Examples with UrlSet com.opensymphony.xwork2.util.finder.UrlSet used on opensource projects

Example 1 with UrlSet

use of com.opensymphony.xwork2.util.finder.UrlSet in project struts by apache.

the class JSPLoader method compileJava.

/**
 * Compiles the given source code into java bytecode
 */
private void compileJava(String className, final String source, Set<String> extraClassPath) throws IOException {
    LOG.trace("Compiling [{}], source: [{}]", className, source);
    JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
    DiagnosticCollector<JavaFileObject> diagnostics = new DiagnosticCollector<JavaFileObject>();
    // the generated bytecode is fed to the class loader
    JavaFileManager jfm = new ForwardingJavaFileManager<StandardJavaFileManager>(compiler.getStandardFileManager(diagnostics, null, null)) {

        @Override
        public JavaFileObject getJavaFileForOutput(Location location, String name, JavaFileObject.Kind kind, FileObject sibling) throws IOException {
            MemoryJavaFileObject fileObject = new MemoryJavaFileObject(name, kind);
            classLoader.addMemoryJavaFileObject(name, fileObject);
            return fileObject;
        }
    };
    // read java source code from memory
    String fileName = className.replace('.', '/') + ".java";
    SimpleJavaFileObject sourceCodeObject = new SimpleJavaFileObject(toURI(fileName), JavaFileObject.Kind.SOURCE) {

        @Override
        public CharSequence getCharContent(boolean ignoreEncodingErrors) throws IOException, IllegalStateException, UnsupportedOperationException {
            return source;
        }
    };
    // build classpath
    // some entries will be added multiple times, hence the set
    List<String> optionList = new ArrayList<String>();
    Set<String> classPath = new HashSet<String>();
    // find available jars
    ClassLoaderInterface classLoaderInterface = getClassLoaderInterface();
    UrlSet urlSet = new UrlSet(classLoaderInterface);
    // find jars
    List<URL> urls = urlSet.getUrls();
    if (urls != null && urls.size() > 0) {
        final FileManagerFactory fileManagerFactoryGetInstance = ServletActionContext.getActionContext().getInstance(FileManagerFactory.class);
        final FileManagerFactory contextFileManagerFactory = (fileManagerFactoryGetInstance != null ? fileManagerFactoryGetInstance : (FileManagerFactory) ServletActionContext.getActionContext().get(StrutsConstants.STRUTS_FILE_MANAGER_FACTORY));
        final FileManagerFactory fileManagerFactory = (contextFileManagerFactory != null ? contextFileManagerFactory : new DefaultFileManagerFactory());
        final FileManager fileManagerGetInstance = fileManagerFactory.getFileManager();
        final FileManager contextFileManager = (fileManagerGetInstance != null ? fileManagerGetInstance : (FileManager) ServletActionContext.getActionContext().get(StrutsConstants.STRUTS_FILE_MANAGER));
        final FileManager fileManager = (contextFileManager != null ? contextFileManager : new DefaultFileManager());
        for (URL url : urls) {
            URL normalizedUrl = fileManager.normalizeToFileProtocol(url);
            File file = FileUtils.toFile(ObjectUtils.defaultIfNull(normalizedUrl, url));
            if (file.exists())
                classPath.add(file.getAbsolutePath());
        }
    }
    // these should be in the list already, but I am feeling paranoid
    // this jar
    classPath.add(getJarUrl(EmbeddedJSPResult.class));
    // servlet api
    classPath.add(getJarUrl(Servlet.class));
    // jsp api
    classPath.add(getJarUrl(JspPage.class));
    try {
        Class instanceManager = Class.forName("org.apache.tomcat.InstanceManager");
        classPath.add(getJarUrl(instanceManager));
    } catch (ClassNotFoundException e) {
    // ok ignore
    }
    // add extra classpath entries (jars where tlds were found will be here)
    for (Iterator<String> iterator = extraClassPath.iterator(); iterator.hasNext(); ) {
        String entry = iterator.next();
        classPath.add(entry);
    }
    String classPathString = StringUtils.join(classPath, File.pathSeparator);
    if (LOG.isDebugEnabled()) {
        LOG.debug("Compiling [#0] with classpath [#1]", className, classPathString);
    }
    optionList.addAll(Arrays.asList("-classpath", classPathString));
    // compile
    JavaCompiler.CompilationTask task = compiler.getTask(null, jfm, diagnostics, optionList, null, Arrays.asList(sourceCodeObject));
    if (!task.call()) {
        throw new StrutsException("Compilation failed:" + diagnostics.getDiagnostics().get(0).toString());
    }
}

Example 2 with UrlSet

use of com.opensymphony.xwork2.util.finder.UrlSet in project struts by apache.

the class PackageBasedActionConfigBuilder method buildUrlSet.

private UrlSet buildUrlSet(List<URL> resourceUrls) throws IOException {
    ClassLoaderInterface classLoaderInterface = getClassLoaderInterface();
    UrlSet urlSet = new UrlSet(resourceUrls);
    urlSet = urlSet.include(new UrlSet(classLoaderInterface, this.fileProtocols));
    // excluding the urls found by the parent class loader is desired, but fails in JBoss (all urls are removed)
    if (excludeParentClassLoader) {
        // exclude parent of classloaders
        ClassLoaderInterface parent = classLoaderInterface.getParent();
        // this happens because the parent of the reloading class loader is the web app classloader
        if (parent != null && isReloadEnabled())
            parent = parent.getParent();
        if (parent != null)
            urlSet = urlSet.exclude(parent);
        try {
            // This may fail in some sandboxes, ie GAE
            ClassLoader systemClassLoader = ClassLoader.getSystemClassLoader();
            urlSet = urlSet.exclude(new ClassLoaderInterfaceDelegate(systemClassLoader.getParent()));
        } catch (SecurityException e) {
            LOG.warn("Could not get the system classloader due to security constraints, there may be improper urls left to scan");
        }
    }
    // try to find classes dirs inside war files
    urlSet = urlSet.includeClassesUrl(classLoaderInterface, new UrlSet.FileProtocolNormalizer() {

        public URL normalizeToFileProtocol(URL url) {
            return fileManager.normalizeToFileProtocol(url);
        }
    });
    urlSet = urlSet.excludeJavaExtDirs().excludeJavaEndorsedDirs().excludeUserExtensionsDir();
    try {
        urlSet = urlSet.excludeJavaHome();
    } catch (NullPointerException e) {
        // This happens in GAE since the sandbox contains no java.home directory
        LOG.warn("Could not exclude JAVA_HOME, is this a sandbox jvm?");
    }
    urlSet = urlSet.excludePaths(System.getProperty("sun.boot.class.path", ""));
    urlSet = urlSet.exclude(".*/JavaVM.framework/.*");
    if (includeJars == null) {
        urlSet = urlSet.exclude(".*?\\.jar(!/|/)?");
    } else {
        if (LOG.isDebugEnabled()) {
            LOG.debug("jar urls regexes were specified: {}", Arrays.asList(includeJars));
        }
        List<URL> rawIncludedUrls = urlSet.getUrls();
        Set<URL> includeUrls = new HashSet<>();
        boolean[] patternUsed = new boolean[includeJars.length];
        for (URL url : rawIncludedUrls) {
            if (fileProtocols.contains(url.getProtocol())) {
                // it is a jar file, make sure it matches at least a url regex
                for (int i = 0; i < includeJars.length; i++) {
                    String includeJar = includeJars[i];
                    if (Pattern.matches(includeJar, url.toExternalForm())) {
                        includeUrls.add(url);
                        patternUsed[i] = true;
                        break;
                    }
                }
            } else {
                LOG.debug("It is not a jar [{}]", url);
                includeUrls.add(url);
            }
        }
        if (LOG.isWarnEnabled()) {
            for (int i = 0; i < patternUsed.length; i++) {
                if (!patternUsed[i]) {
                    LOG.warn("The includeJars pattern [{}] did not match any jars in the classpath", includeJars[i]);
                }
            }
        }
        return new UrlSet(includeUrls);
    }
    return urlSet;
}