Example usage for com.google.common.hash Hashing crc32

Introduction

In this page you can find the example usage for com.google.common.hash Hashing crc32.

Prototype

public static HashFunction crc32() 

Source Link

Document

Returns a hash function implementing the CRC-32 checksum algorithm (32 hash bits) by delegating to the CRC32 Checksum .

Usage

From source file:com.lithium.flow.util.HashFunctions.java

@Nonnull
public static HashFunction of(@Nonnull String name) {
    checkNotNull(name);//  w ww . j a v  a 2 s.  co m
    switch (name) {
    case "adler32":
        return Hashing.adler32();
    case "crc32":
        return Hashing.crc32();
    case "md5":
        return Hashing.md5();
    case "sha1":
        return Hashing.sha1();
    case "sha256":
        return Hashing.sha256();
    case "sha512":
        return Hashing.sha512();
    case "sipHash24":
        return Hashing.sipHash24();
    case "murmur3_32":
        return Hashing.murmur3_32();
    case "murmur3_128":
        return Hashing.murmur3_128();
    default:
        throw new RuntimeException("unknown hash: " + name);
    }
}

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From source file:org.thingsboard.server.utils.MiscUtils.java

public static HashFunction forName(String name) {
    switch (name) {
    case "murmur3_32":
        return Hashing.murmur3_32();
    case "murmur3_128":
        return Hashing.murmur3_128();
    case "crc32":
        return Hashing.crc32();
    case "md5":
        return Hashing.md5();
    default:/* w  w w .j  a  va2s . co  m*/
        throw new IllegalArgumentException("Can't find hash function with name " + name);
    }
}

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From source file:org.graylog.plugins.pipelineprocessor.functions.hashing.CRC32.java

@Override
protected String getDigest(String value) {
    return Hashing.crc32().hashString(value, StandardCharsets.UTF_8).toString();
}

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From source file:playacem.allrondism.core.util.ComparableMergableImage.java

public ComparableMergableImage(File path, String background, String overlay) {

    this.path = path;
    this.bg = background;
    this.overlay = overlay;

    img = new File(path, bg + ".png");
    overlayFile = new File(path, this.overlay + ".png");

    try {/*  w  ww.j a  va2 s  .  c o m*/
        this.setHashBG(Files.hash(img, Hashing.crc32()));
    } catch (IOException e) {
        LogHelper.alert(getErrorText("hashing the background file"));
        LogHelper.alert(img.getAbsolutePath());
    }

    try {
        this.setHashOverlay(Files.hash(overlayFile, Hashing.crc32()));
    } catch (IOException e) {
        LogHelper.alert(getErrorText("hashing the overlay file"));
        LogHelper.alert(overlayFile.getAbsolutePath());

    }

}

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From source file:ome.util.checksum.CRC32ChecksumProviderImpl.java

protected CRC32ChecksumProviderImpl() {
    super(Hashing.crc32());
}

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From source file:com.intellij.ide.plugins.RepositoryHelper.java

public static List<IdeaPluginDescriptor> loadPluginsFromRepository(@Nullable ProgressIndicator indicator)
        throws Exception {
    ApplicationInfoEx appInfo = ApplicationInfoImpl.getShadowInstance();

    String url = appInfo.getPluginsListUrl() + "?build=" + appInfo.getBuild().asString();

    if (indicator != null) {
        indicator.setText2(//w  ww  .  jav  a2 s  .c  o m
                IdeBundle.message("progress.connecting.to.plugin.manager", appInfo.getPluginManagerUrl()));
    }

    File pluginListFile = new File(PathManager.getPluginsPath(), PLUGIN_LIST_FILE);
    if (pluginListFile.length() > 0) {
        try {
            url = url + "&crc32=" + Files.hash(pluginListFile, Hashing.crc32()).toString();
        } catch (NoSuchMethodError e) {
            String guavaPath = PathUtil.getJarPathForClass(Hashing.class);
            throw new RuntimeException(guavaPath, e);
        }
    }

    HttpURLConnection connection = HttpConfigurable.getInstance().openHttpConnection(url);
    connection.setRequestProperty("Accept-Encoding", "gzip");

    if (indicator != null) {
        indicator.setText2(IdeBundle.message("progress.waiting.for.reply.from.plugin.manager",
                appInfo.getPluginManagerUrl()));
    }

    connection.connect();
    try {
        if (indicator != null) {
            indicator.checkCanceled();
        }

        if (connection.getResponseCode() == HttpURLConnection.HTTP_NOT_MODIFIED) {
            return loadPluginList(pluginListFile);
        }

        String encoding = connection.getContentEncoding();
        InputStream is = connection.getInputStream();
        try {
            if ("gzip".equalsIgnoreCase(encoding)) {
                is = new GZIPInputStream(is);
            }

            if (indicator != null) {
                indicator.setText2(IdeBundle.message("progress.downloading.list.of.plugins"));
            }

            return readPluginsStream(is, indicator, PLUGIN_LIST_FILE);
        } finally {
            is.close();
        }
    } finally {
        connection.disconnect();
    }
}

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From source file:ph.samson.maven.enforcer.rule.checksum.FileChecksum.java

@Override
public void execute(EnforcerRuleHelper erh) throws EnforcerRuleException {
    if (file == null || !file.canRead()) {
        throw new EnforcerRuleException("Missing file: " + file);
    }//ww w  .java  2  s. co  m

    HashFunction hashFn;
    switch (type) {
    case "crc32":
        hashFn = Hashing.crc32();
        break;
    case "crc32c":
        hashFn = Hashing.crc32c();
        break;
    case "md5":
        hashFn = Hashing.md5();
        break;
    case "sha1":
        hashFn = Hashing.sha1();
        break;
    case "sha256":
        hashFn = Hashing.sha256();
        break;
    case "sha512":
        hashFn = Hashing.sha512();
        break;
    default:
        throw new EnforcerRuleException("Unsupported hash type: " + type);
    }

    String hash;
    try {
        hash = hashFn.hashBytes(Files.readAllBytes(file.toPath())).toString();
    } catch (IOException ex) {
        throw new EnforcerRuleException("Failed reading " + file, ex);
    }

    if (!hash.equalsIgnoreCase(checksum)) {
        throw new EnforcerRuleException(
                type + " hash of " + file + " was " + hash + " but expected " + checksum);
    }
}

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From source file:com.ziduye.utils.security.Digests.java

public static int crc32(byte[] input) {
    return Hashing.crc32().hashBytes(input).asInt();
}

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From source file:com.ziduye.utils.security.Digests.java

public static int crc32(String input) {
    return Hashing.crc32().hashString(input, UTF8).asInt();
}

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From source file:org.etourdot.vertx.mods.XmlXPathHandler.java

public void handle(Message message) {
    final JsonObject messageBody = (JsonObject) message.body();
    final String xpath = messageBody.getString(XPATH);
    final String xml = messageBody.getString(XML);
    final String url_xml = messageBody.getString(URL_XML);
    //final JsonArray params = messageBody.getArray(PARAMS);

    if (Strings.isNullOrEmpty(xml) && Strings.isNullOrEmpty(url_xml)) {
        sendError(message, "xml ou url_xml must be specified");
        return;/*from  w ww. ja  va  2  s .c  o m*/
    }
    if (Strings.isNullOrEmpty(xpath)) {
        sendError(message, "xpath must be specified");
        return;
    }

    try {
        final Source xml_source;
        if (!Strings.isNullOrEmpty(xml)) {
            if (!Strings.isNullOrEmpty(url_xml)) {
                sendError(message, "xml either url_xml must be specified");
                return;
            }
            xml_source = new StreamSource(new ByteArrayInputStream(xml.getBytes("UTF-8")));
        } else {
            xml_source = new SAXSource(new InputSource(url_xml));
        }
        final HashCode key = Hashing.crc32().hashString(xpath, Charsets.UTF_8);
        final XPathSelector xPathSelector = cacheXPathSelector.get(key, new Callable<XPathSelector>() {
            @Override
            public XPathSelector call() throws Exception {
                final XPathCompiler xPathCompiler = processor.newXPathCompiler();
                final XPathExecutable xPathExecutable = xPathCompiler.compile(xpath);
                return xPathExecutable.load();
            }
        });
        final XdmNode source = processor.newDocumentBuilder().build(xml_source);
        xPathSelector.setContextItem(source);
        final XdmValue xdmValue = xPathSelector.evaluate();
        final StringWriter writer = new StringWriter();
        final Serializer out = processor.newSerializer(writer);
        out.serializeXdmValue(xdmValue);
        JsonObject outputObject = new JsonObject();
        outputObject.putString("output", writer.toString());
        sendOK(message, outputObject);
    } catch (SaxonApiException | UnsupportedEncodingException | ExecutionException e) {
        sendError(message, e.getMessage());
    }
}

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