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src/share/classes/com/sun/tools/sjavac/Source.java@2eb010b6cb22 (annotated)

src/share/classes/com/sun/tools/sjavac/Source.java

Thu, 31 Aug 2017 15:17:03 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:17:03 +0800

changeset 2525

2eb010b6cb22

parent 2227

998b10c43157

parent 0

959103a6100f

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package com.sun.tools.sjavac;
aoqi@0	27
aoqi@0	28	import java.io.File;
aoqi@0	29	import java.util.Set;
aoqi@0	30	import java.util.Collections;
aoqi@0	31	import java.util.List;
aoqi@0	32	import java.util.ArrayList;
aoqi@0	33	import java.util.Map;
aoqi@0	34
aoqi@0	35	/** A Source object maintains information about a source file.
aoqi@0	36	* For example which package it belongs to and kind of source it is.
aoqi@0	37	* The class also knows how to find source files (scanRoot) given include/exclude
aoqi@0	38	* patterns and a root.
aoqi@0	39	*
aoqi@0	40	* <p><b>This is NOT part of any supported API.
aoqi@0	41	* If you write code that depends on this, you do so at your own
aoqi@0	42	* risk. This code and its internal interfaces are subject to change
aoqi@0	43	* or deletion without notice.</b></p>
aoqi@0	44	*/
aoqi@0	45	public class Source implements Comparable<Source> {
aoqi@0	46	// The package the source belongs to.
aoqi@0	47	private Package pkg;
aoqi@0	48	// Name of this source file, relative its source root.
aoqi@0	49	// For example: java/lang/Object.java
aoqi@0	50	// Or if the source file is inside a module:
aoqi@0	51	// jdk.base/java/lang/Object.java
aoqi@0	52	private String name;
aoqi@0	53	// What kind of file is this.
aoqi@0	54	private String suffix;
aoqi@0	55	// When this source file was last_modified
aoqi@0	56	private long lastModified;
aoqi@0	57	// The source File.
aoqi@0	58	private File file;
aoqi@0	59	// The source root under which file resides.
aoqi@0	60	private File root;
aoqi@0	61	// If the source is generated.
aoqi@0	62	private boolean isGenerated;
aoqi@0	63	// If the source is only linked to, not compiled.
aoqi@0	64	private boolean linkedOnly;
aoqi@0	65
aoqi@0	66	@Override
aoqi@0	67	public boolean equals(Object o) {
aoqi@0	68	return (o instanceof Source) && name.equals(((Source)o).name);
aoqi@0	69	}
aoqi@0	70
aoqi@0	71	@Override
aoqi@0	72	public int compareTo(Source o) {
aoqi@0	73	return name.compareTo(o.name);
aoqi@0	74	}
aoqi@0	75
aoqi@0	76	@Override
aoqi@0	77	public int hashCode() {
aoqi@0	78	return name.hashCode();
aoqi@0	79	}
aoqi@0	80
aoqi@0	81	public Source(Module m, String n, File f, File r) {
aoqi@0	82	name = n;
aoqi@0	83	int dp = n.lastIndexOf(".");
aoqi@0	84	if (dp != -1) {
aoqi@0	85	suffix = n.substring(dp);
aoqi@0	86	} else {
aoqi@0	87	suffix = "";
aoqi@0	88	}
aoqi@0	89	file = f;
aoqi@0	90	root = r;
aoqi@0	91	lastModified = f.lastModified();
aoqi@0	92	linkedOnly = false;
aoqi@0	93	}
aoqi@0	94
aoqi@0	95	public Source(Package p, String n, long lm) {
aoqi@0	96	pkg = p;
aoqi@0	97	name = n;
aoqi@0	98	int dp = n.lastIndexOf(".");
aoqi@0	99	if (dp != -1) {
aoqi@0	100	suffix = n.substring(dp);
aoqi@0	101	} else {
aoqi@0	102	suffix = "";
aoqi@0	103	}
aoqi@0	104	file = null;
aoqi@0	105	root = null;
aoqi@0	106	lastModified = lm;
aoqi@0	107	linkedOnly = false;
aoqi@0	108	int ls = n.lastIndexOf('/');
aoqi@0	109	}
aoqi@0	110
aoqi@0	111	public String name() { return name; }
aoqi@0	112	public String suffix() { return suffix; }
aoqi@0	113	public Package pkg() { return pkg; }
aoqi@0	114	public File file() { return file; }
aoqi@0	115	public File root() { return root; }
aoqi@0	116	public long lastModified() {
aoqi@0	117	return lastModified;
aoqi@0	118	}
aoqi@0	119
aoqi@0	120	public void setPackage(Package p) {
aoqi@0	121	pkg = p;
aoqi@0	122	}
aoqi@0	123
aoqi@0	124	public void markAsGenerated() {
aoqi@0	125	isGenerated = true;
aoqi@0	126	}
aoqi@0	127
aoqi@0	128	public boolean isGenerated() {
aoqi@0	129	return isGenerated;
aoqi@0	130	}
aoqi@0	131
aoqi@0	132	public void markAsLinkedOnly() {
aoqi@0	133	linkedOnly = true;
aoqi@0	134	}
aoqi@0	135
aoqi@0	136	public boolean isLinkedOnly() {
aoqi@0	137	return linkedOnly;
aoqi@0	138	}
aoqi@0	139
aoqi@0	140	private void save(StringBuilder b) {
aoqi@0	141	String CL = linkedOnly?"L":"C";
aoqi@0	142	String GS = isGenerated?"G":"S";
aoqi@0	143	b.append(GS+" "+CL+" "+name+" "+file.lastModified()+"\n");
aoqi@0	144	}
aoqi@0	145	// Parse a line that looks like this:
aoqi@0	146	// S C /code/alfa/A.java 1357631228000
aoqi@0	147	static public Source load(Package lastPackage, String l, boolean isGenerated) {
aoqi@0	148	int sp = l.indexOf(' ',4);
aoqi@0	149	if (sp == -1) return null;
aoqi@0	150	String name = l.substring(4,sp);
aoqi@0	151	long last_modified = Long.parseLong(l.substring(sp+1));
aoqi@0	152
aoqi@0	153	boolean isLinkedOnly = false;
aoqi@0	154	if (l.charAt(2) == 'L') {
aoqi@0	155	isLinkedOnly = true;
aoqi@0	156	} else if (l.charAt(2) == 'C') {
aoqi@0	157	isLinkedOnly = false;
aoqi@0	158	} else return null;
aoqi@0	159
aoqi@0	160	Source s = new Source(lastPackage, name, last_modified);
aoqi@0	161	s.file = new File(name);
aoqi@0	162	if (isGenerated) s.markAsGenerated();
aoqi@0	163	if (isLinkedOnly) s.markAsLinkedOnly();
aoqi@0	164	return s;
aoqi@0	165	}
aoqi@0	166
aoqi@0	167	public static void saveSources(Map<String,Source> sources, StringBuilder b) {
aoqi@0	168	List<String> sorted_sources = new ArrayList<String>();
aoqi@0	169	for (String key : sources.keySet()) {
aoqi@0	170	sorted_sources.add(key);
aoqi@0	171	}
aoqi@0	172	Collections.sort(sorted_sources);
aoqi@0	173	for (String key : sorted_sources) {
aoqi@0	174	Source s = sources.get(key);
aoqi@0	175	s.save(b);
aoqi@0	176	}
aoqi@0	177	}
aoqi@0	178
aoqi@0	179	/**
aoqi@0	180	* Recurse into the directory root and find all files matchine the excl/incl/exclfiles/inclfiles rules.
aoqi@0	181	* Detects the existence of module-info.java files and presumes that the directory it resides in
aoqi@0	182	* is the name of the current module.
aoqi@0	183	*/
aoqi@0	184	static public void scanRoot(File root,
aoqi@0	185	Set<String> suffixes,
aoqi@0	186	List<String> excludes, List<String> includes,
aoqi@0	187	List<String> excludeFiles, List<String> includeFiles,
aoqi@0	188	Map<String,Source> foundFiles,
aoqi@0	189	Map<String,Module> foundModules,
aoqi@0	190	Module currentModule,
aoqi@0	191	boolean permitSourcesWithoutPackage,
aoqi@0	192	boolean inGensrc,
aoqi@0	193	boolean inLinksrc)
aoqi@0	194	throws ProblemException {
aoqi@0	195
aoqi@0	196	if (root == null) return;
aoqi@0	197	int root_prefix = root.getPath().length()+1;
aoqi@0	198	// This is the root source directory, it must not contain any Java sources files
aoqi@0	199	// because we do not allow Java source files without a package.
aoqi@0	200	// (Unless of course --permit-sources-without-package has been specified.)
aoqi@0	201	// It might contain other source files however, (for -tr and -copy) these will
aoqi@0	202	// always be included, since no package pattern can match the root directory.
aoqi@0	203	currentModule = addFilesInDir(root, root_prefix, root, suffixes, permitSourcesWithoutPackage,
aoqi@0	204	excludeFiles, includeFiles, false,
aoqi@0	205	foundFiles, foundModules, currentModule,
aoqi@0	206	inGensrc, inLinksrc);
aoqi@0	207
aoqi@0	208	File[] dirfiles = root.listFiles();
aoqi@0	209	for (File d : dirfiles) {
aoqi@0	210	if (d.isDirectory()) {
aoqi@0	211	// Descend into the directory structure.
aoqi@0	212	scanDirectory(d, root_prefix, root, suffixes,
aoqi@0	213	excludes, includes, excludeFiles, includeFiles,
aoqi@0	214	false, foundFiles, foundModules, currentModule, inGensrc, inLinksrc);
aoqi@0	215	}
aoqi@0	216	}
aoqi@0	217	}
aoqi@0	218
aoqi@0	219	/**
aoqi@0	220	* Test if a path matches any of the patterns given.
aoqi@0	221	* The pattern foo.bar matches only foo.bar
aoqi@0	222	* The pattern foo.* matches foo.bar and foo.bar.zoo etc
aoqi@0	223	*/
aoqi@0	224	static private boolean hasMatch(String path, List<String> patterns) {
aoqi@0	225	for (String p : patterns) {
aoqi@0	226	// Exact match
aoqi@0	227	if (p.equals(path)) {
aoqi@0	228	return true;
aoqi@0	229	}
aoqi@0	230	// Single dot the end matches this package and all its subpackages.
aoqi@0	231	if (p.endsWith(".*")) {
aoqi@0	232	// Remove the wildcard
aoqi@0	233	String patprefix = p.substring(0,p.length()-2);
aoqi@0	234	// Does the path start with the pattern prefix?
aoqi@0	235	if (path.startsWith(patprefix)) {
aoqi@0	236	// If the path has the same length as the pattern prefix, then it is a match.
aoqi@0	237	// If the path is longer, then make sure that
aoqi@0	238	// the next part of the path starts with a dot (.) to prevent
aoqi@0	239	// wildcard matching in the middle of a package name.
aoqi@0	240	if (path.length()==patprefix.length() || path.charAt(patprefix.length())=='.') {
aoqi@0	241	return true;
aoqi@0	242	}
aoqi@0	243	}
aoqi@0	244	}
aoqi@0	245	}
aoqi@0	246	return false;
aoqi@0	247	}
aoqi@0	248
aoqi@0	249	/**
aoqi@0	250	* Matches patterns with the asterisk first. */
aoqi@0	251	// The pattern foo/bar.java only matches foo/bar.java
aoqi@0	252	// The pattern */bar.java matches foo/bar.java and zoo/bar.java etc
aoqi@0	253	static private boolean hasFileMatch(String path, List<String> patterns) {
aoqi@0	254	path = Util.normalizeDriveLetter(path);
aoqi@0	255	for (String p : patterns) {
aoqi@0	256	// Exact match
aoqi@0	257	if (p.equals(path)) {
aoqi@0	258	return true;
aoqi@0	259	}
aoqi@0	260	// Single dot the end matches this package and all its subpackages.
aoqi@0	261	if (p.startsWith("*")) {
aoqi@0	262	// Remove the wildcard
aoqi@0	263	String patsuffix = p.substring(1);
aoqi@0	264	// Does the path start with the pattern prefix?
aoqi@0	265	if (path.endsWith(patsuffix)) {
aoqi@0	266	return true;
aoqi@0	267	}
aoqi@0	268	}
aoqi@0	269	}
aoqi@0	270	return false;
aoqi@0	271	}
aoqi@0	272
aoqi@0	273	/**
aoqi@0	274	* Add the files in the directory, assuming that the file has not been excluded.
aoqi@0	275	* Returns a fresh Module object, if this was a dir with a module-info.java file.
aoqi@0	276	*/
aoqi@0	277	static private Module addFilesInDir(File dir, int rootPrefix, File root,
aoqi@0	278	Set<String> suffixes, boolean allow_javas,
aoqi@0	279	List<String> excludeFiles, List<String> includeFiles, boolean all,
aoqi@0	280	Map<String,Source> foundFiles,
aoqi@0	281	Map<String,Module> foundModules,
aoqi@0	282	Module currentModule,
aoqi@0	283	boolean inGensrc,
aoqi@0	284	boolean inLinksrc)
aoqi@0	285	throws ProblemException
aoqi@0	286	{
aoqi@0	287	for (File f : dir.listFiles()) {
aoqi@0	288	if (f.isFile()) {
aoqi@0	289	boolean should_add =
aoqi@0	290	(excludeFiles == null || excludeFiles.isEmpty() || !hasFileMatch(f.getPath(), excludeFiles))
aoqi@0	291	&& (includeFiles == null || includeFiles.isEmpty() || hasFileMatch(f.getPath(), includeFiles));
aoqi@0	292
aoqi@0	293	if (should_add) {
aoqi@0	294	if (!allow_javas && f.getName().endsWith(".java")) {
aoqi@0	295	throw new ProblemException("No .java files are allowed in the source root "+dir.getPath()+
aoqi@0	296	", please remove "+f.getName());
aoqi@0	297	}
aoqi@0	298	// Extract the file name relative the root.
aoqi@0	299	String fn = f.getPath().substring(rootPrefix);
aoqi@0	300	// Extract the package name.
aoqi@0	301	int sp = fn.lastIndexOf(File.separatorChar);
aoqi@0	302	String pkg = "";
aoqi@0	303	if (sp != -1) {
aoqi@0	304	pkg = fn.substring(0,sp).replace(File.separatorChar,'.');
aoqi@0	305	}
aoqi@0	306	// Is this a module-info.java file?
aoqi@0	307	if (fn.endsWith("module-info.java")) {
aoqi@0	308	// Aha! We have recursed into a module!
aoqi@0	309	if (!currentModule.name().equals("")) {
aoqi@0	310	throw new ProblemException("You have an extra module-info.java inside a module! Please remove "+fn);
aoqi@0	311	}
aoqi@0	312	String module_name = fn.substring(0,fn.length()-16);
aoqi@0	313	currentModule = new Module(module_name, f.getPath());
aoqi@0	314	foundModules.put(module_name, currentModule);
aoqi@0	315	}
aoqi@0	316	// Extract the suffix.
aoqi@0	317	int dp = fn.lastIndexOf(".");
aoqi@0	318	String suffix = "";
aoqi@0	319	if (dp > 0) {
aoqi@0	320	suffix = fn.substring(dp);
aoqi@0	321	}
aoqi@0	322	// Should the file be added?
aoqi@0	323	if (all || suffixes.contains(suffix)) {
aoqi@0	324	Source of = foundFiles.get(f.getPath());
aoqi@0	325	if (of != null) {
aoqi@0	326	throw new ProblemException("You have already added the file "+fn+" from "+of.file().getPath());
aoqi@0	327	}
aoqi@0	328	of = currentModule.lookupSource(f.getPath());
aoqi@0	329	if (of != null) {
aoqi@0	330	// Oups, the source is already added, could be ok, could be not, lets check.
aoqi@0	331	if (inLinksrc) {
aoqi@0	332	// So we are collecting sources for linking only.
aoqi@0	333	if (of.isLinkedOnly()) {
aoqi@0	334	// Ouch, this one is also for linking only. Bad.
aoqi@0	335	throw new ProblemException("You have already added the link only file "+fn+" from "+of.file().getPath());
aoqi@0	336	}
aoqi@0	337	// Ok, the existing source is to be compiled. Thus this link only is redundant
aoqi@0	338	// since all compiled are also linked to. Continue to the next source.
aoqi@0	339	// But we need to add the source, so that it will be visible to linking,
aoqi@0	340	// if not the multi core compile will fail because a JavaCompiler cannot
aoqi@0	341	// find the necessary dependencies for its part of the source.
aoqi@0	342	foundFiles.put(f.getPath(), of);
aoqi@0	343	continue;
aoqi@0	344	} else {
aoqi@0	345	// We are looking for sources to compile, if we find an existing to be compiled
aoqi@0	346	// source with the same name, it is an internal error, since we must
aoqi@0	347	// find the sources to be compiled before we find the sources to be linked to.
aoqi@0	348	throw new ProblemException("Internal error: Double add of file "+fn+" from "+of.file().getPath());
aoqi@0	349	}
aoqi@0	350	}
aoqi@0	351	Source s = new Source(currentModule, f.getPath(), f, root);
aoqi@0	352	if (inGensrc) s.markAsGenerated();
aoqi@0	353	if (inLinksrc) {
aoqi@0	354	s.markAsLinkedOnly();
aoqi@0	355	}
aoqi@0	356	pkg = currentModule.name()+":"+pkg;
aoqi@0	357	foundFiles.put(f.getPath(), s);
aoqi@0	358	currentModule.addSource(pkg, s);
aoqi@0	359	}
aoqi@0	360	}
aoqi@0	361	}
aoqi@0	362	}
aoqi@0	363	return currentModule;
aoqi@0	364	}
aoqi@0	365
aoqi@0	366	private static boolean gurka = false;
aoqi@0	367
aoqi@0	368	static private void scanDirectory(File dir, int rootPrefix, File root,
aoqi@0	369	Set<String> suffixes,
aoqi@0	370	List<String> excludes, List<String> includes,
aoqi@0	371	List<String> excludeFiles, List<String> includeFiles, boolean all,
aoqi@0	372	Map<String,Source> foundFiles,
aoqi@0	373	Map<String,Module> foundModules,
aoqi@0	374	Module currentModule, boolean inGensrc, boolean inLinksrc)
aoqi@0	375	throws ProblemException {
aoqi@0	376
aoqi@0	377	String pkg_name = "";
aoqi@0	378	// Remove the root prefix from the dir path, and replace file separator with dots
aoqi@0	379	// to get the package name.
aoqi@0	380	if (dir.getPath().length() > rootPrefix) {
aoqi@0	381	pkg_name = dir.getPath().substring(rootPrefix).replace(File.separatorChar,'.');
aoqi@0	382	}
aoqi@0	383	// Should this package directory be included and not excluded?
aoqi@0	384	if (all || ((includes==null || includes.isEmpty() || hasMatch(pkg_name, includes)) &&
aoqi@0	385	(excludes==null || excludes.isEmpty() || !hasMatch(pkg_name, excludes)))) {
aoqi@0	386	// Add the source files.
aoqi@0	387	currentModule = addFilesInDir(dir, rootPrefix, root, suffixes, true, excludeFiles, includeFiles, all,
aoqi@0	388	foundFiles, foundModules, currentModule, inGensrc, inLinksrc);
aoqi@0	389	}
aoqi@0	390
aoqi@0	391	for (File d : dir.listFiles()) {
aoqi@0	392	if (d.isDirectory()) {
aoqi@0	393	// Descend into the directory structure.
aoqi@0	394	scanDirectory(d, rootPrefix, root, suffixes,
aoqi@0	395	excludes, includes, excludeFiles, includeFiles, all,
aoqi@0	396	foundFiles, foundModules, currentModule, inGensrc, inLinksrc);
aoqi@0	397	}
aoqi@0	398	}
aoqi@0	399	}
aoqi@0	400	}