Example usage for java.io ByteArrayInputStream read

Introduction

In this page you can find the example usage for java.io ByteArrayInputStream read.

Prototype

public synchronized int read(byte b[], int off, int len) 

Source Link

Document

Reads up to len bytes of data into an array of bytes from this input stream.

Usage

From source file:com.gs.tools.doc.extractor.core.html.HTMLDocumentExtractor.java

private void writeTo(byte[] data, OutputStream outputStream) throws IOException {
    try {// ww  w .j a va  2s .  co m
        ByteArrayInputStream bais = new ByteArrayInputStream(data);
        byte[] buffer = new byte[1024 * 1024];
        int count = 0;
        while ((count = bais.read(buffer, 0, 1024 * 1024)) > 0) {
            outputStream.write(buffer, 0, count);
        }
        bais.close();
    } finally {
        outputStream.close();
    }

}

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From source file:com.phonegap.FileUtils.java

/**
 * Write contents of file.//from  ww w.  j  av a 2s  . c o m
 * 
 * @param filename         The name of the file.
 * @param data            The contents of the file.
 * @param append         T=append, F=overwrite
 * @throws FileNotFoundException, IOException
 */
public void writeAsText(String filename, String data, boolean append)
        throws FileNotFoundException, IOException {
    String FilePath = filename;
    byte[] rawData = data.getBytes();
    ByteArrayInputStream in = new ByteArrayInputStream(rawData);
    FileOutputStream out = new FileOutputStream(FilePath, append);
    byte buff[] = new byte[rawData.length];
    in.read(buff, 0, buff.length);
    out.write(buff, 0, rawData.length);
    out.flush();
    out.close();
}

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From source file:org.lockss.util.TestCharsetUtil.java

/**
 * Method: joinStreamsWithCharset(byte[] buf,
 *                                InputStream tail, String charset)
 *///  w w  w.  j  a v  a 2  s.c  o  m
public void testJoinStreamsWithCharset() throws Exception {
    byte[] buf = new byte[100]; // create an input stream
    String buf_string;
    ByteArrayInputStream bais = new ByteArrayInputStream(HTML_FILE.getBytes("UTF-8"));
    // read the first 100 bytes.
    int in_length = bais.available();
    bais.read(buf, 0, buf.length);
    buf_string = new String(buf, "UTF-8");
    int str_length = buf_string.length();
    assertEquals(in_length - buf.length, bais.available());
    // create a new CharsetReader
    Reader rdr = CharsetUtil.joinStreamsWithCharset(buf, bais, "UTF-8");
    char[] charbuf = new char[str_length];
    // read in the chars that we already read...
    rdr.read(charbuf);
    assertEquals(buf_string.toCharArray(), charbuf);
}

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From source file:com.chenshu.compress.CompressOldTest.java

@Benchmark
public int jdkGzip2Compress() {
    ByteArrayInputStream bin = null;
    ByteArrayOutputStream bout = null;
    GZIPOutputStream gzout = null;
    try {//from  w  w  w.  j a v  a 2s  .com
        bin = new ByteArrayInputStream(data);
        bout = new ByteArrayOutputStream(data.length);
        gzout = new GZIPOutputStream(bout) {
            {
                def.setLevel(level);
            }
        };
        int count;
        byte ret[] = new byte[1024];
        while ((count = bin.read(ret, 0, 1024)) != -1) {
            gzout.write(ret, 0, count);
        }
        gzout.finish();
        gzout.flush();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (gzout != null) {
            try {
                gzout.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (bout != null) {
            try {
                bout.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }
    byte[] bs = bout.toByteArray();
    return bs.length;
}

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From source file:es.jamisoft.comun.utils.compression.Jar.java

private void metaInf() {
    byte[] buf = "Manifest-Version: 1.0\r\nX-COMMENT: www.jamisoft.es - Jose Antonio Jamilena Daza".getBytes();
    ByteArrayInputStream manifest = new ByteArrayInputStream(buf);
    String asDir = "/META-INF/";
    try {/*from w  ww  .ja  v a  2s .c o  m*/
        String lsRutaAbs = "/META-INF/manifest.mf";
        //String lsRutaRelat = lsRutaAbs.substring(isDirectorioRelativoComp.length(), lsRutaAbs.length());
        String lsRutaRelat = lsRutaAbs;
        JarArchiveEntry entry = new JarArchiveEntry(lsRutaRelat);

        sout.putArchiveEntry(entry);

        byte buffer[] = new byte[2048];
        int liLeido = -1;
        int numCaracteresLeidos = 0;

        while ((liLeido = manifest.read(buffer, 0, 2048)) != -1) {
            sout.write(buffer, 0, liLeido);
        }

        sout.flush();
        sout.closeArchiveEntry();
        manifest.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:com.cyberway.issue.io.arc.ARCRecord.java

/**
* Read http header if present. Technique borrowed from HttpClient HttpParse
* class.//w w  w .  j  a  v a2 s  . co  m
* 
* @return ByteArrayInputStream with the http header in it or null if no
*         http header.
* @throws IOException
*/
private InputStream readHttpHeader() throws IOException {
    // If judged a record that doesn't have an http header, return
    // immediately.
    if (!getHeader().getUrl().startsWith("http") || getHeader().getLength() <= MIN_HTTP_HEADER_LENGTH) {
        return null;
    }
    byte[] statusBytes = HttpParser.readRawLine(getIn());
    int eolCharCount = getEolCharsCount(statusBytes);
    if (eolCharCount <= 0) {
        throw new IOException("Failed to read http status where one was expected: "
                + ((statusBytes == null) ? "" : new String(statusBytes)));
    }
    String statusLine = EncodingUtil.getString(statusBytes, 0, statusBytes.length - eolCharCount,
            ARCConstants.DEFAULT_ENCODING);
    if ((statusLine == null) || !StatusLine.startsWithHTTP(statusLine)) {
        if (statusLine.startsWith("DELETED")) {
            // Some old ARCs have deleted records like following:
            // http://vireo.gatech.edu:80/ebt-bin/nph-dweb/dynaweb/SGI_Developer/SGITCL_PG/@Generic__BookTocView/11108%3Btd%3D2 130.207.168.42 19991010131803 text/html 29202
            // DELETED_TIME=20000425001133_DELETER=Kurt_REASON=alexalist
            // (follows ~29K spaces)
            // For now, throw a RecoverableIOException so if iterating over
            // records, we keep going.  TODO: Later make a legitimate
            // ARCRecord from the deleted record rather than throw
            // exception.
            throw new DeletedARCRecordIOException(statusLine);
        } else {
            throw new IOException("Failed parse of http status line.");
        }
    }
    this.httpStatus = new StatusLine(statusLine);

    // Save off all bytes read.  Keep them as bytes rather than
    // convert to strings so we don't have to worry about encodings
    // though this should never be a problem doing http headers since
    // its all supposed to be ascii.
    ByteArrayOutputStream baos = new ByteArrayOutputStream(statusBytes.length + 4 * 1024);
    baos.write(statusBytes);

    // Now read rest of the header lines looking for the separation
    // between header and body.
    for (byte[] lineBytes = null; true;) {
        lineBytes = HttpParser.readRawLine(getIn());
        eolCharCount = getEolCharsCount(lineBytes);
        if (eolCharCount <= 0) {
            throw new IOException(
                    "Failed reading http headers: " + ((lineBytes != null) ? new String(lineBytes) : null));
        }
        // Save the bytes read.
        baos.write(lineBytes);
        if ((lineBytes.length - eolCharCount) <= 0) {
            // We've finished reading the http header.
            break;
        }
    }

    byte[] headerBytes = baos.toByteArray();
    // Save off where body starts.
    this.getMetaData().setContentBegin(headerBytes.length);
    ByteArrayInputStream bais = new ByteArrayInputStream(headerBytes);
    if (!bais.markSupported()) {
        throw new IOException("ByteArrayInputStream does not support mark");
    }
    bais.mark(headerBytes.length);
    // Read the status line.  Don't let it into the parseHeaders function.
    // It doesn't know what to do with it.
    bais.read(statusBytes, 0, statusBytes.length);
    this.httpHeaders = HttpParser.parseHeaders(bais, ARCConstants.DEFAULT_ENCODING);
    this.getMetaData().setStatusCode(Integer.toString(getStatusCode()));
    bais.reset();
    return bais;
}

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From source file:org.wso2.carbon.analytics.datasource.core.AnalyticsFileSystemTest.java

private void fileReadSeekPosition(String path, int n, int chunk, int... locs) throws IOException {
    byte[] data = generateData(n);
    OutputStream out = this.analyticsFileSystem.createOutput(path);
    out.write(data, 0, data.length);//from  w w  w  . j a v a2  s .  c  o  m
    out.close();
    byte[] din = new byte[chunk];
    ByteArrayInputStream bin = new ByteArrayInputStream(data);
    byte[] din2 = new byte[chunk];
    DataInput in = this.analyticsFileSystem.createInput(path);
    int count, count2;
    for (int i : locs) {
        in.seek(i);
        Assert.assertEquals(in.getPosition(), i);
        count = in.read(din, 0, din.length);
        Assert.assertEquals(in.getPosition(), i + (count < 0 ? 0 : count));
        bin.reset();
        bin.skip(i);
        count2 = bin.read(din2, 0, din2.length);
        Assert.assertEquals(count, count2);
        Assert.assertEquals(din, din2);
    }
}

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From source file:com.lmco.ddf.endpoints.rest.TestRestEndpoint.java

/**
 * Converts a ByteArrayInputStream into a readable/printable String
 * @param content//  ww w. j ava2s  .  c o  m
 * @return
 */
protected String byteArrayConvert(ByteArrayInputStream content) {
    int streamSize = content.available();
    char[] charArray = new char[streamSize];
    byte[] byteArray = new byte[streamSize];

    content.read(byteArray, 0, streamSize);
    for (int i = 0; i < streamSize;) {
        charArray[i] = (char) (byteArray[i++] & 0xff);
    }

    return new String(charArray);
}

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From source file:org.archive.io.HeaderedArchiveRecord.java

/**
 * Read header if present. Technique borrowed from HttpClient HttpParse
 * class. Using http parser code for now. Later move to more generic header
 * parsing code if there proves a need.//w  w w .  j av  a2  s  . com
 * 
 * @return ByteArrayInputStream with the http header in it or null if no
 *         http header.
 * @throws IOException
 */
private InputStream readContentHeaders() throws IOException {
    // If judged a record that doesn't have an http header, return
    // immediately.
    if (!hasContentHeaders()) {
        return null;
    }
    byte[] statusBytes = LaxHttpParser.readRawLine(getIn());
    int eolCharCount = getEolCharsCount(statusBytes);
    if (eolCharCount <= 0) {
        throw new IOException(
                "Failed to read raw lie where one " + " was expected: " + new String(statusBytes));
    }
    String statusLine = EncodingUtil.getString(statusBytes, 0, statusBytes.length - eolCharCount,
            ARCConstants.DEFAULT_ENCODING);
    if (statusLine == null) {
        throw new NullPointerException("Expected status line is null");
    }
    // TODO: Tighten up this test.
    boolean isHttpResponse = StatusLine.startsWithHTTP(statusLine);
    boolean isHttpRequest = false;
    if (!isHttpResponse) {
        isHttpRequest = statusLine.toUpperCase().startsWith("GET")
                || !statusLine.toUpperCase().startsWith("POST");
    }
    if (!isHttpResponse && !isHttpRequest) {
        throw new UnexpectedStartLineIOException("Failed parse of " + "status line: " + statusLine);
    }
    this.statusCode = isHttpResponse ? (new StatusLine(statusLine)).getStatusCode() : -1;

    // Save off all bytes read.  Keep them as bytes rather than
    // convert to strings so we don't have to worry about encodings
    // though this should never be a problem doing http headers since
    // its all supposed to be ascii.
    ByteArrayOutputStream baos = new ByteArrayOutputStream(statusBytes.length + 4 * 1024);
    baos.write(statusBytes);

    // Now read rest of the header lines looking for the separation
    // between header and body.
    for (byte[] lineBytes = null; true;) {
        lineBytes = LaxHttpParser.readRawLine(getIn());
        eolCharCount = getEolCharsCount(lineBytes);
        if (eolCharCount <= 0) {
            throw new IOException(
                    "Failed reading headers: " + ((lineBytes != null) ? new String(lineBytes) : null));
        }
        // Save the bytes read.
        baos.write(lineBytes);
        if ((lineBytes.length - eolCharCount) <= 0) {
            // We've finished reading the http header.
            break;
        }
    }

    byte[] headerBytes = baos.toByteArray();
    // Save off where content body, post content headers, starts.
    this.contentHeadersLength = headerBytes.length;
    ByteArrayInputStream bais = new ByteArrayInputStream(headerBytes);
    if (!bais.markSupported()) {
        throw new IOException("ByteArrayInputStream does not support mark");
    }
    bais.mark(headerBytes.length);
    // Read the status line.  Don't let it into the parseHeaders function.
    // It doesn't know what to do with it.
    bais.read(statusBytes, 0, statusBytes.length);
    this.contentHeaders = LaxHttpParser.parseHeaders(bais, ARCConstants.DEFAULT_ENCODING);
    bais.reset();
    return bais;
}

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From source file:com.remobile.file.LocalFilesystem.java

@Override
public long writeToFileAtURL(LocalFilesystemURL inputURL, String data, int offset, boolean isBinary)
        throws IOException, NoModificationAllowedException {

    boolean append = false;
    if (offset > 0) {
        this.truncateFileAtURL(inputURL, offset);
        append = true;//  ww w. j a va2s  . c  o m
    }

    byte[] rawData;
    if (isBinary) {
        rawData = Base64.decode(data, Base64.DEFAULT);
    } else {
        rawData = data.getBytes();
    }
    ByteArrayInputStream in = new ByteArrayInputStream(rawData);
    try {
        byte buff[] = new byte[rawData.length];
        String absolutePath = filesystemPathForURL(inputURL);
        FileOutputStream out = new FileOutputStream(absolutePath, append);
        try {
            in.read(buff, 0, buff.length);
            out.write(buff, 0, rawData.length);
            out.flush();
        } finally {
            // Always close the output
            out.close();
        }
        if (isPublicDirectory(absolutePath)) {
            broadcastNewFile(Uri.fromFile(new File(absolutePath)));
        }
    } catch (NullPointerException e) {
        // This is a bug in the Android implementation of the Java Stack
        NoModificationAllowedException realException = new NoModificationAllowedException(inputURL.toString());
        throw realException;
    }

    return rawData.length;
}

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