Add qtaguid & package UID log collectors to AUPT

qtaguid includes network usage per uid, but it does not contain actual
package names. Therefore, we have to also collect package UIDs.

Change-Id: I6bbc9e0a266c15328f51bb3d7c915f242669fb43

src/com/android/loganalysis/item/QtaguidItem.java

+/*
+ * Copyright (C) 2014 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.item;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * An {@link IItem} used to qtaguid info.
+ */
+public class QtaguidItem implements IItem {
+    /** Constant for JSON output */
+    public static final String USERS_KEY = "users";
+    /** Constant for JSON output */
+    public static final String UID_KEY = "uid";
+    /** Constant for JSON output */
+    public static final String RX_BYTES_KEY = "rx_bytes";
+    /** Constant for JSON output */
+    public static final String TX_BYTES_KEY = "tx_bytes";
+
+    private Map<Integer, Row> mRows = new HashMap<Integer, Row>();
+
+    private static class Row {
+        public int rxBytes = 0;
+        public int txBytes = 0;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public IItem merge(IItem other) throws ConflictingItemException {
+        throw new ConflictingItemException("Qtaguid items cannot be merged");
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isConsistent(IItem other) {
+       return false;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public JSONObject toJson() {
+        JSONObject object = new JSONObject();
+        JSONArray users = new JSONArray();
+        for (int uid : getUids()) {
+            try {
+                JSONObject user = new JSONObject();
+                user.put(UID_KEY, uid);
+                user.put(RX_BYTES_KEY, getRxBytes(uid));
+                user.put(TX_BYTES_KEY, getTxBytes(uid));
+                users.put(user);
+            } catch (JSONException e) {
+                // ignore
+            }
+        }
+
+        try {
+            object.put(USERS_KEY, users);
+        } catch (JSONException e) {
+            // ignore
+        }
+        return object;
+    }
+
+    /**
+     * Get a set of UIDs seen in the qtaguid output.
+     */
+    public Set<Integer> getUids() {
+        return mRows.keySet();
+    }
+
+    /**
+     * Add a row from the qtaguid output to the {@link QtaguidItem}.
+     *
+     * @param uid The UID from the output
+     * @param rxBytes the number of received bytes
+     * @param txBytes the number of sent bytes
+     */
+    public void addRow(int uid, int rxBytes, int txBytes) {
+        Row row = new Row();
+        row.rxBytes = rxBytes;
+        row.txBytes = txBytes;
+        mRows.put(uid, row);
+    }
+
+    /**
+     * Update a row from the qtaguid output to the {@link QtaguidParser}.
+     * It adds rxBytes and txBytes to the previously added row.
+     * contains(uid) should be true before calling this method.
+     *
+     * @param uid The UID from the output
+     * @param rxBytes the number of received bytes
+     * @param txBytes the number of sent bytes
+     * @throws IllegalArgumentException if the given UID is not added
+     */
+    public void updateRow(int uid, int rxBytes, int txBytes) {
+        if (!mRows.containsKey(uid)) {
+            throw new IllegalArgumentException("Given UID " + uid + " is not added to QtaguidItem");
+        }
+
+        Row row = mRows.get(uid);
+        row.rxBytes += rxBytes;
+        row.txBytes += txBytes;
+    }
+
+    /**
+     * Returns if the {@link QtaguidItem} contains a given UID.
+     */
+    public boolean contains(int uid) {
+        return mRows.containsKey(uid);
+    }
+
+    /**
+     * Get the number of received bytes for a given UID.
+     */
+    public int getRxBytes(int uid) {
+        return mRows.get(uid).rxBytes;
+    }
+
+    /**
+     * Get the number of sent bytes for a given UID.
+     */
+    public int getTxBytes(int uid) {
+        return mRows.get(uid).txBytes;
+    }
+}

src/com/android/loganalysis/parser/QtaguidParser.java

+/*
+ * Copyright (C) 2014 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.QtaguidItem;
+
+import java.util.List;
+
+/**
+ * An {@link IParser} to handle the output of {@code xt_qtaguid}.
+ */
+public class QtaguidParser implements IParser {
+
+    /**
+     * Parses the output of "cat /proc/net/xt_qtaguid/stats".
+     * This method only parses total received bytes and total sent bytes per user.
+     *
+     * xt_qtaguid contains network usage per uid in simple space separated format.
+     * The first row of the output is description, and actual data follow. Example:
+     *   IDX IFACE ACCT_TAG_HEX UID_TAG_INT CNT_SET RX_BYTES RX_PACKETS TX_BYTES ... (omitted)
+     *   2 wlan0 0x0 0 0 669013 7534 272120 ...
+     *   3 wlan0 0x0 0 1 0 0 0 ...
+     *   4 wlan0 0x0 1000 0 104010 860 135166 ...
+     *   ...
+     */
+    @Override
+    public QtaguidItem parse(List<String> lines) {
+        QtaguidItem item = new QtaguidItem();
+        for (String line : lines) {
+            String[] columns = line.split(" ", -1);
+            if (columns.length < 8 || columns[0].equals("IDX")) {
+                continue;
+            }
+
+            try {
+                int uid = Integer.parseInt(columns[3]);
+                int rxBytes = Integer.parseInt(columns[5]);
+                int txBytes = Integer.parseInt(columns[7]);
+
+                if (item.contains(uid)) {
+                    item.updateRow(uid, rxBytes, txBytes);
+                } else {
+                    item.addRow(uid, rxBytes, txBytes);
+                }
+            } catch (NumberFormatException e) {
+                // ignore
+            }
+        }
+
+        return item;
+    }
+}

tests/src/com/android/loganalysis/parser/QtaguidParserTest.java

+/*
+ * 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.loganalysis.parser;
+
+import com.android.loganalysis.item.QtaguidItem;
+
+import junit.framework.TestCase;
+
+import org.json.JSONArray;
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class QtaguidParserTest extends TestCase {
+
+    public void testSingleLine() {
+        List<String> input = Arrays.asList("12 wlan0 0x0 10009 0 111661 353 258252 484 111661 353 0 0 0 0 258252 484 0 0 0 0");
+
+        QtaguidItem item = new QtaguidParser().parse(input);
+
+        assertEquals(1, item.getUids().size());
+        assertEquals(111661, item.getRxBytes(10009));
+        assertEquals(258252, item.getTxBytes(10009));
+    }
+
+    public void testMalformedLine() {
+        List<String> input = Arrays.asList("a b c d", "a b c d e f g h i j k l");
+
+        QtaguidItem item = new QtaguidParser().parse(input);
+
+        assertEquals(0, item.getUids().size());
+    }
+
+    public void testMultipleLines() {
+        List <String> input = Arrays.asList(
+                "IDX IFACE ACCT_TAG_HEX UID_TAG_INT CNT_SET RX_BYTES RX_PACKETS TX_BYTES TX_PACKETS " +
+                "rx_tcp_bytes rx_tcp_packets rx_udp_bytes rx_udp_packets rx_other_bytes rx_other_packets " +
+                "tx_tcp_bytes tx_tcp_packets tx_udp_bytes tx_udp_packets tx_other_bytes tx_other_packets",
+                "2 wlan0 0x0 0 0 669013 7534 272120 2851 161253 1606 203916 1228 303844 4700 123336 998 108412 1268 40372 585",
+                "3 wlan0 0x0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0",
+                "4 wlan0 0x0 1000 0 104010 860 135166 2090 2304 23 101706 837 0 0 3774 36 85344 843 46048 1211",
+                "5 wlan0 0x0 1000 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0",
+                "6 wlan0 0x0 1020 0 68666 162 110566 260 0 0 68666 162 0 0 0 0 110566 260 0 0",
+                "7 wlan0 0x0 1020 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0",
+                "8 wlan0 0x0 10000 0 826063 2441 486365 2402 725175 2202 100888 239 0 0 427377 2261 58988 141 0 0",
+                "9 wlan0 0x0 10000 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0",
+                "10 wlan0 0x0 10007 0 0 0 640 10 0 0 0 0 0 0 640 10 0 0 0 0",
+                "11 wlan0 0x0 10007 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0",
+                "12 wlan0 0x0 10009 0 17773800 18040 6588861 16079 17773800 18040 0 0 0 0 6588861 16079 0 0 0 0",
+                "13 wlan0 0x0 10009 1 6392090 5092 109907 1235 6392090 5092 0 0 0 0 109907 1235 0 0 0 0",
+                "14 wlan0 0x0 10010 0 33397 41 5902 59 33397 41 0 0 0 0 5902 59 0 0 0 0",
+                "15 wlan0 0x0 10010 1 14949782 13336 1099914 12201 14949782 13336 0 0 0 0 1099914 12201 0 0 0 0",
+                "16 wlan0 0x0 10014 0 54459314 43660 1000730 9780 54459314 43660 0 0 0 0 1000730 9780 0 0 0 0",
+                "17 wlan0 0x0 10014 1 5411545 4459 416719 4154 5411545 4459 0 0 0 0 416719 4154 0 0 0 0",
+                "18 wlan0 0x0 10024 0 98775055 80471 3929490 45504 98775055 80471 0 0 0 0 3929490 45504 0 0 0 0",
+                "19 wlan0 0x0 10024 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0");
+        QtaguidItem item = new QtaguidParser().parse(input);
+        assertEquals(9, item.getUids().size());
+        assertEquals(24165890, item.getRxBytes(10009));
+        assertEquals(6698768, item.getTxBytes(10009));
+    }
+}