/**
* 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 (int i = 0; i < f.length; i++) {
ZipExtraField existing;
if (f[i] instanceof UnparseableExtraFieldData) {
existing = unparseableExtra;
} else {
existing = getExtraField(f[i].getHeaderId());
}
if (existing == null) {
addExtraField(f[i]);
} else {
if (local || !(existing instanceof CentralDirectoryParsingZipExtraField)) {
byte[] b = f[i].getLocalFileDataData();
existing.parseFromLocalFileData(b, 0, b.length);
} else {
byte[] b = f[i].getCentralDirectoryData();
((CentralDirectoryParsingZipExtraField) existing)
.parseFromCentralDirectoryData(b, 0, b.length);
}
}
}
setExtra();
}
}
/**
* Overwrite clone.
*
* @return a cloned copy of this ZipEntry
* @since 1.1
*/
public Object clone() {
ZipEntry e = (ZipEntry) super.clone();
e.setInternalAttributes(getInternalAttributes());
e.setExternalAttributes(getExternalAttributes());
e.setExtraFields(getExtraFields(true));
return e;
}
/**
* Creates a new zip entry with fields taken from the specified zip entry.
*
* @param entry the entry to get fields from
* @since 1.1
* @throws ZipException on error
*/
public ZipEntry(java.util.zip.ZipEntry entry) throws ZipException {
super(entry);
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();
}
}
/**
* Creates a new zip entry with fields taken from the specified zip entry.
*
* @param entry the entry to get fields from
* @throws ZipException on error
* @since 1.1
*/
public ZipEntry(ZipEntry entry) throws ZipException {
this((java.util.zip.ZipEntry) entry);
setInternalAttributes(entry.getInternalAttributes());
setExternalAttributes(entry.getExternalAttributes());
setExtraFields(entry.getExtraFields(true));
}