| <?xml version="1.0" encoding="UTF-8"?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml" lang="de"><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/><link rel="stylesheet" href="../jacoco-resources/report.css" type="text/css"/><link rel="shortcut icon" href="../jacoco-resources/report.gif" type="image/gif"/><title>JavaBaseFactory.java</title><link rel="stylesheet" href="../jacoco-resources/prettify.css" type="text/css"/><script type="text/javascript" src="../jacoco-resources/prettify.js"></script></head><body onload="window['PR_TAB_WIDTH']=4;prettyPrint()"><div class="breadcrumb" id="breadcrumb"><span class="info"><a href="../jacoco-sessions.html" class="el_session">Sessions</a></span><a href="../index.html" class="el_report">Apache Turbine</a> > <a href="index.source.html" class="el_package">org.apache.turbine.services.assemblerbroker.util.java</a> > <span class="el_source">JavaBaseFactory.java</span></div><h1>JavaBaseFactory.java</h1><pre class="source lang-java linenums">package org.apache.turbine.services.assemblerbroker.util.java; |
| |
| |
| import java.lang.reflect.InvocationTargetException; |
| |
| /* |
| * 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. |
| */ |
| |
| import java.util.List; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| import org.apache.commons.lang3.StringUtils; |
| import org.apache.logging.log4j.LogManager; |
| import org.apache.logging.log4j.Logger; |
| import org.apache.turbine.modules.Assembler; |
| import org.apache.turbine.modules.GenericLoader; |
| import org.apache.turbine.modules.Loader; |
| import org.apache.turbine.services.assemblerbroker.util.AssemblerFactory; |
| |
| /** |
| * A screen factory that attempts to load a java class from |
| * the module packages defined in the TurbineResource.properties. |
| * |
| * @author <a href="mailto:leon@opticode.co.za">Leon Messerschmidt</a> |
| * @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a> |
| * @param <T> the specialized assembler type |
| */ |
| <span class="fc" id="L44">public abstract class JavaBaseFactory<T extends Assembler></span> |
| implements AssemblerFactory<T> |
| { |
| /** A vector of packages. */ |
| <span class="fc" id="L48"> private static List<String> packages = GenericLoader.getPackages();</span> |
| |
| /** Logging */ |
| <span class="fc" id="L51"> protected Logger log = LogManager.getLogger(this.getClass());</span> |
| |
| /** |
| * A cache for previously obtained Class instances, which we keep in order |
| * to reduce the Class.forName() overhead (which can be sizable). |
| */ |
| <span class="fc" id="L57"> private final ConcurrentHashMap<String, Class<T>> classCache = new ConcurrentHashMap<>();</span> |
| |
| /** |
| * Get an Assembler. |
| * |
| * @param packageName java package name |
| * @param name name of the requested Assembler |
| * @return an Assembler |
| */ |
| @SuppressWarnings("unchecked") |
| public T getAssembler(String packageName, String name) |
| { |
| <span class="fc" id="L69"> T assembler = null;</span> |
| |
| <span class="fc" id="L71"> log.debug("Class Fragment is {}", name);</span> |
| |
| <span class="pc bpc" id="L73" title="1 of 2 branches missed."> if (StringUtils.isNotEmpty(name))</span> |
| { |
| <span class="fc bfc" id="L75" title="All 2 branches covered."> for (String p : packages)</span> |
| { |
| <span class="fc" id="L77"> StringBuilder sb = new StringBuilder();</span> |
| |
| <span class="fc" id="L79"> sb.append(p).append('.').append(packageName).append('.').append(name);</span> |
| <span class="fc" id="L80"> String className = sb.toString();</span> |
| |
| <span class="fc" id="L82"> log.debug("Trying {}", className);</span> |
| |
| try |
| { |
| <span class="fc" id="L86"> Class<T> servClass = classCache.get(className);</span> |
| <span class="fc bfc" id="L87" title="All 2 branches covered."> if (servClass == null)</span> |
| { |
| <span class="fc" id="L89"> servClass = (Class<T>) Class.forName(className);</span> |
| <span class="fc" id="L90"> Class<T> _servClass = classCache.putIfAbsent(className, servClass);</span> |
| <span class="fc bfc" id="L91" title="All 2 branches covered."> if (_servClass != null)</span> |
| { |
| <span class="fc" id="L93"> servClass = _servClass;</span> |
| } |
| } |
| <span class="fc" id="L96"> assembler = servClass.getDeclaredConstructor().newInstance();</span> |
| <span class="fc" id="L97"> break; // for()</span> |
| } |
| <span class="fc" id="L99"> catch (ClassNotFoundException cnfe)</span> |
| { |
| // Do this so we loop through all the packages. |
| <span class="fc" id="L102"> log.debug("{}: Not found", className);</span> |
| } |
| <span class="nc" id="L104"> catch (NoClassDefFoundError ncdfe)</span> |
| { |
| // Do this so we loop through all the packages. |
| <span class="nc" id="L107"> log.debug("{}: No Class Definition found", className);</span> |
| } |
| // With ClassCastException, InstantiationException we hit big problems |
| <span class="nc" id="L110"> catch (ClassCastException | InstantiationException | IllegalAccessException | InvocationTargetException | NoSuchMethodException e)</span> |
| { |
| // This means trouble! |
| // Alternatively we can throw this exception so |
| // that it will appear on the client browser |
| <span class="nc" id="L115"> log.error("Could not load {}", className, e);</span> |
| <span class="nc" id="L116"> break; // for()</span> |
| <span class="pc" id="L117"> }</span> |
| <span class="fc" id="L118"> }</span> |
| } |
| |
| <span class="fc" id="L121"> log.debug("Returning: {}", assembler);</span> |
| |
| <span class="fc" id="L123"> return assembler;</span> |
| } |
| |
| /** |
| * Get the loader for this type of assembler |
| * |
| * @return a Loader |
| */ |
| @Override |
| public abstract Loader<T> getLoader(); |
| |
| /** |
| * Get the size of a possibly configured cache |
| * |
| * @return the size of the cache in bytes |
| */ |
| @Override |
| public int getCacheSize() |
| { |
| <span class="nc" id="L142"> return getLoader().getCacheSize();</span> |
| } |
| } |
| </pre><div class="footer"><span class="right">Created with <a href="http://www.jacoco.org/jacoco">JaCoCo</a> 0.8.12.202403310830</span></div></body></html> |
