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package com.taobao.common.dexpatcher.algorithms.diff.utils;
import java.io.File;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.regex.Pattern;
public class Utils {
public static boolean isPresent(String str) {
return str != null && str.length() > 0;
}
public static boolean isBlank(String str) {
return !isPresent(str);
}
public static boolean isPresent(Iterator iterator) {
return iterator != null && iterator.hasNext();
}
public static boolean isBlank(Iterator iterator) {
return !isPresent(iterator);
}
public static String convertToPatternString(String input) {
//convert \\.
if (input.contains(".")) {
input = input.replaceAll("\\.", "\\\\.");
}
//convert ？to .
if (input.contains("?")) {
input = input.replaceAll("\\?", "\\.");
}
//convert * to.*
if (input.contains("*")) {
input = input.replace("*", ".*");
}
return input;
}
public static boolean isStringMatchesPatterns(String str, Collection<Pattern> patterns) {
for (Pattern pattern : patterns) {
if (pattern.matcher(str).matches()) {
return true;
}
}
return false;
}
public static <T> String collectionToString(Collection<T> collection) {
StringBuilder sb = new StringBuilder();
sb.append('{');
boolean isFirstElement = true;
for (T element : collection) {
if (isFirstElement) {
isFirstElement = false;
} else {
sb.append(',');
}
sb.append(element);
}
sb.append('}');
return sb.toString();
}
public static boolean checkFileInPattern(HashSet<Pattern> patterns, String key) {
if (!patterns.isEmpty()) {
for (Iterator<Pattern> it = patterns.iterator(); it.hasNext();) {
Pattern p = it.next();
if (p.matcher(key).matches()) {
return true;
}
}
}
return false;
}
// public static String genResOutputFile(File output, File newZipFile, Configuration config,
// ArrayList<String> addedSet, ArrayList<String> modifiedSet, ArrayList<String> deletedSet,
// ArrayList<String> largeModifiedSet, HashMap<String, ResDiffDecoder.LargeModeInfo> largeModifiedMap) throws IOException {
// TinkerZipFile oldApk = new TinkerZipFile(config.mOldApkFile);
// TinkerZipFile newApk = new TinkerZipFile(newZipFile);
// TinkerZipOutputStream out = new TinkerZipOutputStream(new BufferedOutputStream(new FileOutputStream(output)));
//
// try {
// final Enumeration<? extends TinkerZipEntry> entries = oldApk.entries();
// while (entries.hasMoreElements()) {
// TinkerZipEntry zipEntry = entries.nextElement();
// if (zipEntry == null) {
// throw new TinkerPatchException(
// String.format("zipEntry is null when get from oldApk")
// );
// }
// String name = zipEntry.getName();
// if (Utils.checkFileInPattern(config.mResFilePattern, name)) {
// //won't contain in add set.
// if (!deletedSet.contains(name)
// && !modifiedSet.contains(name)
// && !largeModifiedSet.contains(name)
// && !name.equals(TypedValue.RES_MANIFEST)) {
// ResUtil.extractTinkerEntry(oldApk, zipEntry, out);
// }
// }
// }
// //process manifest
// TinkerZipEntry manifestZipEntry = oldApk.getEntry(TypedValue.RES_MANIFEST);
// if (manifestZipEntry == null) {
// throw new TinkerPatchException(
// String.format("can't found resource file %s from old apk file %s", TypedValue.RES_MANIFEST, config.mOldApkFile.getAbsolutePath())
// );
// }
// ResUtil.extractTinkerEntry(oldApk, manifestZipEntry, out);
//
// for (String name : largeModifiedSet) {
// TinkerZipEntry largeZipEntry = oldApk.getEntry(name);
// if (largeZipEntry == null) {
// throw new TinkerPatchException(
// String.format("can't found resource file %s from old apk file %s", name, config.mOldApkFile.getAbsolutePath())
// );
// }
// ResDiffDecoder.LargeModeInfo largeModeInfo = largeModifiedMap.get(name);
// ResUtil.extractLargeModifyFile(largeZipEntry, largeModeInfo.path, largeModeInfo.crc, out);
// }
//
// for (String name : addedSet) {
// TinkerZipEntry addZipEntry = newApk.getEntry(name);
// if (addZipEntry == null) {
// throw new TinkerPatchException(
// String.format("can't found add resource file %s from new apk file %s", name, config.mNewApkFile.getAbsolutePath())
// );
// }
// ResUtil.extractTinkerEntry(newApk, addZipEntry, out);
// }
//
// for (String name : modifiedSet) {
// TinkerZipEntry modZipEntry = newApk.getEntry(name);
// if (modZipEntry == null) {
// throw new TinkerPatchException(
// String.format("can't found add resource file %s from new apk file %s", name, config.mNewApkFile.getAbsolutePath())
// );
// }
// ResUtil.extractTinkerEntry(newApk, modZipEntry, out);
// }
// } finally {
// out.close();
// oldApk.close();
// newApk.close();
// }
// return MD5.getMD5(output);
// }
public static String getResourceMeta(String baseCrc, String md5) {
return TypedValue.RES_OUT + "," + baseCrc + "," + md5;
}
/**
* if bsDiff result is too larger, just treat it as newly file
* @param bsDiffFile
* @param newFile
* @return
*/
public static boolean checkBsDiffFileSize(File bsDiffFile, File newFile) {
if (!bsDiffFile.exists()) {
throw new TinkerPatchException("can not find the bsDiff file:" + bsDiffFile.getAbsolutePath());
}
//check bsDiffFile file size
double ratio = bsDiffFile.length() / (double) newFile.length();
if (ratio > TypedValue.BSDIFF_PATCH_MAX_RATIO) {
//// Logger.e("bsDiff patch file:%s, size:%dk, new file:%s, size:%dk. patch file is too large, treat it as newly file to save patch time!",
// bsDiffFile.getName(),
// bsDiffFile.length() / 1024,
// newFile.getName(),
// newFile.length() / 1024
// );
return false;
}
return true;
}
}