152 lines
4.1 KiB
Java
152 lines
4.1 KiB
Java
/*
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* Copyright 2000-2014 JetBrains s.r.o.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jetbrains.java.decompiler.util;
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import org.jetbrains.java.decompiler.main.DecompilerContext;
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import org.jetbrains.java.decompiler.main.extern.IFernflowerPreferences;
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import java.io.*;
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import java.nio.channels.FileChannel;
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import java.util.Collection;
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import java.util.HashSet;
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import java.util.List;
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public class InterpreterUtil {
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public static void copyFile(File in, File out) throws IOException {
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FileInputStream inStream = new FileInputStream(in);
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try {
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FileOutputStream outStream = new FileOutputStream(out);
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try {
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FileChannel inChannel = inStream.getChannel();
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FileChannel outChannel = outStream.getChannel();
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// magic number for Windows, 64Mb - 32Kb)
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int maxCount = (64 * 1024 * 1024) - (32 * 1024);
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long size = inChannel.size();
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long position = 0;
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while (position < size) {
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position += inChannel.transferTo(position, maxCount, outChannel);
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}
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}
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finally {
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outStream.close();
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}
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}
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finally {
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inStream.close();
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}
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}
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public static void copyInputStream(InputStream in, OutputStream out) throws IOException {
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byte[] buffer = new byte[1024];
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int len;
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while ((len = in.read(buffer)) >= 0) {
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out.write(buffer, 0, len);
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}
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}
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public static String getIndentString(int length) {
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String indent = (String)DecompilerContext.getProperty(IFernflowerPreferences.INDENT_STRING);
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StringBuilder buf = new StringBuilder();
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while (length-- > 0) {
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buf.append(indent);
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}
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return buf.toString();
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}
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public static boolean equalSets(Collection<?> c1, Collection<?> c2) {
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if (c1 == null) {
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return c2 == null;
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}
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else if (c2 == null) {
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return false;
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}
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if (c1.size() != c2.size()) {
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return false;
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}
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HashSet<Object> set = new HashSet<Object>(c1);
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set.removeAll(c2);
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return (set.size() == 0);
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}
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public static boolean equalObjects(Object first, Object second) {
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return first == null ? second == null : first.equals(second);
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}
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public static boolean equalObjectArrays(Object[] first, Object[] second) {
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if (first == null || second == null) {
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return equalObjects(first, second);
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}
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else {
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if (first.length != second.length) {
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return false;
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}
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for (int i = 0; i < first.length; i++) {
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if (!equalObjects(first[i], second[i])) {
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return false;
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}
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}
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}
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return true;
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}
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public static boolean equalLists(List<?> first, List<?> second) {
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if (first == null) {
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return second == null;
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}
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else if (second == null) {
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return first == null;
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}
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if (first.size() == second.size()) {
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for (int i = 0; i < first.size(); i++) {
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if (!equalObjects(first.get(i), second.get(i))) {
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return false;
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}
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}
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return true;
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}
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return false;
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}
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public static boolean isPrintableUnicode(char c) {
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int t = Character.getType(c);
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return t != Character.UNASSIGNED && t != Character.LINE_SEPARATOR && t != Character.PARAGRAPH_SEPARATOR &&
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t != Character.CONTROL && t != Character.FORMAT && t != Character.PRIVATE_USE && t != Character.SURROGATE;
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}
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public static String charToUnicodeLiteral(int value) {
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String sTemp = Integer.toHexString(value);
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sTemp = ("0000" + sTemp).substring(sTemp.length());
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return "\\u" + sTemp;
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}
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public static String makeUniqueKey(String name, String descriptor) {
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return name + " " + descriptor;
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}
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}
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