sascha@10: package de.intevation.artifactdatabase;
sascha@10: 
tim@75: import org.apache.log4j.Logger;
sascha@10: import org.w3c.dom.Document;
sascha@10: import org.w3c.dom.Node;
sascha@10: 
sascha@10: import de.intevation.artifacts.Artifact;
tim@75: import de.intevation.artifacts.ArtifactFactory;
sascha@41: import de.intevation.artifacts.ArtifactSerializer;
sascha@10: 
sascha@17: /**
sascha@17:  * @author Sascha L. Teichmann (sascha.teichmann@intevation.de)
sascha@17:  */
sascha@10: public class DefaultArtifactFactory
sascha@10: implements   ArtifactFactory
sascha@10: {
sascha@17:     private static Logger logger =
sascha@17:         Logger.getLogger(DefaultArtifactFactory.class);
sascha@17: 
sascha@10:     public static final String XPATH_TTL         = "@ttl";
sascha@10:     public static final String XPATH_NAME        = "@name";
sascha@10:     public static final String XPATH_DESCRIPTION = "@description";
sascha@10:     public static final String XPATH_ARTIFACT    = "@artifact";
sascha@10: 
sascha@10:     public static final String DEFAULT_DESCRIPTION =
sascha@10:         "No description available";
sascha@10: 
sascha@10:     public static final String DEFAULT_ARTIFACT =
sascha@10:         "de.intevation.artifactdatabase.DefaultArtifact";
sascha@10: 
sascha@10:     protected Long   ttl;
sascha@10: 
sascha@10:     protected String name;
sascha@10: 
sascha@10:     protected String description;
sascha@10: 
sascha@10:     protected Class  artifactClass;
sascha@10: 
sascha@10:     public DefaultArtifactFactory() {
sascha@10:     }
sascha@10: 
sascha@10:     public String getName() {
sascha@10:         return name;
sascha@10:     }
sascha@10: 
sascha@10:     public String getDescription() {
sascha@10:         return description;
sascha@10:     }
sascha@10: 
tim@75:     public Artifact createArtifact(String identifier, 
tim@75:                                    Object context, 
tim@75:                                    Document data) {
sascha@10: 
sascha@10:         try {
sascha@10:             Artifact artifact =
sascha@10:                 (Artifact)artifactClass.newInstance();
sascha@10: 
tim@75:             artifact.setup(identifier, this, context, data);
sascha@10: 
sascha@10:             return artifact;
sascha@10:         }
sascha@10:         catch (InstantiationException ie) {
sascha@17:             logger.error(ie.getLocalizedMessage(), ie);
sascha@10:         }
sascha@10:         catch (IllegalAccessException iae) {
sascha@17:             logger.error(iae.getLocalizedMessage(), iae);
sascha@10:         }
sascha@10:         catch (ClassCastException cce) {
sascha@17:             logger.error(cce.getLocalizedMessage(), cce);
sascha@10:         }
sascha@10: 
sascha@10:         return null;
sascha@10:     }
sascha@10: 
sascha@10:     public void setup(Document document, Node factoryNode) {
sascha@10: 
sascha@10:         String ttlString = Config.getStringXPath(factoryNode, XPATH_TTL);
sascha@10:         if (ttlString != null) {
sascha@10:             try {
sascha@10:                 ttl = Long.valueOf(ttlString);
sascha@10:             }
sascha@10:             catch (NumberFormatException nfe) {
sascha@17:                 logger.warn("'" + ttlString + "' is not an integer.");
sascha@10:             }
sascha@10:         }
sascha@10: 
sascha@10:         description = Config.getStringXPath(
sascha@10:             factoryNode, XPATH_DESCRIPTION, DEFAULT_DESCRIPTION);
sascha@10: 
sascha@10:         name = Config.getStringXPath(
sascha@10:             factoryNode, XPATH_NAME, toString());
sascha@10: 
sascha@10:         String artifact = Config.getStringXPath(
sascha@10:             factoryNode, XPATH_ARTIFACT, DEFAULT_ARTIFACT);
sascha@10: 
sascha@10:         try {
sascha@10:             artifactClass = Class.forName(artifact);
sascha@10:         }
sascha@10:         catch (ClassNotFoundException cnfe) {
sascha@17:             logger.error(cnfe.getLocalizedMessage(), cnfe);
sascha@10:         }
sascha@10: 
sascha@10:         if (artifactClass == null) {
sascha@10:             artifactClass = DefaultArtifact.class;
sascha@10:         }
sascha@10:     }
sascha@10: 
sascha@10:     public Long timeToLiveUntouched(Artifact artifact, Object context) {
sascha@10:         return ttl;
sascha@10:     }
sascha@41: 
sascha@41:     public ArtifactSerializer getSerializer() {
sascha@41:         return DefaultArtifactSerializer.INSTANCE;
sascha@41:     }
sascha@10: }
sascha@10: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8: