--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/langtools/src/share/classes/com/sun/tools/sjavac/BuildState.java Fri Jan 18 00:16:21 2013 +0100
@@ -0,0 +1,275 @@
+/*
+ * Copyright (c) 2012, 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.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+/**
+ * The build state class captures the source code and generated artifacts
+ * from a build. There are usually two build states, the previous one (prev),
+ * loaded from the javac_state file, and the current one (now).
+ *
+ * <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 BuildState {
+ private Map<String,Module> modules = new HashMap<String,Module>();
+ private Map<String,Package> packages = new HashMap<String,Package>();
+ private Map<String,Source> sources = new HashMap<String,Source>();
+ private Map<String,File> artifacts = new HashMap<String,File>();
+ // Map from package to a set of packages that depend on said package.
+ private Map<String,Set<String>> dependents = new HashMap<String,Set<String>>();
+
+ public Map<String,Module> modules() { return modules; }
+ public Map<String,Package> packages() { return packages; }
+ public Map<String,Source> sources() { return sources; }
+ public Map<String,File> artifacts() { return artifacts; }
+ public Map<String,Set<String>> dependents() { return dependents; }
+
+ /**
+ * Lookup a module from a name. Create the module if it does
+ * not exist yet.
+ */
+ public Module lookupModule(String mod) {
+ Module m = modules.get(mod);
+ if (m == null) {
+ m = new Module(mod, "???");
+ modules.put(mod, m);
+ }
+ return m;
+ }
+
+ /**
+ * Find a module from a given package name. For example:
+ * The package name "base:java.lang" will fetch the module named "base".
+ * The package name ":java.net" will fetch the default module.
+ */
+ Module findModuleFromPackageName(String pkg) {
+ int cp = pkg.indexOf(':');
+ assert(cp != -1);
+ String mod = pkg.substring(0, cp);
+ return lookupModule(mod);
+ }
+
+ /**
+ * Collect all packages, sources and artifacts for all modules
+ * into the build state.
+ *
+ * @param m The set of modules.
+ */
+ public void collectPackagesSourcesAndArtifacts(Map<String,Module> m) {
+ modules = m;
+ // Extract all the found packages.
+ for (Module i : modules.values()) {
+ for (Map.Entry<String,Package> j : i.packages().entrySet()) {
+ Package p = packages.get(j.getKey());
+ // Check that no two different packages are stored under same name.
+ assert(p == null || p == j.getValue());
+ if (p == null) {
+ p = j.getValue();
+ packages.put(j.getKey(),j.getValue());
+ }
+ for (Map.Entry<String,Source> k : p.sources().entrySet()) {
+ Source s = sources.get(k.getKey());
+ // Check that no two different sources are stored under same name.
+ assert(s == null || s == k.getValue());
+ if (s == null) {
+ s = k.getValue();
+ sources.put(k.getKey(), k.getValue());
+ }
+ }
+ for (Map.Entry<String,File> g : p.artifacts().entrySet()) {
+ File f = artifacts.get(g.getKey());
+ // Check that no two artifacts are stored under the same file.
+ assert(f == null || f == g.getValue());
+ if (f == null) {
+ f = g.getValue();
+ artifacts.put(g.getKey(), g.getValue());
+ }
+ }
+ }
+ }
+ }
+
+ /**
+ * Collect all the artifacts of all modules and packages.
+ *
+ * @param m The set of modules.
+ */
+ public void collectArtifacts(Map<String,Module> m) {
+ modules = m;
+ // Extract all the found packages.
+ for (Module i : modules.values()) {
+ for (Map.Entry<String,Package> j : i.packages().entrySet()) {
+ Package p = packages.get(j.getKey());
+ // Check that no two different packages are stored under same name.
+ assert(p == null || p == j.getValue());
+ p = j.getValue();
+ packages.put(j.getKey(),j.getValue());
+ for (Map.Entry<String,File> g : p.artifacts().entrySet()) {
+ File f = artifacts.get(g.getKey());
+ // Check that no two artifacts are stored under the same file.
+ assert(f == null || f == g.getValue());
+ artifacts.put(g.getKey(), g.getValue());
+ }
+ }
+ }
+ }
+
+ /**
+ * Calculate the package dependents (ie the reverse of the dependencies).
+ */
+ public void calculateDependents() {
+ dependents = new HashMap<String,Set<String>>();
+ for (String s : packages.keySet()) {
+ Package p = packages.get(s);
+ for (String d : p.dependencies()) {
+ Set<String> ss = dependents.get(d);
+ if (ss == null) {
+ ss = new HashSet<String>();
+ dependents.put(d, ss);
+ }
+ // Add the dependent information to the global dependent map.
+ ss.add(s);
+ Package dp = packages.get(d);
+ // Also add the dependent information to the package specific map.
+ // Normally, you do not compile java.lang et al. Therefore
+ // there are several packages that p depends upon that you
+ // do not have in your state database. This is perfectly fine.
+ if (dp != null) {
+ // But this package did exist in the state database.
+ dp.addDependent(p.name());
+ }
+ }
+ }
+ }
+
+ /**
+ * Verify that the setModules method above did the right thing when
+ * running through the module->package->source structure.
+ */
+ public void checkInternalState(String msg, boolean linkedOnly, Map<String,Source> srcs) {
+ boolean baad = false;
+ Map<String,Source> original = new HashMap<String,Source>();
+ Map<String,Source> calculated = new HashMap<String,Source>();
+
+ for (String s : sources.keySet()) {
+ Source ss = sources.get(s);
+ if (ss.isLinkedOnly() == linkedOnly) {
+ calculated.put(s,ss);
+ }
+ }
+ for (String s : srcs.keySet()) {
+ Source ss = srcs.get(s);
+ if (ss.isLinkedOnly() == linkedOnly) {
+ original.put(s,ss);
+ }
+ }
+ if (original.size() != calculated.size()) {
+ Log.error("INTERNAL ERROR "+msg+" original and calculated are not the same size!");
+ baad = true;
+ }
+ if (!original.keySet().equals(calculated.keySet())) {
+ Log.error("INTERNAL ERROR "+msg+" original and calculated do not have the same domain!");
+ baad = true;
+ }
+ if (!baad) {
+ for (String s : original.keySet()) {
+ Source s1 = original.get(s);
+ Source s2 = calculated.get(s);
+ if (s1 == null || s2 == null || !s1.equals(s2)) {
+ Log.error("INTERNAL ERROR "+msg+" original and calculated have differing elements for "+s);
+ }
+ baad = true;
+ }
+ }
+ if (baad) {
+ for (String s : original.keySet()) {
+ Source ss = original.get(s);
+ Source sss = calculated.get(s);
+ if (sss == null) {
+ Log.error("The file "+s+" does not exist in calculated tree of sources.");
+ }
+ }
+ for (String s : calculated.keySet()) {
+ Source ss = calculated.get(s);
+ Source sss = original.get(s);
+ if (sss == null) {
+ Log.error("The file "+s+" does not exist in original set of found sources.");
+ }
+ }
+ }
+ }
+
+ /**
+ * Load a module from the javac state file.
+ */
+ public Module loadModule(String l) {
+ Module m = Module.load(l);
+ modules.put(m.name(), m);
+ return m;
+ }
+
+ /**
+ * Load a package from the javac state file.
+ */
+ public Package loadPackage(Module lastModule, String l) {
+ Package p = Package.load(lastModule, l);
+ lastModule.addPackage(p);
+ packages.put(p.name(), p);
+ return p;
+ }
+
+ /**
+ * Load a source from the javac state file.
+ */
+ public Source loadSource(Package lastPackage, String l, boolean is_generated) {
+ Source s = Source.load(lastPackage, l, is_generated);
+ lastPackage.addSource(s);
+ sources.put(s.name(), s);
+ return s;
+ }
+
+ /**
+ * During an incremental compile we need to copy the old javac state
+ * information about packages that were not recompiled.
+ */
+ public void copyPackagesExcept(BuildState prev, Set<String> recompiled, Set<String> removed) {
+ for (String pkg : prev.packages().keySet()) {
+ // Do not copy recompiled or removed packages.
+ if (recompiled.contains(pkg) || removed.contains(pkg)) continue;
+ Module mnew = findModuleFromPackageName(pkg);
+ Package pprev = prev.packages().get(pkg);
+ mnew.addPackage(pprev);
+ }
+ }
+}