/*
 * 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.
 *
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package jdk.tools.jlink.internal;

import java.io.IOException;
import java.io.InputStream;
import java.io.UncheckedIOException;
import java.nio.file.Path;
import java.util.Objects;
import java.util.stream.Stream;

import jdk.internal.jmod.JmodFile;
import jdk.tools.jlink.internal.Archive.Entry.EntryType;

An Archive backed by a jmod file.
/** * An Archive backed by a jmod file. */
public class JmodArchive implements Archive { private static final String JMOD_EXT = ".jmod";
An entry located in a jmod file.
/** * An entry located in a jmod file. */
public class JmodEntry extends Entry { private final JmodFile.Entry entry; JmodEntry(String path, String name, EntryType type, JmodFile.Entry entry) { super(JmodArchive.this, path, name, type); this.entry = Objects.requireNonNull(entry); }
Returns the number of uncompressed bytes for this entry.
/** * Returns the number of uncompressed bytes for this entry. */
@Override public long size() { return entry.size(); } @Override public InputStream stream() throws IOException { return jmodFile.getInputStream(entry.section(), entry.name()); } } private final Path file; private final String moduleName; private JmodFile jmodFile; public JmodArchive(String mn, Path jmod) { Objects.requireNonNull(mn); Objects.requireNonNull(jmod.getFileName()); String filename = jmod.toString(); if (!filename.endsWith(JMOD_EXT)) { throw new UnsupportedOperationException("Unsupported format: " + filename); } this.moduleName = mn; this.file = jmod; } @Override public String moduleName() { return moduleName; } @Override public Path getPath() { return file; } @Override public Stream<Entry> entries() { ensureOpen(); return jmodFile.stream() .map(this::toEntry); } @Override public void open() throws IOException { if (jmodFile != null) { jmodFile.close(); } this.jmodFile = new JmodFile(file); } @Override public void close() throws IOException { if (jmodFile != null) { jmodFile.close(); } } private void ensureOpen() { if (jmodFile == null) { try { open(); } catch(IOException ioe){ throw new UncheckedIOException(ioe); } } } private EntryType toEntryType(JmodFile.Section section) { switch (section) { case CLASSES: return EntryType.CLASS_OR_RESOURCE; case CONFIG: return EntryType.CONFIG; case HEADER_FILES: return EntryType.HEADER_FILE; case LEGAL_NOTICES: return EntryType.LEGAL_NOTICE; case MAN_PAGES: return EntryType.MAN_PAGE; case NATIVE_LIBS: return EntryType.NATIVE_LIB; case NATIVE_CMDS: return EntryType.NATIVE_CMD; default: throw new InternalError("unexpected entry: " + section); } } private Entry toEntry(JmodFile.Entry entry) { EntryType type = toEntryType(entry.section()); String prefix = entry.section().jmodDir(); String name = entry.name(); String path = prefix + "/" + name; String resourceName = name; // The resource name represents the path of ResourcePoolEntry // and its subpath defines the ultimate path to be written // to the image relative to the directory corresponding to that // resource type. // // For classes and resources, the resource name does not have // a prefix (<package>/<name>). They will be written to the jimage. // // For other kind of entries, it will keep the section name as // the prefix for unique identification. The subpath (taking // out the section name) is the pathname to be written to the // corresponding directory in the image. // if (type == EntryType.LEGAL_NOTICE) { // legal notices are written to per-module directory resourceName = prefix + "/" + moduleName + "/" + name; } else if (type != EntryType.CLASS_OR_RESOURCE) { resourceName = path; } return new JmodEntry(path, resourceName, type, entry); } @Override public int hashCode() { return Objects.hash(file, moduleName); } @Override public boolean equals(Object obj) { if (obj instanceof JmodArchive) { JmodArchive other = (JmodArchive)obj; return Objects.equals(file, other.file) && Objects.equals(moduleName, other.moduleName); } return false; } }