From 7c5aec1e34616d89726252f36c9650084c871ab9 Mon Sep 17 00:00:00 2001
From: Anna Koskinen <anna@vaadin.com>
Date: Tue, 29 Jan 2013 16:35:27 +0200
Subject: Merge of (#10312) to Vaadin 7.

Cache update exception handling to Table.

Change-Id: I882e78c3a2eb1ceaab484be748b6890ee321c290
---
 server/src/com/vaadin/ui/Table.java | 102 +++++++++++++++++++++++++++++++++---
 1 file changed, 95 insertions(+), 7 deletions(-)

(limited to 'server/src/com/vaadin')

diff --git a/server/src/com/vaadin/ui/Table.java b/server/src/com/vaadin/ui/Table.java
index e73c6d7188..10752140db 100644
--- a/server/src/com/vaadin/ui/Table.java
+++ b/server/src/com/vaadin/ui/Table.java
@@ -557,6 +557,8 @@ public class Table extends AbstractSelect implements Action.Container,
      */
     private boolean keyMapperReset;
 
+    private List<Throwable> exceptionsDuringCachePopulation = new ArrayList<Throwable>();
+
     /* Table constructors */
 
     /**
@@ -1646,6 +1648,55 @@ public class Table extends AbstractSelect implements Action.Container,
 
         setRowCacheInvalidated(true);
         markAsDirty();
+        maybeThrowCacheUpdateExceptions();
+
+    }
+
+    private void maybeThrowCacheUpdateExceptions() {
+        if (!exceptionsDuringCachePopulation.isEmpty()) {
+            Throwable[] causes = new Throwable[exceptionsDuringCachePopulation
+                    .size()];
+            exceptionsDuringCachePopulation.toArray(causes);
+
+            exceptionsDuringCachePopulation.clear();
+            throw new CacheUpdateException(this,
+                    "Error during Table cache update", causes);
+        }
+
+    }
+
+    /**
+     * Exception thrown when one or more exceptions occurred during updating of
+     * the Table cache.
+     * <p>
+     * Contains all exceptions which occurred during the cache update.
+     * </p>
+     * 
+     */
+    public static class CacheUpdateException extends RuntimeException {
+        private Throwable[] causes;
+        private Table table;
+
+        public CacheUpdateException(Table table, String message,
+                Throwable[] causes) {
+            super(message);
+            this.table = table;
+            this.causes = causes;
+        }
+
+        /**
+         * Returns the cause(s) for this exception
+         * 
+         * @return the exception(s) which caused this exception
+         */
+        public Throwable[] getCauses() {
+            return causes;
+        }
+
+        public Table getTable() {
+            return table;
+        }
+
     }
 
     /**
@@ -2036,9 +2087,19 @@ public class Table extends AbstractSelect implements Action.Container,
                 cells[CELL_HEADER][i] = String.valueOf(i + firstIndex + 1);
                 break;
             default:
-                cells[CELL_HEADER][i] = getItemCaption(id);
+                try {
+                    cells[CELL_HEADER][i] = getItemCaption(id);
+                } catch (Exception e) {
+                    exceptionsDuringCachePopulation.add(e);
+                    cells[CELL_HEADER][i] = "";
+                }
+            }
+            try {
+                cells[CELL_ICON][i] = getItemIcon(id);
+            } catch (Exception e) {
+                exceptionsDuringCachePopulation.add(e);
+                cells[CELL_ICON][i] = null;
             }
-            cells[CELL_ICON][i] = getItemIcon(id);
         }
 
         GeneratedRow generatedRow = rowGenerator != null ? rowGenerator
@@ -2056,7 +2117,12 @@ public class Table extends AbstractSelect implements Action.Container,
             boolean isGenerated = isGeneratedRow || isGeneratedColumn;
 
             if (!isGenerated) {
-                p = getContainerProperty(id, colids[j]);
+                try {
+                    p = getContainerProperty(id, colids[j]);
+                } catch (Exception e) {
+                    exceptionsDuringCachePopulation.add(e);
+                    value = null;
+                }
             }
 
             if (isGeneratedRow) {
@@ -2089,7 +2155,12 @@ public class Table extends AbstractSelect implements Action.Container,
                         if (isGeneratedColumn) {
                             ColumnGenerator cg = columnGenerators
                                     .get(colids[j]);
-                            value = cg.generateCell(this, id, colids[j]);
+                            try {
+                                value = cg.generateCell(this, id, colids[j]);
+                            } catch (Exception e) {
+                                exceptionsDuringCachePopulation.add(e);
+                                value = null;
+                            }
                             if (value != null && !(value instanceof Component)
                                     && !(value instanceof String)) {
                                 // Avoid errors if a generator returns
@@ -2098,10 +2169,20 @@ public class Table extends AbstractSelect implements Action.Container,
                                 value = value.toString();
                             }
                         } else if (iscomponent[j]) {
-                            value = p.getValue();
+                            try {
+                                value = p.getValue();
+                            } catch (Exception e) {
+                                exceptionsDuringCachePopulation.add(e);
+                                value = null;
+                            }
                             listenProperty(p, oldListenedProperties);
                         } else if (p != null) {
-                            value = getPropertyValue(id, colids[j], p);
+                            try {
+                                value = getPropertyValue(id, colids[j], p);
+                            } catch (Exception e) {
+                                exceptionsDuringCachePopulation.add(e);
+                                value = null;
+                            }
                             /*
                              * If returned value is Component (via fieldfactory
                              * or overridden getPropertyValue) we expect it to
@@ -2114,7 +2195,12 @@ public class Table extends AbstractSelect implements Action.Container,
                                 listenProperty(p, oldListenedProperties);
                             }
                         } else {
-                            value = getPropertyValue(id, colids[j], null);
+                            try {
+                                value = getPropertyValue(id, colids[j], null);
+                            } catch (Exception e) {
+                                exceptionsDuringCachePopulation.add(e);
+                                value = null;
+                            }
                         }
                     }
                 }
@@ -3049,6 +3135,7 @@ public class Table extends AbstractSelect implements Action.Container,
                     indexInRowbuffer, itemId);
         }
         target.endTag("urows");
+        maybeThrowCacheUpdateExceptions();
     }
 
     private void paintPartialRowAdditions(PaintTarget target,
@@ -3096,6 +3183,7 @@ public class Table extends AbstractSelect implements Action.Container,
         target.addAttribute("firstprowix", firstIx);
         target.addAttribute("numprows", count);
         target.endTag("prows");
+        maybeThrowCacheUpdateExceptions();
     }
 
     /**
-- 
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