/**
* 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.fusesource.hawtbuf.proto.compiler;
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.fusesource.hawtbuf.proto.compiler.parser.ParseException;
import org.fusesource.hawtbuf.proto.compiler.parser.ProtoParser;
import static org.fusesource.hawtbuf.proto.WireFormat.*;
public class JavaGenerator {
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<String> errors = new ArrayList<String>();
private boolean multipleFiles;
private boolean deferredDecode;
private boolean auto_clear_optional_fields;
public static void main(String[] args) {
JavaGenerator generator = new JavaGenerator();
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<String,ProtoDescriptor> children = new LinkedHashMap<String,ProtoDescriptor>();
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());
p();
String staticOption = "static ";
if( multipleFiles && m.getParent()==null ) {
staticOption="";
}
String javaImplements = getOption(m.getOptions(), "java_implments", null);
String implementsExpression = "";
if( javaImplements!=null ) {
implementsExpression = "implements "+javaImplements+" ";
}
String baseClass = "org.fusesource.hawtbuf.proto.BaseMessage";
if( deferredDecode ) {
baseClass = "org.fusesource.hawtbuf.proto.DeferredDecodeMessage";
}
if( m.getBaseType()!=null ) {
baseClass = javaType(m.getBaseType())+"Base";
}
p(staticOption+"public final class " + className + " extends "+className+"Base<"+className+"> "+implementsExpression+"{");
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( isInBaseClass(m, field) ) {
continue;
}
if( field.isGroup() ) {
generateMessageBean(field.getGroup());
}
}
generateMethodAssertInitialized(m, className);
generateMethodClear(m);
p("public "+className+" clone() {");
p(" return new "+className+"().mergeFrom(this);");
p("}");
p();
generateMethodMergeFromBean(m, className);
generateMethodSerializedSize(m);
generateMethodMergeFromStream(m, className);
generateMethodWriteTo(m);
generateMethodParseFrom(m, className);
generateMethodToString(m);
generateMethodVisitor(m);
generateMethodType(m, className);
generateMethodEquals(m, className);
unindent();
p("}");
p();
p(staticOption+"abstract class " + className + "Base<T> extends "+baseClass+"<T> {");
p();
indent();
// Generate the field accessors..
for (FieldDescriptor field : m.getFields().values()) {
if( isInBaseClass(m, field) ) {
continue;
}
generateFieldAccessor(field);
}
unindent();
p("}");
p();
}
private boolean isInBaseClass(MessageDescriptor m, FieldDescriptor field) {
if( m.getBaseType() ==null )
return false;
return m.getBaseType().getFields().containsKey(field.getName());
}
/**
* 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 className) {
String postMergeProcessing = ".checktInitialized()";
if( deferredDecode ) {
postMergeProcessing="";
}
p("public static "+className+" parseUnframed(org.fusesource.hawtbuf.proto.CodedInputStream data) throws org.fusesource.hawtbuf.proto.InvalidProtocolBufferException, java.io.IOException {");
indent();
p("return new "+className+"().mergeUnframed(data)"+postMergeProcessing+";");
unindent();
p("}");
p();
p("public static "+className+" parseUnframed(org.fusesource.hawtbuf.Buffer data) throws org.fusesource.hawtbuf.proto.InvalidProtocolBufferException {");
indent();
p("return new "+className+"().mergeUnframed(data)"+postMergeProcessing+";");
unindent();
p("}");
p();
p("public static "+className+" parseUnframed(byte[] data) throws org.fusesource.hawtbuf.proto.InvalidProtocolBufferException {");
indent();
p("return new "+className+"().mergeUnframed(data)"+postMergeProcessing+";");
unindent();
p("}");
p();
p("public static "+className+" parseUnframed(java.io.InputStream data) throws org.fusesource.hawtbuf.proto.InvalidProtocolBufferException, java.io.IOException {");
indent();
p("return new "+className+"().mergeUnframed(data)"+postMergeProcessing+";");
unindent();
p("}");
p();
p("public static "+className+" parseFramed(org.fusesource.hawtbuf.proto.CodedInputStream data) throws org.fusesource.hawtbuf.proto.InvalidProtocolBufferException, java.io.IOException {");
indent();
p("return new "+className+"().mergeFramed(data)"+postMergeProcessing+";");
unindent();
p("}");
p();
p("public static "+className+" parseFramed(org.fusesource.hawtbuf.Buffer data) throws org.fusesource.hawtbuf.proto.InvalidProtocolBufferException {");
indent();
p("return new "+className+"().mergeFramed(data)"+postMergeProcessing+";");
unindent();
p("}");
p();
p("public static "+className+" parseFramed(byte[] data) throws org.fusesource.hawtbuf.proto.InvalidProtocolBufferException {");
indent();
p("return new "+className+"().mergeFramed(data)"+postMergeProcessing+";");
unindent();
p("}");
p();
p("public static "+className+" parseFramed(java.io.InputStream data) throws org.fusesource.hawtbuf.proto.InvalidProtocolBufferException, java.io.IOException {");
indent();
p("return new "+className+"().mergeFramed(data)"+postMergeProcessing+";");
unindent();
p("}");
p();
}
private void generateMethodEquals(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();
if( deferredDecode ) {
p("return toUnframedBuffer().equals(obj.toUnframedBuffer());");
} else {
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();
if( deferredDecode ) {
p("return "+hc+" ^ toUnframedBuffer().hashCode();");
} else {
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("");
}
/**
* @param m
*/
private void generateMethodSerializedSize(MessageDescriptor m) {
p("public int serializedSizeUnframed() {");
indent();
if( deferredDecode ) {
p("if (encodedForm != null) {");
indent();
p("return encodedForm.length;");
unindent();
p("}");
}
p("if (memoizedSerializedSize != -1)");
p(" return memoizedSerializedSize;");
p();
p("int size = 0;");
for (FieldDescriptor field : m.getFields().values()) {
String uname = uCamel(field.getName());
String getter="get"+uname+"()";
String type = javaType(field);
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.fusesource.hawtbuf.proto.CodedOutputStream.computeStringSize("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.BYTES_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeBytesSize("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.BOOL_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeBoolSize("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.DOUBLE_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeDoubleSize("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.FLOAT_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeFloatSize("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.INT32_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeInt32Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.INT64_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeInt64Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SINT32_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeSInt32Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SINT64_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeSInt64Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.UINT32_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeUInt32Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.UINT64_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeUInt64Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.FIXED32_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeFixed32Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.FIXED64_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeFixed64Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SFIXED32_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeSFixed32Size("+field.getTag()+", "+getter+");");
} else if( field.getType()==FieldDescriptor.SFIXED64_TYPE ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeSFixed64Size("+field.getTag()+", "+getter+");");
} else if( field.getTypeDescriptor().isEnum() ) {
p("size += org.fusesource.hawtbuf.proto.CodedOutputStream.computeEnumSize("+field.getTag()+", "+getter+".getNumber());");
} else if ( field.getGroup()!=null ) {
p("size += computeGroupSize("+field.getTag()+", "+getter+");");
} else {
p("size += computeMessageSize("+field.getTag()+", "+getter+");");
}
if( field.getRule() == FieldDescriptor.REPEATED_RULE ) {
unindent();
p("}");
}
//TODO: finish this up.
unindent();
p("}");
}
// TODO: handle unknown fields
// size += getUnknownFields().getSerializedSize();");
p("memoizedSerializedSize = size;");
p("return size;");
unindent();
p("}");
p();
}
/**
* @param m
*/
private void generateMethodWriteTo(MessageDescriptor m) {
p("public void writeUnframed(org.fusesource.hawtbuf.proto.CodedOutputStream output) throws java.io.IOException {");
indent();
if( deferredDecode ) {
p("if (encodedForm == null) {");
indent();
p("int size = serializedSizeUnframed();");
p("encodedForm = output.getNextBuffer(size);");
p("org.fusesource.hawtbuf.proto.CodedOutputStream original=null;");
p("if( encodedForm == null ) {");
indent();
p("encodedForm = new org.fusesource.hawtbuf.Buffer(new byte[size]);");
p("original = output;");
p("output = new org.fusesource.hawtbuf.proto.CodedOutputStream(encodedForm);");
unindent();
p("}");
}
for (FieldDescriptor field : m.getFields().values()) {
String uname = uCamel(field.getName());
String getter="get"+uname+"()";
String type = javaType(field);
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("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 ) {
p("writeGroup(output, "+field.getTag()+", "+getter+");");
} else {
p("writeMessage(output, "+field.getTag()+", "+getter+");");
}
if( field.getRule() == FieldDescriptor.REPEATED_RULE ) {
unindent();
p("}");
}
unindent();
p("}");
}
if( deferredDecode ) {
p("if( original !=null ) {");
indent();
p("output.checkNoSpaceLeft();");
p("output = original;");
p("output.writeRawBytes(encodedForm);");
unindent();
p("}");
unindent();
p("} else {");
indent();
p("output.writeRawBytes(encodedForm);");
unindent();
p("}");
}
unindent();
p("}");
p();
}
/**
* @param m
* @param className
*/
private void generateMethodMergeFromStream(MessageDescriptor m, String className) {
p("public "+className+" mergeUnframed(org.fusesource.hawtbuf.proto.CodedInputStream input) throws java.io.IOException {");
indent();
{
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 = "get" + 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();
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) {
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 + "(new " + type
+ "().mergeFramed(input));");
} else {
p("if (has" + uname + "()) {");
indent();
p("get" + uname + "().mergeFramed(input);");
unindent();
p("} else {");
indent();
p(setter + "(new " + type
+ "().mergeFramed(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+" mergeFrom("+className+" other) {");
indent();
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.clone());");
unindent();
p("}");
} else {
p("if (has"+uname+"()) {");
indent();
p("get"+uname+"().mergeFrom(other.get"+uname+"());");
unindent();
p("} else {");
indent();
p("set"+uname+"(other.get"+uname+"().clone());");
unindent();
p("}");
}
}
unindent();
p("}");
}
p("return this;");
unindent();
p("}");
p();
}
/**
* @param m
*/
private void generateMethodClear(MessageDescriptor m) {
p("public void clear() {");
indent();
p("super.clear();");
for (FieldDescriptor field : m.getFields().values()) {
String uname = uCamel(field.getName());
p("clear" + uname + "();");
}
unindent();
p("}");
p();
}
private void generateMethodAssertInitialized(MessageDescriptor m, String className) {
p("public java.util.ArrayList<String> missingFields() {");
indent();
p("java.util.ArrayList<String> 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.fusesource.hawtbuf.proto.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.fusesource.hawtbuf.proto.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();
if( deferredDecode ) {
p("load();");
}
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 generateFieldAccessor(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();
if( deferredDecode ) {
p("load();");
}
p("return this.f_" + lname + "!=null && !this.f_" + lname + ".isEmpty();");
unindent();
p("}");
p();
p("public java.util.List<" + type + "> get" + uname + "List() {");
indent();
if( deferredDecode ) {
p("load();");
}
p("if( this.f_" + lname + " == null ) {");
indent();
p("this.f_" + lname + " = new java.util.ArrayList<" + type + ">();");
unindent();
p("}");
p("return this.f_" + lname + ";");
unindent();
p("}");
p();
p("public T set" + uname + "List(java.util.List<" + type + "> " + lname + ") {");
indent();
p("loadAndClear();");
p("this.f_" + lname + " = " + lname + ";");
p("return (T)this;");
unindent();
p("}");
p();
p("public int get" + uname + "Count() {");
indent();
if( deferredDecode ) {
p("load();");
}
p("if( this.f_" + lname + " == null ) {");
indent();
p("return 0;");
unindent();
p("}");
p("return this.f_" + lname + ".size();");
unindent();
p("}");
p();
p("public " + type + " get" + uname + "(int index) {");
indent();
if( deferredDecode ) {
p("load();");
}
p("if( this.f_" + lname + " == null ) {");
indent();
p("return null;");
unindent();
p("}");
p("return this.f_" + lname + ".get(index);");
unindent();
p("}");
p();
p("public T set" + uname + "(int index, " + type + " value) {");
indent();
p("loadAndClear();");
p("get" + uname + "List().set(index, value);");
p("return (T)this;");
unindent();
p("}");
p();
p("public T add" + uname + "(" + type + " value) {");
indent();
p("loadAndClear();");
p("get" + uname + "List().add(value);");
p("return (T)this;");
unindent();
p("}");
p();
p("public T addAll" + uname + "(java.lang.Iterable<? extends " + type + "> collection) {");
indent();
p("loadAndClear();");
p("super.addAll(collection, get" + uname + "List());");
p("return (T)this;");
unindent();
p("}");
p();
p("public void clear" + uname + "() {");
indent();
p("loadAndClear();");
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( deferredDecode ) {
p("load();");
}
if (primitive) {
p("return this.b_" + lname + ";");
} else {
p("return this.f_" + lname + "!=null;");
}
unindent();
p("}");
p();
p("public " + type + " get" + uname + "() {");
indent();
if( deferredDecode ) {
p("load();");
}
if( field.getTypeDescriptor()!=null && !field.getTypeDescriptor().isEnum()) {
p("if( this.f_" + lname + " == null ) {");
indent();
p("this.f_" + lname + " = new " + type + "();");
unindent();
p("}");
}
p("return this.f_" + lname + ";");
unindent();
p("}");
p();
p("public T set" + uname + "(" + type + " " + lname + ") {");
indent();
p("loadAndClear();");
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 (T)this;");
unindent();
p("}");
p();
p("public void clear" + uname + "() {");
indent();
p("loadAndClear();");
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 org.fusesource.hawtbuf.Buffer(org.fusesource.hawtbuf.UTF8Buffer.encode("+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<Integer> values = new HashSet<Integer>();
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 org.fusesource.hawtbuf.proto.Message createMessage() {");
indent();
p("switch (this) {");
indent();
for (EnumFieldDescriptor field : ed.getFields().values()) {
p("case "+field.getName()+":");
String type = constantToUCamelCase(field.getName());
p(" return new "+type+"();");
}
p("default:");
p(" return null;");
unindent();
p("}");
unindent();
p("}");
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 ) {
return "java.lang.String";
}
if( field.getType() == FieldDescriptor.BYTES_TYPE ) {
return "org.fusesource.hawtbuf.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 ) {
return "java.lang.String";
}
if( field.getType() == FieldDescriptor.BYTES_TYPE ) {
return "org.fusesource.hawtbuf.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 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<String, OptionDescriptor> 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;
}
}