# HG changeset patch
# User Ingo Weinzierl <ingo.weinzierl@intevation.de>
# Date 1269538374 0
# Node ID 72e2dd4feb31c03d2002c997f68162e24bf93929
# Parent  8c4638abd518169c4936e84ce6a2805643c8be6b
Added the time to live of an artifact to the CallContext.

artifacts/trunk@828 c6561f87-3c4e-4783-a992-168aeb5c3f6f

diff -r 8c4638abd518 -r 72e2dd4feb31 ChangeLog
--- a/ChangeLog	Mon Mar 22 15:54:06 2010 +0000
+++ b/ChangeLog	Thu Mar 25 17:32:54 2010 +0000
@@ -1,3 +1,16 @@
+2010-03-25  Ingo Weinzierl <ingo.weinzierl@intevation.de>
+
+	* artifacts/src/main/java/de/intevation/artifacts/CallContext.java: Added a
+	  method 'getTimeToLive()' which retrieves the current artifact's time to 
+	  live. The ttl of an artifact is available where ever a CallContext object
+	  is existing.
+
+	* artifact-database/src/main/java/de/intevation/artifactdatabase/Backend.java:
+	  Added new field ttl of an artifact to an PersistentArtifact.
+
+	* artifact-database/src/main/java/de/intevation/artifactdatabase/ArtifactDatabaseImpl.java:
+	  Implemented 'getTimeToLive()' in CallContextImpl.
+
 2010-03-22  Ingo Weinzierl <ingo.weinzierl@intevation.de>
 
 	* artifact-database/src/main/java/de/intevation/artifactdatabase/App.java:
diff -r 8c4638abd518 -r 72e2dd4feb31 artifact-database/src/main/java/de/intevation/artifactdatabase/ArtifactDatabaseImpl.java
--- a/artifact-database/src/main/java/de/intevation/artifactdatabase/ArtifactDatabaseImpl.java	Mon Mar 22 15:54:06 2010 +0000
+++ b/artifact-database/src/main/java/de/intevation/artifactdatabase/ArtifactDatabaseImpl.java	Thu Mar 25 17:32:54 2010 +0000
@@ -131,6 +131,10 @@
             return callMeta;
         }
 
+        public Long getTimeToLive() {
+            return artifact.getTTL();
+        }
+
         public void postCall() {
             switch (action) {
                 case NOTHING:
@@ -472,6 +476,7 @@
             new Backend.ArtifactLoader() {
                 public Object load(
                     ArtifactFactory factory, 
+                    Long            ttl,
                     byte []         bytes,
                     int             id
                 ) {
diff -r 8c4638abd518 -r 72e2dd4feb31 artifact-database/src/main/java/de/intevation/artifactdatabase/Backend.java
--- a/artifact-database/src/main/java/de/intevation/artifactdatabase/Backend.java	Mon Mar 22 15:54:06 2010 +0000
+++ b/artifact-database/src/main/java/de/intevation/artifactdatabase/Backend.java	Thu Mar 25 17:32:54 2010 +0000
@@ -58,15 +58,18 @@
     {
         private Artifact           artifact;
         private ArtifactSerializer serializer;
+        private Long               ttl;
 
         public PersistentArtifact(
             Artifact           artifact,
             ArtifactSerializer serializer,
+            Long               ttl,
             int                id
         ) {
             super(id);
             this.artifact   = artifact;
             this.serializer = serializer;
+            this.ttl        = ttl;
         }
 
         public Artifact getArtifact() {
@@ -77,6 +80,10 @@
             return serializer;
         }
 
+        public Long getTTL() {
+            return ttl;
+        }
+
         public void store() {
             if (logger.isDebugEnabled()) {
                 logger.debug("storing artifact id = " + getId());
@@ -122,6 +129,7 @@
         return new PersistentArtifact(
             artifact,
             factory.getSerializer(),
+            ttl,
             insertDatabase(artifact, factory, ttl));
     }
 
@@ -135,12 +143,13 @@
         return new PersistentArtifact(
             artifact,
             factory.getSerializer(),
+            ttl,
             storeOrReplaceDatabase(artifact, factory, ttl));
     }
 
     public interface ArtifactLoader {
 
-        Object load(ArtifactFactory factory, byte [] bytes, int id);
+        Object load(ArtifactFactory factory, Long ttl, byte [] bytes, int id);
 
     } // interface ArtifactLoader
 
@@ -152,6 +161,7 @@
 
                 public Object load(
                     ArtifactFactory factory,
+                    Long            ttl,
                     byte []         bytes,
                     int             id
                 ) {
@@ -161,7 +171,7 @@
 
                     return artifact == null
                         ? null
-                        : new PersistentArtifact(artifact, serializer, id);
+                        : new PersistentArtifact(artifact, serializer, ttl, id);
                 }
             });
     }
@@ -188,12 +198,14 @@
                 return null;
             }
 
-            int  id  = load_result.getInt(1);
-            long ttl = load_result.getLong(3);
+            int  id   = load_result.getInt(1);
+            long ttlX = load_result.getLong(3);
 
-            if (!load_result.wasNull()) { // real time to life
+            Long ttl = load_result.wasNull() ? null : Long.valueOf(ttlX);
+
+            if (ttl != null) { // real time to life
                 long last_access = load_result.getTimestamp(2).getTime();
-                if (last_access + ttl < System.currentTimeMillis()) {
+                if (last_access + ttlX < System.currentTimeMillis()) {
                     artifactOutdated(id);
                     return null;
                 }
@@ -216,7 +228,7 @@
 
             byte [] bytes = load_result.getBytes(5);
 
-            return loader.load(factory, bytes, id);
+            return loader.load(factory, ttl, bytes, id);
         }
         catch (SQLException sqle) {
             logger.error(sqle.getLocalizedMessage(), sqle);
diff -r 8c4638abd518 -r 72e2dd4feb31 artifacts/src/main/java/de/intevation/artifacts/CallContext.java
--- a/artifacts/src/main/java/de/intevation/artifacts/CallContext.java	Mon Mar 22 15:54:06 2010 +0000
+++ b/artifacts/src/main/java/de/intevation/artifacts/CallContext.java	Thu Mar 25 17:32:54 2010 +0000
@@ -83,5 +83,11 @@
      * @return The formerly stored value under the given key.
      */
     Object putContextValue(Object key, Object value);
+
+    /**
+     * Returns the time to live of the current artifact.
+     * @return The time to live of the current artifact.
+     */
+    Long getTimeToLive();
 }
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