Also, is there a better way to send this data? These services will eventually be used by an android app, where performance and minimizing the size of the data packages will be extremely important.
I am using mysql database and I have downloaded the library also I have managed to get the database connection and query working. I need to know if I need to create separate classes to add/remove/edit items and view items? Do I need to put my database connection script in every class that I create or should I create methods for both the connection and the queries that will be called in the additional classes or methods that I have?
Below is what I have written so far and it is working, I will change the database and query soon to reflect the task I need to do because I have followed a tutorial.
Java Code:
/** * cdCollection.java */ package org.com.mm00422_prototype; //Import for the SQL package import java.sql.*;
//Registering the JDBC driver //Class.forName("com.mysql.jdbc.Driver");
I have a method that accepts JSONArray as parameter and returns the values of it as ArrayList Object. My question which of these ways is appropriate in populating the ArrayList object this method populates the arraylist upon creation of object (I don't know what the right term to use, but as netbeans IDE suggest, JSONArray object should be final since it was used in inner class.).
private List<String> getStringList(final JSONArray jsonArr) { return new ArrayList<String>() { { try { for (int i = 0; i < jsonArr.length(); i++) { add(jsonArr.getString(i)); } } catch (JSONException ex) { ex.printStackTrace(); } } }; }
this second method is the usual way of populating collection
private List<String> getStringList(JSONArray jsonArr) { List<String> strList = new ArrayList<String>(); try { for (int i = 0; i < jsonArr.length(); i++) { strList.add(jsonArr.getString(i)); } } catch (JSONException ex) { ex.printStackTrace(); } }
What are the advantages and disadvantages between the two? like which is faster? or which consumed larger memory?
I am new to web services and need to call a web service that has already been written. Below is the wsdl for the web service.I need to call the web service from my java program. provide the code to call the webservice?
import java.util.Scanner; import java.io.File; import java.io.FileNotFoundException; import java.io.PrintWriter; public class logBook { public static void main(String[] args) throws FileNotFoundException { File inputFile = new File("C:UsersNick TateDesktopLog.txt");
[Code] .....
So far this is the code I have. It will successfully read the contents of the file(which are below in quotations) and write them to the designated file. My issue is totaling the corresponding costs to their services and then writing that to the file. The if and else if clauses above do not work but how is it that I can get them working?
"John; 67.00; Dinner ; Aug 12 2013; Bob; 200.00; Conference; Sep 11 2013; Clara; 450.00; Lodging; Oct 25 2013; Jamie; 450.00; Lodging; Oct 28 2013; Rachel; 67.00; Dinner; Nov 11 2013; Richard; 200.00; Conference; Dec 17 2013; Nick; 67.00; Dinner; Jan 05 2014;"
I have a web service which is returning a string. I want to extend this web service so that it returns an xml based string. To begin with I am able to return xml based strings from a normal POJO class ....
I need to write a simple client to access a WS. Things I can not do :
Modify the serverAdd external jars
The client will be part of a command line call and will run as a stand alone.
I've been searching all day and have found hundreds of vague, overly complex examples, mostly based on SOAPHandler (which tells me I need to install server components which I cannot do). I grasp the general requirements but am having difficulty figuring out how to add the security elements to the header.
What do I need to do to add the username and password tokens to the header?
The last line seems half cut. Does that indicate that there is memory leak in my application? I have not seen the app throwing the out of memory error.
I need to create an algorithm that finds the common element(s) in all arrays that has a signature of public Comparable[] findCommonElements(Object[] collection) that has an efficiency of at most O(knlogn), uses a query array, and accepts as input a collection of arrays. I am aware my time would be better spent learning how to use array lists and hash sets, but I am supposed to use concepts already covered, and these have not been.
I feel like this code should work, but it is returning null for the array of common elements. Which means it obviously is not working correctly. I am also likely going to need implementing the sort algorithm, but I wanted to get the part of finding the common elements set first.
public class CommonElements2<T extends Comparable<T>> { Comparable[] tempArr; Comparable[] common; Comparable[] queryArray; /* sort algorithm goes here */ public Comparable[] findCommonElements(Object[] collections)
Write a function (or functions) that given a collection of files will produce a sum of integers from each line of each file. Each file can have any number of lines from 1 to N. Each line can contain only one integer and no other alphanumeric characters. All of the numbers from all of the files should be added to the final result. The result is just one number.
17/03/2015 09:38:39 AM 17/03/2015 10:52:26 AM 10/03/2015 08:30:56 AM 02/03/2015 09:18:10 AM 02/03/2015 09:37:23 AM 02/03/2015 11:25:01 AM 02/03/2015 11:29:00 AM 02/03/2015 11:42:38 AM 02/03/2015 12:04:39 PM 02/03/2015 12:09:05 PM 02/03/2015 01:17:09 PM 02/03/2015 01:29:08 PM
I want them to sort them as per below result: (Same date one should be sort by timestamp)
17/03/2015 10:52:26 AM 17/03/2015 09:38:39 AM 10/03/2015 08:30:56 AM 02/03/2015 01:29:08 PM 02/03/2015 01:17:09 PM 02/03/2015 12:09:05 PM 02/03/2015 12:04:39 PM 02/03/2015 11:42:38 AM 02/03/2015 11:29:00 AM 02/03/2015 11:25:01 AM 02/03/2015 09:37:23 AM 02/03/2015 09:18:10 AM
I tried using Collection.sort using compareTo but result is not expected...
public class Person { private String name; private int age; public Person (String name, int age) { this.name = name; this.age = age;
[Code] .....
And I need to write a simple main method that creates lots of instances of the Person class and adds them to a generic instantiation of a Collection (ArrayList). And I need to make it so I as a programmer can define how many instances to create.
