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/*
* Copyright (C) 2010 Google Inc.
*
* 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.google.caliper;
import com.google.common.collect.ImmutableMultimap;
import com.google.common.collect.ImmutableMultiset;
import com.google.common.collect.Multimap;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public final class EnvironmentGetter {
public Environment getEnvironmentSnapshot() {
Map<String, String> propertyMap = new HashMap<String, String>();
@SuppressWarnings("unchecked")
Map<String, String> sysProps = (Map<String, String>) (Map) System.getProperties();
// Sometimes java.runtime.version is more descriptive than java.version
String version = sysProps.get("java.version");
String alternateVersion = sysProps.get("java.runtime.version");
if (alternateVersion != null && alternateVersion.length() > version.length()) {
version = alternateVersion;
}
propertyMap.put("jre.version", version);
propertyMap.put("jre.vmname", sysProps.get("java.vm.name"));
propertyMap.put("jre.vmversion", sysProps.get("java.vm.version"));
propertyMap.put("jre.availableProcessors",
Integer.toString(Runtime.getRuntime().availableProcessors()));
String osName = sysProps.get("os.name");
propertyMap.put("os.name", osName);
propertyMap.put("os.version", sysProps.get("os.version"));
propertyMap.put("os.arch", sysProps.get("os.arch"));
try {
propertyMap.put("host.name", InetAddress.getLocalHost().getHostName());
} catch (UnknownHostException ignored) {
}
if (osName.equals("Linux")) {
getLinuxEnvironment(propertyMap);
}
return new Environment(propertyMap);
}
private void getLinuxEnvironment(Map<String, String> propertyMap) {
// the following probably doesn't work on ALL linux
Multimap<String, String> cpuInfo = propertiesFromLinuxFile("/proc/cpuinfo");
propertyMap.put("host.cpus", Integer.toString(cpuInfo.get("processor").size()));
String s = "cpu cores";
propertyMap.put("host.cpu.cores", describe(cpuInfo, s));
propertyMap.put("host.cpu.names", describe(cpuInfo, "model name"));
propertyMap.put("host.cpu.cachesize", describe(cpuInfo, "cache size"));
Multimap<String, String> memInfo = propertiesFromLinuxFile("/proc/meminfo");
// TODO redo memInfo.toString() so we don't get square brackets
propertyMap.put("host.memory.physical", memInfo.get("MemTotal").toString());
propertyMap.put("host.memory.swap", memInfo.get("SwapTotal").toString());
getAndroidEnvironment(propertyMap);
}
private void getAndroidEnvironment(Map<String, String> propertyMap) {
try {
Map<String, String> map = getAndroidProperties();
String manufacturer = map.get("ro.product.manufacturer");
String device = map.get("ro.product.device");
propertyMap.put("android.device", manufacturer + " " + device); // "Motorola sholes"
String brand = map.get("ro.product.brand");
String model = map.get("ro.product.model");
propertyMap.put("android.model", brand + " " + model); // "verizon Droid"
String release = map.get("ro.build.version.release");
String id = map.get("ro.build.id");
propertyMap.put("android.release", release + " " + id); // "Gingerbread GRH07B"
} catch (IOException ignored) {
}
}
private static String describe(Multimap<String, String> cpuInfo, String s) {
Collection<String> strings = cpuInfo.get(s);
// TODO redo the ImmutableMultiset.toString() call so we don't get square brackets
return (strings.size() == 1)
? strings.iterator().next()
: ImmutableMultiset.copyOf(strings).toString();
}
/**
* Returns the key/value pairs from the specified properties-file like
* reader. Unlike standard Java properties files, {@code reader} is allowed
* to list the same property multiple times. Comments etc. are unsupported.
*/
private static Multimap<String, String> propertiesFileToMultimap(Reader reader)
throws IOException {
ImmutableMultimap.Builder<String, String> result = ImmutableMultimap.builder();
BufferedReader in = new BufferedReader(reader);
String line;
while((line = in.readLine()) != null) {
String[] parts = line.split("\\s*\\:\\s*", 2);
if (parts.length == 2) {
result.put(parts[0], parts[1]);
}
}
in.close();
return result.build();
}
private static Multimap<String, String> propertiesFromLinuxFile(String file) {
try {
Process process = Runtime.getRuntime().exec(new String[]{"/bin/cat", file});
return propertiesFileToMultimap(
new InputStreamReader(process.getInputStream(), "ISO-8859-1"));
} catch (IOException e) {
return ImmutableMultimap.of();
}
}
public static void main(String[] args) {
Environment snapshot = new EnvironmentGetter().getEnvironmentSnapshot();
for (Map.Entry<String, String> entry : snapshot.getProperties().entrySet()) {
System.out.println(entry.getKey() + " " + entry.getValue());
}
}
/**
* Android properties are available from adb shell /system/bin/getprop. That
* program prints Android system properties in this format:
* [ro.product.model]: [Droid]
* [ro.product.brand]: [verizon]
*/
private static Map<String, String> getAndroidProperties() throws IOException {
Map<String, String> result = new HashMap<String, String>();
Process process = Runtime.getRuntime().exec(new String[] {"/system/bin/getprop"});
BufferedReader reader = new BufferedReader(
new InputStreamReader(process.getInputStream(), "ISO-8859-1"));
Pattern pattern = Pattern.compile("\\[([^\\]]*)\\]: \\[([^\\]]*)\\]");
String line;
while ((line = reader.readLine()) != null) {
Matcher matcher = pattern.matcher(line);
if (matcher.matches()) {
result.put(matcher.group(1), matcher.group(2));
}
}
return result;
}
}
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