123 lines
4.1 KiB
Java
123 lines
4.1 KiB
Java
/*
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* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* This utils class is been used by test T8003512 which is compiled with Java 6
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* only features. So if this class is modified, it should be so using Java 6
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* features only.
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*/
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import java.io.BufferedInputStream;
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import java.io.BufferedOutputStream;
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import java.io.Closeable;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.io.PrintStream;
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public class Utils {
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static final sun.tools.jar.Main jarTool =
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new sun.tools.jar.Main(System.out, System.err, "jar-tool");
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static final com.sun.tools.javac.Main javac =
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new com.sun.tools.javac.Main();
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private Utils(){}
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public static boolean compile(String... args) {
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return javac.compile(args) == 0;
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}
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public static void createClassFile(File javaFile, File superClass,
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boolean delete) throws IOException {
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createJavaFile(javaFile, superClass);
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if (!compile(javaFile.getName())) {
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throw new RuntimeException("compile failed unexpectedly");
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}
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if (delete) javaFile.delete();
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}
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public static void createJavaFile(File outFile) throws IOException {
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createJavaFile(outFile, null);
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}
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public static void createJavaFile(File outFile, File superClass) throws IOException {
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String srcStr = "public class " + getSimpleName(outFile) + " ";
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if (superClass != null) {
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srcStr = srcStr.concat("extends " + getSimpleName(superClass) + " ");
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}
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srcStr = srcStr.concat("{}");
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try (PrintStream ps = new PrintStream(new FileOutputStream(outFile))) {
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ps.println(srcStr);
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}
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}
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static String getClassFileName(File javaFile) {
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return javaFile.getName().endsWith(".java")
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? javaFile.getName().replace(".java", ".class")
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: null;
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}
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static String getSimpleName(File inFile) {
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String fname = inFile.getName();
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return fname.substring(0, fname.indexOf("."));
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}
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public static void copyStream(InputStream in, OutputStream out) throws IOException {
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byte[] buf = new byte[8192];
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int n = in.read(buf);
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while (n > 0) {
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out.write(buf, 0, n);
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n = in.read(buf);
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}
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}
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public static void close(Closeable c) {
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if (c != null) {
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try {
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c.close();
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} catch (IOException ignore) {}
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}
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}
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public static void deleteFile(File f) {
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if (!f.delete()) {
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throw new RuntimeException("could not delete file: " + f.getAbsolutePath());
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}
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}
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public static void cat(File output, File... files) throws IOException {
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try (BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(output))) {
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for (File file : files) {
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try (BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file))) {
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copyStream(bis, bos);
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}
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}
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}
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}
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}
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