gistfile1.java

/**
     * Processes cpu load information from bugreport. Updates mDataset with the
     * new data.
     *
     * @param br Reader providing the content
     * @throws IOException if error reading file
     */
    void readCpuDataset(BufferedReader br) throws IOException {
        Pattern pattern = Pattern
                .compile("(\\S+): (\\S+)% = (.+)% user . (.+)% kernel");

        while (true) {
            String line = br.readLine();
            if (line == null || line.startsWith("DUMP OF SERVICE")) {
                // Done, or moved on to the next service
                break;
            }
            if (line.startsWith("Load:")) {
                mLabel.setText(line);
                continue;
            }
            Matcher m = pattern.matcher(line);
            if (m.find()) {
                String name = m.group(1);
                long both = Long.parseLong(m.group(2));
                long user = Long.parseLong(m.group(3));
                long kernel = Long.parseLong(m.group(4));
                if ("TOTAL".equals(name)) {
                    if (both < 100) {
                        mDataset.setValue("Idle", (100 - both));
                    }
                } else {
                    // Try to make graphs more useful even with rounding;
                    // log often has 0% user + 0% kernel = 1% total
                    // We arbitrarily give extra to kernel
                    if (user > 0) {
                        mDataset.setValue(name + " (user)", user);
                    }
                    if (kernel > 0) {
                        mDataset.setValue(name + " (kernel)" , both - user);
                    }
                    if (user == 0 && kernel == 0 && both > 0) {
                        mDataset.setValue(name, both);
                    }
                }
            }
        }
    }