Examples of com.asakusafw.runtime.value.StringOption

com.asakusafw.runtime.value.StringOption

{@code null}値を許容する文字列。

この文字列を比較する場合、次のように書くとよい。

 class Something { static final StringOption TARGET = new StringOption("something"); void something(Hoge hoge) { if (hoge.getValueOption().equals(TARGET)) { .... } } }

        return new HiveVarchar(object.getAsString(), length);
    }


    @Override
    public HiveVarcharWritable getPrimitiveWritableObject(Object o) {
        StringOption object = (StringOption) o;
        if (object == null || object.isNull()) {
            return null;
        }
        HiveVarcharWritable writable = new HiveVarcharWritable();
        writable.getTextValue().set(object.get());
        return writable;
    }

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        ModelWrapper buffer = loaded.newModel("FileName");
        ModelInput<Object> reader = unsafe.createInput(model.unwrap().getClass(), "hello.tsv", in(output),
                0, size(output));
        assertThat(reader.readTo(buffer.unwrap()), is(true));
        assertThat(buffer.getOption("value"), is((Object) new StringOption("Hello, world!")));
        assertThat(buffer.getOption("path"), is((Object) new StringOption("hello.tsv")));
        assertThat(reader.readTo(buffer.unwrap()), is(false));
    }

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        writer.close();


        ModelInput<Object> reader = support.createInput(model.unwrap().getClass(), "testing", in(output),
                0, size(output));
        assertThat(reader.readTo(buffer.unwrap()), is(true));
        assertThat(buffer.getOption("value"), is((Object) new StringOption("Hello, world!")));
        assertThat(buffer.getOption("path"), is((Object) new StringOption("testing")));
        assertThat(reader.readTo(buffer.unwrap()), is(false));
    }

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        writer.close();


        ModelInput<Object> reader = support.createInput(model.unwrap().getClass(), "testing", in(output),
                0, size(output));
        assertThat(reader.readTo(buffer.unwrap()), is(true));
        assertThat(buffer.getOption("value"), is((Object) new StringOption("Hello\nworld!")));
        assertThat(buffer.getOption("number"), is((Object) new IntOption(1)));
        assertThat(reader.readTo(buffer.unwrap()), is(true));
        assertThat(buffer.getOption("value"), is((Object) new StringOption("Hello\nworld!")));
        assertThat(buffer.getOption("number"), is((Object) new IntOption(3)));
        assertThat(reader.readTo(buffer.unwrap()), is(false));
    }

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        writer.close();


        ModelInput<Object> reader = support.createInput(model.unwrap().getClass(), "testing", in(output),
                0, size(output));
        assertThat(reader.readTo(buffer.unwrap()), is(true));
        assertThat(buffer.getOption("value"), is((Object) new StringOption("Hello\nworld!")));
        assertThat(buffer.getOption("number"), is((Object) new LongOption(1)));
        assertThat(reader.readTo(buffer.unwrap()), is(true));
        assertThat(buffer.getOption("value"), is((Object) new StringOption("Hello\nworld!")));
        assertThat(buffer.getOption("number"), is((Object) new LongOption(2)));
        assertThat(reader.readTo(buffer.unwrap()), is(false));
    }

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        writer.close();


        ModelInput<Object> reader = support.createInput(model.unwrap().getClass(), "testing", in(output),
                0, size(output));
        assertThat(reader.readTo(buffer.unwrap()), is(true));
        assertThat(buffer.getOption("value"), is((Object) new StringOption("Hello, world!")));
        assertThat(buffer.getOption("ignored"), is((Object) new StringOption()));
        assertThat(reader.readTo(buffer.unwrap()), is(false));
    }

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                CsvConfiguration.DEFAULT_DATE_TIME_FORMAT);
        ByteArrayInputStream input = new ByteArrayInputStream(string.getBytes(conf.getCharset()));
        CsvParser parser = new CsvParser(input, string, conf);
        List<String[]> results = Lists.create();
        try {
            StringOption buffer = new StringOption();
            while (parser.next()) {
                String[] line = new String[columns];
                for (int i = 0; i < columns; i++) {
                    parser.fill(buffer);
                    line[i] = buffer.or((String) null);
                }
                parser.endRecord();
                results.add(line);
            }
            parser.close();

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        ((StringOption) union.switchObject(2)).modify("Hello, world!");
        assertThat(union.getPosition(), is(2));


        assertThat(union.switchObject(0), is((Object) new IntOption(100)));
        assertThat(union.switchObject(1), is((Object) new LongOption(200L)));
        assertThat(union.switchObject(2), is((Object) new StringOption("Hello, world!")));
    }

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    @Test
    public void createFromObject() throws Exception {
        Union union = new WritableUnion(
                new IntOption(100),
                new LongOption(200L),
                new StringOption("Hello, world!"));
        assertThat(union.switchObject(0), is((Object) new IntOption(100)));
        assertThat(union.switchObject(1), is((Object) new LongOption(200L)));
        assertThat(union.switchObject(2), is((Object) new StringOption("Hello, world!")));
    }

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    @Test
    public void serialize() throws Exception {
        WritableUnion union = new WritableUnion(
                new IntOption(100),
                new LongOption(200L),
                new StringOption("Hello, world!"),
                new StringOption());


        StringBuilder buf = new StringBuilder(100000);
        for (int i = 0, n = buf.capacity(); i < n; i++) {
            buf.append((char) ('A' + (i * 257 % 26)));
        }
        ((StringOption) union.switchObject(3)).modify(buf.toString());


        WritableUnion r0 = new WritableUnion(IntOption.class, LongOption.class, StringOption.class);
        union.switchObject(0);
        byte[] s0 = ser(union);
        des(r0, s0);
        assertThat(r0.getPosition(), is(0));
        assertThat(r0.getObject(), is((Object) new IntOption(100)));


        WritableUnion r1 = new WritableUnion(IntOption.class, LongOption.class, StringOption.class);
        union.switchObject(1);
        byte[] s1 = ser(union);
        des(r1, s1);
        assertThat(r1.getPosition(), is(1));
        assertThat(r1.getObject(), is((Object) new LongOption(200L)));


        WritableUnion r2 = new WritableUnion(IntOption.class, LongOption.class, StringOption.class);
        union.switchObject(2);
        byte[] s2 = ser(union);
        des(r2, s2);
        assertThat(r2.getPosition(), is(2));
        assertThat(r2.getObject(), is((Object) new StringOption("Hello, world!")));


        byte[] large = ser((StringOption) union.switchObject(3));
        assertThat(s0.length, lessThan(large.length));
        assertThat(s1.length, lessThan(large.length));
        assertThat(s2.length, lessThan(large.length));

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