Hi All i have downloaded the below code from AWS in order to index the data to my elasticsearch service but it has end up with error i am unable to build the code.
package com.Lambda.dynamodb;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequestInterceptor;
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import com.amazonaws.auth.AWS4Signer;
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.DefaultAWSCredentialsProviderChain;
import com.amazonaws.http.AWSRequestSigningApacheInterceptor;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
public class AmazonElasticsearchServiceSample {
private static String serviceName = "es";
private static String region = "us-west-1";
private static String aesEndpoint = ""; // e.g. https://search-mydomain.us-west-1.es.amazonaws.com
private static String index = "my-index";
private static String type = "_doc";
private static String id = "1";
static final AWSCredentialsProvider credentialsProvider = new DefaultAWSCredentialsProviderChain();
public static void main(String[] args) throws IOException {
RestHighLevelClient esClient = esClient(serviceName, region);
// Create the document as a hash map
Map<String, Object> document = new HashMap<>();
document.put("title", "Walk the Line");
document.put("director", "James Mangold");
document.put("year", "2005");
// Form the indexing request, send it, and print the response
IndexRequest request = new IndexRequest(index, type, id).source(document);
IndexResponse response = esClient.index(request, RequestOptions.DEFAULT);
System.out.println(response.toString());
}
// Adds the interceptor to the ES REST client
public static RestHighLevelClient esClient(String serviceName, String region) {
AWS4Signer signer = new AWS4Signer();
signer.setServiceName(serviceName);
signer.setRegionName(region);
HttpRequestInterceptor interceptor = new AWSRequestSigningApacheInterceptor(serviceName, signer, credentialsProvider);
return new RestHighLevelClient(RestClient.builder(HttpHost.create(aesEndpoint)).setHttpClientConfigCallback(hacb -> hacb.addInterceptorLast(interceptor)));
}
}
Error
Cannot resolve AWSRequestSigningApacheInterceptor
I have tried multiple maven dependency but still it is not resolved
Could any one please suggest how to resolve this?
Create a class file and place this code. this will do the rest
import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.Signer;
import com.amazonaws.http.HttpMethodName;
import org.apache.http.Header;
import org.apache.http.HttpEntityEnclosingRequest;
import org.apache.http.HttpException;
import org.apache.http.HttpHost;
import org.apache.http.HttpRequest;
import org.apache.http.HttpRequestInterceptor;
import org.apache.http.NameValuePair;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.entity.BasicHttpEntity;
import org.apache.http.message.BasicHeader;
import org.apache.http.protocol.HttpContext;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import static org.apache.http.protocol.HttpCoreContext.HTTP_TARGET_HOST;
/**
* An {@link HttpRequestInterceptor} that signs requests using any AWS {@link Signer}
* and {@link AWSCredentialsProvider}.
*/
public class AWSRequestSigningApacheInterceptor implements HttpRequestInterceptor {
/**
* The service that we're connecting to. Technically not necessary.
* Could be used by a future Signer, though.
*/
private final String service;
/**
* The particular signer implementation.
*/
private final Signer signer;
/**
* The source of AWS credentials for signing.
*/
private final AWSCredentialsProvider awsCredentialsProvider;
/**
*
* @param service service that we're connecting to
* @param signer particular signer implementation
* @param awsCredentialsProvider source of AWS credentials for signing
*/
public AWSRequestSigningApacheInterceptor(final String service,
final Signer signer,
final AWSCredentialsProvider awsCredentialsProvider) {
this.service = service;
this.signer = signer;
this.awsCredentialsProvider = awsCredentialsProvider;
}
/**
* {@inheritDoc}
*/
@Override
public void process(final HttpRequest request, final HttpContext context)
throws HttpException, IOException {
URIBuilder uriBuilder;
try {
uriBuilder = new URIBuilder(request.getRequestLine().getUri());
} catch (URISyntaxException e) {
throw new IOException("Invalid URI" , e);
}
// Copy Apache HttpRequest to AWS DefaultRequest
DefaultRequest<?> signableRequest = new DefaultRequest<>(service);
HttpHost host = (HttpHost) context.getAttribute(HTTP_TARGET_HOST);
if (host != null) {
signableRequest.setEndpoint(URI.create(host.toURI()));
}
final HttpMethodName httpMethod =
HttpMethodName.fromValue(request.getRequestLine().getMethod());
signableRequest.setHttpMethod(httpMethod);
try {
signableRequest.setResourcePath(uriBuilder.build().getRawPath());
} catch (URISyntaxException e) {
throw new IOException("Invalid URI" , e);
}
if (request instanceof HttpEntityEnclosingRequest) {
HttpEntityEnclosingRequest httpEntityEnclosingRequest =
(HttpEntityEnclosingRequest) request;
if (httpEntityEnclosingRequest.getEntity() != null) {
signableRequest.setContent(httpEntityEnclosingRequest.getEntity().getContent());
}
}
signableRequest.setParameters(nvpToMapParams(uriBuilder.getQueryParams()));
signableRequest.setHeaders(headerArrayToMap(request.getAllHeaders()));
// Sign it
signer.sign(signableRequest, awsCredentialsProvider.getCredentials());
// Now copy everything back
request.setHeaders(mapToHeaderArray(signableRequest.getHeaders()));
if (request instanceof HttpEntityEnclosingRequest) {
HttpEntityEnclosingRequest httpEntityEnclosingRequest =
(HttpEntityEnclosingRequest) request;
if (httpEntityEnclosingRequest.getEntity() != null) {
BasicHttpEntity basicHttpEntity = new BasicHttpEntity();
basicHttpEntity.setContent(signableRequest.getContent());
httpEntityEnclosingRequest.setEntity(basicHttpEntity);
}
}
}
/**
*
* @param params list of HTTP query params as NameValuePairs
* @return a multimap of HTTP query params
*/
private static Map<String, List<String>> nvpToMapParams(final List<NameValuePair> params) {
Map<String, List<String>> parameterMap = new TreeMap<>(String.CASE_INSENSITIVE_ORDER);
for (NameValuePair nvp : params) {
List<String> argsList =
parameterMap.computeIfAbsent(nvp.getName(), k -> new ArrayList<>());
argsList.add(nvp.getValue());
}
return parameterMap;
}
/**
* @param headers modeled Header objects
* @return a Map of header entries
*/
private static Map<String, String> headerArrayToMap(final Header[] headers) {
Map<String, String> headersMap = new TreeMap<>(String.CASE_INSENSITIVE_ORDER);
for (Header header : headers) {
if (!skipHeader(header)) {
headersMap.put(header.getName(), header.getValue());
}
}
return headersMap;
}
/**
* @param header header line to check
* @return true if the given header should be excluded when signing
*/
private static boolean skipHeader(final Header header) {
return ("content-length".equalsIgnoreCase(header.getName())
&& "0".equals(header.getValue())) // Strip Content-Length: 0
|| "host".equalsIgnoreCase(header.getName()); // Host comes from endpoint
}
/**
* @param mapHeaders Map of header entries
* @return modeled Header objects
*/
private static Header[] mapToHeaderArray(final Map<String, String> mapHeaders) {
Header[] headers = new Header[mapHeaders.size()];
int i = 0;
for (Map.Entry<String, String> headerEntry : mapHeaders.entrySet()) {
headers[i++] = new BasicHeader(headerEntry.getKey(), headerEntry.getValue());
}
return headers;
}
}
This code can be found here: https://github.com/awsdocs/amazon-opensearch-service-developer-guide/blob/master/sample_code/java/amazon-opensearch-docs-sample-client.zip