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/*
* 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.MemoryHealthItem;
import java.io.BufferedReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* Parses the memory health file generated by the tests.
*/
public class MemoryHealthParser implements IParser {
private Map<String, Map<String, Long>> mForeground;
private Map<String, Map<String, Long>> mBackground;
private static final Map<String, String> SECTION_MAPPINGS;
static {
Map<String, String> mappings = new HashMap<String, String>();
mappings.put("Average Dalvik Heap", MemoryHealthItem.DALVIK_AVG);
mappings.put("Average Native Heap", MemoryHealthItem.NATIVE_AVG);
mappings.put("Average PSS", MemoryHealthItem.PSS_AVG);
mappings.put("Peak Dalvik Heap", MemoryHealthItem.DALVIK_PEAK);
mappings.put("Peak Native Heap", MemoryHealthItem.NATIVE_PEAK);
mappings.put("Peak PSS", MemoryHealthItem.PSS_PEAK);
mappings.put("Average Summary Java Heap", MemoryHealthItem.SUMMARY_JAVA_HEAP_AVG);
mappings.put("Average Summary Native Heap", MemoryHealthItem.SUMMARY_NATIVE_HEAP_AVG);
mappings.put("Average Summary Code", MemoryHealthItem.SUMMARY_CODE_AVG);
mappings.put("Average Summary Stack", MemoryHealthItem.SUMMARY_STACK_AVG);
mappings.put("Average Summary Graphics", MemoryHealthItem.SUMMARY_GRAPHICS_AVG);
mappings.put("Average Summary Other", MemoryHealthItem.SUMMARY_OTHER_AVG);
mappings.put("Average Summary System", MemoryHealthItem.SUMMARY_SYSTEM_AVG);
mappings.put("Average Summary Overall Pss", MemoryHealthItem.SUMMARY_OVERALL_PSS_AVG);
SECTION_MAPPINGS = Collections.unmodifiableMap(mappings);
}
private static final Pattern COUNT_PATTERN = Pattern.compile("^Count (\\d+)$");
private static final Pattern METRIC_PATTERN = Pattern.compile("^([^:]+): (\\d+)$");
private static final Pattern PROCESS_PATTERN = Pattern.compile("^\\S+$");
@Override
/**
* {@inheritDoc}
*/
public MemoryHealthItem parse(List<String> lines) {
Map<String, Map<String, Long>> currentSection = null;
Map<String, Long> currentProcess = new HashMap<String, Long>();
String processName = null;
for (String line : lines) {
if (line.contains("Foreground")) { // switch to parsing foreground
mForeground = new HashMap<String, Map<String, Long>>();
currentSection = mForeground;
} else if (line.contains("Background")) { //switch to parsing background
mBackground= new HashMap<String, Map<String, Long>>();
currentSection = mBackground;
} else if (COUNT_PATTERN.matcher(line).matches()) {
// commit current process once we get to count
currentProcess.put("count", parseLong(line));
currentSection.put(processName, currentProcess);
} else if (METRIC_PATTERN.matcher(line).matches()) {
Matcher m = METRIC_PATTERN.matcher(line);
m.matches();
Long value = parseLong(m.group(2));
String key = SECTION_MAPPINGS.get(m.group(1));
if (key == null) {
continue;
}
currentProcess.put(key, value);
} else if (PROCESS_PATTERN.matcher(line).matches()) {
processName = line;
currentProcess = new HashMap<String, Long>();
}
}
return new MemoryHealthItem(mForeground, mBackground);
}
private long parseLong(String str) {
try {
return Long.parseLong(str);
} catch (NumberFormatException e) {
return 0;
}
}
public MemoryHealthItem parse(BufferedReader reader) throws IOException {
List<String> lines = new ArrayList<String>();
String line = reader.readLine();
while (line != null) {
lines.add(line);
line = reader.readLine();
}
return parse(lines);
}
}
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