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Small bug fix for boolean properties that are "true".

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git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@352783 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Rainer Klute 2002-07-18 15:51:39 +00:00
parent eab670b07b
commit 495abc1b7d
1 changed files with 74 additions and 83 deletions
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127
src/java/org/apache/poi/hpsf/Property.java
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@ -66,46 +66,45 @@ import java.util.*;
import org.apache.poi.util.LittleEndian;
/**
* <p>
* <p>A property in a {@link Section} of a {@link PropertySet}.</p>
*
* A property in a {@link Section} of a {@link PropertySet}.</p> <p>
* <p>The property's <strong>ID</strong> gives the property a meaning
* in the context of its {@link Section}. Each {@link Section} spans
* its own name space of property IDs.</p>
*
* The property's <strong>ID</strong> gives the property a meaning in the
* context of its {@link Section}. Each {@link Section} spans its own name
* space of property IDs.</p> <p>
* <p>The property's <strong>type</strong> determines how its
* <strong>value </strong> is interpreted. For example, if the type is
* {@link Variant#VT_LPSTR} (byte string), the value consists of a
* {@link DWord} telling how many bytes the string contains. The bytes
* follow immediately, including any null bytes that terminate the
* string. The type {@link Variant#VT_I4} denotes a four-byte integer
* value, {@link Variant#VT_FILETIME} some date and time (of a
* file).</p>
*
* The property's <strong>type</strong> determines how its <strong>value
* </strong> is interpreted. For example, if the type is {@link
* Variant#VT_LPSTR} (byte string), the value consists of a {@link DWord}
* telling how many bytes the string contains. The bytes follow immediately,
* including any null bytes that terminate the string. The type {@link
* Variant#VT_I4} denotes a four-byte integer value, {@link
* Variant#VT_FILETIME} some date and time (of a file).</p> <p>
*
* <strong>FIXME:</strong> Reading of other types than those mentioned above
* and the dictionary property is not yet implemented.</p>
* <p><strong>FIXME:</strong> Reading of other types than those
* mentioned above and the dictionary property is not yet
* implemented.</p>
*
* @author Rainer Klute (klute@rainer-klute.de)
* @author Drew Varner (Drew.Varner InAndAround sc.edu)
*@created May 10, 2002
* @see Section
* @see Variant
* @version $Id$
* @since 2002-02-09
*/
public class Property {
public class Property
{
private int id;
/**
* <p>
* <p>Returns the property's ID.</p>
*
* Returns the property's ID.</p>
*
*@return The iD value
* @return The ID value
*/
public int getID() {
public int getID()
{
return id;
}
@ -115,13 +114,12 @@ public class Property {
/**
* <p>
*
* Returns the property's type.</p>
* <p>Returns the property's type.</p>
*
* @return The type value
*/
public long getType() {
public long getType()
{
return type;
}
@ -131,38 +129,38 @@ public class Property {
/**
* <p>
* <p>Returns the property's value.</p>
*
* Returns the property value's.</p>
*
*@return The value value
* @return The property's value
*/
public Object getValue() {
public Object getValue()
{
return value;
}
/**
* <p>
*
* Creates a {@link Property} instance by reading its bytes from the
* property set stream.</p>
* <p>Creates a {@link Property} instance by reading its bytes
* from the property set stream.</p>
*
* @param id The property's ID.
* @param src The bytes the property set stream consists of.
*@param offset The property's type/value pair's offset in the section.
*@param length The property's type/value pair's length in bytes. list.
* @param offset The property's type/value pair's offset in the
* section.
* @param length The property's type/value pair's length in bytes.
*/
public Property(final int id, final byte[] src, final long offset,
int length) {
int length)
{
this.id = id;
/*
* ID 0 is a special case since it specifies a dictionary of
* property IDs and property names.
*/
if (id == 0) {
if (id == 0)
{
value = readDictionary(src, offset, length);
return;
}
@ -237,9 +235,8 @@ public class Property {
length = length - LittleEndian.INT_SIZE;
final byte[] v = new byte[length];
for (int i = 0; i < length; i++) {
for (int i = 0; i < length; i++)
v[i] = src[(int)(o + i)];
}
value = v;
break;
}
@ -252,23 +249,17 @@ public class Property {
*/
final int first = o + LittleEndian.INT_SIZE;
long bool = LittleEndian.getUInt(src, o);
if (bool == -1) {
if (bool != 0)
value = new Boolean(true);
} else if (bool == 0) {
else
value = new Boolean(false);
} else {
throw new IllegalPropertySetDataException
("Illegal property set data: A boolean must be " +
"either -1 (true) or 0 (false).");
}
break;
}
default:
{
final byte[] v = new byte[length];
for (int i = 0; i < length; i++) {
for (int i = 0; i < length; i++)
v[i] = src[(int)(offset + i)];
}
value = v;
break;
}
@ -278,19 +269,18 @@ public class Property {
/**
* <p>
*
* Reads a dictionary.</p>
* <p>Reads a dictionary.</p>
*
* @param src The byte array containing the bytes making out the
* dictionary.
*@param offset At this offset within <var>src</var> the dictionary
* starts.
* @param offset At this offset within <var>src</var> the
* dictionary starts.
* @param length The dictionary contains at most this many bytes.
*@return Description of the Return Value
* @return The dictonary
*/
protected Map readDictionary(final byte[] src, final long offset,
final int length) {
final int length)
{
/*
* FIXME: Check the length!
*/
@ -303,7 +293,8 @@ public class Property {
o += LittleEndian.INT_SIZE;
final Map m = new HashMap((int)nrEntries, (float) 1.0);
for (int i = 0; i < nrEntries; i++) {
for (int i = 0; i < nrEntries; i++)
{
/*
* The key
*/
@ -315,13 +306,13 @@ public class Property {
*/
final long sLength = LittleEndian.getUInt(src, o);
o += LittleEndian.INT_SIZE;
/*
* Strip trailing 0x00 bytes.
*/
long l = sLength;
while (src[(int)(o + l - 1)] == 0x00) {
while (src[(int)(o + l - 1)] == 0x00)
l--;
}
final String s = new String(src, o, (int)l);
o += sLength;
m.put(id, s);
@ -332,16 +323,16 @@ public class Property {
/**
* <p>
* <p>Reads a code page.</p>
*
* Reads a code page.</p>
*
*@param src The byte array containing the bytes making out the code
* page.
*@param offset At this offset within <var>src</var> the code page starts.
*@return Description of the Return Value
* @param src The byte array containing the bytes making out the
* code page.
* @param offset At this offset within <var>src</var> the code
* page starts.
* @return The code page.
*/
protected int readCodePage(final byte[] src, final long offset) {
protected int readCodePage(final byte[] src, final long offset)
{
throw new UnsupportedOperationException("FIXME");
}