| /* |
| * 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.solr.client.solrj.io.stream; |
| |
| import java.io.IOException; |
| import java.lang.invoke.MethodHandles; |
| import java.util.List; |
| |
| import org.apache.solr.client.solrj.io.Tuple; |
| import org.apache.solr.client.solrj.io.comp.StreamComparator; |
| import org.apache.solr.client.solrj.io.stream.expr.Explanation; |
| import org.apache.solr.client.solrj.io.stream.expr.Explanation.ExpressionType; |
| import org.apache.solr.client.solrj.io.stream.expr.StreamExplanation; |
| import org.apache.solr.client.solrj.io.stream.expr.StreamFactory; |
| import org.apache.solr.common.SolrException; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * @since 6.0.0 |
| */ |
| public class ExceptionStream extends TupleStream { |
| |
| private TupleStream stream; |
| private Exception openException; |
| private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass()); |
| |
| public ExceptionStream(TupleStream stream) { |
| this.stream = stream; |
| } |
| |
| public List<TupleStream> children() { |
| return null; |
| } |
| |
| public void open() { |
| try { |
| stream.open(); |
| } catch (Exception e) { |
| this.openException = e; |
| } |
| } |
| |
| public Tuple read() { |
| if(openException != null) { |
| //There was an exception during the open. |
| SolrException.log(log, openException); |
| return Tuple.EXCEPTION(openException.getMessage(), true); |
| } |
| |
| try { |
| return stream.read(); |
| } catch (Exception e) { |
| SolrException.log(log, e); |
| return Tuple.EXCEPTION(e.getMessage(), true); |
| } |
| } |
| |
| @Override |
| public Explanation toExplanation(StreamFactory factory) throws IOException { |
| |
| return new StreamExplanation(getStreamNodeId().toString()) |
| .withFunctionName("non-expressible") |
| .withImplementingClass(this.getClass().getName()) |
| .withExpressionType(ExpressionType.STREAM_SOURCE) |
| .withExpression("non-expressible"); |
| } |
| |
| public StreamComparator getStreamSort() { |
| return this.stream.getStreamSort(); |
| } |
| |
| public void close() throws IOException { |
| stream.close(); |
| } |
| |
| public void setStreamContext(StreamContext context) { |
| this.stream.setStreamContext(context); |
| } |
| } |