| /* |
| * Copyright (c) 2012, 2014, 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 com.sun.tools.jdeps; |
| |
| import com.sun.tools.classfile.Dependency.Location; |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| import java.io.UncheckedIOException; |
| import java.net.URI; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.Paths; |
| import java.util.HashSet; |
| import java.util.Map; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.stream.Stream; |
| |
| /** |
| * Represents the source of the class files. |
| */ |
| public class Archive implements Closeable { |
| public static Archive getInstance(Path p, Runtime.Version version) { |
| try { |
| return new Archive(p, ClassFileReader.newInstance(p, version)); |
| } catch (IOException e) { |
| throw new UncheckedIOException(e); |
| } |
| } |
| |
| private final URI location; |
| private final Path path; |
| private final String filename; |
| private final ClassFileReader reader; |
| |
| protected Map<Location, Set<Location>> deps = new ConcurrentHashMap<>(); |
| |
| protected Archive(String name) { |
| this(name, null, null); |
| } |
| protected Archive(String name, URI location, ClassFileReader reader) { |
| this.location = location; |
| this.path = location != null ? Paths.get(location) : null; |
| this.filename = name; |
| this.reader = reader; |
| } |
| protected Archive(Path p, ClassFileReader reader) { |
| this.location = null; |
| this.path = p; |
| this.filename = path.getFileName().toString(); |
| this.reader = reader; |
| } |
| |
| public ClassFileReader reader() { |
| return reader; |
| } |
| |
| public String getName() { |
| return filename; |
| } |
| |
| public Module getModule() { |
| return Module.UNNAMED_MODULE; |
| } |
| |
| public boolean contains(String entry) { |
| return reader.entries().contains(entry); |
| } |
| |
| public void addClass(Location origin) { |
| deps.computeIfAbsent(origin, _k -> new HashSet<>()); |
| } |
| |
| public void addClass(Location origin, Location target) { |
| deps.computeIfAbsent(origin, _k -> new HashSet<>()).add(target); |
| } |
| |
| public Set<Location> getClasses() { |
| return deps.keySet(); |
| } |
| |
| public Stream<Location> getDependencies() { |
| return deps.values().stream() |
| .flatMap(Set::stream); |
| } |
| |
| public boolean hasDependences() { |
| return getDependencies().count() > 0; |
| } |
| |
| public void visitDependences(Visitor v) { |
| for (Map.Entry<Location,Set<Location>> e: deps.entrySet()) { |
| for (Location target : e.getValue()) { |
| v.visit(e.getKey(), target); |
| } |
| } |
| } |
| |
| /** |
| * Tests if any class has been parsed. |
| */ |
| public boolean isEmpty() { |
| return getClasses().isEmpty(); |
| } |
| |
| public String getPathName() { |
| return path != null ? path.toString() : filename; |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(this.filename, this.path); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (o instanceof Archive) { |
| Archive other = (Archive)o; |
| if (path == other.path || isSameLocation(this, other)) |
| return true; |
| } |
| return false; |
| } |
| |
| @Override |
| public String toString() { |
| return filename; |
| } |
| |
| public Path path() { |
| return path; |
| } |
| |
| public static boolean isSameLocation(Archive archive, Archive other) { |
| if (archive.path == null || other.path == null) |
| return false; |
| |
| if (archive.location != null && other.location != null && |
| archive.location.equals(other.location)) { |
| return true; |
| } |
| |
| if (archive.isJrt() || other.isJrt()) { |
| return false; |
| } |
| |
| try { |
| return Files.isSameFile(archive.path, other.path); |
| } catch (IOException e) { |
| throw new UncheckedIOException(e); |
| } |
| } |
| |
| private boolean isJrt() { |
| return location != null && location.getScheme().equals("jrt"); |
| } |
| |
| @Override |
| public void close() throws IOException { |
| if (reader != null) |
| reader.close(); |
| } |
| |
| interface Visitor { |
| void visit(Location origin, Location target); |
| } |
| } |