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Fix cast exception in UI (#816)

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* check type before cast

Signed-off-by: Stefan Klotz <stefan.klotz@bosch-si.com>

* use collection instead of set

Signed-off-by: Stefan Klotz <stefan.klotz@bosch-si.com>
This commit is contained in:
Stefan Klotz
2019-04-02 13:24:53 +02:00
committed by Dominic Schabel
parent fa6520a094
commit 3a5776a90d
1 changed files with 14 additions and 6 deletions
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20
hawkbit-ui/src/main/java/org/eclipse/hawkbit/ui/common/table/AbstractTable.java
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@@ -9,6 +9,7 @@
package org.eclipse.hawkbit.ui.common.table;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
@@ -131,19 +132,26 @@ public abstract class AbstractTable<E extends NamedEntity> extends Table impleme
}
/**
* Gets the selected item id or in multiselect mode a set of selected ids.
* Gets the selected item id or in multiselect mode the selected ids.
*
* @param table
* the table to retrieve the selected ID(s)
* @return the ID(s) which are selected in the table
*/
@SuppressWarnings("unchecked")
public static <T> Set<T> getTableValue(final Table table) {
@SuppressWarnings("unchecked")
Set<T> values = (Set<T>) table.getValue();
if (values == null) {
values = Collections.emptySet();
final Object value = table.getValue();
Set<T> idsReturn;
if (value == null) {
idsReturn = Collections.emptySet();
} else if (value instanceof Collection) {
final Collection<T> ids = (Collection<T>) value;
idsReturn = ids.stream().filter(Objects::nonNull).collect(Collectors.toSet());
} else {
final T id = (T) value;
idsReturn = Collections.singleton(id);
}
return values.stream().filter(Objects::nonNull).collect(Collectors.toSet());
return idsReturn;
}
private void onValueChange() {