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/*
* Fernflower - The Analytical Java Decompiler
* http://www.reversed-java.com
*
* (C) 2008 - 2010, Stiver
*
* This software is NEITHER public domain NOR free software
* as per GNU License. See license.txt for more details.
*
* This software is distributed WITHOUT ANY WARRANTY; without
* even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE.
*/
package org.jetbrains.java.decompiler.main.collectors;
import java.io.BufferedWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map.Entry;
import org.jetbrains.java.decompiler.main.ClassesProcessor;
import org.jetbrains.java.decompiler.main.DecompilerContext;
import org.jetbrains.java.decompiler.main.ClassesProcessor.ClassNode;
import org.jetbrains.java.decompiler.struct.StructContext;
public class ImportCollector {
private static final String JAVA_LANG_PACKAGE = "java.lang";
private HashMap<String, String> mapSimpleNames = new HashMap<String, String>();
private HashSet<String> setNotImportedNames = new HashSet<String>();
private String currentPackageSlash = "";
private String currentPackagePoint = "";
public ImportCollector(ClassNode root) {
String clname = root.classStruct.qualifiedName;
int index = clname.lastIndexOf("/");
if(index >= 0) {
currentPackageSlash = clname.substring(0, index);
currentPackagePoint = currentPackageSlash.replace('/', '.');
currentPackageSlash += "/";
}
}
public String getShortName(String fullname) {
return getShortName(fullname, true);
}
public String getShortName(String fullname, boolean imported) {
ClassesProcessor clproc = DecompilerContext.getClassprocessor();
ClassNode node = clproc.getMapRootClasses().get(fullname.replace('.', '/'));
String retname = null;
if(node != null && node.classStruct.isOwn()) {
retname = node.simpleName;
while(node.parent != null && node.type == ClassNode.CLASS_MEMBER) {
retname = node.parent.simpleName+"."+retname;
node = node.parent;
}
if(node.type == ClassNode.CLASS_ROOT) {
fullname = node.classStruct.qualifiedName;
fullname = fullname.replace('/', '.');
} else {
return retname;
}
} else if(node == null || !node.classStruct.isOwn()) {
fullname = fullname.replace('$', '.');
}
String nshort = fullname;
String npackage = "";
int lastpoint = fullname.lastIndexOf(".");
if(lastpoint >= 0) {
nshort = fullname.substring(lastpoint+1);
npackage = fullname.substring(0, lastpoint);
}
StructContext context = DecompilerContext.getStructcontext();
boolean existsDefaultClass = (context.getClass(currentPackageSlash+nshort) != null
&& !npackage.equals(currentPackagePoint)) // current package
|| (context.getClass(nshort) != null); // default package
if(existsDefaultClass ||
(mapSimpleNames.containsKey(nshort) && !npackage.equals(mapSimpleNames.get(nshort)))) {
return fullname;
} else if(!mapSimpleNames.containsKey(nshort)) {
mapSimpleNames.put(nshort, npackage);
if(!imported) {
setNotImportedNames.add(nshort);
}
}
return retname==null?nshort:retname;
}
public void writeImports(BufferedWriter writer) throws IOException {
for(String s: packImports()) {
writer.write("import ");
writer.write(s);
writer.write(";");
writer.write(DecompilerContext.getNewLineSeparator());
}
}
private List<String> packImports() {
List<Entry<String, String>> lst = new ArrayList<Entry<String, String>>(mapSimpleNames.entrySet());
Collections.sort(lst, new Comparator<Entry<String, String>>() {
public int compare(Entry<String, String> par0, Entry<String, String> par1) {
int res = par0.getValue().compareTo(par1.getValue());
if(res == 0) {
res = par0.getKey().compareTo(par1.getKey());
}
return res;
}
});
List<String> res = new ArrayList<String>();
for(Entry<String, String> ent: lst) {
if(!setNotImportedNames.contains(ent.getKey()) // not the current class or one of the nested ones. Also not the empty package.
&& !JAVA_LANG_PACKAGE.equals(ent.getValue())
&& ent.getValue().length() > 0) {
String imp = ent.getValue()+"."+ent.getKey();
res.add(imp);
}
}
return res;
}
}
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