Examples with UtilException cn.hutool.core.exceptions.UtilException used on opensource projects

Example 36 with UtilException

use of cn.hutool.core.exceptions.UtilException in project hutool by looly.

the class URLUtil method completeUrl.

/**
 * 补全相对路径
 *
 * @param baseUrl      基准URL
 * @param relativePath 相对URL
 * @return 相对路径
 * @throws UtilException MalformedURLException
 */
public static String completeUrl(String baseUrl, String relativePath) {
    baseUrl = normalize(baseUrl, false);
    if (StrUtil.isBlank(baseUrl)) {
        return null;
    }
    try {
        final URL absoluteUrl = new URL(baseUrl);
        final URL parseUrl = new URL(absoluteUrl, relativePath);
        return parseUrl.toString();
    } catch (MalformedURLException e) {
        throw new UtilException(e);
    }
}

Example 37 with UtilException

use of cn.hutool.core.exceptions.UtilException in project hutool by looly.

the class NetUtil method localAddressList.

/**
 * 获取所有满足过滤条件的本地IP地址对象
 *
 * @param addressFilter 过滤器，null表示不过滤，获取所有地址
 * @return 过滤后的地址对象列表
 * @since 4.5.17
 */
public static LinkedHashSet<InetAddress> localAddressList(Filter<InetAddress> addressFilter) {
    Enumeration<NetworkInterface> networkInterfaces;
    try {
        networkInterfaces = NetworkInterface.getNetworkInterfaces();
    } catch (SocketException e) {
        throw new UtilException(e);
    }
    if (networkInterfaces == null) {
        throw new UtilException("Get network interface error!");
    }
    final LinkedHashSet<InetAddress> ipSet = new LinkedHashSet<>();
    while (networkInterfaces.hasMoreElements()) {
        final NetworkInterface networkInterface = networkInterfaces.nextElement();
        final Enumeration<InetAddress> inetAddresses = networkInterface.getInetAddresses();
        while (inetAddresses.hasMoreElements()) {
            final InetAddress inetAddress = inetAddresses.nextElement();
            if (inetAddress != null && (null == addressFilter || addressFilter.accept(inetAddress))) {
                ipSet.add(inetAddress);
            }
        }
    }
    return ipSet;
}

Example 38 with UtilException

use of cn.hutool.core.exceptions.UtilException in project hutool by looly.

the class MethodHandleUtil method findMethod.

/**
 * 查找指定方法的方法句柄<br>
 * 此方法只会查找：
 * <ul>
 *     <li>当前类的方法（包括构造方法和private方法）</li>
 *     <li>父类的方法（包括构造方法和private方法）</li>
 *     <li>当前类的static方法</li>
 * </ul>
 *
 * @param callerClass 方法所在类或接口
 * @param name        方法名称，{@code null}或者空则查找构造方法
 * @param type        返回类型和参数类型
 * @return 方法句柄 {@link MethodHandle}，{@code null}表示未找到方法
 */
public static MethodHandle findMethod(Class<?> callerClass, String name, MethodType type) {
    if (StrUtil.isBlank(name)) {
        return findConstructor(callerClass, type);
    }
    MethodHandle handle = null;
    final MethodHandles.Lookup lookup = lookup(callerClass);
    try {
        handle = lookup.findVirtual(callerClass, name, type);
    } catch (IllegalAccessException | NoSuchMethodException ignore) {
    // ignore
    }
    // static方法
    if (null == handle) {
        try {
            handle = lookup.findStatic(callerClass, name, type);
        } catch (IllegalAccessException | NoSuchMethodException ignore) {
        // ignore
        }
    }
    // 特殊方法，包括构造方法、私有方法等
    if (null == handle) {
        try {
            handle = lookup.findSpecial(callerClass, name, type, callerClass);
        } catch (NoSuchMethodException ignore) {
        // ignore
        } catch (IllegalAccessException e) {
            throw new UtilException(e);
        }
    }
    return handle;
}

Example 39 with UtilException

use of cn.hutool.core.exceptions.UtilException in project hutool by looly.

the class MethodHandleUtil method invokeSpecial.

/**
 * 执行接口或对象中的特殊方法（private、static等）<br>
 *
 * <pre class="code">
 *     interface Duck {
 *         default String quack() {
 *             return "Quack";
 *         }
 *     }
 *
 *     Duck duck = (Duck) Proxy.newProxyInstance(
 *         ClassLoaderUtil.getClassLoader(),
 *         new Class[] { Duck.class },
 *         MethodHandleUtil::invokeDefault);
 * </pre>
 *
 * @param <T>        返回结果类型
 * @param obj        接口的子对象或代理对象
 * @param methodName 方法名称
 * @param args       参数
 * @return 结果
 */
public static <T> T invokeSpecial(Object obj, String methodName, Object... args) {
    Assert.notNull(obj, "Object to get method must be not null!");
    Assert.notBlank(methodName, "Method name must be not blank!");
    final Method method = ReflectUtil.getMethodOfObj(obj, methodName, args);
    if (null == method) {
        throw new UtilException("No such method: [{}] from [{}]", methodName, obj.getClass());
    }
    return invokeSpecial(obj, method, args);
}

Example 40 with UtilException

use of cn.hutool.core.exceptions.UtilException in project hutool by looly.

the class StackTraceCaller method getCallerCaller.

@Override
public Class<?> getCallerCaller() {
    final StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace();
    if (OFFSET + 2 >= stackTrace.length) {
        return null;
    }
    final String className = stackTrace[OFFSET + 2].getClassName();
    try {
        return Class.forName(className);
    } catch (ClassNotFoundException e) {
        throw new UtilException(e, "[{}] not found!", className);
    }
}