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The Profiles.java Java example source code
/*
* Copyright (c) 2006, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.tools.javac.sym;
import java.io.BufferedInputStream;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import java.util.TreeMap;
import java.util.TreeSet;
import com.sun.tools.javac.util.Assert;
/**
* Provide details about profile contents.
*
* <p>This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own
* risk. This code and its internal interfaces are subject to change
* or deletion without notice.</b>
*/
public abstract class Profiles {
// for debugging
public static void main(String[] args) throws IOException {
Profiles p = Profiles.read(new File(args[0]));
if (args.length >= 2) {
Map<Integer,Set lists = new TreeMap>();
for (int i = 1; i <= 4; i++)
lists.put(i, new TreeSet<String>());
File rt_jar_lst = new File(args[1]);
for (String line: Files.readAllLines(rt_jar_lst.toPath(), Charset.defaultCharset())) {
if (line.endsWith(".class")) {
String type = line.substring(0, line.length() - 6);
int profile = p.getProfile(type);
for (int i = profile; i <= 4; i++)
lists.get(i).add(type);
}
}
for (int i = 1; i <= 4; i++) {
BufferedWriter out = new BufferedWriter(new FileWriter(i + ".txt"));
try {
for (String type: lists.get(i)) {
out.write(type);
out.newLine();
}
} finally {
out.close();
}
}
}
}
public static Profiles read(File file) throws IOException {
BufferedInputStream in = new BufferedInputStream(new FileInputStream(file));
try {
Properties p = new Properties();
p.load(in);
if (p.containsKey("java/lang/Object"))
return new SimpleProfiles(p);
else
return new MakefileProfiles(p);
} finally {
in.close();
}
}
public abstract int getProfileCount();
public abstract int getProfile(String typeName);
public abstract Set<String> getPackages(int profile);
private static class MakefileProfiles extends Profiles {
static class Package {
final Package parent;
final String name;
Map<String, Package> subpackages = new TreeMap();
int profile;
Map<String, Integer> includedTypes = new TreeMap();
Map<String, Integer> excludedTypes = new TreeMap();
Package(Package parent, String name) {
this.parent = parent;
this.name = name;
}
int getProfile() {
return (parent == null) ? profile : Math.max(parent.getProfile(), profile);
}
int getProfile(String simpleTypeName) {
Integer i;
if ((i = includedTypes.get(simpleTypeName)) != null)
return i;
if ((i = includedTypes.get("*")) != null)
return i;
if ((i = excludedTypes.get(simpleTypeName)) != null)
return i + 1;
if ((i = excludedTypes.get("*")) != null)
return i + 1;
return getProfile();
}
String getName() {
return (parent == null) ? name : (parent.getName() + "/" + name);
}
void getPackages(int profile, Set<String> results) {
int prf = getProfile();
if (prf != 0 && profile >= prf)
results.add(getName());
for (Package pkg: subpackages.values())
pkg.getPackages(profile, results);
}
}
final Map<String, Package> packages = new TreeMap();
final int maxProfile = 4; // Three compact profiles plus full JRE
MakefileProfiles(Properties p) {
for (int profile = 1; profile <= maxProfile; profile++) {
String prefix = (profile < maxProfile ? "PROFILE_" + profile : "FULL_JRE");
String inclPackages = p.getProperty(prefix + "_RTJAR_INCLUDE_PACKAGES");
if (inclPackages == null)
break;
for (String pkg: inclPackages.substring(1).trim().split("\\s+")) {
if (pkg.endsWith("/"))
pkg = pkg.substring(0, pkg.length() - 1);
includePackage(profile, pkg);
}
String inclTypes = p.getProperty(prefix + "_RTJAR_INCLUDE_TYPES");
if (inclTypes != null) {
for (String type: inclTypes.replace("$$", "$").split("\\s+")) {
if (type.endsWith(".class"))
includeType(profile, type.substring(0, type.length() - 6));
}
}
String exclTypes = p.getProperty(prefix + "_RTJAR_EXCLUDE_TYPES");
if (exclTypes != null) {
for (String type: exclTypes.replace("$$", "$").split("\\s+")) {
if (type.endsWith(".class"))
excludeType(profile, type.substring(0, type.length() - 6));
}
}
}
}
@Override
public int getProfileCount() {
return maxProfile;
}
@Override
public int getProfile(String typeName) {
int sep = typeName.lastIndexOf("/");
String packageName = typeName.substring(0, sep);
String simpleName = typeName.substring(sep + 1);
Package p = getPackage(packageName);
return p.getProfile(simpleName);
}
@Override
public Set<String> getPackages(int profile) {
Set<String> results = new TreeSet();
for (Package p: packages.values())
p.getPackages(profile, results);
return results;
}
private void includePackage(int profile, String packageName) {
// System.err.println("include package " + packageName);
Package p = getPackage(packageName);
Assert.check(p.profile == 0);
p.profile = profile;
}
private void includeType(int profile, String typeName) {
// System.err.println("include type " + typeName);
int sep = typeName.lastIndexOf("/");
String packageName = typeName.substring(0, sep);
String simpleName = typeName.substring(sep + 1);
Package p = getPackage(packageName);
Assert.check(!p.includedTypes.containsKey(simpleName));
p.includedTypes.put(simpleName, profile);
}
private void excludeType(int profile, String typeName) {
// System.err.println("exclude type " + typeName);
int sep = typeName.lastIndexOf("/");
String packageName = typeName.substring(0, sep);
String simpleName = typeName.substring(sep + 1);
Package p = getPackage(packageName);
Assert.check(!p.excludedTypes.containsKey(simpleName));
p.excludedTypes.put(simpleName, profile);
}
private Package getPackage(String packageName) {
int sep = packageName.lastIndexOf("/");
Package parent;
Map<String, Package> parentSubpackages;
String simpleName;
if (sep == -1) {
parent = null;
parentSubpackages = packages;
simpleName = packageName;
} else {
parent = getPackage(packageName.substring(0, sep));
parentSubpackages = parent.subpackages;
simpleName = packageName.substring(sep + 1);
}
Package p = parentSubpackages.get(simpleName);
if (p == null) {
parentSubpackages.put(simpleName, p = new Package(parent, simpleName));
}
return p;
}
}
private static class SimpleProfiles extends Profiles {
private final Map<String, Integer> map;
private final int profileCount;
SimpleProfiles(Properties p) {
int max = 0;
map = new HashMap<String, Integer>();
for (Map.Entry<Object,Object> e: p.entrySet()) {
String typeName = (String) e.getKey();
int profile = Integer.valueOf((String) e.getValue());
map.put(typeName, profile);
max = Math.max(max, profile);
}
profileCount = max;
}
@Override
public int getProfileCount() {
return profileCount;
}
@Override
public int getProfile(String typeName) {
return map.get(typeName);
}
@Override
public Set<String> getPackages(int profile) {
Set<String> results = new TreeSet();
for (Map.Entry<String,Integer> e: map.entrySet()) {
String tn = e.getKey();
int prf = e.getValue();
int sep = tn.lastIndexOf("/");
if (sep > 0 && profile >= prf)
results.add(tn);
}
return results;
}
}
}
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