[IGNITE-16062] Support binary HANLDEs: Unable read object array twice.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Ignite Flags: Docs Required, Release Notes Required
• Assignee: Vladimir Ermakov
• Reporter: Vladimir Ermakov
• Created: 06/Dec/21 12:23
• Updated: 06/Dec/21 14:22
• Resolved: 06/Dec/21 14:16

Description

"Looks like this commit introduce a blocker.
Second read of array field fail and read some garbage.
This happen because when object read with handle stream position don't move to the end of already deserialized object.
So second array element is just random bytes from the middle of the stream."

 

Reproducer:

    /** */
    @Test
    public void testArrayFieldSeveralRead() throws Exception {
        try (Ignite ignite = startGrid(1)) {
            TestClass1[] expArr = new TestClass1[] {new TestClass1(), new TestClass1()};

            BinaryObject arrObj = ignite.binary().toBinary(new TestClsWithArray(expArr));

            for (int i = 0; i < 10; i++)
                Assert.assertArrayEquals(i + " iteration", expArr, PlatformUtils.unwrapBinariesInArray(arrObj.field("arr")));

            arrObj = ignite.binary().builder(TestClsWithArray.class.getName()).setField("arr", expArr).build();

            for (int i = 0; i < 10; i++)
                Assert.assertArrayEquals(i + " iteration", expArr, PlatformUtils.unwrapBinariesInArray(arrObj.field("arr")));
        }
        finally {
            clearBinaryMeta();
        }
    }

    /** Test class with array. */
    public static class TestClsWithArray {
        /** */
        private final Object[] arr;

        /** */
        public TestClsWithArray(TestClass1[] arr) {
            this.arr = arr;
        }
    } 

Issue Links

• duplicates: IGNITE-16057 Second read of array field from BinaryObject fail
• links to: GitHub Pull Request #9630