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Cloudinary is a cloud service that offers a solution to a web application's entire image management pipeline. Upload images to the cloud. Automatically perform smart image resizing, cropping and conversion without installing any complex software. Integrate Facebook or Twitter profile image extraction in a snap, in any dimension and style to match your websiteâs graphics requirements. Images are seamlessly delivered through a fast CDN, and much much more. This Java library allows to easily integrate with Cloudinary in Java applications.
package com.cloudinary.http43;
import com.cloudinary.Api;
import com.cloudinary.Api.HttpMethod;
import com.cloudinary.Cloudinary;
import com.cloudinary.api.ApiResponse;
import com.cloudinary.api.exceptions.GeneralError;
import com.cloudinary.http43.api.Response;
import com.cloudinary.utils.Base64Coder;
import com.cloudinary.utils.ObjectUtils;
import com.cloudinary.utils.StringUtils;
import org.apache.http.Consts;
import org.apache.http.HttpHost;
import org.apache.http.NameValuePair;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.*;
import org.apache.http.client.utils.URIBuilder;
import org.apache.http.conn.HttpClientConnectionManager;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.cloudinary.json.JSONException;
import org.cloudinary.json.JSONObject;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.Constructor;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Arrays;
import java.util.List;
import java.util.HashMap;
import java.util.Map;
import static com.cloudinary.http43.ApiUtils.prepareParams;
import static com.cloudinary.http43.ApiUtils.setTimeouts;
public class ApiStrategy extends com.cloudinary.strategies.AbstractApiStrategy {
private CloseableHttpClient client = null;
@Override
public void init(Api api) {
super.init(api);
HttpClientBuilder clientBuilder = HttpClients.custom();
clientBuilder.useSystemProperties().setUserAgent(Cloudinary.USER_AGENT + " ApacheHTTPComponents/4.3");
// If the configuration specifies a proxy then apply it to the client
if (api.cloudinary.config.proxyHost != null && api.cloudinary.config.proxyPort != 0) {
HttpHost proxy = new HttpHost(api.cloudinary.config.proxyHost, api.cloudinary.config.proxyPort);
clientBuilder.setProxy(proxy);
}
HttpClientConnectionManager connectionManager = (HttpClientConnectionManager) api.cloudinary.config.properties.get("connectionManager");
if (connectionManager != null) {
clientBuilder.setConnectionManager(connectionManager);
}
int timeout = this.api.cloudinary.config.timeout;
if (timeout > 0) {
RequestConfig config = RequestConfig.custom()
.setSocketTimeout(timeout * 1000)
.setConnectTimeout(timeout * 1000)
.build();
clientBuilder.setDefaultRequestConfig(config);
}
this.client = clientBuilder.build();
}
@SuppressWarnings({"rawtypes", "unchecked"})
public ApiResponse callApi(HttpMethod method, Iterable uri, Map params, Map options) throws Exception {
if (options == null)
options = ObjectUtils.emptyMap();
String prefix = ObjectUtils.asString(options.get("upload_prefix"), ObjectUtils.asString(this.api.cloudinary.config.uploadPrefix, "https://api.cloudinary.com"));
String cloudName = ObjectUtils.asString(options.get("cloud_name"), this.api.cloudinary.config.cloudName);
if (cloudName == null) throw new IllegalArgumentException("Must supply cloud_name");
String apiKey = ObjectUtils.asString(options.get("api_key"), this.api.cloudinary.config.apiKey);
if (apiKey == null) throw new IllegalArgumentException("Must supply api_key");
String apiSecret = ObjectUtils.asString(options.get("api_secret"), this.api.cloudinary.config.apiSecret);
if (apiSecret == null) throw new IllegalArgumentException("Must supply api_secret");
String apiUrl = StringUtils.join(Arrays.asList(prefix, "v1_1", cloudName), "/");
for (String component : uri) {
apiUrl = apiUrl + "/" + component;
}
HttpUriRequest request = prepareRequest(method, apiUrl, params, options);
request.setHeader("Authorization", "Basic " + Base64Coder.encodeString(apiKey + ":" + apiSecret));
String responseData = null;
int code = 0;
CloseableHttpResponse response = client.execute(request);
try {
code = response.getStatusLine().getStatusCode();
InputStream responseStream = response.getEntity().getContent();
responseData = StringUtils.read(responseStream);
} finally {
response.close();
}
Class exceptionClass = Api.CLOUDINARY_API_ERROR_CLASSES.get(code);
if (code != 200 && exceptionClass == null) {
throw new GeneralError("Server returned unexpected status code - " + code + " - " + responseData);
}
Map result;
try {
JSONObject responseJSON = new JSONObject(responseData);
result = ObjectUtils.toMap(responseJSON);
} catch (JSONException e) {
throw new RuntimeException("Invalid JSON response from server " + e.getMessage());
}
if (code == 200) {
return new Response(response, result);
} else {
String message = (String) ((Map) result.get("error")).get("message");
Constructor exceptionConstructor = exceptionClass.getConstructor(String.class);
throw exceptionConstructor.newInstance(message);
}
}
/**
* Prepare a request with the URL and parameters based on the HTTP method used
*
* @param method the HTTP method: GET, PUT, POST, DELETE
* @param apiUrl the cloudinary API URI
* @param params the parameters to pass to the server
* @return an HTTP request
* @throws URISyntaxException
* @throws UnsupportedEncodingException
*/
private HttpUriRequest prepareRequest(HttpMethod method, String apiUrl, Map params, Map options) throws URISyntaxException, UnsupportedEncodingException {
URI apiUri;
HttpRequestBase request;
String contentType = ObjectUtils.asString(options.get("content_type"), "urlencoded");
URIBuilder apiUrlBuilder = new URIBuilder(apiUrl);
HashMap unboxedParams = new HashMap(params);
if (method == HttpMethod.GET) {
apiUrlBuilder.setParameters(prepareParams(params));
apiUri = apiUrlBuilder.build();
request = new HttpGet(apiUri);
} else {
apiUri = apiUrlBuilder.build();
switch (method) {
case PUT:
request = new HttpPut(apiUri);
break;
case DELETE: //uses HttpPost instead of HttpDelete
unboxedParams.put("_method","delete");
//continue with POST
case POST:
request = new HttpPost(apiUri);
break;
default:
throw new IllegalArgumentException("Unknown HTTP method");
}
if (contentType.equals("json")) {
JSONObject asJSON = ObjectUtils.toJSON(unboxedParams);
StringEntity requestEntity = new StringEntity(asJSON.toString(), ContentType.APPLICATION_JSON);
((HttpEntityEnclosingRequestBase) request).setEntity(requestEntity);
} else {
((HttpEntityEnclosingRequestBase) request).setEntity(new UrlEncodedFormEntity(prepareParams(unboxedParams), Consts.UTF_8));
}
}
setTimeouts(request, options);
return request;
}
}