Changeset 10971 for trunk/gli

Timestamp:

2005-12-02T15:11:04+13:00 (18 years ago)

Author:

kjdon

Message:

metadata elements can now have predefined values, defined in the metadata set xml file. An element can have attributes predefined (have predefined metadata) and restricted (only allowed these predefined values). If there are predefined values, load them into the value tree, if its restricted, don't allow the user to add any other values

Location:

trunk/gli/src/org/greenstone/gatherer/metadata

Files:

• MetadataElement.java (modified) (4 diffs)
• MetadataValueTableModel.java (modified) (3 diffs)

trunk/gli/src/org/greenstone/gatherer/metadata/MetadataElement.java

@@ -31 +31 @@
 import org.greenstone.gatherer.Configuration;
 import org.greenstone.gatherer.util.XMLTools;
+import org.greenstone.gatherer.util.StaticStrings;
 import org.w3c.dom.*;
 
@@ -41 +42 @@
     private Element metadata_element_element = null;
     private MetadataValueTreeModel metadata_value_tree_model = null;
-
+    /* this is true if the metadata element comes with a pre defined set of values */
+    private boolean predefined_values = false;
+    /* This restricts the user to only the predefined values */
+    private boolean restricted_values = false;
 
     public MetadataElement(String metadata_element_name_full, Element metadata_element_element)
@@ -48 +52 @@
     this.metadata_element_element = metadata_element_element;
     this.metadata_value_tree_model = new MetadataValueTreeModel(this);
-    }
-
-
+    if (metadata_element_element.getAttribute(StaticStrings.PREDEFINED_METADATA_ATTRIBUTE).equals("true")) {
+        predefined_values = true;
+        loadOptionList();
+        if (metadata_element_element.getAttribute(StaticStrings.RESTRICTED_METADATA_ATTRIBUTE).equals("true")) {
+        // cant have restricted values if no predefined values
+        restricted_values = true;
+        }
+    }
+    }
+    
+    // do this better
+    protected boolean loadOptionList() {
+    NodeList values = metadata_element_element.getElementsByTagName("Value");
+    for (int i=0; i<values.getLength(); i++) {
+        String val = XMLTools.getValue(values.item(i));
+        addMetadataValue(val);
+    }
+    return true;
+    }
     public MetadataValueTreeNode addMetadataValue(String metadata_value)
     {
@@ -170 +190 @@
     }
 
+    public boolean isPredefined() {
+    return predefined_values;
+    }
+
+    public boolean isRestricted() {
+    return restricted_values;
+    }
 
     public boolean isSubelement()

trunk/gli/src/org/greenstone/gatherer/metadata/MetadataValueTableModel.java

@@ -220 +220 @@
     Gatherer.g_man.wait(true);
 
+    
+    // Check for a restricted metadata element
+    MetadataElement metadata_element = metadata_value_table_entry.getMetadataElement();
+    if (!new_metadata_value.equals("") && metadata_element.isRestricted()) {
+        if (metadata_element.getMetadataValueTreeNode((String)new_metadata_value)==null) {
+        WarningDialog dialog = new WarningDialog("warning.InvalidMetadata", "InvalidMetadata.Title", Dictionary.get("InvalidMetadata.Message"), null, false);
+        int dialog_result = dialog.display();
+        dialog.dispose();
+        Gatherer.g_man.wait(false);
+        return;
+        
+        }
+    }
+    
     // Metadata value added
-    if (old_metadata_value.equals("") && !new_metadata_value.equals("")) {
-        // If we're adding metadata to folders display the warning
+    if (old_metadata_value.equals("") && !new_metadata_value.equals("")) {    
+        // If we're adding metadata to folders display the warning
         if (!file_nodes[0].isLeaf()) {
         WarningDialog dialog = new WarningDialog("warning.DirectoryLevelMetadata", "DirectoryLevelMetadata.Title", Dictionary.get("DirectoryLevelMetadata.Message"), null, true);
@@ -233 +247 @@
         }
 
-        MetadataElement metadata_element = metadata_value_table_entry.getMetadataElement();
         MetadataValueTreeNode metadata_value_tree_node = metadata_element.addMetadataValue((String) new_metadata_value);
         MetadataValue metadata_value = new MetadataValue(metadata_element, metadata_value_tree_node);
@@ -247 +260 @@
     // Metadata value replaced
     else {
-        MetadataElement metadata_element = metadata_value_table_entry.getMetadataElement();
         MetadataValueTreeNode metadata_value_tree_node = metadata_element.addMetadataValue((String) new_metadata_value);
         MetadataValue metadata_value = new MetadataValue(metadata_element, metadata_value_tree_node);