| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed 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 com.intellij.rt.execution.junit.segments; |
| |
| import java.io.*; |
| import java.util.Vector; |
| |
| class TraceFilter { |
| private final String myTrace; |
| private final Vector myLines = new Vector(); |
| |
| public TraceFilter(String trace) { |
| myTrace = trace; |
| } |
| |
| public String execute() { |
| try { |
| readLines(); |
| } catch (IOException e) { |
| return myTrace; |
| } |
| int traceLastLine = firstJUnitLine(myLines.size() - 1, true); |
| if (traceLastLine < 0) return ""; |
| int traceFirstLine = firstJUnitLine(traceLastLine, false); |
| StringWriter buffer = new StringWriter(); |
| PrintWriter writer = new PrintWriter(buffer); |
| for (int i = 0; i < traceFirstLine; i++) writer.println(myLines.elementAt(i)); |
| for (int i = traceLastLine; i < myLines.size(); i++) writer.println(myLines.elementAt(i)); |
| writer.flush(); |
| return buffer.toString(); |
| } |
| |
| private int firstJUnitLine(int startFrom, boolean searchForJUnitLines) { |
| for (int i = startFrom; i >= 0; i--) { |
| String line = (String) myLines.elementAt(i); |
| if (isIdeaJUnit(line) == searchForJUnitLines) return i; |
| } |
| return startFrom; |
| } |
| |
| /** |
| * @noinspection HardCodedStringLiteral |
| */ |
| private boolean isIdeaJUnit(String line) { |
| return line.indexOf("com.intellij.rt") >= 0; |
| } |
| |
| private void readLines() throws IOException { |
| BufferedReader reader = new BufferedReader(new StringReader(myTrace)); |
| String line; |
| while ((line = reader.readLine()) != null) { myLines.addElement(line); } |
| reader.close(); |
| } |
| } |