| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * 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.android.preload.actions; |
| |
| import com.android.preload.DumpData; |
| import com.android.preload.DumpTableModel; |
| import com.android.preload.Main; |
| |
| import java.awt.event.ActionEvent; |
| import java.io.File; |
| import java.io.PrintWriter; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.TreeSet; |
| import java.util.regex.Pattern; |
| |
| import javax.swing.AbstractAction; |
| |
| /** |
| * Compute an intersection of classes from the given data. A class is in the intersection if it |
| * appears in at least the number of threshold given packages. An optional blacklist can be |
| * used to filter classes from the intersection. |
| */ |
| public class ComputeThresholdAction extends AbstractThreadedAction { |
| protected int threshold; |
| private Pattern blacklist; |
| private DumpTableModel dataTableModel; |
| |
| /** |
| * Create an action with the given parameters. The blacklist is a regular expression |
| * that filters classes. |
| */ |
| public ComputeThresholdAction(String name, DumpTableModel dataTableModel, int threshold, |
| String blacklist) { |
| super(name); |
| this.dataTableModel = dataTableModel; |
| this.threshold = threshold; |
| if (blacklist != null) { |
| this.blacklist = Pattern.compile(blacklist); |
| } |
| } |
| |
| @Override |
| public void actionPerformed(ActionEvent e) { |
| List<DumpData> data = dataTableModel.getData(); |
| if (data.size() == 0) { |
| Main.getUI().showMessageDialog("No data available, please scan packages or run " |
| + "monkeys."); |
| return; |
| } |
| if (data.size() == 1) { |
| Main.getUI().showMessageDialog("Cannot compute list from only one data set, please " |
| + "scan packages or run monkeys."); |
| return; |
| } |
| |
| super.actionPerformed(e); |
| } |
| |
| @Override |
| public void run() { |
| Main.getUI().showWaitDialog(); |
| |
| Map<String, Set<String>> uses = new HashMap<String, Set<String>>(); |
| for (DumpData d : dataTableModel.getData()) { |
| Main.getUI().updateWaitDialog("Merging " + d.getPackageName()); |
| updateClassUse(d.getPackageName(), uses, getBootClassPathClasses(d.getDumpData())); |
| } |
| |
| Main.getUI().updateWaitDialog("Computing thresholded set"); |
| Set<String> result = fromThreshold(uses, blacklist, threshold); |
| Main.getUI().hideWaitDialog(); |
| |
| boolean ret = Main.getUI().showConfirmDialog("Computed a set with " + result.size() |
| + " classes, would you like to save to disk?", "Save?"); |
| if (ret) { |
| File f = Main.getUI().showSaveDialog(); |
| if (f != null) { |
| saveSet(result, f); |
| } |
| } |
| } |
| |
| private Set<String> fromThreshold(Map<String, Set<String>> classUses, Pattern blacklist, |
| int threshold) { |
| TreeSet<String> ret = new TreeSet<>(); // TreeSet so it's nicely ordered by name. |
| |
| for (Map.Entry<String, Set<String>> e : classUses.entrySet()) { |
| if (e.getValue().size() >= threshold) { |
| if (blacklist == null || !blacklist.matcher(e.getKey()).matches()) { |
| ret.add(e.getKey()); |
| } |
| } |
| } |
| |
| return ret; |
| } |
| |
| private static void updateClassUse(String pkg, Map<String, Set<String>> classUses, |
| Set<String> classes) { |
| for (String className : classes) { |
| Set<String> old = classUses.get(className); |
| if (old == null) { |
| classUses.put(className, new HashSet<String>()); |
| } |
| classUses.get(className).add(pkg); |
| } |
| } |
| |
| private static Set<String> getBootClassPathClasses(Map<String, String> source) { |
| Set<String> ret = new HashSet<>(); |
| for (Map.Entry<String, String> e : source.entrySet()) { |
| if (e.getValue() == null) { |
| ret.add(e.getKey()); |
| } |
| } |
| return ret; |
| } |
| |
| private static void saveSet(Set<String> result, File f) { |
| try { |
| PrintWriter out = new PrintWriter(f); |
| for (String s : result) { |
| out.println(s); |
| } |
| out.close(); |
| } catch (Exception e) { |
| e.printStackTrace(); |
| } |
| } |
| } |