Add cpuinfo log collector to AUPT

Change-Id: I1daa01a9d1312c7356667ca80909487b9ce5df5c

1 files changed, 123 insertions, 0 deletions

diff --git a/src/com/android/loganalysis/item/CpuInfoItem.java b/src/com/android/loganalysis/item/CpuInfoItem.java
new file mode 100644
index 0000000..896f368
--- /dev/null
+++ b/src/com/android/loganalysis/item/CpuInfoItem.java
@@ -0,0 +1,123 @@
+/*
+ * 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.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 cpuinfo.
+ */
+public class CpuInfoItem implements IItem {
+    /** Constant for JSON output */
+    public static final String PROCESSES_KEY = "processes";
+    /** Constant for JSON output */
+    public static final String PID_KEY = "pid";
+    /** Constant for JSON output */
+    public static final String PERCENT_KEY = "percent";
+    /** Constant for JSON output */
+    public static final String NAME_KEY = "name";
+
+    private Map<Integer, Row> mRows = new HashMap<Integer, Row>();
+
+    private static class Row {
+        public double percent;
+        public String name;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public IItem merge(IItem other) throws ConflictingItemException {
+        throw new ConflictingItemException("CpuInfo items cannot be merged");
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isConsistent(IItem other) {
+        return false;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public JSONObject toJson() {
+        JSONObject object = new JSONObject();
+        JSONArray processes = new JSONArray();
+        for (int pid : getPids()) {
+            JSONObject proc = new JSONObject();
+            try {
+                proc.put(PID_KEY, pid);
+                proc.put(PERCENT_KEY, getPercent(pid));
+                proc.put(NAME_KEY, getName(pid));
+                processes.put(proc);
+            } catch (JSONException e) {
+                // ignore
+            }
+        }
+
+        try {
+            object.put(PROCESSES_KEY, processes);
+        } catch (JSONException e) {
+            // ignore
+        }
+        return object;
+    }
+
+    /**
+     * Get a set of PIDs seen in the cpuinfo output.
+     */
+    public Set<Integer> getPids() {
+        return mRows.keySet();
+    }
+
+    /**
+     * Add a row from the cpuinfo output to the {@link CpuInfoItem}.
+     *
+     * @param pid The PID from the output
+     * @param percent The percentage of CPU usage by the process
+     * @param name The process name
+     */
+    public void addRow(int pid, double percent, String name) {
+        Row row = new Row();
+        row.percent = percent;
+        row.name = name;
+        mRows.put(pid, row);
+    }
+
+    /**
+     * Get the percentage of CPU usage by a given PID.
+     */
+    public double getPercent(int pid) {
+        return mRows.get(pid).percent;
+    }
+
+    /**
+     * Get the process name for a given PID.
+     */
+    public String getName(int pid) {
+        return mRows.get(pid).name;
+    }
+}