blob: 8830084b7716b722ea436c62751e887f75423b4f [file] [log] [blame]
package aQute.bnd.component;
import org.osgi.service.component.annotations.*;
import aQute.bnd.osgi.*;
import aQute.bnd.version.*;
import aQute.lib.tag.*;
/**
* Holds the information in the reference element.
*/
class ReferenceDef {
Version version = AnnotationReader.V1_1;
String name;
String service;
ReferenceCardinality cardinality;
ReferencePolicy policy;
ReferencePolicyOption policyOption;
String target;
String bind;
String unbind;
String updated;
/**
* Prepare the reference, will check for any errors.
*
* @param analyzer
* the analyzer to report errors to.
* @throws Exception
*/
public void prepare(Analyzer analyzer) throws Exception {
if (name == null)
analyzer.error("No name for a reference");
if ((updated != null && !updated.equals("-")) || policyOption != null)
version = max(version, AnnotationReader.V1_2);
if (target != null) {
String error = Verifier.validateFilter(target);
if (error != null)
analyzer.error("Invalid target filter %s for %s", target, name);
}
if (service == null)
analyzer.error("No interface specified on %s", name);
}
/**
* Calculate the tag.
*
* @return a tag for the reference element.
*/
public Tag getTag() {
Tag ref = new Tag("reference");
ref.addAttribute("name", name);
if (cardinality != null)
ref.addAttribute("cardinality", cardinality.toString());
if (policy != null)
ref.addAttribute("policy", policy.toString());
ref.addAttribute("interface", service);
if (target != null)
ref.addAttribute("target", target);
if (bind != null && !"-".equals(bind))
ref.addAttribute("bind", bind);
if (unbind != null && !"-".equals(unbind))
ref.addAttribute("unbind", unbind);
if (updated != null && !"-".equals(updated))
ref.addAttribute("updated", updated);
if (policyOption != null)
ref.addAttribute("policy-option", policyOption.toString());
return ref;
}
static <T extends Comparable<T>> T max(T a, T b) {
int n = a.compareTo(b);
if (n >= 0)
return a;
return b;
}
public String toString() {
return name;
}
}