Package java.io

Examples of java.io.UTFDataFormatException

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  }

  private IOException utfFormatException() {
    noMoreReads = true;
    closeIn();
    return new UTFDataFormatException();
  }
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        } else if (a == 0) {
            return -1;
        } else if (a < 0x80) {
            return (char)a;
        } else if (a < 0xc0) {
            throw new UTFDataFormatException(INVALID_BYTE);
        } else if (a < 0xe0) {
            final int b = input.read();
            if (b == -1) {
                throw new EOFException();
            } else if ((b & 0xc0) != 0x80) {
                throw new UTFDataFormatException(INVALID_BYTE + ":" + (char)a + "(" + a + ")");
            }
            return (a & 0x1f) << 6 | b & 0x3f;
        } else if (a < 0xf0) {
            final int b = input.read();
            if (b == -1) {
                throw new EOFException();
            } else if ((b & 0xc0) != 0x80) {
                throw new UTFDataFormatException(INVALID_BYTE);
            }
            final int c = input.read();
            if (c == -1) {
                throw new EOFException();
            } else if ((c & 0xc0) != 0x80) {
                throw new UTFDataFormatException(INVALID_BYTE);
            }
            return (a & 0x0f) << 12 | (b & 0x3f) << 6 | c & 0x3f;
        } else {
            throw new UTFDataFormatException(INVALID_BYTE);
        }
    }
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        } else if (a == 0) {
            return -1;
        } else if (a < 0x80) {
            return (char)a;
        } else if (a < 0xc0) {
            throw new UTFDataFormatException(INVALID_BYTE);
        } else if (a < 0xe0) {
            final int b = input.read();
            if (b == -1) {
                throw new EOFException();
            } else if ((b & 0xc0) != 0x80) {
                throw new UTFDataFormatException(INVALID_BYTE);
            }
            return (a & 0x1f) << 6 | b & 0x3f;
        } else if (a < 0xf0) {
            final int b = input.read();
            if (b == -1) {
                throw new EOFException();
            } else if ((b & 0xc0) != 0x80) {
                throw new UTFDataFormatException(INVALID_BYTE);
            }
            final int c = input.read();
            if (c == -1) {
                throw new EOFException();
            } else if ((c & 0xc0) != 0x80) {
                throw new UTFDataFormatException(INVALID_BYTE);
            }
            return (a & 0x0f) << 12 | (b & 0x3f) << 6 | c & 0x3f;
        } else {
            throw new UTFDataFormatException(INVALID_BYTE);
        }
    }
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    private void writeShortUTF(final DataOutput out, final String str, final int beginIndex, final int endIndex,
                               byte[] buffer) throws IOException {
        int utfLength = calculateUtf8Length(str, beginIndex, endIndex);
        if (utfLength > 65535) {
            throw new UTFDataFormatException("encoded string too long:" + utfLength + " bytes");
        }
        out.writeShort(utfLength);
        int i;
        int c = 0;
        int count = 0;
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                return decodeTwoBytesChar(data, charArrCount, c, in, buffer, utflen, count);
            case 14:
                return decodeThreeBytesChar(data, charArrCount, c, in, buffer, utflen, count);
            default:
                /* 10xx xxxx, 1111 xxxx */
                throw new UTFDataFormatException("malformed input around byte " + count);
        }
    }
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    private int decodeThreeBytesChar(char[] data, int charArrCount, int char1, DataInput in, byte[] buffer, int utflen,
                                     int count) throws IOException {
        /* 1110 xxxx 10xx xxxx 10xx xxxx */
        int pos = count;
        if (count + 2 > utflen) {
            throw new UTFDataFormatException("malformed input: partial character at end");
        }
        int char2 = buffered(buffer, pos++, utflen, in);
        int char3 = buffered(buffer, pos++, utflen, in);
        if (((char2 & 0xC0) != 0x80) || ((char3 & 0xC0) != 0x80)) {
            throw new UTFDataFormatException("malformed input around byte " + (count - 1));
        }
        int c1 = (char1 & 0x0F) << 12;
        int c2 = (char2 & 0x3F) << 6;
        int c3 = (char3 & 0x3F) << 0;
        data[charArrCount] = (char) (c1 | c2 | c3);
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            else if ((c & 0x60) == 0x40) // we know the top bit is set here
            {
                // two byte character
                count += 2;
                if (utflen != 0 && count > utflen)
                    throw new UTFDataFormatException();     
                char2 = in.readUnsignedByte();
                if ((char2 & 0xC0) != 0x80)
                    throw new UTFDataFormatException();     
                actualChar = (char)(((c & 0x1F) << 6) | (char2 & 0x3F));
            }
            else if ((c & 0x70) == 0x60) // we know the top bit is set here
            {
                // three byte character
                count += 3;
                if (utflen != 0 && count > utflen)
                    throw new UTFDataFormatException();     
                char2 = in.readUnsignedByte();
                char3 = in.readUnsignedByte();
                if ((c == 0xE0) && (char2 == 0) && (char3 == 0)
                    && (utflen == 0))
                {
                    // we reached the end of a long string,
                    // that was terminated with
                    // (11100000, 00000000, 00000000)
                    break readingLoop;
                }

                if (((char2 & 0xC0) != 0x80) || ((char3 & 0xC0) != 0x80))
                    throw new UTFDataFormatException();     
               
               
                actualChar = (char)(((c & 0x0F) << 12) |
                                           ((char2 & 0x3F) << 6) |
                                           ((char3 & 0x3F) << 0));
            }
            else {

                throw new UTFDataFormatException();
            }

            str[strlen++] = actualChar;
        }
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                break;
            case 12:
            case 13:
                pos += 2;
                if (pos > length) {
                    throw new UTFDataFormatException("bad string");
                }
                c2 = (int)buf[pos - 1];
                if ((c2 & 0xC0) != 0x80) {
                    throw new UTFDataFormatException("bad string");
                }
                characters[count++] = (char)(((c & 0x1F) << 6) | (c2 & 0x3F));
                break;
            case 14:
                pos += 3;
                if (pos > length) {
                    throw new UTFDataFormatException("bad string");
                }
                c2 = (int)buf[pos - 2];
                c3 = (int)buf[pos - 1];
                if (((c2 & 0xC0) != 0x80) || ((c3 & 0xC0) != 0x80)) {
                    throw new UTFDataFormatException("bad string");
                }
                characters[count++] = (char)(((c & 0x0F) << 12) | ((c2 & 0x3F) << 6) | ((c3 & 0x3F) << 0));
                break;
            default:
                throw new UTFDataFormatException("bad string");
            }
        }
        return new String(characters, 0, count);
    }
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                l += 2;
            } else {
                l += 3;
            }
            if (l > 65535) {
                throw new UTFDataFormatException("String is too long for writeUTF");
            }
        }
        return l;
    }
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            final int a = byteBuf[i++] & 0xff;
            if (a < 0x80) {
                // low bit clear
                chars[charIdx ++] = (char) a;
            } else if (a < 0xc0) {
                throw new UTFDataFormatException(INVALID_BYTE);
            } else if (a < 0xe0) {
                if (i == cnt) {
                    cnt = input.read(byteBuf, 0, Math.min(UTF_BUFS_BYTE_CNT, len - charIdx));
                    if (cnt < 0) {
                        throw new EOFException();
                    }
                    i = 0;
                }
                final int b = byteBuf[i ++] & 0xff;
                if ((b & 0xc0) != 0x80) {
                    throw new UTFDataFormatException(INVALID_BYTE);
                }
                chars[charIdx ++] = (char) ((a & 0x1f) << 6 | b & 0x3f);
            } else if (a < 0xf0) {
                if (i == cnt) {
                    cnt = input.read(byteBuf, 0, Math.min(UTF_BUFS_BYTE_CNT, len - charIdx));
                    if (cnt < 0) {
                        throw new EOFException();
                    }
                    i = 0;
                }
                final int b = byteBuf[i ++] & 0xff;
                if ((b & 0xc0) != 0x80) {
                    throw new UTFDataFormatException(INVALID_BYTE);
                }
                if (i == cnt) {
                    cnt = input.read(byteBuf, 0, Math.min(UTF_BUFS_BYTE_CNT, len - charIdx));
                    if (cnt < 0) {
                        throw new EOFException();
                    }
                    i = 0;
                }
                final int c = byteBuf[i ++] & 0xff;
                if ((c & 0xc0) != 0x80) {
                    throw new UTFDataFormatException(INVALID_BYTE);
                }
                chars[charIdx ++] = (char) ((a & 0x0f) << 12 | (b & 0x3f) << 6 | c & 0x3f);
            } else {
                throw new UTFDataFormatException(INVALID_BYTE);
            }
        }
        return String.valueOf(chars);
    }
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