/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You under the Apache License, Version 2.0 * (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.zeppelin.tabledata; import org.apache.zeppelin.resource.Resource; import org.apache.zeppelin.resource.ResourcePoolUtils; import java.util.Iterator; /** * Proxy TableData for ResourcePool */ public class TableDataProxy implements TableData { private final Resource resource; public TableDataProxy(Resource tableDataRemoteResource) { this.resource = tableDataRemoteResource; } @Override public ColumnDef[] columns() { return (ColumnDef[]) resource.invokeMethod( "columns", null, null); } @Override public Iterator<Row> rows() { String resourceName = resource.getResourceId().getName() + ".rows"; Resource rows = resource.invokeMethod("rows", null, null, resourceName); ProxyRowIterator it = new ProxyRowIterator(rows); return it; } }