Example usage for com.google.common.base Preconditions checkArgument

Introduction

In this page you can find the example usage for com.google.common.base Preconditions checkArgument.

Prototype

public static void checkArgument(boolean expression) 

Source Link

Document

Ensures the truth of an expression involving one or more parameters to the calling method.

Usage

From source file:org.apache.kylin.engine.streaming.cli.MonitorCLI.java

public static void main(String[] args) {
    Preconditions.checkArgument(args[0].equals("monitor"));

    int i = 1;//from   w w w  . ja  v  a2  s.  c  om
    List<String> receivers = null;
    String host = null;
    String tableName = null;
    String authorization = null;
    String cubeName = null;
    String projectName = "default";
    while (i < args.length) {
        String argName = args[i];
        switch (argName) {
        case "-receivers":
            receivers = Lists.newArrayList(StringUtils.split(args[++i], ";"));
            break;
        case "-host":
            host = args[++i];
            break;
        case "-tableName":
            tableName = args[++i];
            break;
        case "-authorization":
            authorization = args[++i];
            break;
        case "-cubeName":
            cubeName = args[++i];
            break;
        case "-projectName":
            projectName = args[++i];
            break;
        default:
            throw new RuntimeException("invalid argName:" + argName);
        }
        i++;
    }
    Preconditions.checkArgument(receivers != null && receivers.size() > 0);
    final StreamingMonitor streamingMonitor = new StreamingMonitor();
    if (tableName != null) {
        logger.info(String.format("check query tableName:%s host:%s receivers:%s", tableName, host,
                StringUtils.join(receivers, ";")));
        Preconditions.checkNotNull(host);
        Preconditions.checkNotNull(authorization);
        Preconditions.checkNotNull(tableName);
        streamingMonitor.checkCountAll(receivers, host, authorization, projectName, tableName);
    }
    if (cubeName != null) {
        logger.info(String.format("check cube cubeName:%s receivers:%s", cubeName,
                StringUtils.join(receivers, ";")));
        streamingMonitor.checkCube(receivers, cubeName, host);
    }
    System.exit(0);
}

---

From source file:org.guldenj.tools.BlockImporter.java

public static void main(String[] args) throws BlockStoreException, VerificationException, PrunedException {
    System.out.println("USAGE: BlockImporter (prod|test) (H2|Disk|MemFull|Mem|SPV) [blockStore]");
    System.out.println("       blockStore is required unless type is Mem or MemFull");
    System.out.println("       eg BlockImporter prod H2 /home/user/guldenj.h2store");
    System.out.println("       Does full verification if the store supports it");
    Preconditions.checkArgument(args.length == 2 || args.length == 3);

    NetworkParameters params;//from w ww .  ja  va 2s  . c  o  m
    if (args[0].equals("test"))
        params = TestNet3Params.get();
    else
        params = MainNetParams.get();

    BlockStore store;
    if (args[1].equals("H2")) {
        Preconditions.checkArgument(args.length == 3);
        store = new H2FullPrunedBlockStore(params, args[2], 100);
    } else if (args[1].equals("MemFull")) {
        Preconditions.checkArgument(args.length == 2);
        store = new MemoryFullPrunedBlockStore(params, 100);
    } else if (args[1].equals("Mem")) {
        Preconditions.checkArgument(args.length == 2);
        store = new MemoryBlockStore(params);
    } else if (args[1].equals("SPV")) {
        Preconditions.checkArgument(args.length == 3);
        store = new SPVBlockStore(params, new File(args[2]));
    } else {
        System.err.println("Unknown store " + args[1]);
        return;
    }

    AbstractBlockChain chain = null;
    if (store instanceof FullPrunedBlockStore)
        chain = new FullPrunedBlockChain(params, (FullPrunedBlockStore) store);
    else
        chain = new BlockChain(params, store);

    BlockFileLoader loader = new BlockFileLoader(params, BlockFileLoader.getReferenceClientBlockFileList());

    for (Block block : loader)
        chain.add(block);
}

---

From source file:org.bitcoinj_extra.tools.BlockImporter.java

public static void main(String[] args) throws BlockStoreException, VerificationException, PrunedException {
    System.out.println("USAGE: BlockImporter (prod|test) (H2|Disk|MemFull|Mem|SPV) [blockStore]");
    System.out.println("       blockStore is required unless type is Mem or MemFull");
    System.out.println("       eg BlockImporter prod H2 /home/user/bitcoinj_extra.h2store");
    System.out.println("       Does full verification if the store supports it");
    Preconditions.checkArgument(args.length == 2 || args.length == 3);

    NetworkParameters params;//from   w w  w. jav  a 2s. co m
    if (args[0].equals("test"))
        params = TestNet3Params.get();
    else
        params = MainNetParams.get();

    BlockStore store;
    if (args[1].equals("H2")) {
        Preconditions.checkArgument(args.length == 3);
        store = new H2FullPrunedBlockStore(params, args[2], 100);
    } else if (args[1].equals("MemFull")) {
        Preconditions.checkArgument(args.length == 2);
        store = new MemoryFullPrunedBlockStore(params, 100);
    } else if (args[1].equals("Mem")) {
        Preconditions.checkArgument(args.length == 2);
        store = new MemoryBlockStore(params);
    } else if (args[1].equals("SPV")) {
        Preconditions.checkArgument(args.length == 3);
        store = new SPVBlockStore(params, new File(args[2]));
    } else {
        System.err.println("Unknown store " + args[1]);
        return;
    }

    AbstractBlockChain chain = null;
    if (store instanceof FullPrunedBlockStore)
        chain = new FullPrunedBlockChain(params, (FullPrunedBlockStore) store);
    else
        chain = new BlockChain(params, store);

    BlockFileLoader loader = new BlockFileLoader(params, BlockFileLoader.getReferenceClientBlockFileList());

    for (Block block : loader)
        chain.add(block);
}

---

From source file:org.bitcoinj.tools.BlockImporter.java

public static void main(String[] args) throws BlockStoreException, VerificationException, PrunedException {
    System.out.println("USAGE: BlockImporter (prod|test) (H2|Disk|MemFull|Mem|SPV) [blockStore]");
    System.out.println("       blockStore is required unless type is Mem or MemFull");
    System.out.println("       eg BlockImporter prod H2 /home/user/bitcoinj.h2store");
    System.out.println("       Does full verification if the store supports it");
    Preconditions.checkArgument(args.length == 2 || args.length == 3);

    NetworkParameters params;/*from   w w  w. j a va 2  s  .  c o  m*/
    if (args[0].equals("test"))
        params = TestNet3Params.get();
    else
        params = MainNetParams.get();

    BlockStore store;
    if (args[1].equals("H2")) {
        Preconditions.checkArgument(args.length == 3);
        store = new H2FullPrunedBlockStore(params, args[2], 100);
    } else if (args[1].equals("MemFull")) {
        Preconditions.checkArgument(args.length == 2);
        store = new MemoryFullPrunedBlockStore(params, 100);
    } else if (args[1].equals("Mem")) {
        Preconditions.checkArgument(args.length == 2);
        store = new MemoryBlockStore(params);
    } else if (args[1].equals("SPV")) {
        Preconditions.checkArgument(args.length == 3);
        store = new SPVBlockStore(params, new File(args[2]));
    } else {
        System.err.println("Unknown store " + args[1]);
        return;
    }

    AbstractBlockChain chain = null;
    if (store instanceof FullPrunedBlockStore)
        chain = new FullPrunedBlockChain(params, (FullPrunedBlockStore) store);
    else
        chain = new BlockChain(params, store);

    BlockFileLoader loader = new BlockFileLoader(params, BlockFileLoader.getReferenceClientBlockFileList());

    for (Block block : loader)
        chain.add(block);
}

---

From source file:org.litecoinj.tools.BlockImporter.java

public static void main(String[] args) throws BlockStoreException, VerificationException, PrunedException {
    System.out.println("USAGE: BlockImporter (prod|test) (H2|Disk|MemFull|Mem|SPV) [blockStore]");
    System.out.println("       blockStore is required unless type is Mem or MemFull");
    System.out.println("       eg BlockImporter prod H2 /home/user/litecoinj.h2store");
    System.out.println("       Does full verification if the store supports it");
    Preconditions.checkArgument(args.length == 2 || args.length == 3);

    NetworkParameters params;//ww  w.  j  av a  2  s.  c  om
    if (args[0].equals("test"))
        params = TestNet3Params.get();
    else
        params = MainNetParams.get();

    BlockStore store;
    if (args[1].equals("H2")) {
        Preconditions.checkArgument(args.length == 3);
        store = new H2FullPrunedBlockStore(params, args[2], 100);
    } else if (args[1].equals("MemFull")) {
        Preconditions.checkArgument(args.length == 2);
        store = new MemoryFullPrunedBlockStore(params, 100);
    } else if (args[1].equals("Mem")) {
        Preconditions.checkArgument(args.length == 2);
        store = new MemoryBlockStore(params);
    } else if (args[1].equals("SPV")) {
        Preconditions.checkArgument(args.length == 3);
        store = new SPVBlockStore(params, new File(args[2]));
    } else {
        System.err.println("Unknown store " + args[1]);
        return;
    }

    AbstractBlockChain chain = null;
    if (store instanceof FullPrunedBlockStore)
        chain = new FullPrunedBlockChain(params, (FullPrunedBlockStore) store);
    else
        chain = new BlockChain(params, store);

    BlockFileLoader loader = new BlockFileLoader(params, BlockFileLoader.getReferenceClientBlockFileList());

    for (Block block : loader)
        chain.add(block);
}

---

From source file:org.apache.kylin.engine.streaming.cli.StreamingCLI.java

public static void main(String[] args) {
    try {/*from   w  w w .  jav  a2s. c  o m*/
        Preconditions.checkArgument(args[0].equals("streaming"));
        Preconditions.checkArgument(args[1].equals("start"));

        int i = 2;
        BootstrapConfig bootstrapConfig = new BootstrapConfig();
        while (i < args.length) {
            String argName = args[i];
            switch (argName) {
            case "-start":
                bootstrapConfig.setStart(Long.parseLong(args[++i]));
                break;
            case "-end":
                bootstrapConfig.setEnd(Long.parseLong(args[++i]));
                break;
            case "-cube":
                bootstrapConfig.setCubeName(args[++i]);
                break;
            case "-fillGap":
                bootstrapConfig.setFillGap(Boolean.parseBoolean(args[++i]));
                break;
            case "-maxFillGapRange":
                bootstrapConfig.setMaxFillGapRange(Long.parseLong(args[++i]));
                break;
            default:
                logger.warn("ignore this arg:" + argName);
            }
            i++;
        }
        if (bootstrapConfig.isFillGap()) {
            final List<Pair<Long, Long>> gaps = StreamingMonitor.findGaps(bootstrapConfig.getCubeName());
            logger.info("all gaps:" + StringUtils.join(gaps, ","));
            for (Pair<Long, Long> gap : gaps) {
                List<Pair<Long, Long>> splitGaps = splitGap(gap, bootstrapConfig.getMaxFillGapRange());
                for (Pair<Long, Long> splitGap : splitGaps) {
                    logger.info("start filling the gap from " + splitGap.getFirst() + " to "
                            + splitGap.getSecond());
                    startOneOffCubeStreaming(bootstrapConfig.getCubeName(), splitGap.getFirst(),
                            splitGap.getSecond());
                    logger.info("finish filling the gap from " + splitGap.getFirst() + " to "
                            + splitGap.getSecond());
                }
            }
        } else {
            startOneOffCubeStreaming(bootstrapConfig.getCubeName(), bootstrapConfig.getStart(),
                    bootstrapConfig.getEnd());
            logger.info("streaming process finished, exit with 0");
            System.exit(0);
        }
    } catch (Exception e) {
        printArgsError(args);
        logger.error("error start streaming", e);
        System.exit(-1);
    }
}

---

From source file:com.doctor.base64.CommonsCodecBase64.java

public static void main(String[] args) {
    String plainText = "Base64??"
            + "??ASCII???"
            + "????Base64";

    // ??/*from w  w  w  .  j  av  a2s  .co m*/
    String base64String = Base64.encodeBase64String(plainText.getBytes(StandardCharsets.UTF_8));
    System.out.println(base64String);

    String plainTxt = new String(Base64.decodeBase64(base64String), StandardCharsets.UTF_8);
    Preconditions.checkArgument(plainTxt.equals(plainText));

    // ??
    base64String = new String(Base64.encodeBase64Chunked(plainText.getBytes(StandardCharsets.UTF_8)),
            StandardCharsets.UTF_8);
    plainTxt = new String(Base64.decodeBase64(base64String), StandardCharsets.UTF_8);
    Preconditions.checkArgument(plainTxt.equals(plainText));

}

---

From source file:com.cloudera.nav.sdk.examples.extraction.IncrementalExtraction.java

public static void main(String[] args) throws IOException {
    // handle arguments
    Preconditions.checkArgument(args.length >= 2);
    String configFilePath = args[0];
    String markerWritePath = args[1];
    String startMarker = args.length > 2 ? readFileArg(args[2]) : null;
    String endMarker = args.length > 3 ? readFileArg(args[3]) : null;

    NavApiCient client = NavigatorPlugin.fromConfigFile(configFilePath).getClient();

    // Extract metadata
    MetadataExtractor extractor = new MetadataExtractor(client, null);
    MetadataResultSet rs = extractor.extractMetadata(startMarker, endMarker);

    // Save the marker to be used next time
    String nextMarker = rs.getMarker();
    try (PrintWriter markerWriter = new PrintWriter(markerWritePath, "UTF-8")) {
        markerWriter.println(nextMarker);
    }/*from  ww w .j  a  v a2  s.  c o  m*/

    // Iterate through entities and relations and process them

    Iterator<Map<String, Object>> entitiesIt = rs.getEntities().iterator();
    Integer totalEntities = 0;
    while (entitiesIt.hasNext()) {
        processNextResult(entitiesIt.next());
        totalEntities++;
    }

    Iterator<Map<String, Object>> relationsIt = rs.getRelations().iterator();
    Integer totalRelations = 0;
    while (relationsIt.hasNext()) {
        processNextResult(relationsIt.next());
        totalRelations++;
    }

    System.out.println("Total number of entities: " + totalEntities);
    System.out.println("Total number of relations: " + totalRelations);
    System.out.println("Next marker: " + nextMarker);
}

---

From source file:com.cloudera.nav.sdk.examples.extraction.FilteredExtraction.java

public static void main(String[] args) throws IOException {
    // handle arguments
    Preconditions.checkArgument(args.length >= 2);
    String configFilePath = args[0];
    String markerPath = args[1];//from   w  w w .  ja  v  a2 s.  co m
    String marker = args.length > 2 ? IncrementalExtraction.readFileArg(args[2]) : null;

    NavApiCient client = NavigatorPlugin.fromConfigFile(configFilePath).getClient();

    MetadataExtractor extractor = new MetadataExtractor(client, null);

    // Run filtered examples
    getHDFSEntities(client, extractor, marker);
    getHive(extractor, marker, "city_id");
    getHiveOperations(extractor, marker);
    String nextMarker = getMRandYarn(extractor, marker);

    // Save the last marker
    try (PrintWriter writer = new PrintWriter(markerPath, "UTF-8")) {
        writer.println(nextMarker);
    }
}

---

From source file:com.cloudera.navigator.navigator_partner.extraction.HiveMetadataExtraction.java

public static void main(String[] args) throws IOException {
    // handle arguments
    Preconditions.checkArgument(args.length >= 2);
    String configFilePath = args[0];
    String markerPath = args[1];/*from w ww .j  a v a  2 s. com*/
    String marker = args.length > 2 ? HiveMetadataExtraction.readFileArg(args[2]) : null;

    NavigatorPlugin navPlugin = NavigatorPlugin.fromConfigFile(configFilePath);
    NavApiCient client = navPlugin.getClient();

    MetadataExtractor extractor = new MetadataExtractor(client, null);
    addCustomTags(navPlugin, extractor, marker);

    // Run filtered examples
    getHive(extractor, marker, "salary");

}

---

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