1 files changed, 100 insertions, 0 deletions
diff --git a/src/com/android/loganalysis/parser/DumpsysProcessMeminfoParser.java b/src/com/android/loganalysis/parser/DumpsysProcessMeminfoParser.java
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+++ b/src/com/android/loganalysis/parser/DumpsysProcessMeminfoParser.java
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+/*
+ * Copyright (C) 2018 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.DumpsysProcessMeminfoItem;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * An {@link IParser} used to parse output from `dumpsys meminfo --checkin PROCESS` where PROCESS is
+ * from the output of `dumpsys meminfo`. Data is stored as a map of categories to a map of
+ * measurement types to values. Format is from {@link android.app.ActivityThread#dumpMemInfoTable}.
+ */
+public class DumpsysProcessMeminfoParser implements IParser {
+
+    // Order is VERSION,PID,NAME,[native,dalvik,other,total]{11},[name,val{8}]*
+    private static final Pattern MEMINFO_OUTPUT =
+            Pattern.compile("(\\d+),(\\d+),([^,]+),((?:(?:N/A|\\d+),){44})(.*)");
+    // Matches the ending [name,val{8}]
+    private static final Pattern MEMINFO_ADDITIONAL_OUTPUT =
+            Pattern.compile("([^,]+),((?:(?:N/A|\\d+),){8})");
+    // Matches a value with comma
+    private static final Pattern MEMINFO_VALUE = Pattern.compile("(N/A|\\d+),");
+
+    @Override
+    public DumpsysProcessMeminfoItem parse(List<String> lines) {
+        DumpsysProcessMeminfoItem item = new DumpsysProcessMeminfoItem();
+        for (String line : lines) {
+            Matcher m = MEMINFO_OUTPUT.matcher(line);
+            if (!m.matches()) continue;
+            try {
+                item.setPid(Integer.parseInt(m.group(2)));
+            } catch (NumberFormatException e) {
+                // skip
+            }
+            item.setProcessName(m.group(3));
+            // parse memory info main areas
+            String mainValues = m.group(4);
+            Matcher mainMatcher = MEMINFO_VALUE.matcher(mainValues);
+            Map<String, Long> nativeData = item.get(DumpsysProcessMeminfoItem.NATIVE);
+            Map<String, Long> dalvikData = item.get(DumpsysProcessMeminfoItem.DALVIK);
+            Map<String, Long> otherData = item.get(DumpsysProcessMeminfoItem.OTHER);
+            Map<String, Long> totalData = item.get(DumpsysProcessMeminfoItem.TOTAL);
+            for (int i = 0; i < DumpsysProcessMeminfoItem.MAIN_OUTPUT_ORDER.length; i++) {
+                String curMeasurement = DumpsysProcessMeminfoItem.MAIN_OUTPUT_ORDER[i];
+                parseNextValue(mainMatcher, nativeData, curMeasurement);
+                parseNextValue(mainMatcher, dalvikData, curMeasurement);
+                parseNextValue(mainMatcher, otherData, curMeasurement);
+                parseNextValue(mainMatcher, totalData, curMeasurement);
+            }
+            String additionalData = m.group(5);
+            Matcher additionalMatcher = MEMINFO_ADDITIONAL_OUTPUT.matcher(additionalData);
+            // parse memory info other areas
+            while (additionalMatcher.find()) {
+                try {
+                    String curLabel = additionalMatcher.group(1);
+                    Matcher additionalValueMatcher =
+                            MEMINFO_VALUE.matcher(additionalMatcher.group(2));
+                    Map<String, Long> curData = new HashMap<>();
+                    for (int i = 0; i < DumpsysProcessMeminfoItem.OTHER_OUTPUT_ORDER.length; i++) {
+                        String curMeasurement = DumpsysProcessMeminfoItem.OTHER_OUTPUT_ORDER[i];
+                        parseNextValue(additionalValueMatcher, curData, curMeasurement);
+                    }
+                    item.put(curLabel, curData);
+                } catch (ArrayIndexOutOfBoundsException e) {
+                    break;
+                }
+            }
+        }
+        return item;
+    }
+
+    private void parseNextValue(Matcher m, Map<String, Long> output, String key) {
+        if (!m.find()) return;
+        String value = m.group(1);
+        if ("N/A".equals(value)) return;
+        try {
+            output.put(key, Long.parseLong(value));
+        } catch (NumberFormatException e) {
+            // skip
+        }
+    }
+}