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

Example 56 with JarURLConnection

use of java.net.JarURLConnection in project vespa by vespa-engine.

the class FilesApplicationPackage method allSdsOnClassPath.

private static void allSdsOnClassPath(List<String> usedNames, Map<String, String> ret) throws IOException {
    Enumeration<java.net.URL> resources = FilesApplicationPackage.class.getClassLoader().getResources(ApplicationPackage.SEARCH_DEFINITIONS_DIR.getRelative());
    while (resources.hasMoreElements()) {
        URL resource = resources.nextElement();
        String protocol = resource.getProtocol();
        if ("file".equals(protocol)) {
            File file;
            try {
                file = new File(resource.toURI());
            } catch (URISyntaxException e) {
                continue;
            }
            // only interested in directories
            if (file.isDirectory()) {
                List<File> sdFiles = getSearchDefinitionFiles(file);
                for (File sdFile : sdFiles) {
                    String sdName = sdFile.getName();
                    if (usedNames.contains(sdName)) {
                        throw new IllegalArgumentException("The search definition name '" + sdName + "' found in classpath already used earlier in classpath.");
                    }
                    usedNames.add(sdName);
                    String contents = IOUtils.readAll(new FileReader(sdFile));
                    ret.put(sdFile.getName(), contents);
                }
            }
        } else if ("jar".equals(protocol)) {
            JarURLConnection jarConnection = (JarURLConnection) resource.openConnection();
            JarFile jarFile = jarConnection.getJarFile();
            for (Map.Entry<String, String> entry : ApplicationPackage.getBundleSdFiles("", jarFile).entrySet()) {
                String sdName = entry.getKey();
                if (usedNames.contains(sdName)) {
                    throw new IllegalArgumentException("The search definitions name '" + sdName + "' used in bundle '" + jarFile.getName() + "' " + "is already used in classpath or previous bundle.");
                }
                usedNames.add(sdName);
                String sdPayload = entry.getValue();
                ret.put(sdName, sdPayload);
            }
        }
    }
}

Example 57 with JarURLConnection

use of java.net.JarURLConnection in project sagacity-sqltoy by chenrenfei.

the class ScanEntityAndSqlResource method getPackageEntities.

/**
 * @todo 从指定包package中获取所有的sqltoy实体对象
 * @param pack
 * @param recursive
 *            是否循环迭代下级目录
 * @return
 */
public static Set<Class<?>> getPackageEntities(String pack, boolean recursive, String charset) {
    // 第一个class类的集合
    Set<Class<?>> entities = new LinkedHashSet<Class<?>>();
    // 获取包的名字 并进行替换
    String packageName = pack;
    // 剔除第一个字符为目录的符合
    if (packageName.charAt(0) == '/') {
        packageName = packageName.substring(1);
    }
    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 {
        dirs = Thread.currentThread().getContextClassLoader().getResources(packageDirName);
        // 循环迭代下去
        URL url;
        String protocol;
        while (dirs.hasMoreElements()) {
            // 获取下一个元素
            url = dirs.nextElement();
            // 得到协议的名称
            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(), (charset == null) ? "UTF-8" : charset);
                // 以文件的方式扫描整个包下的文件 并添加到集合中
                addEntitiesInPackage(packageName, filePath, recursive, entities);
            } else if ("jar".equals(protocol)) {
                // 如果是jar包文件
                System.out.println("jar类型的扫描,加载sql.xml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
                    JarEntry entry;
                    String name;
                    String loadClass;
                    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
                        entry = entries.nextElement();
                        name = entry.getName();
                        // 如果前半部分和定义的包名相同
                        if (name.startsWith(packageDirName) && name.endsWith(".class") && !entry.isDirectory()) {
                            // 去掉后面的".class" 获取真正的类名
                            loadClass = name.substring(0, name.length() - 6).replace("/", ".");
                            try {
                                // 添加到classes
                                Class entityClass = Thread.currentThread().getContextClassLoader().loadClass(loadClass);
                                // 判定是否是sqltoy实体对象
                                if (isSqlToyEntity(entityClass))
                                    entities.add(entityClass);
                            } catch (ClassNotFoundException e) {
                                e.printStackTrace();
                            }
                        }
                    }
                } catch (IOException e) {
                    // log.error("在扫描用户定义视图时从jar包获取文件出错");
                    e.printStackTrace();
                }
            }
        }
    } catch (IOException e) {
        e.printStackTrace();
    }
    return entities;
}

Example 58 with JarURLConnection

use of java.net.JarURLConnection in project openj9 by eclipse.

the class CustomURLClassLoader method locateClass.

private int locateClass(String className) {
    int classAtEntry = -1;
    String name = className.replace('.', '/').concat(".class");
    for (int index = 0; index < urls.length; index++) {
        URL currentUrl = urls[index];
        if (currentUrl.getProtocol().equals("jar")) {
            JarEntry entry = null;
            JarFile jf = (JarFile) jarCache.get(currentUrl);
            if (jf == null) {
                /* First time we have encountered this jar.
					 * Lets cache its metaData.
					 */
                try {
                    URL jarFileUrl = ((JarURLConnection) currentUrl.openConnection()).getJarFileURL();
                    JarURLConnection jarUrlConnection = (JarURLConnection) new URL("jar", "", jarFileUrl.toExternalForm() + "!/").openConnection();
                    try {
                        jf = jarUrlConnection.getJarFile();
                    } catch (Exception e) {
                    }
                    if (jf != null) {
                        jarCache.put(currentUrl, jf);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
                if (jf != null) {
                    Manifest manifest = null;
                    java.security.cert.Certificate[] certs = null;
                    URL csUrl = currentUrl;
                    CodeSource codeSource;
                    try {
                        manifest = jf.getManifest();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    entry = jf.getJarEntry(name);
                    if (entry != null) {
                        certs = entry.getCertificates();
                    }
                    codeSource = new CodeSource(csUrl, certs);
                    CustomLoaderMetaDataCache metaData = new CustomLoaderMetaDataCache();
                    metaData.manifest = manifest;
                    metaData.codeSource = codeSource;
                    metaDataArray[index] = metaData;
                }
            }
            if (entry == null && jf != null) {
                entry = jf.getJarEntry(name);
            }
            if (entry != null) {
                /* We have the first match on the class path, return the current url index */
                return index;
            }
        } else {
            String filename = currentUrl.getFile();
            String host = currentUrl.getHost();
            if (host != null && host.length() > 0) {
                filename = new StringBuffer(host.length() + filename.length() + name.length() + 2).append("//").append(host).append(filename).append(name).toString();
            } else {
                filename = new StringBuffer(filename.length() + name.length()).append(filename).append(name).toString();
            }
            File file = new File(filename);
            // Don't throw exceptions for speed
            if (file.exists()) {
                if (metaDataArray[index] == null) {
                    java.security.cert.Certificate[] certs = null;
                    CustomLoaderMetaDataCache metaData = new CustomLoaderMetaDataCache();
                    metaData.manifest = null;
                    metaData.codeSource = new CodeSource(currentUrl, certs);
                    metaDataArray[index] = metaData;
                }
                return index;
            }
        }
    }
    return classAtEntry;
}

Example 59 with JarURLConnection

use of java.net.JarURLConnection in project openj9 by eclipse.

the class CustomURLClassLoaderNoAPIUse method locateClass.

private int locateClass(String className) {
    int classAtEntry = -1;
    String name = className.replace('.', '/').concat(".class");
    for (int index = 0; index < urls.length; index++) {
        URL currentUrl = urls[index];
        if (currentUrl.getProtocol().equals("jar")) {
            JarEntry entry = null;
            JarFile jf = (JarFile) jarCache.get(currentUrl);
            if (jf == null) {
                /* First time we have encountered this jar.
					 * Lets cache its metaData.
					 */
                try {
                    URL jarFileUrl = ((JarURLConnection) currentUrl.openConnection()).getJarFileURL();
                    JarURLConnection jarUrlConnection = (JarURLConnection) new URL("jar", "", jarFileUrl.toExternalForm() + "!/").openConnection();
                    try {
                        jf = jarUrlConnection.getJarFile();
                    } catch (Exception e) {
                    }
                    if (jf != null) {
                        jarCache.put(currentUrl, jf);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
                if (jf != null) {
                    Manifest manifest = null;
                    java.security.cert.Certificate[] certs = null;
                    URL csUrl = currentUrl;
                    CodeSource codeSource;
                    try {
                        manifest = jf.getManifest();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    entry = jf.getJarEntry(name);
                    if (entry != null) {
                        certs = entry.getCertificates();
                    }
                    codeSource = new CodeSource(csUrl, certs);
                    CustomLoaderMetaDataCache metaData = new CustomLoaderMetaDataCache();
                    metaData.manifest = manifest;
                    metaData.codeSource = codeSource;
                    metaDataArray[index] = metaData;
                }
            }
            if (entry == null && jf != null) {
                entry = jf.getJarEntry(name);
            }
            if (entry != null) {
                /* We have the first match on the class path, return the current url index */
                return index;
            }
        } else {
            String filename = currentUrl.getFile();
            String host = currentUrl.getHost();
            if (host != null && host.length() > 0) {
                filename = new StringBuffer(host.length() + filename.length() + name.length() + 2).append("//").append(host).append(filename).append(name).toString();
            } else {
                filename = new StringBuffer(filename.length() + name.length()).append(filename).append(name).toString();
            }
            File file = new File(filename);
            // Don't throw exceptions for speed
            if (file.exists()) {
                if (metaDataArray[index] == null) {
                    java.security.cert.Certificate[] certs = null;
                    CustomLoaderMetaDataCache metaData = new CustomLoaderMetaDataCache();
                    metaData.manifest = null;
                    metaData.codeSource = new CodeSource(currentUrl, certs);
                    metaDataArray[index] = metaData;
                }
                return index;
            }
        }
    }
    return classAtEntry;
}

Example 60 with JarURLConnection

use of java.net.JarURLConnection in project openj9 by eclipse.

the class CustomURLClassLoaderNonConfirming method locateClass.

private int locateClass(String className) {
    int classAtEntry = -1;
    String name = className.replace('.', '/').concat(".class");
    for (int index = 0; index < urls.length; index++) {
        URL currentUrl = urls[index];
        if (currentUrl.getProtocol().equals("jar")) {
            JarEntry entry = null;
            JarFile jf = (JarFile) jarCache.get(currentUrl);
            if (jf == null) {
                /* First time we have encountered this jar.
					 * Lets cache its metaData.
					 */
                try {
                    URL jarFileUrl = ((JarURLConnection) currentUrl.openConnection()).getJarFileURL();
                    JarURLConnection jarUrlConnection = (JarURLConnection) new URL("jar", "", jarFileUrl.toExternalForm() + "!/").openConnection();
                    try {
                        jf = jarUrlConnection.getJarFile();
                    } catch (Exception e) {
                    }
                    if (jf != null) {
                        jarCache.put(currentUrl, jf);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
                if (jf != null) {
                    Manifest manifest = null;
                    java.security.cert.Certificate[] certs = null;
                    URL csUrl = currentUrl;
                    CodeSource codeSource;
                    try {
                        manifest = jf.getManifest();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    entry = jf.getJarEntry(name);
                    if (entry != null) {
                        certs = entry.getCertificates();
                    }
                    codeSource = new CodeSource(csUrl, certs);
                    CustomLoaderMetaDataCache metaData = new CustomLoaderMetaDataCache();
                    metaData.manifest = manifest;
                    metaData.codeSource = codeSource;
                    metaDataArray[index] = metaData;
                }
            }
            if (entry == null && jf != null) {
                entry = jf.getJarEntry(name);
            }
            if (entry != null) {
                /* We have the first match on the class path, return the current url index */
                return index;
            }
        } else {
            String filename = currentUrl.getFile();
            String host = currentUrl.getHost();
            if (host != null && host.length() > 0) {
                filename = new StringBuffer(host.length() + filename.length() + name.length() + 2).append("//").append(host).append(filename).append(name).toString();
            } else {
                filename = new StringBuffer(filename.length() + name.length()).append(filename).append(name).toString();
            }
            File file = new File(filename);
            // Don't throw exceptions for speed
            if (file.exists()) {
                if (metaDataArray[index] == null) {
                    java.security.cert.Certificate[] certs = null;
                    CustomLoaderMetaDataCache metaData = new CustomLoaderMetaDataCache();
                    metaData.manifest = null;
                    metaData.codeSource = new CodeSource(currentUrl, certs);
                    metaDataArray[index] = metaData;
                }
                return index;
            }
        }
    }
    return classAtEntry;
}