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Java SDK for working with the Codota API
/*
* Copyright (C) 2016 Codota
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.codota.service.connector;
import com.codota.service.client.CodotaResponse;
import com.codota.service.client.requests.base.GetRequest;
import com.codota.service.client.requests.base.PutRequest;
import com.codota.service.client.requests.base.Request;
import org.apache.http.HttpRequest;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpEntityEnclosingRequestBase;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.message.BasicNameValuePair;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URI;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
@SuppressWarnings("UnusedDeclaration")
public class ApacheServiceConnector extends ServiceConnector {
private static final int TIMEOUT_SECONDS = 30;
private static final RequestConfig config = RequestConfig.custom()
.setSocketTimeout(TIMEOUT_SECONDS * 1000)
.setConnectTimeout(TIMEOUT_SECONDS * 1000)
.build();
// the single httpclient of the entire system
private static final HttpClient client = HttpClientBuilder.create().setDefaultRequestConfig(config).build();
protected static ApacheServiceConnector instance;
public ApacheServiceConnector(String base) {
super(base);
}
public static ServiceConnector instance() {
if (instance == null) {
instance = new ApacheServiceConnector(ConnectorSettings.getDefaultBase());
}
return instance;
}
@Nullable
public CodotaResponse getByURI(String uri, @Nullable String token) {
tracker.init(this.getClass());
HttpGet request = new HttpGet(uri);
addFrameworkHeaders(request, token);
tracker.connected();
HttpResponse response;
try {
response = client.execute(request);
} catch (IOException e) {
ConnectorSettings.LOG.warn("getByURI failed " + e);
return null;
}
tracker.gotResponse();
String content;
try {
content = consumeResponse(response);
} catch (IOException e) {
e.printStackTrace();
return null;
}
CodotaResponse result;
if (response.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_OK) {
// set the actual result
result = new CodotaResponse(content, HttpURLConnection.HTTP_OK);
} else if (response.getStatusLine().getStatusCode() == HttpURLConnection.HTTP_UNAUTHORIZED) {
result = new CodotaResponse(null,
HttpURLConnection.HTTP_UNAUTHORIZED);
} else {
result = new CodotaResponse(null, response.getStatusLine()
.getStatusCode());
}
tracker.finished();
return result;
}
@Nullable
@Override
public CodotaResponse postJson(String route, @NotNull String jsonString,
@Nullable String token) {
HttpPost post = new HttpPost(route);
post.addHeader("content-type", "application/json");
CodotaResponse result = null;
try {
post.setEntity(new StringEntity(jsonString));
addFrameworkHeaders(post, token);
HttpResponse response = client.execute(post);
String content = consumeResponse(response);
result = new CodotaResponse(content, response.getStatusLine()
.getStatusCode());
} catch (IOException e) {
ConnectorSettings.LOG.warn("postJson failed " + e);
e.printStackTrace();
}
return result;
}
@Override
public CodotaResponse put(PutRequest request) {
final HttpPut httpPut = new HttpPut();
if (request.getBodyJsonString() != null) {
httpPut.addHeader("content-type", "application/json");
httpPut.setEntity(new StringEntity(request.getBodyJsonString(), UTF8));
}
return httpEntityEnclosingRequestBase(httpPut, request);
}
@Override
public CodotaResponse post(Request request) {
return httpEntityEnclosingRequestBase(new HttpPost(), request);
}
private CodotaResponse httpEntityEnclosingRequestBase(HttpEntityEnclosingRequestBase httpRequest, Request request) {
CodotaResponse result = null;
try {
httpRequest.setURI(URI.create(getURI(request.getRoute(), "", request.getQueryParameters())));
if (httpRequest.getEntity() == null) {
addEncodedBodyAttributes(httpRequest, request.getBodyAttributes());
}
addFrameworkHeaders(httpRequest, request.getToken());
addRequestHeaders(httpRequest, request);
HttpResponse response = client.execute(httpRequest);
String content = consumeResponse(response);
result = new CodotaResponse(content, response.getStatusLine()
.getStatusCode());
} catch (IOException e) {
ConnectorSettings.LOG.warn(httpRequest.getMethod() + " failed " + e);
e.printStackTrace();
}
return result;
}
@Override
public CodotaResponse get(GetRequest request) {
try {
return getByURI(getURI(request.getRoute(), request.getQuery(), request.getQueryParameters()), request.getToken());
} catch (IOException e) {
e.printStackTrace();
ConnectorSettings.LOG.warn("get failed " + e);
return null;
}
}
private void addFrameworkHeaders(HttpRequest request, String token) {
request.addHeader("User-Agent", ConnectorSettings.USER_AGENT);
if (token != null) {
request.addHeader(AUTH_ATTR, "bearer " + token);
}
request.addHeader(ORIGIN_ATTR, ORIGIN);
if (ConnectorSettings.getClientVersion() != null) {
request.addHeader(CLIENT_ATTR, ConnectorSettings.getClientVersion());
}
}
private void addRequestHeaders(HttpRequest httpRequest, Request request) {
for (Map.Entry headerEntry : request.getHeaderAttributes().entrySet()) {
httpRequest.addHeader(headerEntry.getKey(), headerEntry.getValue());
}
}
public void addEncodedBodyAttributes(HttpEntityEnclosingRequestBase request, Map attributes) {
List nameValuePairs = new ArrayList(1);
for (String key : attributes.keySet()) {
String value = attributes.get(key);
BasicNameValuePair bvp = new BasicNameValuePair(key, value);
nameValuePairs.add(bvp);
}
request.setEntity(new UrlEncodedFormEntity(nameValuePairs, UTF8));
}
@Nullable
@Override
public CodotaResponse post(String route, @NotNull Map attributes,
@Nullable String token) {
HttpPost post = new HttpPost(route);
CodotaResponse result = null;
try {
addEncodedBodyAttributes(post, attributes);
addFrameworkHeaders(post, token);
HttpResponse response = client.execute(post);
String content = consumeResponse(response);
result = new CodotaResponse(content, response.getStatusLine()
.getStatusCode());
} catch (IOException e) {
ConnectorSettings.LOG.warn("post failed " + e);
e.printStackTrace();
}
return result;
}
@SuppressWarnings("EmptyMethod")
public void close() {
// client.close();
}
}
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