--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/jdk.dev/share/classes/com/sun/tools/jdeps/ModulesXmlReader.java Sun Aug 17 15:52:32 2014 +0100
@@ -0,0 +1,225 @@
+/*
+ * Copyright (c) 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.ClassFile;
+import com.sun.tools.jdeps.PlatformClassPath.LegacyImageHelper;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import javax.xml.namespace.QName;
+import javax.xml.stream.XMLEventReader;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamException;
+import javax.xml.stream.events.Attribute;
+import javax.xml.stream.events.XMLEvent;
+
+abstract class ModulesXmlReader {
+ abstract ClassFileReader getClassFileReader(String modulename, Set<String> packages)
+ throws IOException;
+
+ static class ImageReader extends ModulesXmlReader {
+ final LegacyImageHelper helper;
+ ImageReader(LegacyImageHelper helper) {
+ this.helper = helper;
+ }
+ ClassFileReader getClassFileReader(String modulename, Set<String> packages)
+ throws IOException
+ {
+ return helper.getClassReader(modulename, packages);
+ }
+ }
+
+ static class ModulePathReader extends ModulesXmlReader {
+ final Path mpath;
+ final ClassFileReader defaultReader;
+ ModulePathReader(Path mp) throws IOException {
+ this.mpath = mp;
+ this.defaultReader = new NonExistModuleReader(mpath);
+ }
+ ClassFileReader getClassFileReader(String modulename, Set<String> packages)
+ throws IOException
+ {
+ Path mdir = mpath.resolve(modulename);
+ if (Files.exists(mdir) && Files.isDirectory(mdir)) {
+ return ClassFileReader.newInstance(mdir);
+ } else {
+ // aggregator module or os-specific module in modules.xml
+ // mdir not exist
+ return defaultReader;
+ }
+ }
+ class NonExistModuleReader extends ClassFileReader {
+ private final List<ClassFile> classes = Collections.emptyList();
+ private NonExistModuleReader(Path mpath) {
+ super(mpath);
+ }
+
+ public ClassFile getClassFile(String name) throws IOException {
+ return null;
+ }
+ public Iterable<ClassFile> getClassFiles() throws IOException {
+ return classes;
+ }
+ }
+ }
+
+ public static Set<Module> load(Path mpath, InputStream in)
+ throws IOException
+ {
+ try {
+ ModulePathReader reader = new ModulePathReader(mpath);
+ return reader.load(in);
+ } catch (XMLStreamException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ public static Set<Module> loadFromImage(LegacyImageHelper helper, InputStream in)
+ throws IOException
+ {
+ try {
+ ImageReader reader = new ImageReader(helper);
+ return reader.load(in);
+ } catch (XMLStreamException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ private static final String MODULES = "modules";
+ private static final String MODULE = "module";
+ private static final String NAME = "name";
+ private static final String DEPEND = "depend";
+ private static final String EXPORT = "export";
+ private static final String TO = "to";
+ private static final String INCLUDE = "include";
+ private static final QName REEXPORTS = new QName("re-exports");
+ public Set<Module> load(InputStream in) throws XMLStreamException, IOException {
+ Set<Module> modules = new HashSet<>();
+ if (in == null) {
+ System.err.println("WARNING: modules.xml doesn't exist");
+ return modules;
+ }
+ XMLInputFactory factory = XMLInputFactory.newInstance();
+ XMLEventReader reader = factory.createXMLEventReader(in, "UTF-8");
+ Module.Builder mb = null;
+ String modulename = null;
+ String exportedPackage = null;
+ Set<String> permits = new HashSet<>();
+ while (reader.hasNext()) {
+ XMLEvent event = reader.nextEvent();
+ if (event.isStartElement()) {
+ String startTag = event.asStartElement().getName().getLocalPart();
+ switch (startTag) {
+ case MODULES:
+ break;
+ case MODULE:
+ if (mb != null) {
+ throw new RuntimeException("end tag for module is missing");
+ }
+ modulename = getNextTag(reader, NAME);
+ mb = new Module.Builder();
+ mb.name(modulename);
+ break;
+ case NAME:
+ throw new RuntimeException(event.toString());
+ case DEPEND:
+ boolean reexports = false;
+ Attribute attr = event.asStartElement().getAttributeByName(REEXPORTS);
+ if (attr != null) {
+ String value = attr.getValue();
+ if (value.equals("true") || value.equals("false")) {
+ reexports = Boolean.parseBoolean(value);
+ } else {
+ throw new RuntimeException("unexpected attribute " + attr.toString());
+ }
+ }
+ mb.require(getData(reader), reexports);
+ break;
+ case INCLUDE:
+ mb.include(getData(reader));
+ break;
+ case EXPORT:
+ exportedPackage = getNextTag(reader, NAME);
+ break;
+ case TO:
+ permits.add(getData(reader));
+ break;
+ default:
+ throw new RuntimeException("invalid element: " + event);
+ }
+ } else if (event.isEndElement()) {
+ String endTag = event.asEndElement().getName().getLocalPart();
+ switch (endTag) {
+ case MODULE:
+ ClassFileReader cfr = getClassFileReader(modulename, mb.packages);
+ mb.classes(cfr);
+ modules.add(mb.build());
+ mb = null;
+ break;
+ case EXPORT:
+ if (exportedPackage == null) {
+ throw new RuntimeException("export's name is missing");
+ }
+ mb.export(exportedPackage, permits);
+ exportedPackage = null;
+ permits.clear();
+ break;
+ default:
+ }
+ } else if (event.isCharacters()) {
+ String s = event.asCharacters().getData();
+ if (!s.trim().isEmpty()) {
+ throw new RuntimeException("export-to is malformed");
+ }
+ }
+ }
+ return modules;
+ }
+ private String getData(XMLEventReader reader) throws XMLStreamException {
+ XMLEvent e = reader.nextEvent();
+ if (e.isCharacters()) {
+ return e.asCharacters().getData();
+ }
+ throw new RuntimeException(e.toString());
+ }
+
+ private String getNextTag(XMLEventReader reader, String tag) throws XMLStreamException {
+ XMLEvent e = reader.nextTag();
+ if (e.isStartElement()) {
+ String t = e.asStartElement().getName().getLocalPart();
+ if (!tag.equals(t)) {
+ throw new RuntimeException(e + " expected: " + tag);
+ }
+ return getData(reader);
+ }
+ throw new RuntimeException("export-to name is missing:" + e);
+ }
+}