Examples with DataPointIterator com.srotya.sidewinder.core.storage.DataPointIterator used on opensource projects

Example 1 with DataPointIterator

use of com.srotya.sidewinder.core.storage.DataPointIterator in project sidewinder by srotya.

the class GrafanaOutputv2Iterator method next.

@Override
public GrafanaOutputv2 next() {
    SeriesOutputv2 entry = iterator.next();
    GrafanaOutputv2 tar = new GrafanaOutputv2(entry.toString(), entry.isFp());
    DataPointIterator iterator = entry.getIterator();
    if (iterator != null) {
        tar.setPointsIterator(iterator);
    }
    return tar;
}

Example 2 with DataPointIterator

use of com.srotya.sidewinder.core.storage.DataPointIterator in project sidewinder by srotya.

the class FunctionIteratorFactory method build.

public DataPointIterator build(DataPointIterator iterator, boolean isFp) throws Exception {
    DataPointIterator functionIterator = iterator;
    // chain all the function outputs
    for (FunctionTemplate template : templateChain) {
        FunctionIterator temp = template.getConstructor().newInstance(functionIterator, isFp);
        temp.init(template.getArgs());
        functionIterator = temp;
    }
    return functionIterator;
}

Example 3 with DataPointIterator

use of com.srotya.sidewinder.core.storage.DataPointIterator in project sidewinder by srotya.

the class TestDownSamplingIFunction method testBasicSumDownSampling.

@Test
public void testBasicSumDownSampling() throws IOException {
    Field tField = new TimeField(measurement, new LinkedByteString().concat(new ByteString("time")), 121213, new HashMap<>());
    long ts = 1546755994280L;
    for (int i = 0; i < 100; i++) {
        tField.addDataPoint(measurement, ts + i * 1000);
    }
    Field vField = new ValueField(measurement, new LinkedByteString().concat(new ByteString("field1")), 121213, new HashMap<>());
    for (int i = 0; i < 100; i++) {
        vField.addDataPoint(measurement, i);
    }
    DataPointIterator itr = new DataPointIterator(tField.queryReader(null, new NoLock()), vField.queryReader(null, new NoLock()));
    DownsampleFunction f = new DownsampleFunction(itr, 5, TimeUnit.SECONDS, ((x, y) -> (x + y)));
    int c = 0;
    while (f.hasNext()) {
        DataPoint next = f.next();
        if (c < 20) {
            assertEquals(ts + c * 1000 * 5, next.getTimestamp());
        }
        c++;
    }
    assertEquals(21, c);
    itr = new DataPointIterator(tField.queryReader(null, new NoLock()), vField.queryReader(null, new NoLock()));
    f = new DownsampleFunction(itr, 10, TimeUnit.SECONDS, ((x, y) -> (x + y) / 2));
    c = 0;
    while (f.hasNext()) {
        DataPoint next = f.next();
        if (c < 10) {
            assertEquals(ts + c * 1000 * 10, next.getTimestamp());
        }
        c++;
    }
    assertEquals(10, c, 1);
}

Example 4 with DataPointIterator

use of com.srotya.sidewinder.core.storage.DataPointIterator in project sidewinder by srotya.

the class TestBasicSingleFunctions method before.

@Before
public void before() throws IOException {
    measurement = new MockMeasurement(32768, 100);
    TimeField.compressionClass = CompressionFactory.getTimeClassByName("byzantine");
    Field tField = new TimeField(measurement, new LinkedByteString().concat(new ByteString("time")), 121213, new HashMap<>());
    long ts = 1546755991280L;
    for (int i = 0; i < 200; i++) {
        tField.addDataPoint(measurement, ts + i * 1000);
    }
    Field vField = new ValueField(measurement, new LinkedByteString().concat(new ByteString("field1")), 121213, new HashMap<>());
    for (int i = 0; i < 100; i++) {
        vField.addDataPoint(measurement, i * 1L);
    }
    for (int i = 100; i > 0; i--) {
        vField.addDataPoint(measurement, i * 1L);
    }
    itr = new DataPointIterator(tField.queryReader(null, new NoLock()), vField.queryReader(null, new NoLock()));
}

Example 5 with DataPointIterator

use of com.srotya.sidewinder.core.storage.DataPointIterator in project sidewinder by srotya.

the class GrafanaStreamingOutput method serializeOutput.

private boolean serializeOutput(OutputStream os, Iterator<GrafanaOutputv2> itr) throws IOException {
    GrafanaOutputv2 gOutput = itr.next();
    if (gOutput.getPointsIterator() != null) {
        DataPointIterator pointsIterator = gOutput.getPointsIterator();
        if (pointsIterator.hasNext()) {
            os.write(("{\"target\":\"" + gOutput.getTarget() + "\",\"datapoints\":[").getBytes());
            serializePoint(os, pointsIterator, gOutput);
            while (pointsIterator.hasNext()) {
                os.write(',');
                serializePoint(os, pointsIterator, gOutput);
            }
            os.write(']');
            os.write('}');
            return true;
        } else {
            return false;
        }
    } else {
        return false;
    }
}