com.crashnote.core.util.ClassUtil.jav Maven / Gradle / Ivy

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///**
// * Copyright (C) 2011 - 101loops.com 
// *
// * 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.crashnote.core.util;
//
//import java.io.File;
//import java.net.URL;
//import java.util.Properties;
//import java.util.regex.Pattern;
//
///**
// * Utility class to execute classpath and package reading/parsing
// */
//public class ClassUtil1 {
//
//    // ==== Packages
//
//    public String[] splitPath(final String name) {
//        final String packageName;
//        final String className;
//        final int lastDot = name.lastIndexOf('.');
//        if (lastDot == -1) {
//            packageName = "";
//            className = name.substring(name.lastIndexOf('/') + 1);
//        } else {
//            packageName = name.substring(name.lastIndexOf('/') + 1, lastDot);
//            className = name.substring(lastDot + 1);
//        }
//        return new String[]{packageName, className};
//    }
//
//    private String[] splitFilePath(final String path) {
//        if (path.contains(File.separator))
//            return path.split(Pattern.quote(File.separator));
//        else {
//            final String altSep = ("\\".equals(File.separator)) ? "/" : "\\";
//            return path.split(Pattern.quote(altSep));
//        }
//    }
//
//    public String[] getClasspathArray() {
//        final String[] paths = System.getProperty("java.class.path", "").split(File.pathSeparator);
//        final String[] res = new String[paths.length];
//        for (int i = 0; i < paths.length; i++) {
//            final String[] fp = splitFilePath(paths[i]); // split by file sep..
//            final String fn = fp[fp.length - 1];
//            res[i] = fn; // ..and only use last item (actual file name)
//        }
//        return res;
//    }
//
//    public String getClasspath() {
//        final StringBuilder sb = new StringBuilder();
//        for (final String e : getClasspathArray()) sb.append(e).append(":");
//        return sb.toString();
//    }
//
//    // ==== ClassLoader
//
//    /**
//     * Find a resource of the specified name from the search path used to load classes.
//     *
//     * @param name The resource name
//     * @return a bool indicating whether the resource was found
//     */
//    public Boolean resourceExists(final String name) {
//        return ClassLoader.getSystemResource(name) != null;
//    }
//
//    /**
//     * Load properties from classpath file
//     */
//    public Properties load(final String fileName) {
//        final Properties p = new Properties();
//        final URL url = ClassLoader.getSystemResource(fileName);
//        try {
//            p.load(url.openStream());
//        } catch (Exception ignored) {
//        }
//        return p;
//    }
//
//    /**
//     * Tests whether a class for a given name exists
//     */
//    public Boolean isClassOnPath(final String className) {
//        try {
//            Class.forName(className, false, ClassLoader.getSystemClassLoader());
//            return true;
//        } catch (ClassNotFoundException e) {
//            return false;
//        }
//    }
//}