Example usage for org.apache.commons.httpclient HttpException printStackTrace

Introduction

In this page you can find the example usage for org.apache.commons.httpclient HttpException printStackTrace.

Prototype

public void printStackTrace(PrintWriter s) 

Source Link

Document

Print this HttpException and its stack trace to the specified print writer.

Usage

From source file:org.opencms.applet.upload.FileUploadApplet.java

/**
 * Checks if the given client files exist on the server and internally stores duplications.<p>
 * //  w ww  . j  av  a 2  s.  c om
 * Comparison is made by cutting the current directory of the file chooser from the path of the given files. 
 * The server files (VFS files) to compare to are found by the current session of the user which finds the correct site and 
 * the knowledge about the current directory. File translation rules are taken into account on the server. <p>
 * 
 * @param files the local files to check if they exist in the VFS 
 * 
 * @return one of {@link ModalDialog#ERROR_OPTION} , {@link ModalDialog#CANCEL_OPTION}, {@link ModalDialog#APPROVE_OPTION}. 
 */
int checkServerOverwrites(File[] files) {

    m_action = m_actionOverwriteCheck;
    repaint();
    int rtv = ModalDialog.ERROR_OPTION;
    // collect files
    List fileNames = new ArrayList();
    for (int i = 0; i < files.length; i++) {
        getRelativeFilePaths(files[i], fileNames);
    }

    StringBuffer uploadFiles = new StringBuffer();
    Iterator it = fileNames.iterator();
    // Http post header is limited, therefore only a ceratain amount of files may be checked 
    // for server overwrites. Solution is: multiple requests. 
    int count = 0;
    List duplications;
    // request to server
    HttpClient client = new HttpClient();
    this.m_overwrites = new ArrayList();
    try {
        while (it.hasNext()) {
            count++;
            uploadFiles.append(((String) it.next())).append('\n');

            if (((count % 40) == 0) || (!it.hasNext())) {
                // files to upload:
                PostMethod post = new PostMethod(m_targetUrl);
                Header postHeader = new Header("uploadFiles",
                        URLEncoder.encode(uploadFiles.toString(), "utf-8"));
                post.addRequestHeader(postHeader);
                // upload folder in vfs: 
                Header header2 = new Header("uploadFolder",
                        URLEncoder.encode(getParameter("filelist"), "utf-8"));
                post.addRequestHeader(header2);

                // the action constant
                post.setParameter("action", DIALOG_CHECK_OVERWRITE);

                // add jsessionid query string
                String sessionId = getParameter("sessionId");
                String query = ";" + C_JSESSIONID.toLowerCase() + "=" + sessionId;
                post.setQueryString(query);
                post.addRequestHeader(C_JSESSIONID, sessionId);

                HttpConnectionParams connectionParams = client.getHttpConnectionManager().getParams();
                connectionParams.setConnectionTimeout(5000);

                // add the session cookie
                client.getState();
                client.getHostConfiguration().getHost();

                HttpState initialState = new HttpState();
                URI uri = new URI(m_targetUrl, false);
                Cookie sessionCookie = new Cookie(uri.getHost(), C_JSESSIONID, sessionId, "/", null, false);
                initialState.addCookie(sessionCookie);
                client.setState(initialState);
                int status = client.executeMethod(post);

                if (status == HttpStatus.SC_OK) {
                    String response = post.getResponseBodyAsString();
                    duplications = parseDuplicateFiles(URLDecoder.decode(response, "utf-8"));
                    this.m_overwrites.addAll(duplications);

                } else {
                    // continue without overwrite check 
                    String error = m_errorLine1 + "\n" + post.getStatusLine();
                    System.err.println(error);
                }

                count = 0;
                uploadFiles = new StringBuffer();
            }

        }
        if (m_overwrites.size() > 0) {
            rtv = showDuplicationsDialog(m_overwrites);
        } else {
            rtv = ModalDialog.APPROVE_OPTION;
        }

    } catch (HttpException e) {
        // TODO Auto-generated catch block
        e.printStackTrace(System.err);
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace(System.err);
    }

    return rtv;
}

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