Example usage for java.io Writer close

List of usage examples for java.io Writer close

  1. HOME
  2. Java
  3. java
  4. java.io.*
  5. Writer
  6. 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:de.fenvariel.mavenfreemarker.FreemarkerPlugin.java

private void generate(Template template, File file, Map<String, Object> data, Map<String, Pattern> keepPatterns)
        throws MojoExecutionException {
    try {//from   ww w .  ja  v  a 2 s.  c  o m

        file.getParentFile().mkdirs();

        includeKeepSections(file, keepPatterns, data);

        Writer writer = new FileWriter(file);
        try {
            template.process(data, writer);
            writer.flush();
            System.out.println("Written " + file.getCanonicalPath());
        } finally {
            writer.close();
        }
    } catch (Exception ex) {
        throw new MojoExecutionException("error generating file: " + file.getAbsolutePath() + " from template "
                + template.getName() + " and source " + data, ex);
    }
}

From source file:com.netxforge.oss2.config.LinkdConfigFactory.java

/** {@inheritDoc} */
protected synchronized void saveXml(String xml) throws IOException {
    if (xml != null) {
        long timestamp = System.currentTimeMillis();
        final File cfgFile = ConfigFileConstants.getFile(ConfigFileConstants.LINKD_CONFIG_FILE_NAME);
        LogUtils.debugf(LinkdConfigFactory.class, "saveXml: saving config file at %d: %s", timestamp,
                cfgFile.getPath());/*from w  ww.  j  a  v  a 2 s.  c o  m*/
        final Writer fileWriter = new OutputStreamWriter(new FileOutputStream(cfgFile), "UTF-8");
        fileWriter.write(xml);
        fileWriter.flush();
        fileWriter.close();
        LogUtils.debugf(LinkdConfigFactory.class, "saveXml: finished saving config file: %s",
                cfgFile.getPath());
    }
}

From source file:com.streamsets.datacollector.util.TestConfiguration.java

@Test
public void testRefsConfigs() throws IOException {
    File dir = new File("target", UUID.randomUUID().toString());
    Assert.assertTrue(dir.mkdirs());//from   w  w w . j av  a  2 s  . co  m
    Configuration.setFileRefsBaseDir(dir);

    Writer writer = new FileWriter(new File(dir, "hello.txt"));
    IOUtils.write("secret", writer);
    writer.close();
    Configuration conf = new Configuration();

    String home = System.getenv("HOME");

    conf.set("a", "@hello.txt@");
    conf.set("aa", "${file(\"hello.txt\")}");
    conf.set("aaa", "${file('hello.txt')}");
    conf.set("b", "$HOME$");
    conf.set("bb", "${env(\"HOME\")}");
    conf.set("bbb", "${env('HOME')}");
    conf.set("x", "X");
    Assert.assertEquals("secret", conf.get("a", null));
    Assert.assertEquals("secret", conf.get("aa", null));
    Assert.assertEquals("secret", conf.get("aaa", null));
    Assert.assertEquals(home, conf.get("b", null));
    Assert.assertEquals(home, conf.get("bb", null));
    Assert.assertEquals(home, conf.get("bbb", null));
    Assert.assertEquals("X", conf.get("x", null));

    Configuration uconf = conf.getUnresolvedConfiguration();
    Assert.assertEquals("@hello.txt@", uconf.get("a", null));
    Assert.assertEquals("${file(\"hello.txt\")}", uconf.get("aa", null));
    Assert.assertEquals("${file('hello.txt')}", uconf.get("aaa", null));
    Assert.assertEquals("$HOME$", uconf.get("b", null));
    Assert.assertEquals("${env(\"HOME\")}", uconf.get("bb", null));
    Assert.assertEquals("${env('HOME')}", uconf.get("bbb", null));
    Assert.assertEquals("X", uconf.get("x", null));

    writer = new FileWriter(new File(dir, "config.properties"));
    conf.save(writer);
    writer.close();

    conf = new Configuration();
    Reader reader = new FileReader(new File(dir, "config.properties"));
    conf.load(reader);
    reader.close();

    uconf = conf.getUnresolvedConfiguration();
    Assert.assertEquals("@hello.txt@", uconf.get("a", null));
    Assert.assertEquals("${file(\"hello.txt\")}", uconf.get("aa", null));
    Assert.assertEquals("${file('hello.txt')}", uconf.get("aaa", null));
    Assert.assertEquals("$HOME$", uconf.get("b", null));
    Assert.assertEquals("${env(\"HOME\")}", uconf.get("bb", null));
    Assert.assertEquals("${env('HOME')}", uconf.get("bbb", null));
    Assert.assertEquals("X", uconf.get("x", null));
}

From source file:org.matsim.contrib.parking.parkingchoice.lib.GeneralLib.java

/**
 * Write out a list of Strings/*from ww  w .j  a  v a  2s. c om*/
 * 
 * after each String in the list a "\n" is added.
 * 
 * @param list
 * @param fileName
 */
public static void writeList(ArrayList<String> list, String fileName) {
    Writer writer = null;
    if (fileName.toLowerCase(Locale.ROOT).endsWith(".gz")) {
        writer = IOUtils.getBufferedWriter(fileName);
    }

    try {
        if (writer == null) {
            FileOutputStream fos = new FileOutputStream(fileName);
            writer = new OutputStreamWriter(fos);
        }
        char[] charArray = Lists.getCharsOfAllArrayItemsWithNewLineCharacterInbetween(list);
        writer.write(charArray);

        writer.flush();
        writer.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:com.cloudera.sqoop.manager.CubridManagerExportTest.java

protected void createTestFile(String filename, String[] lines) throws IOException {
    File testdir = new File(getWarehouseDir());
    if (!testdir.exists()) {
        testdir.mkdirs();/* w  ww . java2 s .  co m*/
    }
    File file = new File(getWarehouseDir() + "/" + filename);
    Writer output = new BufferedWriter(new FileWriter(file));
    for (String line : lines) {
        output.write(line);
        output.write("\n");
    }
    output.close();
}

From source file:cz.incad.kramerius.k5indexer.Commiter.java

/**
 * Reads data from the data reader and posts it to solr, writes the response
 * to output/*  www . j a v a  2s .co m*/
 */
private void postData(URL url, Reader data, String contentType, StringBuilder output) throws Exception {
    HttpURLConnection urlc = null;

    try {
        urlc = (HttpURLConnection) url.openConnection();
        urlc.setConnectTimeout(config.getInt("http.timeout", 10000));
        try {
            urlc.setRequestMethod("POST");
        } catch (ProtocolException e) {
            throw new Exception("Shouldn't happen: HttpURLConnection doesn't support POST??", e);
        }
        urlc.setDoOutput(true);
        urlc.setDoInput(true);
        urlc.setUseCaches(false);
        urlc.setAllowUserInteraction(false);
        urlc.setRequestProperty("Content-type", contentType);

        OutputStream out = urlc.getOutputStream();

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

        InputStream in = urlc.getInputStream();
        int status = urlc.getResponseCode();
        StringBuilder errorStream = new StringBuilder();
        try {
            if (status != HttpURLConnection.HTTP_OK) {
                errorStream.append("postData URL=").append(solrUrl).append(" HTTP response code=")
                        .append(status).append(" ");
                throw new Exception("URL=" + solrUrl + " HTTP response code=" + status);
            }
            Reader reader = new InputStreamReader(in);
            pipeString(reader, output);
            reader.close();
        } catch (IOException e) {
            throw new Exception("IOException while reading response", e);
        } finally {
            if (in != null) {
                in.close();
            }
        }

        InputStream es = urlc.getErrorStream();
        if (es != null) {
            try {
                Reader reader = new InputStreamReader(es);
                pipeString(reader, errorStream);
                reader.close();
            } catch (IOException e) {
                throw new Exception("IOException while reading response", e);
            } finally {
                if (es != null) {
                    es.close();
                }
            }
        }
        if (errorStream.length() > 0) {
            throw new Exception("postData error: " + errorStream.toString());
        }

    } catch (IOException e) {
        throw new Exception("Solr has throw an error. Check tomcat log. " + e);
    } finally {
        if (urlc != null) {
            urlc.disconnect();
        }
    }
}

From source file:edu.ku.brc.specify.extras.FishBaseInfoGetter.java

/**
 * Performs a "generic" HTTP request and fill member variable with results use
 * "getDigirResultsetStr" to get the results as a String
 *
 *///from   w  w  w.j a  v a2  s.co m
public void getDOMDoc(final String url, final InfoType infoType) {
    dom = null;
    String fileName = tmpDir + File.separator + genus + "_" + species + "_" + infoType.toString() + ".xml";
    //System.out.println(fileName);
    File file = new File(fileName);
    if (file.exists()) {
        try {
            dom = XMLHelper.readFileToDOM4J(file);

        } catch (Exception ex) {
            edu.ku.brc.af.core.UsageTracker.incrHandledUsageCount();
            edu.ku.brc.exceptions.ExceptionTracker.getInstance().capture(FishBaseInfoGetter.class, ex);
            ex.printStackTrace();
            status = ErrorCode.Error;
        }

    } else {
        ////System.out.println("http://www.fishbase.org.ph/webservice/Species/SpeciesSummary.asp?Genus=Etheostoma&Species=ramseyi");
        //System.out.println(url);
        byte[] bytes = super.doHTTPRequest(url);

        data = new String(bytes);
        int inx = data.indexOf("<?");
        if (inx > -1) {
            data = data.substring(inx, data.length());

            //System.out.println(data);
            try {
                Writer output = new BufferedWriter(new FileWriter(file));
                output.write(data);
                output.flush();
                output.close();

                // Is is cheating and slow, but I will do it for now
                // XXX FIXME!
                dom = XMLHelper.readFileToDOM4J(file);

            } catch (Exception ex) {
                edu.ku.brc.af.core.UsageTracker.incrHandledUsageCount();
                edu.ku.brc.exceptions.ExceptionTracker.getInstance().capture(FishBaseInfoGetter.class, ex);
                ex.printStackTrace();
                status = ErrorCode.Error;
            }

        } else {
            status = ErrorCode.Error;
            data = null;
        }

    }
}

From source file:com.github.rwitzel.streamflyer.experimental.stateful.util.IdleModifierStatePerformanceTest.java

private void assertOverheadByWriter(String input, double expectedMaxSpentTime, double expectedMaxOverhead)
        throws Exception {

    // setup: create modifier and writer
    Writer originalWriter = new StringWriter();
    ModifyingWriter writer = new ModifyingWriter(originalWriter, createIdleModifier());

    // write the stream to an output stream
    long start = System.currentTimeMillis();
    for (int index = 0; index < input.length(); index++) {
        writer.append(input.charAt(index));
    }//from ww  w  . j a  v a2 s.  c o m
    writer.flush();
    writer.close();
    long end = System.currentTimeMillis();

    originalWriter.toString();

    Writer writer2 = new StringWriter();

    // read the stream into an output stream
    long start2 = System.currentTimeMillis();
    for (int index = 0; index < input.length(); index++) {
        writer2.append(input.charAt(index));
    }
    writer2.flush();
    writer2.close();
    long end2 = System.currentTimeMillis();

    long overhead = (end - start) - (end2 - start2);

    assertTime(end - start, expectedMaxSpentTime, "Time spent by ModifyingWriter:");
    assertTime(overhead, expectedMaxOverhead, "Overhead   by ModifyingWriter:");
}

From source file:org.springframework.data.couchbase.core.convert.translation.JacksonTranslationService.java

/**
 * Encode a {@link CouchbaseStorable} to a JSON string.
 *
 * @param source the source document to encode.
 *
 * @return the encoded JSON String.//from w w  w .  jav a2s . c  o  m
 */
@Override
public final Object encode(final CouchbaseStorable source) {
    Writer writer = new StringWriter();

    try {
        JsonGenerator generator = factory.createGenerator(writer);
        encodeRecursive(source, generator);
        generator.close();
        writer.close();
    } catch (IOException ex) {
        throw new RuntimeException("Could not encode JSON", ex);
    }

    return writer.toString();
}

From source file:com.tinspx.util.json.JSONParserTest.java

static void writeFormatted(String file, Object value) throws IOException {
    Writer caw = new BufferedWriter(new FileWriter(file), 1024 * 16);
    //        caw.write("start json\n");
    IndentingWriter.indentingBuilder().build().writeTo(caw, value);
    //        caw.write("\nend of json\n");
    caw.flush();/* ww  w  .j  a va  2  s .  c o  m*/
    caw.close();
}