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naming updates, close resources, NPE fix

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This commit is contained in:
Greg DiCristofaro 2020-11-30 14:48:49 -05:00
parent 95b9e51362
commit 7736629de1
2 changed files with 21 additions and 18 deletions
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37
Core/src/org/sleuthkit/autopsy/coreutils/DomainCategorizer.java → Core/src/org/sleuthkit/autopsy/coreutils/DomainTokenizer.java
View File

@ -32,7 +32,7 @@ import org.apache.commons.lang3.StringUtils;
* Attempts to get the domain from a url/domain provided removing the
* subdomain(s).
*/
class DomainCategorizer {
class DomainTokenizer {
/**
* This is a node in the trie. Children in the hashmap are identified by
@ -65,7 +65,7 @@ class DomainCategorizer {
private static final String COMMENT_TOKEN = "//";
// singleton instance of this class.
private static DomainCategorizer categorizer = null;
private static DomainTokenizer categorizer = null;
/**
* Returns the singleton instance of this class.
@ -73,7 +73,7 @@ class DomainCategorizer {
* @return The DomainCategorizer instance.
* @throws IOException
*/
static DomainCategorizer getInstance() throws IOException {
static DomainTokenizer getInstance() throws IOException {
if (categorizer == null) {
categorizer = load();
}
@ -87,22 +87,25 @@ class DomainCategorizer {
* @return The DomainCategorizer instance.
* @throws IOException If there is an error reading the file.
*/
private static DomainCategorizer load() throws IOException {
InputStream is = DomainCategorizer.class.getResourceAsStream(DOMAIN_LIST);
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
DomainCategorizer categorizer = new DomainCategorizer();
while (reader.ready()) {
String line = reader.readLine();
String trimmed = line.trim();
if (!StringUtils.isBlank(trimmed) && !trimmed.startsWith(COMMENT_TOKEN)) {
categorizer.addDomainSuffix(trimmed);
}
}
private static DomainTokenizer load() throws IOException {
try (InputStream is = DomainTokenizer.class.getResourceAsStream(DOMAIN_LIST);
InputStreamReader isReader = new InputStreamReader(is);
BufferedReader reader = new BufferedReader(isReader)) {
return categorizer;
DomainTokenizer categorizer = new DomainTokenizer();
while (reader.ready()) {
String line = reader.readLine();
String trimmed = line.trim();
if (!StringUtils.isBlank(trimmed) && !trimmed.startsWith(COMMENT_TOKEN)) {
categorizer.addDomainSuffix(trimmed);
}
}
return categorizer;
}
}
private DomainCategorizer() {
private DomainTokenizer() {
}
// The top-level trie node.
@ -144,7 +147,7 @@ class DomainCategorizer {
*/
String getDomain(String domain) {
if (StringUtils.isBlank(domain)) {
return null;
return "";
}
List<String> tokens = Stream.of(domain.split(DELIMITER))

2
Core/src/org/sleuthkit/autopsy/coreutils/NetworkUtils.java
View File

@ -75,7 +75,7 @@ public class NetworkUtils {
String base = host;
try {
base = DomainCategorizer.getInstance().getDomain(host);
base = DomainTokenizer.getInstance().getDomain(host);
} catch (IOException ex) {
logger.log(Level.WARNING, "Unable to load resources for domain categorization.", ex);
}