Example usage for java.io Reader 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:Main.java

public static String toString(InputStream is) {
    StringBuilder out = new StringBuilder();
    char[] buffer = new char[512];
    if (is != null) {
        try {//  w  ww . jav a 2 s  .  c  o m
            Reader in = new InputStreamReader(is, "UTF-8");
            try {
                int n;
                while ((n = in.read(buffer, 0, buffer.length)) >= 0) {
                    out.append(buffer, 0, n);
                }
            } finally {
                in.close();
            }
        } catch (IOException ex) {
            out.append("error");
        }
    }
    return out.toString();
}

From source file:Main.java

public static void copyCompletely(Reader input, Writer output) throws IOException {
    char[] buf = new char[8192];
    while (true) {
        int length = input.read(buf);
        if (length < 0)
            break;
        output.write(buf, 0, length);/* w  w  w  . j  a  v a2s  . c o m*/
    }

    try {
        input.close();
    } catch (IOException ignore) {
    }
    try {
        output.close();
    } catch (IOException ignore) {
    }
}

From source file:com.swordlord.gozer.file.GozerFileLoader.java

public static String convertInputStreamToString(InputStream is) {
    String strReturn = "";

    if (is != null) {
        Writer writer = new StringWriter();

        char[] buffer = new char[1024];
        try {//  ww w .  j a va 2  s . c  o  m
            Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));

            int n;
            while ((n = reader.read(buffer)) != -1) {
                writer.write(buffer, 0, n);
            }

            reader.close();
            strReturn = writer.toString();
            writer.close();
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {

        }
    }

    return strReturn;
}

From source file:com.cloudbees.diff.UnifiedDiff.java

private static void copyStreamsCloseAll(Writer writer, Reader reader) throws IOException {
    IOUtils.copy(reader, writer);//  w w  w.ja  v a2s  .  c om
    writer.close();
    reader.close();
}

From source file:co.cask.cdap.client.rest.RestClient.java

/**
 * Utility method for converting {@link org.apache.http.HttpEntity} HTTP entity content to String.
 *
 * @param httpEntity {@link org.apache.http.HttpEntity}
 * @return {@link String} generated from input content stream
 * @throws IOException if HTTP entity is not available
 *///from w  w w . j ava  2  s  .  c o m
public static String toString(HttpEntity httpEntity) throws IOException {
    if (httpEntity == null || httpEntity.getContent() == null) {
        throw new IOException("Empty HttpEntity is received.");
    }
    Charset charset = Charsets.UTF_8;
    ContentType contentType = ContentType.get(httpEntity);
    if (contentType != null && contentType.getCharset() != null) {
        charset = contentType.getCharset();
    }
    Reader reader = new InputStreamReader(httpEntity.getContent(), charset);
    try {
        return CharStreams.toString(reader);
    } finally {
        reader.close();
    }
}

From source file:Main.java

/**
 * Parses the given input stream and returns the corresponding desirialized
 * XML document./*  w ww.  j a  v a 2 s.  c  o  m*/
 * 
 * @param reader the reader containing the serialized XML document
 * @return the deserialized DOM document
 * @throws Exception
 */
public static Document readXML(Reader reader) throws Exception {
    try {
        DocumentBuilder builder = getDocumentBuilder();
        InputSource source = new InputSource(reader);
        Document doc = builder.parse(source);
        return doc;
    } finally {
        reader.close();
    }
}

From source file:Main.java

public static String slurp(final InputStream is, final int bufferSize) {
    final char[] buffer = new char[bufferSize];
    final StringBuilder out = new StringBuilder();
    try {/*from   ww w  . ja  v  a 2s.  c  om*/
        final Reader in = new InputStreamReader(is, "UTF-8");
        try {
            for (;;) {
                int rsz = in.read(buffer, 0, buffer.length);
                if (rsz < 0)
                    break;
                out.append(buffer, 0, rsz);
            }
        } finally {
            in.close();
        }
    } catch (Exception ex) {
    }
    return out.toString();
}

From source file:Main.java

/**
 * Copy a reader to writer./*from   www .  j a  v a  2 s.c  o m*/
 */
private static void copy(Reader in, Writer out) throws IOException {
    try {
        int bytesRead;
        char[] buffer = new char[COPY_BUFFER_SIZE];

        while ((bytesRead = in.read(buffer)) != -1) {
            out.write(buffer, 0, bytesRead);
        }

        out.flush();
    } finally {
        in.close();
        out.close();
    }
}

From source file:Main.java

/**
 * Copies characters from a reader to a writer. When the reading is done,
 * the reader is closed.//from   w ww  .j a  v a 2 s  .com
 * 
 * @param reader
 *            The reader.
 * @param writer
 *            The writer.
 * @throws IOException
 */
public static void copy(Reader reader, java.io.Writer writer) throws IOException {
    int charsRead;
    char[] buffer = new char[2048];

    while ((charsRead = reader.read(buffer)) > 0) {
        writer.write(buffer, 0, charsRead);
    }

    writer.flush();
    reader.close();
}

From source file:com.thruzero.common.core.utils.FileUtilsExt.java

/**
 * If {@code reader} not {@code null}, close it and ignore {@code IOException}
 *
 * @param reader//from w w w. j a va 2s . c  o m
 */
public static void closeReader(final Reader reader) {
    if (reader != null) {
        try {
            reader.close();
        } catch (IOException e) {
            // ignore IOException
        }
    }
}