jdk8-mips64-public/langtools: comparison src/share/classes/com/sun/tools/sjavac/Source.java

--1:000000000000
+:959103a6100f
+/*
+* Copyright (c) 2012, 2013, 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.sjavac;
+import java.io.File;
+import java.util.Set;
+import java.util.Collections;
+import java.util.List;
+import java.util.ArrayList;
+import java.util.Map;
+/** A Source object maintains information about a source file.
+* For example which package it belongs to and kind of source it is.
+* The class also knows how to find source files (scanRoot) given include/exclude
+* patterns and a root.
+*
+* <p><b>This is NOT part of any supported API.
+* If you write code that depends on this, you do so at your own
+* risk.  This code and its internal interfaces are subject to change
+* or deletion without notice.</b></p>
+*/
+public class Source implements Comparable<Source> {
+// The package the source belongs to.
+private Package pkg;
+// Name of this source file, relative its source root.
+// For example: java/lang/Object.java
+// Or if the source file is inside a module:
+// jdk.base/java/lang/Object.java
+private String name;
+// What kind of file is this.
+private String suffix;
+// When this source file was last_modified
+private long lastModified;
+// The source File.
+private File file;
+// The source root under which file resides.
+private File root;
+// If the source is generated.
+private boolean isGenerated;
+// If the source is only linked to, not compiled.
+private boolean linkedOnly;
+@Override
+public boolean equals(Object o) {
+return (o instanceof Source) && name.equals(((Source)o).name);
+}
+@Override
+public int compareTo(Source o) {
+return name.compareTo(o.name);
+}
+@Override
+public int hashCode() {
+return name.hashCode();
+}
+public Source(Module m, String n, File f, File r) {
+name = n;
+int dp = n.lastIndexOf(".");
+if (dp != -1) {
+suffix = n.substring(dp);
+} else {
+suffix = "";
+}
+file = f;
+root = r;
+lastModified = f.lastModified();
+linkedOnly = false;
+}
+public Source(Package p, String n, long lm) {
+pkg = p;
+name = n;
+int dp = n.lastIndexOf(".");
+if (dp != -1) {
+suffix = n.substring(dp);
+} else {
+suffix = "";
+}
+file = null;
+root = null;
+lastModified = lm;
+linkedOnly = false;
+int ls = n.lastIndexOf('/');
+}
+public String name() { return name; }
+public String suffix() { return suffix; }
+public Package pkg() { return pkg; }
+public File   file() { return file; }
+public File   root() { return root; }
+public long lastModified() {
+return lastModified;
+}
+public void setPackage(Package p) {
+pkg = p;
+}
+public void markAsGenerated() {
+isGenerated = true;
+}
+public boolean isGenerated() {
+return isGenerated;
+}
+public void markAsLinkedOnly() {
+linkedOnly = true;
+}
+public boolean isLinkedOnly() {
+return linkedOnly;
+}
+private void save(StringBuilder b) {
+String CL = linkedOnly?"L":"C";
+String GS = isGenerated?"G":"S";
+b.append(GS+" "+CL+" "+name+" "+file.lastModified()+"\n");
+}
+// Parse a line that looks like this:
+// S C /code/alfa/A.java 1357631228000
+static public Source load(Package lastPackage, String l, boolean isGenerated) {
+int sp = l.indexOf(' ',4);
+if (sp == -1) return null;
+String name = l.substring(4,sp);
+long last_modified = Long.parseLong(l.substring(sp+1));
+boolean isLinkedOnly = false;
+if (l.charAt(2) == 'L') {
+isLinkedOnly = true;
+} else if (l.charAt(2) == 'C') {
+isLinkedOnly = false;
+} else return null;
+Source s = new Source(lastPackage, name, last_modified);
+s.file = new File(name);
+if (isGenerated) s.markAsGenerated();
+if (isLinkedOnly) s.markAsLinkedOnly();
+return s;
+}
+public static void saveSources(Map<String,Source> sources, StringBuilder b) {
+List<String> sorted_sources = new ArrayList<String>();
+for (String key : sources.keySet()) {
+sorted_sources.add(key);
+}
+Collections.sort(sorted_sources);
+for (String key : sorted_sources) {
+Source s = sources.get(key);
+s.save(b);
+}
+}
+/**
+* Recurse into the directory root and find all files matchine the excl/incl/exclfiles/inclfiles rules.
+* Detects the existence of module-info.java files and presumes that the directory it resides in
+* is the name of the current module.
+*/
+static public void scanRoot(File root,
+Set<String> suffixes,
+List<String> excludes, List<String> includes,
+List<String> excludeFiles, List<String> includeFiles,
+Map<String,Source> foundFiles,
+Map<String,Module> foundModules,
+Module currentModule,
+boolean permitSourcesWithoutPackage,
+boolean inGensrc,
+boolean inLinksrc)
+throws ProblemException {
+if (root == null) return;
+int root_prefix = root.getPath().length()+1;
+// This is the root source directory, it must not contain any Java sources files
+// because we do not allow Java source files without a package.
+// (Unless of course --permit-sources-without-package has been specified.)
+// It might contain other source files however, (for -tr and -copy) these will
+// always be included, since no package pattern can match the root directory.
+currentModule = addFilesInDir(root, root_prefix, root, suffixes, permitSourcesWithoutPackage,
+excludeFiles, includeFiles, false,
+foundFiles, foundModules, currentModule,
+inGensrc, inLinksrc);
+File[] dirfiles = root.listFiles();
+for (File d : dirfiles) {
+if (d.isDirectory()) {
+// Descend into the directory structure.
+scanDirectory(d, root_prefix, root, suffixes,
+excludes, includes, excludeFiles, includeFiles,
+false, foundFiles, foundModules, currentModule, inGensrc, inLinksrc);
+}
+}
+}
+/**
+* Test if a path matches any of the patterns given.
+* The pattern foo.bar matches only foo.bar
+* The pattern foo.* matches foo.bar and foo.bar.zoo etc
+*/
+static private boolean hasMatch(String path, List<String> patterns) {
+for (String p : patterns) {
+// Exact match
+if (p.equals(path)) {
+return true;
+}
+// Single dot the end matches this package and all its subpackages.
+if (p.endsWith(".*")) {
+// Remove the wildcard
+String patprefix = p.substring(0,p.length()-2);
+// Does the path start with the pattern prefix?
+if (path.startsWith(patprefix)) {
+// If the path has the same length as the pattern prefix, then it is a match.
+// If the path is longer, then make sure that
+// the next part of the path starts with a dot (.) to prevent
+// wildcard matching in the middle of a package name.
+if (path.length()==patprefix.length() || path.charAt(patprefix.length())=='.') {
+return true;
+}
+}
+}
+}
+return false;
+}
+/**
+* Matches patterns with the asterisk first. */
+// The pattern foo/bar.java only matches foo/bar.java
+// The pattern */bar.java matches foo/bar.java and zoo/bar.java etc
+static private boolean hasFileMatch(String path, List<String> patterns) {
+path = Util.normalizeDriveLetter(path);
+for (String p : patterns) {
+// Exact match
+if (p.equals(path)) {
+return true;
+}
+// Single dot the end matches this package and all its subpackages.
+if (p.startsWith("*")) {
+// Remove the wildcard
+String patsuffix = p.substring(1);
+// Does the path start with the pattern prefix?
+if (path.endsWith(patsuffix)) {
+return true;
+}
+}
+}
+return false;
+}
+/**
+* Add the files in the directory, assuming that the file has not been excluded.
+* Returns a fresh Module object, if this was a dir with a module-info.java file.
+*/
+static private Module addFilesInDir(File dir, int rootPrefix, File root,
+Set<String> suffixes, boolean allow_javas,
+List<String> excludeFiles, List<String> includeFiles, boolean all,
+Map<String,Source> foundFiles,
+Map<String,Module> foundModules,
+Module currentModule,
+boolean inGensrc,
+boolean inLinksrc)
+throws ProblemException
+{
+for (File f : dir.listFiles()) {
+if (f.isFile()) {
+boolean should_add =
+(excludeFiles == null || excludeFiles.isEmpty() || !hasFileMatch(f.getPath(), excludeFiles))
+&& (includeFiles == null || includeFiles.isEmpty() || hasFileMatch(f.getPath(), includeFiles));
+if (should_add) {
+if (!allow_javas && f.getName().endsWith(".java")) {
+throw new ProblemException("No .java files are allowed in the source root "+dir.getPath()+
+", please remove "+f.getName());
+}
+// Extract the file name relative the root.
+String fn = f.getPath().substring(rootPrefix);
+// Extract the package name.
+int sp = fn.lastIndexOf(File.separatorChar);
+String pkg = "";
+if (sp != -1) {
+pkg = fn.substring(0,sp).replace(File.separatorChar,'.');
+}
+// Is this a module-info.java file?
+if (fn.endsWith("module-info.java")) {
+// Aha! We have recursed into a module!
+if (!currentModule.name().equals("")) {
+throw new ProblemException("You have an extra module-info.java inside a module! Please remove "+fn);
+}
+String module_name = fn.substring(0,fn.length()-16);
+currentModule = new Module(module_name, f.getPath());
+foundModules.put(module_name, currentModule);
+}
+// Extract the suffix.
+int dp = fn.lastIndexOf(".");
+String suffix = "";
+if (dp > 0) {
+suffix = fn.substring(dp);
+}
+// Should the file be added?
+if (all || suffixes.contains(suffix)) {
+Source of = foundFiles.get(f.getPath());
+if (of != null) {
+throw new ProblemException("You have already added the file "+fn+" from "+of.file().getPath());
+}
+of = currentModule.lookupSource(f.getPath());
+if (of != null) {
+// Oups, the source is already added, could be ok, could be not, lets check.
+if (inLinksrc) {
+// So we are collecting sources for linking only.
+if (of.isLinkedOnly()) {
+// Ouch, this one is also for linking only. Bad.
+throw new ProblemException("You have already added the link only file "+fn+" from "+of.file().getPath());
+}
+// Ok, the existing source is to be compiled. Thus this link only is redundant
+// since all compiled are also linked to. Continue to the next source.
+// But we need to add the source, so that it will be visible to linking,
+// if not the multi core compile will fail because a JavaCompiler cannot
+// find the necessary dependencies for its part of the source.
+foundFiles.put(f.getPath(), of);
+continue;
+} else {
+// We are looking for sources to compile, if we find an existing to be compiled
+// source with the same name, it is an internal error, since we must
+// find the sources to be compiled before we find the sources to be linked to.
+throw new ProblemException("Internal error: Double add of file "+fn+" from "+of.file().getPath());
+}
+}
+Source s = new Source(currentModule, f.getPath(), f, root);
+if (inGensrc) s.markAsGenerated();
+if (inLinksrc) {
+s.markAsLinkedOnly();
+}
+pkg = currentModule.name()+":"+pkg;
+foundFiles.put(f.getPath(), s);
+currentModule.addSource(pkg, s);
+}
+}
+}
+}
+return currentModule;
+}
+private static boolean gurka = false;
+static private void scanDirectory(File dir, int rootPrefix, File root,
+Set<String> suffixes,
+List<String> excludes, List<String> includes,
+List<String> excludeFiles, List<String> includeFiles, boolean all,
+Map<String,Source> foundFiles,
+Map<String,Module> foundModules,
+Module currentModule, boolean inGensrc, boolean inLinksrc)
+throws ProblemException {
+String pkg_name = "";
+// Remove the root prefix from the dir path, and replace file separator with dots
+// to get the package name.
+if (dir.getPath().length() > rootPrefix) {
+pkg_name = dir.getPath().substring(rootPrefix).replace(File.separatorChar,'.');
+}
+// Should this package directory be included and not excluded?
+if (all || ((includes==null || includes.isEmpty() || hasMatch(pkg_name, includes)) &&
+(excludes==null || excludes.isEmpty() || !hasMatch(pkg_name, excludes)))) {
+// Add the source files.
+currentModule = addFilesInDir(dir, rootPrefix, root, suffixes, true, excludeFiles, includeFiles, all,
+foundFiles, foundModules, currentModule, inGensrc, inLinksrc);
+}
+for (File d : dir.listFiles()) {
+if (d.isDirectory()) {
+// Descend into the directory structure.
+scanDirectory(d, rootPrefix, root, suffixes,
+excludes, includes, excludeFiles, includeFiles, all,
+foundFiles, foundModules, currentModule, inGensrc, inLinksrc);
+}
+}
+}
+}

Mercurial > jdk8-mips64-public > langtools / file comparison

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

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