Examples with StoreAppender net.openhft.chronicle.queue.impl.single.SingleChronicleQueueExcerpts.StoreAppender used on opensource projects

Example 1 with StoreAppender

use of net.openhft.chronicle.queue.impl.single.SingleChronicleQueueExcerpts.StoreAppender in project Chronicle-Queue by OpenHFT.

the class SingleChronicleQueueTest method writeBytesAndIndexFiveTimesWithOverwriteTest.

@Test
public void writeBytesAndIndexFiveTimesWithOverwriteTest() {
    try (final SingleChronicleQueue sourceQueue = builder(DirectoryUtils.tempDir("to-be-deleted"), wireType).testBlockSize().build()) {
        for (int i = 0; i < 5; i++) {
            ExcerptAppender excerptAppender = sourceQueue.acquireAppender();
            try (DocumentContext dc = excerptAppender.writingDocument()) {
                dc.wire().write("hello").text("world" + i);
            }
        }
        ExcerptTailer tailer = sourceQueue.createTailer();
        try (final SingleChronicleQueue queue = builder(DirectoryUtils.tempDir("to-be-deleted"), wireType).testBlockSize().build()) {
            ExcerptAppender appender0 = queue.acquireAppender();
            if (!(appender0 instanceof InternalAppender))
                return;
            InternalAppender appender = (InternalAppender) appender0;
            if (!(appender instanceof StoreAppender))
                return;
            List<BytesWithIndex> bytesWithIndies = new ArrayList<>();
            try {
                for (int i = 0; i < 5; i++) {
                    bytesWithIndies.add(bytes(tailer));
                }
                for (int i = 0; i < 4; i++) {
                    BytesWithIndex b = bytesWithIndies.get(i);
                    appender.writeBytes(b.index, b.bytes);
                }
                for (int i = 0; i < 4; i++) {
                    BytesWithIndex b = bytesWithIndies.get(i);
                    appender.writeBytes(b.index, b.bytes);
                }
                BytesWithIndex b = bytesWithIndies.get(4);
                appender.writeBytes(b.index, b.bytes);
                ((StoreAppender) appender).checkWritePositionHeaderNumber();
                appender0.writeText("hello");
            } finally {
                closeQuietly(bytesWithIndies);
            }
            System.out.println(queue.dump());
            Assert.assertTrue(queue.dump().contains("--- !!data #binary\n" + "hello: world0\n" + "# position: 1041, header: 1\n" + "--- !!data #binary\n" + "hello: world1\n" + "# position: 1058, header: 2\n" + "--- !!data #binary\n" + "hello: world2\n" + "# position: 1075, header: 3\n" + "--- !!data #binary\n" + "hello: world3\n" + "# position: 1092, header: 4\n" + "--- !!data #binary\n" + "hello: world4\n" + "# position: 1109, header: 5\n" + "--- !!data\n" + "hello\n"));
        }
    }
}