5075 update comments

Core/src/org/sleuthkit/autopsy/texttranslation/translators/GoogleLanguageWrapper.java

@@ -20,20 +20,35 @@ package org.sleuthkit.autopsy.texttranslation.translators;
 
 import com.google.cloud.translate.Language;
 
+/**
+ * Wrapper for the Language class
+ */
 class GoogleLanguageWrapper {
+
     private final Language language;
-    
-    GoogleLanguageWrapper(Language lang){
+
+    /**
+     * Create a new GoogleLanguageWrapper
+     *
+     * @param lang the Language object to wrap
+     */
+    GoogleLanguageWrapper(Language lang) {
         language = lang;
     }
-    
-    Language getLanguage(){
+
+    /**
+     * Get the wrapped Language object
+     *
+     * @return the wrapped Language
+     */
+    Language getLanguage() {
         return language;
     }
-    
+
     @Override
-    public String toString(){
-      return language.getName();
+    public String toString() {
+        //toString overridden so that the jComboBox in the GoogleTranslatorSettingsPanel will display the name of the language
+        return language.getName();
     }
-        
+
 }

Core/src/org/sleuthkit/autopsy/texttranslation/translators/GoogleTranslator.java

@@ -35,6 +35,10 @@ import org.openide.util.lookup.ServiceProvider;
 import org.sleuthkit.autopsy.texttranslation.TextTranslator;
 import org.sleuthkit.autopsy.texttranslation.TranslationException;
 
+/**
+ * TextTranslator which utilizes Google Cloud Translation to perform translation
+ * in Autopsy
+ */
 @ServiceProvider(service = TextTranslator.class)
 public final class GoogleTranslator implements TextTranslator {
 
@@ -44,6 +48,9 @@ public final class GoogleTranslator implements TextTranslator {
     private final GoogleTranslatorSettings settings = new GoogleTranslatorSettings();
     private Translate translate;
 
+    /**
+     * Constructs a new GoogleTranslator
+     */
     public GoogleTranslator() {
         // Instantiates a client
         settingsPanel = new GoogleTranslatorSettingsPanel(settings.getCredentialPath(), settings.getTargetLanguageCode());
@@ -97,6 +104,10 @@ public final class GoogleTranslator implements TextTranslator {
         return settingsPanel;
     }
 
+    /**
+     * Load the Google Cloud Translation service give the currently saved
+     * settings
+     */
     private void loadTranslator() {
         InputStream credentialStream = null;
         Credentials creds = null;

Core/src/org/sleuthkit/autopsy/texttranslation/translators/GoogleTranslatorSettings.java

@@ -22,6 +22,9 @@ import com.google.cloud.translate.TranslateOptions;
 import org.apache.commons.lang3.StringUtils;
 import org.sleuthkit.autopsy.coreutils.ModuleSettings;
 
+/**
+ * Class to handle the settings associated with the GoogleTranslator
+ */
 public final class GoogleTranslatorSettings {
 
     private static final String DEFAULT_TARGET_LANGUAGE = TranslateOptions.getDefaultInstance().getTargetLanguage();
@@ -32,22 +35,46 @@ public final class GoogleTranslatorSettings {
     private String targetLanguageCode;
     private String credentialPath;
 
+    /**
+     * Construct a new GoogleTranslatorSettingsObject
+     */
     GoogleTranslatorSettings() {
         loadSettings();
     }
 
+    /**
+     * Get the target language code
+     *
+     * @return the code used to identify the target language
+     */
     String getTargetLanguageCode() {
         return targetLanguageCode;
     }
 
+    /**
+     * Get the path to the JSON credentials file
+     *
+     * @return the path to the credentials file
+     */
     String getCredentialPath() {
         return credentialPath;
     }
 
+    /**
+     * Set the path to the JSON credentials file
+     *
+     * @param path the path to the credentials file
+     */
     void setCredentialPath(String path) {
         credentialPath = path;
     }
 
+    /**
+     * Set the target language code. If a blank code is specified it sets the
+     * default code instead.
+     *
+     * @param code the target language code to set
+     */
     void setTargetLanguageCode(String code) {
         if (StringUtils.isBlank(code)) {
             targetLanguageCode = DEFAULT_TARGET_LANGUAGE;
@@ -56,6 +83,9 @@ public final class GoogleTranslatorSettings {
         }
     }
 
+    /**
+     * Load the settings into memory from their on disk storage
+     */
     void loadSettings() {
         if (!ModuleSettings.configExists(GOOGLE_TRANSLATE_NAME)) {
             ModuleSettings.makeConfigFile(GOOGLE_TRANSLATE_NAME);
@@ -72,6 +102,9 @@ public final class GoogleTranslatorSettings {
         }
     }
 
+    /**
+     * Save the setting from memory to their location on disk
+     */
     void saveSettings() {
         ModuleSettings.setConfigSetting(GOOGLE_TRANSLATE_NAME, TARGET_LANGUAGE_CODE_KEY, targetLanguageCode);
         ModuleSettings.setConfigSetting(GOOGLE_TRANSLATE_NAME, CREDENTIAL_PATH_KEY, credentialPath);

Core/src/org/sleuthkit/autopsy/texttranslation/translators/GoogleTranslatorSettingsPanel.java

@@ -37,6 +37,9 @@ import javax.swing.filechooser.FileNameExtensionFilter;
 import org.apache.commons.lang3.StringUtils;
 import org.openide.util.NbBundle.Messages;
 
+/**
+ * Settings panel for the GoogleTranslator
+ */
 public class GoogleTranslatorSettingsPanel extends javax.swing.JPanel {
 
     private static final Logger logger = Logger.getLogger(GoogleTranslatorSettingsPanel.class.getName());
@@ -58,19 +61,19 @@ public class GoogleTranslatorSettingsPanel extends javax.swing.JPanel {
     /**
      * Private method to make a temporary translation service given the current
      * settings and use it to retrieve the available target languages for
-     * population of combobox with target language with unsaved settings
+     * population of combobox with target language with unsaved settings.
      *
      * @return A list of Languages
      */
     @Messages({"GoogleTranslatorSettingsPanel.errorMessage.fileNotFound=Credentials file not found, please set the location to be a valid JSON credentials file.",
-    "GoogleTranslatorSettingsPanel.errorMessage.unableToReadCredentials=Unable to read credentials from credentials file, please set the location to be a valid JSON credentials file.",
-    "GoogleTranslatorSettingsPanel.errorMessage.unableToMakeCredentials=Unable to construct credentials object from credentials file, please set the location to be a valid JSON credentials file.",
-    "GoogleTranslatorSettingsPanel.errorMessage.unknownFailureGetting=Failure getting list of supported languages with current credentials file.",})
-    
+        "GoogleTranslatorSettingsPanel.errorMessage.unableToReadCredentials=Unable to read credentials from credentials file, please set the location to be a valid JSON credentials file.",
+        "GoogleTranslatorSettingsPanel.errorMessage.unableToMakeCredentials=Unable to construct credentials object from credentials file, please set the location to be a valid JSON credentials file.",
+        "GoogleTranslatorSettingsPanel.errorMessage.unknownFailureGetting=Failure getting list of supported languages with current credentials file.",})
     private List<Language> getListOfTargetLanguages() {
+        //This method also has the side effect of more or less validating the JSON file which was selected as it is necessary to get the list of target languages
         try {
-            InputStream credentialStream = null;
-            Credentials creds = null;
+            InputStream credentialStream;
+            Credentials creds;
             try {
                 credentialStream = new FileInputStream(credentialsPathField.getText());
             } catch (FileNotFoundException ignored) {
@@ -90,7 +93,7 @@ public class GoogleTranslatorSettingsPanel extends javax.swing.JPanel {
             } else {
                 TranslateOptions.Builder builder = TranslateOptions.newBuilder();
                 builder.setCredentials(creds);
-                builder.setTargetLanguage(targetLanguageCode);
+                builder.setTargetLanguage(targetLanguageCode); //localize the list to the currently selected target language
                 warningLabel.setText("");  //clear any previous warning text
                 return builder.build().getService().listSupportedLanguages();
             }
@@ -102,10 +105,10 @@ public class GoogleTranslatorSettingsPanel extends javax.swing.JPanel {
     }
 
     /**
-     * Populate the target th
+     * Populate the target language selection combo box
      */
     @Messages({"GoogleTranslatorSettingsPanel.errorMessage.noFileSelected=A JSON file must be selected to provide your credentials for Google Translate.",
-    "GoogleTranslatorSettingsPanel.errorMessage.unknownFailurePopulating=Failure populating list of supported languages with current credentials file."})
+        "GoogleTranslatorSettingsPanel.errorMessage.unknownFailurePopulating=Failure populating list of supported languages with current credentials file."})
     private void populateTargetLanguageComboBox() {
         targetLanguageComboBox.removeItemListener(listener);
         try {
@@ -254,14 +257,28 @@ public class GoogleTranslatorSettingsPanel extends javax.swing.JPanel {
     private javax.swing.JLabel warningLabel;
     // End of variables declaration//GEN-END:variables
 
+    /**
+     * Get the currently selected target language code
+     *
+     * @return the target language code of the language selected in the combobox
+     */
     String getTargetLanguageCode() {
         return targetLanguageCode;
     }
 
+    /**
+     * Get the currently set path to the JSON credentials file
+     *
+     * @return the path to the credentials file specified in the textarea
+     */
     String getCredentialsPath() {
         return credentialsPathField.getText();
     }
 
+    /**
+     * Listener to identfy when a combo box item has been selected and update
+     * the combo box to reflect that
+     */
     private class ComboBoxSelectionListener implements ItemListener {
 
         @Override