Example usage for java.net HttpURLConnection getErrorStream

Introduction

In this page you can find the example usage for java.net HttpURLConnection getErrorStream.

Prototype

public InputStream getErrorStream() 

Source Link

Document

Returns the error stream if the connection failed but the server sent useful data nonetheless.

Usage

From source file:org.wso2.charon3.samples.group.sample01.CreateGroupSample.java

public static void main(String[] args) {
    try {//from ww  w  .ja v a2  s.co m
        String url = "http://localhost:8080/scim/v2/Groups";
        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // Setting basic post request
        con.setRequestMethod("POST");
        con.setRequestProperty("Content-Type", "application/scim+json");

        // Send post request
        con.setDoOutput(true);
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(createRequestBody);
        wr.flush();
        wr.close();

        int responseCode = con.getResponseCode();

        BufferedReader in;
        if (responseCode == HttpURLConnection.HTTP_CREATED) { // success
            in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        } else {
            in = new BufferedReader(new InputStreamReader(con.getErrorStream()));
        }
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        //printing result from response
        System.out.println("Response Code : " + responseCode);
        System.out.println("Response Message : " + con.getResponseMessage());
        System.out.println("Response Content : " + response.toString());

    } catch (ProtocolException e) {
        e.printStackTrace();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

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From source file:org.wso2.charon3.samples.user.sample01.CreateUserSample.java

public static void main(String[] args) {
    try {/*from  w  ww. j a  va  2  s .c  o m*/
        String url = "http://localhost:8080/scim/v2/Users";
        URL obj = new URL(url);
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();

        // Setting basic post request
        con.setRequestMethod("POST");
        con.setRequestProperty("Content-Type", "application/scim+json");

        // Send post request
        con.setDoOutput(true);
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(createRequestBody);
        wr.flush();
        wr.close();

        int responseCode = con.getResponseCode();

        BufferedReader in;
        if (responseCode == HttpURLConnection.HTTP_CREATED) { // success
            in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        } else {
            in = new BufferedReader(new InputStreamReader(con.getErrorStream()));
        }
        String inputLine;
        StringBuffer response = new StringBuffer();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();

        //printing result from response
        System.out.println("Response Code : " + responseCode);
        System.out.println("Response Message : " + con.getResponseMessage());
        System.out.println("Response Content : " + response.toString());

    } catch (ProtocolException e) {
        e.printStackTrace();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

---

From source file:OCRRestAPI.java

public static void main(String[] args) throws Exception {
    /*/*from ww w . j a v a 2  s. c om*/
              
         Sample project for OCRWebService.com (REST API).
         Extract text from scanned images and convert into editable formats.
         Please create new account with ocrwebservice.com via http://www.ocrwebservice.com/account/signup and get license code
            
     */

    // Provide your user name and license code
    String license_code = "88EF173D-CDEA-41B6-8D64-C04578ED8C4D";
    String user_name = "FERGOID";

    /*
            
      You should specify OCR settings. See full description http://www.ocrwebservice.com/service/restguide
             
      Input parameters:
             
     [language]      - Specifies the recognition language. 
                  This parameter can contain several language names separated with commas. 
                    For example "language=english,german,spanish".
               Optional parameter. By default:english
            
     [pagerange]     - Enter page numbers and/or page ranges separated by commas. 
               For example "pagerange=1,3,5-12" or "pagerange=allpages".
                    Optional parameter. By default:allpages
             
      [tobw]           - Convert image to black and white (recommend for color image and photo). 
               For example "tobw=false"
                    Optional parameter. By default:false
             
      [zone]          - Specifies the region on the image for zonal OCR. 
               The coordinates in pixels relative to the left top corner in the following format: top:left:height:width. 
               This parameter can contain several zones separated with commas. 
                 For example "zone=0:0:100:100,50:50:50:50"
                    Optional parameter.
              
      [outputformat]  - Specifies the output file format.
                    Can be specified up to two output formats, separated with commas.
               For example "outputformat=pdf,txt"
                    Optional parameter. By default:doc
            
      [gettext]      - Specifies that extracted text will be returned.
               For example "tobw=true"
                    Optional parameter. By default:false
            
       [description]  - Specifies your task description. Will be returned in response.
                    Optional parameter. 
            
            
     !!!!  For getting result you must specify "gettext" or "outputformat" !!!!  
            
    */

    // Build your OCR:

    // Extraction text with English language
    String ocrURL = "http://www.ocrwebservice.com/restservices/processDocument?gettext=true";

    // Extraction text with English and German language using zonal OCR
    ocrURL = "http://www.ocrwebservice.com/restservices/processDocument?language=english,german&zone=0:0:600:400,500:1000:150:400";

    // Convert first 5 pages of multipage document into doc and txt
    // ocrURL = "http://www.ocrwebservice.com/restservices/processDocument?language=english&pagerange=1-5&outputformat=doc,txt";

    // Full path to uploaded document
    String filePath = "sarah-morgan.jpg";

    byte[] fileContent = Files.readAllBytes(Paths.get(filePath));

    URL url = new URL(ocrURL);

    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setDoOutput(true);
    connection.setDoInput(true);
    connection.setRequestMethod("POST");

    connection.setRequestProperty("Authorization",
            "Basic " + Base64.getEncoder().encodeToString((user_name + ":" + license_code).getBytes()));

    // Specify Response format to JSON or XML (application/json or application/xml)
    connection.setRequestProperty("Content-Type", "application/json");

    connection.setRequestProperty("Content-Length", Integer.toString(fileContent.length));

    int httpCode;
    try (OutputStream stream = connection.getOutputStream()) {

        // Send POST request
        stream.write(fileContent);
        stream.close();
    } catch (Exception e) {
        System.out.println(e.toString());
    }

    httpCode = connection.getResponseCode();

    System.out.println("HTTP Response code: " + httpCode);

    // Success request
    if (httpCode == HttpURLConnection.HTTP_OK) {
        // Get response stream
        String jsonResponse = GetResponseToString(connection.getInputStream());

        // Parse and print response from OCR server
        PrintOCRResponse(jsonResponse);
    } else if (httpCode == HttpURLConnection.HTTP_UNAUTHORIZED) {
        System.out.println("OCR Error Message: Unauthorizied request");
    } else {
        // Error occurred
        String jsonResponse = GetResponseToString(connection.getErrorStream());

        JSONParser parser = new JSONParser();
        JSONObject jsonObj = (JSONObject) parser.parse(jsonResponse);

        // Error message
        System.out.println("Error Message: " + jsonObj.get("ErrorMessage"));
    }

    connection.disconnect();

}

---

From source file:Main.java

/**
 * Extract the error of an HTTP response as a string.
 * @param connection the connection to read from.
 * @return the string extracted from the connection's error stream.
 * @throws Exception if any error occurs.
 *//*from  ww  w  . j a v a  2s. c  om*/
static String readErrorBody(HttpURLConnection connection) throws Exception {
    return readString(new BufferedInputStream(connection.getErrorStream()));
}

---

From source file:com.checkoutcrypto.api.HttpUtils.java

public static String getErrorResponse(HttpURLConnection urlConnection) {
    InputStream errorStream = urlConnection.getErrorStream();

    try {/*from   w w w.  j  a v  a2s.com*/
        if (errorStream != null) {
            byte[] responseBytes = getContent(errorStream).toByteArray();
            return new String(responseBytes, "UTF-8");
        }
    } catch (IOException e) {
        return "Failed to get error response: " + e.getLocalizedMessage();
    }

    return null;
}

---

From source file:org.droidparts.http.worker.HTTPInputStream.java

public static HTTPInputStream getInstance(HttpURLConnection conn, boolean useErrorStream) throws HTTPException {
    try {/* w  w  w  . j a  v  a 2s  .c o  m*/
        InputStream is = useErrorStream ? conn.getErrorStream() : conn.getInputStream();
        is = getUnpackedInputStream(conn.getContentEncoding(), is);
        return new HTTPInputStream(is, conn, null);
    } catch (Exception e) {
        throw new HTTPException(e);
    }
}

---

From source file:net.ftb.util.AppUtils.java

public static String ConnectionToString(URLConnection c) {
    boolean failed = false;
    HttpURLConnection conn = (HttpURLConnection) c;
    try {//from  w  ww .  j a v  a2  s  .c o m
        if (conn.getErrorStream() != null) {
            return IOUtils.toString(conn.getErrorStream(), Charsets.UTF_8);
        } else if (conn.getInputStream() != null) {
            return IOUtils.toString(conn.getInputStream(), Charsets.UTF_8);
        } else {
            return null;
        }
    } catch (FileNotFoundException e) {
        // ignore this
    } catch (IOException e) {
        failed = true;
    } catch (Exception e) {
        failed = true;
        Logger.logDebug("failed", e);
    }

    if (failed) {
        try {
            return IOUtils.toString(c.getInputStream(), Charsets.UTF_8);
        } catch (Exception e) {
            Logger.logDebug("failed", e);
        }
    }

    return null;
}

---

From source file:com.camel.trainreserve.JDKHttpsClient.java

protected static String getResponseAsString(HttpURLConnection conn) throws IOException {
    String charset = getResponseCharset(conn.getContentType());
    InputStream es = conn.getErrorStream();
    if (es == null) {
        return getStreamAsString(conn.getInputStream(), charset);
    } else {/*from  w  w w.  ja  v a  2s.  c  o m*/
        String msg = getStreamAsString(es, charset);
        if (StringUtils.isEmpty(msg)) {
            throw new IOException(conn.getResponseCode() + ":" + conn.getResponseMessage());
        } else {
            throw new IOException(msg);
        }
    }
}

---

From source file:com.eTilbudsavis.etasdk.network.impl.HttpURLNetwork.java

private static HttpEntity getEntity(HttpURLConnection connection) {
    BasicHttpEntity entity = new BasicHttpEntity();
    InputStream inputStream;//from  w  ww  . ja  v  a 2  s .com
    try {
        inputStream = connection.getInputStream();
    } catch (IOException ioe) {
        inputStream = connection.getErrorStream();
    }
    entity.setContent(inputStream);
    entity.setContentLength(connection.getContentLength());
    entity.setContentEncoding(connection.getContentEncoding());
    entity.setContentType(connection.getContentType());
    return entity;
}

---

From source file:com.telefonica.iot.perseo.test.Help.java

private static String getBodyResponse(HttpURLConnection con) throws IOException {
    int responseCode = con.getResponseCode();
    InputStream stream;/*from w w w.  j a v a 2  s.com*/
    if (responseCode / 100 == 2) {
        stream = con.getInputStream();
    } else {
        stream = con.getErrorStream();
    }
    if (stream != null) {
        BufferedReader in = new BufferedReader(new InputStreamReader(stream));
        String inputLine;
        StringBuilder response = new StringBuilder();

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        in.close();
        return response.toString();
    }
    return null;
}

---

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