Examples with JsonFactory com.fasterxml.jackson.core.JsonFactory used on opensource projects

Example 61 with JsonFactory

use of com.fasterxml.jackson.core.JsonFactory in project hadoop by apache.

the class QueueManager method dumpConfiguration.

/***
   * Dumps the configuration of hierarchy of queues with 
   * the xml file path given. It is to be used directly ONLY FOR TESTING.
   * @param out the writer object to which dump is written to.
   * @param configFile the filename of xml file
   * @throws IOException
   */
static void dumpConfiguration(Writer out, String configFile, Configuration conf) throws IOException {
    if (conf != null && conf.get(DeprecatedQueueConfigurationParser.MAPRED_QUEUE_NAMES_KEY) != null) {
        return;
    }
    JsonFactory dumpFactory = new JsonFactory();
    JsonGenerator dumpGenerator = dumpFactory.createGenerator(out);
    QueueConfigurationParser parser;
    boolean aclsEnabled = false;
    if (conf != null) {
        aclsEnabled = conf.getBoolean(MRConfig.MR_ACLS_ENABLED, false);
    }
    if (configFile != null && !"".equals(configFile)) {
        parser = new QueueConfigurationParser(configFile, aclsEnabled);
    } else {
        parser = getQueueConfigurationParser(null, false, aclsEnabled);
    }
    dumpGenerator.writeStartObject();
    dumpGenerator.writeFieldName("queues");
    dumpGenerator.writeStartArray();
    dumpConfiguration(dumpGenerator, parser.getRoot().getChildren());
    dumpGenerator.writeEndArray();
    dumpGenerator.writeEndObject();
    dumpGenerator.flush();
}

Example 62 with JsonFactory

use of com.fasterxml.jackson.core.JsonFactory in project hadoop by apache.

the class SLSUtils method parseNodesFromNodeFile.

/**
   * parse the input node file, return each host name
   */
public static Set<String> parseNodesFromNodeFile(String nodeFile) throws IOException {
    Set<String> nodeSet = new HashSet<String>();
    JsonFactory jsonF = new JsonFactory();
    ObjectMapper mapper = new ObjectMapper();
    Reader input = new InputStreamReader(new FileInputStream(nodeFile), "UTF-8");
    try {
        Iterator<Map> i = mapper.readValues(jsonF.createParser(input), Map.class);
        while (i.hasNext()) {
            Map jsonE = i.next();
            String rack = "/" + jsonE.get("rack");
            List tasks = (List) jsonE.get("nodes");
            for (Object o : tasks) {
                Map jsonNode = (Map) o;
                nodeSet.add(rack + "/" + jsonNode.get("node"));
            }
        }
    } finally {
        input.close();
    }
    return nodeSet;
}

Example 63 with JsonFactory

use of com.fasterxml.jackson.core.JsonFactory in project hadoop by apache.

the class StatePool method write.

private void write(DataOutput out) throws IOException {
    // This is just a JSON experiment
    System.out.println("Dumping the StatePool's in JSON format.");
    ObjectMapper outMapper = new ObjectMapper();
    // define a module
    SimpleModule module = new SimpleModule("State Serializer", new Version(0, 1, 1, "FINAL", "", ""));
    // add the state serializer
    //module.addSerializer(State.class, new StateSerializer());
    // register the module with the object-mapper
    outMapper.registerModule(module);
    JsonFactory outFactory = outMapper.getFactory();
    JsonGenerator jGen = outFactory.createGenerator((DataOutputStream) out, JsonEncoding.UTF8);
    jGen.useDefaultPrettyPrinter();
    jGen.writeObject(this);
    jGen.close();
}

Example 64 with JsonFactory

use of com.fasterxml.jackson.core.JsonFactory in project hadoop by apache.

the class TestHistograms method main.

public static void main(String[] args) throws IOException {
    final Configuration conf = new Configuration();
    final FileSystem lfs = FileSystem.getLocal(conf);
    for (String arg : args) {
        Path filePath = new Path(arg).makeQualified(lfs);
        String fileName = filePath.getName();
        if (fileName.startsWith("input")) {
            LoggedDiscreteCDF newResult = histogramFileToCDF(filePath, lfs);
            String testName = fileName.substring("input".length());
            Path goldFilePath = new Path(filePath.getParent(), "gold" + testName);
            ObjectMapper mapper = new ObjectMapper();
            JsonFactory factory = mapper.getFactory();
            FSDataOutputStream ostream = lfs.create(goldFilePath, true);
            JsonGenerator gen = factory.createGenerator(ostream, JsonEncoding.UTF8);
            gen.useDefaultPrettyPrinter();
            gen.writeObject(newResult);
            gen.close();
        } else {
            System.err.println("Input file not started with \"input\". File " + fileName + " skipped.");
        }
    }
}

Example 65 with JsonFactory

use of com.fasterxml.jackson.core.JsonFactory in project hadoop by apache.

the class SLSRunner method startAMFromSLSTraces.

/**
   * parse workload information from sls trace files
   */
@SuppressWarnings("unchecked")
private void startAMFromSLSTraces(Resource containerResource, int heartbeatInterval) throws IOException {
    // parse from sls traces
    JsonFactory jsonF = new JsonFactory();
    ObjectMapper mapper = new ObjectMapper();
    for (String inputTrace : inputTraces) {
        Reader input = new InputStreamReader(new FileInputStream(inputTrace), "UTF-8");
        try {
            Iterator<Map> i = mapper.readValues(jsonF.createParser(input), Map.class);
            while (i.hasNext()) {
                Map jsonJob = i.next();
                // load job information
                long jobStartTime = Long.parseLong(jsonJob.get("job.start.ms").toString());
                long jobFinishTime = Long.parseLong(jsonJob.get("job.end.ms").toString());
                String user = (String) jsonJob.get("job.user");
                if (user == null)
                    user = "default";
                String queue = jsonJob.get("job.queue.name").toString();
                String oldAppId = jsonJob.get("job.id").toString();
                boolean isTracked = trackedApps.contains(oldAppId);
                int queueSize = queueAppNumMap.containsKey(queue) ? queueAppNumMap.get(queue) : 0;
                queueSize++;
                queueAppNumMap.put(queue, queueSize);
                // tasks
                List tasks = (List) jsonJob.get("job.tasks");
                if (tasks == null || tasks.size() == 0) {
                    continue;
                }
                List<ContainerSimulator> containerList = new ArrayList<ContainerSimulator>();
                for (Object o : tasks) {
                    Map jsonTask = (Map) o;
                    String hostname = jsonTask.get("container.host").toString();
                    long taskStart = Long.parseLong(jsonTask.get("container.start.ms").toString());
                    long taskFinish = Long.parseLong(jsonTask.get("container.end.ms").toString());
                    long lifeTime = taskFinish - taskStart;
                    // Set memory and vcores from job trace file
                    Resource res = Resources.clone(containerResource);
                    if (jsonTask.containsKey("container.memory")) {
                        int containerMemory = Integer.parseInt(jsonTask.get("container.memory").toString());
                        res.setMemorySize(containerMemory);
                    }
                    if (jsonTask.containsKey("container.vcores")) {
                        int containerVCores = Integer.parseInt(jsonTask.get("container.vcores").toString());
                        res.setVirtualCores(containerVCores);
                    }
                    int priority = Integer.parseInt(jsonTask.get("container.priority").toString());
                    String type = jsonTask.get("container.type").toString();
                    containerList.add(new ContainerSimulator(res, lifeTime, hostname, priority, type));
                }
                // create a new AM
                String amType = jsonJob.get("am.type").toString();
                AMSimulator amSim = (AMSimulator) ReflectionUtils.newInstance(amClassMap.get(amType), new Configuration());
                if (amSim != null) {
                    amSim.init(AM_ID++, heartbeatInterval, containerList, rm, this, jobStartTime, jobFinishTime, user, queue, isTracked, oldAppId);
                    runner.schedule(amSim);
                    maxRuntime = Math.max(maxRuntime, jobFinishTime);
                    numTasks += containerList.size();
                    amMap.put(oldAppId, amSim);
                }
            }
        } finally {
            input.close();
        }
    }
}