int decodeString(final ByteBuffer src, final StringBuilder buf) throws HPackException, CharacterCodingException { clearState(); decodeString(this.contentBuf, src); final int binaryLen = this.contentBuf.length(); if (this.charsetDecoder == null) { buf.ensureCapacity(binaryLen); for (int i = 0; i < binaryLen; i++) { buf.append((char) (this.contentBuf.byteAt(i) & 0xff)); } } else { final ByteBuffer in = ByteBuffer.wrap(this.contentBuf.array(), 0, binaryLen); while (in.hasRemaining()) { ensureCapacity(in.remaining()); final CoderResult result = this.charsetDecoder.decode(in, this.tmpBuf, true); if (result.isError()) { result.throwException(); } } ensureCapacity(8); final CoderResult result = this.charsetDecoder.flush(this.tmpBuf); if (result.isError()) { result.throwException(); } this.tmpBuf.flip(); buf.append(this.tmpBuf); } return binaryLen; }
@Test public void testAppendOneByte() throws Exception { final ByteArrayBuffer buffer = new ByteArrayBuffer(4); Assert.assertEquals(4, buffer.capacity()); final byte[] tmp = new byte[] { 1, 127, -1, -128, 1, -2}; for (final byte element : tmp) { buffer.append(element); } Assert.assertEquals(8, buffer.capacity()); Assert.assertEquals(6, buffer.length()); for (int i = 0; i < tmp.length; i++) { Assert.assertEquals(tmp[i], buffer.byteAt(i)); } }
@Test public void testSimpleAppend() throws Exception { final ByteArrayBuffer buffer = new ByteArrayBuffer(16); Assert.assertEquals(16, buffer.capacity()); Assert.assertEquals(0, buffer.length()); final byte[] b1 = buffer.toByteArray(); Assert.assertNotNull(b1); Assert.assertEquals(0, b1.length); Assert.assertTrue(buffer.isEmpty()); Assert.assertFalse(buffer.isFull()); final byte[] tmp = new byte[] { 1, 2, 3, 4}; buffer.append(tmp, 0, tmp.length); Assert.assertEquals(16, buffer.capacity()); Assert.assertEquals(4, buffer.length()); Assert.assertFalse(buffer.isEmpty()); Assert.assertFalse(buffer.isFull()); final byte[] b2 = buffer.toByteArray(); Assert.assertNotNull(b2); Assert.assertEquals(4, b2.length); for (int i = 0; i < tmp.length; i++) { Assert.assertEquals(tmp[i], b2[i]); Assert.assertEquals(tmp[i], buffer.byteAt(i)); } buffer.clear(); Assert.assertEquals(16, buffer.capacity()); Assert.assertEquals(0, buffer.length()); Assert.assertTrue(buffer.isEmpty()); Assert.assertFalse(buffer.isFull()); }