I'm looking to write some code that pulls from an external source. On our build/qa environment, I want it to hit a different source then production. Just need a way to identify the servers name. Similar to currentPage.getName(), but more like currentServer.getName().
Sorry for the limited info. I'm not a java developer. Here's what i've found.
Using this I was able to get a list of the available environment variables.
<%
Map<String, String> envMap = System.getenv();
SortedMap<String, String> sortedEnvMap = new TreeMap<String, String>(envMap);
Set<String> keySet = sortedEnvMap.keySet();
for (String key : keySet) {
String value = envMap.get(key);
%><%=key%>: <%=value%><br><%
}
%>
That led me to this bit of code.
String server = System.getenv("HOSTNAME");
Related
i All,
The Project: A handy utility for tickets at work to help sort and manage my tickets, built on top of our provider's API.
My Background: I'm like 19 hours total into dart and am almost done with my first bootcamp.
The GIST: I have started writing a provider for our helpdesk software's API. I am sending requests to the API successfully but I am utterly clueless on transforming the data into an actual map to generate ticket instances with.
What I'm trying to accomplish:
Fetch the data from the API
Convert that String into a MAP of json objects that I can iterate
through
Iterate through the JSON objects to create instances of ticket
objects with
build a list of those ticket objects and return it to requestor to
generate a widget list.
I could swear I've done everything reasonable to try and type cast this as a map but I think there is something I just don't understand. FWIW I think whatever it is I'm trying to do is accessing a Future not the actual data. and I think i might be confused or unclear about async/awaits but my understanding of the code I've written is that the actions are chained one to another so I shouldn't be "waiting" for anything or getting a future, I should just be getting a string.
Otherwise, Here's my code cleaned up, any advice or suggestions on working with the data in the print would be much appreciated.
class ticketingsoftwareAPIProvider {
// Object Properties
Client _client = Client();
final String _ApiKey = "YOUSHALLPASS!";
final String apiRoot = "https://api.ticketingsoftware.com";
final String agentId = '2675309';
getAgentTickets() async {
// Headers for our HTTP Request
Map<String, String> headers = {
'X-ticketingsoftware-Authorization': 'Bearer $_ApiKey',
'Accept': 'application/vnd.ticketingsoftware.v2.1+json',
'Content-Type': 'application/json'
};
await _client
.get(Uri.parse('$apiRoot/incidents.json?assigned_to=$agentId'))
.then((data) {
if (data.statusCode == 200) {
print(json.decode(data.body));
// CANT SEEM TO MAKE THIS A INTO A MAP TO GENERATE OBJECTS WITH.
}
});
}
}
} // END CLASS
I apologize for any missing information, I am new to dart and REALLY programming in general and am still learning the culture. please let me know if there is any additional information that might help.
My Solution ended up being:
List ticketJson = json.decode(data.body);
for (var ticket = 0; ticket < ticketJson.length; ticket++) {
thisAgentsTickets.add(incident.fromJson(ticketJson[ticket]));
return thisAgentsTickets;
I think I've been learning from a very out of date course.
You need fromJson method to convert it to an object. For example
if (data.statusCode == 200) {
return AgentTicket = AgentTicket.fromJson(data.body)
}
Use json_serializable package for easy way to create the method, or you can create it manually too.
I have the following simple main class that executes Spark.
Spark.port(4570);
final Configuration configuration = new Configuration(new Version(2, 3, 0));
configuration.setClassForTemplateLoading(SparkHandler.class, "/");
Spark.staticFileLocation("/public");
Spark.get("/", (request, response) -> {
// read patterns
// attributes for web-interface.
Map<String, Object> attributes = new HashMap<>();
attributes.put("data", "someData");
return new ModelAndView(attributes, "timeline.ftl");
} , new FreeMarkerEngine());
Everything woks fine. When I go to http://localhost:4570/ I got the requested web-page!
I now change the path in the get statement to /a/b/c but execute the very same code:
Spark.port(4570);
final Configuration configuration = new Configuration(new Version(2, 3, 0));
configuration.setClassForTemplateLoading(SparkHandler.class, "/");
Spark.staticFileLocation("/public");
Spark.get("/a/b/c", (request, response) -> {
// read patterns
// attributes for web-interface.
Map<String, Object> attributes = new HashMap<>();
attributes.put("data", "someData");
return new ModelAndView(attributes, "timeline.ftl");
} , new FreeMarkerEngine());
If I now go to e.g. http://localhost:4570/a/b/c, it returns messages that lots of resources that could previously be found are not available any more. E.g.
INFO 28/07/16 14:45:03:The requested route [/a/b/vis/vis.js] has not been mapped in Spark
However, it is exactly in the location /public/vis/vis.js.
Does that get command change my static directory? Or is something happening here that I just do not understand :).
I found the answer!
In my freemarker/html file I used relative parts like e.g.
<script src="./vis/vis.js"></script>
Changing them to absolute paths solves the problem:
<script src="/vis/vis.js"></script>
Sorry for the silly question, but maybe it helps others.
I'm consuming an external REST service that provides all content as UTF-8 encoded.
For some reason my application cannot properly handle the response. If I dump the response I will se things like LuleÃ¥ (should be Luleå).
EDIT:
The same behavior happens if i forward (without altering) the string to the UI, ex.:
flash.message = "Test" + integrationService.testEncoding()
What I did was to create a _Events.groovy file in the /script folder and specifying there that
eventConfigureTomcat = { tomcat ->
tomcat.connector.URIEncoding = "UTF-8"
tomcat.connector.useBodyEncodingForURI = true
}
I also have the following in my Config.groovy:
grails.views.gsp.encoding = "UTF-8"
grails.converters.encoding = "UTF-8"
But that changed nothing. The response is still wrongly shown. I'm not sure if this is a configuration issue with Grails, with the embedded tomcat or with something else. I'm currently running my test setup on windows 7, but the same issue happens on my server running on Centos. Please advice.
EDIT2:
If i consume the REST service using curl, everything is rendered correctly in the output.
EDIT3:
I'm using org.springframework.web.client.RestTemplate and HttpComponents to consume the service:
private static final HttpHeaders requestHeaders
static{
requestHeaders = new HttpHeaders()
requestHeaders.set(HttpHeaders.CONTENT_TYPE, "application/json")
requestHeaders.set(HttpHeaders.ACCEPT, "application/json")
requestHeaders.set("Accept-Encoding", "gzip")
}
private final static RestTemplate restTemplate = new RestTemplate(new HttpComponentsClientHttpRequestFactory(
HttpClientBuilder.create().build()))
...
...
public def testEncoding(){
ResponseEntity<String> response = restTemplate.exchange(
"https://www.url.com", HttpMethod.GET, new HttpEntity<Object>(requestHeaders),
String.class)
def gamesJson = JSON.parse(response.getBody())
//...
//parse value from gamesJson
//...
return testValue
}
Per my previous answer:
You just need to add the StringHttpMessageConverter to the template's message converters:
RestTemplate template = new RestTemplate();
template.getMessageConverters()
.add(0, new StringHttpMessageConverter(Charset.forName("UTF-8")));
ResponseEntity<Object> response = template.exchange(endpoint, method, entity,
Object.class);
The encoding type can be enforced in the environment itself.
JAVA_TOOL_OPTIONS -Dfile.encoding=UTF8 -Dclient.encoding.override=UTF-8
Just try setting the above encoding settings in windows/linux. I hope this should resolve the issue.
In this case, JVM will pickup the default encoding type from environment variable.
Our team experienced a similar issue before, we have a 3rd party service and they said their output is encoded in UTF-8. But the strings returned are still garbled. After a bit of testing, it turns out that they were returning ISO-8859-1 encoded strings. What we did was to decode/encode their input into UTF-8 encoded characters so we can use those properly.
For your case, I think this is a similar issue:
UTF-8: Luleå
ISO-8859-1: Luleå
In Java, we did something like this:
Charset initialEncoding = Charsets.ISO_8859_1;
Charset outputEncoding = Charsets.UTF_8;
byte[] byteArray = input.getBytes(initialEncoding);
String output = new String(new String(byteArray, outputEncoding));
In Groovy, I think you could do something like
import groovy.json.JsonSlurper;
def main = {
def response = '{"name":"Luleå"}'
def slurper = new JsonSlurper()
def result = slurper.parse(response.getBytes(), 'UTF-8')
println result.name // prints Luleå
}
The answer to my problem is already found on Stack Exchange.
You just need to add the StringHttpMessageConverter to the template's message converters:
restTemplate.getMessageConverters()
.add(0, new StringHttpMessageConverter(Charset.forName("UTF-8")));
In my case that i had the same problem with contents received from my REST web service from the server and not my local enviroment.
I had search a lot and finally i found a solution that resolved my issue.
In Windows I added a new environment variable with key: JAVA_TOOL_OPTIONS and set its value to: -Dfile.encoding=UTF8.
The (Java) System property will be set automatically every time a JVM is started. You will know that the parameter has been picked up because the following message will be posted to System.err:
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF8
Do I need to install ASP.NET Web API Client Libraries (as this article indicates) in order to post data to a Web API server? If so, can I do so in Visual Studio 2008 from a Windows CE project?
The reasons I wonder are:
0) The client is a Windows CE project, for which I'm using Visual Studio 2008, and I don't know if ASP.NET Web API Client Libraries are available for that version; I know I don't have the NuGet Package Manager in that environment.
1) I am successfully querying data from my RESTful Web API methods without installing ASP.NET Web API Client Libraries, using code like this:
while (true)
{
deptList.departments.Clear();
string uri = String.Format("http://platypi:28642/api/Duckbills/{0}/{1}", lastIdFetched, RECORDS_TO_FETCH);
var webRequest = (HttpWebRequest) WebRequest.Create(uri);
webRequest.Method = "GET";
using (var webResponse = (HttpWebResponse)webRequest.GetResponse())
{
if (webResponse.StatusCode == HttpStatusCode.OK)
{
var reader = new StreamReader(webResponse.GetResponseStream());
string jsonizedDuckbills = reader.ReadToEnd();
List<Duckbill> duckbills = JsonConvert.DeserializeObject<List<Duckbill>>(jsonizedDuckbills);
if (duckbills.Count <= 0) break;
foreach (Duckbill duckbill in duckbills)
{
duckbillList.duckbills.Add(duckbill);
lastIdFetched = duckbill.Id;
}
} // if ((webResponse.StatusCode == HttpStatusCode.OK)
} // using HttpWebResponse
int recordsAdded = LocalDBUtils.BulkInsertDuckbills(duckbillList.duckbills);
totalRecordsAdded += recordsAdded;
} // while (true);
I'm stuck on posting, though, and the cleanest example I've seen so far for doing so is at that link already shown above.
I got an answer to my question on how to post here, but that hasn't made me smart enough yet to actually accomplish it. It's a step in the right direction, perhaps, although I reckon, based on how my client query code looks, that the client posting code would be of similar "style" (like the previously referenced article here, and unlike the likewise previously referenced answer here).
UPDATE
If I'm already providing the data in the uri string itself, as I am, like this:
string uri = String.Format("http://shannon2:28642/api/Departments/{0}/{1}", onAccountOfWally, moniker);
...why would I need to also specify it in postData? Or could I set postData (if that's just a necessary step to get the length) to those values...something like:
postData = String.Format("{0}, {1}", onAccountOfWally, moniker);
?
To talk to ASP.NET Web API, you do not necessarily need the client library, although it makes the life easier. After all, one of the benefits of HTTP services is the platform reach. Literally you can use any library that gives you HTTP capabilities. So, using WebRequest, you can do something like this. I'm using JSON in the payload. You can use XML and application/www-form-urlencoded as well. Just that you need to format the request body accordingly. Also, for complex objects, you will be better off using JSON.NET unlike formatting the JSON manually.
var request = System.Net.WebRequest.Create("http://localhost:12345/api/values");
request.Method = "POST";
string postData = "{\"firstName\":\"Steven\"," + "\"lastName\":\"Waugh\"}";
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
request.ContentType = "application/json";
request.ContentLength = byteArray.Length;
using (var requestStream = request.GetRequestStream())
{
requestStream.Write(byteArray, 0, byteArray.Length);
}
using (var response = request.GetResponse())
{
using (var responseStream = response.GetResponseStream())
{
using (var reader = new System.IO.StreamReader(responseStream))
{
string responseFromServer = reader.ReadToEnd();
Console.WriteLine(responseFromServer);
}
}
}
EDIT
If you are specifying data in URI, you do not need to specify the same in the request body. To let web API bind the parameters for you from URI, you will need to specify the route accordingly so that the placeholders are set for onAccountOfWally and moniker. Then you will need to use a simple type like string as action method parameters for web API to bind. By default, simple types are bound from URI path and query string and complex types from request body.
I am trying to write REST web service through which our clients can upload a file on our file server. IS there an example or any useful links which I can refer for any guidance?
I haven't seen many examples of POST operation using ADO.NET data services available.
I've uploaded a file to ADO.NET dataservices using POST although I'm not sure whether it's the recommended approach. The way I went about it is:
On the dataservice I've implemented a service operation called UploadFile (using the WebInvoke attribute so that it caters for POST calls):
[WebInvoke]
public void UploadFile()
{
var request = HttpContext.Current.Request;
for (int i = 0; i < request.Files.Count; i++)
{
var file = request.Files[i];
var inputValues = new byte[file.ContentLength];
using (var requestStream = file.InputStream)
{
requestStream.Read(inputValues, 0, file.ContentLength);
}
File.WriteAllBytes(#"c:\temp\" + file.FileName, inputValues);
}
}
Then on the client side I call the data service using:
var urlString = "http://localhost/TestDataServicePost/CustomDataService.svc/UploadFile";
var webClient = new WebClient();
webClient.UploadFile(urlString, "POST", #"C:\temp\test.txt");
This uses a WebClient to upload the file which places the file data in the HttpRequest.Files collection and sets the content type. If you would prefer to send the contents of the file yourself (eg from an Asp FileUpload control) rather than the webClient reading a file using a path to the file, you can use a WebRequest similar to the way that it's done in this post. Although instead of using
FileStream fileStream = new FileStream(uploadfile,
FileMode.Open, FileAccess.Read);
you could use a byte array that you pass in.
I hope this helps.
I'm not 100% sure how to do this directly to a file server per se, but ADO.Net Data Services definitely support something similar to a database. The code below is how a similar goal of putting a file into a database has been accomplished. Not sure how much that will help, but
var myDocumentRepositoryUri = new Uri("uri here");
var dataContext = new FileRepositoryEntities(myDocumentRepositoryUri);
var myFile = new FileItem();
myfile.Filename = "upload.dat";
myFile.Data = new byte[1000]; // or put whatever file data you want to here
dataContext.AddToFileItem(myFile);
dataContext.SaveChanges();
Note: this code is also using Entity Framework to create a FileItem (representation of a database table as an object) and to save that data.