--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/artifact-database/src/main/java/de/intevation/artifactdatabase/AbstractCallContext.java	Thu Mar 24 16:16:51 2011 +0000
@@ -0,0 +1,108 @@
+/*
+ * Copyright (c) 2010, 2011 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 java.util.HashMap;
+
+import de.intevation.artifacts.ArtifactDatabase;
+import de.intevation.artifacts.CallContext;
+import de.intevation.artifacts.CallMeta;
+
+
+/**
+ * Abstract class that implements some basic methods of a CallContext.
+ *
+ * @author <a href="mailto:sascha.teichmann@intevation.de">Sascha L. Teichmann</a>
+ * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
+ */
+public abstract class AbstractCallContext implements CallContext {
+
+    /**
+     * The ArtifactDatabase instance.
+     */
+    protected ArtifactDatabaseImpl database;
+
+    /**
+     * The action to be performed after the artifacts or collections calls.
+     */
+    protected int action;
+
+    /**
+     * The meta information of the concrete call (preferred languages et. al.)
+     */
+    protected CallMeta callMeta;
+
+    /**
+     * The global context.
+     */
+    protected Object context;
+
+    /**
+     * Map to act like a clipboard when nesting calls like a proxy artifact.
+     */
+    protected HashMap customValues;
+
+
+    /**
+     * The default constructor of this abstract CallContext.
+     *
+     * @param action The action.
+     * @param callMeta The CallMeta object.
+     * @param context The global context.
+     */
+    public AbstractCallContext(
+        ArtifactDatabaseImpl artifactDatabase,
+        int                  action,
+        CallMeta             callMeta,
+        Object               context)
+    {
+        this.database = artifactDatabase;
+        this.action   = action;
+        this.callMeta = callMeta;
+        this.context  = context;
+    }
+
+
+    public abstract void postCall();
+
+    public abstract void afterCall(int action);
+
+    public abstract Long getTimeToLive();
+
+    public abstract void afterBackground(int action);
+
+
+    public Object globalContext() {
+        return context;
+    }
+
+
+    public ArtifactDatabase getDatabase() {
+        return database;
+    }
+
+
+    public CallMeta getMeta() {
+        return callMeta;
+    }
+
+
+    public Object getContextValue(Object key) {
+        return customValues != null
+            ? customValues.get(key)
+            : null;
+    }
+
+    public Object putContextValue(Object key, Object value) {
+        if (customValues == null) {
+            customValues = new HashMap();
+        }
+        return customValues.put(key, value);
+    }
+}
+// vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :