/**
* 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.strings;
import com.tonicsystems.jarjar.classpath.ClassPath;
import com.tonicsystems.jarjar.classpath.ClassPathArchive;
import com.tonicsystems.jarjar.classpath.ClassPathResource;
import com.tonicsystems.jarjar.util.IoUtil;
import com.tonicsystems.jarjar.util.RuntimeIOException;
import java.io.IOException;
import java.io.InputStream;
import javax.annotation.Nonnull;
import org.objectweb.asm.ClassReader;
public class StringDumper {
public void run(Appendable out, ClassPath classPath) throws IOException {
StringReader stringReader = new DumpStringReader(out);
for (ClassPathArchive classPathArchive : classPath) {
for (ClassPathResource classPathResource : classPathArchive) {
InputStream in = classPathResource.openStream();
try {
new ClassReader(in).accept(stringReader, 0);
} catch (Exception e) {
System.err.println("Error reading " + classPathResource + ": " + e.getMessage());
} finally {
in.close();
}
IoUtil.flush(out);
}
}
}
private static class DumpStringReader extends StringReader {
private final Appendable out;
private String className;
public DumpStringReader(@Nonnull Appendable out) {
this.out = out;
}
@Override
public void visitString(String className, String value, int line) {
if (value.length() > 0) {
try {
if (!className.equals(this.className)) {
this.className = className;
out.append(className.replace('/', '.'));
}
out.append("\t");
if (line >= 0)
out.append(line + ": ");
out.append(escapeStringLiteral(value));
out.append("\n");
} catch (IOException e) {
throw new RuntimeIOException(e);
}
}
}
};
@Nonnull
private static String escapeStringLiteral(@Nonnull String value) {
StringBuilder sb = new StringBuilder();
sb.append("\"");
for (int i = 0, size = value.length(); i < size; i++) {
char ch = value.charAt(i);
switch (ch) {
case '\n':
sb.append("\\n");
break;
case '\r':
sb.append("\\r");
break;
case '\b':
sb.append("\\b");
break;
case '\f':
sb.append("\\f");
break;
case '\t':
sb.append("\\t");
break;
case '\"':
sb.append("\\\"");
break;
case '\\':
sb.append("\\\\");
break;
default:
sb.append(ch);
}
}
sb.append("\"");
return sb.toString();
}
}