Method updateAttributes

java/org/apache/tomcat/util/digester/Digester.java:2121–2140

Returns an attributes list which contains all the attributes passed in, with any text of form "${xxx}" in an attribute value replaced by the appropriate value from the system property.

(Attributes list)

     * attribute value replaced by the appropriate value from the system property.
     */
    private Attributes updateAttributes(Attributes list) {

        if (list.getLength() == 0) {
            return list;
        }

        AttributesImpl newAttrs = new AttributesImpl(list);
        int nAttributes = newAttrs.getLength();
        for (int i = 0; i < nAttributes; ++i) {
            String value = newAttrs.getValue(i);
            try {
                newAttrs.setValue(i,
                        IntrospectionUtils.replaceProperties(value, null, source, getClassLoader()).intern());
            } catch (Exception e) {
                log.warn(sm.getString("digester.failedToUpdateAttributes", newAttrs.getLocalName(i), value), e);
            }
        }

        return newAttrs;
    }


    /**