/**
* Removes unparseable extra field data.
*
* @since 1.1
*/
public void removeUnparseableExtraFieldData() {
if (unparseableExtra == null) {
throw new java.util.NoSuchElementException();
}
unparseableExtra = null;
setExtra();
}
/**
* If there are no extra fields, use the given fields as new extra data - otherwise merge the
* fields assuming the existing fields and the new fields stem from different locations inside the
* archive.
*
* @param f the extra fields to merge
* @param local whether the new fields originate from local data
*/
private void mergeExtraFields(ZipExtraField[] f, boolean local) throws ZipException {
if (extraFields == null) {
setExtraFields(f);
} else {
for (ZipExtraField element : f) {
ZipExtraField existing;
if (element instanceof UnparseableExtraFieldData) {
existing = unparseableExtra;
} else {
existing = getExtraField(element.getHeaderId());
}
if (existing == null) {
addExtraField(element);
} else {
if (local) {
byte[] b = element.getLocalFileDataData();
existing.parseFromLocalFileData(b, 0, b.length);
} else {
byte[] b = element.getCentralDirectoryData();
existing.parseFromCentralDirectoryData(b, 0, b.length);
}
}
}
setExtra();
}
}
/**
* Replaces all currently attached extra fields with the new array.
*
* @param fields an array of extra fields
*/
public void setExtraFields(ZipExtraField[] fields) {
List<ZipExtraField> newFields = new ArrayList<ZipExtraField>();
for (ZipExtraField field : fields) {
if (field instanceof UnparseableExtraFieldData) {
unparseableExtra = (UnparseableExtraFieldData) field;
} else {
newFields.add(field);
}
}
extraFields = newFields.toArray(new ZipExtraField[newFields.size()]);
setExtra();
}
/**
* Creates a new zip entry with fields taken from the specified zip entry.
*
* <p>Assumes the entry represents a directory if and only if the name ends with a forward slash
* "/".
*
* @param entry the entry to get fields from
* @throws ZipException on error
*/
public ZipArchiveEntry(java.util.zip.ZipEntry entry) throws ZipException {
super(entry);
setName(entry.getName());
byte[] extra = entry.getExtra();
if (extra != null) {
setExtraFields(
ExtraFieldUtils.parse(extra, true, ExtraFieldUtils.UnparseableExtraField.READ));
} else {
// initializes extra data to an empty byte array
setExtra();
}
setMethod(entry.getMethod());
this.size = entry.getSize();
}
/**
* If the entry needs Zip64 extra information inside the central directory then configure its
* data.
*/
private void handleZip64Extra(ZipArchiveEntry ze, long lfhOffset, boolean needsZip64Extra) {
if (needsZip64Extra) {
Zip64ExtendedInformationExtraField z64 = getZip64Extra(ze);
if (ze.getCompressedSize() >= ZIP64_MAGIC || ze.getSize() >= ZIP64_MAGIC) {
z64.setCompressedSize(new ZipEightByteInteger(ze.getCompressedSize()));
z64.setSize(new ZipEightByteInteger(ze.getSize()));
} else {
// reset value that may have been set for LFH
z64.setCompressedSize(null);
z64.setSize(null);
}
if (lfhOffset >= ZIP64_MAGIC) {
z64.setRelativeHeaderOffset(new ZipEightByteInteger(lfhOffset));
}
ze.setExtra();
}
}
/**
* Remove an extra field.
*
* @param type the type of extra field to remove
*/
public void removeExtraField(ZipShort type) {
if (extraFields == null) {
throw new java.util.NoSuchElementException();
}
List<ZipExtraField> newResult = new ArrayList<ZipExtraField>();
for (ZipExtraField extraField : extraFields) {
if (!type.equals(extraField.getHeaderId())) {
newResult.add(extraField);
}
}
if (extraFields.length == newResult.size()) {
throw new java.util.NoSuchElementException();
}
extraFields = newResult.toArray(new ZipExtraField[newResult.size()]);
setExtra();
}
/**
* Adds an extra field - replacing an already present extra field of the same type.
*
* <p>The new extra field will be the first one.
*
* @param ze an extra field
*/
public void addAsFirstExtraField(ZipExtraField ze) {
if (ze instanceof UnparseableExtraFieldData) {
unparseableExtra = (UnparseableExtraFieldData) ze;
} else {
if (getExtraField(ze.getHeaderId()) != null) {
removeExtraField(ze.getHeaderId());
}
ZipExtraField[] copy = extraFields;
int newLen = extraFields != null ? extraFields.length + 1 : 1;
extraFields = new ZipExtraField[newLen];
extraFields[0] = ze;
if (copy != null) {
System.arraycopy(copy, 0, extraFields, 1, extraFields.length - 1);
}
}
setExtra();
}
/**
* Adds an extra field - replacing an already present extra field of the same type.
*
* <p>If no extra field of the same type exists, the field will be added as last field.
*
* @param ze an extra field
*/
public void addExtraField(ZipExtraField ze) {
if (ze instanceof UnparseableExtraFieldData) {
unparseableExtra = (UnparseableExtraFieldData) ze;
} else {
if (extraFields == null) {
extraFields = new ZipExtraField[] {ze};
} else {
if (getExtraField(ze.getHeaderId()) != null) {
removeExtraField(ze.getHeaderId());
}
final ZipExtraField[] zipExtraFields = copyOf(extraFields, extraFields.length + 1);
zipExtraFields[zipExtraFields.length - 1] = ze;
extraFields = zipExtraFields;
}
}
setExtra();
}
