Examples with BufferUnderrunException org.apache.poi.util.LittleEndian.BufferUnderrunException used on opensource projects

Example 1 with BufferUnderrunException

use of org.apache.poi.util.LittleEndian.BufferUnderrunException in project poi by apache.

the class TestLittleEndian method testReadShort.

/**
     * test the readShort method
     */
@Test
public void testReadShort() throws IOException {
    short expected_value = 0x0201;
    InputStream stream = new ByteArrayInputStream(_good_array);
    int count = 0;
    while (stream.available() > 0) {
        short value = LittleEndian.readShort(stream);
        assertEquals(value, expected_value);
        count++;
    }
    assertEquals(count, _good_array.length / LittleEndianConsts.SHORT_SIZE);
    stream = new ByteArrayInputStream(_bad_array);
    try {
        LittleEndian.readShort(stream);
        fail("Should have caught BufferUnderrunException");
    } catch (BufferUnderrunException ignored) {
    // as expected
    }
}

Example 2 with BufferUnderrunException

use of org.apache.poi.util.LittleEndian.BufferUnderrunException in project poi by apache.

the class TestLittleEndian method testReadLong.

/**
     * test the readLong method
     */
@Test
public void testReadLong() throws IOException {
    long expected_value = 0x0201020102010201L;
    InputStream stream = new ByteArrayInputStream(_good_array);
    int count = 0;
    while (stream.available() > 0) {
        long value = LittleEndian.readLong(stream);
        assertEquals(value, expected_value);
        count++;
    }
    assertEquals(count, _good_array.length / LittleEndianConsts.LONG_SIZE);
    stream = new ByteArrayInputStream(_bad_array);
    try {
        LittleEndian.readLong(stream);
        fail("Should have caught BufferUnderrunException");
    } catch (BufferUnderrunException ignored) {
    // as expected
    }
}

Example 3 with BufferUnderrunException

use of org.apache.poi.util.LittleEndian.BufferUnderrunException in project poi by apache.

the class PropertiesChunk method readProperties.

protected void readProperties(InputStream value) throws IOException {
    boolean going = true;
    while (going) {
        try {
            // Read in the header
            int typeID = LittleEndian.readUShort(value);
            int id = LittleEndian.readUShort(value);
            long flags = LittleEndian.readUInt(value);
            // Turn the Type and ID into helper objects
            MAPIType type = Types.getById(typeID);
            MAPIProperty prop = MAPIProperty.get(id);
            // Wrap properties we don't know about as custom ones
            if (prop == MAPIProperty.UNKNOWN) {
                prop = MAPIProperty.createCustom(id, type, "Unknown " + id);
            }
            if (type == null) {
                logger.log(POILogger.WARN, "Invalid type found, expected ", prop.usualType, " but got ", typeID, " for property ", prop);
                going = false;
                break;
            }
            // Sanity check the property's type against the value's type
            if (prop.usualType != type) {
                // Is it an allowed substitution?
                if (type == Types.ASCII_STRING && prop.usualType == Types.UNICODE_STRING || type == Types.UNICODE_STRING && prop.usualType == Types.ASCII_STRING) {
                // It's fine to go with the specified instead of the
                // normal
                } else if (prop.usualType == Types.UNKNOWN) {
                    // We don't know what this property normally is, but it
                    // has come
                    // through with a valid type, so use that
                    logger.log(POILogger.INFO, "Property definition for ", prop, " is missing a type definition, found a value with type ", type);
                } else {
                    // Oh dear, something has gone wrong...
                    logger.log(POILogger.WARN, "Type mismatch, expected ", prop.usualType, " but got ", type, " for property ", prop);
                    going = false;
                    break;
                }
            }
            // TODO Detect if it is multi-valued, since if it is
            // then even fixed-length strings store their multiple
            // values in another chunk (much as variable length ones)
            // Work out how long the "data" is
            // This might be the actual data, or just a pointer
            // to another chunk which holds the data itself
            boolean isPointer = false;
            int length = type.getLength();
            if (!type.isFixedLength()) {
                isPointer = true;
                length = 8;
            }
            // Grab the data block
            byte[] data = new byte[length];
            IOUtils.readFully(value, data);
            // Skip over any padding
            if (length < 8) {
                byte[] padding = new byte[8 - length];
                IOUtils.readFully(value, padding);
            }
            // Wrap and store
            PropertyValue propVal = null;
            if (isPointer) {
                // We'll match up the chunk later
                propVal = new ChunkBasedPropertyValue(prop, flags, data);
            } else if (type == Types.NULL) {
                propVal = new NullPropertyValue(prop, flags, data);
            } else if (type == Types.BOOLEAN) {
                propVal = new BooleanPropertyValue(prop, flags, data);
            } else if (type == Types.SHORT) {
                propVal = new ShortPropertyValue(prop, flags, data);
            } else if (type == Types.LONG) {
                propVal = new LongPropertyValue(prop, flags, data);
            } else if (type == Types.LONG_LONG) {
                propVal = new LongLongPropertyValue(prop, flags, data);
            } else if (type == Types.FLOAT) {
                propVal = new FloatPropertyValue(prop, flags, data);
            } else if (type == Types.DOUBLE) {
                propVal = new DoublePropertyValue(prop, flags, data);
            } else if (type == Types.CURRENCY) {
                propVal = new CurrencyPropertyValue(prop, flags, data);
            } else if (type == Types.TIME) {
                propVal = new TimePropertyValue(prop, flags, data);
            } else // TODO Add in the rest of the types
            {
                propVal = new PropertyValue(prop, flags, data);
            }
            if (properties.get(prop) != null) {
                logger.log(POILogger.WARN, "Duplicate values found for " + prop);
            }
            properties.put(prop, propVal);
        } catch (BufferUnderrunException e) {
            // Invalid property, ended short
            going = false;
        }
    }
}

Example 4 with BufferUnderrunException

use of org.apache.poi.util.LittleEndian.BufferUnderrunException in project poi by apache.

the class TestLittleEndian method testReadInt.

/**
     * test the readInt method
     */
@Test
public void testReadInt() throws IOException {
    int expected_value = 0x02010201;
    InputStream stream = new ByteArrayInputStream(_good_array);
    int count = 0;
    while (stream.available() > 0) {
        int value = LittleEndian.readInt(stream);
        assertEquals(value, expected_value);
        count++;
    }
    assertEquals(count, _good_array.length / LittleEndianConsts.INT_SIZE);
    stream = new ByteArrayInputStream(_bad_array);
    try {
        LittleEndian.readInt(stream);
        fail("Should have caught BufferUnderrunException");
    } catch (BufferUnderrunException ignored) {
    // as expected
    }
}