Heloo All,
I am automating the product developed using Robotium. Am able to cope with many of the modules. Only thing is I need to hardcode the validations like:
If userName is "xyz" then password has to be "12345". On hardcoding,the values as in-
solo.enterText(0,"xyz");
solo.enterText(1,"12345");
This works fine. But I just want to know if there is any way in which we can query the database being used, get the values from there and make the solo class validate the tests.
Any solution and Example for the problem will be highly appreciated.
Follow the below steps to achieve this,
Step: 1. Read the values from database and store it in a XML.
Class.forName(sun.jdbc.odbc.JdbcOdbcDriver).newInstance();
Connection con = DriverManager.getConnection(jdbc:odbc:myData, “”, “”);
Statement stmt = con.createStatement();
String query = “Select UserName, Password from Customers”;
ResultSet rs = stmt.executeQuery(query);
StringBuffer xml = “<?xml version=‘1.0’?><myDatabase><customers>”;
while (rs.next()) {
xml.append(“<custRec><custUserName>”);
xml.append(rs.getString(“UserName”));
xml.append(“</custName><cusPassword>”);
xml.append(rs.getInt(“Password”));
xml.append(“</custPassword></custRec>”);
}
xml.append(“</customers></myDatabase>”);
Step: 2. Read the values from XML file and use it in the Solo class.
.
StringReader stringReader = new StringReader(xmlString);
InputSource inputSource = new InputSource(stringReader);
DOMParser domParser = new DOMParser();
domParser.parse(inputSource);
Document document = domParser.getDocument();
NodeList userNameList = doc.getElementsByTagName(“custUserName”);
NodeList passwordList = doc.getElementsByTagName(“custPassword”);
Related
I have a query
SELECT instance_guid FROM service_instances WHERE service_template_guid='E578F99360A86E4EE043C28DE50A1D84' AND service_family_name='TEST'
Directly executing this returns me
4FEFDE7671A760A8DC8FC63CFBFC8316
F2F9DF641D8E2CACC03175A7A628D51D
Now I am trying same code from JDBC.
PreparedStatement ps = null;
ResultSet rs = null;
try {
conn = executionContext.getConnection();
if (conn != null) {
ps = (PreparedStatement)conn.prepareStatement(query);
if (params == null) params = new Object[0];
for (int i=0;i<params.length;i++) {
if (params[i] instanceof Integer) {
ps.setInt(i+1, ((Integer)params[i]).intValue());
} else if (params[i] instanceof java.util.Date) {
((PreparedStatement)ps).setDATE(i+1, new oracle.sql.DATE((new java.sql.Timestamp(((Date)params[i]).getTime()))));
//ps.setObject(i+1, new oracle.sql.DATE(new Time(((Date)params[i]).getTime())));
} else {
if (params[i] == null) params[i] = "";
ps.setString(i+1, params[i].toString());
}
}
rs = ps.executeQuery();
I see params[0] =E578F99360A86E4EE043C28DE50A1D84 and params[1]=TEST
But the resultSet is empty and not getting the result.I debugged but not much help?
Can you please let me know Am i trying right?
In java its defined as below
final static private String INSTANCE_GUID_BY_TEMPLATE_GUID =
"SELECT instance_guid FROM service_instances WHERE service_template_guid=? AND service_family_name=? "
SERVICE_FAMILY_NAME NOT NULL VARCHAR2(256)
SERVICE_TEMPLATE_GUID NOT NULL RAW(16 BYTE)
First and foremost this breaks every sql mapping pattern I have ever seen.
String sql = "SELECT instance_guid FROM service_instances WHERE service_template_guid=? AND service_family_name=?";
PreparedStatement ps = null;
ResultSet rs = null;
try {
conn = executionContext.getConnection();
ps = conn.prepareStatement(sql);
ps.setString(1,guid);
ps.setString(2,family);
rs = ps.executeQuery();
while(rs.next(){...}
...
}
You should not be dynamically figuring out the data types as they come in, unless you are trying to write some code to port from database X to database Y.
UPDATE
I see you are using RAW as a datatype, from this post:
As described in the Oracle JDBC Developer's guide and reference 11g,
when using a RAW column, you can treat it as a BINARY or VARBINARY
JDBC type, which means you can use the JDBC standard methods
getBytes() and setBytes() which returns or accepts a byte[]. The other
options is to use the Oracle driver specific extensions getRAW() and
setRAW() which return or accept a oracle.sql.RAW. Using these two will
require you to unwrap and/or cast to the specific Oracle
implementation class.
Further from a code readability standpoint, your solution makes it painful for a new developer to take over. Far too often I see people making sql be "dynamic" when in reality 99% of the time you don't need this level of dynamic query building. It sounds good in most people's heads but it just causes pain and suffering in the SDLC.
There is a problem. I have old database with some data, and by another side I have new database with new structure.
Now I need best way (ideas) how to copy data from one table to the another. Problem is some tables have max 1000 records some 32 000 some 640 000, and time to copy 5000+ is really long.
Any best practices ? Sample code below ...
public ActionResult ImportTable1()
{
var oldTable1 = context.OLDTABLE.ToList();
foreach (var item in oldTable1)
{
try
{
var cTable = contextNew.NEWTABLE.Where(p => p.fiel1 == item.field1).FirstOrDefault();
if (cTable == null)
{
NEWTABLE nTable = new NEWTABLE
{
field1 = item.field1,
field2 = item.field2
};
contextNew.NEWTABLE.Add(nTable);
}
else
{
cTable.field1 = item.field1
cTable.field2 = item.field2;
contextNew.Entry(cTable).State = EntityState.Modified;
}
IcontextNew.SaveChanges();
}
catch (DbEntityValidationException dbEx)
{
foreach (var validationErrors in dbEx.EntityValidationErrors)
{
foreach (var validationError in validationErrors.ValidationErrors)
{
_progresLog = ("Property: " + validationError.PropertyName + " Error: {1}" + validationError.ErrorMessage);
}
}
}
return PartialView();
}
... so bulk now
public void ExperimentalPartsBulk()
{
string msisDatabase = ConfigurationManager.ConnectionStrings["old"].ToString();
string newDatabase = ConfigurationManager.ConnectionStrings["new"].ToString();
SqlConnection sourceconnection = new SqlConnection(msisDatabase);
SqlConnection sourcedestination = new SqlConnection(newDatabase);
sourceconnection.Open();
SqlCommand cmd = new SqlCommand("Select * from ELEMENTS");
cmd.Connection = sourceconnection;
SqlDataReader reader = cmd.ExecuteReader();
//Connect to Destination DataBase
SqlConnection destinationConnection = new SqlConnection(newDatabase);
destinationConnection.Open();
SqlBulkCopy bulkCopy = new SqlBulkCopy(destinationConnection);
bulkCopy.DestinationTableName = "ELEMENTSNEW";
bulkCopy.ColumnMappings.Clear();
bulkCopy.ColumnMappings.Add("fielString1", "newString1");
bulkCopy.ColumnMappings.Add("fielString2", "newStrin2");
bulkCopy.ColumnMappings.Add("fielFloat1", "newINT1");
bulkCopy.WriteToServer(reader);
reader.Close();
sourceconnection.Close();
sourcedestination.Close();
}
problem now is w differences betwen two tables
fielString1 can be null, newString1 cant be |
fielFloat1 is float now is nullable but newINT1 not
How to import with some conditions or to the different types of field ?
Siwek,
Any loop as shown in the first code sample will failed due to performance issues.... as you pointed!
The right approach here is SQL approach. The idea is to "flush" all data to new DB. Flush mean that ALL records (5,000 or 500,000) are stored to new DB with one action! And avoid any loops during extracting, filtering, editing and saving of data, because 640,000 loops takes long time....
Bulk copy is one possible. Issue with bulk copy is that it's hard for you to filter and edit data in this object.
Use ADO.net DataSet to get data from old DB, filter it, edit it, and save it on memory and flush it to new DB. DataSet take one step per action (extracting, filtering, editing, etc. ! no loops).
Or, try SQL replication. Replication is the SQL mechanism to copy data from DB "A" table "oneTable" to another DB, "B" with a table "AnotherTable" with a different schema and rules. Try it. I can specify more if you think it's a reasonable solution for you. No code needed, it's can be created using wizard on SQL Management studio, and run whenever needed (via SQL Job agent).
You should seriously consider SSIS or bcp. Otherwise you are looking at a scenario whet you're pulling data from the source server all the way down to the client box where the .net code is executing, then pushing all off that data up to the destination server. Think of the bandwidth being consumed. If you can instead do an SSIS export into the destination, at least it would be eliminating an extra layer of concern.
If you absolutely must pull data down to the client, consider writing the data into bcp formatted files, and then bulkcopying them into the destination server.
I'm pretty sure that you'll find that both of these paths are significantly faster than using plain old ADO.NET sort of approaches.
I'm a big fan of using named parameters instead of string-based parameter injection. It's type-safe and safe against most forms of SQL injection. In old ADO.NET, I would create a SqlCommand object and a bunch of SqlParameters for my query.
var sSQL = "select * from Users where Name = #Name";
var cmd = new SqlCommand(conn, sSQL);
cmd.Parameters.AddWithValue("#Name", "Bob");
cmd.ExecuteReader();
Now, in Entity Framework, it appears (on this link) to have regressed to a simple String.Format statement and string injection again: (simplified for discussion)
MyRepository.Users.SqlQuery("Select * from Users where Name = {0}", "Bob");
Is there a way to use named parameters with the Entity Framework DbSqlQuery class?
var param = new ObjectParameter(":p0", "Bob");
MyRepository.Users.SqlQuery("Select * from Users where Name = :p0", param);
Since I can't comment, I'm fixing the other answer:
var param = new ObjectParameter("p0", "Bob");
MyRepository.Users.SqlQuery("Select * from Users where Name = :p0", param);
You don't have to put a colon on the name when instantiating an ObjectParameter. That's why SLC got the error he mentioned in his comment.
I am wondering how to insert an image on one of the fields in my postgresql table. I cannot find an appropriate tutorial re this matter. The dataype of the field is oid. Has anyone tried this? Thanks!
// All LargeObject API calls must be within a transaction
conn.setAutoCommit(false);
// Get the Large Object Manager to perform operations with
LargeObjectManager lobj = ((org.postgresql.PGConnection)conn).getLargeObjectAPI();
//create a new large object
int oid = lobj.create(LargeObjectManager.READ | LargeObjectManager.WRITE);
//open the large object for write
LargeObject obj = lobj.open(oid, LargeObjectManager.WRITE);
// Now open the file
File file = new File("myimage.gif");
FileInputStream fis = new FileInputStream(file);
// copy the data from the file to the large object
byte buf[] = new byte[2048];
int s, tl = 0;
while ((s = fis.read(buf, 0, 2048)) > 0)
{
obj.write(buf, 0, s);
tl += s;
}
// Close the large object
obj.close();
//Now insert the row into imagesLO
PreparedStatement ps = conn.prepareStatement("INSERT INTO imagesLO VALUES (?, ?)");
ps.setString(1, file.getName());
ps.setInt(2, oid);
ps.executeUpdate();
ps.close();
fis.close();
Found that sample code from here. Really very good bunch of sql operations.
To quote this site,
PostgreSQL database has a special data type to store binary data
called bytea. This is a non-standard data type. The standard data type
in databases is BLOB.
You need to write a client to read the image file, for example
File img = new File("woman.jpg");
fin = new FileInputStream(img);
con = DriverManager.getConnection(url, user, password);
pst = con.prepareStatement("INSERT INTO images(data) VALUES(?)");
pst.setBinaryStream(1, fin, (int) img.length());
pst.executeUpdate();
You can either use the bytea type or the large objects facility. However note that depending on your use case it might not be a good idea to put your images in the DB because of additional load it may put on the DB server.
Rereading your question I notice you mentioned you have a field of type oid. If this is an application you are modifying it suggests to me it is using large objects. These objects get an oid which you then need to store in another table to keep track of them.
This question is related to another one I posted earlier.
To recap, I need to fix an issue with an ancient legacy app where people messed up data storage by re-installing the software the wrong way.
The application stores data by saving a record in an SQL DB. Each record holds a reference to a file on disk of which the filename auto-increments.
By re-installing the app the filename auto-increment was re-set so the DB now holds multiple unrelated records which reference the same filename and I have to directories with files which I obviously cannot merge because of these identical filenames. The files hold no reference to the DB data so the only course of action that remains is to filter the DB records on date created and try to rename "EXED" to "IXED" or something like that.
The DB is relatively simple with one table containing a column that holds data of type "Image".
An example content of this image data is as follows:
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
The data is apparently Hex which mostly encodes meaningless crap but also holds the name of physical files (towards the end of the data field) in the filesystem that is linked to the SQL records:
??#7???????????EXED48bb?-P??????Dyspnoe??P??????VELD RAMP 360
I'm interested in the EXED part.
There is no clear regularity in the offset at which the filename appears and the filename is of variable length (so I do not know beforehand how long the substring will be).
I can call up all records with SQL like this:
SELECT COUNT(*) as "Number of EXED Files after critical date"
FROM [ZAN].[dbo].[zanu]
WHERE udata is not null
and SUBSTRING(udata, 1 , 2147483647) like '%EXED%'
and [udatum] > 0
and CONVERT(date,[udatum]) > CONVERT(date,'20100629')
What I would like to do now is know how to replace this EXED substring by something else (e.g. IXID).
I'm unfamiliar with SQL and Googling so far has yielded very little information on my options here.
I also have no other info on the original code that generated this data/the data format/encoding/whatever...
It's a mess really.
Any help is welcome!
An update on this:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Data.Linq;
using System.Text;
using System.Data.SqlClient;
using System.Threading;
namespace ZANLinq
{
class Program
{
static void Main(string[] args)
{
try
{
DataContext zanDB = new DataContext(#"Data Source=.\,1433;database=ZAN;Integrated Security=true");
string strSQL = #"SELECT
Idnr,
Udatum,
Uzeit,
Unr,
Uart,
Ubediener,
Uzugriff,
Ugr,
Uflags,
Usize,
Udata
FROM Zanu
WHERE (Udata IS NOT null and SubString(Udata, 1 , 2147483647) LIKE '%EXED%')
AND (Idnr = ' 2')";
var zanQuery = zanDB.ExecuteQuery<Zanu>(strSQL);
List<Zanu> list = zanQuery.ToList<Zanu>();
foreach (Zanu zanTofix in list)
{
string strOriginal = ASCIIEncoding.ASCII.GetString(zanTofix.Udata);
string strFixed = strOriginal.Replace("EXED", "IXED");
zanTofix.Udata = ASCIIEncoding.ASCII.GetBytes(strFixed);
}
zanDB.SubmitChanges();
//Console.WriteLine(zanResults.Count<Zanu>().ToString());
}
catch (SqlException e)
{
Console.WriteLine(e.Message);
}
}
}
}
It finds the records I'm interested in, I can easily manipulate the data but the commit doesnt work. I'm stumped, there are no exceptions, no indication the code is wrong.
Anybody have ideas?
UPDATE:
I think the above does not work because my table appears to have a composite PK (I cannot change this):
Since I could not debug this (no info anywhere, no exceptions, just a silent fail of the submitchanges()) I decided to use another approach and abandon Linq2SQL altogether:
try
{
SqlConnection thisConnection = new SqlConnection(#"Network Library=DBMSSOCN;Data Source=.\,1433;database=ZAN;Integrated Security=SSPI");
DataSet zanDataSet = new DataSet();
SqlDataAdapter zanDa;
SqlCommandBuilder zanCmdBuilder;
thisConnection.Open();
//Initialize the SqlDataAdapter object by specifying a Select command
//that retrieves data from the sample table.
zanDa = new SqlDataAdapter(#"SELECT
Idnr,
Udatum,
Uzeit,
Unr,
Uart,
Ubediener,
Uzugriff,
Ugr,
Uflags,
Usize,
Udata
FROM Zanu
WHERE (Udata IS NOT null and SubString(Udata, 1 , 2147483647) LIKE '%IXED%')
AND (Idnr = ' 2')
AND (Uzeit = '13:21')", thisConnection);
//Initialize the SqlCommandBuilder object to automatically generate and initialize
//the UpdateCommand, InsertCommand, and DeleteCommand properties of the SqlDataAdapter.
zanCmdBuilder = new SqlCommandBuilder(zanDa);
//Populate the DataSet by running the Fill method of the SqlDataAdapter.
zanDa.Fill(zanDataSet, "Zanu");
Console.WriteLine("Records that will be affected: " + zanDataSet.Tables["Zanu"].Rows.Count.ToString());
foreach (DataRow record in zanDataSet.Tables["Zanu"].Rows)
{
string strOriginal = ASCIIEncoding.ASCII.GetString((byte[])record["Udata"]);
string strFixed = strOriginal.Replace("IXED", "EXED");
record["Udata"] = ASCIIEncoding.ASCII.GetBytes(strFixed);
//string strPostMod = ASCIIEncoding.ASCII.GetString((byte[])record["Udata"]);
}
zanDa.Update(zanDataSet, "Zanu");
thisConnection.Close();
Console.ReadLine();
}
catch (SqlException e)
{
Console.WriteLine(e.Message);
}
This seems to work but any input on why the Linq does not work and whether or not my second solution is efficient/optimal or not is still very much appreciated.