| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.commons.pool2.impl; |
| |
| import java.security.AccessControlException; |
| |
| /** |
| * Utility methods for {@link CallStack}. |
| * |
| * @since 2.4.3 |
| */ |
| public final class CallStackUtils { |
| |
| /** |
| * Returns whether the caller can create a security manager in the current environment. |
| * |
| * @return {@code true} if it is able to create a security manager in the current environment, {@code false} |
| * otherwise. |
| */ |
| private static boolean canCreateSecurityManager() { |
| final SecurityManager manager = System.getSecurityManager(); |
| if (manager == null) { |
| return true; |
| } |
| try { |
| manager.checkPermission(new RuntimePermission("createSecurityManager")); |
| return true; |
| } catch (final AccessControlException ignored) { |
| return false; |
| } |
| } |
| |
| /** |
| * Constructs a new {@link CallStack} using the fastest allowed strategy. |
| * |
| * @param messageFormat message (or format) to print first in stack traces |
| * @param useTimestamp if true, interpret message as a SimpleDateFormat and print the created timestamp; otherwise, |
| * print message format literally |
| * @return a new CallStack |
| * @deprecated use {@link #newCallStack(String, boolean, boolean)} |
| */ |
| @Deprecated |
| public static CallStack newCallStack(final String messageFormat, final boolean useTimestamp) { |
| return newCallStack(messageFormat, useTimestamp, false); |
| } |
| |
| /** |
| * Constructs a new {@link CallStack} using the fasted allowed strategy. |
| * |
| * @param messageFormat message (or format) to print first in stack traces |
| * @param useTimestamp if true, interpret message as a SimpleDateFormat and print the created timestamp; |
| * otherwise, print message format literally |
| * @param requireFullStackTrace if true, forces the use of a stack walking mechanism that includes full stack trace |
| * information; otherwise, uses a faster implementation if possible |
| * @return a new CallStack |
| * @since 2.5 |
| */ |
| public static CallStack newCallStack(final String messageFormat, |
| final boolean useTimestamp, |
| final boolean requireFullStackTrace) { |
| return canCreateSecurityManager() && !requireFullStackTrace ? |
| new SecurityManagerCallStack(messageFormat, useTimestamp) : |
| new ThrowableCallStack(messageFormat, useTimestamp); |
| } |
| |
| /** |
| * Hidden constructor. |
| */ |
| private CallStackUtils() { |
| } |
| } |