Package org.apache.mina.core.buffer

Examples of org.apache.mina.core.buffer.IoBuffer.clear()

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        buf.clear();
        assertEquals("A", buf.getString(2, decoder));
        assertEquals(2, buf.position());

        buf.clear();
        try {
            buf.getString(1, decoder);
            fail();
        } catch (IllegalArgumentException e) {
            // ignore
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        } catch (IllegalArgumentException e) {
            // ignore
        }

        // Test getting strings from an empty buffer.
        buf.clear();
        buf.limit(0);
        assertEquals("", buf.getString(decoder));
        assertEquals("", buf.getString(2, decoder));

        // Test getting strings from non-empty buffer which is filled with 0x00
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        buf.limit(0);
        assertEquals("", buf.getString(decoder));
        assertEquals("", buf.getString(2, decoder));

        // Test getting strings from non-empty buffer which is filled with 0x00
        buf.clear();
        buf.putInt(0);
        buf.clear();
        buf.limit(4);
        assertEquals("", buf.getString(decoder));
        assertEquals(2, buf.position());
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        assertEquals("", buf.getString(2, decoder));

        // Test getting strings from non-empty buffer which is filled with 0x00
        buf.clear();
        buf.putInt(0);
        buf.clear();
        buf.limit(4);
        assertEquals("", buf.getString(decoder));
        assertEquals(2, buf.position());
        assertEquals(4, buf.limit());
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        IoBuffer buf = IoBuffer.allocate(16);
        encoder = Charset.forName("ISO-8859-1").newEncoder();

        buf.putString("ABC", encoder);
        assertEquals(3, buf.position());
        buf.clear();
        assertEquals('A', buf.get(0));
        assertEquals('B', buf.get(1));
        assertEquals('C', buf.get(2));

        buf.putString("D", 5, encoder);
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        assertEquals('B', buf.get(1));
        assertEquals('C', buf.get(2));

        buf.putString("D", 5, encoder);
        assertEquals(5, buf.position());
        buf.clear();
        assertEquals('D', buf.get(0));
        assertEquals(0, buf.get(1));

        buf.putString("EFG", 2, encoder);
        assertEquals(2, buf.position());
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        assertEquals('D', buf.get(0));
        assertEquals(0, buf.get(1));

        buf.putString("EFG", 2, encoder);
        assertEquals(2, buf.position());
        buf.clear();
        assertEquals('E', buf.get(0));
        assertEquals('F', buf.get(1));
        assertEquals('C', buf.get(2)); // C may not be overwritten

        // UTF-16: We specify byte order to omit BOM.
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        assertEquals('F', buf.get(1));
        assertEquals('C', buf.get(2)); // C may not be overwritten

        // UTF-16: We specify byte order to omit BOM.
        encoder = Charset.forName("UTF-16BE").newEncoder();
        buf.clear();

        buf.putString("ABC", encoder);
        assertEquals(6, buf.position());
        buf.clear();
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        encoder = Charset.forName("UTF-16BE").newEncoder();
        buf.clear();

        buf.putString("ABC", encoder);
        assertEquals(6, buf.position());
        buf.clear();

        assertEquals(0, buf.get(0));
        assertEquals('A', buf.get(1));
        assertEquals(0, buf.get(2));
        assertEquals('B', buf.get(3));
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        assertEquals(0, buf.get(4));
        assertEquals('C', buf.get(5));

        buf.putString("D", 10, encoder);
        assertEquals(10, buf.position());
        buf.clear();
        assertEquals(0, buf.get(0));
        assertEquals('D', buf.get(1));
        assertEquals(0, buf.get(2));
        assertEquals(0, buf.get(3));
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