| /* |
| * 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.ignite.cache.query; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.List; |
| import org.apache.ignite.internal.processors.bulkload.BulkLoadAckClientParameters; |
| import org.apache.ignite.internal.processors.bulkload.BulkLoadProcessor; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * A special FieldsQueryCursor subclass that is used as a sentinel to transfer data from bulk load |
| * (COPY) command to the JDBC or other client-facing driver: the bulk load batch processor |
| * and parameters to send to the client. |
| * */ |
| public class BulkLoadContextCursor implements FieldsQueryCursor<List<?>> { |
| /** Bulk load context from SQL command. */ |
| private final BulkLoadProcessor processor; |
| |
| /** Bulk load parameters to send to the client. */ |
| private final BulkLoadAckClientParameters clientParams; |
| |
| /** |
| * Creates a cursor. |
| * |
| * @param processor Bulk load context object to store. |
| * @param clientParams Parameters to send to client. |
| */ |
| public BulkLoadContextCursor(BulkLoadProcessor processor, BulkLoadAckClientParameters clientParams) { |
| this.processor = processor; |
| this.clientParams = clientParams; |
| } |
| |
| /** |
| * Returns a bulk load context. |
| * |
| * @return a bulk load context. |
| */ |
| public BulkLoadProcessor bulkLoadProcessor() { |
| return processor; |
| } |
| |
| /** |
| * Returns the bulk load parameters to send to the client. |
| * |
| * @return The bulk load parameters to send to the client. |
| */ |
| public BulkLoadAckClientParameters clientParams() { |
| return clientParams; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public List<List<?>> getAll() { |
| return Collections.singletonList(Arrays.asList(processor, clientParams)); |
| } |
| |
| /** {@inheritDoc} */ |
| @NotNull @Override public Iterator<List<?>> iterator() { |
| return getAll().iterator(); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public void close() { |
| // no-op |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public String getFieldName(int idx) { |
| if (idx < 0 || idx > 1) |
| throw new IndexOutOfBoundsException(); |
| |
| return idx == 0 ? "processor" : "clientParams"; |
| } |
| |
| /** {@inheritDoc} */ |
| @Override public int getColumnsCount() { |
| return 2; |
| } |
| } |