org.apache.activemq.protobuf.compiler.AltJavaGenerator Maven / Gradle / Ivy
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/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
package org.apache.activemq.protobuf.compiler;
import static org.apache.activemq.protobuf.WireFormat.WIRETYPE_FIXED32;
import static org.apache.activemq.protobuf.WireFormat.WIRETYPE_FIXED64;
import static org.apache.activemq.protobuf.WireFormat.WIRETYPE_LENGTH_DELIMITED;
import static org.apache.activemq.protobuf.WireFormat.WIRETYPE_VARINT;
import static org.apache.activemq.protobuf.WireFormat.makeTag;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.StringTokenizer;
import org.apache.activemq.protobuf.compiler.parser.ParseException;
import org.apache.activemq.protobuf.compiler.parser.ProtoParser;
public class AltJavaGenerator {
private File out = new File(".");
private File[] path = new File[]{new File(".")};
private ProtoDescriptor proto;
private String javaPackage;
private String outerClassName;
private PrintWriter w;
private int indent;
private ArrayList errors = new ArrayList();
private boolean multipleFiles;
private boolean auto_clear_optional_fields;
public static void main(String[] args) {
AltJavaGenerator generator = new AltJavaGenerator();
args = CommandLineSupport.setOptions(generator, args);
if (args.length == 0) {
System.out.println("No proto files specified.");
}
for (int i = 0; i < args.length; i++) {
try {
System.out.println("Compiling: "+args[i]);
generator.compile(new File(args[i]));
} catch (CompilerException e) {
System.out.println("Protocol Buffer Compiler failed with the following error(s):");
for (String error : e.getErrors() ) {
System.out.println("");
System.out.println(error);
}
System.out.println("");
System.out.println("Compile failed. For more details see error messages listed above.");
return;
}
}
}
interface Closure {
void execute() throws CompilerException;
}
public void compile(File file) throws CompilerException {
// Parse the proto file
FileInputStream is=null;
try {
is = new FileInputStream(file);
ProtoParser parser = new ProtoParser(is);
proto = parser.ProtoDescriptor();
proto.setName(file.getName());
loadImports(proto, file.getParentFile());
proto.validate(errors);
} catch (FileNotFoundException e) {
errors.add("Failed to open: "+file.getPath()+":"+e.getMessage());
} catch (ParseException e) {
errors.add("Failed to parse: "+file.getPath()+":"+e.getMessage());
} finally {
try { is.close(); } catch (Throwable ignore){}
}
if (!errors.isEmpty()) {
throw new CompilerException(errors);
}
// Load the options..
javaPackage = javaPackage(proto);
outerClassName = javaClassName(proto);
// optimizeFor = getOption(proto.getOptions(), "optimize_for", "SPEED");
multipleFiles = isMultipleFilesEnabled(proto);
// deferredDecode = Boolean.parseBoolean(getOption(proto.getOptions(), "deferred_decode", "false"));
auto_clear_optional_fields = Boolean.parseBoolean(getOption(proto.getOptions(), "auto_clear_optional_fields", "false"));
if( multipleFiles ) {
generateProtoFile();
} else {
writeFile(outerClassName, new Closure(){
public void execute() throws CompilerException {
generateProtoFile();
}
});
}
if (!errors.isEmpty()) {
throw new CompilerException(errors);
}
}
private void writeFile(String className, Closure closure) throws CompilerException {
PrintWriter oldWriter = w;
// Figure out the java file name..
File outputFile = out;
if (javaPackage != null) {
String packagePath = javaPackage.replace('.', '/');
outputFile = new File(outputFile, packagePath);
}
outputFile = new File(outputFile, className + ".java");
// Start writing the output file..
outputFile.getParentFile().mkdirs();
FileOutputStream fos=null;
try {
fos = new FileOutputStream(outputFile);
w = new PrintWriter(fos);
closure.execute();
w.flush();
} catch (FileNotFoundException e) {
errors.add("Failed to write to: "+outputFile.getPath()+":"+e.getMessage());
} finally {
try { fos.close(); } catch (Throwable ignore){}
w = oldWriter;
}
}
private void loadImports(ProtoDescriptor proto, File protoDir) {
LinkedHashMap children = new LinkedHashMap();
for (String imp : proto.getImports()) {
File file = new File(protoDir, imp);
for (int i = 0; i < path.length && !file.exists(); i++) {
file = new File(path[i], imp);
}
if ( !file.exists() ) {
errors.add("Cannot load import: "+imp);
}
FileInputStream is=null;
try {
is = new FileInputStream(file);
ProtoParser parser = new ProtoParser(is);
ProtoDescriptor child = parser.ProtoDescriptor();
child.setName(file.getName());
loadImports(child, file.getParentFile());
children.put(imp, child);
} catch (ParseException e) {
errors.add("Failed to parse: "+file.getPath()+":"+e.getMessage());
} catch (FileNotFoundException e) {
errors.add("Failed to open: "+file.getPath()+":"+e.getMessage());
} finally {
try { is.close(); } catch (Throwable ignore){}
}
}
proto.setImportProtoDescriptors(children);
}
private void generateProtoFile() throws CompilerException {
if( multipleFiles ) {
for (EnumDescriptor value : proto.getEnums().values()) {
final EnumDescriptor o = value;
String className = uCamel(o.getName());
writeFile(className, new Closure(){
public void execute() throws CompilerException {
generateFileHeader();
generateEnum(o);
}
});
}
for (MessageDescriptor value : proto.getMessages().values()) {
final MessageDescriptor o = value;
String className = uCamel(o.getName());
writeFile(className, new Closure(){
public void execute() throws CompilerException {
generateFileHeader();
generateMessageBean(o);
}
});
}
} else {
generateFileHeader();
p("public class " + outerClassName + " {");
indent();
for (EnumDescriptor enumType : proto.getEnums().values()) {
generateEnum(enumType);
}
for (MessageDescriptor m : proto.getMessages().values()) {
generateMessageBean(m);
}
unindent();
p("}");
}
}
private void generateFileHeader() {
p("//");
p("// Generated by protoc, do not edit by hand.");
p("//");
if (javaPackage != null) {
p("package " + javaPackage + ";");
p("");
}
}
private void generateMessageBean(MessageDescriptor m) {
String className = uCamel(m.getName());
String beanClassName = className+"Bean";
String bufferClassName = className+"Buffer";
p();
String staticOption = "static ";
if( multipleFiles && m.getParent()==null ) {
staticOption="";
}
String extendsClause = " extends org.apache.activemq.protobuf.PBMessage<"+className+"."+beanClassName+", "+className+"."+bufferClassName+">";
for (EnumFieldDescriptor enumFeild : m.getAssociatedEnumFieldDescriptors()) {
String name = uCamel(enumFeild.getParent().getName());
name = name+"."+name+"Creatable";
extendsClause += ", "+name;
}
p(staticOption+"public interface " + className + extendsClause +" {");
p();
indent();
for (EnumDescriptor enumType : m.getEnums().values()) {
generateEnum(enumType);
}
// Generate the Nested Messages.
for (MessageDescriptor subMessage : m.getMessages().values()) {
generateMessageBean(subMessage);
}
// Generate the Group Messages
for (FieldDescriptor field : m.getFields().values()) {
if( field.isGroup() ) {
generateMessageBean(field.getGroup());
}
}
// Generate the field getters
for (FieldDescriptor field : m.getFields().values()) {
generateFieldGetterSignatures(field);
}
p("public "+beanClassName+" copy();");
p("public "+bufferClassName+" freeze();");
p("public java.lang.StringBuilder toString(java.lang.StringBuilder sb, String prefix);");
p();
p("static public final class "+beanClassName+" implements "+className+" {");
p();
indent();
p(""+bufferClassName+" frozen;");
p(""+beanClassName+" bean;");
p();
p("public "+beanClassName+"() {");
indent();
p("this.bean = this;");
unindent();
p("}");
p();
p("public "+beanClassName+"("+beanClassName+" copy) {");
indent();
p("this.bean = copy;");
unindent();
p("}");
p();
p("public "+beanClassName+" copy() {");
indent();
p("return new "+beanClassName+"(bean);");
unindent();
p("}");
p();
generateMethodFreeze(m, bufferClassName);
p("private void copyCheck() {");
indent();
p("assert frozen==null : org.apache.activemq.protobuf.MessageBufferSupport.FORZEN_ERROR_MESSAGE;");
p("if (bean != this) {");
indent();
p("copy(bean);");
unindent();
p("}");
unindent();
p("}");
p();
generateMethodCopyFromBean(m, beanClassName);
// Generate the field accessors..
for (FieldDescriptor field : m.getFields().values()) {
generateFieldAccessor(beanClassName, field);
}
generateMethodToString(m);
generateMethodMergeFromStream(m, beanClassName);
generateBeanEquals(m, beanClassName);
generateMethodMergeFromBean(m, className);
generateMethodClear(m);
generateReadWriteExternal(m);
for (EnumFieldDescriptor enumFeild : m.getAssociatedEnumFieldDescriptors()) {
String enumName = uCamel(enumFeild.getParent().getName());
p("public "+enumName+" to"+enumName+"() {");
indent();
p("return "+enumName+"."+enumFeild.getName()+";");
unindent();
p("}");
p();
}
unindent();
p("}");
p();
p("static public final class "+bufferClassName+" implements org.apache.activemq.protobuf.MessageBuffer<"+className+"."+beanClassName+", "+className+"."+bufferClassName+">, "+className+" {");
p();
indent();
p("private "+beanClassName+" bean;");
p("private org.apache.activemq.protobuf.Buffer buffer;");
p("private int size=-1;");
p("private int hashCode;");
p();
p("private "+bufferClassName+"(org.apache.activemq.protobuf.Buffer buffer) {");
indent();
p("this.buffer = buffer;");
unindent();
p("}");
p();
p("private "+bufferClassName+"("+beanClassName+" bean) {");
indent();
p("this.bean = bean;");
unindent();
p("}");
p();
p("public "+beanClassName+" copy() {");
indent();
p("return bean().copy();");
unindent();
p("}");
p();
p("public "+bufferClassName+" freeze() {");
indent();
p("return this;");
unindent();
p("}");
p();
p("private "+beanClassName+" bean() {");
indent();
p("if (bean == null) {");
indent();
p("try {");
indent();
p("bean = new "+beanClassName+"().mergeUnframed(new org.apache.activemq.protobuf.CodedInputStream(buffer));");
p("bean.frozen=this;");
unindent();
p("} catch (org.apache.activemq.protobuf.InvalidProtocolBufferException e) {");
indent();
p("throw new RuntimeException(e);");
unindent();
p("} catch (java.io.IOException e) {");
indent();
p("throw new RuntimeException(\"An IOException was thrown (should never happen in this method).\", e);");
unindent();
p("}");
unindent();
p("}");
p("return bean;");
unindent();
p("}");
p();
p("public String toString() {");
indent();
p("return bean().toString();");
unindent();
p("}");
p();
p("public java.lang.StringBuilder toString(java.lang.StringBuilder sb, String prefix) {");
indent();
p("return bean().toString(sb, prefix);");
unindent();
p("}");
p();
for (FieldDescriptor field : m.getFields().values()) {
generateBufferGetters(field);
}
generateMethodWrite(m);
generateMethodSerializedSize(m);
generateMethodParseFrom(m, bufferClassName, beanClassName);
generateBufferEquals(m, bufferClassName);
p("public boolean frozen() {");
indent();
p("return true;");
unindent();
p("}");
for (EnumFieldDescriptor enumFeild : m.getAssociatedEnumFieldDescriptors()) {
String enumName = uCamel(enumFeild.getParent().getName());
p("public "+enumName+" to"+enumName+"() {");
indent();
p("return "+enumName+"."+enumFeild.getName()+";");
unindent();
p("}");
p();
}
unindent();
p("}");
p();
// generateMethodVisitor(m);
// generateMethodType(m, className);
unindent();
p("}");
p();
}
private void generateMethodFreeze(MessageDescriptor m, String bufferClassName) {
p("public boolean frozen() {");
indent();
p("return frozen!=null;");
unindent();
p("}");
p();
p("public "+bufferClassName+" freeze() {");
indent();
p("if( frozen==null ) {");
indent();
p("frozen = new "+bufferClassName+"(bean);");
p("assert deepFreeze();");
unindent();
p("}");
p("return frozen;");
unindent();
p("}");
p();
p("private boolean deepFreeze() {");
indent();
p("frozen.serializedSizeUnframed();");
p("return true;");
unindent();
p("}");
p();
}
/**
* @param m
* @param className
*/
private void generateMethodCopyFromBean(MessageDescriptor m, String className) {
p("private void copy("+className+" other) {");
indent();
p("this.bean = this;");
for (FieldDescriptor field : m.getFields().values()) {
String lname = lCamel(field.getName());
String type = field.getRule()==FieldDescriptor.REPEATED_RULE ? javaCollectionType(field):javaType(field);
boolean primitive = field.getTypeDescriptor()==null || field.getTypeDescriptor().isEnum();
if( field.isRepeated() ) {
if( primitive ) {
p("this.f_" + lname + " = other.f_" + lname + ";");
p("if( this.f_" + lname + " !=null && !other.frozen()) {");
indent();
p("this.f_" + lname + " = new java.util.ArrayList<"+type+">(this.f_" + lname + ");");
unindent();
p("}");
} else {
p("this.f_" + lname + " = other.f_" + lname + ";");
p("if( this.f_" + lname + " !=null) {");
indent();
p("this.f_" + lname + " = new java.util.ArrayList<"+type+">(other.f_" + lname + ".size());");
p("for( "+type+" e : other.f_" + lname + ") {");
indent();
p("this.f_" + lname + ".add(e.copy());");
unindent();
p("}");
unindent();
p("}");
}
} else {
if( primitive ) {
p("this.f_" + lname + " = other.f_" + lname + ";");
p("this.b_" + lname + " = other.b_" + lname + ";");
} else {
p("this.f_" + lname + " = other.f_" + lname + ";");
p("if( this.f_" + lname + " !=null ) {");
indent();
p("this.f_" + lname + " = this.f_" + lname + ".copy();");
unindent();
p("}");
}
}
}
unindent();
p("}");
p();
}
/**
* If the java_visitor message option is set, then this method generates a visitor method. The option
* speifiies the class name of the visitor and optionally the return value and exceptions thrown by the visitor.
*
* Examples:
*
* option java_visitor = "org.apache.kahadb.store.Visitor";
* generates:
* public void visit(org.apache.kahadb.store.Visitor visitor) {
* visitor.visit(this);
* }
*
* option java_visitor = "org.apache.kahadb.store.Visitor:int:java.io.IOException";
* generates:
* public int visit(org.apache.kahadb.store.Visitor visitor) throws java.io.IOException {
* return visitor.visit(this);
* }
*
* @param m
*/
private void generateMethodVisitor(MessageDescriptor m) {
String javaVisitor = getOption(m.getOptions(), "java_visitor", null);
if( javaVisitor!=null ) {
String returns = "void";
String throwsException = null;
StringTokenizer st = new StringTokenizer(javaVisitor, ":");
String vistorClass = st.nextToken();
if( st.hasMoreTokens() ) {
returns = st.nextToken();
}
if( st.hasMoreTokens() ) {
throwsException = st.nextToken();
}
String throwsClause = "";
if( throwsException!=null ) {
throwsClause = "throws "+throwsException+" ";
}
p("public "+returns+" visit("+vistorClass+" visitor) "+throwsClause+ "{");
indent();
if( "void".equals(returns) ) {
p("visitor.visit(this);");
} else {
p("return visitor.visit(this);");
}
unindent();
p("}");
p();
}
}
private void generateMethodType(MessageDescriptor m, String className) {
String typeEnum = getOption(m.getOptions(), "java_type_method", null);
if( typeEnum!=null ) {
TypeDescriptor typeDescriptor = m.getType(typeEnum);
if( typeDescriptor == null ) {
typeDescriptor = m.getProtoDescriptor().getType(typeEnum);
}
if( typeDescriptor == null || !typeDescriptor.isEnum() ) {
errors.add("The java_type_method option on the "+m.getName()+" message does not point to valid enum type");
return;
}
String constant = constantCase(className);
EnumDescriptor enumDescriptor = (EnumDescriptor)typeDescriptor;
if( enumDescriptor.getFields().get(constant) == null ) {
errors.add("The java_type_method option on the "+m.getName()+" message does not points to the "+typeEnum+" enum but it does not have an entry for "+constant);
}
String type = javaType(typeDescriptor);
p("public "+type+" type() {");
indent();
p("return "+type+"."+constant+";");
unindent();
p("}");
p();
}
}
private void generateMethodParseFrom(MessageDescriptor m, String bufferClassName, String beanClassName) {
p("public static "+beanClassName+" parseUnframed(org.apache.activemq.protobuf.CodedInputStream data) throws org.apache.activemq.protobuf.InvalidProtocolBufferException, java.io.IOException {");
indent();
p("return new "+beanClassName+"().mergeUnframed(data);");
unindent();
p("}");
p();
p("public static "+beanClassName+" parseUnframed(java.io.InputStream data) throws org.apache.activemq.protobuf.InvalidProtocolBufferException, java.io.IOException {");
indent();
p("return parseUnframed(new org.apache.activemq.protobuf.CodedInputStream(data));");
unindent();
p("}");
p();
p("public static "+bufferClassName+" parseUnframed(org.apache.activemq.protobuf.Buffer data) throws org.apache.activemq.protobuf.InvalidProtocolBufferException {");
indent();
p("return new "+bufferClassName+"(data);");
unindent();
p("}");
p();
p("public static "+bufferClassName+" parseUnframed(byte[] data) throws org.apache.activemq.protobuf.InvalidProtocolBufferException {");
indent();
p("return parseUnframed(new org.apache.activemq.protobuf.Buffer(data));");
unindent();
p("}");
p();
p("public static "+bufferClassName+" parseFramed(org.apache.activemq.protobuf.CodedInputStream data) throws org.apache.activemq.protobuf.InvalidProtocolBufferException, java.io.IOException {");
indent();
p("int length = data.readRawVarint32();");
p("int oldLimit = data.pushLimit(length);");
p(""+bufferClassName+" rc = parseUnframed(data.readRawBytes(length));");
p("data.popLimit(oldLimit);");
p("return rc;");
unindent();
p("}");
p();
p("public static "+bufferClassName+" parseFramed(org.apache.activemq.protobuf.Buffer data) throws org.apache.activemq.protobuf.InvalidProtocolBufferException {");
indent();
p("try {");
indent();
p("org.apache.activemq.protobuf.CodedInputStream input = new org.apache.activemq.protobuf.CodedInputStream(data);");
p(""+bufferClassName+" rc = parseFramed(input);");
p("input.checkLastTagWas(0);");
p("return rc;");
unindent();
p("} catch (org.apache.activemq.protobuf.InvalidProtocolBufferException e) {");
indent();
p("throw e;");
unindent();
p("} catch (java.io.IOException e) {");
indent();
p("throw new RuntimeException(\"An IOException was thrown (should never happen in this method).\", e);");
unindent();
p("}");
unindent();
p("}");
p();
p("public static "+bufferClassName+" parseFramed(byte[] data) throws org.apache.activemq.protobuf.InvalidProtocolBufferException {");
indent();
p("return parseFramed(new org.apache.activemq.protobuf.Buffer(data));");
unindent();
p("}");
p();
p("public static "+bufferClassName+" parseFramed(java.io.InputStream data) throws org.apache.activemq.protobuf.InvalidProtocolBufferException, java.io.IOException {");
indent();
p("return parseUnframed(org.apache.activemq.protobuf.MessageBufferSupport.readFrame(data));");
unindent();
p("}");
p();
}
private void generateBeanEquals(MessageDescriptor m, String className) {
p("public boolean equals(Object obj) {");
indent();
p("if( obj==this )");
p(" return true;");
p("");
p("if( obj==null || obj.getClass()!="+className+".class )");
p(" return false;");
p("");
p("return equals(("+className+")obj);");
unindent();
p("}");
p("");
p("public boolean equals("+className+" obj) {");
indent();
for (FieldDescriptor field : m.getFields().values()) {
String uname = uCamel(field.getName());
String getterMethod="get"+uname+"()";
String hasMethod = "has"+uname+"()";
if( field.getRule() == FieldDescriptor.REPEATED_RULE ) {
getterMethod = "get"+uname+"List()";
}
p("if ("+hasMethod+" ^ obj."+hasMethod+" ) ");
p(" return false;");
if( field.getRule() != FieldDescriptor.REPEATED_RULE && (field.isNumberType() || field.getType()==FieldDescriptor.BOOL_TYPE) ) {
p("if ("+hasMethod+" && ( "+getterMethod+"!=obj."+getterMethod+" ))");
} else {
p("if ("+hasMethod+" && ( !"+getterMethod+".equals(obj."+getterMethod+") ))");
}
p(" return false;");
}
p("return true;");
unindent();
p("}");
p("");
p("public int hashCode() {");
indent();
int hc = className.hashCode();
p("int rc="+hc+";");
int counter=0;
for (FieldDescriptor field : m.getFields().values()) {
counter++;
String uname = uCamel(field.getName());
String getterMethod="get"+uname+"()";
String hasMethod = "has"+uname+"()";
if( field.getRule() == FieldDescriptor.REPEATED_RULE ) {
getterMethod = "get"+uname+"List()";
}
p("if ("+hasMethod+") {");
indent();
if( field.getRule() == FieldDescriptor.REPEATED_RULE ) {
p("rc ^= ( "+uname.hashCode()+"^"+getterMethod+".hashCode() );");
} else if( field.isInteger32Type() ) {
p("rc ^= ( "+uname.hashCode()+"^"+getterMethod+" );");
} else if( field.isInteger64Type() ) {
p("rc ^= ( "+uname.hashCode()+"^(new Long("+getterMethod+")).hashCode() );");
} else if( field.getType()==FieldDescriptor.DOUBLE_TYPE ) {
p("rc ^= ( "+uname.hashCode()+"^(new Double("+getterMethod+")).hashCode() );");
} else if( field.getType()==FieldDescriptor.FLOAT_TYPE ) {
p("rc ^= ( "+uname.hashCode()+"^(new Double("+getterMethod+")).hashCode() );");
} else if( field.getType()==FieldDescriptor.BOOL_TYPE ) {
p("rc ^= ( "+uname.hashCode()+"^ ("+getterMethod+"? "+counter+":-"+counter+") );");
} else {
p("rc ^= ( "+uname.hashCode()+"^"+getterMethod+".hashCode() );");
}
unindent();
p("}");
}
p("return rc;");
unindent();
p("}");
p("");
}
private void generateBufferEquals(MessageDescriptor m, String className) {
p("public boolean equals(Object obj) {");
indent();
p("if( obj==this )");
p(" return true;");
p("");
p("if( obj==null || obj.getClass()!="+className+".class )");
p(" return false;");
p("");
p("return equals(("+className+")obj);");
unindent();
p("}");
p("");
p("public boolean equals("+className+" obj) {");
indent();
p("return toUnframedBuffer().equals(obj.toUnframedBuffer());");
unindent();
p("}");
p("");
p("public int hashCode() {");
indent();
int hc = className.hashCode();
p("if( hashCode==0 ) {");
p("hashCode="+hc+" ^ toUnframedBuffer().hashCode();");
p("}");
p("return hashCode;");
unindent();
p("}");
p("");
}
/**
* @param m
*/
private void generateMethodSerializedSize(MessageDescriptor m) {
p("public int serializedSizeFramed() {");
indent();
p("int t = serializedSizeUnframed();");
p("return org.apache.activemq.protobuf.CodedOutputStream.computeRawVarint32Size(t) + t;");
unindent();
p("}");
p();
p("public int serializedSizeUnframed() {");
indent();
p("if (buffer != null) {");
indent();
p("return buffer.length;");
unindent();
p("}");
p("if (size != -1)");
p(" return size;");
p();
p("size = 0;");
for (FieldDescriptor field : m.getFields().values()) {
String uname = uCamel(field.getName());
String getter="get"+uname+"()";
String type = javaType(field);
if( !field.isRequired() ) {
p("if (has"+uname+"()) {");
indent();
}
if( field.getRule() == FieldDescriptor.REPEATED_RULE ) {
p("for ("+type+" i : get"+uname+"List()) {");
indent();
getter = "i";
}
if( field.getType()==FieldDescriptor.STRING_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeStringSize("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.BYTES_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeBytesSize("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.BOOL_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeBoolSize("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.DOUBLE_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeDoubleSize("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.FLOAT_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeFloatSize("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.INT32_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeInt32Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.INT64_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeInt64Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SINT32_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeSInt32Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SINT64_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeSInt64Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.UINT32_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeUInt32Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.UINT64_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeUInt64Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.FIXED32_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeFixed32Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.FIXED64_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeFixed64Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SFIXED32_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeSFixed32Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SFIXED64_TYPE ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeSFixed64Size("+field.getTag()+", "+getter+");");
} else if( field.getTypeDescriptor().isEnum() ) {
p("size += org.apache.activemq.protobuf.CodedOutputStream.computeEnumSize("+field.getTag()+", "+getter+".getNumber());");
} else if ( field.getGroup()!=null ) {
errors.add("This code generator does not support group fields.");
// p("size += org.apache.activemq.protobuf.MessageBufferSupport.computeGroupSize("+field.getTag()+", ("+type+"Buffer)"+getter+");");
} else {
p("size += org.apache.activemq.protobuf.MessageBufferSupport.computeMessageSize("+field.getTag()+", "+getter+".freeze());");
}
if( field.getRule() == FieldDescriptor.REPEATED_RULE ) {
unindent();
p("}");
}
if( !field.isRequired() ) {
unindent();
p("}");
}
}
// TODO: handle unknown fields
// size += getUnknownFields().getSerializedSize();");
p("return size;");
unindent();
p("}");
p();
}
/**
* @param m
*/
private void generateMethodWrite(MessageDescriptor m) {
p("public org.apache.activemq.protobuf.Buffer toUnframedBuffer() {");
indent();
p("if( buffer !=null ) {");
indent();
p("return buffer;");
unindent();
p("}");
p("return org.apache.activemq.protobuf.MessageBufferSupport.toUnframedBuffer(this);");
unindent();
p("}");
p();
p("public org.apache.activemq.protobuf.Buffer toFramedBuffer() {");
indent();
p("return org.apache.activemq.protobuf.MessageBufferSupport.toFramedBuffer(this);");
unindent();
p("}");
p();
p("public byte[] toUnframedByteArray() {");
indent();
p("return toUnframedBuffer().toByteArray();");
unindent();
p("}");
p();
p("public byte[] toFramedByteArray() {");
indent();
p("return toFramedBuffer().toByteArray();");
unindent();
p("}");
p();
p("public void writeFramed(org.apache.activemq.protobuf.CodedOutputStream output) throws java.io.IOException {");
indent();
p("output.writeRawVarint32(serializedSizeUnframed());");
p("writeUnframed(output);");
unindent();
p("}");
p();
p("public void writeFramed(java.io.OutputStream output) throws java.io.IOException {");
indent();
p("org.apache.activemq.protobuf.CodedOutputStream codedOutput = new org.apache.activemq.protobuf.CodedOutputStream(output);");
p("writeFramed(codedOutput);");
p("codedOutput.flush();");
unindent();
p("}");
p();
p("public void writeUnframed(java.io.OutputStream output) throws java.io.IOException {");
indent();
p("org.apache.activemq.protobuf.CodedOutputStream codedOutput = new org.apache.activemq.protobuf.CodedOutputStream(output);");
p("writeUnframed(codedOutput);");
p("codedOutput.flush();");
unindent();
p("}");
p();
p("public void writeUnframed(org.apache.activemq.protobuf.CodedOutputStream output) throws java.io.IOException {");
indent();
p("if (buffer == null) {");
indent();
p("int size = serializedSizeUnframed();");
p("buffer = output.getNextBuffer(size);");
p("org.apache.activemq.protobuf.CodedOutputStream original=null;");
p("if( buffer == null ) {");
indent();
p("buffer = new org.apache.activemq.protobuf.Buffer(new byte[size]);");
p("original = output;");
p("output = new org.apache.activemq.protobuf.CodedOutputStream(buffer);");
unindent();
p("}");
for (FieldDescriptor field : m.getFields().values()) {
String uname = uCamel(field.getName());
String getter="bean.get"+uname+"()";
String type = javaType(field);
if( !field.isRequired() ) {
p("if (bean.has"+uname+"()) {");
indent();
}
if( field.getRule() == FieldDescriptor.REPEATED_RULE ) {
p("for ("+type+" i : bean.get"+uname+"List()) {");
indent();
getter = "i";
}
if( field.getType()==FieldDescriptor.STRING_TYPE ) {
p("output.writeString("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.BYTES_TYPE ) {
p("output.writeBytes("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.BOOL_TYPE ) {
p("output.writeBool("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.DOUBLE_TYPE ) {
p("output.writeDouble("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.FLOAT_TYPE ) {
p("output.writeFloat("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.INT32_TYPE ) {
p("output.writeInt32("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.INT64_TYPE ) {
p("output.writeInt64("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SINT32_TYPE ) {
p("output.writeSInt32("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SINT64_TYPE ) {
p("output.writeSInt64("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.UINT32_TYPE ) {
p("output.writeUInt32("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.UINT64_TYPE ) {
p("output.writeUInt64("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.FIXED32_TYPE ) {
p("output.writeFixed32("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.FIXED64_TYPE ) {
p("output.writeFixed64("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SFIXED32_TYPE ) {
p("output.writeSFixed32("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SFIXED64_TYPE ) {
p("output.writeSFixed64("+field.getTag()+", "+getter+");");
} else if( field.getTypeDescriptor().isEnum() ) {
p("output.writeEnum("+field.getTag()+", "+getter+".getNumber());");
} else if ( field.getGroup()!=null ) {
errors.add("This code generator does not support group fields.");
// p("writeGroup(output, "+field.getTag()+", "+getter+");");
} else {
p("org.apache.activemq.protobuf.MessageBufferSupport.writeMessage(output, "+field.getTag()+", "+getter+".freeze());");
}
if( field.getRule() == FieldDescriptor.REPEATED_RULE ) {
unindent();
p("}");
}
if( !field.isRequired() ) {
unindent();
p("}");
}
}
p("if( original !=null ) {");
indent();
p("output.checkNoSpaceLeft();");
p("output = original;");
p("output.writeRawBytes(buffer);");
unindent();
p("}");
unindent();
p("} else {");
indent();
p("output.writeRawBytes(buffer);");
unindent();
p("}");
unindent();
p("}");
p();
}
/**
* @param m
* @param className
*/
private void generateMethodMergeFromStream(MessageDescriptor m, String className) {
p("public "+className+" mergeUnframed(java.io.InputStream input) throws java.io.IOException {");
indent();
p("return mergeUnframed(new org.apache.activemq.protobuf.CodedInputStream(input));");
unindent();
p("}");
p();
p("public "+className+" mergeUnframed(org.apache.activemq.protobuf.CodedInputStream input) throws java.io.IOException {");
indent();
{
p("copyCheck();");
p("while (true) {");
indent();
{
p("int tag = input.readTag();");
p("if ((tag & 0x07) == 4) {");
p(" return this;");
p("}");
p("switch (tag) {");
p("case 0:");
p(" return this;");
p("default: {");
p(" break;");
p("}");
for (FieldDescriptor field : m.getFields().values()) {
String uname = uCamel(field.getName());
String setter = "set" + uname;
boolean repeated = field.getRule() == FieldDescriptor.REPEATED_RULE;
if (repeated) {
setter = "create" + uname + "List().add";
}
if (field.getType() == FieldDescriptor.STRING_TYPE) {
p("case "
+ makeTag(field.getTag(),
WIRETYPE_LENGTH_DELIMITED) + ":");
indent();
p(setter + "(input.readString());");
} else if (field.getType() == FieldDescriptor.BYTES_TYPE) {
p("case "+ makeTag(field.getTag(), WIRETYPE_LENGTH_DELIMITED) + ":");
indent();
String override = getOption(field.getOptions(), "java_override_type", null);
if( "AsciiBuffer".equals(override) ) {
p(setter + "(new org.apache.activemq.protobuf.AsciiBuffer(input.readBytes()));");
} else if( "UTF8Buffer".equals(override) ) {
p(setter + "(new org.apache.activemq.protobuf.UTF8Buffer(input.readBytes()));");
} else {
p(setter + "(input.readBytes());");
}
} else if (field.getType() == FieldDescriptor.BOOL_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_VARINT)+ ":");
indent();
p(setter + "(input.readBool());");
} else if (field.getType() == FieldDescriptor.DOUBLE_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_FIXED64)
+ ":");
indent();
p(setter + "(input.readDouble());");
} else if (field.getType() == FieldDescriptor.FLOAT_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_FIXED32)
+ ":");
indent();
p(setter + "(input.readFloat());");
} else if (field.getType() == FieldDescriptor.INT32_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_VARINT)
+ ":");
indent();
p(setter + "(input.readInt32());");
} else if (field.getType() == FieldDescriptor.INT64_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_VARINT)
+ ":");
indent();
p(setter + "(input.readInt64());");
} else if (field.getType() == FieldDescriptor.SINT32_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_VARINT)
+ ":");
indent();
p(setter + "(input.readSInt32());");
} else if (field.getType() == FieldDescriptor.SINT64_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_VARINT)
+ ":");
indent();
p(setter + "(input.readSInt64());");
} else if (field.getType() == FieldDescriptor.UINT32_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_VARINT)
+ ":");
indent();
p(setter + "(input.readUInt32());");
} else if (field.getType() == FieldDescriptor.UINT64_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_VARINT)
+ ":");
indent();
p(setter + "(input.readUInt64());");
} else if (field.getType() == FieldDescriptor.FIXED32_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_FIXED32)
+ ":");
indent();
p(setter + "(input.readFixed32());");
} else if (field.getType() == FieldDescriptor.FIXED64_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_FIXED64)
+ ":");
indent();
p(setter + "(input.readFixed64());");
} else if (field.getType() == FieldDescriptor.SFIXED32_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_FIXED32)
+ ":");
indent();
p(setter + "(input.readSFixed32());");
} else if (field.getType() == FieldDescriptor.SFIXED64_TYPE) {
p("case " + makeTag(field.getTag(), WIRETYPE_FIXED64)
+ ":");
indent();
p(setter + "(input.readSFixed64());");
} else if (field.getTypeDescriptor().isEnum()) {
p("case " + makeTag(field.getTag(), WIRETYPE_VARINT)
+ ":");
indent();
String type = javaType(field);
p("{");
indent();
p("int t = input.readEnum();");
p("" + type + " value = " + type + ".valueOf(t);");
p("if( value !=null ) {");
indent();
p(setter + "(value);");
unindent();
p("}");
// TODO: else store it as an known
unindent();
p("}");
} else if (field.getGroup() != null) {
errors.add("This code generator does not support group fields.");
// p("case "+ makeTag(field.getTag(), WIRETYPE_START_GROUP)+ ":");
// indent();
// String type = javaType(field);
// if (repeated) {
// p(setter + "(readGroup(input, " + field.getTag()+ ", new " + type + "()));");
// } else {
// p("if (has" + uname + "()) {");
// indent();
// p("readGroup(input, " + field.getTag() + ", get"
// + uname + "());");
// unindent();
// p("} else {");
// indent();
// p(setter + "(readGroup(input, " + field.getTag()
// + ",new " + type + "()));");
// unindent();
// p("}");
// }
// p("");
} else {
p("case "+ makeTag(field.getTag(),WIRETYPE_LENGTH_DELIMITED) + ":");
indent();
String type = javaType(field);
if (repeated) {
p(setter + "("+javaRelatedType(type, "Buffer")+".parseFramed(input));");
} else {
p("if (has" + uname + "()) {");
indent();
p("set" + uname + "(get" + uname + "().copy().mergeFrom("+javaRelatedType(type, "Buffer")+".parseFramed(input)));");
unindent();
p("} else {");
indent();
p(setter + "("+javaRelatedType(type, "Buffer")+".parseFramed(input));");
unindent();
p("}");
}
}
p("break;");
unindent();
}
p("}");
}
unindent();
p("}");
}
unindent();
p("}");
}
/**
* @param m
* @param className
*/
private void generateMethodMergeFromBean(MessageDescriptor m, String className) {
p("public "+className+"Bean mergeFrom("+className+" other) {");
indent();
p("copyCheck();");
for (FieldDescriptor field : m.getFields().values()) {
String uname = uCamel(field.getName());
p("if (other.has"+uname+"()) {");
indent();
if( field.isScalarType() || field.getTypeDescriptor().isEnum() ) {
if( field.isRepeated() ) {
p("get"+uname+"List().addAll(other.get"+uname+"List());");
} else {
p("set"+uname+"(other.get"+uname+"());");
}
} else {
String type = javaType(field);
// It's complex type...
if( field.isRepeated() ) {
p("for("+type+" element: other.get"+uname+"List() ) {");
indent();
p("get"+uname+"List().add(element.copy());");
unindent();
p("}");
} else {
p("if (has"+uname+"()) {");
indent();
p("set"+uname+"(get"+uname+"().copy().mergeFrom(other.get"+uname+"()));");
unindent();
p("} else {");
indent();
p("set"+uname+"(other.get"+uname+"().copy());");
unindent();
p("}");
}
}
unindent();
p("}");
}
p("return this;");
unindent();
p("}");
p();
}
/**
* @param m
*/
private void generateMethodClear(MessageDescriptor m) {
p("public void clear() {");
indent();
for (FieldDescriptor field : m.getFields().values()) {
String uname = uCamel(field.getName());
p("clear" + uname + "();");
}
unindent();
p("}");
p();
}
private void generateReadWriteExternal(MessageDescriptor m) {
p("public void readExternal(java.io.DataInput in) throws java.io.IOException {");
indent();
p("assert frozen==null : org.apache.activemq.protobuf.MessageBufferSupport.FORZEN_ERROR_MESSAGE;");
p("bean = this;");
p("frozen = null;");
for (FieldDescriptor field : m.getFields().values()) {
String lname = lCamel(field.getName());
String type = javaType(field);
boolean repeated = field.getRule()==FieldDescriptor.REPEATED_RULE;
// Create the fields..
if( repeated ) {
p("{");
indent();
p("int size = in.readShort();");
p("if( size>=0 ) {");
indent();
p("f_"+lname+" = new java.util.ArrayList<" + javaCollectionType(field) + ">(size);");
p("for(int i=0; i=0 ) {");
indent();
p("byte b[] = new byte[size];");
p("in.readFully(b);");
p("f_"+lname+" = new "+type+"(b);");
p("b_"+lname+" = true;");
unindent();
p("} else {");
indent();
p("f_"+lname+" = null;");
p("b_"+lname+" = false;");
unindent();
p("}");
unindent();
p("}");
} else if (field.getTypeDescriptor().isEnum() ) {
p("if( in.readBoolean() ) {");
indent();
p("f_"+lname+" = " + type + ".valueOf(in.readShort());");
p("b_"+lname+" = true;");
unindent();
p("} else {");
indent();
p("f_"+lname+" = null;");
p("b_"+lname+" = false;");
unindent();
p("}");
} else {
p("if( in.readBoolean() ) {");
indent();
p(""+javaRelatedType(type, "Bean")+" o = new "+javaRelatedType(type, "Bean")+"();");
p("o.readExternal(in);");
p("f_"+lname+" = o;");
unindent();
p("} else {");
indent();
p("f_"+lname+" = null;");
unindent();
p("}");
}
}
}
unindent();
p("}");
p();
p("public void writeExternal(java.io.DataOutput out) throws java.io.IOException {");
indent();
for (FieldDescriptor field : m.getFields().values()) {
String lname = lCamel(field.getName());
boolean repeated = field.getRule()==FieldDescriptor.REPEATED_RULE;
// Create the fields..
if( repeated ) {
p("if( bean.f_"+lname+"!=null ) {");
indent();
p("out.writeShort(bean.f_"+lname+".size());");
p("for(" + javaCollectionType(field) + " o : bean.f_"+lname+") {");
indent();
if( field.isInteger32Type() ) {
p("out.writeInt(o);");
} else if( field.isInteger64Type() ) {
p("out.writeLong(o);");
} else if( field.getType() == FieldDescriptor.DOUBLE_TYPE ) {
p("out.writeDouble(o);");
} else if( field.getType() == FieldDescriptor.FLOAT_TYPE ) {
p("out.writeFloat(o);");
} else if( field.getType() == FieldDescriptor.BOOL_TYPE ) {
p("out.writeBoolean(o);");
} else if( field.getType() == FieldDescriptor.STRING_TYPE ) {
p("out.writeUTF(o);");
} else if( field.getType() == FieldDescriptor.BYTES_TYPE ) {
p("out.writeInt(o.getLength());");
p("out.write(o.getData(), o.getOffset(), o.getLength());");
} else if (field.getTypeDescriptor().isEnum() ) {
p("out.writeShort(o.getNumber());");
} else {
p("o.copy().writeExternal(out);");
}
unindent();
p("}");
unindent();
p("} else {");
indent();
p("out.writeShort(-1);");
unindent();
p("}");
} else {
if( field.isInteger32Type() ) {
p("out.writeInt(bean.f_"+lname+");");
} else if( field.isInteger64Type() ) {
p("out.writeLong(bean.f_"+lname+");");
} else if( field.getType() == FieldDescriptor.DOUBLE_TYPE ) {
p("out.writeDouble(bean.f_"+lname+");");
} else if( field.getType() == FieldDescriptor.FLOAT_TYPE ) {
p("out.writeFloat(bean.f_"+lname+");");
} else if( field.getType() == FieldDescriptor.BOOL_TYPE ) {
p("out.writeBoolean(bean.f_"+lname+");");
} else if( field.getType() == FieldDescriptor.STRING_TYPE ) {
p("if( bean.f_"+lname+"!=null ) {");
indent();
p("out.writeBoolean(true);");
p("out.writeUTF(bean.f_"+lname+");");
unindent();
p("} else {");
indent();
p("out.writeBoolean(false);");
unindent();
p("}");
} else if( field.getType() == FieldDescriptor.BYTES_TYPE ) {
p("if( bean.f_"+lname+"!=null ) {");
indent();
p("out.writeInt(bean.f_"+lname+".getLength());");
p("out.write(bean.f_"+lname+".getData(), bean.f_"+lname+".getOffset(), bean.f_"+lname+".getLength());");
unindent();
p("} else {");
indent();
p("out.writeInt(-1);");
unindent();
p("}");
} else if (field.getTypeDescriptor().isEnum() ) {
p("if( bean.f_"+lname+"!=null ) {");
indent();
p("out.writeBoolean(true);");
p("out.writeShort(bean.f_"+lname+".getNumber());");
unindent();
p("} else {");
indent();
p("out.writeBoolean(false);");
unindent();
p("}");
} else {
p("if( bean.f_"+lname+"!=null ) {");
indent();
p("out.writeBoolean(true);");
p("bean.f_"+lname+".copy().writeExternal(out);");
unindent();
p("} else {");
indent();
p("out.writeBoolean(false);");
unindent();
p("}");
}
}
}
unindent();
p("}");
p();
}
// private void generateMethodAssertInitialized(MessageDescriptor m, String className) {
//
// p("public java.util.ArrayList missingFields() {");
// indent();
// p("java.util.ArrayList missingFields = super.missingFields();");
//
// for (FieldDescriptor field : m.getFields().values()) {
// String uname = uCamel(field.getName());
// if( field.isRequired() ) {
// p("if( !has" + uname + "() ) {");
// indent();
// p("missingFields.add(\""+field.getName()+"\");");
// unindent();
// p("}");
// }
// }
//
// if( !deferredDecode ) {
// for (FieldDescriptor field : m.getFields().values()) {
// if( field.getTypeDescriptor()!=null && !field.getTypeDescriptor().isEnum()) {
// String uname = uCamel(field.getName());
// p("if( has" + uname + "() ) {");
// indent();
// if( !field.isRepeated() ) {
// p("try {");
// indent();
// p("get" + uname + "().assertInitialized();");
// unindent();
// p("} catch (org.apache.activemq.protobuf.UninitializedMessageException e){");
// indent();
// p("missingFields.addAll(prefix(e.getMissingFields(),\""+field.getName()+".\"));");
// unindent();
// p("}");
// } else {
// String type = javaCollectionType(field);
// p("java.util.List<"+type+"> l = get" + uname + "List();");
// p("for( int i=0; i < l.size(); i++ ) {");
// indent();
// p("try {");
// indent();
// p("l.get(i).assertInitialized();");
// unindent();
// p("} catch (org.apache.activemq.protobuf.UninitializedMessageException e){");
// indent();
// p("missingFields.addAll(prefix(e.getMissingFields(),\""+field.getName()+"[\"+i+\"]\"));");
// unindent();
// p("}");
// unindent();
// p("}");
// }
// unindent();
// p("}");
// }
// }
// }
// p("return missingFields;");
// unindent();
// p("}");
// p();
// }
private void generateMethodToString(MessageDescriptor m) {
p("public String toString() {");
indent();
p("return toString(new java.lang.StringBuilder(), \"\").toString();");
unindent();
p("}");
p();
p("public java.lang.StringBuilder toString(java.lang.StringBuilder sb, String prefix) {");
indent();
for (FieldDescriptor field : m.getFields().values()) {
String uname = uCamel(field.getName());
p("if( has" + uname + "() ) {");
indent();
if( field.isRepeated() ) {
String type = javaCollectionType(field);
p("java.util.List<"+type+"> l = get" + uname + "List();");
p("for( int i=0; i < l.size(); i++ ) {");
indent();
if( field.getTypeDescriptor()!=null && !field.getTypeDescriptor().isEnum()) {
p("sb.append(prefix+\""+field.getName()+"[\"+i+\"] {\\n\");");
p("l.get(i).toString(sb, prefix+\" \");");
p("sb.append(prefix+\"}\\n\");");
} else {
p("sb.append(prefix+\""+field.getName()+"[\"+i+\"]: \");");
p("sb.append(l.get(i));");
p("sb.append(\"\\n\");");
}
unindent();
p("}");
} else {
if( field.getTypeDescriptor()!=null && !field.getTypeDescriptor().isEnum()) {
p("sb.append(prefix+\""+field.getName()+" {\\n\");");
p("get" + uname + "().toString(sb, prefix+\" \");");
p("sb.append(prefix+\"}\\n\");");
} else {
p("sb.append(prefix+\""+field.getName()+": \");");
p("sb.append(get" + uname + "());");
p("sb.append(\"\\n\");");
}
}
unindent();
p("}");
}
p("return sb;");
unindent();
p("}");
p();
}
/**
* @param field
* @param className
*/
private void generateBufferGetters(FieldDescriptor field) {
String uname = uCamel(field.getName());
String type = field.getRule()==FieldDescriptor.REPEATED_RULE ? javaCollectionType(field):javaType(field);
boolean repeated = field.getRule()==FieldDescriptor.REPEATED_RULE;
// Create the fields..
p("// " + field.getRule() + " " + field.getType() + " " + field.getName() + " = " + field.getTag() + ";");
if( repeated ) {
// Create the field accessors
p("public boolean has" + uname + "() {");
indent();
p("return bean().has" + uname + "();");
unindent();
p("}");
p();
p("public java.util.List<" + type + "> get" + uname + "List() {");
indent();
p("return bean().get" + uname + "List();");
unindent();
p("}");
p();
p("public int get" + uname + "Count() {");
indent();
p("return bean().get" + uname + "Count();");
unindent();
p("}");
p();
p("public " + type + " get" + uname + "(int index) {");
indent();
p("return bean().get" + uname + "(index);");
unindent();
p("}");
p();
} else {
// Create the field accessors
p("public boolean has" + uname + "() {");
indent();
p("return bean().has" + uname + "();");
unindent();
p("}");
p();
p("public " + type + " get" + uname + "() {");
indent();
p("return bean().get" + uname + "();");
unindent();
p("}");
p();
}
}
/**
* @param field
* @param className
*/
private void generateFieldGetterSignatures(FieldDescriptor field) {
String uname = uCamel(field.getName());
String type = field.getRule()==FieldDescriptor.REPEATED_RULE ? javaCollectionType(field):javaType(field);
boolean repeated = field.getRule()==FieldDescriptor.REPEATED_RULE;
// Create the fields..
p("// " + field.getRule() + " " + field.getType() + " " + field.getName() + " = " + field.getTag() + ";");
if( repeated ) {
// Create the field accessors
p("public boolean has" + uname + "();");
p("public java.util.List<" + type + "> get" + uname + "List();");
p("public int get" + uname + "Count();");
p("public " + type + " get" + uname + "(int index);");
} else {
// Create the field accessors
p("public boolean has" + uname + "();");
p("public " + type + " get" + uname + "();");
}
}
/**
* @param field
* @param className
*/
private void generateFieldAccessor(String beanClassName, FieldDescriptor field) {
String lname = lCamel(field.getName());
String uname = uCamel(field.getName());
String type = field.getRule()==FieldDescriptor.REPEATED_RULE ? javaCollectionType(field):javaType(field);
String typeDefault = javaTypeDefault(field);
boolean primitive = field.getTypeDescriptor()==null || field.getTypeDescriptor().isEnum();
boolean repeated = field.getRule()==FieldDescriptor.REPEATED_RULE;
// Create the fields..
p("// " + field.getRule() + " " + field.getType() + " " + field.getName() + " = " + field.getTag() + ";");
if( repeated ) {
p("private java.util.List<" + type + "> f_" + lname + ";");
p();
// Create the field accessors
p("public boolean has" + uname + "() {");
indent();
p("return bean.f_" + lname + "!=null && !bean.f_" + lname + ".isEmpty();");
unindent();
p("}");
p();
p("public java.util.List<" + type + "> get" + uname + "List() {");
indent();
p("return bean.f_" + lname + ";");
unindent();
p("}");
p();
p("public java.util.List<" + type + "> create" + uname + "List() {");
indent();
p("copyCheck();");
p("if( this.f_" + lname + " == null ) {");
indent();
p("this.f_" + lname + " = new java.util.ArrayList<" + type + ">();");
unindent();
p("}");
p("return bean.f_" + lname + ";");
unindent();
p("}");
p();
p("public "+beanClassName+" set" + uname + "List(java.util.List<" + type + "> " + lname + ") {");
indent();
p("copyCheck();");
p("this.f_" + lname + " = " + lname + ";");
p("return this;");
unindent();
p("}");
p();
p("public int get" + uname + "Count() {");
indent();
p("if( bean.f_" + lname + " == null ) {");
indent();
p("return 0;");
unindent();
p("}");
p("return bean.f_" + lname + ".size();");
unindent();
p("}");
p();
p("public " + type + " get" + uname + "(int index) {");
indent();
p("if( bean.f_" + lname + " == null ) {");
indent();
p("return null;");
unindent();
p("}");
p("return bean.f_" + lname + ".get(index);");
unindent();
p("}");
p();
p("public "+beanClassName+" set" + uname + "(int index, " + type + " value) {");
indent();
p("this.create" + uname + "List().set(index, value);");
p("return this;");
unindent();
p("}");
p();
p("public "+beanClassName+" add" + uname + "(" + type + " value) {");
indent();
p("this.create" + uname + "List().add(value);");
p("return this;");
unindent();
p("}");
p();
p("public "+beanClassName+" addAll" + uname + "(java.lang.Iterable collection) {");
indent();
p("org.apache.activemq.protobuf.MessageBufferSupport.addAll(collection, this.create" + uname + "List());");
p("return this;");
unindent();
p("}");
p();
p("public void clear" + uname + "() {");
indent();
p("copyCheck();");
p("this.f_" + lname + " = null;");
unindent();
p("}");
p();
} else {
p("private " + type + " f_" + lname + " = "+typeDefault+";");
if (primitive) {
p("private boolean b_" + lname + ";");
}
p();
// Create the field accessors
p("public boolean has" + uname + "() {");
indent();
if (primitive) {
p("return bean.b_" + lname + ";");
} else {
p("return bean.f_" + lname + "!=null;");
}
unindent();
p("}");
p();
p("public " + type + " get" + uname + "() {");
indent();
p("return bean.f_" + lname + ";");
unindent();
p("}");
p();
p("public "+beanClassName+" set" + uname + "(" + type + " " + lname + ") {");
indent();
p("copyCheck();");
if (primitive) {
if( auto_clear_optional_fields && field.isOptional() ) {
if( field.isStringType() && !"null".equals(typeDefault)) {
p("this.b_" + lname + " = ("+lname+" != "+typeDefault+");");
} else {
p("this.b_" + lname + " = ("+lname+" != "+typeDefault+");");
}
} else {
p("this.b_" + lname + " = true;");
}
}
p("this.f_" + lname + " = " + lname + ";");
p("return this;");
unindent();
p("}");
p();
p("public void clear" + uname + "() {");
indent();
p("copyCheck();");
if (primitive) {
p("this.b_" + lname + " = false;");
}
p("this.f_" + lname + " = " + typeDefault + ";");
unindent();
p("}");
p();
}
}
private String javaTypeDefault(FieldDescriptor field) {
OptionDescriptor defaultOption = field.getOptions().get("default");
if( defaultOption!=null ) {
if( field.isStringType() ) {
return asJavaString(defaultOption.getValue());
} else if( field.getType() == FieldDescriptor.BYTES_TYPE ) {
return "new "+javaType(field)+"("+asJavaString(defaultOption.getValue())+")";
} else if( field.isInteger32Type() ) {
int v;
if( field.getType() == FieldDescriptor.UINT32_TYPE ) {
v = TextFormat.parseUInt32(defaultOption.getValue());
} else {
v = TextFormat.parseInt32(defaultOption.getValue());
}
return ""+v;
} else if( field.isInteger64Type() ) {
long v;
if( field.getType() == FieldDescriptor.UINT64_TYPE ) {
v = TextFormat.parseUInt64(defaultOption.getValue());
} else {
v = TextFormat.parseInt64(defaultOption.getValue());
}
return ""+v+"l";
} else if( field.getType() == FieldDescriptor.DOUBLE_TYPE ) {
double v = Double.valueOf(defaultOption.getValue());
return ""+v+"d";
} else if( field.getType() == FieldDescriptor.FLOAT_TYPE ) {
float v = Float.valueOf(defaultOption.getValue());
return ""+v+"f";
} else if( field.getType() == FieldDescriptor.BOOL_TYPE ) {
boolean v = Boolean.valueOf(defaultOption.getValue());
return ""+v;
} else if( field.getTypeDescriptor()!=null && field.getTypeDescriptor().isEnum() ) {
return javaType(field)+"."+defaultOption.getValue();
}
return defaultOption.getValue();
} else {
if( field.isNumberType() ) {
return "0";
}
if( field.getType() == FieldDescriptor.BOOL_TYPE ) {
return "false";
}
return "null";
}
}
static final char HEX_TABLE[] = new char[]{ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
private String asJavaString(String value) {
StringBuilder sb = new StringBuilder(value.length()+2);
sb.append("\"");
for (int i = 0; i < value.length(); i++) {
char b = value.charAt(i);
switch (b) {
// Java does not recognize \a or \v, apparently.
case '\b': sb.append("\\b" ); break;
case '\f': sb.append("\\f" ); break;
case '\n': sb.append("\\n" ); break;
case '\r': sb.append("\\r" ); break;
case '\t': sb.append("\\t" ); break;
case '\\': sb.append("\\\\"); break;
case '\'': sb.append("\\\'"); break;
case '"' : sb.append("\\\""); break;
default:
if (b >= 0x20 && b <'Z') {
sb.append((char) b);
} else {
sb.append("\\u");
sb.append(HEX_TABLE[(b >>> 12) & 0x0F] );
sb.append(HEX_TABLE[(b >>> 8) & 0x0F] );
sb.append(HEX_TABLE[(b >>> 4) & 0x0F] );
sb.append(HEX_TABLE[b & 0x0F] );
}
break;
}
}
sb.append("\"");
return sb.toString();
}
private void generateEnum(EnumDescriptor ed) {
String uname = uCamel(ed.getName());
String staticOption = "static ";
if( multipleFiles && ed.getParent()==null ) {
staticOption="";
}
// TODO Auto-generated method stub
p();
p("public "+staticOption+"enum " +uname + " {");
indent();
p();
int counter=0;
for (EnumFieldDescriptor field : ed.getFields().values()) {
boolean last = counter+1 == ed.getFields().size();
p(field.getName()+"(\""+field.getName()+"\", "+field.getValue()+")"+(last?";":","));
counter++;
}
p();
p("private final String name;");
p("private final int value;");
p();
p("private "+uname+"(String name, int value) {");
p(" this.name = name;");
p(" this.value = value;");
p("}");
p();
p("public final int getNumber() {");
p(" return value;");
p("}");
p();
p("public final String toString() {");
p(" return name;");
p("}");
p();
p("public static "+uname+" valueOf(int value) {");
p(" switch (value) {");
// It's possible to define multiple ENUM fields with the same value..
// we only want to put the first one into the switch statement.
HashSet values = new HashSet();
for (EnumFieldDescriptor field : ed.getFields().values()) {
if( !values.contains(field.getValue()) ) {
p(" case "+field.getValue()+":");
p(" return "+field.getName()+";");
values.add(field.getValue());
}
}
p(" default:");
p(" return null;");
p(" }");
p("}");
p();
String createMessage = getOption(ed.getOptions(), "java_create_message", null);
if( "true".equals(createMessage) ) {
p("public interface "+uname+"Creatable {");
indent();
p(""+uname+" to"+uname+"();");
unindent();
p("}");
p();
p("public "+uname+"Creatable createBean() {");
indent();
p("switch (this) {");
indent();
for (EnumFieldDescriptor field : ed.getFields().values()) {
p("case "+field.getName()+":");
String type = field.getAssociatedType().getName();
p(" return new "+javaRelatedType(type, "Bean")+"();");
}
p("default:");
p(" return null;");
unindent();
p("}");
unindent();
p("}");
p();
generateParseDelegate(ed, "parseUnframed", "org.apache.activemq.protobuf.Buffer", "org.apache.activemq.protobuf.InvalidProtocolBufferException");
generateParseDelegate(ed, "parseFramed", "org.apache.activemq.protobuf.Buffer", "org.apache.activemq.protobuf.InvalidProtocolBufferException");
generateParseDelegate(ed, "parseUnframed", "byte[]", "org.apache.activemq.protobuf.InvalidProtocolBufferException");
generateParseDelegate(ed, "parseFramed", "byte[]", "org.apache.activemq.protobuf.InvalidProtocolBufferException");
generateParseDelegate(ed, "parseFramed", "org.apache.activemq.protobuf.CodedInputStream", "org.apache.activemq.protobuf.InvalidProtocolBufferException, java.io.IOException");
generateParseDelegate(ed, "parseFramed", "java.io.InputStream", "org.apache.activemq.protobuf.InvalidProtocolBufferException, java.io.IOException");
}
unindent();
p("}");
p();
}
private void generateParseDelegate(EnumDescriptor descriptor, String methodName, String inputType, String exceptions) {
p("public org.apache.activemq.protobuf.MessageBuffer " + methodName + "(" + inputType + " data) throws " + exceptions + " {");
indent();
p("switch (this) {");
indent();
for (EnumFieldDescriptor field : descriptor.getFields().values()) {
p("case "+field.getName()+":");
String type = constantToUCamelCase(field.getName());
p(" return "+javaRelatedType(type, "Buffer")+"."+methodName+"(data);");
}
p("default:");
p(" return null;");
unindent();
p("}");
unindent();
p("}");
p();
}
private String javaCollectionType(FieldDescriptor field) {
if( field.isInteger32Type() ) {
return "java.lang.Integer";
}
if( field.isInteger64Type() ) {
return "java.lang.Long";
}
if( field.getType() == FieldDescriptor.DOUBLE_TYPE ) {
return "java.lang.Double";
}
if( field.getType() == FieldDescriptor.FLOAT_TYPE ) {
return "java.lang.Float";
}
if( field.getType() == FieldDescriptor.STRING_TYPE ) {
// TODO: support handling string fields as buffers.
// String override = getOption(field.getOptions(), "java_override_type", null);
// if( "AsciiBuffer".equals(override) ) {
// return "org.apache.activemq.protobuf.AsciiBuffer";
// } else if( "UTF8Buffer".equals(override) ) {
// return "org.apache.activemq.protobuf.UTF8Buffer";
// } else if( "Buffer".equals(override) ) {
// return "org.apache.activemq.protobuf.Buffer";
// } else {
return "java.lang.String";
// }
}
if( field.getType() == FieldDescriptor.BYTES_TYPE ) {
String override = getOption(field.getOptions(), "java_override_type", null);
if( "AsciiBuffer".equals(override) ) {
return "org.apache.activemq.protobuf.AsciiBuffer";
} else if( "UTF8Buffer".equals(override) ) {
return "org.apache.activemq.protobuf.UTF8Buffer";
} else {
return "org.apache.activemq.protobuf.Buffer";
}
}
if( field.getType() == FieldDescriptor.BOOL_TYPE ) {
return "java.lang.Boolean";
}
TypeDescriptor descriptor = field.getTypeDescriptor();
return javaType(descriptor);
}
private String javaType(FieldDescriptor field) {
if( field.isInteger32Type() ) {
return "int";
}
if( field.isInteger64Type() ) {
return "long";
}
if( field.getType() == FieldDescriptor.DOUBLE_TYPE ) {
return "double";
}
if( field.getType() == FieldDescriptor.FLOAT_TYPE ) {
return "float";
}
if( field.getType() == FieldDescriptor.STRING_TYPE ) {
// TODO: support handling string fields as buffers.
// String override = getOption(field.getOptions(), "java_override_type", null);
// if( "AsciiBuffer".equals(override) ) {
// return "org.apache.activemq.protobuf.AsciiBuffer";
// } else if( "UTF8Buffer".equals(override) ) {
// return "org.apache.activemq.protobuf.UTF8Buffer";
// } else if( "Buffer".equals(override) ) {
// return "org.apache.activemq.protobuf.Buffer";
// } else {
return "java.lang.String";
// }
}
if( field.getType() == FieldDescriptor.BYTES_TYPE ) {
String override = getOption(field.getOptions(), "java_override_type", null);
if( "AsciiBuffer".equals(override) ) {
return "org.apache.activemq.protobuf.AsciiBuffer";
} else if( "UTF8Buffer".equals(override) ) {
return "org.apache.activemq.protobuf.UTF8Buffer";
} else {
return "org.apache.activemq.protobuf.Buffer";
}
}
if( field.getType() == FieldDescriptor.BOOL_TYPE ) {
return "boolean";
}
TypeDescriptor descriptor = field.getTypeDescriptor();
return javaType(descriptor);
}
private String javaType(TypeDescriptor descriptor) {
ProtoDescriptor p = descriptor.getProtoDescriptor();
if( p != proto ) {
// Try to keep it short..
String othePackage = javaPackage(p);
if( equals(othePackage,javaPackage(proto) ) ) {
return javaClassName(p)+"."+descriptor.getQName();
}
// Use the fully qualified class name.
return othePackage+"."+javaClassName(p)+"."+descriptor.getQName();
}
return descriptor.getQName();
}
private String javaRelatedType(String type, String suffix) {
int ix = type.lastIndexOf(".");
if (ix == -1) {
// type = Foo, result = Foo.FooBean
return type+"."+type+suffix;
}
// type = Foo.Bar, result = Foo.Bar.BarBean
return type+"."+type.substring(ix+1)+suffix;
}
private boolean equals(String o1, String o2) {
if( o1==o2 )
return true;
if( o1==null || o2==null )
return false;
return o1.equals(o2);
}
private String javaClassName(ProtoDescriptor proto) {
return getOption(proto.getOptions(), "java_outer_classname", uCamel(removeFileExtension(proto.getName())));
}
private boolean isMultipleFilesEnabled(ProtoDescriptor proto) {
return "true".equals(getOption(proto.getOptions(), "java_multiple_files", "false"));
}
private String javaPackage(ProtoDescriptor proto) {
String name = proto.getPackageName();
if( name!=null ) {
name = name.replace('-', '.');
name = name.replace('/', '.');
}
return getOption(proto.getOptions(), "java_package", name);
}
// ----------------------------------------------------------------
// Internal Helper methods
// ----------------------------------------------------------------
private void indent() {
indent++;
}
private void unindent() {
indent--;
}
private void p(String line) {
// Indent...
for (int i = 0; i < indent; i++) {
w.print(" ");
}
// Then print.
w.println(line);
}
private void p() {
w.println();
}
private String getOption(Map options, String optionName, String defaultValue) {
OptionDescriptor optionDescriptor = options.get(optionName);
if (optionDescriptor == null) {
return defaultValue;
}
return optionDescriptor.getValue();
}
static private String removeFileExtension(String name) {
return name.replaceAll("\\..*", "");
}
static private String uCamel(String name) {
boolean upNext=true;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < name.length(); i++) {
char c = name.charAt(i);
if( Character.isJavaIdentifierPart(c) && Character.isLetterOrDigit(c)) {
if( upNext ) {
c = Character.toUpperCase(c);
upNext=false;
}
sb.append(c);
} else {
upNext=true;
}
}
return sb.toString();
}
static private String lCamel(String name) {
if( name == null || name.length()<1 )
return name;
String uCamel = uCamel(name);
return uCamel.substring(0,1).toLowerCase()+uCamel.substring(1);
}
private String constantToUCamelCase(String name) {
boolean upNext=true;
StringBuilder sb = new StringBuilder();
for (int i = 0; i < name.length(); i++) {
char c = name.charAt(i);
if( Character.isJavaIdentifierPart(c) && Character.isLetterOrDigit(c)) {
if( upNext ) {
c = Character.toUpperCase(c);
upNext=false;
} else {
c = Character.toLowerCase(c);
}
sb.append(c);
} else {
upNext=true;
}
}
return sb.toString();
}
private String constantCase(String name) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < name.length(); i++) {
char c = name.charAt(i);
if( i!=0 && Character.isUpperCase(c) ) {
sb.append("_");
}
sb.append(Character.toUpperCase(c));
}
return sb.toString();
}
public File getOut() {
return out;
}
public void setOut(File outputDirectory) {
this.out = outputDirectory;
}
public File[] getPath() {
return path;
}
public void setPath(File[] path) {
this.path = path;
}
}
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