Example usage for java.io Reader close

List of usage examples for java.io Reader close

  1. HOME
  2. Java
  3. java
  4. java.io.*
  5. Reader
  6. close

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:cn.dreampie.common.plugin.coffeescript.compiler.CoffeeCompiler.java

private void init() throws IOException {
    InputStream inputStream = coffeeJs.openConnection().getInputStream();
    try {// w w  w .  j  a va2s.  c  o  m
        try {
            Reader reader = new InputStreamReader(inputStream, "UTF-8");
            try {
                Context context = Context.enter();
                context.setOptimizationLevel(-1); // Without this, Rhino hits a 64K bytecode limit and fails
                try {
                    globalScope = context.initStandardObjects();
                    context.evaluateReader(globalScope, reader, "coffee-script.js", 0, null);
                } finally {
                    Context.exit();
                }
            } finally {
                reader.close();
            }
        } catch (UnsupportedEncodingException e) {
            throw new Error(e); // This should never happen
        } finally {
            inputStream.close();
        }
    } catch (IOException e) {
        throw new Error(e); // This should never happen
    }

}

From source file:edu.washington.gs.skyline.model.quantification.QuantificationTest.java

private List<ReplicateData> readReplicates(String filename) throws Exception {
    Map<String, ReplicateData> replicates = new LinkedHashMap<>();
    Reader reader = new InputStreamReader(QuantificationTest.class.getResourceAsStream(filename));
    try {//from   ww w . j a va  2  s  .  c  o m
        CSVParser parser = new CSVParser(reader, CSVFormat.EXCEL.withHeader());
        for (CSVRecord record : parser.getRecords()) {
            String fileName = record.get("FileName");
            ReplicateData replicate = replicates.get(fileName);
            if (replicate == null) {
                replicate = new ReplicateData();
                replicates.put(fileName, replicate);
            }
        }

    } finally {
        reader.close();
    }
    throw new NotImplementedException();
}

From source file:co.cask.cdap.gateway.collector.NettyFlumeCollectorTest.java

@Test
public void testFlumeEnqueue() throws Exception {
    CConfiguration cConfig = GatewayTestBase.getInjector().getInstance(CConfiguration.class);
    cConfig.setInt(Constants.Gateway.STREAM_FLUME_PORT, 0);
    NettyFlumeCollector flumeCollector = GatewayTestBase.getInjector().getInstance(NettyFlumeCollector.class);
    flumeCollector.startAndWait();//from   www  .  ja v  a 2  s. c o  m
    int port = flumeCollector.getPort();

    String streamName = "flume-stream";
    // Create new stream.
    HttpResponse response = GatewayFastTestsSuite.doPut("/v2/streams/" + streamName);
    Assert.assertEquals(HttpResponseStatus.OK.getCode(), response.getStatusLine().getStatusCode());
    EntityUtils.consume(response.getEntity());

    // Send flume events
    int totalEvents = 12;
    // Send 6 events one by one
    for (int i = 0; i < totalEvents / 2; i++) {
        sendFlumeEvent(port, createFlumeEvent(i, streamName));
    }

    // Send 6 events in a batch
    sendFlumeEvents(port, streamName, totalEvents / 2, totalEvents);

    flumeCollector.stopAndWait();

    // Get all stream events
    response = GatewayFastTestsSuite.doGet("/v2/streams/" + streamName + "/events?limit=13");
    Assert.assertEquals(HttpResponseStatus.OK.getCode(), response.getStatusLine().getStatusCode());

    long lastEventTime = 0L;
    Reader reader = new InputStreamReader(response.getEntity().getContent(), Charsets.UTF_8);
    try {
        List<StreamEvent> events = GSON.fromJson(reader, new TypeToken<List<StreamEvent>>() {
        }.getType());
        Assert.assertEquals(totalEvents, events.size());
        for (int i = 0; i < totalEvents; i++) {
            StreamEvent event = events.get(i);
            Assert.assertEquals(Integer.toString(i), event.getHeaders().get("messageNumber"));
            Assert.assertEquals("This is a message " + i, Charsets.UTF_8.decode(event.getBody()).toString());

            lastEventTime = event.getTimestamp();
        }
    } finally {
        reader.close();
    }

    // Fetch again, there should be no more events
    response = GatewayFastTestsSuite
            .doGet("/v2/streams/" + streamName + "/events?start=" + (lastEventTime + 1L));
    Assert.assertEquals(HttpResponseStatus.NO_CONTENT.getCode(), response.getStatusLine().getStatusCode());
}

From source file:com.mousefeed.eclipse.preferences.PreferenceAccessor.java

/**
 * Loads preferences for the {@link #getOnWrongInvocationMode(String)}.
 *//*from  w ww .ja  v a2 s .  c  o m*/
private void loadActionsOnWrongInvocationMode() {
    final File file = getActionsWrongInvocationModeFile();
    if (!file.exists() || file.length() == 0) {
        // the file not initialized yet
        return;
    }
    Reader reader = null;
    try {
        reader = new FileReader(file);
        final XMLMemento memento = XMLMemento.createReadRoot(reader);
        loadActionsOnWrongInvocationMode(memento);
    } catch (final FileNotFoundException ignore) {
        // the file does not exist yet 
    } catch (final WorkbenchException e) {
        throw new RuntimeException(e);
    } finally {
        try {
            if (reader != null) {
                reader.close();
            }
        } catch (final IOException e) {
            throw new RuntimeException(e);
        }
    }
}

From source file:com.sfs.jbtimporter.JBTProcessor.java

/**
 * Load xml data from the supplied file.
 * /*www  .ja v a  2  s  . com*/
 * @param filepath the filepath
 * @return the string
 * @throws IOException Signals that an I/O exception has occurred.
 */
public final String loadXmlDataFile(final String filepath) throws IOException {

    StringBuffer contents = new StringBuffer();

    Reader reader = new InputStreamReader(new FileInputStream(filepath), "UTF-8");

    int ch;
    do {
        ch = reader.read();
        if (ch != -1) {
            contents.append((char) ch);
        }
    } while (ch != -1);

    reader.close();

    return contents.toString();
}

From source file:com.formkiq.core.equifax.service.EquifaxServiceImpl.java

/**
 * Sends request to Equifax.//w  w w.  jav a2s.  c  o m
 * @param server {@link String}
 * @param send {@link String}
 * @return {@link String}
 * @throws IOException IOException
 */
public String sendToEquifax(final String server, final String send) throws IOException {

    String params = "InputSegments=" + URLEncoder.encode(send, "UTF-8") + "&cmdSubmit=Submit";

    byte[] postData = params.getBytes(StandardCharsets.UTF_8);
    int postDataLength = postData.length;

    URL url = new URL(server);
    HttpURLConnection conn = (HttpURLConnection) url.openConnection();
    conn.setDoOutput(true);
    conn.setInstanceFollowRedirects(false);
    conn.setRequestMethod("POST");
    conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

    conn.setRequestProperty("charset", "utf-8");
    conn.setRequestProperty("Content-Length", Integer.toString(postDataLength));
    conn.setUseCaches(false);

    Reader in = null;
    DataOutputStream wr = null;

    try {
        wr = new DataOutputStream(conn.getOutputStream());
        wr.write(postData);

        StringBuilder sb = new StringBuilder();
        in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "UTF-8"));

        for (int c = in.read(); c != -1; c = in.read()) {
            sb.append((char) c);
        }

        String receive = sb.toString();

        return receive;

    } finally {

        if (in != null) {
            in.close();
        }

        if (wr != null) {
            wr.close();
        }
    }
}

From source file:im.delight.android.webrequest.WebRequest.java

protected String parseResponse(HttpResponse response) throws Exception {
    final Header contentEncoding = response.getFirstHeader("Content-Encoding");
    // if we have a compressed response (GZIP)
    if (contentEncoding != null && contentEncoding.getValue() != null
            && contentEncoding.getValue().equalsIgnoreCase("gzip")) {
        // get the entity and the content length (if any) from the response
        final HttpEntity entity = response.getEntity();
        long contentLength = entity.getContentLength();

        // handle too large or undefined content lengths
        if (contentLength > Integer.MAX_VALUE) {
            throw new Exception("Response too large");
        } else if (contentLength < 0) {
            // use an arbitrary buffer size
            contentLength = 4096;/*from   ww w . j  a v a2 s .c om*/
        }

        // construct a GZIP input stream from the response
        InputStream responseStream = entity.getContent();
        if (responseStream == null) {
            return null;
        }
        responseStream = new GZIPInputStream(responseStream);

        // read from the stream
        Reader reader = new InputStreamReader(responseStream, mCharset);
        CharArrayBuffer buffer = new CharArrayBuffer((int) contentLength);
        try {
            char[] tmp = new char[1024];
            int l;
            while ((l = reader.read(tmp)) != -1) {
                buffer.append(tmp, 0, l);
            }
        } finally {
            reader.close();
        }

        // return the decompressed response text as a string
        return buffer.toString();
    }
    // if we have an uncompressed response
    else {
        // return the response text as a string
        return EntityUtils.toString(response.getEntity(), mCharset);
    }
}

From source file:com.zimbra.common.util.ByteUtil.java

/**
 * Reads a <tt>String</tt> from the given <tt>Reader</tt>.  Reads
 * until the either end of the stream is hit or until <tt>length</tt> characters
 * are read./*ww w .  j  a v  a2  s  .  c om*/
 *
 * @param reader the content source
 * @param length number of characters to read, or <tt>-1</tt> for no limit
 * @param close <tt>true</tt> to close the <tt>Reader</tt> when done
 * @return the content or an empty <tt>String</tt> if no content is available
 */
public static String getContent(Reader reader, int length, boolean close) throws IOException {
    if (reader == null || length == 0)
        return "";

    if (length < 0)
        length = Integer.MAX_VALUE;
    char[] buf = new char[Math.min(1024, length)];
    int totalRead = 0;
    StringBuilder retVal = new StringBuilder(buf.length);

    try {
        while (true) {
            int numToRead = Math.min(buf.length, length - totalRead);
            if (numToRead <= 0)
                break;
            int numRead = reader.read(buf, 0, numToRead);
            if (numRead < 0)
                break;
            retVal.append(buf, 0, numRead);
            totalRead += numRead;
        }
        return retVal.toString();
    } finally {
        if (close) {
            try {
                reader.close();
            } catch (IOException e) {
                ZimbraLog.misc.warn("Unable to close Reader", e);
            }
        }
    }
}

From source file:com.bigdata.gom.TestRemoteGOM.java

void print(final URL n3) throws IOException {
    if (log.isInfoEnabled()) {
        InputStream in = n3.openConnection().getInputStream();
        Reader reader = new InputStreamReader(in);
        try {/*from   ww  w.j  ava  2  s  . c om*/
            char[] buf = new char[256];
            int rdlen = 0;
            while ((rdlen = reader.read(buf)) > -1) {
                if (rdlen == 256)
                    System.out.print(buf);
                else
                    System.out.print(new String(buf, 0, rdlen));
            }
        } finally {
            reader.close();
        }
    }
}

From source file:cn.dreampie.coffeescript.compiler.CoffeeCompiler.java

private void init() throws IOException {
    InputStream inputStream = null;
    if (coffeeJs == null) {
        logger.info("coffee-script file not found");
        inputStream = this.getClass().getResourceAsStream("/lib/coffee-script-1.7.1.min.js");
    } else/*from  w w  w.  ja v  a2 s. co m*/
        inputStream = coffeeJs.openConnection().getInputStream();
    try {
        try {
            Reader reader = new InputStreamReader(inputStream, "UTF-8");
            try {
                Context context = Context.enter();
                context.setOptimizationLevel(-1); // Without this, Rhino hits a 64K bytecode limit and fails
                try {
                    globalScope = context.initStandardObjects();
                    context.evaluateReader(globalScope, reader, "coffee-script.js", 0, null);
                } finally {
                    Context.exit();
                }
            } finally {
                reader.close();
            }
        } catch (UnsupportedEncodingException e) {
            throw new Error(e); // This should never happen
        } finally {
            inputStream.close();
        }
    } catch (IOException e) {
        throw new Error(e); // This should never happen
    }

}