Package com.higherfrequencytrading.chronicle

Examples of com.higherfrequencytrading.chronicle.Chronicle

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            stringsListener.inSync();
            intListener.inSync();

            replay(stringsListener);
            replay(intListener);
            Chronicle chronicle = new IndexedChronicle(name);
            DataStore dataStore = new DataStore(chronicle, ModelMode.MASTER);
            MapWrapper<String, String> strings = new MapWrapper<String, String>(dataStore, "strings", String.class, String.class, new LinkedHashMap<String, String>(), 16);
            strings.addListener(stringsListener);
            MapWrapper<Integer, Integer> ints = new MapWrapper<Integer, Integer>(dataStore, "ints", Integer.class, Integer.class, new LinkedHashMap<Integer, Integer>(), 16);
            ints.addListener(intListener);

            dataStore.start();

            ints.put(0, 1000);
            strings.put("Hello", "hi");
            ints.put(1, 1001);
            strings.put("World", "all");
            ints.put(2, 1002);

            strings.publishEvent("bye");
            ints.publishEvent("now");

            verify(stringsListener);
            verify(intListener);

            assertEquals("{Hello=hi, World=all}", strings.toString());
            assertEquals("{0=1000, 1=1001, 2=1002}", ints.toString());

            chronicle.close();
        }
        {
            MapListener stringsListener = createMock("strings", MapListener.class);
            stringsListener.eventStart(7, "strings");
            stringsListener.add("!", "end");
            stringsListener.eventEnd(true);

            MapListener intListener = createMock("ints", MapListener.class);

            intListener.eventStart(8, "ints");
            intListener.add(3, 1003);
            intListener.eventEnd(true);

            stringsListener.inSync();
            intListener.inSync();

            replay(stringsListener);
            replay(intListener);

            Chronicle chronicle = new IndexedChronicle(name);
            DataStore dataStore = new DataStore(chronicle, ModelMode.MASTER);
            MapWrapper<String, String> strings = new MapWrapper<String, String>(dataStore, "strings", String.class, String.class, new LinkedHashMap<String, String>(), 16);
            strings.addListener(stringsListener);
            MapWrapper<Integer, Integer> ints = new MapWrapper<Integer, Integer>(dataStore, "ints", Integer.class, Integer.class, new LinkedHashMap<Integer, Integer>(), 16);
            ints.addListener(intListener);

            // assume we have  all the events written so far
            dataStore.start(chronicle.size() - 1);

            strings.put("!", "end");
            ints.put(3, 1003);

            verify(stringsListener);
            verify(intListener);

            assertEquals("{Hello=hi, World=all, !=end}", strings.toString());
            assertEquals("{0=1000, 1=1001, 2=1002, 3=1003}", ints.toString());
            chronicle.close();
        }
    }
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        String name = TMP + "/map-perf";
        ChronicleTools.deleteOnExit(name);
        long start = System.nanoTime();
        int size = 0;
        {
            Chronicle chronicle = new IndexedChronicle(name);
            DataStore dataStore = new DataStore(chronicle, ModelMode.MASTER);
            MapWrapper<String, String> strings = new MapWrapper<String, String>(dataStore, "strings", String.class, String.class, new LinkedHashMap<String, String>(), 16);
            MapWrapper<Integer, Integer> ints = new MapWrapper<Integer, Integer>(dataStore, "ints", Integer.class, Integer.class, new LinkedHashMap<Integer, Integer>(), 16);
            dataStore.start();
            ints.clear();
            strings.clear();

            for (int j = 0; j < 10000; j++) {
                for (int i = 0; i < 100; i++) {
                    ints.put(i, i + j);
                    strings.put(Integer.toString(i), Integer.toString(i + j));
                }
                size += Math.min(strings.size(), ints.size());
                for (int i = 0; i < 100; i++) {
                    ints.remove(i);
                    strings.remove(Integer.toString(i));
                }
            }

            chronicle.close();
        }
        long mid = System.nanoTime();
        {
            Chronicle chronicle = new IndexedChronicle(name);
            DataStore dataStore = new DataStore(chronicle, ModelMode.MASTER);
            MapWrapper<String, String> strings = new MapWrapper<String, String>(dataStore, "strings", String.class, String.class, new LinkedHashMap<String, String>(), 16);
            MapWrapper<Integer, Integer> ints = new MapWrapper<Integer, Integer>(dataStore, "ints", Integer.class, Integer.class, new LinkedHashMap<Integer, Integer>(), 16);
            dataStore.start();
            chronicle.close();
        }
        long end = System.nanoTime();
        System.out.printf("Took %.1f seconds avg to add&remove %,d elements and %.1f seconds avg to reload them%n",
                (mid - start) / 2e9, size, (end - mid) / 2e9);
    }
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    public static final int NUMBER_OF_ENTRIES = 12;


    @Test
    public void testHasNextIndexFail() throws IOException {
        final Chronicle chr = createChronicle("hasNextFail");

        final Excerpt readExcerpt = chr.createExcerpt();
        assertTrue("Read excerpt should have next index", readExcerpt.hasNextIndex());
        assertTrue("It should be possible to move to next index", readExcerpt.nextIndex());
    }
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        assertTrue("It should be possible to move to next index", readExcerpt.nextIndex());
    }

    @Test
    public void testHasNextIndexPass() throws IOException {
        final Chronicle chr = createChronicle("hasNextPass");

        final Excerpt readExcerpt = chr.createExcerpt();
        assertTrue("It should be possible to move to next index", readExcerpt.nextIndex());
        assertTrue("Read excerpt should have next index", readExcerpt.hasNextIndex());
    }
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        assertTrue("Read excerpt should have next index", readExcerpt.hasNextIndex());
    }

    @Test
    public void testHasNextIndexIteration() throws IOException {
        final Chronicle chr = createChronicle("testIteration");

        final Excerpt readExcerpt = chr.createExcerpt();
        readExcerpt.index(0);

        while (readExcerpt.hasNextIndex()) {
            assertTrue("I would expect nextIndex() return true after hasNextIndex() returns true",
                    readExcerpt.nextIndex());
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        String baseDir = System.getProperty("java.io.tmpdir");
        String srcBasePath = baseDir + "/IPCT.testOverTCP.source";
        ChronicleTools.deleteOnExit(srcBasePath);
        // NOTE: the sink and source must have different chronicle files.
        final int messages = 3000000;
        final Chronicle source = new InProcessChronicleSource(new IndexedChronicle(srcBasePath), PORT + 1);
        Thread t = new Thread(new Runnable() {
            @Override
            public void run() {
                try {
                    Excerpt excerpt = source.createExcerpt();
                    for (int i = 1; i <= messages; i++) {
                        // use a size which will cause mis-alignment.
                        excerpt.startExcerpt(9);
                        excerpt.writeLong(i);
                        excerpt.writeByte(i);
                        excerpt.finish();
//                        Thread.sleep(1);
                    }
                    System.out.println(System.currentTimeMillis() + ": Finished writing messages");
                } catch (Exception e) {
                    throw new AssertionError(e);
                }

            }
        });

        String snkBasePath = baseDir + "/IPCT.testOverTCP.sink";
        ChronicleTools.deleteOnExit(snkBasePath);
        Chronicle sink = new InProcessChronicleSink(new IndexedChronicle(snkBasePath), "localhost", PORT + 1);

        long start = System.nanoTime();
        t.start();
        Excerpt excerpt = sink.createExcerpt();
        int count = 0;
        for (int i = 1; i <= messages; i++) {
            while (!excerpt.nextIndex())
                count++;
            long n = excerpt.readLong();
            assertEquals(i, n);
            excerpt.finish();
        }
        sink.close();
        System.out.println("There were " + count + " misses");
        t.join();
        source.close();
        long time = System.nanoTime() - start;
        System.out.printf("Messages per second %,d%n", (int) (messages * 1e9 / time));
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    @Test
    public void testPricePublishing() throws IOException, InterruptedException {
        String baseDir = System.getProperty("java.io.tmpdir");
        String sourceName = baseDir + "/price.source";
        ChronicleTools.deleteOnExit(sourceName);
        Chronicle source = new InProcessChronicleSource(new IndexedChronicle(sourceName), PORT + 2);
        PriceWriter pw = new PriceWriter(source.createExcerpt());

        String sinkName = baseDir + "/price.sink";
        ChronicleTools.deleteOnExit(sinkName);
        Chronicle sink = new InProcessChronicleSink(new IndexedChronicle(sinkName), "localhost", PORT + 2);

        final AtomicInteger count = new AtomicInteger();
        PriceReader reader = new PriceReader(sink.createExcerpt(), new PriceListener() {
            @Override
            public void onPrice(long timeInMicros, String symbol, double bp, int bq, double ap, int aq) {
                count.incrementAndGet();
            }
        });
        pw.onPrice(1, "symbol", 99.9, 1, 100.1, 2);
        reader.read();

        long start = System.nanoTime();
        int prices = 12000000;
        for (int i = 1; i <= prices; i++) {
            pw.onPrice(i, "symbol", 99.9, i, 100.1, i + 1);
        }

        long mid = System.nanoTime();
        while (count.get() < prices)
            reader.read();

        long end = System.nanoTime();
        System.out.printf("Took an average of %.2f us to write and %.2f us to read%n",
                (mid - start) / prices / 1e3, (end - mid) / prices / 1e3);


        source.close();
        sink.close();
    }
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    private static final String TMP = System.getProperty("java.io.tmpdir");

    @Test
    public void testChained() throws IOException {
        ChronicleTools.deleteOnExit(TMP + "/chronicle1");
        Chronicle chronicle1 = new IndexedChronicle(TMP + "/chronicle1");
        InProcessChronicleSource source1 = new InProcessChronicleSource(chronicle1, 61111);

        ChronicleTools.deleteOnExit(TMP + "/chronicle2");
        Chronicle chronicle2 = new IndexedChronicle(TMP + "/chronicle2");
        InProcessChronicleSource source2 = new InProcessChronicleSource(chronicle2, 62222);
        InProcessChronicleSink sink2 = new InProcessChronicleSink(source2, "localhost", 61111);

        ChronicleTools.deleteOnExit(TMP + "/chronicle3");
        Chronicle chronicle3 = new IndexedChronicle(TMP + "/chronicle3");
        InProcessChronicleSink sink3 = new InProcessChronicleSink(chronicle3, "localhost", 62222);

        Excerpt excerpt1 = source1.createExcerpt();
        Excerpt excerpt2 = sink2.createExcerpt();
        Excerpt excerpt3 = sink3.createExcerpt();
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            String path = uri.getPath();
            if (path == null)
                throw new AssertionError("uri.path not set for " + contextName);
            if (path.startsWith("/."))
                path = path.substring(1);
            final Chronicle chronicle;
            switch (mode) {
                case MASTER:
                    chronicle = new InProcessChronicleSource(new IndexedChronicle(path), uri.getPort());
                    break;
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Related Classes of com.higherfrequencytrading.chronicle.Chronicle

  • com.higherfrequencytrading.chronicle.datamodel.DataStoreSet
  • com.higherfrequencytrading.chronicle.datamodel.DataStoreTest
  • com.higherfrequencytrading.chronicle.datamodel.ListWrapperTest
  • com.higherfrequencytrading.chronicle.datamodel.MapWrapperTest
  • com.higherfrequencytrading.chronicle.datamodel.SetWrapperTest
  • com.higherfrequencytrading.chronicle.example.JETest
  • com.higherfrequencytrading.chronicle.impl.ChainedInProcessChronicleTest
  • com.higherfrequencytrading.chronicle.impl.ExcerptHasNextTest
  • com.higherfrequencytrading.chronicle.impl.InProcessChronicleTest
  • com.higherfrequencytrading.chronicle.perf.PackedHashedTableTest
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