List of usage examples for java.io FileInputStream read
public int read(byte b[]) throws IOException
b.length bytes of data from this input stream into an array of bytes. From source file:at.tugraz.sss.serv.util.SSFileU.java
public static void readFileBytes(final OutputStream outStream, final FileInputStream fileIn, final Integer transmissionSize) throws SSErr { try {// w w w .j a v a 2s. c om final byte[] fileBytes = new byte[transmissionSize]; int read; while ((read = fileIn.read(fileBytes)) != -1) { if (fileBytes.length == 0 || read <= 0) { outStream.write(new byte[0]); outStream.flush(); break; } outStream.write(fileBytes, 0, read); outStream.flush(); } } catch (Exception error) { SSServErrReg.regErrThrow(error); } finally { if (outStream != null) { try { outStream.close(); } catch (IOException ex) { SSLogU.err(ex); } } if (fileIn != null) { try { fileIn.close(); } catch (IOException ex) { SSLogU.err(ex); } } } }
From source file:com.haoqee.chatsdk.net.Utility.java
private static byte[] getFileByte(File file) { byte[] buffer = null; FileInputStream fin; try {//from www . j a va 2s .com fin = new FileInputStream(file.getPath()); int length; try { length = fin.available(); buffer = new byte[length]; fin.read(buffer); fin.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } catch (FileNotFoundException e) { // TODO Auto-generated catch block e.printStackTrace(); } return buffer; }
From source file:MyClassLoader.java
public Class findClass(String name) { byte[] classData = null; try {//from w w w . j av a 2 s. co m FileInputStream f = new FileInputStream("C:\\" + name + ".class"); int num = f.available(); classData = new byte[num]; f.read(classData); } catch (IOException e) { System.out.println(e); } Class x = defineClass(name, classData, 0, classData.length); return x; }
From source file:com.wbtech.ums.UmsAgent.java
private static void uploadAllLog(Context context) { File file1 = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/mobclick_agent_cached_" + context.getPackageName()); if (file1.exists()) { try {// www . j a v a 2 s .c om FileInputStream in = new FileInputStream(Environment.getExternalStorageDirectory().getAbsolutePath() + "/mobclick_agent_cached_" + context.getPackageName()); StringBuffer sb = new StringBuffer(); int i = 0; byte[] s = new byte[1024 * 4]; while ((i = in.read(s)) != -1) { sb.append(new String(s, 0, i)); } if (CommonUtil.isNetworkAvailable(context)) { MyMessage message = NetworkUitlity.post(UmsConstants.preUrl + UmsConstants.uploadUrl, sb + ""); if (message.isFlag()) { File file = new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/mobclick_agent_cached_" + context.getPackageName()); file.delete(); } else { CommonUtil.printLog("uploadError", "uploadLog Error"); } } else { CommonUtil.printLog("NetworkError", "Network, not work"); } } catch (Exception e) { e.printStackTrace(); } } }
From source file:com.baidu.rigel.biplatform.tesseract.util.FileUtils.java
/** * ???//from w ww.j a va2 s . com * * @param oldFile * * @param newFile * * @return * @throws IOException */ public static boolean copyFile(File oldFile, File newFile) { FileInputStream fileInputStream = null; FileOutputStream fileOutputStream = null; try { fileInputStream = new FileInputStream(oldFile); fileOutputStream = new FileOutputStream(newFile); byte[] buf = new byte[1024]; int len = 0; // ?? while ((len = fileInputStream.read(buf)) != -1) { fileOutputStream.write(buf, 0, len); fileOutputStream.flush(); } return true; } catch (IOException e) { LOGGER.error(e.getMessage(), e); return false; } finally { try { if (fileInputStream != null) { fileInputStream.close(); } if (fileOutputStream != null) { fileOutputStream.close(); } } catch (IOException e) { LOGGER.error(e.getMessage(), e); } } }
From source file:com.chargebee.Application.MappingHeaders.java
private JSONObject readJsonData(String fileName2) throws Exception { //processes the Json array and returns in the required format. File f = new File(fileName2); FileInputStream fr = new FileInputStream(f); byte[] b = new byte[fr.available()]; fr.read(b); //JSONArray jarr = new JSONArray(new String(b)); JSONObject jobj = new JSONObject(new String(b)); return jobj; // The required Json object }
From source file:edu.internet2.middleware.shibboleth.common.config.security.FilesystemPKIXValidationInformationBeanDefinitionParser.java
/** {@inheritDoc} */ protected byte[] getEncodedCRL(String certCRLContent) { try {//from w w w . j av a 2 s .c o m FileInputStream ins = new FileInputStream(certCRLContent); byte[] encoded = new byte[ins.available()]; ins.read(encoded); return encoded; } catch (IOException e) { throw new FatalBeanException("Unable to read CRL(s) from file " + certCRLContent, e); } }
From source file:com.krawler.formbuilder.servlet.FileDownloadServlet.java
protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try {/*from w ww .j a v a 2 s .co m*/ WebApplicationContext applicationContext = WebApplicationContextUtils .getWebApplicationContext(getServletContext()); ModuleBuilderService moduleBuilderService = (ModuleBuilderService) applicationContext .getBean("moduleBuilderService"); mb_docs docsObj = (mb_docs) moduleBuilderService.getMBDocById(mb_docs.class, request.getParameter("docid")); String src = PropsValues.STORE_PATH + request.getParameter("url"); File fp = new File(src); byte[] buff = new byte[(int) fp.length()]; FileInputStream fis = new FileInputStream(fp); int read = fis.read(buff); javax.activation.FileTypeMap mmap = new javax.activation.MimetypesFileTypeMap(); String fileName = docsObj.getDocname(); response.setContentType(mmap.getContentType(fp)); response.setContentLength((int) fp.length()); String contentDisposition = ""; if (request.getParameter("attachment") != null) { contentDisposition = "attachment"; } else { contentDisposition = "inline"; } response.setHeader("Content-Disposition", contentDisposition + "; filename=\"" + fileName + "\";"); response.getOutputStream().write(buff, 0, buff.length); response.getOutputStream().flush(); } catch (Exception ex) { logger.warn("Unable To Download File :" + ex.toString(), ex); } }
From source file:com.jsmartframework.web.manager.WebContext.java
/** * Write response as file stream when you want to provide download functionality. * Note that by using this method the response as HTML will not be generated and * the response will be what you have defined. * * @param file - File to be written on response. * @param bufferSize - Buffer size to write the response. Example 2048 bytes. * @throws IOException/*from ww w. j a v a 2 s . c o m*/ */ public static void writeResponseAsFileStream(File file, int bufferSize) throws IOException { WebContext context = getCurrentInstance(); if (context != null && file != null && bufferSize > 0) { context.responseWritten = true; context.response.setHeader("Content-Disposition", "attachment;filename=\"" + file.getName() + "\""); context.response.addHeader("Content-Length", Long.toString(file.length())); context.response.setContentLength((int) file.length()); String mimetype = getApplication().getMimeType(file.getName()); context.response.setContentType((mimetype != null) ? mimetype : "application/octet-stream"); FileInputStream fileInputStream = new FileInputStream(file); ServletOutputStream outputStream = context.response.getOutputStream(); try { int i; byte[] buffer = new byte[bufferSize]; while ((i = fileInputStream.read(buffer)) != -1) { outputStream.write(buffer, 0, i); } } finally { outputStream.flush(); fileInputStream.close(); } } }
From source file:edu.internet2.middleware.shibboleth.common.config.security.FilesystemPKIXValidationInformationBeanDefinitionParser.java
/** {@inheritDoc} */ protected byte[] getEncodedCertificate(String certConfigContent) { try {/*from w w w . j a va 2 s. c o m*/ FileInputStream ins = new FileInputStream(certConfigContent); byte[] encoded = new byte[ins.available()]; ins.read(encoded); return encoded; } catch (IOException e) { throw new FatalBeanException("Unable to read certificate(s) from file " + certConfigContent, e); } }