1 /* 2 * Copyright (c) 2012-2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.tools.sjavac; 27 28 import java.io.PrintWriter; 29 import java.util.Arrays; 30 31 import javax.tools.JavaCompiler.CompilationTask; 32 33 import com.sun.tools.javac.api.JavacTool; 34 import com.sun.tools.javac.code.ClassFinder; 35 import com.sun.tools.javac.code.Symbol.ClassSymbol; 36 import com.sun.tools.javac.main.JavaCompiler; 37 import com.sun.tools.javac.util.Context; 38 import com.sun.tools.javac.util.Name; 39 import com.sun.tools.javac.util.Names; 40 import com.sun.tools.sjavac.comp.PubapiVisitor; 41 import com.sun.tools.sjavac.comp.SmartFileManager; 42 import com.sun.tools.sjavac.options.Options; 43 import com.sun.tools.sjavac.pubapi.PubApi; 44 45 46 public class PubApiExtractor { 47 // Setup a compiler context for finding classes in the classpath 48 // and to execute annotation processors. 49 Context context; 50 CompilationTask task; 51 52 /** 53 * Setup a compilation context, used for reading public apis of classes on the classpath 54 * as well as annotation processors. 55 */ 56 public PubApiExtractor(Options options) { 57 JavacTool compiler = com.sun.tools.javac.api.JavacTool.create(); 58 SmartFileManager fileManager = new SmartFileManager(compiler.getStandardFileManager(null, null, null)); 59 context = new com.sun.tools.javac.util.Context(); 60 String[] args = options.prepJavacArgs(); 61 task = compiler.getTask(new PrintWriter(System.err), 62 fileManager, 63 null, 64 Arrays.asList(args), 65 null, 66 null, 67 context); 68 // Trigger a creation of the JavaCompiler, necessary to get a sourceCompleter for ClassFinder. 69 // The sourceCompleter is used for build situations where a classpath class references other classes 70 // that happens to be on the sourcepath. 71 JavaCompiler.instance(context); 72 73 // context.put(JavaFileManager.class, fileManager); 74 } 75 76 public PubApi getPubApi(String fullyQualifiedClassName) { 77 ClassFinder cr = ClassFinder.instance(context); 78 Names ns = Names.instance(context); 79 Name n = ns.fromString(fullyQualifiedClassName); 80 ClassSymbol cs = cr.loadClass(n); 81 PubapiVisitor v = new PubapiVisitor(); 82 v.visit(cs); 83 return v.getCollectedPubApi(); 84 } 85 }