/* * The MIT License (MIT) * * Copyright (c) 2017-2019 Yegor Bugayenko * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package org.jpeek.skeleton; import com.jcabi.log.Logger; import java.io.IOException; import java.io.InputStream; import java.nio.file.Files; import java.util.Collection; import java.util.Comparator; import java.util.Iterator; import java.util.TreeSet; import javassist.ClassPool; import javassist.CtClass; import org.cactoos.collection.CollectionOf; import org.cactoos.collection.Filtered; import org.cactoos.collection.Mapped; import org.jpeek.Base; /** * List of Javassist classes. * * <p>We take into account only classes. Interfaces are ignored.</p> * * <p>There is no thread-safety guarantee.</p> * * @see <a href="http://www.pitt.edu/~ckemerer/CK%20research%20papers/MetricForOOD_ChidamberKemerer94.pdf">A packages suite for object oriented design</a> * @since 0.27 * @checkstyle AbbreviationAsWordInNameCheck (5 lines) * @checkstyle ClassDataAbstractionCouplingCheck (500 lines) */ final class Classes implements Iterable<CtClass> { /** * The base. */ private final Base base; /** * Javassist pool. */ private final ClassPool pool; /** * Ctor. * @param bse The base */ Classes(final Base bse) { this.base = bse; this.pool = new ClassPool(); } @Override @SuppressWarnings({ "PMD.PrematureDeclaration", "PMD.GuardLogStatement" }) public Iterator<CtClass> iterator() { final Collection<CtClass> classes; final long start = System.currentTimeMillis(); try { classes = new Filtered<>( // @checkstyle BooleanExpressionComplexityCheck (10 lines) ctClass -> !ctClass.isInterface() && !ctClass.isEnum() && !ctClass.isAnnotation() && !ctClass.getName().matches("^.+\\$[0-9]+$") && !ctClass.getName().matches("^.+\\$AjcClosure[0-9]+$"), new Mapped<>( path -> { try (InputStream stream = Files.newInputStream(path)) { return this.pool.makeClassIfNew(stream); } }, new Filtered<>( path -> Files.isRegularFile(path) && path.toString().endsWith(".class"), new CollectionOf<>(this.base.files()) ) ) ); } catch (final IOException ex) { throw new IllegalStateException(ex); } final Collection<CtClass> unique = new TreeSet<>( Comparator.comparing(CtClass::getName) ); unique.addAll(classes); Logger.debug( this, "%d classes found and parsed via Javassist in %[ms]s", unique.size(), System.currentTimeMillis() - start ); return unique.iterator(); } }