Example usage for java.io FileWriter write

Introduction

In this page you can find the example usage for java.io FileWriter write.

Prototype

public void write(char cbuf[], int off, int len) throws IOException 

Source Link

Document

Writes a portion of an array of characters.

Usage

From source file:Main.java

public static void putString(File file, String contents) throws IOException {
    FileWriter output = new FileWriter(file);
    output.write(contents, 0, contents.length());
    output.close();// ww  w.  j  av  a 2  s  . c o  m
}

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From source file:Main.java

/**
 * write a string To a File/*from   w ww.  java 2 s  .c  o  m*/
 * 
 * @param context
 * @param file
 * @param string
 * @param isAppend
 * @return
 */
public static boolean writeStringToFile(File file, String string, boolean isAppend) {
    boolean isWriteOk = false;

    if (null == file || null == string) {
        return isWriteOk;
    }

    FileWriter fw = null;
    try {
        fw = new FileWriter(file, isAppend);

        fw.write(string, 0, string.length());
        fw.flush();
        isWriteOk = true;
    } catch (Exception e) {
        isWriteOk = false;
        e.printStackTrace();
    } finally {
        if (fw != null) {
            try {
                fw.close();
            } catch (IOException e) {
                isWriteOk = false;
                e.printStackTrace();
            }
        }
    }
    return isWriteOk;
}

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From source file:it.geosolutions.geoserver.jms.impl.handlers.DocumentFile.java

/**
 * //from  w  w  w  .j  a v a 2 s . com
 * @param file
 * @param xml
 * @throws JDOMException
 * @throws IOException
 */
protected static void writer(File file, String xml) throws JDOMException, IOException {

    FileWriter writer = null;
    StringReader reader = null;
    try {
        writer = new FileWriter(file);
        reader = new StringReader(xml);

        char[] cbuf = new char[2048];
        int size = 0;
        while (reader.ready() && (size = reader.read(cbuf)) != -1) {
            writer.write(cbuf, 0, size);
        }

    } finally {
        writer.flush();
        IOUtils.closeQuietly(writer);
        IOUtils.closeQuietly(reader);
    }
}

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From source file:Main.java

private static void _writeOutput(String outputString, FileWriter fileWriter) throws IOException {
    if (_exportDTD) {
        // XSLT discards the DTD decalration.
        // The following code inserts the specified DTD decalrations.
        // Write the following into the filewriter first:
        // <?xml version="1.0" encoding="UTF-8"?>,
        // which appears just before the comment, <!--
        int positionToInsertDTD = outputString.indexOf("<!--");
        fileWriter.write(outputString, 0, positionToInsertDTD);
        // FIXME: So far, only MoML DTD can be exported. If the support
        // of more DTDs is necessray, modify the main() method and
        // setExportDTD() method to allow configuration of DTD.
        fileWriter.write("\r\n<!DOCTYPE entity PUBLIC \"-//UC Berkeley//DTD MoML 1//EN\" "
                + "\r\n\"http://ptolemy.eecs.berkeley.edu/xml/dtd/MoML_1.dtd\">");
        fileWriter.write(outputString.substring(positionToInsertDTD));
    } else {/*from w  ww. j a v a2 s  .c o  m*/
        fileWriter.write(outputString);
    }
}

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From source file:com.moss.appsnap.keeper.freedesktop.FreeDesktopAppHandler.java

public static void writeLaunchScript(boolean isKeeper, String launchCommand, File scriptLocation,
        final PosixFifoSocketAddress fifoSocketServer) throws IOException {
    FileWriter writer = new FileWriter(scriptLocation);
    writer.append("#!" + SHELL + "\n\n");

    if (!isKeeper) {
        {// WRITE THE FIFO SOCKETS FUNCTION
            Reader functionReader = new InputStreamReader(PosixFifoMisc.sendFifoSocketMessageBashFunction());
            char[] b = new char[1024];

            for (int x = functionReader.read(b); x != -1; x = functionReader.read(b)) {
                writer.write(b, 0, x);
            }//from   w w w  .j a v  a2s .  c om
        }

        {
            // WRITE THE POLLING CALL TO THE KEEPER
            final char EOL = '\n';
            writer.append(EOL + "CONTROL=" + fifoSocketServer.controlPipe().getAbsolutePath() + "\n" + "DIR="
                    + fifoSocketServer.socketsDir().getAbsolutePath() + EOL + "" + EOL
                    + "xmessage \"Checking for updates...\" -buttons \"\" -center -title \"Please Wait...\" &"
                    + EOL + "DIALOG=$!" + EOL + "" + EOL
                    + "RESPONSE=`echo -n \"LAUNCH_POLL\" | sendFifoSocketMessage $CONTROL $DIR`" + EOL + ""
                    + EOL + "echo \"RESPONSE: $RESPONSE\"" + EOL + "" + EOL + "kill $DIALOG" + EOL + "" + EOL
                    + "if [ \"$RESPONSE\" != \"OK\" ] " + EOL + "then" + EOL
                    + "   xmessage -center -buttons OK -default OK  \"Polling error: $RESPONSE\"" + EOL
                    + "   exit 1;" + EOL + "fi" + EOL + "" + EOL);
        }
        writer.append(launchCommand);
    } else {
        writer.append("while [ 1 ]; do \n");
        writer.append(launchCommand);
        writer.append('\n');
        writer.append("RESULT=$?\n");
        writer.append("if [ $RESULT != 0 ]; then echo \"Error: keeper quit with return $RESULT\"; exit; fi\n");
        writer.append("done");
    }

    writer.flush();
    writer.close();

}

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From source file:com.amazonaws.mturk.cmd.MakeTemplate.java

private void copyTemplateFile(String sourceRoot, String targetRoot, String extension) throws Exception {
    String inputFileName = sourceRoot + extension;
    String outputFileName = targetRoot + extension;

    System.out.println("Copying resource file: " + outputFileName);

    File inputFile = new File(inputFileName);
    if (!inputFile.exists() || !inputFile.canRead()) {
        throw new Exception("Could not read from the file " + inputFileName);
    }/*from   w  w  w .  j a  v a2  s.  co m*/

    File outputFile = new File(outputFileName);
    if (!outputFile.exists()) {
        if (!outputFile.createNewFile() || !outputFile.canWrite())
            throw new Exception("Could not write to the file " + outputFileName);
    }

    // copy file
    FileReader in = new FileReader(inputFile);
    FileWriter out = new FileWriter(outputFile);

    try {
        char[] buffer = new char[1024];
        int nread = 0;
        while ((nread = in.read(buffer)) != -1) {
            out.write(buffer, 0, nread);
        }
    } finally {
        in.close();
        out.close();
    }
}

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From source file:com.apkcategorychecker.writer.WriterCSV.java

private void removeBlankLines(String _csvPath) {
    try {/*from  w ww. ja  v  a  2s . c om*/
        FileReader fr = new FileReader(_csvPath);
        BufferedReader br = new BufferedReader(fr);
        FileWriter fw = new FileWriter(_csvPath + ".temp");
        String line;

        while ((line = br.readLine()) != null) {
            //line = line.trim(); // remove leading and trailing whitespace
            if (line.length() != 0) // don't write out blank lines
            {
                fw.write(line, 0, line.length());
                fw.append("\r");
            }
        }
        fr.close();
        fw.close();
        File old = new File(_csvPath);
        old.delete();
        File clean = new File(_csvPath + ".temp");
        clean.renameTo(old);
    } catch (FileNotFoundException e) {
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

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