source: trunk/gli/src/org/greenstone/gatherer/metadata/MetadataTools.java@ 8023

package org.greenstone.gatherer.metadata;


/** This class is a static class containing useful metadata functions */
public class MetadataTools
{
    static final public String NAMESPACE_SEPARATOR = ".";


    static public String getMetadataElementName(String metadata_element_name_full)
    {
    // Full element name contains namespace
    if (metadata_element_name_full.indexOf(NAMESPACE_SEPARATOR) != -1) {
        return metadata_element_name_full.substring(metadata_element_name_full.indexOf(NAMESPACE_SEPARATOR) + 1);
    }

    // No namespace
    return metadata_element_name_full;      
    }


    static public String getMetadataElementAttribute(MetadataElement metadata_element, String attribute_name, String language_code, String fallback_language_code)
    {
    String metadata_element_attribute = metadata_element.getAttribute(attribute_name, language_code);

    // If the attribute isn't defined in the desired language, resort to the fallback
    if (metadata_element_attribute == null && !language_code.equals(fallback_language_code)) {
        metadata_element_attribute = metadata_element.getAttribute(attribute_name, fallback_language_code);
    }

    return metadata_element_attribute;
    }


    static public String getMetadataSetNamespace(String metadata_element_name_full)
    {
    // Full element name contains namespace
    if (metadata_element_name_full.indexOf(NAMESPACE_SEPARATOR) != -1) {
        return metadata_element_name_full.substring(0, metadata_element_name_full.indexOf(NAMESPACE_SEPARATOR));
    }

    // No namespace
    return "";
    }
}