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/*
* Copyright 2007 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.tonicsystems.jarjar;
import java.util.*;
import java.util.regex.Pattern;
import org.objectweb.asm.*;
import org.objectweb.asm.commons.*;
class PackageRemapper extends Remapper {
private static final String RESOURCE_SUFFIX = "RESOURCE";
private static final Pattern ARRAY_FOR_NAME_PATTERN =
Pattern.compile("\\[L[\\p{javaJavaIdentifierPart}\\.]+?;");
private final List<Wildcard> wildcards;
private final Map<String, String> typeCache = new HashMap<String, String>();
private final Map<String, String> pathCache = new HashMap<String, String>();
private final Map<Object, String> valueCache = new HashMap<Object, String>();
private final boolean verbose;
public PackageRemapper(List<Rule> ruleList, boolean verbose) {
this.verbose = verbose;
wildcards = PatternElement.createWildcards(ruleList);
}
// also used by KeepProcessor
static boolean isArrayForName(String value) {
return ARRAY_FOR_NAME_PATTERN.matcher(value).matches();
}
public String map(String key) {
String s = typeCache.get(key);
if (s == null) {
s = replaceHelper(key);
if (key.equals(s)) {
s = null;
}
typeCache.put(key, s);
}
return s;
}
public String mapPath(String path) {
String s = pathCache.get(path);
if (s == null) {
s = path;
int slash = s.lastIndexOf('/');
String end;
if (slash < 0) {
end = s;
s = RESOURCE_SUFFIX;
} else {
end = s.substring(slash + 1);
s = s.substring(0, slash + 1) + RESOURCE_SUFFIX;
}
boolean absolute = s.startsWith("/");
if (absolute) {
s = s.substring(1);
}
s = replaceHelper(s);
if (absolute) {
s = "/" + s;
}
if (s.indexOf(RESOURCE_SUFFIX) < 0) {
return path;
}
s = s.substring(0, s.length() - RESOURCE_SUFFIX.length()) + end;
pathCache.put(path, s);
}
return s;
}
public Object mapValue(Object value) {
if (value instanceof String) {
String s = valueCache.get(value);
if (s == null) {
s = (String) value;
if (isArrayForName(s)) {
String desc1 = s.replace('.', '/');
String desc2 = mapDesc(desc1);
if (!desc2.equals(desc1)) {
return desc2.replace('/', '.');
}
} else {
s = mapPath(s);
if (s.equals(value)) {
boolean hasDot = s.indexOf('.') >= 0;
boolean hasSlash = s.indexOf('/') >= 0;
if (!(hasDot && hasSlash)) {
if (hasDot) {
s = replaceHelper(s.replace('.', '/')).replace('/', '.');
} else {
s = replaceHelper(s);
}
}
}
}
valueCache.put(value, s);
}
// TODO: add back class name to verbose message
if (verbose && !s.equals(value)) {
System.err.println("Changed \"" + value + "\" -> \"" + s + "\"");
}
return s;
} else {
return super.mapValue(value);
}
}
private String replaceHelper(String value) {
for (Wildcard wildcard : wildcards) {
String test = wildcard.replace(value);
if (test != null) {
return test;
}
}
return value;
}
}
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