How to use

UsageException

in

de.mhus.lib.errors

public void setType(TYPE_NODE type) {
  if (type == TYPE_NODE.RUNTIME)
    throw new UsageException("can't set type to RUNTIME");
  this.type = type;
}

public static Artifact toArtifact(String def) {
  if (def == null) return null;
  if (def.startsWith("mvn:")) {
    String[] parts = def.substring(4).split("/");
    return new Artifact(parts[0], parts[1], parts[2], parts.length > 3 ? parts[3] : null);
  }
  if (def.startsWith("wrap:")) {
    int p = def.indexOf('$');
    if (p > 0) def = def.substring(0, p);
    String[] parts = def.substring(5).split("/");
    return new Artifact(parts[0], parts[1], parts[2], parts.length > 3 ? parts[3] : null);
  }
  if (def.indexOf('/') > -1) {
    String[] parts = def.split("/");
    return new Artifact(parts[0], parts[1], parts[2], parts.length > 3 ? parts[3] : null);
  }
  if (def.indexOf(':') > -1) {
    String[] parts = def.split(":");
    return new Artifact(parts[0], parts[1], parts[3], parts[2]);
  }
  throw new UsageException("Unknown format");
}    

public void createXml(Element xml) {
  if (!xml.getNodeName().equals("bpmn2:process"))
    throw new UsageException("not a bpmn2:process node");

in = in.substring(3);
int p = in.indexOf(':');
if (p < 0) throw new UsageException("key id not found");
String keyId = in.substring(0, p);
in = in.substring(p+1);

public void load(Element xml) {
  if (!xml.getNodeName().equals("bpmn2:process"))
    throw new UsageException("not a bpmn2:process node");