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---
layout: default
class: Header
title: Conditional-Package PACKAGE-SPEC (',' PACKAGE-SPEC) *
summary: Recursively add packages from the class path when referred and when they match one of the package specifications.
---
/**
* Answer extra packages. In this case we implement conditional package. Any
*/
@Override
protected Jar getExtra() throws Exception {
Parameters conditionals = getParameters(CONDITIONAL_PACKAGE);
conditionals.putAll(getParameters(CONDITIONALPACKAGE));
if (conditionals.isEmpty())
return null;
trace("do Conditional Package %s", conditionals);
Instructions instructions = new Instructions(conditionals);
Collection<PackageRef> referred = instructions.select(getReferred().keySet(), false);
referred.removeAll(getContained().keySet());
Jar jar = new Jar("conditional-import");
addClose(jar);
for (PackageRef pref : referred) {
for (Jar cpe : getClasspath()) {
Map<String,Resource> map = cpe.getDirectories().get(pref.getPath());
if (map != null) {
copy(jar, cpe, pref.getPath(), false);
// Now use copy so that bnd.info is processed, next line
// should be
// removed in the future TODO
// jar.addDirectory(map, false);
break;
}
}
}
if (jar.getDirectories().size() == 0) {
trace("extra dirs %s", jar.getDirectories());
return null;
}
return jar;
}
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