| /* |
| * Copyright (c) 1995, 2004, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.tools.java; |
| |
| import java.util.Enumeration; |
| import java.io.File; |
| import java.io.IOException; |
| |
| /** |
| * This class is used to represent the classes in a package. |
| * |
| * WARNING: The contents of this source file are not part of any |
| * supported API. Code that depends on them does so at its own risk: |
| * they are subject to change or removal without notice. |
| */ |
| public |
| class Package { |
| /** |
| * The path which we use to locate source files. |
| */ |
| ClassPath sourcePath; |
| |
| /** |
| * The path which we use to locate class (binary) files. |
| */ |
| ClassPath binaryPath; |
| |
| /** |
| * The path name of the package. |
| */ |
| String pkg; |
| |
| /** |
| * Create a package given a class path, and package name. |
| */ |
| public Package(ClassPath path, Identifier pkg) throws IOException { |
| this(path, path, pkg); |
| } |
| |
| /** |
| * Create a package given a source path, binary path, and package |
| * name. |
| */ |
| public Package(ClassPath sourcePath, |
| ClassPath binaryPath, |
| Identifier pkg) |
| throws IOException { |
| if (pkg.isInner()) |
| pkg = Identifier.lookup(pkg.getQualifier(), pkg.getFlatName()); |
| this.sourcePath = sourcePath; |
| this.binaryPath = binaryPath; |
| this.pkg = pkg.toString().replace('.', File.separatorChar); |
| } |
| |
| /** |
| * Check if a class is defined in this package. |
| * (If it is an inner class name, it is assumed to exist |
| * only if its binary file exists. This is somewhat pessimistic.) |
| */ |
| public boolean classExists(Identifier className) { |
| return getBinaryFile(className) != null || |
| !className.isInner() && |
| getSourceFile(className) != null; |
| } |
| |
| /** |
| * Check if the package exists |
| */ |
| public boolean exists() { |
| // Look for the directory on our binary path. |
| ClassFile dir = binaryPath.getDirectory(pkg); |
| if (dir != null && dir.isDirectory()) { |
| return true; |
| } |
| |
| if (sourcePath != binaryPath) { |
| // Look for the directory on our source path. |
| dir = sourcePath.getDirectory(pkg); |
| if (dir != null && dir.isDirectory()) { |
| return true; |
| } |
| } |
| |
| /* Accommodate ZIP files without CEN entries for directories |
| * (packages): look on class path for at least one binary |
| * file or one source file with the right package prefix |
| */ |
| String prefix = pkg + File.separator; |
| |
| return binaryPath.getFiles(prefix, ".class").hasMoreElements() |
| || sourcePath.getFiles(prefix, ".java").hasMoreElements(); |
| } |
| |
| private String makeName(String fileName) { |
| return pkg.equals("") ? fileName : pkg + File.separator + fileName; |
| } |
| |
| /** |
| * Get the .class file of a class |
| */ |
| public ClassFile getBinaryFile(Identifier className) { |
| className = Type.mangleInnerType(className); |
| String fileName = className.toString() + ".class"; |
| return binaryPath.getFile(makeName(fileName)); |
| } |
| |
| /** |
| * Get the .java file of a class |
| */ |
| public ClassFile getSourceFile(Identifier className) { |
| // The source file of an inner class is that of its outer class. |
| className = className.getTopName(); |
| String fileName = className.toString() + ".java"; |
| return sourcePath.getFile(makeName(fileName)); |
| } |
| |
| public ClassFile getSourceFile(String fileName) { |
| if (fileName.endsWith(".java")) { |
| return sourcePath.getFile(makeName(fileName)); |
| } |
| return null; |
| } |
| |
| public Enumeration getSourceFiles() { |
| return sourcePath.getFiles(pkg, ".java"); |
| } |
| |
| public Enumeration getBinaryFiles() { |
| return binaryPath.getFiles(pkg, ".class"); |
| } |
| |
| public String toString() { |
| if (pkg.equals("")) { |
| return "unnamed package"; |
| } |
| return "package " + pkg; |
| } |
| } |