I'm trying to create UnionClass of two classes using Jena framework.
I currently have the following code
RDFNode[] nodes1 = {apple, banana};
RDFList fruit_list= model.createList(nodes1);
UnionClass fruit_union= model.createUnionClass(NS + "Fruit_Union", fruist_list);
I got this code from somewhere on the internet as an example but somehow this does not generate the necessary code that I want.
How would I go about creating a union of two classes or resources then use it as a range for a ObjectProperty?
I am not sure about the result you expect. However please check the below solution.
public void unionClassObjectProperty(){
OntModel model = ModelFactory.createOntologyModel( OntModelSpec.OWL_MEM );
String NS = "http://example.com/q/123456/";
//creating a union of two classes
OntClass apple = model.createClass( NS+"apple" );
OntClass banana = model.createClass( NS+"banana" );
OntClass fruit_union = model.createUnionClass( null, model.createList( new RDFNode[] { apple, banana } ));
//use it as a range for a ObjectProperty
ObjectProperty objectProperty = model.createObjectProperty(NS +"fruitObjectProperty");
objectProperty.addRange(fruit_union);
model.write( System.out, "RDF/XML-ABBREV" );
}
Related
So I'm trying to learn writing more generic. I have POST/PUT/DELETE/GET for attatchments together with these entity types (there are also alot more entity types that I will need to add in the future).
This code works, and it is indeed more generic than writing 4 different getAttatchment with hardcorded personnel/workoder etc where it is ${apiType} currently. Some progress made atleast.
But how could I rewrite this even better? I would like to have e.g getAttatchments<T>(EntityType<T> .....) but I don't know how I could write it like that. And ofcourse it need to be typesafe so you don't actually pass entities that does not exist.
export enum EntityType {
Personnel = 'personnel',
Workorder = 'workorder',
Asset = 'asset',
AssetBooking = 'assetbooking',
}
async getAttachments(id: string | number, apiType: EntityType) {
return await this.get<AttachmentDetails[]>(
`attachment/${apiType}/${id}/attachment`
)
}
What you have already looks fairly generic but I would forgo the enum and use a union type instead. e.g.
type EntityType = 'personnel'|'workorder'|'asset'|'assetbooking'
type AttachmentDetails= any // whatever
// mock implementation
function get<T>( url:string) {
return ''
}
function getAttachments<T extends EntityType>(id: string | number, apiType: T) {
return get<AttachmentDetails[]>( `attachment/${apiType}/${id}/attachment` )
}
Playground
The dapper tutorial gives this example to help a user with Multi Mapping (One to Many)
While this works I am curious why they have you store the orders in the dictionary but then in the end they use a linq.Distinct() and return from the list. It seems like it would be cleaner to just return the ordersDictionary.Values as the dictionary logic ensures no duplicates.
//Tutorial
using (var connection = new SqlConnection(FiddleHelper.GetConnectionStringSqlServerW3Schools()))
{
Dictionary<int,Order> orderDictionary = new Dictionary<int, Order>();
List<Order> list = connection.Query<Order, OrderDetail, Order>(sql, (order, orderDetail) =>
{
if (!orderDictionary.TryGetValue(order.OrderID, out Order orderEntry))
{
orderEntry = order;
orderEntry.OrderDetails = new List<OrderDetail>();
orderDictionary.Add(orderEntry.OrderID, orderEntry);
}
orderEntry.OrderDetails.Add(orderDetail);
return orderEntry;
}, splitOn: "OrderID")
.Distinct()
.ToList();
return list;
}
//my suggestion
using (var connection = new SqlConnection(FiddleHelper.GetConnectionStringSqlServerW3Schools()))
{
Dictionary<int,Order> orderDictionary = new Dictionary<int, Order>();
//change 1 no need to store into list here
connection.Query<Order, OrderDetail, Order>(sql, (order, orderDetail) =>
{
if (!orderDictionary.TryGetValue(order.OrderID, out Order orderEntry))
{
orderEntry = order;
orderEntry.OrderDetails = new List<OrderDetail>();
orderDictionary.Add(orderEntry.OrderID, orderEntry);
}
orderEntry.OrderDetails.Add(orderDetail);
return orderEntry;
}, splitOn: "OrderID"); //change 2 remove .Distinct().ToList()
return orderDictionary.Values.ToList(); //change 3 return dictionaryValues
}
I'm the author of this tutorial: https://dapper-tutorial.net/query#example-query-multi-mapping-one-to-many
why they have you store the orders in the dictionary
A row is returned for every OrderDetail. So you want to make sure to add the OrderDetail to the existing Order and not create a new one for every OrderDetail. The dictionary is used for performance to check if the Order has been already created or not.
it would be cleaner to just return the ordersDictionary.Values
How will your query return dictionary values?
Of course, if you are in a method such as yours, you can do
var list = orderDictionary.Values;
return list;
But how to make this Connection.Query return dictionary values? An order is returned for every row/OrderDetail, so the order will be returned multiple times.
Outside the Query, your dictionary solution works great and is even a better solution for performance, but if you want to make your Query return the distinct list of orders without using Distinct or some similar method, it's impossible.
EDIT: Answer comment
my suggestion return orderDictionary.Values.ToList(); //change 3 return dictionaryValues
Thank you for your great feedback, it's always appreciated ;)
It would be weird in a tutorial to use what the query returns when there is no relationship but use the dictionary for one to many relationships
// no relationship
var orders = conn.Query<Order>("", ...).Distinct();
// one to many relationship
conn.Query<Order, OrderDetail>("", ...);
var orders = orderDictionary.Values.ToList();
Your solution is better for performance the way you use it, there is no doubt about this. But this is how people usually use the Query method:
var orders = conn.Query("", ...).Distinct();
var activeOrders = orders.Where(x => x.IsActive).ToList();
var inactiveOrders = orders.Where(x => !x.IsActive).ToList();
They use what the Query method returns.
But again, there is nothing wrong with the way you do it, this is even better if you can do it.
I am trying to provide a summary of items within an ArrayList (where order matters). Basically, I am setting up an exercise plan with two different types of activities (Training and Assessment). I then will provide a summary of the plan after adding each training/assessment to it.
The structure I have is something along the lines of:
exercisePlan: [
{TRAINING OBJECT},
{TRAINING OBJECT},
{ASSESSMENT OBJECT},
{TRAINING OBJECT}
]
What I want to be able to do is summarise this in a format of:
2 x Training, 1 x Assessment, 1 x Training, which will be displayed in a TextView in a Fragment. So I will have an arbitrarily long string that details the structure and order of the exercise plan.
I have tried to investigate using a HashMap or a plain ArrayList, but it seems pretty messy so I'm looking for a much cleaner way (perhaps a MutableList). Thanks in advance!
ArrayList is just a specific type of MutableList. It's usually preferable to use a plain List, because mutability can make code a little more complex to work with and keep robust.
I'd create a list of some class that wraps an action and the number of consecutive times to do it.
enum class Activity {
Training, Assessment
}
data class SummaryPlanStep(val activity: Activity, val consecutiveTimes: Int) {
override fun toString() = "$consecutiveTimes x $activity"
}
If you want to start with your summary, you can create it and later convert it to a plain list of activities like this:
val summary: List<SummaryPlanStep> = listOf(
SummaryPlanStep(Activity.Training, 2),
SummaryPlanStep(Activity.Assessment, 1),
SummaryPlanStep(Activity.Training, 1),
)
val plan: List<Activity> = summary.flatMap { List(it.consecutiveTimes) { _ -> it.activity } }
If you want to do it the other way around, it's more involved because I don't think there's a built-in way to group consecutive duplicate elements. You could a write a function for that.
fun <T> List<T>.groupConsecutiveDuplicates(): List<Pair<T, Int>> {
if (isEmpty()) return emptyList()
val outList = mutableListOf<Pair<T, Int>>()
var current = first() to 1
for (i in 1 until size) {
val item = this[i]
current = if (item == current.first)
current.first to (current.second + 1)
else {
outList.add(current)
item to 1
}
}
outList.add(current)
return outList
}
val plan: List<Activity> = listOf(
Activity.Training,
Activity.Training,
Activity.Assessment,
Activity.Training
)
val summary: List<SummaryPlanStep> = plan.groupConsecutiveDuplicates().map { SummaryPlanStep(it.first, it.second) }
This is what I have set up to work for me at the moment:
if (exercisePlanSummary.isNotEmpty() && exercisePlanSummary[exercisePlanSummary.size - 1].containsKey(trainingAssessment)) {
exercisePlanSummary[exercisePlanSummary.size - 1][trainingAssessment] = exercisePlanSummary[exercisePlanSummary.size - 1][trainingAssessment]!! + 1
} else {
exercisePlanSummary.add(hashMapOf(trainingAssessment to 1))
}
var textToDisplay = ""
exercisePlanSummary.forEach {
textToDisplay = if (textToDisplay.isNotEmpty()) {
textToDisplay.plus(", ${it.values.toList()[0]} x ${it.keys.toList()[0].capitalize()}")
} else {
textToDisplay.plus("${it.values.toList()[0]} x ${it.keys.toList()[0].capitalize()}")
}
}
where trainingAssessment is a String of "training" or "assessment". exercisePlanSummary is a ArrayList<HashMap<String, Int>>.
What #Tenfour04 has written above is perhaps more appropriate, and a cleaner way of implementing this. But my method is quite simple.
I tried to address a repeated property element using a key, like : ndb.Key('Books', 'Programming.one') but this key (the .one part) is not valid.
My example model below is a simplified version of my app's model. In this example code I have dependencies (using keys) between book chapters and tags :
class Tags(ndb.Model):
tag = ndb.StringProperty()
example : Tags(id = 'python', tag = 'python')
class Books(ndb.Model):
book = ndb.StringProperty)
chapters = ndb.StringProperty(repeated = True)
example : Books(id = 'Programming', book = 'Programming', chapters = ['one', 'two'])
class Dependencies(ndb.Model):
chapter_key = ndb.KeyProperty()
tag_keys = ndb.KeyProperty(repeated = True)
example :
chapter_key = ndb.Key('Books','Programming.one')
dependency_key = ndb.Key('Dependencies', chapter_key.id())
Dependencies(key = dependency_key, chapter_key = chapter_key,
tag_keys = [ndb.Key('Tags', 'python'), ndb.Key('Tags', 'java')])
Is it possible to address a repeated property using a ndb.Key. In my code example the chapter_key is not valid. Can I use a hook or property subclass to make it work?
To make it work I can combine a valid Book Key with a StringProperty to hold the chapter.
book_key = ndb.Key('Books','Programming')
chapter = 'one'
dependency_key = ndb.Key('Dependencies', book_key.id() + '.' + chapter)
Dependencies(key = dependency_key, book_key = book_key, chapter = chapter,
tag_keys = [ndb.Key('Tags', 'python'), ndb.Key('Tags', 'java')])
But I would like to benifit from a key.
I have the same question for a structured property. For this question the repeated StringProperty chapters is replaced by a repeated StructuredProperty like :
class Chapters(ndb.Model):
chapter = ndb.StringProperty()
word_count = ndb.IntegerProperty()
About my example and the use of keys :
I use keys in Dependencies, because keys in dependencies can refer to different kinds. These kinds differ from the Book like kind, because they do not have a repeated property like Book chapters. I use repeated depends_on_keys in my application, instead of chapter_keys.
In the example I also left out the parent keys. The Book like kind can have dependencies, but in my application you cannot find entities, which depend on the Book like kind.
No, you cannot use a key to identify a part of an entity. If you want to reference a part of an entity, you will need to use a key in conjunction with your own scheme for addressing entity parameters.
I am curious because the code above dont seem right in sintax terms:
tag_keys = [ndb.Key('Tags', 'python', ndb.Key('Tags', 'java']
You can use the code bellow, it worked for me:
class SomeModel(ndb.Model):
pass
class WithKeys(ndb.Model):
keys=ndb.KeyProperty(SomeModel,repeated=True)
keys=[ndb.Key(SomeModel,i) for i in range(1,10)]
with_keys=WithKeys(keys=keys)
print with_keys.keys
It prints:
[Key('SomeModel', 1), Key('SomeModel', 2), Key('SomeModel', 3), Key('SomeModel', 4), Key('SomeModel', 5), Key('SomeModel', 6), Key('SomeModel', 7), Key('SomeModel', 8), Key('SomeModel', 9)]
Goog luck
I am new to SalesForce (3 months).
Thus far I have been able to create an application in C# that I can use to preform Inserts and Updates to the SalesForce database. These transactions are one at a time.
No I have the need to preform large scale transactions. For example updating thousands of records at a time. Doing them one by one would quickly put us over our allotted API calls per 24 hour period.
I want to utilize the available bulk transactions process to cut down on the number of API calls. Thus far I have not had much luck coding this nor have I found any such documentation.
If anyone could either provide some generic examples or steer me to reliable documentation on the subject I would greatly appreciate it.
FYI, the data I need to use to do the updates and inserts comes from an IBM Unidata database sitting on an AIX machine. So direct web services communication is not realy possible. Getting the data from Unidata has been my headache. I have that worked out. Now the bulk api to SalesForce is my new headache.
Thanks in advance.
Jeff
You don't mention which API you're currently using, but using the soap partner or enterprise APIs you can write records to salesforce 200 at a time. (the create/update/upsert calls all take an array of SObjects).
Using the bulk API you can send data in chunks of thousands of rows at a time.
You can find the documentation for both sets of APIs here
The answers already given are a good start; however, are you sure you need to actually write a custom app that uses the bulk API? The salesforce data loader is a pretty robust tool, includes a command line interface, and can use either the "normal" or bulk data API's. Unless you are needing to do fancy logic as part of your insert/updates, or some sort of more real-time / on-demand loading, the data loader is going to be a better option than a custom app.
(this is the SOAP code though, not the Salesforce "Bulk API" ; careful not to confuse the two)
Mighy be below code provide clear insight on how to do bulk insertion.
/// Demonstrates how to create one or more Account records via the API
public void CreateAccountSample()
{
Account account1 = new Account();
Account account2 = new Account();
// Set some fields on the account1 object. Name field is not set
// so this record should fail as it is a required field.
account1.BillingCity = "Wichita";
account1.BillingCountry = "US";
account1.BillingState = "KA";
account1.BillingStreet = "4322 Haystack Boulevard";
account1.BillingPostalCode = "87901";
// Set some fields on the account2 object
account2.Name = "Golden Straw";
account2.BillingCity = "Oakland";
account2.BillingCountry = "US";
account2.BillingState = "CA";
account2.BillingStreet = "666 Raiders Boulevard";
account2.BillingPostalCode = "97502";
// Create an array of SObjects to hold the accounts
sObject[] accounts = new sObject[2];
// Add the accounts to the SObject array
accounts[0] = account1;
accounts[1] = account2;
// Invoke the create() call
try
{
SaveResult[] saveResults = binding.create(accounts);
// Handle the results
for (int i = 0; i < saveResults.Length; i++)
{
// Determine whether create() succeeded or had errors
if (saveResults[i].success)
{
// No errors, so retrieve the Id created for this record
Console.WriteLine("An Account was created with Id: {0}",
saveResults[i].id);
}
else
{
Console.WriteLine("Item {0} had an error updating", i);
// Handle the errors
foreach (Error error in saveResults[i].errors)
{
Console.WriteLine("Error code is: {0}",
error.statusCode.ToString());
Console.WriteLine("Error message: {0}", error.message);
}
}
}
}
catch (SoapException e)
{
Console.WriteLine(e.Code);
Console.WriteLine(e.Message);
}
}
Please find the small code which may help you to insert the data into salesforce objects using c# and WSDL APIs. I stuck to much to write code in c#. I assigned using direct index after spiting you can use your ways.
I split the column using | (pipe sign). You may change this and also <br>, \n, etc. (row and column breaking)
Means you can enter N rows which are in your HTML/text file. I wrote the program to add order by my designers who put the order on other website and fetch the data from e-commerce website and who has no interface for the salesforce to add/view the order records. I created one object for the same. and add following columns in the object.
Your suggestions are welcome.
private SforceService binding; // declare the salesforce servive using your access credential
try
{
string stroppid = "111111111111111111";
System.Net.HttpWebRequest fr;
Uri targetUri = new Uri("http://abc.xyz.com/test.html");
fr = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(targetUri);
if ((fr.GetResponse().ContentLength > 0))
{
System.IO.StreamReader str = new System.IO.StreamReader(fr.GetResponse().GetResponseStream());
string allrow = str.ReadToEnd();
string stringSeparators = "<br>";
string[] row1 = Regex.Split(allrow, stringSeparators);
CDI_Order_Data__c[] cord = new CDI_Order_Data__c[row1.Length - 1];
for (int i = 1; i < row1.Length-1; i++)
{
string colstr = row1[i].ToString();
string[] allcols = Regex.Split(colstr, "\\|");
cord[i] = new CDI_Order_Data__c(); // Very important to create object
cord[i].Opportunity_Job_Order__c = stroppid;
cord[i].jobid__c = stroppid;
cord[i].order__c = allcols[0].ToString();
cord[i].firstname__c = allcols[1].ToString();
cord[i].name__c = allcols[2].ToString();
DateTime dtDate = Convert.ToDateTime(allcols[3]);
cord[i].Date__c = new DateTime(Convert.ToInt32(dtDate.Year), Convert.ToInt32(dtDate.Month), Convert.ToInt32(dtDate.Day), 0, 0, 0); //sforcedate(allcols[3]); //XMLstringToDate(allcols[3]);
cord[i].clientpo__c = allcols[4].ToString();
cord[i].billaddr1__c = allcols[5].ToString();
cord[i].billaddr2__c = allcols[6].ToString();
cord[i].billcity__c = allcols[7].ToString();
cord[i].billstate__c = allcols[8].ToString();
cord[i].billzip__c = allcols[9].ToString();
cord[i].phone__c = allcols[10].ToString();
cord[i].fax__c = allcols[11].ToString();
cord[i].email__c = allcols[12].ToString();
cord[i].contact__c = allcols[13].ToString();
cord[i].lastname__c = allcols[15].ToString();
cord[i].Rep__c = allcols[16].ToString();
cord[i].sidemark__c = allcols[17].ToString();
cord[i].account__c = allcols[18].ToString();
cord[i].item__c = allcols[19].ToString();
cord[i].kmatid__c = allcols[20].ToString();
cord[i].qty__c = Convert.ToDouble(allcols[21]);
cord[i].Description__c = allcols[22].ToString();
cord[i].price__c = Convert.ToDouble(allcols[23]);
cord[i].installation__c = allcols[24].ToString();
cord[i].freight__c = allcols[25].ToString();
cord[i].discount__c = Convert.ToDouble(allcols[26]);
cord[i].salestax__c = Convert.ToDouble(allcols[27]);
cord[i].taxcode__c = allcols[28].ToString();
}
try {
SaveResult[] saveResults = binding.create(cord);
}
catch (Exception ce)
{
Response.Write("Buld order update errror" +ce.Message.ToString());
Response.End();
}
if (str != null) str.Close();
}