List of usage examples for java.io CharArrayWriter write
public void write(String str, int off, int len)
From source file:Main.java
public static void main(String[] args) { String str = "from java2s.com!"; CharArrayWriter chw = new CharArrayWriter(); // portion to be written to writer chw.write(str, 4, 9); // print the buffer as string System.out.println(chw.toString()); }
From source file:Main.java
public static void main(String[] args) { char[] ch = { 'A', 'B', 'C', 'D', 'E' }; CharArrayWriter chw = new CharArrayWriter(); // write character buffer to the writer chw.write(ch, 3, 2); String str = chw.toString();//from w w w. j a v a 2 s .c om System.out.print(str); }
From source file:Main.java
/** Reads an <code>InputStream</code> into a string. * @param in The stream to read into a string. * @return The stream as a string// w w w.j a v a2s . c o m * @throws IOException */ public static String toString(InputStream in) throws IOException { if (in == null) { return null; } final Reader reader = new InputStreamReader(in); final char[] buffer = new char[100]; final CharArrayWriter writer = new CharArrayWriter(1000); int read; while ((read = reader.read(buffer)) > -1) writer.write(buffer, 0, read); return writer.toString(); }
From source file:org.opennaas.extensions.ofertie.ncl.provisioner.components.UserManager.java
private static String readXMLFile(String filePath) throws IOException { log.debug("Reading content of file " + filePath); InputStreamReader reader = null; BufferedReader bufferReader = null; try {/*from ww w. j a v a 2 s . c o m*/ URL url = new URL(filePath); reader = new InputStreamReader(url.openStream()); bufferReader = new BufferedReader(reader); } catch (MalformedURLException ignore) { // They try a file File file = new File(filePath); bufferReader = new BufferedReader(new FileReader(file)); } CharArrayWriter w = new CharArrayWriter(); int n; char[] buf = new char[8192]; while ((n = bufferReader.read(buf)) > 0) { w.write(buf, 0, n); } bufferReader.close(); String fileContent = w.toString(); log.debug("Readed content of file " + filePath); return fileContent; }
From source file:Base64.java
private static char[] readChars(File file) { CharArrayWriter caw = new CharArrayWriter(); try {//w w w. j a va 2 s . co m Reader fr = new FileReader(file); Reader in = new BufferedReader(fr); int count = 0; char[] buf = new char[16384]; while ((count = in.read(buf)) != -1) { if (count > 0) caw.write(buf, 0, count); } in.close(); } catch (Exception e) { e.printStackTrace(); } return caw.toCharArray(); }
From source file:Base64.java
private static char[] readChars(final File file) { final CharArrayWriter caw = new CharArrayWriter(); try {// w ww . ja v a 2s. c om final Reader fr = new FileReader(file); final Reader in = new BufferedReader(fr); int count; final char[] buf = new char[16384]; while ((count = in.read(buf)) != -1) { if (count > 0) { caw.write(buf, 0, count); } } in.close(); } catch (Exception e) { e.printStackTrace(); } return caw.toCharArray(); }
From source file:com.metaparadigm.jsonrpc.JSONRPCServlet.java
@Override public void service(HttpServletRequest request, HttpServletResponse response) throws IOException, ClassCastException { // Find the JSONRPCBridge for this session or create one // if it doesn't exist HttpSession session = request.getSession(); JSONRPCBridge json_bridge = null;/*from w w w . jav a 2s . com*/ json_bridge = (JSONRPCBridge) session.getAttribute("JSONRPCBridge"); if (json_bridge == null) { // Only create a new bridge if not disabled in config if (!auto_session_bridge) { // Use the global bridge only, and don't set on session. json_bridge = JSONRPCBridge.getGlobalBridge(); if (json_bridge.isDebug()) log.info("Using global bridge."); } else { json_bridge = new JSONRPCBridge(); session.setAttribute("JSONRPCBridge", json_bridge); if (json_bridge.isDebug()) log.info("Created a bridge for this session."); } } // Encode using UTF-8, although We are actually ASCII clean as // all unicode data is JSON escaped using backslash u. This is // less data efficient for foreign character sets but it is // needed to support naughty browsers such as Konqueror and Safari // which do not honour the charset set in the response response.setContentType("text/plain;charset=utf-8"); OutputStream out = response.getOutputStream(); // Decode using the charset in the request if it exists otherwise // use UTF-8 as this is what all browser implementations use. // The JSON-RPC-Java JavaScript client is ASCII clean so it // although here we can correctly handle data from other clients // that do not escape non ASCII data String charset = request.getCharacterEncoding(); if (charset == null) charset = "UTF-8"; BufferedReader in = new BufferedReader(new InputStreamReader(request.getInputStream(), charset)); // Read the request CharArrayWriter data = new CharArrayWriter(); char buf[] = new char[buf_size]; int ret; while ((ret = in.read(buf, 0, buf_size)) != -1) data.write(buf, 0, ret); if (json_bridge.isDebug()) log.fine("recieve: " + data.toString()); // Process the request JSONObject json_req = null; JSONRPCResult json_res = null; try { json_req = new JSONObject(data.toString()); json_res = json_bridge.call(new Object[] { request }, json_req); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } // Write the response if (json_bridge.isDebug()) log.fine("send: " + json_res.toString()); byte[] bout = json_res.toString().getBytes("UTF-8"); if (keepalive) { response.setIntHeader("Content-Length", bout.length); } out.write(bout); out.flush(); out.close(); }
From source file:com.orange.mmp.api.ws.jsonrpc.MMPJsonRpcServlet.java
@Override public void service(HttpServletRequest request, HttpServletResponse response) throws IOException { ExecutionContext executionContext = ExecutionContext.newInstance(request); executionContext.setName("JSON-RCP Request"); executionContext.executionStart();/*w w w. j av a 2s. c o m*/ String requestInfo = ""; try { // Use protected method in case someone wants to override it JSONRPCBridge json_bridge = findBridge(request); // Encode using UTF-8, although We are actually ASCII clean as // all unicode data is JSON escaped using backslash u. This is // less data efficient for foreign character sets but it is // needed to support naughty browsers such as Konqueror and Safari // which do not honour the charset set in the response response.setContentType("application/json"); response.setCharacterEncoding(Constants.DEFAULT_ENCODING); OutputStream out = response.getOutputStream(); // Decode using the charset in the request if it exists otherwise // use UTF-8 as this is what all browser implementations use. // The JSON-RPC-Java JavaScript client is ASCII clean so it // although here we can correctly handle data from other clients // that do not escape non ASCII data String charset = request.getCharacterEncoding(); if (charset == null) { charset = Constants.DEFAULT_ENCODING; } String receiveString = null; // Test HTTP GET if (request.getQueryString() != null) { String id = request.getParameter(HTTP_PARAM_ID); if (id != null) { executionContext.setApiName(id); StringBuilder receiveStringBuilder = new StringBuilder("{\"id\":").append(id) .append(",\"method\":\""); String method = request.getParameter(HTTP_PARAM_METHOD); // Get params if (method != null) { executionContext.setMethodName(method); receiveStringBuilder.append(method); String param = request.getParameter(HTTP_PARAM_PARAM); // There is parameters if (param != null) { receiveStringBuilder.append("\",\"params\":").append(param).append("}"); } // Empty params else { receiveStringBuilder.append("\",\"params\":[]}"); } } // Default method (list API) else { receiveStringBuilder.append("system.listMethods\",\"params\":[]}"); } // Set JSON-RPC call string receiveString = receiveStringBuilder.toString(); //Trace request executionContext.setName("JSON-RCP Request: " + receiveString); } } // Test HTTP POST if (receiveString == null) { BufferedReader in = new BufferedReader(new InputStreamReader(request.getInputStream(), charset)); // Read the request CharArrayWriter data = new CharArrayWriter(); char buf[] = new char[4096]; int ret; while ((ret = in.read(buf, 0, 4096)) != -1) { data.write(buf, 0, ret); } receiveString = data.toString(); requestInfo = receiveString; } // Process the request JSONObject json_req; JSONRPCResult json_res; try { json_req = new JSONObject(receiveString); json_res = json_bridge.call(new Object[] { request, response }, json_req); } catch (JSONException e) { json_res = new JSONRPCResult(JSONRPCResult.CODE_ERR_PARSE, null, JSONRPCResult.MSG_ERR_PARSE); } String sendString = json_res.toString(); // Write the response byte[] bout = sendString.getBytes(Constants.DEFAULT_ENCODING); // if the request header says that the browser can take gzip compressed // output, then gzip the output // but only if the response is large enough to warrant it and if the // resultant compressed output is // actually smaller. String ae = request.getHeader("accept-encoding"); if (ae != null && ae.indexOf("gzip") != -1) { byte[] gzippedOut = gzip(bout); // if gzip didn't actually help, abort if (bout.length > gzippedOut.length) { bout = gzippedOut; response.addHeader("Content-Encoding", "gzip"); } } response.setIntHeader("Content-Length", bout.length); out.write(bout); } catch (Throwable error) { //Catch exception throw new IOExceptionWithCause("Error during request processing", error); } finally { executionContext.executionStop(); printMonitoredRequest(requestInfo); executionContext.close(); } }
From source file:com.silverpeas.jcrutil.model.impl.AbstractJcrTestCase.java
protected String readFile(String path) throws IOException { CharArrayWriter writer = null; InputStream in = null;/*from w w w . ja v a 2 s. c o m*/ Reader reader = null; try { in = new FileInputStream(path); writer = new CharArrayWriter(); reader = new InputStreamReader(in); char[] buffer = new char[8]; int c = 0; while ((c = reader.read(buffer)) != -1) { writer.write(buffer, 0, c); } return new String(writer.toCharArray()); } catch (IOException ioex) { return null; } finally { if (reader != null) { reader.close(); } if (in != null) { in.close(); } if (writer != null) { writer.close(); } } }
From source file:com.silverpeas.jcrutil.model.impl.AbstractJcrTestCase.java
protected String readFileFromNode(Node fileNode) throws IOException, ValueFormatException, PathNotFoundException, RepositoryException { CharArrayWriter writer = null; InputStream in = null;//ww w . j a va 2s . c om Reader reader = null; try { in = fileNode.getNode(JcrConstants.JCR_CONTENT).getProperty(JcrConstants.JCR_DATA).getStream(); writer = new CharArrayWriter(); reader = new InputStreamReader(in); char[] buffer = new char[8]; int c = 0; while ((c = reader.read(buffer)) != -1) { writer.write(buffer, 0, c); } return new String(writer.toCharArray()); } catch (IOException ioex) { return null; } finally { if (reader != null) { reader.close(); } if (in != null) { in.close(); } if (writer != null) { writer.close(); } } }