com.android.dx.command.dump.ClassDumper Maven / Gradle / Ivy
/*
* Copyright (C) 2007 The Android Open Source Project
*
* 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.android.dx.command.dump;
import com.android.dx.cf.direct.DirectClassFile;
import com.android.dx.cf.direct.StdAttributeFactory;
import com.android.dx.util.ByteArray;
import java.io.PrintStream;
/**
* Utility to dump the contents of class files in a human-friendly form.
*/
public final class ClassDumper
extends BaseDumper {
/**
* Dumps the given array, interpreting it as a class file.
*
* @param bytes {@code non-null;} bytes of the (alleged) class file
* @param out {@code non-null;} where to dump to
* passed in as <= 0
* @param filePath the file path for the class, excluding any base
* directory specification
* @param args bag of commandline arguments
*/
public static void dump(byte[] bytes, PrintStream out,
String filePath, Args args) {
ClassDumper cd =
new ClassDumper(bytes, out, filePath, args);
cd.dump();
}
/**
* Constructs an instance. This class is not publicly instantiable.
* Use {@link #dump}.
*/
private ClassDumper(byte[] bytes, PrintStream out,
String filePath, Args args) {
super(bytes, out, filePath, args);
}
/**
* Does the dumping.
*/
public void dump() {
byte[] bytes = getBytes();
ByteArray ba = new ByteArray(bytes);
DirectClassFile cf =
new DirectClassFile(ba, getFilePath(), getStrictParse());
cf.setAttributeFactory(StdAttributeFactory.THE_ONE);
cf.setObserver(this);
cf.getMagic(); // Force parsing to happen.
int at = getAt();
if (at != bytes.length) {
parsed(ba, at, bytes.length - at, "");
}
}
}