List of usage examples for org.apache.commons.io IOUtils closeQuietly
public static void closeQuietly(OutputStream output)
OutputStream. From source file:com.revo.deployr.client.example.data.io.auth.stateful.preload.MultipleDataInMultipleDataOut.java
public static void main(String args[]) throws Exception { RClient rClient = null;/*from w ww. jav a 2 s .c o m*/ RProject rProject = null; try { /* * Determine DeployR server endpoint. */ String endpoint = System.getProperty("endpoint"); log.info("[ CONFIGURATION ] Using endpoint=" + endpoint); /* * Establish RClient connection to DeployR server. * * An RClient connection is the mandatory starting * point for any application using the client library. */ rClient = RClientFactory.createClient(endpoint); log.info("[ CONNECTION ] Established anonymous " + "connection [ RClient ]."); /* * Build a basic authentication token. */ RAuthentication rAuth = new RBasicAuthentication(System.getProperty("username"), System.getProperty("password")); /* * Establish an authenticated handle with the DeployR * server, rUser. Following this call the rClient * connection is operating as an authenticated connection * and all calls on rClient inherit the access permissions * of the authenticated user, rUser. */ RUser rUser = rClient.login(rAuth); log.info("[ AUTHENTICATION ] Upgraded to authenticated " + "connection [ RUser ]."); /* * Create a ProjectCreationOptions instance * to specify data inputs that "pre-heat" the R session * workspace or working directory for your project. */ ProjectCreationOptions creationOpts = new ProjectCreationOptions(); /* * MultipleDataInMultipleDataOut Example Note: * * The preload inputs sent on this example are * contrived and superfluous as the hipStar.rData * binary R object input and the hipStarUrl input * perform the exact same purpose...to load the Hip STAR * dataset into the workspace at project initialization. * * The example is provided to simply demonstrate * the mechanism of specifying multiple preload inputs. */ /* * Preload from the DeployR repository the following * binary R object input file: * /testuser/example-data-io/hipStar.rData */ ProjectPreloadOptions preloadWorkspace = new ProjectPreloadOptions(); preloadWorkspace.filename = "hipStar.rData"; preloadWorkspace.directory = "example-data-io"; preloadWorkspace.author = "testuser"; creationOpts.preloadWorkspace = preloadWorkspace; log.info("[ PRELOAD INPUT ] Repository binary file input " + "set on project creation, [ ProjectCreationOptions.preloadWorkspace ]."); /* * Load an R object literal "hipStarUrl" into the * workspace on project initialization. * * The R script execution that follows will check for * the existence of "hipStarUrl" in the workspace and if * present uses the URL path to load the Hipparcos star * dataset from the DAT file at that location. */ RData hipStarUrl = RDataFactory.createString("hipStarUrl", HIP_DAT_URL); List<RData> rinputs = Arrays.asList(hipStarUrl); creationOpts.rinputs = rinputs; log.info("[ PRELOAD INPUT ] External data source input " + "set on project creation, [ ProjectCreationOptions.rinputs ]."); /* * Create a temporary project (R session) passing a * ProjectCreationOptions to "pre-heat" data into the * workspace and/or working directory. */ rProject = rUser.createProject(creationOpts); log.info("[ GO STATEFUL ] Created stateful temporary " + "R session [ RProject ]."); /* * Create a ProjectExecutionOptions instance * to specify data inputs and output to the * execution of the repository-managed R script. * * This options object can be used to pass standard * execution model parameters on execution calls. All * fields are optional. * * See the Standard Execution Model chapter in the * Client Library Tutorial on the DeployR website for * further details. */ ProjectExecutionOptions execOpts = new ProjectExecutionOptions(); /* * Request the retrieval of the "hip" data.frame and * two vector objects from the workspace following the * execution. The corresponding R objects are named as * follows: * 'hip', hipDim', 'hipNames'. */ execOpts.routputs = Arrays.asList("hip", "hipDim", "hipNames"); log.info("[ EXEC OPTION ] DeployR-encoded R object request " + "set on execution [ ProjectExecutionOptions.routputs ]."); /* * Execute a public analytics Web service as an authenticated * user based on a repository-managed R script: * /testuser/example-data-io/dataIO.R */ RProjectExecution exec = rProject.executeScript("dataIO.R", "example-data-io", "testuser", null, execOpts); log.info("[ EXECUTION ] Stateful R script " + "execution completed [ RProjectExecution ]."); /* * Retrieve multiple outputs following the execution: * * 1. R console output. * 2. R console output. * 3. R console output. * 4. R console output. * 5. R console output. */ String console = exec.about().console; log.info("[ DATA OUTPUT ] Retrieved R console " + "output [ String ]."); /* * Retrieve the requested R object data encodings from * the workspace follwing the script execution. * * See the R Object Data Decoding chapter in the * Client Library Tutorial on the DeployR website for * further details. */ List<RData> objects = exec.about().workspaceObjects; for (RData rData : objects) { if (rData instanceof RDataFrame) { log.info("[ DATA OUTPUT ] Retrieved DeployR-encoded R " + "object output " + rData.getName() + " [ RDataFrame ]."); List<RData> hipSubsetVal = ((RDataFrame) rData).getValue(); } else if (rData instanceof RNumericVector) { log.info("[ DATA OUTPUT ] Retrieved DeployR-encoded R " + "object output " + rData.getName() + " [ RNumericVector ]."); List<Double> hipDimVal = ((RNumericVector) rData).getValue(); log.info("[ DATA OUTPUT ] Retrieved DeployR-encoded R " + "object " + rData.getName() + " value=" + hipDimVal); } else if (rData instanceof RStringVector) { log.info("[ DATA OUTPUT ] Retrieved DeployR-encoded R " + "object output " + rData.getName() + " [ RStringVector ]."); List<String> hipNamesVal = ((RStringVector) rData).getValue(); log.info("[ DATA OUTPUT ] Retrieved DeployR-encoded R " + "object " + rData.getName() + " value=" + hipNamesVal); } else { log.info("Unexpected DeployR-encoded R object returned, " + "object name=" + rData.getName() + ", encoding=" + rData.getClass()); } } /* * Retrieve the working directory files (artifact) * was generated by the execution. */ List<RProjectFile> wdFiles = exec.about().artifacts; for (RProjectFile wdFile : wdFiles) { log.info("[ DATA OUTPUT ] Retrieved working directory " + "file output " + wdFile.about().filename + " [ RProjectFile ]."); InputStream fis = null; try { fis = wdFile.download(); } catch (Exception ex) { log.warn("Working directory binary file download " + ex); } finally { IOUtils.closeQuietly(fis); } } /* * Retrieve R graphics device plots (results) called * unnamedplot*.png that was generated by the execution. */ List<RProjectResult> results = exec.about().results; for (RProjectResult result : results) { log.info("[ DATA OUTPUT ] Retrieved graphics device " + "plot output " + result.about().filename + " [ RProjectResult ]."); InputStream fis = null; try { fis = result.download(); } catch (Exception ex) { log.warn("Graphics device plot download " + ex); } finally { IOUtils.closeQuietly(fis); } } } catch (Exception ex) { log.warn("Unexpected runtime exception=" + ex); } finally { try { if (rProject != null) { /* * Close rProject before application exits. */ rProject.close(); } } catch (Exception fex) { } try { if (rClient != null) { /* * Release rClient connection before application exits. */ rClient.release(); } } catch (Exception fex) { } } }
From source file:com.wfd.util.FileUtil.java
public static void writeToFile(InputStream in, String filePath) { try {/*from w ww . j a va2s .com*/ byte[] data = IOUtils.toByteArray(in); FileUtils.writeByteArrayToFile(new File(filePath), data); IOUtils.closeQuietly(in); } catch (Exception e) { System.out.println("Failed to conver inputstream to an image in server."); e.printStackTrace(); } }
From source file:com.mayalogy.mayu.io.FileAppender.java
public static void appendToFile(final InputStream in, final File f) throws IOException { OutputStream stream = null;//w w w . ja va2s .c o m try { stream = outStream(f); IOUtils.copy(in, stream); } finally { IOUtils.closeQuietly(stream); } }
From source file:gov.nih.nci.caintegrator.application.study.ExternalLinksLoader.java
static void loadLinks(ExternalLinkList externalLinkList) throws ValidationException, IOException { CSVReader reader = new CSVReader(new FileReader(externalLinkList.getFile())); try {/*w w w. ja va 2s. c o m*/ loadLinks(externalLinkList, reader); } finally { IOUtils.closeQuietly(reader); } }
From source file:com.mayalogy.mayu.io.FileAppender.java
public static void appendToFile(final String in, final File f) throws IOException { InputStream stream = null;// w ww. j a va 2s . c o m try { stream = IOUtils.toInputStream(in); appendToFile(stream, f); } finally { IOUtils.closeQuietly(stream); } }
From source file:bookstore.BookUnmarshaller.java
public static Book[] BooksFromCsv(String url) { InputStream in = null;// ww w . jav a 2s .c o m Book[] books; try { in = new URL(url).openStream(); books = BooksFromString(IOUtils.toString(in, Charset.forName("utf-8"))); } catch (IOException | ParseException | NumberFormatException e) { return null; } finally { IOUtils.closeQuietly(in); } return books; }
From source file:net.bpelunit.util.FileUtil.java
public static byte[] readFile(File f) throws IOException { FileInputStream bprInputStream = null; try {/*from ww w .java 2s.co m*/ bprInputStream = new FileInputStream(f); ByteArrayOutputStream bytesOut = new ByteArrayOutputStream((int) f.length()); IOUtils.copy(bprInputStream, bytesOut); return bytesOut.toByteArray(); } finally { IOUtils.closeQuietly(bprInputStream); } }
From source file:gaffer.example.gettingstarted.util.DataUtils.java
public static List<String> loadData(final InputStream dataStream) { List<String> lines = null; try {/*from w w w .ja va 2 s. c o m*/ lines = IOUtils.readLines(dataStream); } catch (IOException e) { e.printStackTrace(); } finally { IOUtils.closeQuietly(dataStream); } return lines; }
From source file:com.google.gwt.site.markdown.Util.java
public static String getStringFromFile(File file) throws IOException { FileInputStream fileInputStream = null; try {//ww w. j av a 2s .c o m fileInputStream = new FileInputStream(file); return IOUtils.toString(fileInputStream, "UTF-8"); } finally { IOUtils.closeQuietly(fileInputStream); } }
From source file:net.javacrumbs.mocksocket.util.Utils.java
public static final byte[] toByteArray(InputStream stream) { try {// w ww . j a v a 2s.c o m return IOUtils.toByteArray(stream); } catch (IOException e) { throw new MockSocketException("Can not read data.", e); } finally { IOUtils.closeQuietly(stream); } }