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/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* 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 org.jetbrains.java.decompiler.struct;
import org.jetbrains.java.decompiler.main.DecompilerContext;
import org.jetbrains.java.decompiler.main.extern.IResultSaver;
import org.jetbrains.java.decompiler.struct.lazy.LazyLoader;
import org.jetbrains.java.decompiler.util.DataInputFullStream;
import org.jetbrains.java.decompiler.util.InterpreterUtil;
import java.io.File;
import java.io.IOException;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.jar.JarFile;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
public class StructContext {
private final IResultSaver saver;
private final IDecompiledData decompiledData;
private final LazyLoader loader;
private final Map<String, ContextUnit> units = new HashMap<String, ContextUnit>();
private final Map<String, StructClass> classes = new HashMap<String, StructClass>();
public StructContext(IResultSaver saver, IDecompiledData decompiledData, LazyLoader loader) {
this.saver = saver;
this.decompiledData = decompiledData;
this.loader = loader;
ContextUnit defaultUnit = new ContextUnit(ContextUnit.TYPE_FOLDER, null, "", true, saver, decompiledData);
units.put("", defaultUnit);
}
public StructClass getClass(String name) {
return classes.get(name);
}
public void reloadContext() throws IOException {
for (ContextUnit unit : units.values()) {
for (StructClass cl : unit.getClasses()) {
classes.remove(cl.qualifiedName);
}
unit.reload(loader);
// adjust global class collection
for (StructClass cl : unit.getClasses()) {
classes.put(cl.qualifiedName, cl);
}
}
}
public void saveContext() {
for (ContextUnit unit : units.values()) {
if (unit.isOwn()) {
unit.save();
}
}
}
public void addSpace(File file, boolean isOwn) {
addSpace("", file, isOwn, 0);
}
private void addSpace(String path, File file, boolean isOwn, int level) {
if (file.isDirectory()) {
if (level == 1) path += file.getName();
else if (level > 1) path += "/" + file.getName();
File[] files = file.listFiles();
if (files != null) {
for (int i = files.length - 1; i >= 0; i--) {
addSpace(path, files[i], isOwn, level + 1);
}
}
}
else {
String filename = file.getName();
boolean isArchive = false;
try {
if (filename.endsWith(".jar")) {
isArchive = true;
addArchive(path, file, ContextUnit.TYPE_JAR, isOwn);
}
else if (filename.endsWith(".zip")) {
isArchive = true;
addArchive(path, file, ContextUnit.TYPE_ZIP, isOwn);
}
}
catch (IOException ex) {
String message = "Corrupted archive file: " + file;
DecompilerContext.getLogger().writeMessage(message, ex);
}
if (isArchive) {
return;
}
ContextUnit unit = units.get(path);
if (unit == null) {
unit = new ContextUnit(ContextUnit.TYPE_FOLDER, null, path, isOwn, saver, decompiledData);
units.put(path, unit);
}
if (filename.endsWith(".class")) {
try {
DataInputFullStream in = loader.getClassStream(file.getAbsolutePath(), null);
try {
StructClass cl = new StructClass(in, isOwn, loader);
classes.put(cl.qualifiedName, cl);
unit.addClass(cl, filename);
loader.addClassLink(cl.qualifiedName, new LazyLoader.Link(LazyLoader.Link.CLASS, file.getAbsolutePath(), null));
}
finally {
in.close();
}
}
catch (IOException ex) {
String message = "Corrupted class file: " + file;
DecompilerContext.getLogger().writeMessage(message, ex);
}
}
else {
unit.addOtherEntry(file.getAbsolutePath(), filename);
}
}
}
private void addArchive(String path, File file, int type, boolean isOwn) throws IOException {
@SuppressWarnings("IOResourceOpenedButNotSafelyClosed")
ZipFile archive = type == ContextUnit.TYPE_JAR ? new JarFile(file) : new ZipFile(file);
try {
Enumeration<? extends ZipEntry> entries = archive.entries();
while (entries.hasMoreElements()) {
ZipEntry entry = entries.nextElement();
ContextUnit unit = units.get(path + "/" + file.getName());
if (unit == null) {
unit = new ContextUnit(type, path, file.getName(), isOwn, saver, decompiledData);
if (type == ContextUnit.TYPE_JAR) {
unit.setManifest(((JarFile)archive).getManifest());
}
units.put(path + "/" + file.getName(), unit);
}
String name = entry.getName();
if (!entry.isDirectory()) {
if (name.endsWith(".class")) {
byte[] bytes = InterpreterUtil.getBytes(archive, entry);
StructClass cl = new StructClass(bytes, isOwn, loader);
classes.put(cl.qualifiedName, cl);
unit.addClass(cl, name);
loader.addClassLink(cl.qualifiedName, new LazyLoader.Link(LazyLoader.Link.ENTRY, file.getAbsolutePath(), name));
}
else {
unit.addOtherEntry(file.getAbsolutePath(), name);
}
}
else {
unit.addDirEntry(name);
}
}
}
finally {
archive.close();
}
}
public Map<String, StructClass> getClasses() {
return classes;
}
}
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