## Get started

### 1. Prerequisites

- Docker 18.03 or above, refer here for [installation](https://docs.docker.com/install/).

### 2. Start etcd

etcd uses [gcr.io/etcd-development/etcd](https://console.cloud.google.com/gcr/images/etcd-development/GLOBAL/etcd) as a primary container registry.

```
rm -rf /tmp/etcd-data.tmp && mkdir -p /tmp/etcd-data.tmp && \

     * @param objs the log objects
     */
    protected void processCleanupCrawling(final Object... objs) {
        // CrawlerContext crawlerContext = (CrawlerContext) objs[0];
    }

    /**
     * Processes start crawling log events.
     *
     * @param objs the log objects (should contain UrlQueue)
     */
    protected void processStartCrawling(final Object... objs) {

        int fid = 256;
        long lwt = 9876543210L;
        SmbComClose close = new SmbComClose(fid, lwt);
        String s = close.toString();
        assertTrue(s.startsWith("SmbComClose["), "string should start with class name");
        assertTrue(s.contains("fid=" + fid), "string should contain the fid value");
        assertTrue(s.contains("lastWriteTime=" + lwt), "string should contain the lwt value");
    }

            }
          },
        ).setPriority(REQUEST_PRIORITY_MEDIUM)
        .setDirectExecutorAllowed(true)
        .setTrafficStatsTag(101)
        .build()

    req.start()
    return completableFuture
  }

  @Test
  fun urlConnection() {
    val conn = engine.openConnection(URL("https://google.com/robots.txt")) as HttpURLConnection

    val text =

                            System.currentTimeMillis() - 5000);
                }
            });
            updateThreads[i].start();
        }

        // Test concurrent reads
        Thread[] readThreads = new Thread[3];
        for (int i = 0; i < readThreads.length; i++) {
            readThreads[i] = new Thread(() -> {

	tx := db.Begin()
	defer func() {
		if r := recover(); r != nil {
			tx.Rollback()
		}
	}()
	if err := tx.Error; err != nil {
		t.Errorf("Failed to start transaction, got error %v\n", err)
	}

	if err := tx.Where("name=?", "zzjin").Delete(&User{}).Error; err != nil {
		tx.Rollback()
		t.Errorf("Failed to run one transaction, got error %v\n", err)
	}

@Deprecated(since = "4.0.0")
public class ObjectBasedValueSource extends AbstractValueSource {

    private final Object root;

    /**
     * Construct a new value source, using the supplied object as the root from
     * which to start, and using expressions split at the dot ('.') to navigate
     * the object graph beneath this root.
     * @param root the root of the graph.
     */
    public ObjectBasedValueSource(Object root) {
        super(true);

                boolean haveResponseCalled = false;

                @Override
                protected void haveResponse(byte[] buffer, int start, int len) throws SMBProtocolDecodingException {
                    haveResponseCalled = true;
                    super.haveResponse(buffer, start, len);
                }
            };

            byte[] buffer = new byte[256];

)

func loadProcStatMetrics(ctx context.Context, stat procfs.ProcStat, m MetricValues) {
	if stat.CPUTime() > 0 {
		m.Set(processCPUTotalSeconds, float64(stat.CPUTime()))
	}

	if stat.ResidentMemory() > 0 {
		m.Set(processResidentMemoryBytes, float64(stat.ResidentMemory()))
	}

	if stat.VirtualMemory() > 0 {
		m.Set(processVirtualMemoryBytes, float64(stat.VirtualMemory()))
	}

	startTime, err := stat.StartTime()

```json
{"colors":["red","green","blue"],"desc":"RGB"}
{"colors":["cyan","magenta","yellow","black"],"desc":"CMYK"}
```

detailed output with `-v` option:
```bash
cat input.json | jstream -v -d -1

depth	start	end	type   | value
2	018	023	string | "RGB"
3	041	046	string | "red"
3	048	055	string | "green"
3	057	063	string | "blue"
2	039	065	array  | ["red","green","blue"]