private Resource expandRefId()

in src/main/org/apache/ant/antunit/ResourceExists.java [88:108]

• 21 lines of code
• 5 McCabe index (conditional complexity)

    private Resource expandRefId() {
        if (getProject() == null) {
            throw new BuildException("Cannot retrieve refid; project unset");
        }
        Object o = getProject().getReference(refid);
        if (!(o instanceof Resource)) {
            if (o instanceof ResourceCollection) {
                ResourceCollection rc = (ResourceCollection) o;
                if (rc.size() == 1) {
                    o = rc.iterator().next();
                } else {
                    throw new BuildException("Referred resource collection must"
                                             + " contain exactly one resource.");
                }
            } else {
                throw new BuildException("'" + refid + "' is not a resource but "
                                         + String.valueOf(o));
            }
        }
        return (Resource) o;
    }