--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifact-database/src/main/java/org/dive4elements/artifactdatabase/DefaultArtifact.java	Thu Apr 25 10:57:18 2013 +0200
@@ -0,0 +1,142 @@
+/*
+ * Copyright (c) 2010 by Intevation GmbH
+ *
+ * This program is free software under the LGPL (>=v2.1)
+ * Read the file LGPL.txt coming with the software for details
+ * or visit http://www.gnu.org/licenses/ if it does not exist.
+ */
+
+package de.intevation.artifactdatabase;
+
+import de.intevation.artifacts.common.utils.XMLUtils;
+
+import de.intevation.artifacts.Artifact;
+import de.intevation.artifacts.ArtifactFactory;
+import de.intevation.artifacts.CallContext;
+import de.intevation.artifacts.CallMeta;
+
+import java.io.IOException;
+import java.io.OutputStream;
+
+import org.apache.log4j.Logger;
+
+import org.w3c.dom.Document;
+
+/**
+ * Trivial implementation of an artifact. Useful to be subclassed.
+ * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
+ */
+public class DefaultArtifact
+implements   Artifact
+{
+    private static Logger logger = Logger.getLogger(DefaultArtifact.class);
+
+    /**
+     * The identifier of the artifact.
+     */
+    protected String identifier;
+
+
+    /**
+     * Default constructor.
+     */
+    public DefaultArtifact() {
+    }
+
+
+    public void setIdentifier(String identifier) {
+        if (logger.isDebugEnabled()) {
+            logger.debug("Change identifier: "
+                + this.identifier + " -> " + identifier);
+        }
+        this.identifier = identifier;
+    }
+
+    public String identifier() {
+        if (logger.isDebugEnabled()) {
+            logger.debug("DefaultArtifact.identifier: " + identifier);
+        }
+        return this.identifier;
+    }
+
+
+    public String hash() {
+        String hash = String.valueOf(hashCode());
+        if (logger.isDebugEnabled()) {
+            logger.debug("DefaultArtifact.hashCode: "
+                + identifier + " (" + hash + ")");
+        }
+        return hash;
+    }
+
+    public Document describe(Document data, CallContext context) {
+        if (logger.isDebugEnabled()) {
+            logger.debug("DefaultArtifact.describe: " + identifier);
+        }
+        return XMLUtils.newDocument();
+    }
+
+    public Document advance(Document target, CallContext context) {
+        if (logger.isDebugEnabled()) {
+            logger.debug("DefaultArtifact.advance: " + identifier);
+        }
+        return XMLUtils.newDocument();
+    }
+
+    public Document feed(Document target, CallContext context) {
+        if (logger.isDebugEnabled()) {
+            logger.debug("DefaultArtifact.feed: " + identifier);
+        }
+        return XMLUtils.newDocument();
+    }
+
+    public void out(
+        Document     format,
+        OutputStream out,
+        CallContext  context
+    )
+    throws IOException
+    {
+        if (logger.isDebugEnabled()) {
+            logger.debug("DefaultArtifact.out: " + identifier);
+        }
+    }
+
+    public void out(
+        String       type,
+        Document     format,
+        OutputStream out,
+        CallContext  context
+    )
+    throws IOException
+    {
+        if (logger.isDebugEnabled()) {
+            logger.debug("DefaultArtifact.out: " + identifier);
+        }
+    }
+
+    public void setup(String identifier,
+        ArtifactFactory factory,
+        Object          context,
+        CallMeta        callMeta,
+        Document        data)
+    {
+        if (logger.isDebugEnabled()) {
+            logger.debug("DefaultArtifact.setup: " + identifier);
+        }
+        this.identifier = identifier;
+    }
+
+    public void endOfLife(Object context) {
+        if (logger.isDebugEnabled()) {
+            logger.debug("DefaultArtifact.endOfLife: " + identifier);
+        }
+    }
+
+    public void cleanup(Object context) {
+        if (logger.isDebugEnabled()) {
+            logger.debug("DefaultArtifact.cleanup: " + identifier);
+        }
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :