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50 package edu.internet2.middleware.shibboleth.aa.attrresolv.provider;
52 import java.util.HashSet;
55 import org.apache.log4j.Logger;
56 import org.w3c.dom.Element;
57 import org.w3c.dom.NodeList;
59 import edu.internet2.middleware.shibboleth.aa.attrresolv.AttributeDefinitionPlugIn;
60 import edu.internet2.middleware.shibboleth.aa.attrresolv.AttributeResolver;
61 import edu.internet2.middleware.shibboleth.aa.attrresolv.ResolutionPlugInException;
64 * Base class for Attribute Definition PlugIns. Provides basic functionality such as
65 * dependency mapping. Subclasses must provide resolution logic.
67 * @author Walter Hoehn (wassa@columbia.edu)
70 public abstract class BaseAttributeDefinition extends BaseResolutionPlugIn implements AttributeDefinitionPlugIn {
72 /** The time, in seconds, for which attribute created from this definition should be valid. */
73 protected long lifeTime = -1;
75 private static Logger log = Logger.getLogger(BaseAttributeDefinition.class.getName());
76 protected Set connectorDependencyIds = new HashSet();
77 protected Set attributeDependencyIds = new HashSet();
79 protected BaseAttributeDefinition(Element e) throws ResolutionPlugInException {
83 String lifeTimeSpec = e.getAttribute("lifeTime");
84 if (lifeTimeSpec != null && !lifeTimeSpec.equals("")) {
86 lifeTime = Long.valueOf(lifeTimeSpec).longValue();
87 log.debug("Explicit lifetime set for attribute (" + getId() + "). Lifetime: (" + lifeTime + ").");
88 } catch (NumberFormatException nfe) {
89 log.error("Bad value for attribute (lifeTime) for Attribute Definition (" + getId() + ").");
93 NodeList connectorNodes = e.getElementsByTagNameNS(AttributeResolver.resolverNamespace, "DataConnectorDependency");
95 for (int i = 0; connectorNodes.getLength() > i; i++) {
96 Element connector = (Element) connectorNodes.item(i);
97 String connectorName = connector.getAttribute("requires");
98 if (connectorName != null && !connectorName.equals("")) {
99 addDataConnectorDependencyId(connectorName);
101 log.error("Data Connector dependency must be accomanied by a \"requires\" attribute.");
102 throw new ResolutionPlugInException("Failed to initialize Attribute PlugIn.");
106 NodeList attributeNodes = e.getElementsByTagNameNS(AttributeResolver.resolverNamespace, "AttributeDependency");
107 for (int i = 0; attributeNodes.getLength() > i; i++) {
108 Element attribute = (Element) attributeNodes.item(i);
109 String attributeName = attribute.getAttribute("requires");
110 if (attributeName != null && !attributeName.equals("")) {
111 addAttributeDefinitionDependencyId(attributeName);
113 log.error("Attribute Definition dependency must be accomanied by a \"requires\" attribute.");
114 throw new ResolutionPlugInException("Failed to initialize Attribute PlugIn.");
118 if (connectorNodes.getLength() == 0 && attributeNodes.getLength() == 0) {
119 log.warn("Attribute " + getId() + " has no registered dependencies.");
124 protected void addDataConnectorDependencyId(String id) {
125 connectorDependencyIds.add(id);
128 protected void addAttributeDefinitionDependencyId(String id) {
129 attributeDependencyIds.add(id);
133 * @see edu.internet2.middleware.shibboleth.aa.attrresolv.AttributeDefinitionPlugIn#getAttributeDependencyIds()
135 public String[] getAttributeDefinitionDependencyIds() {
136 return (String[]) attributeDependencyIds.toArray(new String[0]);
140 * @see edu.internet2.middleware.shibboleth.aa.attrresolv.AttributeDefinitionPlugIn#getConnectorDependencyIds()
142 public String[] getDataConnectorDependencyIds() {
143 return (String[]) connectorDependencyIds.toArray(new String[0]);