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android.apiInvoker.mustache Maven / Gradle / Ivy
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package {{invokerPackage}};
import org.apache.http.*;
import org.apache.http.client.*;
import org.apache.http.client.methods.*;
import org.apache.http.conn.*;
import org.apache.http.conn.scheme.*;
import org.apache.http.conn.ssl.*;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.*;
import org.apache.http.impl.conn.*;
import org.apache.http.impl.conn.tsccm.*;
import org.apache.http.params.*;
import org.apache.http.util.EntityUtils;
import java.io.File;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.net.URLEncoder;
import java.util.Collection;
import java.util.Map;
import java.util.HashMap;
import java.util.List;
import java.util.ArrayList;
import java.security.GeneralSecurityException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.cert.*;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;
import java.util.Random;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import com.google.gson.JsonParseException;
public class ApiInvoker {
private static ApiInvoker INSTANCE = new ApiInvoker();
private Map defaultHeaderMap = new HashMap();
private HttpClient client = null;
private boolean ignoreSSLCertificates = false;
private ClientConnectionManager ignoreSSLConnectionManager;
/** Content type "text/plain" with UTF-8 encoding. */
public static final ContentType TEXT_PLAIN_UTF8 = ContentType.create("text/plain", Consts.UTF_8);
/**
* ISO 8601 date time format.
* @see https://en.wikipedia.org/wiki/ISO_8601
*/
public static final SimpleDateFormat DATE_TIME_FORMAT = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
/**
* ISO 8601 date format.
* @see https://en.wikipedia.org/wiki/ISO_8601
*/
public static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd");
static {
// Use UTC as the default time zone.
DATE_TIME_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
// Set default User-Agent.
setUserAgent("{{#httpUserAgent}}{{{.}}}{{/httpUserAgent}}{{^httpUserAgent}}OpenAPI-Generator/{{{artifactVersion}}}/android{{/httpUserAgent}}");
}
public static void setUserAgent(String userAgent) {
INSTANCE.addDefaultHeader("User-Agent", userAgent);
}
public static Date parseDateTime(String str) {
try {
return DATE_TIME_FORMAT.parse(str);
} catch (java.text.ParseException e) {
throw new RuntimeException(e);
}
}
public static Date parseDate(String str) {
try {
return DATE_FORMAT.parse(str);
} catch (java.text.ParseException e) {
throw new RuntimeException(e);
}
}
public static String formatDateTime(Date datetime) {
return DATE_TIME_FORMAT.format(datetime);
}
public static String formatDate(Date date) {
return DATE_FORMAT.format(date);
}
public static String parameterToString(Object param) {
if (param == null) {
return "";
} else if (param instanceof Date) {
return formatDateTime((Date) param);
} else if (param instanceof Collection) {
StringBuilder b = new StringBuilder();
for(Object o : (Collection)param) {
if(b.length() > 0) {
b.append(",");
}
b.append(String.valueOf(o));
}
return b.toString();
} else {
return String.valueOf(param);
}
}
/*
Format to {@code Pair} objects.
*/
public static List parameterToPairs(String collectionFormat, String name, Object value){
List params = new ArrayList();
// preconditions
if (name == null || name.isEmpty() || value == null) return params;
Collection valueCollection = null;
if (value instanceof Collection) {
valueCollection = (Collection) value;
} else {
params.add(new Pair(name, parameterToString(value)));
return params;
}
if (valueCollection.isEmpty()){
return params;
}
// get the collection format
collectionFormat = (collectionFormat == null || collectionFormat.isEmpty() ? "csv" : collectionFormat); // default: csv
// create the params based on the collection format
if (collectionFormat.equals("multi")) {
for (Object item : valueCollection) {
params.add(new Pair(name, parameterToString(item)));
}
return params;
}
String delimiter = ",";
if (collectionFormat.equals("csv")) {
delimiter = ",";
} else if (collectionFormat.equals("ssv")) {
delimiter = " ";
} else if (collectionFormat.equals("tsv")) {
delimiter = "\t";
} else if (collectionFormat.equals("pipes")) {
delimiter = "|";
}
StringBuilder sb = new StringBuilder() ;
for (Object item : valueCollection) {
sb.append(delimiter);
sb.append(parameterToString(item));
}
params.add(new Pair(name, sb.substring(1)));
return params;
}
public ApiInvoker() {
initConnectionManager();
}
public static ApiInvoker getInstance() {
return INSTANCE;
}
public void ignoreSSLCertificates(boolean ignoreSSLCertificates) {
this.ignoreSSLCertificates = ignoreSSLCertificates;
}
public void addDefaultHeader(String key, String value) {
defaultHeaderMap.put(key, value);
}
public String escapeString(String str) {
try {
return URLEncoder.encode(str, "UTF-8");
} catch (UnsupportedEncodingException e) {
return str;
}
}
public static Object deserialize(String json, String containerType, Class cls) throws ApiException {
try{
if("list".equalsIgnoreCase(containerType) || "array".equalsIgnoreCase(containerType)) {
return JsonUtil.deserializeToList(json, cls);
}
else if(String.class.equals(cls)) {
if(json != null && json.startsWith("\"") && json.endsWith("\"") && json.length() > 1)
return json.substring(1, json.length() - 1);
else
return json;
}
else {
return JsonUtil.deserializeToObject(json, cls);
}
}
catch (JsonParseException e) {
throw new ApiException(500, e.getMessage());
}
}
public static String serialize(Object obj) throws ApiException {
try {
if (obj != null)
return JsonUtil.serialize(obj);
else
return null;
}
catch (Exception e) {
throw new ApiException(500, e.getMessage());
}
}
public String invokeAPI(String host, String path, String method, List queryParams, Object body, Map headerParams, Map formParams, String contentType) throws ApiException {
HttpClient client = getClient(host);
StringBuilder b = new StringBuilder();
b.append("?");
if (queryParams != null){
for (Pair queryParam : queryParams){
if (!queryParam.getName().isEmpty()) {
b.append(escapeString(queryParam.getName()));
b.append("=");
b.append(escapeString(queryParam.getValue()));
b.append("&");
}
}
}
String querystring = b.substring(0, b.length() - 1);
String url = host + path + querystring;
HashMap headers = new HashMap();
for(String key : headerParams.keySet()) {
headers.put(key, headerParams.get(key));
}
for(String key : defaultHeaderMap.keySet()) {
if(!headerParams.containsKey(key)) {
headers.put(key, defaultHeaderMap.get(key));
}
}
headers.put("Accept", "application/json");
// URL encoded string from form parameters
String formParamStr = null;
// for form data
if ("application/x-www-form-urlencoded".equals(contentType)) {
StringBuilder formParamBuilder = new StringBuilder();
// encode the form params
for (String key : formParams.keySet()) {
String value = formParams.get(key);
if (value != null && !"".equals(value.trim())) {
if (formParamBuilder.length() > 0) {
formParamBuilder.append("&");
}
try {
formParamBuilder.append(URLEncoder.encode(key, "utf8")).append("=").append(URLEncoder.encode(value, "utf8"));
}
catch (Exception e) {
// move on to next
}
}
}
formParamStr = formParamBuilder.toString();
}
HttpResponse response = null;
try {
if ("GET".equals(method)) {
HttpGet get = new HttpGet(url);
get.addHeader("Accept", "application/json");
for(String key : headers.keySet()) {
get.setHeader(key, headers.get(key));
}
response = client.execute(get);
}
else if ("POST".equals(method)) {
HttpPost post = new HttpPost(url);
if (formParamStr != null) {
post.setHeader("Content-Type", contentType);
post.setEntity(new StringEntity(formParamStr, "UTF-8"));
} else if (body != null) {
if (body instanceof HttpEntity) {
// this is for file uploading
post.setEntity((HttpEntity) body);
} else {
post.setHeader("Content-Type", contentType);
post.setEntity(new StringEntity(serialize(body), "UTF-8"));
}
}
for(String key : headers.keySet()) {
post.setHeader(key, headers.get(key));
}
response = client.execute(post);
}
else if ("PUT".equals(method)) {
HttpPut put = new HttpPut(url);
if (formParamStr != null) {
put.setHeader("Content-Type", contentType);
put.setEntity(new StringEntity(formParamStr, "UTF-8"));
} else if (body != null) {
put.setHeader("Content-Type", contentType);
put.setEntity(new StringEntity(serialize(body), "UTF-8"));
}
for(String key : headers.keySet()) {
put.setHeader(key, headers.get(key));
}
response = client.execute(put);
}
else if ("DELETE".equals(method)) {
HttpDelete delete = new HttpDelete(url);
for(String key : headers.keySet()) {
delete.setHeader(key, headers.get(key));
}
response = client.execute(delete);
}
else if ("PATCH".equals(method)) {
HttpPatch patch = new HttpPatch(url);
if (formParamStr != null) {
patch.setHeader("Content-Type", contentType);
patch.setEntity(new StringEntity(formParamStr, "UTF-8"));
} else if (body != null) {
patch.setHeader("Content-Type", contentType);
patch.setEntity(new StringEntity(serialize(body), "UTF-8"));
}
for(String key : headers.keySet()) {
patch.setHeader(key, headers.get(key));
}
response = client.execute(patch);
}
int code = response.getStatusLine().getStatusCode();
String responseString = null;
if(code == 204) {
responseString = "";
return responseString;
}
else if(code >= 200 && code < 300) {
if(response.getEntity() != null) {
HttpEntity resEntity = response.getEntity();
responseString = EntityUtils.toString(resEntity);
}
return responseString;
}
else {
if(response.getEntity() != null) {
HttpEntity resEntity = response.getEntity();
responseString = EntityUtils.toString(resEntity);
}
else
responseString = "no data";
}
throw new ApiException(code, responseString);
}
catch(IOException e) {
throw new ApiException(500, e.getMessage());
}
}
private HttpClient getClient(String host) {
if (client == null) {
if (ignoreSSLCertificates && ignoreSSLConnectionManager != null) {
// Trust self signed certificates
client = new DefaultHttpClient(ignoreSSLConnectionManager, new BasicHttpParams());
} else {
client = new DefaultHttpClient();
}
}
return client;
}
private void initConnectionManager() {
try {
final SSLContext sslContext = SSLContext.getInstance("SSL");
// set up a TrustManager that trusts everything
TrustManager[] trustManagers = new TrustManager[] {
new X509TrustManager() {
public X509Certificate[] getAcceptedIssuers() {
return null;
}
public void checkClientTrusted(X509Certificate[] certs, String authType) {}
public void checkServerTrusted(X509Certificate[] certs, String authType) {}
}};
sslContext.init(null, trustManagers, new SecureRandom());
SSLSocketFactory sf = new SSLSocketFactory((KeyStore)null) {
private javax.net.ssl.SSLSocketFactory sslFactory = sslContext.getSocketFactory();
public Socket createSocket(Socket socket, String host, int port, boolean autoClose)
throws IOException, UnknownHostException {
return sslFactory.createSocket(socket, host, port, autoClose);
}
public Socket createSocket() throws IOException {
return sslFactory.createSocket();
}
};
sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
Scheme httpsScheme = new Scheme("https", sf, 443);
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register(httpsScheme);
schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
ignoreSSLConnectionManager = new ThreadSafeClientConnManager(new BasicHttpParams(), schemeRegistry);
} catch (NoSuchAlgorithmException e) {
// This will only be thrown if SSL isn't available for some reason.
} catch (KeyManagementException e) {
// This might be thrown when passing a key into init(), but no key is being passed.
} catch (GeneralSecurityException e) {
// This catches anything else that might go wrong.
// If anything goes wrong we default to the standard connection manager.
}
}
}
