Author: thomasm
Date: Thu Dec 1 10:59:55 2016
New Revision: 1772167
URL: http://svn.apache.org/viewvc?rev=1772167&view=rev
Log:
OAK-1884 Query: log file analyzer tool
Added:
jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/query/QueryShapeTool.java
Added:
jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/query/QueryShapeTool.java
URL:
http://svn.apache.org/viewvc/jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/query/QueryShapeTool.java?rev=1772167&view=auto
==============================================================================
---
jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/query/QueryShapeTool.java
(added)
+++
jackrabbit/oak/trunk/oak-core/src/test/java/org/apache/jackrabbit/oak/query/QueryShapeTool.java
Thu Dec 1 10:59:55 2016
@@ -0,0 +1,92 @@
+/*
+ * 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.jackrabbit.oak.query;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.LineNumberReader;
+import java.util.TreeSet;
+
+/**
+ * A tool that converts a list of queries to parameterized queries. This for
+ * example allows to extract unique queries.
+ */
+public class QueryShapeTool {
+
+ public static void main(String... args) throws IOException {
+ process(new File(args[0]));
+ }
+
+ public static void process(File file) throws IOException {
+ processFile(file);
+ }
+
+ private static void processFile(File file) throws IOException {
+ if (file.isDirectory()) {
+ for (File f : file.listFiles()) {
+ processFile(f);
+ }
+ return;
+ }
+ System.out.println("File " + file);
+ LineNumberReader r = new LineNumberReader(new BufferedReader(
+ new FileReader(file)));
+ try {
+ process(r);
+ } finally {
+ r.close();
+ }
+ System.out.println();
+ }
+
+ private static void process(LineNumberReader reader) throws IOException {
+ TreeSet<String> sortedUnique = new TreeSet<String>();
+ while (true) {
+ String line = reader.readLine();
+ if (line == null) {
+ break;
+ }
+ sortedUnique.add(shape(line));
+ }
+ for (String s : sortedUnique) {
+ System.out.println(s);
+ }
+ }
+
+ private static String shape(String query) {
+ String result = query;
+ // replace double quoted string literals with "$s"
+ result = result.replaceAll("\"[^\"]*\"", "\\$s");
+ // replace single quoted string literals with "$s"
+ result = result.replaceAll("'[^\']*\'", "\\$s");
+ // replace repeated "$s" with a single one (due to escape characters
in string literals)
+ result = result.replaceAll("(\\$s)+", "\\$s");
+
+ // xpath: replace "//" with "/ /" so we can more easily stop there
+ result = result.replaceAll("//", "/ /");
+ // xpath: replace "/element(" with "/ element" for the same reason
+ result = result.replaceAll("/element\\(", "/ element\\(");
+ // xpath: replace "/text(" with "/ text" for the same reason
+ result = result.replaceAll("/text\\(", "/ text\\(");
+ // xpath: replace a path at the beginning of the query with $path
+ result = result.replaceAll("/jcr:root(/([^ /]*))*[ /]",
"/jcr:root/\\$path/");
+ return result;
+ }
+
+}
\ No newline at end of file
