| /* |
| |
| Derby - Class org.apache.derbyTesting.functionTests.util.StatParser |
| |
| 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.derbyTesting.functionTests.util; |
| |
| /** |
| * Utilities for parsing runtimestats |
| * |
| * RESOLVE: This class should be internationalized. |
| */ |
| public class StatParser |
| { |
| public static String getScanCols(String runTimeStats) |
| throws Throwable |
| { |
| if (runTimeStats == null) |
| { |
| return "The RunTimeStatistics string passed in is null"; |
| } |
| |
| int startIndex; |
| int endIndex = 0; |
| int indexIndex; |
| |
| StringBuffer strbuf = new StringBuffer(); |
| |
| /* |
| ** We need to know if we used an index |
| */ |
| if ((indexIndex = runTimeStats.indexOf("Index Scan ResultSet")) != -1) |
| { |
| int textend = runTimeStats.indexOf("\n", indexIndex); |
| strbuf.append(runTimeStats.substring(indexIndex, textend+1)); |
| } |
| else |
| { |
| strbuf.append("TableScan\n"); |
| } |
| |
| int count = 0; |
| while ((startIndex = runTimeStats.indexOf("Bit set of columns fetched", endIndex)) != -1) |
| { |
| count++; |
| endIndex = runTimeStats.indexOf("}", startIndex); |
| if (endIndex == -1) |
| { |
| endIndex = runTimeStats.indexOf("All", startIndex); |
| if (endIndex == -1) |
| { |
| throw new Throwable("couldn't find the closing } on "+ |
| "columnFetchedBitSet in "+runTimeStats); |
| } |
| endIndex+=5; |
| } |
| else |
| { |
| endIndex++; |
| } |
| strbuf.append(runTimeStats.substring(startIndex, endIndex)); |
| strbuf.append("\n"); |
| } |
| if (count == 0) |
| { |
| throw new Throwable("couldn't find string 'Bit set of columns fetched' in :\n"+ |
| runTimeStats); |
| } |
| |
| return strbuf.toString(); |
| } |
| } |