/**
* Merge the contents of the given manifest into this manifest
*
* @param other the Manifest to be merged with this one.
* @param overwriteMain whether to overwrite the main section of the current manifest
* @throws ManifestException if there is a problem merging the manifest according to the Manifest
* spec.
*/
public void merge(Manifest other, boolean overwriteMain) throws ManifestException {
if (other != null) {
if (overwriteMain) {
mainSection = (Section) other.mainSection.clone();
} else {
mainSection.merge(other.mainSection);
}
if (other.manifestVersion != null) {
manifestVersion = other.manifestVersion;
}
Enumeration e = other.getSectionNames();
while (e.hasMoreElements()) {
String sectionName = (String) e.nextElement();
Section ourSection = (Section) sections.get(sectionName);
Section otherSection = (Section) other.sections.get(sectionName);
if (ourSection == null) {
if (otherSection != null) {
addConfiguredSection((Section) otherSection.clone());
}
} else {
ourSection.merge(otherSection);
}
}
}
}
/**
* Read a manifest file from the given reader
*
* @param r is the reader from which the Manifest is read
* @throws ManifestException if the manifest is not valid according to the JAR spec
* @throws IOException if the manifest cannot be read from the reader.
*/
public Manifest(Reader r) throws ManifestException, IOException {
BufferedReader reader = new BufferedReader(r);
// This should be the manifest version
String nextSectionName = mainSection.read(reader);
String readManifestVersion = mainSection.getAttributeValue(ATTRIBUTE_MANIFEST_VERSION);
if (readManifestVersion != null) {
manifestVersion = readManifestVersion;
mainSection.removeAttribute(ATTRIBUTE_MANIFEST_VERSION);
}
String line = null;
while ((line = reader.readLine()) != null) {
if (line.length() == 0) {
continue;
}
Section section = new Section();
if (nextSectionName == null) {
Attribute sectionName = new Attribute(line);
if (!sectionName.getName().equalsIgnoreCase(ATTRIBUTE_NAME)) {
throw new ManifestException(
"Manifest sections should "
+ "start with a \""
+ ATTRIBUTE_NAME
+ "\" attribute and not \""
+ sectionName.getName()
+ "\"");
}
nextSectionName = sectionName.getValue();
} else {
// we have already started reading this section
// this line is the first attribute. set it and then
// let the normal read handle the rest
Attribute firstAttribute = new Attribute(line);
section.addAttributeAndCheck(firstAttribute);
}
section.setName(nextSectionName);
nextSectionName = section.read(reader);
addConfiguredSection(section);
}
}
