Somebody please explain why am getting null pointer exception
HtmlPage page = null;
boolean savePagesLocally = false;
String url = "http://example.com";
WebClient webClient = new WebClient(BrowserVersion.FIREFOX_3_6);
webClient.setThrowExceptionOnScriptError(false);
try
{
page = webClient.getPage( url );
HtmlRadioButtonInput radioButton2 = (HtmlRadioButtonInput) page.getElementById("ctl00_phContent_ucUnifiedSearch_rdoIndvl");
radioButton2.click();
HtmlTextInput textField3 = (HtmlTextInput) page.getElementById("ctl00_phContent_ucUnifiedSearch_txtIndvl");
textField3.setValueAttribute("1061726"); // null pointer occurs here!
For those who would like to know:
Replacing the line
HtmlTextInput textField3 = (HtmlTextInput) page.getElementById("ctl00_phContent_ucUnifiedSearch_txtIndvl");
With the following loop:
HtmlTextInput textField3 = (HtmlTextInput) page.getElementById("ctl00_phContent_ucUnifiedSearch_txtIndvl");
while(textField3 != null) {
webClient.waitForBackgroundJavaScript(100)
textField3 = (HtmlTextInput) page.getElementById("ctl00_phContent_ucUnifiedSearch_txtIndvl");
}
This loop will wait until HTMLUnit has an element by that ID.
Related
I have a ldap method that returns all users that are in it (almost 1300 users) and I want to return them by page, similar to what PagingAndSortingRepository does in Springboot:
If I have this endpoint ( users/?page=0&size=1 )and I wnat to return on page 0 just 1 entry.
Is there any way to do that?
Currently I have this but it doesn´t work:
SearchRequest searchRequest = new SearchRequest(ldapConfig.getBaseDn(), SearchScope.SUB,
Filter.createEqualityFilter("objectClass", "person"));
ASN1OctetString resumeCookie = null;
while (true) {
searchRequest.setControls(new SimplePagedResultsControl(pageable.getPageSize(), resumeCookie));
SearchResult searchResult = ldapConnection.search(searchRequest);
numSearches++;
totalEntriesReturned += searchResult.getEntryCount();
for (SearchResultEntry e : searchResult.getSearchEntries()) {
String[] completeDN = UaaUtils.searchCnInDn(e.getDN());
String[] username = completeDN[0].split("=");
UserEntity u = new UserEntity(username[1]);
list.add(u);
System.out.println("TESTE");
}
SimplePagedResultsControl responseControl = SimplePagedResultsControl.get(searchResult);
if (responseControl.moreResultsToReturn()) {
// The resume cookie can be included in the simple paged results
// control included in the next search to get the next page of results.
System.out.println("Antes "+resumeCookie);
resumeCookie = responseControl.getCookie();
System.out.println("Depois "+resumeCookie);
} else {
break;
}
Page<UserEntity> newPage = new PageImpl<>(list, pageable, totalEntriesReturned);
System.out.println("content " + newPage.getContent());
System.out.println("total elements " + newPage.getTotalElements());
System.out.println(totalEntriesReturned);
}
I'm unsure if this is the proper way, but here's how I went about it:
public PaginatedLookup getAll(String page, String perPage) {
PagedResultsCookie cookie = null;
List<LdapUser> results;
try {
if ( page != null ) {
cookie = new PagedResultsCookie(Hex.decode(page));
} // end if
Integer pageSize = perPage != null ? Integer.parseInt(perPage) : PROCESSOR_PAGE_SIZE;
PagedResultsDirContextProcessor processor = new PagedResultsDirContextProcessor(pageSize, cookie);
LdapName base = LdapUtils.emptyLdapName();
SearchControls sc = new SearchControls();
sc.setSearchScope(SearchControls.SUBTREE_SCOPE);
sc.setTimeLimit(THREE_SECONDS);
sc.setCountLimit(pageSize);
sc.setReturningAttributes(new String[]{"cn", "title"});
results = ldapTemplate.search(base, filter.encode(), sc, new PersonAttributesMapper(), processor);
cookie = processor.getCookie();
} catch ( Exception e ) {
log.error(e.getMessage());
return null;
} // end try-catch
String nextPage = null;
if ( cookie != null && cookie.getCookie() != null ) {
nextPage = new String(Hex.encode(cookie.getCookie()));
} // end if
return new PaginatedLookup(nextPage, results);
}
The main issue I kept on hitting was trying to get the cookie as something that could be sent to the client, which is where my Hex.decode and Hex.encode came in handy.
PersonAttributesMapper is a private mapper that I have to make the fields more human readable, and PaginatedLookup is a custom class I use for API responses.
My application actually has mail send / receive functionalities to handle.
While receiving the mail, i am unable to view the image which is an inline image being sent from outlook.
Can some one help me how can i catch the image and make available always.
I have java code like below,
try (InputStream stream = new ByteArrayInputStream(Base64
.getMimeDecoder().decode(mail))) {
MimeMessage message = new MimeMessage(null, stream);
Object messageContent = message.getContent();
if (messageContent instanceof String) {
body = (String) messageContent;
} else if (messageContent instanceof MimeMultipart) {
content = (MimeMultipart) messageContent;
for (int i = 0; i < content.getCount(); i++) {
BodyPart bodyPart = content.getBodyPart(i);
String disposition = bodyPart.getDisposition();
if (disposition == null
|| disposition
.equalsIgnoreCase(Part.INLINE)) {
Object object = bodyPart.getContent();
if (object instanceof String) {
body = object.toString();
} else if (object instanceof MimeMultipart) {
MimeMultipart mimeMultipart = (MimeMultipart) object;
String plainBody = null;
String htmlBody = null;
for (int j = 0; j < mimeMultipart.getCount(); j++) {
BodyPart multipartBodyPart = mimeMultipart
.getBodyPart(j);
String multipartDisposition = multipartBodyPart
.getDisposition();
String multipartContentType = multipartBodyPart
.getContentType();
if (multipartDisposition == null
&& multipartContentType != null) {
if (multipartContentType
.contains(MediaType.TEXT_HTML)) {
htmlBody = multipartBodyPart
.getContent().toString();
} else if (multipartContentType
.contains(MediaType.TEXT_PLAIN)) {
plainBody = multipartBodyPart
.getContent().toString();
}
}
}
if (htmlBody != null) {
body = htmlBody;
} else {
body = plainBody;
}
}
}
}
}
Client side i am using CKEditor to handle email body data.
Thanks a lot.
i got a solution from the example shared below
https://www.tutorialspoint.com/javamail_api/javamail_api_fetching_emails.htm
But, this example explains, how to find the image in body and store.
I have also done below to replace src
`
Pattern htmltag = Pattern.compile("]src=\"[^>]>(.?)");
Pattern link = Pattern.compile("src=\"[^>]\">");
String s1 = "";
Matcher tagmatch = htmltag.matcher(s1);
List<String> links = new ArrayList<String>();
while (tagmatch.find()) {
Matcher matcher = link.matcher(tagmatch.group());
matcher.find();
String link1 = matcher.group().replaceFirst("src=\"", "")
.replaceFirst("\">", "")
.replaceFirst("\"[\\s]?target=\"[a-zA-Z_0-9]*", "");
links.add(link1);
s1 = s1.replaceAll(link1, "C:\\//Initiatives_KM\\//image.jpg");
}
`
And on top of this, i gonna do Base64 encoding so that i dont require store in file system.
encodedfileString = Base64.getEncoder().encodeToString(bArray);
With all these i can conclude to say, i got solution for my issue. Thank you.
I am trying pass contact id as a parameter to one of the webservices and get value to update in account object. But i am not able to set contact records ID field as a parameter in end point URL.
List<Contact> ContactUpdate = [SELECT id FROM Contact where Rep__c like 'CRM%'];
String ContactID;
HttpRequest req = new HttpRequest();
req.setTimeout(60000);
req.setHeader('Accept','*/*');
req.setHeader('Content-Type','application/json'); // Content Type
req.setMethod('GET');
for (Contact c : ContactUpdate)
{
ContactID = c.id;
req.setEndpoint('https://xxx/xxxx/xxxxx/xxx/xxx-lookup? ContactID= {! ContactID});
Http http = new Http();
HTTPResponse res = http.send(req);
System.debug(res.getBody());
JSONParser parser = JSON.createParser(res.getBody());
String GMMID;
while (parser.nextToken() != null) {
if ((parser.getCurrentToken() == JSONToken.FIELD_NAME) &&
(parser.getText() == 'GCGMM')) {
// Get the value.
parser.nextToken();
// Compute the grand total price for all invoices.
GMMID = parser.gettext();
}
}
//ContactUpdate.IsFutureContext__c = true;
C.Group_ID__c = GMMID;
update c;
}
Could someone please guide me in adding variable as parameter in endpoint URL.
Try using the body and removing it from your endpoint.
String body = 'ContactID=' + contactID;
req.setbody(body);
private async void refresh_Tapped(object sender, TappedRoutedEventArgs e)
{
httpclient.CancelPendingRequests();
string url = "http://gensav.altervista.org/";
var source = await httpclient.GetStringAsync(url); //PROBLEM
source = WebUtility.HtmlDecode(source);
HtmlDocument result = new HtmlDocument();
result.LoadHtml(source);
List<HtmlNode> toftitle = result.DocumentNode.Descendants().Where
(x => (x.Attributes["style"] != null
&& x.Attributes["style"].Value.Contains("font-size:14px;line-height:20px;margin-bottom:10px;"))).ToList();
var li = toftitle[0].InnerHtml.Replace("<br>", "\n");
li = li.Replace("<span style=\"text-transform: uppercase\">", "");
li = li.Replace("</span>", "");
postTextBlock.Text = li;
}
What this code does is basically retrieve a string from a website (HTML source which is parsed right after). This code is executed whenever i click a button: the first time i click it it works correctly, but the second time i think that the method (GetStringAsync) returns an uncompleted task and then execution continues using the old value of source. Indeed, my TextBlock does not update.
Any solution?
You get probably a cached response.
May this will work for you:
httpclient.CancelPendingRequests();
// disable caching
httpclient.DefaultRequestHeaders.Add("Cache-Control", "no-cache");
string url = "http://gensav.altervista.org/";
var source = await httpclient.GetStringAsync(url);
...
You can also add a meaningless value to your url like this:
string url = "http://gensav.altervista.org/" + "?nocahce=" + Guid.NewGuid();
To prevent Http responses from getting cached, I do this (in WP8.1):
HttpBaseProtocolFilter filter = new HttpBaseProtocolFilter();
filter.CacheControl.ReadBehavior =
Windows.Web.Http.Filters.HttpCacheReadBehavior.MostRecent;
filter.CacheControl.WriteBehavior =
Windows.Web.Http.Filters.HttpCacheWriteBehavior.NoCache;
_httpClient = new HttpClient(filter);
Initialize your HttpClient in this manner to prevent caching behaviour.
I am making a request to a service and getting a response. Service works fine and I am deserializing an object without a problem.
Below is an example of my code. The problem is the result object is null at the end. I do not know why am I losing a reference. What is the proper solution?
HttpWebRequest hwrq = (HttpWebRequest)WebRequest.Create("http://service.svc/Login");
hwrq.ContentType = "application/x-www-form-urlencoded; encoding='utf-8'";
hwrq.Accept = "text/xml";
hwrq.Method = "POST";
Users result = null; // object initializaiton
hwrq.BeginGetRequestStream(ar =>
{
var requestStream = hwrq.EndGetRequestStream(ar);
using (var sw = new StreamWriter(requestStream, System.Text.Encoding.UTF8))
{
sw.Write("Username Password");
sw.Close();
}
hwrq.BeginGetResponse(a =>
{
var response = hwrq.EndGetResponse(a);
var responseStream = response.GetResponseStream();
using (var sr = new StreamReader(responseStream))
{
returnedXML = sr.ReadToEnd();
XmlSerializer xds = new XmlSerializer(typeof(Users));
byte[] byteArray = Encoding.UTF8.GetBytes(returnedXML);
MemoryStream stream = new MemoryStream(byteArray);
result = (Users)xds.Deserialize(stream); // object is correct
}
responseStream.Close();
response.Close();
}, null);
}, null);
return result; // object is null!
Just like MarcinJuraszek suggested, the proper way is to make a callback and handle the results there.