Examples of ScalarValueJsonExtractor

Examples of com.facebook.presto.operator.scalar.JsonExtract.ScalarValueJsonExtractor

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    @Test
    public void testObjectFieldJsonExtractor()
            throws Exception
    {
        ObjectFieldJsonExtractor<Slice> extractor = new ObjectFieldJsonExtractor<>("fuu", new ScalarValueJsonExtractor());

        assertEquals(doExtract(extractor, "{}"), null);
        assertEquals(doExtract(extractor, "{\"a\": 1}"), null);
        assertEquals(doExtract(extractor, "{\"fuu\": 1}"), "1");
        assertEquals(doExtract(extractor, "{\"a\": 0, \"fuu\": 1}"), "1");
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Examples of com.facebook.presto.operator.scalar.JsonExtract.ScalarValueJsonExtractor

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    }

    private static String doScalarExtract(String inputJson, String jsonPath)
            throws IOException
    {
        Slice value = JsonExtract.extractInternal(Slices.wrappedBuffer(inputJson.getBytes(Charsets.UTF_8)), generateExtractor(jsonPath, new ScalarValueJsonExtractor()));
        return (value == null) ? null : value.toString(Charsets.UTF_8);
    }
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Examples of com.facebook.presto.operator.scalar.JsonExtract.ScalarValueJsonExtractor

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{
    @Test
    public void testScalarVaueJsonExtractor()
            throws Exception
    {
        ScalarValueJsonExtractor extractor = new ScalarValueJsonExtractor();

        // Check scalar values
        assertEquals(doExtract(extractor, "123"), "123");
        assertEquals(doExtract(extractor, "-1"), "-1");
        assertEquals(doExtract(extractor, "0.01"), "0.01");
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Examples of com.facebook.presto.operator.scalar.JsonExtract.ScalarValueJsonExtractor

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    @Test
    public void testArrayElementJsonExtractor()
            throws Exception
    {
        ArrayElementJsonExtractor firstExtractor = new ArrayElementJsonExtractor(0, new ScalarValueJsonExtractor());
        ArrayElementJsonExtractor secondExtractor = new ArrayElementJsonExtractor(1, new ScalarValueJsonExtractor());

        assertEquals(doExtract(firstExtractor, "[]"), null);
        assertEquals(doExtract(firstExtractor, "[1, 2, 3]"), "1");
        assertEquals(doExtract(secondExtractor, "[1, 2]"), "2");
        assertEquals(doExtract(secondExtractor, "[1, null]"), null);
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Examples of com.facebook.presto.operator.scalar.JsonExtract.ScalarValueJsonExtractor

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    @Test
    public void testObjectFieldJsonExtractor()
            throws Exception
    {
        ObjectFieldJsonExtractor extractor = new ObjectFieldJsonExtractor("fuu", new ScalarValueJsonExtractor());

        assertEquals(doExtract(extractor, "{}"), null);
        assertEquals(doExtract(extractor, "{\"a\": 1}"), null);
        assertEquals(doExtract(extractor, "{\"fuu\": 1}"), "1");
        assertEquals(doExtract(extractor, "{\"a\": 0, \"fuu\": 1}"), "1");
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