|
Java example source code file (ReflectionUtils.java)
The ReflectionUtils.java Java example source code/* * * * Copyright 2015 Skymind,Inc. * * * * Licensed 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.deeplearning4j.util; import org.canova.api.conf.Configuration; import java.io.PrintWriter; import java.lang.management.ManagementFactory; import java.lang.management.ThreadInfo; import java.lang.management.ThreadMXBean; import java.lang.reflect.Constructor; import java.lang.reflect.Method; import java.util.Map; import java.util.concurrent.ConcurrentHashMap; /** * General reflection utils */ public class ReflectionUtils { private static final Class<?>[] EMPTY_ARRAY = new Class[]{}; /** * Cache of constructors for each class. Pins the classes so they * can't be garbage collected until ReflectionUtils can be collected. */ private static final Map<Class> CONSTRUCTOR_CACHE = new ConcurrentHashMap<>(); /** * This code is to support backward compatibility and break the compile * time dependency of core on mapred. * This should be made deprecated along with the mapred package HADOOP-1230. * Should be removed when mapred package is removed. */ private static void setJobConf(Object theObject, Configuration conf) { //If JobConf and JobConfigurable are in classpath, AND //theObject is of type JobConfigurable AND //conf is of type JobConf then //invoke configure on theObject try { Class<?> jobConfClass = conf.getClassByName("org.apache.hadoop.mapred.JobConf"); Class<?> jobConfigurableClass = conf.getClassByName("org.apache.hadoop.mapred.JobConfigurable"); if (jobConfClass.isAssignableFrom(conf.getClass()) && jobConfigurableClass.isAssignableFrom(theObject.getClass())) { Method configureMethod = jobConfigurableClass.getMethod("configure", jobConfClass); configureMethod.invoke(theObject, conf); } } catch (ClassNotFoundException e) { //JobConf/JobConfigurable not in classpath. no need to configure } catch (Exception e) { throw new RuntimeException("Error in configuring object", e); } } /** Create an object for the given class and initialize it from conf * * @param theClass class of which an object is created * @param conf Configuration * @return a new object */ @SuppressWarnings("unchecked") public static <T> T newInstance(Class Other Java examples (source code examples)Here is a short list of links related to this Java ReflectionUtils.java source code file: |
... this post is sponsored by my books ... | |
#1 New Release! |
FP Best Seller |
Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.