1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/share/jaxws_classes/com/sun/xml/internal/org/jvnet/mimepull/TempFiles.java Wed Jun 12 14:47:09 2013 +0100
1.3 @@ -0,0 +1,144 @@
1.4 +/*
1.5 + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
1.6 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 + *
1.8 + * This code is free software; you can redistribute it and/or modify it
1.9 + * under the terms of the GNU General Public License version 2 only, as
1.10 + * published by the Free Software Foundation. Oracle designates this
1.11 + * particular file as subject to the "Classpath" exception as provided
1.12 + * by Oracle in the LICENSE file that accompanied this code.
1.13 + *
1.14 + * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 + * version 2 for more details (a copy is included in the LICENSE file that
1.18 + * accompanied this code).
1.19 + *
1.20 + * You should have received a copy of the GNU General Public License version
1.21 + * 2 along with this work; if not, write to the Free Software Foundation,
1.22 + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 + *
1.24 + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 + * or visit www.oracle.com if you need additional information or have any
1.26 + * questions.
1.27 + */
1.28 +
1.29 +package com.sun.xml.internal.org.jvnet.mimepull;
1.30 +
1.31 +import java.io.File;
1.32 +import java.io.IOException;
1.33 +import java.lang.reflect.Array;
1.34 +import java.lang.reflect.InvocationTargetException;
1.35 +import java.lang.reflect.Method;
1.36 +import java.util.logging.Level;
1.37 +import java.util.logging.Logger;
1.38 +
1.39 +/**
1.40 + * Helper utility to support jdk <= jdk1.6. After jdk1.6 EOL reflection can be removed and API can be used directly.
1.41 + */
1.42 +class TempFiles {
1.43 +
1.44 + private static final Logger LOGGER = Logger.getLogger(TempFiles.class.getName());
1.45 +
1.46 + private static final Class<?> CLASS_FILES;
1.47 + private static final Class<?> CLASS_PATH;
1.48 + private static final Class<?> CLASS_FILE_ATTRIBUTE;
1.49 + private static final Class<?> CLASS_FILE_ATTRIBUTES;
1.50 + private static final Method METHOD_FILE_TO_PATH;
1.51 + private static final Method METHOD_FILES_CREATE_TEMP_FILE;
1.52 + private static final Method METHOD_FILES_CREATE_TEMP_FILE_WITHPATH;
1.53 +
1.54 + private static final Method METHOD_PATH_TO_FILE;
1.55 +
1.56 + private static boolean useJdk6API;
1.57 +
1.58 + static {
1.59 + useJdk6API = isJdk6();
1.60 +
1.61 + CLASS_FILES = safeGetClass("java.nio.file.Files");
1.62 + CLASS_PATH = safeGetClass("java.nio.file.Path");
1.63 + CLASS_FILE_ATTRIBUTE = safeGetClass("java.nio.file.attribute.FileAttribute");
1.64 + CLASS_FILE_ATTRIBUTES = safeGetClass("[Ljava.nio.file.attribute.FileAttribute;");
1.65 + METHOD_FILE_TO_PATH = safeGetMethod(File.class, "toPath");
1.66 + METHOD_FILES_CREATE_TEMP_FILE = safeGetMethod(CLASS_FILES, "createTempFile", String.class, String.class, CLASS_FILE_ATTRIBUTES);
1.67 + METHOD_FILES_CREATE_TEMP_FILE_WITHPATH = safeGetMethod(CLASS_FILES, "createTempFile", CLASS_PATH, String.class, String.class, CLASS_FILE_ATTRIBUTES);
1.68 + METHOD_PATH_TO_FILE = safeGetMethod(CLASS_PATH, "toFile");
1.69 + }
1.70 +
1.71 + private static boolean isJdk6() {
1.72 + String javaVersion = System.getProperty("java.version");
1.73 + LOGGER.log(Level.FINEST, "Detected java version = {0}", javaVersion);
1.74 + return javaVersion.startsWith("1.6.");
1.75 + }
1.76 +
1.77 + private static Class<?> safeGetClass(String className) {
1.78 + // it is jdk 6 or something failed already before
1.79 + if (useJdk6API) return null;
1.80 + try {
1.81 + return Class.forName(className);
1.82 + } catch (ClassNotFoundException e) {
1.83 + LOGGER.log(Level.SEVERE, "Exception cought", e);
1.84 + LOGGER.log(Level.WARNING, "Class {0} not found. Temp files will be created using old java.io API.", className);
1.85 + useJdk6API = true;
1.86 + return null;
1.87 + }
1.88 + }
1.89 +
1.90 + private static Method safeGetMethod(Class<?> clazz, String methodName, Class<?>... parameterTypes) {
1.91 + // it is jdk 6 or something failed already before
1.92 + if (useJdk6API) return null;
1.93 + try {
1.94 + return clazz.getMethod(methodName, parameterTypes);
1.95 + } catch (NoSuchMethodException e) {
1.96 + LOGGER.log(Level.SEVERE, "Exception cought", e);
1.97 + LOGGER.log(Level.WARNING, "Method {0} not found. Temp files will be created using old java.io API.", methodName);
1.98 + useJdk6API = true;
1.99 + return null;
1.100 + }
1.101 + }
1.102 +
1.103 +
1.104 + static Object toPath(File f) throws InvocationTargetException, IllegalAccessException {
1.105 + return METHOD_FILE_TO_PATH.invoke(f);
1.106 + }
1.107 +
1.108 + static File toFile(Object path) throws InvocationTargetException, IllegalAccessException {
1.109 + return (File) METHOD_PATH_TO_FILE.invoke(path);
1.110 + }
1.111 +
1.112 + static File createTempFile(String prefix, String suffix, File dir) throws IOException {
1.113 +
1.114 + if (useJdk6API) {
1.115 + LOGGER.log(Level.FINEST, "Jdk6 detected, temp file (prefix:{0}, suffix:{1}) being created using old java.io API.", new Object[]{prefix, suffix});
1.116 + return File.createTempFile(prefix, suffix, dir);
1.117 +
1.118 + } else {
1.119 +
1.120 + try {
1.121 + if (dir != null) {
1.122 + Object path = toPath(dir);
1.123 + LOGGER.log(Level.FINEST, "Temp file (path: {0}, prefix:{1}, suffix:{2}) being created using NIO API.", new Object[]{dir.getAbsolutePath(), prefix, suffix});
1.124 + return toFile(METHOD_FILES_CREATE_TEMP_FILE_WITHPATH.invoke(null, path, prefix, suffix, Array.newInstance(CLASS_FILE_ATTRIBUTE, 0)));
1.125 + } else {
1.126 + LOGGER.log(Level.FINEST, "Temp file (prefix:{0}, suffix:{1}) being created using NIO API.", new Object[]{prefix, suffix});
1.127 + return toFile(METHOD_FILES_CREATE_TEMP_FILE.invoke(null, prefix, suffix, Array.newInstance(CLASS_FILE_ATTRIBUTE, 0)));
1.128 + }
1.129 +
1.130 + } catch (IllegalAccessException e) {
1.131 + LOGGER.log(Level.SEVERE, "Exception caught", e);
1.132 + LOGGER.log(Level.WARNING, "Error invoking java.nio API, temp file (path: {0}, prefix:{1}, suffix:{2}) being created using old java.io API.",
1.133 + new Object[]{dir != null ? dir.getAbsolutePath() : null, prefix, suffix});
1.134 + return File.createTempFile(prefix, suffix, dir);
1.135 +
1.136 + } catch (InvocationTargetException e) {
1.137 + LOGGER.log(Level.SEVERE, "Exception caught", e);
1.138 + LOGGER.log(Level.WARNING, "Error invoking java.nio API, temp file (path: {0}, prefix:{1}, suffix:{2}) being created using old java.io API.",
1.139 + new Object[]{dir != null ? dir.getAbsolutePath() : null, prefix, suffix});
1.140 + return File.createTempFile(prefix, suffix, dir);
1.141 + }
1.142 + }
1.143 +
1.144 + }
1.145 +
1.146 +
1.147 +}
