AAPT2: Support generating Manifest.java
This includes comments from AndroidManifest.xml.
Change-Id: I412d9ecb12bad20a49a683d6b3bea4a0be1235ae
diff --git a/tools/aapt2/java/ManifestClassGenerator.cpp b/tools/aapt2/java/ManifestClassGenerator.cpp
new file mode 100644
index 0000000..c12da64
--- /dev/null
+++ b/tools/aapt2/java/ManifestClassGenerator.cpp
@@ -0,0 +1,133 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Source.h"
+#include "XmlDom.h"
+
+#include "java/AnnotationProcessor.h"
+#include "java/ManifestClassGenerator.h"
+#include "util/Maybe.h"
+
+#include <algorithm>
+
+namespace aapt {
+
+constexpr const char16_t* kSchemaAndroid = u"http://schemas.android.com/apk/res/android";
+
+static Maybe<StringPiece16> extractJavaIdentifier(IDiagnostics* diag, const Source& source,
+ const StringPiece16& value) {
+ const StringPiece16 sep = u".";
+ auto iter = std::find_end(value.begin(), value.end(), sep.begin(), sep.end());
+
+ StringPiece16 result;
+ if (iter != value.end()) {
+ result.assign(iter + sep.size(), value.end() - (iter + sep.size()));
+ } else {
+ result = value;
+ }
+
+ if (result.empty()) {
+ diag->error(DiagMessage(source) << "empty symbol");
+ return {};
+ }
+
+ iter = util::findNonAlphaNumericAndNotInSet(result, u"_");
+ if (iter != result.end()) {
+ diag->error(DiagMessage(source)
+ << "invalid character '" << StringPiece16(iter, 1)
+ << "' in '" << result << "'");
+ return {};
+ }
+
+ if (*result.begin() >= u'0' && *result.begin() <= u'9') {
+ diag->error(DiagMessage(source) << "symbol can not start with a digit");
+ return {};
+ }
+
+ return result;
+}
+
+static bool writeSymbol(IDiagnostics* diag, const Source& source, xml::Element* el,
+ std::ostream* out) {
+ xml::Attribute* attr = el->findAttribute(kSchemaAndroid, u"name");
+ if (!attr) {
+ diag->error(DiagMessage(source) << "<" << el->name << "> must define 'android:name'");
+ return false;
+ }
+
+ Maybe<StringPiece16> result = extractJavaIdentifier(diag, source.withLine(el->lineNumber),
+ attr->value);
+ if (!result) {
+ return false;
+ }
+
+ *out << "\n";
+
+ if (!util::trimWhitespace(el->comment).empty()) {
+ AnnotationProcessor processor(" ");
+ processor.appendComment(el->comment);
+ *out << processor.buildComment() << "\n";
+ std::string annotations = processor.buildAnnotations();
+ if (!annotations.empty()) {
+ *out << annotations << "\n";
+ }
+ }
+ *out << " public static final String " << result.value() << "=\"" << attr->value << "\";\n";
+ return true;
+}
+
+bool ManifestClassGenerator::generate(IDiagnostics* diag, const StringPiece16& package,
+ XmlResource* res, std::ostream* out) {
+ xml::Element* el = xml::findRootElement(res->root.get());
+ if (!el) {
+ return false;
+ }
+
+ if (el->name != u"manifest" && !el->namespaceUri.empty()) {
+ diag->error(DiagMessage(res->file.source) << "no <manifest> root tag defined");
+ return false;
+ }
+
+ *out << "package " << package << ";\n\n"
+ << "public class Manifest {\n";
+
+ bool error = false;
+ std::vector<xml::Element*> children = el->getChildElements();
+
+
+ // First write out permissions.
+ *out << " public static class permission {\n";
+ for (xml::Element* childEl : children) {
+ if (childEl->namespaceUri.empty() && childEl->name == u"permission") {
+ error |= !writeSymbol(diag, res->file.source, childEl, out);
+ }
+ }
+ *out << " }\n";
+
+ // Next write out permission groups.
+ *out << " public static class permission_group {\n";
+ for (xml::Element* childEl : children) {
+ if (childEl->namespaceUri.empty() && childEl->name == u"permission-group") {
+ error |= !writeSymbol(diag, res->file.source, childEl, out);
+ }
+ }
+ *out << " }\n";
+
+ *out << "}\n";
+ return !error;
+}
+
+} // namespace aapt