diff options
Diffstat (limited to 'src/google/protobuf/compiler/java/java_message.cc')
| -rw-r--r-- | src/google/protobuf/compiler/java/java_message.cc | 1456 |
1 files changed, 1456 insertions, 0 deletions
diff --git a/src/google/protobuf/compiler/java/java_message.cc b/src/google/protobuf/compiler/java/java_message.cc new file mode 100644 index 00000000..d55a9849 --- /dev/null +++ b/src/google/protobuf/compiler/java/java_message.cc @@ -0,0 +1,1456 @@ +// Protocol Buffers - Google's data interchange format +// Copyright 2008 Google Inc. All rights reserved. +// https://developers.google.com/protocol-buffers/ +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Author: kenton@google.com (Kenton Varda) +// Based on original Protocol Buffers design by +// Sanjay Ghemawat, Jeff Dean, and others. + +#include <google/protobuf/compiler/java/java_message.h> + +#include <algorithm> +#include <google/protobuf/stubs/hash.h> +#include <map> +#include <memory> +#ifndef _SHARED_PTR_H +#include <google/protobuf/stubs/shared_ptr.h> +#endif +#include <vector> + +#include <google/protobuf/compiler/java/java_context.h> +#include <google/protobuf/compiler/java/java_doc_comment.h> +#include <google/protobuf/compiler/java/java_enum.h> +#include <google/protobuf/compiler/java/java_extension.h> +#include <google/protobuf/compiler/java/java_generator_factory.h> +#include <google/protobuf/compiler/java/java_helpers.h> +#include <google/protobuf/compiler/java/java_message_builder.h> +#include <google/protobuf/compiler/java/java_message_builder_lite.h> +#include <google/protobuf/compiler/java/java_name_resolver.h> +#include <google/protobuf/io/coded_stream.h> +#include <google/protobuf/io/printer.h> +#include <google/protobuf/descriptor.pb.h> +#include <google/protobuf/wire_format.h> +#include <google/protobuf/stubs/strutil.h> +#include <google/protobuf/stubs/substitute.h> + +namespace google { +namespace protobuf { +namespace compiler { +namespace java { + +using internal::WireFormat; +using internal::WireFormatLite; + +namespace { +bool GenerateHasBits(const Descriptor* descriptor) { + return SupportFieldPresence(descriptor->file()) || + HasRepeatedFields(descriptor); +} + +string MapValueImmutableClassdName(const Descriptor* descriptor, + ClassNameResolver* name_resolver) { + const FieldDescriptor* value_field = descriptor->FindFieldByName("value"); + GOOGLE_CHECK_EQ(FieldDescriptor::TYPE_MESSAGE, value_field->type()); + return name_resolver->GetImmutableClassName(value_field->message_type()); +} +} // namespace + +// =================================================================== + +MessageGenerator::MessageGenerator(const Descriptor* descriptor) + : descriptor_(descriptor) {} + +MessageGenerator::~MessageGenerator() {} + +// =================================================================== +ImmutableMessageGenerator::ImmutableMessageGenerator( + const Descriptor* descriptor, Context* context) + : MessageGenerator(descriptor), context_(context), + name_resolver_(context->GetNameResolver()), + field_generators_(descriptor, context_) { + GOOGLE_CHECK(HasDescriptorMethods(descriptor->file(), context->EnforceLite())) + << "Generator factory error: A non-lite message generator is used to " + "generate lite messages."; +} + +ImmutableMessageGenerator::~ImmutableMessageGenerator() {} + +void ImmutableMessageGenerator::GenerateStaticVariables( + io::Printer* printer, int* bytecode_estimate) { + // Because descriptor.proto (com.google.protobuf.DescriptorProtos) is + // used in the construction of descriptors, we have a tricky bootstrapping + // problem. To help control static initialization order, we make sure all + // descriptors and other static data that depends on them are members of + // the outermost class in the file. This way, they will be initialized in + // a deterministic order. + + map<string, string> vars; + vars["identifier"] = UniqueFileScopeIdentifier(descriptor_); + vars["index"] = SimpleItoa(descriptor_->index()); + vars["classname"] = name_resolver_->GetImmutableClassName(descriptor_); + if (descriptor_->containing_type() != NULL) { + vars["parent"] = UniqueFileScopeIdentifier( + descriptor_->containing_type()); + } + if (MultipleJavaFiles(descriptor_->file(), /* immutable = */ true)) { + // We can only make these package-private since the classes that use them + // are in separate files. + vars["private"] = ""; + } else { + vars["private"] = "private "; + } + if (*bytecode_estimate <= kMaxStaticSize) { + vars["final"] = "final "; + } else { + vars["final"] = ""; + } + + // The descriptor for this type. + printer->Print(vars, + // TODO(teboring): final needs to be added back. The way to fix it is to + // generate methods that can construct the types, and then still declare the + // types, and then init them in clinit with the new method calls. + "$private$static $final$com.google.protobuf.Descriptors.Descriptor\n" + " internal_$identifier$_descriptor;\n"); + *bytecode_estimate += 30; + + // And the FieldAccessorTable. + GenerateFieldAccessorTable(printer, bytecode_estimate); + + // Generate static members for all nested types. + for (int i = 0; i < descriptor_->nested_type_count(); i++) { + // TODO(kenton): Reuse MessageGenerator objects? + ImmutableMessageGenerator(descriptor_->nested_type(i), context_) + .GenerateStaticVariables(printer, bytecode_estimate); + } +} + +int ImmutableMessageGenerator::GenerateStaticVariableInitializers( + io::Printer* printer) { + int bytecode_estimate = 0; + map<string, string> vars; + vars["identifier"] = UniqueFileScopeIdentifier(descriptor_); + vars["index"] = SimpleItoa(descriptor_->index()); + vars["classname"] = name_resolver_->GetImmutableClassName(descriptor_); + if (descriptor_->containing_type() != NULL) { + vars["parent"] = UniqueFileScopeIdentifier( + descriptor_->containing_type()); + } + + // The descriptor for this type. + if (descriptor_->containing_type() == NULL) { + printer->Print(vars, + "internal_$identifier$_descriptor =\n" + " getDescriptor().getMessageTypes().get($index$);\n"); + bytecode_estimate += 30; + } else { + printer->Print(vars, + "internal_$identifier$_descriptor =\n" + " internal_$parent$_descriptor.getNestedTypes().get($index$);\n"); + bytecode_estimate += 30; + } + + // And the FieldAccessorTable. + bytecode_estimate += GenerateFieldAccessorTableInitializer(printer); + + // Generate static member initializers for all nested types. + for (int i = 0; i < descriptor_->nested_type_count(); i++) { + // TODO(kenton): Reuse MessageGenerator objects? + bytecode_estimate += + ImmutableMessageGenerator(descriptor_->nested_type(i), context_) + .GenerateStaticVariableInitializers(printer); + } + return bytecode_estimate; +} + +void ImmutableMessageGenerator:: +GenerateFieldAccessorTable(io::Printer* printer, int* bytecode_estimate) { + map<string, string> vars; + vars["identifier"] = UniqueFileScopeIdentifier(descriptor_); + if (MultipleJavaFiles(descriptor_->file(), /* immutable = */ true)) { + // We can only make these package-private since the classes that use them + // are in separate files. + vars["private"] = ""; + } else { + vars["private"] = "private "; + } + if (*bytecode_estimate <= kMaxStaticSize) { + vars["final"] = "final "; + } else { + vars["final"] = ""; + } + printer->Print(vars, + "$private$static $final$\n" + " com.google.protobuf.GeneratedMessage.FieldAccessorTable\n" + " internal_$identifier$_fieldAccessorTable;\n"); + + // 6 bytes per field and oneof + *bytecode_estimate += 10 + 6 * descriptor_->field_count() + + 6 * descriptor_->oneof_decl_count(); +} + +int ImmutableMessageGenerator:: +GenerateFieldAccessorTableInitializer(io::Printer* printer) { + int bytecode_estimate = 10; + printer->Print( + "internal_$identifier$_fieldAccessorTable = new\n" + " com.google.protobuf.GeneratedMessage.FieldAccessorTable(\n" + " internal_$identifier$_descriptor,\n" + " new java.lang.String[] { ", + "identifier", + UniqueFileScopeIdentifier(descriptor_)); + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = descriptor_->field(i); + const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); + bytecode_estimate += 6; + printer->Print( + "\"$field_name$\", ", + "field_name", info->capitalized_name); + } + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { + const OneofDescriptor* oneof = descriptor_->oneof_decl(i); + const OneofGeneratorInfo* info = context_->GetOneofGeneratorInfo(oneof); + bytecode_estimate += 6; + printer->Print( + "\"$oneof_name$\", ", + "oneof_name", info->capitalized_name); + } + printer->Print("});\n"); + return bytecode_estimate; +} + +// =================================================================== + +void ImmutableMessageGenerator::GenerateInterface(io::Printer* printer) { + MaybePrintGeneratedAnnotation(context_, printer, descriptor_, + /* immutable = */ true, "OrBuilder"); + if (descriptor_->extension_range_count() > 0) { + printer->Print( + "public interface $classname$OrBuilder$idend$ extends\n" + " $extra_interfaces$\n" + " com.google.protobuf.GeneratedMessage.\n" + " ExtendableMessageOrBuilder<$classname$> {\n", + "extra_interfaces", ExtraMessageOrBuilderInterfaces(descriptor_), + "classname", descriptor_->name(), + "idend", ""); + } else { + printer->Print( + "public interface $classname$OrBuilder$idend$ extends\n" + " $extra_interfaces$\n" + " com.google.protobuf.MessageOrBuilder {\n", + "extra_interfaces", ExtraMessageOrBuilderInterfaces(descriptor_), + "classname", descriptor_->name(), + "idend", ""); + } + printer->Annotate("classname", "idend", descriptor_); + + printer->Indent(); + for (int i = 0; i < descriptor_->field_count(); i++) { + printer->Print("\n"); + field_generators_.get(descriptor_->field(i)) + .GenerateInterfaceMembers(printer); + } + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { + printer->Print( + "\n" + "public $classname$.$oneof_capitalized_name$Case " + "get$oneof_capitalized_name$Case();\n", + "oneof_capitalized_name", + context_->GetOneofGeneratorInfo( + descriptor_->oneof_decl(i))->capitalized_name, + "classname", + context_->GetNameResolver()->GetImmutableClassName( + descriptor_)); + } + printer->Outdent(); + + printer->Print("}\n"); +} + +// =================================================================== + +void ImmutableMessageGenerator::Generate(io::Printer* printer) { + bool is_own_file = IsOwnFile(descriptor_, /* immutable = */ true); + + map<string, string> variables; + variables["static"] = is_own_file ? " " : " static "; + variables["classname"] = descriptor_->name(); + variables["extra_interfaces"] = ExtraMessageInterfaces(descriptor_); + + WriteMessageDocComment(printer, descriptor_); + MaybePrintGeneratedAnnotation(context_, printer, descriptor_, + /* immutable = */ true); + + // The builder_type stores the super type name of the nested Builder class. + string builder_type; + if (descriptor_->extension_range_count() > 0) { + printer->Print(variables, + "public $static$final class $classname$ extends\n"); + printer->Annotate("classname", descriptor_); + printer->Print( + variables, + " com.google.protobuf.GeneratedMessage.ExtendableMessage<\n" + " $classname$> implements\n" + " $extra_interfaces$\n" + " $classname$OrBuilder {\n"); + builder_type = strings::Substitute( + "com.google.protobuf.GeneratedMessage.ExtendableBuilder<$0, ?>", + name_resolver_->GetImmutableClassName(descriptor_)); + } else { + printer->Print(variables, + "public $static$final class $classname$ extends\n"); + printer->Annotate("classname", descriptor_); + printer->Print(variables, + " com.google.protobuf.GeneratedMessage implements\n" + " $extra_interfaces$\n" + " $classname$OrBuilder {\n"); + builder_type = "com.google.protobuf.GeneratedMessage.Builder<?>"; + } + printer->Indent(); + // Using builder_type, instead of Builder, prevents the Builder class from + // being loaded into PermGen space when the default instance is created. + // This optimizes the PermGen space usage for clients that do not modify + // messages. + printer->Print( + "// Use $classname$.newBuilder() to construct.\n" + "private $classname$($buildertype$ builder) {\n" + " super(builder);\n" + "}\n", + "classname", descriptor_->name(), + "buildertype", builder_type); + printer->Print( + "private $classname$() {\n", + "classname", descriptor_->name()); + printer->Indent(); + GenerateInitializers(printer); + printer->Outdent(); + printer->Print( + "}\n" + "\n"); + + printer->Print( + "@java.lang.Override\n" + "public final com.google.protobuf.UnknownFieldSet\n" + "getUnknownFields() {\n"); + if (PreserveUnknownFields(descriptor_)) { + printer->Print( + " return this.unknownFields;\n"); + } else { + printer->Print( + " return com.google.protobuf.UnknownFieldSet.getDefaultInstance();\n"); + } + printer->Print( + "}\n"); + + if (context_->HasGeneratedMethods(descriptor_)) { + GenerateParsingConstructor(printer); + } + + GenerateDescriptorMethods(printer); + + // Nested types + for (int i = 0; i < descriptor_->enum_type_count(); i++) { + EnumGenerator(descriptor_->enum_type(i), true, context_) + .Generate(printer); + } + + for (int i = 0; i < descriptor_->nested_type_count(); i++) { + // Don't generate Java classes for map entry messages. + if (IsMapEntry(descriptor_->nested_type(i))) continue; + ImmutableMessageGenerator messageGenerator( + descriptor_->nested_type(i), context_); + messageGenerator.GenerateInterface(printer); + messageGenerator.Generate(printer); + } + + if (GenerateHasBits(descriptor_)) { + // Integers for bit fields. + int totalBits = 0; + for (int i = 0; i < descriptor_->field_count(); i++) { + totalBits += field_generators_.get(descriptor_->field(i)) + .GetNumBitsForMessage(); + } + int totalInts = (totalBits + 31) / 32; + for (int i = 0; i < totalInts; i++) { + printer->Print("private int $bit_field_name$;\n", + "bit_field_name", GetBitFieldName(i)); + } + } + + // oneof + map<string, string> vars; + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { + vars["oneof_name"] = context_->GetOneofGeneratorInfo( + descriptor_->oneof_decl(i))->name; + vars["oneof_capitalized_name"] = context_->GetOneofGeneratorInfo( + descriptor_->oneof_decl(i))->capitalized_name; + vars["oneof_index"] = SimpleItoa(descriptor_->oneof_decl(i)->index()); + // oneofCase_ and oneof_ + printer->Print(vars, + "private int $oneof_name$Case_ = 0;\n" + "private java.lang.Object $oneof_name$_;\n"); + // OneofCase enum + printer->Print(vars, + "public enum $oneof_capitalized_name$Case\n" + " implements com.google.protobuf.Internal.EnumLite {\n"); + printer->Indent(); + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) { + const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j); + printer->Print( + "$field_name$($field_number$),\n", + "field_name", + ToUpper(field->name()), + "field_number", + SimpleItoa(field->number())); + } + printer->Print( + "$cap_oneof_name$_NOT_SET(0);\n", + "cap_oneof_name", + ToUpper(vars["oneof_name"])); + printer->Print(vars, + "private final int value;\n" + "private $oneof_capitalized_name$Case(int value) {\n" + " this.value = value;\n" + "}\n"); + printer->Print(vars, + "/**\n" + " * @deprecated Use {@link #forNumber(int)} instead.\n" + " */\n" + "@java.lang.Deprecated\n" + "public static $oneof_capitalized_name$Case valueOf(int value) {\n" + " return forNumber(value);\n" + "}\n" + "\n" + "public static $oneof_capitalized_name$Case forNumber(int value) {\n" + " switch (value) {\n"); + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) { + const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j); + printer->Print( + " case $field_number$: return $field_name$;\n", + "field_number", + SimpleItoa(field->number()), + "field_name", + ToUpper(field->name())); + } + printer->Print( + " case 0: return $cap_oneof_name$_NOT_SET;\n" + " default: return null;\n" + " }\n" + "}\n" + "public int getNumber() {\n" + " return this.value;\n" + "}\n", + "cap_oneof_name", ToUpper(vars["oneof_name"])); + printer->Outdent(); + printer->Print("};\n\n"); + // oneofCase() + printer->Print(vars, + "public $oneof_capitalized_name$Case\n" + "get$oneof_capitalized_name$Case() {\n" + " return $oneof_capitalized_name$Case.forNumber(\n" + " $oneof_name$Case_);\n" + "}\n" + "\n"); + } + + if (IsAnyMessage(descriptor_)) { + GenerateAnyMethods(printer); + } + + // Fields + for (int i = 0; i < descriptor_->field_count(); i++) { + printer->Print("public static final int $constant_name$ = $number$;\n", + "constant_name", FieldConstantName(descriptor_->field(i)), + "number", SimpleItoa(descriptor_->field(i)->number())); + field_generators_.get(descriptor_->field(i)).GenerateMembers(printer); + printer->Print("\n"); + } + + if (context_->HasGeneratedMethods(descriptor_)) { + GenerateIsInitialized(printer); + GenerateMessageSerializationMethods(printer); + GenerateEqualsAndHashCode(printer); + } + + + GenerateParseFromMethods(printer); + GenerateBuilder(printer); + + printer->Print( + "\n" + "// @@protoc_insertion_point(class_scope:$full_name$)\n", + "full_name", descriptor_->full_name()); + + + // Carefully initialize the default instance in such a way that it doesn't + // conflict with other initialization. + printer->Print( + "private static final $classname$ DEFAULT_INSTANCE;\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_)); + printer->Print( + "static {\n" + " DEFAULT_INSTANCE = new $classname$();\n" + "}\n" + "\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_)); + + printer->Print( + "public static $classname$ getDefaultInstance() {\n" + " return DEFAULT_INSTANCE;\n" + "}\n" + "\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_)); + + GenerateParser(printer); + + printer->Print( + "public $classname$ getDefaultInstanceForType() {\n" + " return DEFAULT_INSTANCE;\n" + "}\n" + "\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_)); + + // Extensions must be declared after the DEFAULT_INSTANCE is initialized + // because the DEFAULT_INSTANCE is used by the extension to lazily retrieve + // the outer class's FileDescriptor. + for (int i = 0; i < descriptor_->extension_count(); i++) { + ImmutableExtensionGenerator(descriptor_->extension(i), context_) + .Generate(printer); + } + + printer->Outdent(); + printer->Print("}\n\n"); +} + + +// =================================================================== + +void ImmutableMessageGenerator:: +GenerateMessageSerializationMethods(io::Printer* printer) { + google::protobuf::scoped_array<const FieldDescriptor * > sorted_fields( + SortFieldsByNumber(descriptor_)); + + vector<const Descriptor::ExtensionRange*> sorted_extensions; + for (int i = 0; i < descriptor_->extension_range_count(); ++i) { + sorted_extensions.push_back(descriptor_->extension_range(i)); + } + std::sort(sorted_extensions.begin(), sorted_extensions.end(), + ExtensionRangeOrdering()); + + printer->Print( + "public void writeTo(com.google.protobuf.CodedOutputStream output)\n" + " throws java.io.IOException {\n"); + printer->Indent(); + if (HasPackedFields(descriptor_)) { + // writeTo(CodedOutputStream output) might be invoked without + // getSerializedSize() ever being called, but we need the memoized + // sizes in case this message has packed fields. Rather than emit checks for + // each packed field, just call getSerializedSize() up front. + // In most cases, getSerializedSize() will have already been called anyway + // by one of the wrapper writeTo() methods, making this call cheap. + printer->Print( + "getSerializedSize();\n"); + } + + if (descriptor_->extension_range_count() > 0) { + if (descriptor_->options().message_set_wire_format()) { + printer->Print( + "com.google.protobuf.GeneratedMessage\n" + " .ExtendableMessage<$classname$>.ExtensionWriter\n" + " extensionWriter = newMessageSetExtensionWriter();\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_)); + } else { + printer->Print( + "com.google.protobuf.GeneratedMessage\n" + " .ExtendableMessage<$classname$>.ExtensionWriter\n" + " extensionWriter = newExtensionWriter();\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_)); + } + } + + // Merge the fields and the extension ranges, both sorted by field number. + for (int i = 0, j = 0; + i < descriptor_->field_count() || j < sorted_extensions.size(); + ) { + if (i == descriptor_->field_count()) { + GenerateSerializeOneExtensionRange(printer, sorted_extensions[j++]); + } else if (j == sorted_extensions.size()) { + GenerateSerializeOneField(printer, sorted_fields[i++]); + } else if (sorted_fields[i]->number() < sorted_extensions[j]->start) { + GenerateSerializeOneField(printer, sorted_fields[i++]); + } else { + GenerateSerializeOneExtensionRange(printer, sorted_extensions[j++]); + } + } + + if (PreserveUnknownFields(descriptor_)) { + if (descriptor_->options().message_set_wire_format()) { + printer->Print( + "unknownFields.writeAsMessageSetTo(output);\n"); + } else { + printer->Print( + "unknownFields.writeTo(output);\n"); + } + } + + printer->Outdent(); + printer->Print( + "}\n" + "\n" + "public int getSerializedSize() {\n" + " int size = memoizedSize;\n" + " if (size != -1) return size;\n" + "\n" + " size = 0;\n"); + printer->Indent(); + + for (int i = 0; i < descriptor_->field_count(); i++) { + field_generators_.get(sorted_fields[i]).GenerateSerializedSizeCode(printer); + } + + if (descriptor_->extension_range_count() > 0) { + if (descriptor_->options().message_set_wire_format()) { + printer->Print( + "size += extensionsSerializedSizeAsMessageSet();\n"); + } else { + printer->Print( + "size += extensionsSerializedSize();\n"); + } + } + + if (PreserveUnknownFields(descriptor_)) { + if (descriptor_->options().message_set_wire_format()) { + printer->Print( + "size += unknownFields.getSerializedSizeAsMessageSet();\n"); + } else { + printer->Print( + "size += unknownFields.getSerializedSize();\n"); + } + } + + printer->Outdent(); + printer->Print( + " memoizedSize = size;\n" + " return size;\n" + "}\n" + "\n"); + + printer->Print( + "private static final long serialVersionUID = 0L;\n"); +} + +void ImmutableMessageGenerator:: +GenerateParseFromMethods(io::Printer* printer) { + // Note: These are separate from GenerateMessageSerializationMethods() + // because they need to be generated even for messages that are optimized + // for code size. + printer->Print( + "public static $classname$ parseFrom(\n" + " com.google.protobuf.ByteString data)\n" + " throws com.google.protobuf.InvalidProtocolBufferException {\n" + " return PARSER.parseFrom(data);\n" + "}\n" + "public static $classname$ parseFrom(\n" + " com.google.protobuf.ByteString data,\n" + " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" + " throws com.google.protobuf.InvalidProtocolBufferException {\n" + " return PARSER.parseFrom(data, extensionRegistry);\n" + "}\n" + "public static $classname$ parseFrom(byte[] data)\n" + " throws com.google.protobuf.InvalidProtocolBufferException {\n" + " return PARSER.parseFrom(data);\n" + "}\n" + "public static $classname$ parseFrom(\n" + " byte[] data,\n" + " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" + " throws com.google.protobuf.InvalidProtocolBufferException {\n" + " return PARSER.parseFrom(data, extensionRegistry);\n" + "}\n" + "public static $classname$ parseFrom(java.io.InputStream input)\n" + " throws java.io.IOException {\n" + " return com.google.protobuf.GeneratedMessage\n" + " .parseWithIOException(PARSER, input);\n" + "}\n" + "public static $classname$ parseFrom(\n" + " java.io.InputStream input,\n" + " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" + " throws java.io.IOException {\n" + " return com.google.protobuf.GeneratedMessage\n" + " .parseWithIOException(PARSER, input, extensionRegistry);\n" + "}\n" + "public static $classname$ parseDelimitedFrom(java.io.InputStream input)\n" + " throws java.io.IOException {\n" + " return com.google.protobuf.GeneratedMessage\n" + " .parseDelimitedWithIOException(PARSER, input);\n" + "}\n" + "public static $classname$ parseDelimitedFrom(\n" + " java.io.InputStream input,\n" + " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" + " throws java.io.IOException {\n" + " return com.google.protobuf.GeneratedMessage\n" + " .parseDelimitedWithIOException(PARSER, input, extensionRegistry);\n" + "}\n" + "public static $classname$ parseFrom(\n" + " com.google.protobuf.CodedInputStream input)\n" + " throws java.io.IOException {\n" + " return com.google.protobuf.GeneratedMessage\n" + " .parseWithIOException(PARSER, input);\n" + "}\n" + "public static $classname$ parseFrom(\n" + " com.google.protobuf.CodedInputStream input,\n" + " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" + " throws java.io.IOException {\n" + " return com.google.protobuf.GeneratedMessage\n" + " .parseWithIOException(PARSER, input, extensionRegistry);\n" + "}\n" + "\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_)); +} + +void ImmutableMessageGenerator::GenerateSerializeOneField( + io::Printer* printer, const FieldDescriptor* field) { + field_generators_.get(field).GenerateSerializationCode(printer); +} + +void ImmutableMessageGenerator::GenerateSerializeOneExtensionRange( + io::Printer* printer, const Descriptor::ExtensionRange* range) { + printer->Print( + "extensionWriter.writeUntil($end$, output);\n", + "end", SimpleItoa(range->end)); +} + +// =================================================================== + +void ImmutableMessageGenerator::GenerateBuilder(io::Printer* printer) { + // LITE_RUNTIME implements this at the GeneratedMessageLite level. + printer->Print( + "public Builder newBuilderForType() { return newBuilder(); }\n"); + + printer->Print( + "public static Builder newBuilder() {\n" + " return DEFAULT_INSTANCE.toBuilder();\n" + "}\n" + "public static Builder newBuilder($classname$ prototype) {\n" + " return DEFAULT_INSTANCE.toBuilder().mergeFrom(prototype);\n" + "}\n" + "public Builder toBuilder() {\n" + " return this == DEFAULT_INSTANCE\n" + " ? new Builder() : new Builder().mergeFrom(this);\n" + "}\n" + "\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_)); + + printer->Print( + "@java.lang.Override\n" + "protected Builder newBuilderForType(\n" + " com.google.protobuf.GeneratedMessage.BuilderParent parent) {\n" + " Builder builder = new Builder(parent);\n" + " return builder;\n" + "}\n"); + + MessageBuilderGenerator builderGenerator(descriptor_, context_); + builderGenerator.Generate(printer); +} + +void ImmutableMessageGenerator:: +GenerateDescriptorMethods(io::Printer* printer) { + if (!descriptor_->options().no_standard_descriptor_accessor()) { + printer->Print( + "public static final com.google.protobuf.Descriptors.Descriptor\n" + " getDescriptor() {\n" + " return $fileclass$.internal_$identifier$_descriptor;\n" + "}\n" + "\n", + "fileclass", name_resolver_->GetImmutableClassName(descriptor_->file()), + "identifier", UniqueFileScopeIdentifier(descriptor_)); + } + vector<const FieldDescriptor*> map_fields; + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = descriptor_->field(i); + if (GetJavaType(field) == JAVATYPE_MESSAGE && + IsMapEntry(field->message_type())) { + map_fields.push_back(field); + } + } + if (!map_fields.empty()) { + printer->Print( + "@SuppressWarnings({\"rawtypes\"})\n" + "protected com.google.protobuf.MapField internalGetMapField(\n" + " int number) {\n" + " switch (number) {\n"); + printer->Indent(); + printer->Indent(); + for (int i = 0; i < map_fields.size(); ++i) { + const FieldDescriptor* field = map_fields[i]; + const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); + printer->Print( + "case $number$:\n" + " return internalGet$capitalized_name$();\n", + "number", SimpleItoa(field->number()), + "capitalized_name", info->capitalized_name); + } + printer->Print( + "default:\n" + " throw new RuntimeException(\n" + " \"Invalid map field number: \" + number);\n"); + printer->Outdent(); + printer->Outdent(); + printer->Print( + " }\n" + "}\n"); + } + printer->Print( + "protected com.google.protobuf.GeneratedMessage.FieldAccessorTable\n" + " internalGetFieldAccessorTable() {\n" + " return $fileclass$.internal_$identifier$_fieldAccessorTable\n" + " .ensureFieldAccessorsInitialized(\n" + " $classname$.class, $classname$.Builder.class);\n" + "}\n" + "\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_), + "fileclass", name_resolver_->GetImmutableClassName(descriptor_->file()), + "identifier", UniqueFileScopeIdentifier(descriptor_)); +} + +// =================================================================== + +void ImmutableMessageGenerator::GenerateIsInitialized( + io::Printer* printer) { + // Memoizes whether the protocol buffer is fully initialized (has all + // required fields). -1 means not yet computed. 0 means false and 1 means + // true. + printer->Print( + "private byte memoizedIsInitialized = -1;\n"); + printer->Print( + "public final boolean isInitialized() {\n"); + printer->Indent(); + + // Don't directly compare to -1 to avoid an Android x86 JIT bug. + printer->Print( + "byte isInitialized = memoizedIsInitialized;\n" + "if (isInitialized == 1) return true;\n" + "if (isInitialized == 0) return false;\n" + "\n"); + + // Check that all required fields in this message are set. + // TODO(kenton): We can optimize this when we switch to putting all the + // "has" fields into a single bitfield. + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = descriptor_->field(i); + const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); + + if (field->is_required()) { + printer->Print( + "if (!has$name$()) {\n" + " memoizedIsInitialized = 0;\n" + " return false;\n" + "}\n", + "name", info->capitalized_name); + } + } + + // Now check that all embedded messages are initialized. + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = descriptor_->field(i); + const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); + if (GetJavaType(field) == JAVATYPE_MESSAGE && + HasRequiredFields(field->message_type())) { + switch (field->label()) { + case FieldDescriptor::LABEL_REQUIRED: + printer->Print( + "if (!get$name$().isInitialized()) {\n" + " memoizedIsInitialized = 0;\n" + " return false;\n" + "}\n", + "type", name_resolver_->GetImmutableClassName( + field->message_type()), + "name", info->capitalized_name); + break; + case FieldDescriptor::LABEL_OPTIONAL: + if (!SupportFieldPresence(descriptor_->file()) && + field->containing_oneof() != NULL) { + const OneofDescriptor* oneof = field->containing_oneof(); + const OneofGeneratorInfo* oneof_info = + context_->GetOneofGeneratorInfo(oneof); + printer->Print( + "if ($oneof_name$Case_ == $field_number$) {\n", + "oneof_name", oneof_info->name, + "field_number", SimpleItoa(field->number())); + } else { + printer->Print( + "if (has$name$()) {\n", + "name", info->capitalized_name); + } + printer->Print( + " if (!get$name$().isInitialized()) {\n" + " memoizedIsInitialized = 0;\n" + " return false;\n" + " }\n" + "}\n", + "name", info->capitalized_name); + break; + case FieldDescriptor::LABEL_REPEATED: + if (IsMapEntry(field->message_type())) { + printer->Print( + "for ($type$ item : get$name$().values()) {\n" + " if (!item.isInitialized()) {\n" + " memoizedIsInitialized = 0;\n" + " return false;\n" + " }\n" + "}\n", + "type", MapValueImmutableClassdName(field->message_type(), + name_resolver_), + "name", info->capitalized_name); + } else { + printer->Print( + "for (int i = 0; i < get$name$Count(); i++) {\n" + " if (!get$name$(i).isInitialized()) {\n" + " memoizedIsInitialized = 0;\n" + " return false;\n" + " }\n" + "}\n", + "type", name_resolver_->GetImmutableClassName( + field->message_type()), + "name", info->capitalized_name); + } + break; + } + } + } + + if (descriptor_->extension_range_count() > 0) { + printer->Print( + "if (!extensionsAreInitialized()) {\n" + " memoizedIsInitialized = 0;\n" + " return false;\n" + "}\n"); + } + + printer->Outdent(); + + printer->Print( + " memoizedIsInitialized = 1;\n"); + + printer->Print( + " return true;\n" + "}\n" + "\n"); +} + +// =================================================================== + +namespace { +bool CheckHasBitsForEqualsAndHashCode(const FieldDescriptor* field) { + if (field->is_repeated()) { + return false; + } + if (SupportFieldPresence(field->file())) { + return true; + } + return GetJavaType(field) == JAVATYPE_MESSAGE && + field->containing_oneof() == NULL; +} +} // namespace + +void ImmutableMessageGenerator:: +GenerateEqualsAndHashCode(io::Printer* printer) { + printer->Print( + "@java.lang.Override\n" + "public boolean equals(final java.lang.Object obj) {\n"); + printer->Indent(); + printer->Print( + "if (obj == this) {\n" + " return true;\n" + "}\n" + "if (!(obj instanceof $classname$)) {\n" + " return super.equals(obj);\n" + "}\n" + "$classname$ other = ($classname$) obj;\n" + "\n", + "classname", name_resolver_->GetImmutableClassName(descriptor_)); + + printer->Print("boolean result = true;\n"); + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = descriptor_->field(i); + if (field->containing_oneof() == NULL) { + const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); + bool check_has_bits = CheckHasBitsForEqualsAndHashCode(field); + if (check_has_bits) { + printer->Print( + "result = result && (has$name$() == other.has$name$());\n" + "if (has$name$()) {\n", + "name", info->capitalized_name); + printer->Indent(); + } + field_generators_.get(field).GenerateEqualsCode(printer); + if (check_has_bits) { + printer->Outdent(); + printer->Print( + "}\n"); + } + } + } + + // Compare oneofs. + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { + printer->Print( + "result = result && get$oneof_capitalized_name$Case().equals(\n" + " other.get$oneof_capitalized_name$Case());\n", + "oneof_capitalized_name", + context_->GetOneofGeneratorInfo( + descriptor_->oneof_decl(i))->capitalized_name); + printer->Print( + "if (!result) return false;\n" + "switch ($oneof_name$Case_) {\n", + "oneof_name", + context_->GetOneofGeneratorInfo( + descriptor_->oneof_decl(i))->name); + printer->Indent(); + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) { + const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j); + printer->Print( + "case $field_number$:\n", + "field_number", + SimpleItoa(field->number())); + printer->Indent(); + field_generators_.get(field).GenerateEqualsCode(printer); + printer->Print("break;\n"); + printer->Outdent(); + } + printer->Print( + "case 0:\n" + "default:\n"); + printer->Outdent(); + printer->Print("}\n"); + } + + if (PreserveUnknownFields(descriptor_)) { + // Always consider unknown fields for equality. This will sometimes return + // false for non-canonical ordering when running in LITE_RUNTIME but it's + // the best we can do. + printer->Print( + "result = result && unknownFields.equals(other.unknownFields);\n"); + } + if (descriptor_->extension_range_count() > 0) { + printer->Print( + "result = result &&\n" + " getExtensionFields().equals(other.getExtensionFields());\n"); + } + printer->Print( + "return result;\n"); + printer->Outdent(); + printer->Print( + "}\n" + "\n"); + + printer->Print( + "@java.lang.Override\n" + "public int hashCode() {\n"); + printer->Indent(); + printer->Print( + "if (memoizedHashCode != 0) {\n"); + printer->Indent(); + printer->Print( + "return memoizedHashCode;\n"); + printer->Outdent(); + printer->Print( + "}\n" + "int hash = 41;\n"); + + printer->Print("hash = (19 * hash) + getDescriptorForType().hashCode();\n"); + + // hashCode non-oneofs. + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = descriptor_->field(i); + if (field->containing_oneof() == NULL) { + const FieldGeneratorInfo* info = context_->GetFieldGeneratorInfo(field); + bool check_has_bits = CheckHasBitsForEqualsAndHashCode(field); + if (check_has_bits) { + printer->Print( + "if (has$name$()) {\n", + "name", info->capitalized_name); + printer->Indent(); + } + field_generators_.get(field).GenerateHashCode(printer); + if (check_has_bits) { + printer->Outdent(); + printer->Print("}\n"); + } + } + } + + // hashCode oneofs. + for (int i = 0; i < descriptor_->oneof_decl_count(); i++) { + printer->Print( + "switch ($oneof_name$Case_) {\n", + "oneof_name", + context_->GetOneofGeneratorInfo( + descriptor_->oneof_decl(i))->name); + printer->Indent(); + for (int j = 0; j < descriptor_->oneof_decl(i)->field_count(); j++) { + const FieldDescriptor* field = descriptor_->oneof_decl(i)->field(j); + printer->Print( + "case $field_number$:\n", + "field_number", + SimpleItoa(field->number())); + printer->Indent(); + field_generators_.get(field).GenerateHashCode(printer); + printer->Print("break;\n"); + printer->Outdent(); + } + printer->Print( + "case 0:\n" + "default:\n"); + printer->Outdent(); + printer->Print("}\n"); + } + + if (descriptor_->extension_range_count() > 0) { + printer->Print( + "hash = hashFields(hash, getExtensionFields());\n"); + } + + printer->Print( + "hash = (29 * hash) + unknownFields.hashCode();\n"); + printer->Print( + "memoizedHashCode = hash;\n" + "return hash;\n"); + printer->Outdent(); + printer->Print( + "}\n" + "\n"); +} + +// =================================================================== + +void ImmutableMessageGenerator:: +GenerateExtensionRegistrationCode(io::Printer* printer) { + for (int i = 0; i < descriptor_->extension_count(); i++) { + ImmutableExtensionGenerator(descriptor_->extension(i), context_) + .GenerateRegistrationCode(printer); + } + + for (int i = 0; i < descriptor_->nested_type_count(); i++) { + ImmutableMessageGenerator(descriptor_->nested_type(i), context_) + .GenerateExtensionRegistrationCode(printer); + } +} + +// =================================================================== +void ImmutableMessageGenerator:: +GenerateParsingConstructor(io::Printer* printer) { + google::protobuf::scoped_array<const FieldDescriptor * > sorted_fields( + SortFieldsByNumber(descriptor_)); + + printer->Print( + "private $classname$(\n" + " com.google.protobuf.CodedInputStream input,\n" + " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" + " throws com.google.protobuf.InvalidProtocolBufferException {\n", + "classname", descriptor_->name()); + printer->Indent(); + + // Initialize all fields to default. + printer->Print( + "this();\n"); + + // Use builder bits to track mutable repeated fields. + int totalBuilderBits = 0; + for (int i = 0; i < descriptor_->field_count(); i++) { + const ImmutableFieldGenerator& field = + field_generators_.get(descriptor_->field(i)); + totalBuilderBits += field.GetNumBitsForBuilder(); + } + int totalBuilderInts = (totalBuilderBits + 31) / 32; + for (int i = 0; i < totalBuilderInts; i++) { + printer->Print("int mutable_$bit_field_name$ = 0;\n", + "bit_field_name", GetBitFieldName(i)); + } + + if (PreserveUnknownFields(descriptor_)) { + printer->Print( + "com.google.protobuf.UnknownFieldSet.Builder unknownFields =\n" + " com.google.protobuf.UnknownFieldSet.newBuilder();\n"); + } + + printer->Print( + "try {\n"); + printer->Indent(); + + printer->Print( + "boolean done = false;\n" + "while (!done) {\n"); + printer->Indent(); + + printer->Print( + "int tag = input.readTag();\n" + "switch (tag) {\n"); + printer->Indent(); + + printer->Print( + "case 0:\n" // zero signals EOF / limit reached + " done = true;\n" + " break;\n"); + + if (PreserveUnknownFields(descriptor_)) { + printer->Print( + "default: {\n" + " if (!parseUnknownField(input, unknownFields,\n" + " extensionRegistry, tag)) {\n" + " done = true;\n" // it's an endgroup tag + " }\n" + " break;\n" + "}\n"); + } else { + printer->Print( + "default: {\n" + " if (!input.skipField(tag)) {\n" + " done = true;\n" // it's an endgroup tag + " }\n" + " break;\n" + "}\n"); + } + + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = sorted_fields[i]; + uint32 tag = WireFormatLite::MakeTag(field->number(), + WireFormat::WireTypeForFieldType(field->type())); + + printer->Print( + "case $tag$: {\n", + "tag", SimpleItoa(tag)); + printer->Indent(); + + field_generators_.get(field).GenerateParsingCode(printer); + + printer->Outdent(); + printer->Print( + " break;\n" + "}\n"); + + if (field->is_packable()) { + // To make packed = true wire compatible, we generate parsing code from a + // packed version of this field regardless of field->options().packed(). + uint32 packed_tag = WireFormatLite::MakeTag(field->number(), + WireFormatLite::WIRETYPE_LENGTH_DELIMITED); + printer->Print( + "case $tag$: {\n", + "tag", SimpleItoa(packed_tag)); + printer->Indent(); + + field_generators_.get(field).GenerateParsingCodeFromPacked(printer); + + printer->Outdent(); + printer->Print( + " break;\n" + "}\n"); + } + } + + printer->Outdent(); + printer->Outdent(); + printer->Print( + " }\n" // switch (tag) + "}\n"); // while (!done) + + printer->Outdent(); + printer->Print( + "} catch (com.google.protobuf.InvalidProtocolBufferException e) {\n" + " throw e.setUnfinishedMessage(this);\n" + "} catch (java.io.IOException e) {\n" + " throw new com.google.protobuf.InvalidProtocolBufferException(\n" + " e).setUnfinishedMessage(this);\n" + "} finally {\n"); + printer->Indent(); + + // Make repeated field list immutable. + for (int i = 0; i < descriptor_->field_count(); i++) { + const FieldDescriptor* field = sorted_fields[i]; + field_generators_.get(field).GenerateParsingDoneCode(printer); + } + + if (PreserveUnknownFields(descriptor_)) { + // Make unknown fields immutable. + printer->Print("this.unknownFields = unknownFields.build();\n"); + } + + // Make extensions immutable. + printer->Print( + "makeExtensionsImmutable();\n"); + + printer->Outdent(); + printer->Outdent(); + printer->Print( + " }\n" // finally + "}\n"); +} + +// =================================================================== +void ImmutableMessageGenerator::GenerateParser(io::Printer* printer) { + printer->Print( + "$visibility$ static final com.google.protobuf.Parser<$classname$>\n" + " PARSER = new com.google.protobuf.AbstractParser<$classname$>() {\n", + "visibility", + ExposePublicParser(descriptor_->file()) ? "@java.lang.Deprecated public" + : "private", + "classname", descriptor_->name()); + printer->Indent(); + printer->Print( + "public $classname$ parsePartialFrom(\n" + " com.google.protobuf.CodedInputStream input,\n" + " com.google.protobuf.ExtensionRegistryLite extensionRegistry)\n" + " throws com.google.protobuf.InvalidProtocolBufferException {\n", + "classname", descriptor_->name()); + if (context_->HasGeneratedMethods(descriptor_)) { + printer->Print( + " return new $classname$(input, extensionRegistry);\n", + "classname", descriptor_->name()); + } else { + // When parsing constructor isn't generated, use builder to parse + // messages. Note, will fallback to use reflection based mergeFieldFrom() + // in AbstractMessage.Builder. + printer->Indent(); + printer->Print( + "Builder builder = newBuilder();\n" + "try {\n" + " builder.mergeFrom(input, extensionRegistry);\n" + "} catch (com.google.protobuf.InvalidProtocolBufferException e) {\n" + " throw e.setUnfinishedMessage(builder.buildPartial());\n" + "} catch (java.io.IOException e) {\n" + " throw new com.google.protobuf.InvalidProtocolBufferException(\n" + " e.getMessage()).setUnfinishedMessage(\n" + " builder.buildPartial());\n" + "}\n" + "return builder.buildPartial();\n"); + printer->Outdent(); + } + printer->Print( + "}\n"); + printer->Outdent(); + printer->Print( + "};\n" + "\n"); + + printer->Print( + "public static com.google.protobuf.Parser<$classname$> parser() {\n" + " return PARSER;\n" + "}\n" + "\n" + "@java.lang.Override\n" + "public com.google.protobuf.Parser<$classname$> getParserForType() {\n" + " return PARSER;\n" + "}\n" + "\n", + "classname", descriptor_->name()); +} + +// =================================================================== +void ImmutableMessageGenerator::GenerateInitializers(io::Printer* printer) { + for (int i = 0; i < descriptor_->field_count(); i++) { + if (!descriptor_->field(i)->containing_oneof()) { + field_generators_.get(descriptor_->field(i)) + .GenerateInitializationCode(printer); + } + } +} + + +void ImmutableMessageGenerator::GenerateAnyMethods(io::Printer* printer) { + printer->Print( + "private static String getTypeUrl(\n" + " java.lang.String typeUrlPrefix,\n" + " com.google.protobuf.Descriptors.Descriptor descriptor) {\n" + " return typeUrlPrefix.endsWith(\"/\")\n" + " ? typeUrlPrefix + descriptor.getFullName()\n" + " : typeUrlPrefix + \"/\" + descriptor.getFullName();\n" + "}\n" + "\n" + "private static String getTypeNameFromTypeUrl(\n" + " java.lang.String typeUrl) {\n" + " int pos = typeUrl.lastIndexOf('/');\n" + " return pos == -1 ? \"\" : typeUrl.substring(pos + 1);\n" + "}\n" + "\n" + "public static <T extends com.google.protobuf.Message> Any pack(\n" + " T message) {\n" + " return Any.newBuilder()\n" + " .setTypeUrl(getTypeUrl(\"type.googleapis.com\",\n" + " message.getDescriptorForType()))\n" + " .setValue(message.toByteString())\n" + " .build();\n" + "}\n" + "\n" + "/**\n" + " * Packs a message uisng the given type URL prefix. The type URL will\n" + " * be constructed by concatenating the message type's full name to the\n" + " * prefix with an optional \"/\" separator if the prefix doesn't end\n" + " * with \"/\" already.\n" + " */\n" + "public static <T extends com.google.protobuf.Message> Any pack(\n" + " T message, java.lang.String typeUrlPrefix) {\n" + " return Any.newBuilder()\n" + " .setTypeUrl(getTypeUrl(typeUrlPrefix,\n" + " message.getDescriptorForType()))\n" + " .setValue(message.toByteString())\n" + " .build();\n" + "}\n" + "\n" + "public <T extends com.google.protobuf.Message> boolean is(\n" + " java.lang.Class<T> clazz) {\n" + " T defaultInstance =\n" + " com.google.protobuf.Internal.getDefaultInstance(clazz);\n" + " return getTypeNameFromTypeUrl(getTypeUrl()).equals(\n" + " defaultInstance.getDescriptorForType().getFullName());\n" + "}\n" + "\n" + "private volatile com.google.protobuf.Message cachedUnpackValue;\n" + "\n" + "public <T extends com.google.protobuf.Message> T unpack(\n" + " java.lang.Class<T> clazz)\n" + " throws com.google.protobuf.InvalidProtocolBufferException {\n" + " if (!is(clazz)) {\n" + " throw new com.google.protobuf.InvalidProtocolBufferException(\n" + " \"Type of the Any message does not match the given class.\");\n" + " }\n" + " if (cachedUnpackValue != null) {\n" + " return (T) cachedUnpackValue;\n" + " }\n" + " T defaultInstance =\n" + " com.google.protobuf.Internal.getDefaultInstance(clazz);\n" + " T result = (T) defaultInstance.getParserForType()\n" + " .parseFrom(getValue());\n" + " cachedUnpackValue = result;\n" + " return result;\n" + "}\n"); +} + +} // namespace java +} // namespace compiler +} // namespace protobuf +} // namespace google |