Events
======

Events allow you to capture metrics on your application’s HTTP calls. Use events to monitor:

 * The size and frequency of the HTTP calls your application makes. If you’re making too many calls, or your calls are too large, you should know about it!
 * The performance of these calls on the underlying network. If the network’s performance isn’t sufficient, you need to either improve the network or use less of it.

### EventListener

- All aggregation, conditional, type-conversion and string functions are supported.
- JSON path expressions such as `FROM S3Object[*].path` are not yet evaluated.
- Large numbers (outside of the signed 64-bit range) are not yet supported.

// A chunk has the following format:
//
//	<chunk-size-as-hex> + ";chunk-signature=" + <signature-as-hex> + "\r\n" + <payload> + "\r\n"
//
// First, we read the chunk size but fail if it is larger
// than 16 MiB. We must not accept arbitrary large chunks.
// One 16 MiB is a reasonable max limit.
//
// Then we read the signature and payload data. We compute the SHA256 checksum

        // Act
        int bytesWritten = trans.writeDataWireFormat(dst, 0);

        // Assert
        assertEquals(0, bytesWritten);
    }

    @Test
    @DisplayName("Test with large FID value")
    void testWithLargeFid() {
        // Arrange
        int largeFid = 0xFFFF;
        TransTransactNamedPipe trans = new TransTransactNamedPipe(mockConfig, largeFid, TEST_DATA, TEST_OFFSET, TEST_LENGTH);

  val eventRecorder = EventRecorder()

  @BeforeEach
  fun setUp() {
    if (connectionType == H2) {
      platform.assumeHttp2Support()
    }

    // Sockets on some platforms can have large buffers that mean writes do not block when
    // required. These socket factories explicitly set the buffer sizes on sockets created.
    server = MockWebServer()
    server.serverSocketFactory =

    bytesIn.writeShort(0xff00) // == Indexed - Add idx = 127
    assertFailsWith<IOException> {
      hpackReader!!.readHeaders()
    }.also { expected ->
      assertThat(expected.message).isEqualTo("Header index too large 127")
    }
  }

  // Example taken from twitter/hpack DecoderTest.testInsidiousIndex
  @Test
  fun readIndexedHeaderFieldInsidiousIndex() {
    bytesIn.writeByte(0xff) // == Indexed - Add ==

            sb.setLength(0); // Reset length
        }
        return sb;
    }

    private void returnStringBuilder(StringBuilder sb) {
        if (sb != null && sb.capacity() < 2048) { // Avoid keeping very large builders
            stringBuilderPool.offer(sb);
        }
    }

    private Map<String, Object> getContextMap() {
        HashMap<String, Object> map = mapPool.poll();
        if (map == null) {

			return fmt.Errorf("Default retention period too large for 'Days' %d", *retention.Days)
		}
	} else if *retention.Years == 0 {
		return fmt.Errorf("Default retention period must be a positive integer value for 'Years'")
	} else if *retention.Years > maximumRetentionYears {
		return fmt.Errorf("Default retention period too large for 'Years' %d", *retention.Years)
	}

	*dr = DefaultRetention(retention)

    @ParameterizedTest
    @ValueSource(ints = { 0, 10, 50, 100 })
    void testReadDataWireFormatWithDifferentOffsets(int offset) throws Exception {
        // Create a buffer large enough for offset + data
        byte[] buffer = createValidSecurityDescriptorBuffer(offset + 100);

        // Set error code to 0
        setErrorCode(response, 0);

        }
        longPath.append("file.txt");

        trans2QueryPathInfo = new Trans2QueryPathInformation(config, longPath.toString(), TEST_INFO_LEVEL);

        byte[] buffer = new byte[8192]; // Large buffer for long path
        int written = trans2QueryPathInfo.writeParametersWireFormat(buffer, 0);

        // Should write the entire path
        assertTrue(written > longPath.length());