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A collection of domain classes to ease integrations with PagSeguro Api
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/*
* 2007-2016 [PagSeguro Internet Ltda.]
*
* NOTICE OF LICENSE
*
* 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.
*
* Copyright: 2007-2016 PagSeguro Internet Ltda.
* Licence: http://www.apache.org/licenses/LICENSE-2.0
*/
package br.com.uol.pagseguro.api.http;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import br.com.uol.pagseguro.api.utils.logging.Log;
import br.com.uol.pagseguro.api.utils.logging.LoggerFactory;
/**
* JSE Http client.
* Responsible for communicating with the api.
*
* @author PagSeguro Internet Ltda.
*/
public class JSEHttpClient implements HttpClient {
private static Log LOGGER = LoggerFactory.getLogger(JSEHttpClient.class.getName());
private static String DEFAULT_RESPONSE_CHARSET = "ISO-8859-1";
private final static String LIB_VERSION = "4.2.0";
/**
* Execute the communication with api.
*
* @param method Http method
* @param targetURL target url
* @param headers Headers
* @param body Body
* @return Http Response
*/
@Override
public HttpResponse execute(HttpMethod method, String targetURL, Map headers,
HttpRequestBody body) throws IOException {
LOGGER.info(String.format("Executando [%s] em [%s]", method.toString(), targetURL));
HttpURLConnection connection = null;
try {
final URL url = new URL(targetURL);
LOGGER.info("Abrindo conexao");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod(method.toString());
connection.setUseCaches(false);
writeHeaders(connection, headers);
LOGGER.info("Escrevendo body");
writeBody(connection, body);
// le response response
final String responseCharset = getResponseCharset(connection);
LOGGER.info("Lendo resposta");
final InputStream responseStream = getResponseStream(connection);
final String responseString = getResponseString(responseStream, responseCharset);
return new HttpResponse(connection.getResponseCode(), responseString);
} finally {
if (connection != null) {
LOGGER.info("Fechando conexao");
connection.disconnect();
}
}
}
/**
* Execute the communication with api.
*
* @param method Http method
* @param targetURL target url
* @param headers Headers
* @param body Body
* @return Http Response
*/
@Override
public HttpResponse executeXML(HttpMethod method, String targetURL, Map headers,
HttpXMLRequestBody body) throws IOException {
LOGGER.info(String.format("Executando [%s] em [%s]", method.toString(), targetURL));
HttpURLConnection connection = null;
try {
final URL url = new URL(targetURL);
LOGGER.info("Abrindo conexao");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod(method.toString());
connection.setUseCaches(false);
writeHeaders(connection, headers);
LOGGER.info("Escrevendo body");
writeBody(connection, body);
// le response response
final String responseCharset = getResponseCharset(connection);
LOGGER.info("Lendo resposta");
final InputStream responseStream = getResponseStream(connection);
final String responseString = getResponseString(responseStream, responseCharset);
return new HttpResponse(connection.getResponseCode(), responseString);
} finally {
if (connection != null) {
LOGGER.info("Fechando conexao");
connection.disconnect();
}
}
}
/**
* Execute the communication with api.
*
* @param method Http method
* @param targetURL target url
* @param headers Headers
* @param body Body
* @return Http Response
*/
@Override
public HttpResponse executeJson(HttpMethod method, String targetURL, Map headers,
HttpJsonRequestBody body) throws IOException {
LOGGER.info(String.format("Executando [%s] em [%s]", method.toString(), targetURL));
HttpURLConnection connection = null;
try {
final URL url = new URL(targetURL);
LOGGER.info("Abrindo conexao");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod(method.toString());
connection.setUseCaches(false);
writeHeaders(connection, headers);
LOGGER.info("Escrevendo body");
writeBody(connection, body);
// le response response
final String responseCharset = getResponseCharset(connection);
LOGGER.info("Lendo resposta");
final InputStream responseStream = getResponseStream(connection);
final String responseString = getResponseString(responseStream, responseCharset);
return new HttpResponse(connection.getResponseCode(), responseString);
} finally {
if (connection != null) {
LOGGER.info("Fechando conexao");
connection.disconnect();
}
}
}
//@TODO: documentar e ver se o cancel ainda funciona
public HttpResponse execute(HttpMethod method, String targetURL, Map headers) throws IOException {
LOGGER.info(String.format("Executando [%s] em [%s]", method.toString(), targetURL));
HttpURLConnection connection = null;
try {
final URL url = new URL(targetURL);
LOGGER.info("Abrindo conexao");
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod(method.toString());
connection.setUseCaches(false);
writeHeaders(connection, headers);
// le response response
final String responseCharset = getResponseCharset(connection);
LOGGER.info("Lendo resposta");
final InputStream responseStream = getResponseStream(connection);
final String responseString = getResponseString(responseStream, responseCharset);
return new HttpResponse(connection.getResponseCode(), responseString);
} finally {
if (connection != null) {
LOGGER.info("Fechando conexao");
connection.disconnect();
}
}
}
/**
* Write headers on request
*
* @param connection Connection
* @param headers Headers
*/
private static void writeHeaders(HttpURLConnection connection, Map headers) {
if (headers == null) {
headers = new HashMap();
}
headers.put("lib-description", "java:" + LIB_VERSION);
headers.put("language-engine-description", "java:" + System.getProperty("java.version"));
for (Entry e : headers.entrySet()) {
connection.setRequestProperty(e.getKey(), e.getValue());
}
}
/**
* Write body on request
*
* @param connection Connection
* @param body Body
*/
private static void writeBody(HttpURLConnection connection, HttpRequestBody body) throws
IOException {
if (body == null) {
return;
}
final String charset = body.getCharset();
final String content = body.getContent();
//connection.setRequestProperty("Content-Type", body.getContentTypeWithCharset());
//connection.setRequestProperty("Content-Length", Integer.toString(content.getBytes(charset).length));
connection.setDoOutput(true);
DataOutputStream wr = null;
BufferedWriter buffWr = null;
try {
wr = new DataOutputStream(connection.getOutputStream());
buffWr = new BufferedWriter(new OutputStreamWriter(wr, charset));
buffWr.write(content);
} finally {
if (buffWr != null) {
buffWr.close();
}
if (wr != null) {
wr.close();
}
}
}
/**
* Write body on request
*
* @param connection Connection
* @param body Body
*/
private static void writeBody(HttpURLConnection connection, HttpXMLRequestBody body) throws
IOException {
if (body == null) {
return;
}
final String charset = body.getCharset();
final String content = body.getContent();
//connection.setRequestProperty("Content-Type", body.getContentTypeWithCharset());
//connection.setRequestProperty("Content-Length", Integer.toString(content.getBytes(charset).length));
connection.setDoOutput(true);
DataOutputStream wr = null;
BufferedWriter buffWr = null;
try {
wr = new DataOutputStream(connection.getOutputStream());
buffWr = new BufferedWriter(new OutputStreamWriter(wr, charset));
buffWr.write(content);
} finally {
if (buffWr != null) {
buffWr.close();
}
if (wr != null) {
wr.close();
}
}
}
/**
* Write body on request
*
* @param connection Connection
* @param body Body
*/
private static void writeBody(HttpURLConnection connection, HttpJsonRequestBody body) throws
IOException {
if (body == null) {
return;
}
final String charset = body.getCharset();
final String content = body.getContent();
//connection.setRequestProperty("Content-Type", body.getContentTypeWithCharset());
//connection.setRequestProperty("Content-Length", Integer.toString(content.getBytes(charset).length));
connection.setDoOutput(true);
DataOutputStream wr = null;
BufferedWriter buffWr = null;
try {
wr = new DataOutputStream(connection.getOutputStream());
buffWr = new BufferedWriter(new OutputStreamWriter(wr, charset));
buffWr.write(content);
} finally {
if (buffWr != null) {
buffWr.close();
}
if (wr != null) {
wr.close();
}
}
}
/**
* Get response as string
*
* @param responseStream Response Stream
* @param responseCharset Response charset
* @return Response string
*/
private static String getResponseString(InputStream responseStream, String responseCharset) throws
IOException {
if (responseStream == null || responseCharset == null) {
throw new IllegalArgumentException();
}
BufferedReader rd = null;
try {
rd = new BufferedReader(new InputStreamReader(responseStream, responseCharset));
final StringBuilder responseString = new StringBuilder();
String line;
while ((line = rd.readLine()) != null) {
responseString.append(line);
}
return responseString.toString();
} finally {
if (rd != null) {
rd.close();
}
}
}
/**
* Get response stream
*
* @param connection Connection
* @return Input Stream
*/
private static InputStream getResponseStream(HttpURLConnection connection) throws IOException {
if (connection == null) {
throw new IllegalArgumentException();
}
InputStream errorStream = connection.getErrorStream();
if (errorStream != null) {
return errorStream;
}
return connection.getInputStream();
}
/**
* Get response charset
*
* @param connection Coonection
* @return Response charset
*/
private static String getResponseCharset(HttpURLConnection connection) {
if (connection == null) {
throw new IllegalArgumentException();
}
final String contentType = connection.getContentType();
if (contentType == null) {
return DEFAULT_RESPONSE_CHARSET;
}
final String[] values = contentType.split(";");
if (values == null) {
return DEFAULT_RESPONSE_CHARSET;
}
for (String value : values) {
value = value.trim();
if (value.toLowerCase().startsWith("charset=")) {
return value.substring("charset=".length());
}
}
return DEFAULT_RESPONSE_CHARSET;
}
}