private ExternalizableMap loadMap(String extMapName, ClassLoader loader)
throws FileNotFoundException {
String first = null;
String next = extMapName;
List<String> urls = new ArrayList<String>();
ExternalizableMap res = null;
while (next != null) {
// convert the plugin class name to an xml file name
String mapFile = next.replace('.', '/') + MAP_SUFFIX;
URL url = loader.getResource(mapFile);
if (url != null && urls.contains(url.toString())) {
throw new PluginException.InvalidDefinition("Plugin inheritance loop: " + next);
}
// load into map
ExternalizableMap oneMap = new ExternalizableMap();
oneMap.loadMapFromResource(mapFile, loader);
urls.add(url.toString());
// apply overrides one plugin at a time in inheritance chain
processOverrides(oneMap);
if (res == null) {
res = oneMap;
} else {
for (Map.Entry ent : oneMap.entrySet()) {
String key = (String) ent.getKey();
Object val = ent.getValue();
if (!res.containsKey(key)) {
res.setMapElement(key, val);
}
}
}
if (oneMap.containsKey(KEY_PLUGIN_PARENT)) {
next = oneMap.getString(KEY_PLUGIN_PARENT);
} else {
next = null;
}
}
loadedFromUrls = urls;
return res;
}
protected void initMimeMap() throws PluginException.InvalidDefinition {
for (Iterator iter = definitionMap.entrySet().iterator(); iter.hasNext(); ) {
Map.Entry ent = (Map.Entry) iter.next();
String key = (String) ent.getKey();
Object val = ent.getValue();
if (key.endsWith(DefinableArchivalUnit.SUFFIX_LINK_EXTRACTOR_FACTORY)) {
String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_LINK_EXTRACTOR_FACTORY);
if (val instanceof String) {
String factName = (String) val;
log.debug(mime + " link extractor: " + factName);
MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
LinkExtractorFactory fact =
(LinkExtractorFactory) newAuxClass(factName, LinkExtractorFactory.class);
mti.setLinkExtractorFactory(fact);
}
} else if (key.endsWith(DefinableArchivalUnit.SUFFIX_CRAWL_FILTER_FACTORY)) {
// XXX This clause must precede the one for SUFFIX_HASH_FILTER_FACTORY
// XXX unless/until that key is changed to not be a terminal substring
// XXX of this one
String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_CRAWL_FILTER_FACTORY);
if (val instanceof String) {
String factName = (String) val;
log.debug(mime + " crawl filter: " + factName);
MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
FilterFactory fact = (FilterFactory) newAuxClass(factName, FilterFactory.class);
mti.setCrawlFilterFactory(fact);
}
} else if (key.endsWith(DefinableArchivalUnit.SUFFIX_HASH_FILTER_FACTORY)) {
String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_HASH_FILTER_FACTORY);
if (val instanceof String) {
String factName = (String) val;
log.debug(mime + " filter: " + factName);
MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
FilterFactory fact = (FilterFactory) newAuxClass(factName, FilterFactory.class);
mti.setHashFilterFactory(fact);
}
} else if (key.endsWith(DefinableArchivalUnit.SUFFIX_FETCH_RATE_LIMIT)) {
String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_FETCH_RATE_LIMIT);
if (val instanceof String) {
String rate = (String) val;
log.debug(mime + " fetch rate: " + rate);
MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
RateLimiter limit = mti.getFetchRateLimiter();
if (limit != null) {
limit.setRate(rate);
} else {
mti.setFetchRateLimiter(new RateLimiter(rate));
}
}
} else if (key.endsWith(DefinableArchivalUnit.SUFFIX_LINK_REWRITER_FACTORY)) {
String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_LINK_REWRITER_FACTORY);
String factName = (String) val;
log.debug(mime + " link rewriter: " + factName);
MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
LinkRewriterFactory fact =
(LinkRewriterFactory) newAuxClass(factName, LinkRewriterFactory.class);
mti.setLinkRewriterFactory(fact);
} else if (key.endsWith(DefinableArchivalUnit.SUFFIX_METADATA_EXTRACTOR_FACTORY_MAP)) {
String mime = stripSuffix(key, DefinableArchivalUnit.SUFFIX_METADATA_EXTRACTOR_FACTORY_MAP);
Map factNameMap = (Map) val;
Map factClassMap = new HashMap();
MimeTypeInfo.Mutable mti = mimeMap.modifyMimeTypeInfo(mime);
for (Iterator it = factNameMap.keySet().iterator(); it.hasNext(); ) {
String mdTypes = (String) it.next();
String factName = (String) factNameMap.get(mdTypes);
log.debug(mime + " (" + mdTypes + ") metadata extractor: " + factName);
for (String mdType : (List<String>) StringUtil.breakAt(mdTypes, ";")) {
setMdTypeFact(factClassMap, mdType, factName);
}
}
mti.setFileMetadataExtractorFactoryMap(factClassMap);
}
}
}