Examples of org.geoserver.catalog.Catalog.list()

org.geoserver.catalog.Catalog.list()
Returns an {@link Iterator} over the catalog objects of the requested type that match thegiven query predicate, positioned at the specified {@code offset} and limited to the numberrequested number of elements.
The returned iterator shall be closed once it is no longer needed, to account for streaming implementations of this interface to release any needed resource such as database or remote service connections. Example usage:
```
  Catalog catalog = ... Filter filter = ... CloseableIterator iterator = catalog.list(LayerInfo.class, filter); try{ while(iterator.hasNext()){ iterator.next(); } }finally{ iterator.close(); }  
```
@param of the type of catalog objects to return. Super interfaces of concrete catalog objectsare allowed (such as {@code StoreInfo.class} and {@code ResourceInfo.class}, although the more generic {@code Info.class} and {@code CatalogInfo.class} are not. @param filter the query predicate, use {@link Filter#INCLUDE} if needed, {@code null} is notaccepted. @return an iterator over the predicate matching catalog objects that must be closed onceconsumed @throws IllegalArgumentException if {@code sortOrder != null} and {@link #canSort !canSort(of, sortOrder)}

            // encode layer groups
            CloseableIterator<LayerGroupInfo> layerGroups;
            {
                final Filter lgFilter = Predicates.acceptAll();
                SortBy layerGroupOrder = asc("name");
                layerGroups = catalog.list(LayerGroupInfo.class, lgFilter, null, null,
                        layerGroupOrder);
            }            
            try {
                layersAlreadyProcessed = handleLayerGroups(layerGroups);
            } catch (Exception e) {

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                layerGroups.close();
            }            
            
            // now encode each layer individually
            SortBy layerOrder = asc("name");
            layers = catalog.list(LayerInfo.class, filter, null, null, layerOrder);
            try {
                handleLayerTree(layers, layersAlreadyProcessed);
            } finally {
                layers.close();
            }

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            }
        }


        final Filter filter = getFilter();
        //our already filtered and closeable iterator
        Iterator<LayerInfo> items = catalog.list(LayerInfo.class, filter, first, count, sortOrder);


        return items;
    }


    private Filter getFilter() {

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        layers.add(l1);
        layers.add(l2);
        layers.add(lc1);
        layers.add(lc2);
        expect(cat.getLayers()).andReturn(layers).anyTimes();
        expect(cat.list(LayerInfo.class, Filter.INCLUDE, 
                (Integer) null, (Integer) null, (SortBy) null))
            .andReturn(new CloseableIteratorAdapter<LayerInfo>(layers.iterator())).anyTimes();
        replay(cat);
        
        catalog = new LocalWorkspaceCatalog(cat);

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            @Override
            protected List<Tuple> load() {
                Catalog catalog = GeoServerApplication.get().getCatalog();
                Filter filter = Predicates.acceptAll();
                CloseableIterator<WorkspaceInfo> list = catalog.list(WorkspaceInfo.class, filter,
                        null, 4000, null);
                List<Tuple> workspaces;
                try {
                    workspaces = Lists.newArrayList(Iterators.transform(list,
                            new Function<WorkspaceInfo, Tuple>() {

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                if (ws == null) {
                    return Lists.newArrayList();
                }
                Filter filter = Predicates.equal("workspace.id", ws.id);
                int limit = 100;
                CloseableIterator<StoreInfo> iter = catalog.list(StoreInfo.class, filter, null,
                        limit, null);


                List<Tuple> stores;
                try {
                    stores = Lists.newArrayList(Iterators.transform(iter,

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                if (storeInfo == null) {
                    return Lists.newArrayList();
                }
                Integer limit = 100;
                Filter filter = Predicates.equal("store.id", storeInfo.id);
                CloseableIterator<ResourceInfo> iter = catalog.list(ResourceInfo.class, filter,
                        null, limit, null);


                List<Tuple> resources;
                try {
                    resources = Lists.newArrayList(Iterators.transform(iter,

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