We are trying to upgrade the httpclient from 4 to 5. As a part of the upgrade, we have changed the imports accordingly. But, the code uses Httpclientbuilder and sets the sslcontext.
As per the documentation from apache, they have removed the setsslcontext from the Httpclientbuilder methods and I have not found any alternative.
The error says
The method setSSLContext(sslcontext) is undefined for the type HttpClientBuilder.
The code is as follows:
import org.apache.hc.client5.http.classic.HttpClient;
import org.apache.hc.client5.http.impl.classic.HttpClientBuilder;
SSLContext sslcontext = SSLContext.getDefault();
HttpClient httpclient = HttpClientBuilder.create().setSSLContext(sslcontext).build();
ClientHttpRequestFactory reqFac = new HttpComponentsClientHttpRequestFactory(httpclient);
Related
We are migrating Drools from 5.5.0 to 6.2.0. I am not able to figure compatible usage of org.drools.compiler.lang.descr.PackageDescr which is implementing org.kie.internal.definition.KnowledgeDescr. We get an instance of PackageDescr from DrlParser.parse and then creating a org.drools.io.Resource using org.drools.io.ResourceFactory.newDescrResource(KnowledgeDescr) and argument here is of type org.drools.definition.KnowledgeDescr which is not the same KnowledgeDescr that PackageDescr implemented above. We are not switching to KIE API as of now but using Knowledge Legacy Adapter only. What is the replacement for this issue to be fixed?
Usage example:
import org.drools.builder.KnowledgeBuilder;
import org.drools.builder.KnowledgeBuilderConfiguration;
import org.drools.builder.KnowledgeBuilderFactory;
import org.drools.builder.ResourceType;
import org.drools.io.ResourceFactory;
import org.drools.compiler.lang.descr.PackageDescr;
KnowledgeBuilderConfiguration builderConf = ...
PackageDescr pkg = ...
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder(builderConf);
// Compilation error in this line
kbuilder.add(ResourceFactory.newDescrResource(pkg), ResourceType.DESCR);
I am getting below error while using HttpClient. Can you let me know how to use HttpClient exactly. I am new with elastic4s.
I want to connect scala with ssl configured elasticsearch. I also want to know how I can pass SSL details with link such as keystore path, truststore path and user name , password.
scala> import com.sksamuel.elastic4s.http.{HttpClient, HttpResponse}
import com.sksamuel.elastic4s.http.{HttpClient, HttpResponse}
scala> import com.sksamuel.elastic4s.http.ElasticDsl._
import com.sksamuel.elastic4s.http.ElasticDsl._
scala> val client = HttpClient(ElasticsearchClientUri(uri))
<console>:39: error: not found: value HttpClient
val client = HttpClient(ElasticsearchClientUri(uri))
HttpClient appears to be a trait in the codebase.You seem to be using the same as an object. You can check the implementation Here. For your use case i think the better approach would be to use ElasticClient. Code would look something like this
import com.sksamuel.elastic4s.http._
import com.sksamuel.elastic4s.{ElasticClient, ElasticDsl, ElasticsearchClientUri}
val client = elastic4s.ElasticClient(ElasticsearchClientUri(uri))
I got the same problem, i.e. in my setup I got errors (not found) when trying to use HttpClient (elastic4s-core,elastic4s-http-streams and elastic4s-client-esjava version 7.3.1 on scala 2.12.10).
The solution: you should be able to find and use JavaClient, an implementation of HttpClient that wraps the Elasticsearch Java Rest Client.
An example of how to use the JavaClient can be found here.
Thus, your code should look like the following:
import com.sksamuel.elastic4s.http.JavaClient
import com.sksamuel.elastic4s.{ElasticClient, ElasticDsl, ElasticProperties}
...
val client = ElasticClient(JavaClient(ElasticProperties(uri)))
Compiler error when using example provided in Flink documentation. The Flink documentation provides sample Scala code to set the REST client factory parameters when talking to Elasticsearch, https://ci.apache.org/projects/flink/flink-docs-stable/dev/connectors/elasticsearch.html.
When trying out this code i get a compiler error in IntelliJ which says "Cannot resolve symbol restClientBuilder".
I found the following SO which is EXACTLY my problem except that it is in Java and i am doing this in Scala.
Apache Flink (v1.6.0) authenticate Elasticsearch Sink (v6.4)
I tried copy pasting the solution code provided in the above SO into IntelliJ, the auto-converted code also has compiler errors.
// provide a RestClientFactory for custom configuration on the internally created REST client
// i only show the setMaxRetryTimeoutMillis for illustration purposes, the actual code will use HTTP cutom callback
esSinkBuilder.setRestClientFactory(
restClientBuilder -> {
restClientBuilder.setMaxRetryTimeoutMillis(10)
}
)
Then i tried (auto generated Java to Scala code by IntelliJ)
// provide a RestClientFactory for custom configuration on the internally created REST client// provide a RestClientFactory for custom configuration on the internally created REST client
import org.apache.http.auth.AuthScope
import org.apache.http.auth.UsernamePasswordCredentials
import org.apache.http.client.CredentialsProvider
import org.apache.http.impl.client.BasicCredentialsProvider
import org.apache.http.impl.nio.client.HttpAsyncClientBuilder
import org.elasticsearch.client.RestClientBuilder
// provide a RestClientFactory for custom configuration on the internally created REST client// provide a RestClientFactory for custom configuration on the internally created REST client
esSinkBuilder.setRestClientFactory((restClientBuilder) => {
def foo(restClientBuilder) = restClientBuilder.setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() {
override def customizeHttpClient(httpClientBuilder: HttpAsyncClientBuilder): HttpAsyncClientBuilder = { // elasticsearch username and password
val credentialsProvider = new BasicCredentialsProvider
credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(es_user, es_password))
httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider)
}
})
foo(restClientBuilder)
})
The original code snippet produces the error "cannot resolve RestClientFactory" and then Java to Scala shows several other errors.
So basically i need to find a Scala version of the solution described in Apache Flink (v1.6.0) authenticate Elasticsearch Sink (v6.4)
Update 1: I was able to make some progress with some help from IntelliJ. The following code compiles and runs but there is another problem.
esSinkBuilder.setRestClientFactory(
new RestClientFactory {
override def configureRestClientBuilder(restClientBuilder: RestClientBuilder): Unit = {
restClientBuilder.setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() {
override def customizeHttpClient(httpClientBuilder: HttpAsyncClientBuilder): HttpAsyncClientBuilder = {
// elasticsearch username and password
val credentialsProvider = new BasicCredentialsProvider
credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(es_user, es_password))
httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider)
httpClientBuilder.setSSLContext(trustfulSslContext)
}
})
}
}
The problem is that i am not sure if i should be doing a new of the RestClientFactory object. What happens is that the application connects to the elasticsearch cluster but then discovers that the SSL CERT is not valid, so i had to put the trustfullSslContext (as described here https://gist.github.com/iRevive/4a3c7cb96374da5da80d4538f3da17cb), this got me past the SSL issue but now the ES REST Client does a ping test and the ping fails, it throws an exception and the app shutsdown. I am suspecting that the ping fails because of the SSL error and maybe it is not using the trustfulSslContext i setup as part of new RestClientFactory and this makes me suspect that i should not have done the new, there should be a simple way to update the existing RestclientFactory object and basically this is all happening because of my lack of Scala knowledge.
Happy to report that this is resolved. The code i posted in Update 1 is correct. The ping to ECE was not working for two reasons:
The certificate needs to include the complete chain including the root CA, the intermediate CA and the cert for the ECE. This helped get rid of the whole trustfulSslContext stuff.
The ECE was sitting behind an ha-proxy and the proxy did the mapping for the hostname in the HTTP request to the actual deployment cluster name in ECE. this mapping logic did not take into account that the Java REST High Level client uses the org.apache.httphost class which creates the hostname as hostname:port_number even when the port number is 443. Since it did not find the mapping because of the 443 therefore the ECE returned a 404 error instead of 200 ok (only way to find this was to look at unencrypted packets at the ha-proxy). Once the mapping logic in ha-proxy was fixed, the mapping was found and the pings are now successfull.
I am trying to use JettyConnectorProvider with jersey 2.x for proxy support, but it seems that proxy authorization is not working, i have recently upgraded from Jersey 1.x to 2.x.
Please find below the code :
ClientBuilder clientBuilder= ClientBuilder.newBuilder();
final ClientConfig config = new ClientConfig();
config.connectorProvider(new JettyConnectorProvider());
config.property(ClientProperties.PROXY_URI, proxyURI);
config.property(ClientProperties.PROXY_USERNAME, user);
config.property(ClientProperties.PROXY_PASSWORD, password);
clientBuilder.withConfig(config);
this.restClient = this.clientBuilder.build();
need help, please let me know if i am missing out something.
I can not use ApacheConnectorProvider as it has dependency on Apache HttpClient 4.x and this may require big changes for my system and this is a production issue.
I'm still a newbie in Apache Spark dev.
I'm using apache spark to query data from google ads words using spark-google-adwords. But, I always got this org.apache.axis.AxisFault: (404)Not Found
I'm using Scala 2.11 and latest stable Apache Spark. I've tried to look for the solution for this problem, but I still couldn't find out the cause.
Regards,
This issue was resolved by adding a copy of axis2.xml to classpath and overriding few connection manager params as follows:
HttpConnectionManagerParams params = new HttpConnectionManagerParams();
params.setDefaultMaxConnectionsPerHost(20); //SET VALUE BASED ON YOUR REQUIREMENTS/LOAD TESTING etc
MultiThreadedHttpConnectionManager multiThreadedHttpConnectionManager = new MultiThreadedHttpConnectionManager();
multiThreadedHttpConnectionManager.setParams(params);
HttpClient httpClient = new HttpClient(multiThreadedHttpConnectionManager);
ConfigurationContext configurationContext = ConfigurationContextFactory.createConfigurationContextFromFileSystem("**PATH TO COPY OF AXIS2.XML**");
configurationContext.setProperty(HTTPConstants.CACHED_HTTP_CLIENT, httpClient);
credit : https://issues.apache.org/jira/browse/AXIS2-4807