Example usage for java.io Reader close

List of usage examples for java.io Reader close

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Introduction

In this page you can find the example usage for java.io Reader close.

Prototype

public abstract void close() throws IOException;

Source Link

Document

Closes the stream and releases any system resources associated with it.

Usage

From source file:gda.device.detector.mythen.data.MythenDataFileUtils.java

protected static double[][] getDataFromReaderUsingStreamTokenizer(Reader r, FileType type) throws IOException {
    try {//from ww w.ja  v a 2  s  .  com
        List<double[]> data = new Vector<double[]>();
        StreamTokenizer st = new StreamTokenizer(r);
        while (st.nextToken() != StreamTokenizer.TT_EOF) {
            double angle = st.nval;
            st.nextToken();
            double count = st.nval;
            //st.nextToken();
            if (type == FileType.PROCESSED) {
                st.nextToken();
                double error = st.nval;
                data.add(new double[] { angle, count, error });
            } else if (type == FileType.PROCESSED_WITH_CHANNELS) {
                st.nextToken();
                double error = st.nval;
                double channel = st.nval;
                data.add(new double[] { angle, count, error, channel });
            } else {
                data.add(new double[] { angle, count });
            }
        }
        return data.toArray(new double[data.size()][]);
    } finally {
        try {
            r.close();
        } catch (IOException e) {
            // ignore
        }
    }
}

From source file:dk.dr.radio.data.JsonIndlaesning.java

    sInputStreamSomStreng(InputStream is) throws IOException, UnsupportedEncodingException {

  // Det kan vre ndvendigt at hoppe over BOM mark - se http://android.forums.wordpress.org/topic/xml-pull-error?replies=2
  //is.read(); is.read(); is.read(); // - dette virker kun hvis der ALTID er en BOM
  // Hop over BOM - hvis den er der!
  is = new BufferedInputStream(is);  // bl.a. FileInputStream understtter ikke mark, s brug BufferedInputStream
  is.mark(1); // vi har faktisk kun brug for at sge n byte tilbage
  if (is.read() == 0xef) {
    is.read();/*from  w  ww .j a  v a 2  s.co m*/
    is.read();
  } // Der var en BOM! Ls de sidste 2 byte
  else is.reset(); // Der var ingen BOM - hop tilbage til start


  final char[] buffer = new char[0x3000];
  StringBuilder out = new StringBuilder();
  Reader in = new InputStreamReader(is, "UTF-8");
  int read;
  do {
    read = in.read(buffer, 0, buffer.length);
    if (read > 0) {
      out.append(buffer, 0, read);
    }
  } while (read >= 0);
  in.close();
  return out.toString();
}

From source file:com.googlecode.fascinator.storage.filesystem.FileSystemPayload.java

/**
 * Read metadata from disk into memory if it exists
 *
 *//*w  ww . j a v a2 s .co  m*/
public void readExistingMetadata() {
    if (metaFile.exists()) {
        Properties props = new Properties();
        Reader metaReader;
        try {
            metaReader = new FileReader(metaFile);
            props.load(metaReader);
            metaReader.close();
        } catch (FileNotFoundException ex) {
            log.error("Failed reading metadata file", ex);
        } catch (IOException ex) {
            log.error("Failed accessing metadata file", ex);
        }

        setId(props.getProperty("id", getId()));
        String type = props.getProperty("payloadType", DEFAULT_PAYLOAD_TYPE.toString());
        setType(PayloadType.valueOf(type));
        setLabel(props.getProperty("label", getId()));

        String link = props.getProperty("linked", String.valueOf(isLinked()));
        setLinked(Boolean.parseBoolean(link));
        if (isLinked()) {
            try {
                long fileSize = dataFile.length();
                // Arbitrary test for length of link. We have observed
                //  instances of real data being treated as a link.
                if (fileSize > 2000) {
                    log.debug(
                            "Linked file '{}' is unusually large. It is"
                                    + " most likely not really linked and is corrupt",
                            dataFile.getAbsolutePath());
                } else {
                    String linkPath = FileUtils.readFileToString(dataFile);
                    File linkFile = new File(linkPath);
                    if (linkFile.exists()) {
                        setContentType(MimeTypeUtil.getMimeType(linkFile));
                    } else {
                        log.debug("Linked file '{}' no longer exists!", linkFile.getAbsolutePath());
                    }
                }
            } catch (IOException ioe) {
                log.warn("Failed to get linked file", ioe);
            }
        } else {
            setContentType(MimeTypeUtil.getMimeType(dataFile));
        }
    } else {
        writeMetadata();
    }
}

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());// w w w  .j  av  a  2  s. c  o 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:dk.ange.octave.exec.OctaveReaderCallable.java

@Override
public Void call() {
    final Reader reader = new OctaveExecuteReader(processReader, spacer);
    try {// w  w  w .  j ava 2 s .c  o m
        readFunctor.doReads(reader);
    } catch (final IOException e) {
        final String message = "IOException from ReadFunctor";
        log.debug(message, e);
        throw new OctaveIOException(message, e);
    } finally {
        try {
            reader.close();
        } catch (final IOException e) {
            final String message = "IOException during close";
            log.debug(message, e);
            throw new OctaveIOException(message, e);
        }
    }
    return null;
}

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//  w  ww .j a v a  2  s  . c  o 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:net.ontopia.topicmaps.core.OccurrenceTest.java

public void testReader() throws Exception {
    // read file and store in object
    File filein = TestFileUtils.getTransferredTestInputFile("various", "clob.xml");
    File fileout = TestFileUtils.getTestOutputFile("various", "clob.xml.out");

    long inlen = filein.length();
    Reader ri = new FileReader(filein);
    try {/*from   w w w  .  ja v a 2 s. c  om*/
        occurrence.setReader(ri, inlen, DataTypes.TYPE_BINARY);
    } finally {
        try {
            ri.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        ;
    }
    assertTrue("Occurrence datatype is incorrect",
            Objects.equals(DataTypes.TYPE_BINARY, occurrence.getDataType()));

    // read and decode content
    Reader ro = occurrence.getReader();
    try {
        Writer wo = new FileWriter(fileout);
        try {
            IOUtils.copy(ro, wo);
        } finally {
            wo.close();
        }
    } finally {
        ro.close();
    }
    assertTrue("Reader value is null", ro != null);
    try {
        ri = new FileReader(filein);
        ro = new FileReader(fileout);
        long outlen = occurrence.getLength();
        try {
            assertTrue("Occurrence value put in is not the same as the one we get out.",
                    IOUtils.contentEquals(ro, ri));
            assertTrue("Occurrence value length is different", inlen == outlen);
        } finally {
            ri.close();
        }
    } finally {
        ro.close();
    }
}

From source file:de.innovationgate.wgpublisher.design.fs.FileSystemDesignProvider.java

private static void resourceInToOut(InputStream in, String sourceEncoding, OutputStream out,
        String targetEncoding) throws UnsupportedEncodingException, IOException {
    if (sourceEncoding != null && targetEncoding != null) {
        Reader inReader = new InputStreamReader(in, sourceEncoding);
        Writer outWriter = new OutputStreamWriter(out, targetEncoding);
        WGUtils.inToOut(inReader, outWriter, 4096);
        inReader.close();
        outWriter.flush();/*from w w  w . j ava  2 s  .  c  o m*/
        outWriter.close();
    } else {
        WGUtils.inToOut(in, out, 4096);
        in.close();
        out.flush();
        out.close();
    }
}

From source file:org.eel.kitchen.jsonschema.GsonProviderTest.java

@DataProvider
public Iterator<Object[]> getGson() throws IOException {
    final Set<Object[]> set = Sets.newHashSet();
    final Gson gson = new Gson();
    final InputStream in = getClass().getResourceAsStream("/provider/gson.json");

    final Reader reader = new InputStreamReader(in);
    try {/*from w w w  . j a v  a 2 s .  c om*/
        // Unlike Jackson, Gson cannot read to its own format :/
        final JsonElement[] array = gson.fromJson(reader, JsonElement[].class);
        for (final JsonElement element : array)
            set.add(new Object[] { element });
        return set.iterator();
    } finally {
        reader.close();
        in.close();
    }
}

From source file:de.uzk.hki.da.metadata.XMPMetadataStructure.java

public XMPMetadataStructure(Path workPath, File metadataFile, List<de.uzk.hki.da.model.Document> documents)
        throws FileNotFoundException, JDOMException, IOException {
    super(workPath, metadataFile, documents);

    logger.debug("Instantiate new xmp metadata structure with metadata file " + metadataFile.getAbsolutePath()
            + " ... ");

    xmpFile = metadataFile;/*from   w w  w .j av  a 2 s  . co m*/
    currentDocuments = documents;

    SAXBuilder builder = XMLUtils.createNonvalidatingSaxBuilder();
    FileInputStream fileInputStream = new FileInputStream(Path.makeFile(workPath, xmpFile.getPath()));
    BOMInputStream bomInputStream = new BOMInputStream(fileInputStream);
    Reader reader = new InputStreamReader(bomInputStream, "UTF-8");
    InputSource is = new InputSource(reader);
    is.setEncoding("UTF-8");
    rdfDoc = builder.build(is);

    descriptionElements = getXMPDescriptionElements();
    fileInputStream.close();
    bomInputStream.close();
    reader.close();
}