Examples with JarURLConnection java.net.JarURLConnection used on opensource projects

Example 66 with JarURLConnection

use of java.net.JarURLConnection in project ibas-framework by color-coding.

the class BOFactory method loadClasses.

@Override
public Class<?>[] loadClasses(String packageName) {
    // 第一个class类的集合
    Set<Class<?>> classes = new LinkedHashSet<Class<?>>();
    String packageDirName = packageName.replace('.', '/');
    // 定义一个枚举的集合 并进行循环来处理这个目录下的things
    Enumeration<URL> dirs;
    try {
        ClassLoader classLoader = this.getClassLoader();
        dirs = classLoader.getResources(packageDirName);
        // 循环迭代下去
        while (dirs.hasMoreElements()) {
            // 获取下一个元素
            URL url = dirs.nextElement();
            // 得到协议的名称
            String protocol = url.getProtocol();
            // 如果是以文件的形式保存在服务器上
            if ("file".equals(protocol)) {
                // 获取包的物理路径
                String filePath = URLDecoder.decode(url.getFile(), "UTF-8");
                // 以文件的方式扫描整个包下的文件 并添加到集合中
                this.findClassesInPackageByFile(packageName, filePath, classes);
            } else if ("jar".equals(protocol)) {
                // 如果是jar包文件
                // 定义一个JarFile
                JarFile jar;
                try {
                    // 获取jar
                    jar = ((JarURLConnection) url.openConnection()).getJarFile();
                    // 从此jar包 得到一个枚举类
                    Enumeration<JarEntry> entries = jar.entries();
                    // 同样的进行循环迭代
                    while (entries.hasMoreElements()) {
                        // 获取jar里的一个实体 可以是目录 和一些jar包里的其他文件 如META-INF等文件
                        JarEntry entry = entries.nextElement();
                        String name = entry.getName();
                        // 如果是以/开头的
                        if (name.charAt(0) == '/') {
                            // 获取后面的字符串
                            name = name.substring(1);
                        }
                        // 如果前半部分和定义的包名相同
                        if (name.startsWith(packageDirName)) {
                            int idx = name.lastIndexOf('/');
                            // 如果以"/"结尾 是一个包
                            if (idx != -1) {
                                // 获取包名 把"/"替换成"."
                                packageName = name.substring(0, idx).replace('/', '.');
                            }
                            // 如果可以迭代下去 并且是一个包
                            if (idx != -1) {
                                // 如果是一个.class文件 而且不是目录
                                if (name.endsWith(".class") && !entry.isDirectory()) {
                                    // 去掉后面的".class" 获取真正的类名
                                    String className = name.substring(packageName.length() + 1, name.length() - 6);
                                    try {
                                        // 添加到classes
                                        classes.add(classLoader.loadClass(packageName + '.' + className));
                                    } catch (ClassNotFoundException e) {
                                    // Logger.log(MessageLevel.DEBUG, e);
                                    }
                                }
                            }
                        }
                    }
                } catch (IOException e) {
                    Logger.log(MessageLevel.DEBUG, e);
                }
            }
        }
    } catch (IOException e) {
        Logger.log(MessageLevel.DEBUG, e);
    }
    return classes.toArray(new Class<?>[] {});
}

Example 67 with JarURLConnection

use of java.net.JarURLConnection in project tomcat70 by apache.

the class JarURLResource method getJarFile.

@Override
public JarFile getJarFile() throws IOException {
    URL jarFileUrl = new URL("jar:" + jarUrl + "!/");
    JarURLConnection conn = (JarURLConnection) jarFileUrl.openConnection();
    conn.setUseCaches(false);
    conn.connect();
    return conn.getJarFile();
}

Example 68 with JarURLConnection

use of java.net.JarURLConnection in project tomcat70 by apache.

the class JspCompilationContext method getLastModified.

public Long getLastModified(String resource) {
    long result = -1;
    if (resource.startsWith("file:/")) {
        File f;
        try {
            f = new File(new URI(resource));
        } catch (URISyntaxException e) {
            return Long.valueOf(-1);
        }
        return Long.valueOf(f.lastModified());
    }
    URLConnection uc = null;
    try {
        URL jspUrl = getResource(resource);
        if (jspUrl == null) {
            incrementRemoved();
            return Long.valueOf(result);
        }
        uc = jspUrl.openConnection();
        if (uc instanceof JarURLConnection) {
            result = ((JarURLConnection) uc).getJarEntry().getTime();
        } else {
            result = uc.getLastModified();
        }
    } catch (IOException e) {
        if (log.isDebugEnabled()) {
            log.debug(Localizer.getMessage("jsp.error.lastModified", getJspFile()), e);
        }
        result = -1;
    } finally {
        if (uc != null) {
            try {
                uc.getInputStream().close();
            } catch (IOException e) {
                if (log.isDebugEnabled()) {
                    log.debug(Localizer.getMessage("jsp.error.lastModified", getJspFile()), e);
                }
                result = -1;
            }
        }
    }
    return Long.valueOf(result);
}

Example 69 with JarURLConnection

use of java.net.JarURLConnection in project tomcat70 by apache.

the class JspCompilationContext method getJspLastModified.

/**
 * @deprecated Will be removed in Tomcat 8.0.x. Use
 * {@link #getLastModified(String)} instead.
 */
@Deprecated
public long getJspLastModified() {
    long result = -1;
    URLConnection uc = null;
    try {
        URL jspUrl = getResource(getJspFile());
        if (jspUrl == null) {
            incrementRemoved();
            return result;
        }
        uc = jspUrl.openConnection();
        if (uc instanceof JarURLConnection) {
            result = ((JarURLConnection) uc).getJarEntry().getTime();
        } else {
            result = uc.getLastModified();
        }
    } catch (IOException e) {
        if (log.isDebugEnabled()) {
            log.debug(Localizer.getMessage("jsp.error.lastModified", getJspFile()), e);
        }
        result = -1;
    } finally {
        if (uc != null) {
            try {
                uc.getInputStream().close();
            } catch (IOException e) {
                if (log.isDebugEnabled()) {
                    log.debug(Localizer.getMessage("jsp.error.lastModified", getJspFile()), e);
                }
                result = -1;
            }
        }
    }
    return result;
}

Example 70 with JarURLConnection

use of java.net.JarURLConnection in project tomcat70 by apache.

the class ExpandWar method validate.

/**
 * Validate the WAR file found at the specified URL.
 *
 * @param host Host war is being installed for
 * @param war URL of the web application archive to be validated
 *  (must start with "jar:")
 * @param pathname Context path name for web application
 *
 * @exception IllegalArgumentException if this is not a "jar:" URL or if the
 *            WAR file is invalid
 * @exception IOException if an input/output error was encountered
 *            during validation
 */
public static void validate(Host host, URL war, String pathname) throws IOException {
    // Make the appBase absolute
    File appBase = new File(host.getAppBase());
    if (!appBase.isAbsolute()) {
        appBase = new File(System.getProperty(Globals.CATALINA_BASE_PROP), host.getAppBase());
    }
    File docBase = new File(appBase, pathname);
    // Calculate the document base directory
    String canonicalDocBasePrefix = docBase.getCanonicalPath();
    if (!canonicalDocBasePrefix.endsWith(File.separator)) {
        canonicalDocBasePrefix += File.separator;
    }
    JarURLConnection juc = (JarURLConnection) war.openConnection();
    juc.setUseCaches(false);
    JarFile jarFile = null;
    try {
        jarFile = juc.getJarFile();
        Enumeration<JarEntry> jarEntries = jarFile.entries();
        while (jarEntries.hasMoreElements()) {
            JarEntry jarEntry = jarEntries.nextElement();
            String name = jarEntry.getName();
            File expandedFile = new File(docBase, name);
            if (!expandedFile.getCanonicalPath().startsWith(canonicalDocBasePrefix)) {
                // Throw an exception to stop the deployment
                throw new IllegalArgumentException(sm.getString("expandWar.illegalPath", war, name, expandedFile.getCanonicalPath(), canonicalDocBasePrefix));
            }
        }
    } catch (IOException e) {
        throw e;
    } finally {
        if (jarFile != null) {
            try {
                jarFile.close();
            } catch (Throwable t) {
                ExceptionUtils.handleThrowable(t);
            }
            jarFile = null;
        }
    }
}