1 files changed, 75 insertions, 0 deletions
diff --git a/src/com/android/loganalysis/parser/DumpsysPackageStatsParser.java b/src/com/android/loganalysis/parser/DumpsysPackageStatsParser.java
new file mode 100644
index 0000000..d06cfd5
--- /dev/null
+++ b/src/com/android/loganalysis/parser/DumpsysPackageStatsParser.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2017 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.loganalysis.parser;
+
+import com.android.loganalysis.item.AppVersionItem;
+import com.android.loganalysis.item.DumpsysPackageStatsItem;
+
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/** A {@link IParser} to parse package stats and create a mapping table of packages and versions */
+public class DumpsysPackageStatsParser implements IParser {
+
+    /** Matches: Package [com.google.android.googlequicksearchbox] (607929e): */
+    private static final Pattern PACKAGE_NAME = Pattern.compile("^\\s*Package \\[(.*)\\].*");
+
+    /** Matches: versionCode=300734793 minSdk=10000 targetSdk=10000 */
+    private static final Pattern VERSION_CODE = Pattern.compile("^\\s*versionCode=(\\d+).*");
+
+    /** Matches: versionName=6.16.35.26.arm64 */
+    private static final Pattern VERSION_NAME = Pattern.compile("^\\s*versionName=(.*)$");
+
+    /**
+     * {@inheritDoc}
+     *
+     * @return The {@link DumpsysPackageStatsItem}.
+     */
+    @Override
+    public DumpsysPackageStatsItem parse(List<String> lines) {
+        DumpsysPackageStatsItem item = new DumpsysPackageStatsItem();
+        String packageName = null;
+        String versionCode = null;
+        String versionName = null;
+
+        for (String line : lines) {
+            Matcher m = PACKAGE_NAME.matcher(line);
+            if (m.matches()) {
+                packageName = m.group(1);
+                versionCode = null;
+                versionName = null;
+                continue;
+            }
+            m = VERSION_CODE.matcher(line);
+            if (m.matches()) {
+                versionCode = m.group(1);
+                continue;
+            }
+            m = VERSION_NAME.matcher(line);
+            if (m.matches()) {
+                versionName = m.group(1).trim();
+                if (packageName != null && versionCode != null) {
+                    item.put(
+                            packageName,
+                            new AppVersionItem(Integer.parseInt(versionCode), versionName));
+                }
+                packageName = null;
+            }
+        }
+        return item;
+    }
+}