|
| 1 | +/* |
| 2 | + * Licensed to the Apache Software Foundation (ASF) under one or more |
| 3 | + * contributor license agreements. See the NOTICE file distributed with |
| 4 | + * this work for additional information regarding copyright ownership. |
| 5 | + * The ASF licenses this file to You under the Apache License, Version 2.0 |
| 6 | + * (the "License"); you may not use this file except in compliance with |
| 7 | + * the License. You may obtain a copy of the License at |
| 8 | + * |
| 9 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | + * |
| 11 | + * Unless required by applicable law or agreed to in writing, software |
| 12 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | + * See the License for the specific language governing permissions and |
| 15 | + * limitations under the License. |
| 16 | + * |
| 17 | + */ |
| 18 | + |
| 19 | +package org.apache.skywalking.apm.plugin.undertow.worker.thread.pool.util; |
| 20 | + |
| 21 | +import java.lang.reflect.Field; |
| 22 | +import java.lang.reflect.InvocationTargetException; |
| 23 | +import java.lang.reflect.Method; |
| 24 | +import lombok.Getter; |
| 25 | +import org.xnio.XnioWorker; |
| 26 | + |
| 27 | +public class XnioWorkerTaskPoolAccessor { |
| 28 | + |
| 29 | + private final Object taskPool; |
| 30 | + @Getter |
| 31 | + private boolean containsGetPoolSizeMethod; |
| 32 | + |
| 33 | + private Method getCorePoolSizeMethod; |
| 34 | + private Method getMaximumPoolSizeMethod; |
| 35 | + private Method getActiveCountMethod; |
| 36 | + private Method getPoolSizeMethod; |
| 37 | + private Method getQueueSizeMethod; |
| 38 | + |
| 39 | + public XnioWorkerTaskPoolAccessor(final XnioWorker worker) throws NoSuchFieldException, IllegalAccessException { |
| 40 | + Field field = worker.getClass().getSuperclass().getDeclaredField("taskPool"); |
| 41 | + field.setAccessible(true); |
| 42 | + this.taskPool = field.get(worker); |
| 43 | + |
| 44 | + try { |
| 45 | + getCorePoolSizeMethod = taskPool.getClass().getDeclaredMethod("getCorePoolSize"); |
| 46 | + getCorePoolSizeMethod.setAccessible(true); |
| 47 | + } catch (NoSuchMethodException e) { |
| 48 | + // ignore |
| 49 | + } |
| 50 | + try { |
| 51 | + getMaximumPoolSizeMethod = taskPool.getClass().getDeclaredMethod("getMaximumPoolSize"); |
| 52 | + getMaximumPoolSizeMethod.setAccessible(true); |
| 53 | + } catch (NoSuchMethodException e) { |
| 54 | + // ignore |
| 55 | + } |
| 56 | + try { |
| 57 | + getActiveCountMethod = taskPool.getClass().getDeclaredMethod("getActiveCount"); |
| 58 | + getActiveCountMethod.setAccessible(true); |
| 59 | + } catch (NoSuchMethodException e) { |
| 60 | + // ignore |
| 61 | + } |
| 62 | + try { |
| 63 | + // getPoolSize add since 3.8.0 |
| 64 | + getPoolSizeMethod = taskPool.getClass().getDeclaredMethod("getPoolSize"); |
| 65 | + getPoolSizeMethod.setAccessible(true); |
| 66 | + containsGetPoolSizeMethod = true; |
| 67 | + } catch (NoSuchMethodException e) { |
| 68 | + containsGetPoolSizeMethod = false; |
| 69 | + } |
| 70 | + try { |
| 71 | + getQueueSizeMethod = taskPool.getClass().getDeclaredMethod("getQueueSize"); |
| 72 | + getQueueSizeMethod.setAccessible(true); |
| 73 | + } catch (NoSuchMethodException e) { |
| 74 | + // ignore |
| 75 | + } |
| 76 | + } |
| 77 | + |
| 78 | + public int getCorePoolSize() { |
| 79 | + try { |
| 80 | + return (int) getCorePoolSizeMethod.invoke(taskPool); |
| 81 | + } catch (IllegalAccessException | InvocationTargetException e) { |
| 82 | + throw new RuntimeException(e); |
| 83 | + } |
| 84 | + } |
| 85 | + |
| 86 | + public int getMaximumPoolSize() { |
| 87 | + try { |
| 88 | + return (int) getMaximumPoolSizeMethod.invoke(taskPool); |
| 89 | + } catch (IllegalAccessException | InvocationTargetException e) { |
| 90 | + throw new RuntimeException(e); |
| 91 | + } |
| 92 | + } |
| 93 | + |
| 94 | + public int getActiveCount() { |
| 95 | + try { |
| 96 | + return (int) getActiveCountMethod.invoke(taskPool); |
| 97 | + } catch (IllegalAccessException | InvocationTargetException e) { |
| 98 | + throw new RuntimeException(e); |
| 99 | + } |
| 100 | + } |
| 101 | + |
| 102 | + public int getPoolSize() { |
| 103 | + try { |
| 104 | + return (int) getPoolSizeMethod.invoke(taskPool); |
| 105 | + } catch (IllegalAccessException | InvocationTargetException e) { |
| 106 | + throw new RuntimeException(e); |
| 107 | + } |
| 108 | + } |
| 109 | + |
| 110 | + public int getQueueSize() { |
| 111 | + try { |
| 112 | + return (int) getQueueSizeMethod.invoke(taskPool); |
| 113 | + } catch (IllegalAccessException | InvocationTargetException e) { |
| 114 | + throw new RuntimeException(e); |
| 115 | + } |
| 116 | + } |
| 117 | +} |
0 commit comments