Example usage for java.security DigestInputStream read

Introduction

In this page you can find the example usage for java.security DigestInputStream read.

Prototype

public int read() throws IOException 

Source Link

Document

Reads a byte, and updates the message digest (if the digest function is on).

Usage

From source file:com.clustercontrol.repository.factory.AgentLibDownloader.java

/**
 * MD5??//ww  w  .jav a2s  .  c om
 * @param filepath
 * @return
 * @throws HinemosUnknown 
 */
private static String getMD5(String filepath) throws HinemosUnknown {
    MessageDigest md = null;
    DigestInputStream inStream = null;
    byte[] digest = null;
    try {
        md = MessageDigest.getInstance("MD5");
        inStream = new DigestInputStream(new BufferedInputStream(new FileInputStream(filepath)), md);
        while (inStream.read() != -1) {
        }
        digest = md.digest();
    } catch (Exception e) {
        m_log.warn("getMD5() : filepath=" + filepath + ", " + e.getClass(), e);
    } finally {
        if (inStream != null) {
            try {
                inStream.close();
            } catch (Exception e) {
                m_log.warn("getMD5() : close " + e.getClass(), e);
            }
        }
        if (digest == null)
            throw new HinemosUnknown("MD5 digest is null");
    }
    return hashByte2MD5(digest);
}

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From source file:at.alladin.rmbt.client.v2.task.HttpProxyTask.java

/**
 * //from  w ww.j  a  v a 2  s  .  c om
 * @param file
 * @return
 * @throws NoSuchAlgorithmException
 * @throws IOException 
 */
public static String generateChecksum(File file) throws NoSuchAlgorithmException, IOException {
    MessageDigest md = MessageDigest.getInstance("MD5");
    DigestInputStream dis = new DigestInputStream(new FileInputStream(file), md);
    int ch;
    while ((ch = dis.read()) != -1) {
        //empty block
    }
    dis.close();
    return generateChecksumFromDigest(md.digest());
}

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From source file:org.eclipse.kura.deployment.rp.sh.impl.ShellScriptResourceProcessorImpl.java

private static byte[] computeDigest(InputStream is) throws NoSuchAlgorithmException, IOException {
    MessageDigest md = MessageDigest.getInstance("MD5");
    DigestInputStream dis = new DigestInputStream(is, md);
    while (dis.read() != -1) {
        ;//from w w w.j  av  a2  s. c o m
    }
    byte[] digest = md.digest();
    return digest;
}

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From source file:de.uzk.hki.da.pkg.MetsConsistencyChecker.java

/**
 * Calculate hash.//from   w ww. ja  v a2 s.  c om
 *
 * @param algorithm the algorithm
 * @param file the file
 * @return the string
 * @throws Exception the exception
 */
private static String calculateHash(MessageDigest algorithm, File file) throws Exception {

    FileInputStream fis = new FileInputStream(file);
    BufferedInputStream bis = new BufferedInputStream(fis);
    DigestInputStream dis = new DigestInputStream(bis, algorithm);

    // read the file and update the hash calculation
    while (dis.read() != -1)
        ;

    // get the hash value as byte array
    byte[] hash = algorithm.digest();

    fis.close();
    bis.close();
    dis.close();

    return byteArray2Hex(hash);

}

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From source file:fi.mikuz.boarder.util.FileProcessor.java

public static String calculateHash(File file) throws Exception {

    MessageDigest algorithm = MessageDigest.getInstance("SHA1");
    FileInputStream fis = new FileInputStream(file);
    BufferedInputStream bis = new BufferedInputStream(fis);
    DigestInputStream dis = new DigestInputStream(bis, algorithm);

    // read the file and update the hash calculation
    while (dis.read() != -1)
        ;//from www .  j av a 2  s .  c  o m

    // get the hash value as byte array
    byte[] hash = algorithm.digest();

    return byteArray2Hex(hash);
}

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From source file:com.github.nlloyd.hornofmongo.MongoScope.java

public static Object md5sumFile(Context cx, Scriptable thisObj, Object[] args, Function funObj) {
    assertSingleArgument(args);//from  w  ww  . j  a  v a 2 s  .  co m
    MessageDigest md = null;
    try {
        md = MessageDigest.getInstance("MD5");
    } catch (NoSuchAlgorithmException e) {
        Context.throwAsScriptRuntimeEx(e);
    }
    File inFile;
    try {
        inFile = resolveFilePath((MongoScope) thisObj, Context.toString(args[0])).getCanonicalFile();
    } catch (IOException e) {
        Context.throwAsScriptRuntimeEx(e);
        return null;
    }
    InputStream in = null;
    DigestInputStream dis = null;
    try {
        in = new BufferedInputStream(new FileInputStream(inFile));
        dis = new DigestInputStream(in, md);
        while (dis.available() > 0)
            dis.read();
        byte[] digest = md.digest();
        String hexStr = Hex.encodeHexString(digest);
        return hexStr;
    } catch (FileNotFoundException e) {
        Context.throwAsScriptRuntimeEx(e);
    } catch (IOException e) {
        Context.throwAsScriptRuntimeEx(e);
    } finally {
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
            }
        }
        if (dis != null) {
            try {
                dis.close();
            } catch (IOException e) {
            }
        }
    }
    return Undefined.instance;
}

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From source file:org.openintents.safe.CryptoHelper.java

/**
 * @param message/*  ww  w.  ja v a  2 s. c  o  m*/
 * @return MD5 digest of message in a byte array
 * @throws NoSuchAlgorithmException
 * @throws IOException
 */
public static byte[] md5String(String message) {

    byte[] input = message.getBytes();

    MessageDigest hash;
    ByteArrayInputStream bIn = null;
    DigestInputStream dIn = null;

    try {
        hash = MessageDigest.getInstance("MD5");

        bIn = new ByteArrayInputStream(input);
        dIn = new DigestInputStream(bIn, hash);

        for (int i = 0; i < input.length; i++) {
            dIn.read();
        }

    } catch (NoSuchAlgorithmException e) {
        Log.e(TAG, "md5String(): " + e.toString());
    } catch (IOException e) {
        Log.e(TAG, "md5String(): " + e.toString());
    }

    return dIn.getMessageDigest().digest();
}

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From source file:org.duracloud.chunk.ChunkableContentTest.java

private void read(DigestInputStream istream) throws IOException {
    while (istream.read() != -1) {
        // walk through the stream
    }/* w  w w.j  a v  a 2  s.c om*/
}

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From source file:org.panbox.linux.desktop.identitymgmt.TestDownloadHashCompare.java

/**
 * Creates a Hash value for a given file
 * @param file// ww w .j a v a 2 s  .c  o m
 * @return
 */
private byte[] createFileHash(File file) {
    MessageDigest md = null;
    try (InputStream is = Files.newInputStream(Paths.get(file.getAbsolutePath()))) {

        md = MessageDigest.getInstance("SHA-256");
        DigestInputStream dis = new DigestInputStream(is, md);

        /* Read stream to EOF as normal... */

        while (dis.available() > 0) {
            dis.read();
        }

    } catch (NoSuchAlgorithmException e) {
        fail();
    } catch (IOException e1) {
        fail();
    }
    byte[] digest = md.digest();

    //String h = Hex.encodeHexString( digest );

    return digest;
}

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From source file:org.seadva.dataone.DataOneUtil.java

@GET
@Path("addObject")
@Produces(MediaType.APPLICATION_JSON)/*from   w w w .j  av  a  2 s.co  m*/
public String addObject(@QueryParam("filePath") String filePath, @QueryParam("id") String identifier,
        @QueryParam("schema") String metaFormat) throws IndexServiceException {

    ResearchObject researchObject = new ResearchObject();

    String filename = ((String) filePath).split("/")[((String) filePath).split("/").length - 1].replace(".xml",
            "");
    if (metaFormat == null)
        metaFormat = "http://www.fgdc.gov/schemas/metadata/fgdc-std-001-1998.xsd";
    if (identifier == null)
        identifier = filename;

    SeadFile metadataFile = new SeadFile();
    metadataFile.setId(filename);
    metadataFile.setName(filename);
    metadataFile.setSource("file://" + filePath);

    try {
        DigestInputStream digestStream = new DigestInputStream(new FileInputStream(filePath),
                MessageDigest.getInstance("SHA-1"));
        if (digestStream.read() != -1) {
            byte[] buf = new byte[1024];
            while (digestStream.read(buf) != -1)
                ;
        }
        byte[] digest = digestStream.getMessageDigest().digest();
        DcsFixity fixity = new DcsFixity();
        fixity.setAlgorithm("SHA-1");
        fixity.setValue(new String(Hex.encodeHex(digest)));
        metadataFile.addFixity(fixity);
    } catch (IOException e) {
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }

    DcsFormat metadataFormat = new DcsFormat();
    metadataFormat.setFormat(metaFormat);
    metadataFile.addFormat(metadataFormat);

    DcsResourceIdentifier dcsResourceIdentifier = new DcsResourceIdentifier();
    dcsResourceIdentifier.setIdValue(identifier);
    dcsResourceIdentifier.setTypeId("dataone");
    metadataFile.addAlternateId(dcsResourceIdentifier);

    File metaFile = new File(filePath);
    metadataFile.setSizeBytes(metaFile.length());

    SimpleDateFormat sdfDate = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
    Date now = new Date();
    String strDate = sdfDate.format(now);
    metadataFile.setMetadataUpdateDate(strDate);

    researchObject.addFile(metadataFile);

    BatchIndexer<ResearchObject> indexer = new ROBatchIndexer(SeadQueryService.solr, null);
    indexer.add(researchObject);
    indexer.close();

    return "{\n" + "  \"response\" : \"Successfully added object - " + identifier + "\"" + "}";
}

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