Example usage for java.io Writer close

Introduction

In this page you can find the example usage for java.io Writer close.

Prototype

public abstract void close() throws IOException;

Source Link

Document

Closes the stream, flushing it first.

Usage

From source file:core.RESTCalls.RESTPost.java

public static String httpPost(String urlStr, String[] paramName, String[] paramVal) throws Exception {

    URL url = new URL(urlStr);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setRequestMethod("POST");

    conn.setDoOutput(true);//from  w ww.  ja  va2s  .co  m
    conn.setDoInput(true);
    conn.setUseCaches(false);
    conn.setAllowUserInteraction(false);
    conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

    OutputStream out = conn.getOutputStream();

    Writer writer = new OutputStreamWriter(out, "UTF-8");

    for (int i = 0; i < paramName.length; i++) {

        writer.write(paramName[i]);
        writer.write("=");
        writer.write(URLEncoder.encode(paramVal[i], "UTF-8"));
        writer.write("&");
    }

    writer.close();
    out.close();

    if (conn.getResponseCode() != 200)
        throw new IOException(conn.getResponseMessage());

    BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));

    StringBuilder sb = new StringBuilder();

    String line;

    while ((line = rd.readLine()) != null)
        sb.append(line + "\n");

    rd.close();

    conn.disconnect();

    return sb.toString();
}

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From source file:com.swordlord.gozer.file.GozerFileLoader.java

public static String convertInputStreamToString(InputStream is) {
    String strReturn = "";

    if (is != null) {
        Writer writer = new StringWriter();

        char[] buffer = new char[1024];
        try {/*  w  w  w.  j a v a2s  .c om*/
            Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));

            int n;
            while ((n = reader.read(buffer)) != -1) {
                writer.write(buffer, 0, n);
            }

            reader.close();
            strReturn = writer.toString();
            writer.close();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {

        }
    }

    return strReturn;
}

---

From source file:com.magic.util.FileUtil.java

public static void writeString(String path, String name, String s) throws IOException {
    Writer out = getBufferedWriter(path, name);

    try {//w ww .  ja  v a2  s  .c om
        out.write(s + System.getProperty("line.separator"));
    } catch (IOException e) {
        Debug.logError(e, module);
        throw e;
    } finally {
        if (out != null) {
            try {
                out.close();
            } catch (IOException e) {
                Debug.logError(e, module);
            }
        }
    }
}

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From source file:org.jboss.as.test.integration.security.loginmodules.common.Utils.java

public static synchronized void logToFile(String what, String where) {
    try {/*from w  ww . ja  v a 2 s.  c om*/
        File file = new File(where);
        if (!file.exists()) {
            file.createNewFile();
        }
        OutputStream os = new FileOutputStream(file, true);
        Writer writer = new OutputStreamWriter(os);
        writer.write(what);
        if (!what.endsWith("\n")) {
            writer.write("\n");
        }
        writer.close();
        os.close();

    } catch (IOException ex) {
        throw new RuntimeException(ex);
    }
}

---

From source file:org.wso2.carbon.appmanager.integration.ui.Util.HttpUtil.java

public static HttpResponse doPut(URL endpoint, String postBody, Map<String, String> headers) throws Exception {
    HttpURLConnection urlConnection = null;
    try {//from  w w w  .j a  va2  s. com
        urlConnection = (HttpURLConnection) endpoint.openConnection();
        try {
            urlConnection.setRequestMethod("PUT");
        } catch (ProtocolException e) {
            throw new Exception("Shouldn't happen: HttpURLConnection doesn't support POST??", e);
        }
        urlConnection.setDoOutput(true);

        if (headers != null && headers.size() > 0) {
            Iterator<String> itr = headers.keySet().iterator();
            while (itr.hasNext()) {
                String key = itr.next();
                urlConnection.setRequestProperty(key, headers.get(key));
            }
        }
        OutputStream out = urlConnection.getOutputStream();
        try {
            Writer writer = new OutputStreamWriter(out, "UTF-8");
            writer.write(postBody);
            writer.close();
        } catch (IOException e) {
            throw new Exception("IOException while puting data", e);
        } finally {
            if (out != null) {
                out.close();
            }
        }

        // Get the response
        StringBuilder sb = new StringBuilder();
        BufferedReader rd = null;
        try {
            rd = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
            String line;
            while ((line = rd.readLine()) != null) {
                sb.append(line);
            }
        } catch (FileNotFoundException ignored) {
        } finally {
            if (rd != null) {
                rd.close();
            }
        }
        Iterator<String> itr = urlConnection.getHeaderFields().keySet().iterator();
        Map<String, String> responseHeaders = new HashMap();
        while (itr.hasNext()) {
            String key = itr.next();
            if (key != null) {
                responseHeaders.put(key, urlConnection.getHeaderField(key));
            }
        }
        return new HttpResponse(sb.toString(), urlConnection.getResponseCode(), responseHeaders);

    } catch (IOException e) {
        throw new Exception("Connection error (is server running at " + endpoint + " ?): " + e);
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
}

---

From source file:com.nextep.designer.beng.model.impl.FileUtils.java

/**
 * Writes the specified contents to a file at the given file location.
 * /*from   w  w  w .jav  a 2  s .  co m*/
 * @param fileName name of the file to create (will be replaced if exists)
 * @param contents contents to write to the file.
 */
public static void writeToFile(String fileName, String contents) {
    // Retrieves the encoding specified in the preferences
    String encoding = SQLGenUtil.getPreference(PreferenceConstants.SQL_SCRIPT_ENCODING);
    final boolean convert = SQLGenUtil.getPreferenceBool(PreferenceConstants.SQL_SCRIPT_NEWLINE_CONVERT);
    if (convert) {
        String newline = CorePlugin.getService(IGenerationService.class).getNewLine();
        // Converting everything to \n then \n to expected new line
        contents = contents.replace("\r\n", "\n");
        contents = contents.replace("\r", "\n");
        contents = contents.replace("\n", newline);
    }
    Writer w = null;
    try {
        w = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(fileName)), encoding));
        w.write(contents);
    } catch (FileNotFoundException e) {
        throw new ErrorException(e);
    } catch (IOException e) {
        throw new ErrorException(e);
    } finally {
        if (w != null) {
            try {
                w.close();
            } catch (IOException e) {
                throw new ErrorException(e);
            }
        }
    }
}

---

From source file:edu.ku.brc.specify.tools.FixMetaTags.java

/**
* Change the contents of text file in its entirety, overwriting any
* existing text.//from w  w  w .  ja v  a 2 s.  c o m
*
* This style of implementation throws all exceptions to the caller.
*
* @param aFile is an existing file which can be written to.
* @throws IllegalArgumentException if param does not comply.
* @throws FileNotFoundException if the file does not exist.
* @throws IOException if problem encountered during write.
*/
static public void setContents(File aFile, String aContents) throws FileNotFoundException, IOException {
    if (aFile == null) {
        throw new IllegalArgumentException("File should not be null.");
    }
    if (!aFile.exists()) {
        throw new FileNotFoundException("File does not exist: " + aFile);
    }
    if (!aFile.isFile()) {
        throw new IllegalArgumentException("Should not be a directory: " + aFile);
    }
    if (!aFile.canWrite()) {
        throw new IllegalArgumentException("File cannot be written: " + aFile);
    }

    //declared here only to make visible to finally clause; generic reference
    Writer output = null;
    try {
        //use buffering
        //FileWriter always assumes default encoding is OK!
        output = new BufferedWriter(new FileWriter(aFile));
        output.write(aContents);
    } finally {
        //flush and close both "output" and its underlying FileWriter
        if (output != null)
            output.close();
    }
}

---

From source file:org.wso2.carbon.appmanager.integration.ui.Util.HttpUtil.java

public static HttpResponse doPost(URL endpoint, String postBody, Map<String, String> headers) throws Exception {
    HttpURLConnection urlConnection = null;
    try {/*from ww  w  .j a  v  a2  s. c o  m*/
        urlConnection = (HttpURLConnection) endpoint.openConnection();
        try {
            urlConnection.setRequestMethod("POST");
        } catch (ProtocolException e) {
            throw new Exception("Shouldn't happen: HttpURLConnection doesn't support POST??", e);
        }
        urlConnection.setDoOutput(true);
        urlConnection.setDoInput(true);
        urlConnection.setUseCaches(false);
        urlConnection.setAllowUserInteraction(false);

        // setting headers
        if (headers != null && headers.size() > 0) {
            Iterator<String> itr = headers.keySet().iterator();
            while (itr.hasNext()) {
                String key = itr.next();
                urlConnection.setRequestProperty(key, headers.get(key));
            }
        }

        OutputStream out = urlConnection.getOutputStream();
        try {
            Writer writer = new OutputStreamWriter(out, "UTF-8");
            writer.write(postBody);
            writer.close();
        } catch (IOException e) {
            throw new Exception("IOException while posting data", e);
        } finally {
            if (out != null) {
                out.close();
            }
        }

        // Get the response
        StringBuilder sb = new StringBuilder();
        BufferedReader rd = null;
        try {
            rd = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
            String line;
            while ((line = rd.readLine()) != null) {
                sb.append(line);
            }
        } catch (FileNotFoundException ignored) {
        } finally {
            if (rd != null) {
                rd.close();
            }
        }
        Iterator<String> itr = urlConnection.getHeaderFields().keySet().iterator();
        Map<String, String> responseHeaders = new HashMap();
        while (itr.hasNext()) {
            String key = itr.next();
            if (key != null) {
                responseHeaders.put(key, urlConnection.getHeaderField(key));
            }
        }
        return new HttpResponse(sb.toString(), urlConnection.getResponseCode(), responseHeaders);

    } catch (IOException e) {
        throw new Exception("Connection error (is server running at " + endpoint + " ?): " + e);
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
}

---

From source file:com.ms.commons.test.classloader.util.CLFileUtil.java

public static void copyAndProcessFileContext(URL url, File newFile, String encoding, Processor processor) {
    try {//from w w w  .  j av a2s . c  om
        if (processor == null) {
            processor = DEFAULT_PROCESSOR;
        }

        if (!newFile.exists()) {
            String fileContext = readUrlToString(url, null);
            if (encoding == null) {
                if (FileUtil.convertURLToFilePath(url).endsWith(".xml") && fileContext.contains("\"UTF-8\"")) {
                    encoding = "UTF-8";
                    fileContext = readUrlToString(url, "UTF-8");
                }
            }

            (new File(getFilePath(newFile.getPath()))).mkdirs();

            Writer writer;
            if (encoding == null) {
                writer = new OutputStreamWriter(new FileOutputStream(newFile));
            } else {
                writer = new OutputStreamWriter(new FileOutputStream(newFile), encoding);
            }
            try {
                writer.write(processor.process(fileContext));
                writer.flush();
            } finally {
                writer.close();
            }
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

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From source file:com.dm.estore.common.utils.FileUtils.java

/**
 * Save text file from classpath to file.
 *
 * @param resource Classpath text resource
 * @param outputFile Output file/*from w  w  w  .  j  av  a  2  s .com*/
 * @param processor Optional line processor
 * @param encoding Text encoding
 * @throws IOException Exception
 */
public static void saveTextFileFromClassPath(String resource, String outputFile, String encoding,
        TextStreamProcessor processor) throws IOException {

    final InputStream inputStream = FileUtils.class.getResourceAsStream(resource);
    final Scanner scanner = new Scanner(inputStream, encoding);
    final Writer out = new OutputStreamWriter(new FileOutputStream(outputFile), encoding);
    try {

        while (scanner.hasNextLine()) {
            final String nextLine = scanner.nextLine();
            out.write(processor != null ? processor.process(nextLine) : nextLine);
            out.write(NEW_LINE_SEP);
        }

    } finally {
        out.close();
        scanner.close();
    }

}

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