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org.bimserver.tools.generators.ProtocolBuffersGenerator Maven / Gradle / Ivy
package org.bimserver.tools.generators;
/******************************************************************************
* Copyright (C) 2009-2016 BIMserver.org
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see {@literal, String> generatedClasses = new HashMap, String>();
private final Map generatedMessages = new HashMap();
public void generate(Class serviceInterfaceClass, File protoFile, File descFile, boolean createBaseMessages, SService service, List imports) {
generateProtoFile(serviceInterfaceClass, protoFile, createBaseMessages, service, imports);
generateProtocolBuffersObjects(protoFile, descFile, false);
}
private void generateProtocolBuffersObjects(File protoFile, File protoDestFile, boolean javaOut) {
File destDir = new File("../GeneratedProtocolBuffersClient/generated");
File protoDir = new File("../BimServerClientLib/src/org/bimserver/client/protocolbuffers/");
File execFile = null;
String execFileName = "protoc";
String path = System.getenv("PATH");
String[] folders = path.split(File.pathSeparator);
for (String folder : folders) {
File file = new File(folder, execFileName);
if (file.isFile()) {
execFile = file;
break;
}
}
if (execFile == null) {
execFile = new File("../BimServer/deploy/protoc.exe");
}
try {
ProcessBuilder processBuilder = null;
if (javaOut) {
processBuilder = new ProcessBuilder(execFile.getAbsolutePath(), "-I=" + protoDir.getAbsolutePath(), "--java_out=" + destDir.getAbsolutePath(),
"--descriptor_set_out=" + protoDestFile.getAbsolutePath(), protoFile.getAbsolutePath());
} else {
processBuilder = new ProcessBuilder(execFile.getAbsolutePath(), "-I=" + protoDir.getAbsolutePath(), "--descriptor_set_out=" + protoDestFile.getAbsolutePath(),
protoFile.getAbsolutePath());
}
final Process exec = processBuilder.start();
new Thread(new Runnable() {
@Override
public void run() {
InputStream inputStream = exec.getInputStream();
byte[] buffer = new byte[1024];
int red;
try {
red = inputStream.read(buffer);
while (red != -1) {
System.out.print(new String(buffer, 0, red));
red = inputStream.read(buffer);
}
} catch (IOException e) {
LOGGER.error("", e);
}
}
}, "Protocol Buffers Generator").start();
new Thread(new Runnable() {
@Override
public void run() {
InputStream inputStream = exec.getErrorStream();
byte[] buffer = new byte[1024];
int red;
try {
red = inputStream.read(buffer);
while (red != -1) {
System.err.print(new String(buffer, 0, red));
red = inputStream.read(buffer);
}
} catch (IOException e) {
LOGGER.error("", e);
}
}
}, "Protocol Buffers Generator").start();
exec.waitFor();
} catch (IOException e) {
LOGGER.error("", e);
} catch (InterruptedException e) {
LOGGER.error("", e);
}
}
public void generateServiceInterfaceImplementation(String name, File file, SService sService) {
try {
PrintWriter out = new PrintWriter(file);
out.println("package org.bimserver.pb;\n");
out.println(Licenser.getCommentedLicenseText(new File("license.txt")));
out.println("import java.util.*;");
out.println("import com.google.protobuf.*;");
out.println("import org.bimserver.utils.*;");
out.println("import org.bimserver.pb.ProtocolBuffersService.*;");
out.println("import com.google.protobuf.BlockingRpcChannel;");
out.println("import org.bimserver.pb.ProtocolBuffersService.ServiceInterface.BlockingInterface;");
out.println("import com.googlecode.protobuf.socketrpc.SocketRpcController;");
out.println("import com.googlecode.protobuf.socketrpc.RpcChannels;");
out.println("import com.googlecode.protobuf.socketrpc.SocketRpcConnectionFactories;");
out.println("import javax.mail.util.ByteArrayDataSource;");
out.println("import javax.activation.DataHandler;");
out.println();
out.println("@SuppressWarnings(\"unused\")");
out.println("public class " + name + " implements org.bimserver.shared.ServiceInterface {\n");
out.println("\tprivate BlockingInterface service;\n");
out.println("\tprivate SocketRpcController rpcController;\n");
out.println("\tpublic ProtocolBuffersServiceInterfaceImplementation(String address, int port) {");
out.println("\t\tBlockingRpcChannel rpcChannel = RpcChannels.newBlockingRpcChannel(SocketRpcConnectionFactories.createRpcConnectionFactory(address, port));");
out.println("\t\trpcController = new SocketRpcController();");
out.println("\t\tservice = ServiceInterface.newBlockingStub(rpcChannel);");
out.println("\t}\n");
for (SMethod sMethod : sService.getMethods()) {
String fullResultType = "void";
if (sMethod.returnsVoid()) {
out.print("\tpublic void " + sMethod.getName() + "(");
} else {
fullResultType = sMethod.getReturnType().getName();
if (sMethod.isAggregateReturnType()) {
fullResultType = sMethod.getReturnType().getName() + "<" + sMethod.getGenericReturnType().getName() + ">";
}
out.print("\tpublic " + fullResultType + " " + sMethod.getName() + "(");
}
for (SParameter parameter : sMethod.getParameters()) {
if (parameter.isAggregate()) {
out.print(parameter.getType().getName() + "<" + parameter.getGenericType().getName() + "> " + parameter.getName() + (parameter.isLast() ? "" : ", "));
} else {
out.print(parameter.getType().getName() + " " + parameter.getName() + (parameter.isLast() ? "" : ", "));
}
}
out.println(") {");
out.println("\t\ttry {");
String requestClassName = StringUtils.firstUpperCase(sMethod.getName()) + "Request";
String responseClassName = StringUtils.firstUpperCase(sMethod.getName()) + "Response";
out.println("\t\t\t" + requestClassName + ".Builder requestBuilder = " + requestClassName + ".newBuilder();");
for (SParameter parameter : sMethod.getParameters()) {
if (parameter.isAggregate()) {
out.println("\t\t\tfor (" + parameter.getGenericType() + " val : " + parameter.getName() + ") {");
if (parameter.getType().isPrimitive() || parameter.getType().getInstanceClass() == String.class) {
out.println("\t\t\t\t" + parameter.getGenericType().getInstanceClass().getSimpleName() + " v = val;");
} else {
out.println("\t\t\t\tProtocolBuffersService." + parameter.getGenericType().getInstanceClass().getSimpleName() + " v = null;");
}
out.println("\t\t\t\trequestBuilder.add" + StringUtils.firstUpperCase(parameter.getName()) + "(v);");
out.println("\t\t\t}");
} else if (parameter.getType().getInstanceClass().isAssignableFrom(DataHandler.class)) {
out.println("\t\t\tByteString bs = ByteString.copyFrom(BinUtils.readInputStream(" + parameter.getName() + ".getInputStream()));");
out.println("\t\t\trequestBuilder.set" + StringUtils.firstUpperCase(parameter.getName()) + "(bs);");
} else if (parameter.getType().getInstanceClass().isPrimitive()) {
out.println("\t\t\trequestBuilder.set" + StringUtils.firstUpperCase(parameter.getName()) + "(" + parameter.getName() + ");");
} else if (parameter.getType().getInstanceClass().isEnum()) {
out.println("\t\t\trequestBuilder.set" + StringUtils.firstUpperCase(parameter.getName()) + "(ProtocolBuffersService."
+ parameter.getType().getInstanceClass().getSimpleName() + ".values()[" + parameter.getName() + ".ordinal()]);");
} else if (parameter.getType().getInstanceClass().isPrimitive() || parameter.getType().getInstanceClass() == String.class) {
out.println("\t\t\trequestBuilder.set" + StringUtils.firstUpperCase(parameter.getName()) + "(" + parameter.getName() + ");");
} else {
out.println("\t\t\tProtocolBuffersService." + parameter.getType().getInstanceClass().getSimpleName() + ".Builder newVal = "
+ parameter.getType().getInstanceClass().getSimpleName() + ".newBuilder();");
genServiceInterfaceToProtocolBuffers(out, parameter.getName(), "newVal", parameter.getType());
out.println("\t\t\trequestBuilder.set" + StringUtils.firstUpperCase(parameter.getName()) + "(newVal.build());");
}
}
out.println("\t\t\t" + requestClassName + " request = requestBuilder.build();");
if (sMethod.returnsVoid()) {
out.println("\t\t\tservice." + sMethod.getName() + "(rpcController, request);");
} else {
out.println("\t\t\t" + responseClassName + " response = service." + sMethod.getName() + "(rpcController, request);");
if (sMethod.isListReturnType()) {
out.println("\t\t\t" + fullResultType + " realResult = new ArrayList<" + sMethod.getGenericReturnType().getName() + ">();");
String fullTypeName = sMethod.getGenericReturnType().getName();
if (sMethod.getGenericReturnType().isPrimitive() || sMethod.getGenericReturnType().getInstanceClass() == String.class) {
} else {
fullTypeName = "ProtocolBuffersService." + sMethod.getGenericReturnType().getName();
}
out.println("\t\t\tList<" + fullTypeName + "> originalList = response.getValueList();");
out.println("\t\t\tfor (" + fullTypeName + " val : originalList) {");
if (sMethod.getGenericReturnType().getInstanceClass() == String.class) {
out.println("\t\t\t\trealResult.add(val);");
} else if (sMethod.getGenericReturnType().isEnum()) {
out.println("\t\t\t\trealResult.add(" + sMethod.getGenericReturnType().getName() + ".values()[val.ordinal()]);");
} else {
out.println("\t\t\t\t" + sMethod.getGenericReturnType().getName() + " v = " + genInitializerCode(sMethod.getGenericReturnType().getInstanceClass())
+ ";");
genProtocolBuffersToServiceInterface(out, "val", "v", sMethod.getGenericReturnType(), sMethod);
out.println("\t\t\t\trealResult.add(v);");
}
out.println("\t\t\t}");
out.println("\t\treturn realResult;");
} else if (sMethod.getGenericReturnType().isSet()) {
out.println("\t\t\t" + fullResultType + " realResult = new HashSet<" + sMethod.getGenericReturnType().getName() + ">();");
String fullTypeName = "";
if (sMethod.getGenericReturnType().isPrimitive() || sMethod.getGenericReturnType().isString()) {
} else {
fullTypeName = "ProtocolBuffersService." + sMethod.getGenericReturnType().getInstanceClass().getSimpleName();
}
out.println("\t\t\tList<" + fullTypeName + "> originalList = response.getValueList();");
out.println("\t\t\tfor (" + fullTypeName + " val : originalList) {");
if (sMethod.getGenericReturnType().isString()) {
out.println("\t\t\t\trealResult.add(val);");
} else if (sMethod.getGenericReturnType().isEnum()) {
out.println("\t\t\t\trealResult.add(" + sMethod.getGenericReturnType().getName() + ".values()[val.ordinal()]);");
} else {
out.println("\t\t\t\t" + sMethod.getGenericReturnType().getName() + " v = " + genInitializerCode(sMethod.getGenericReturnType().getInstanceClass())
+ ";");
genProtocolBuffersToServiceInterface(out, "val", "v", sMethod.getGenericReturnType(), sMethod);
out.println("\t\t\t\trealResult.add(v);");
}
out.println("\t\t\t}");
out.println("\t\treturn realResult;");
} else if (sMethod.getReturnType().isPrimitive() || sMethod.getReturnType().isString()) {
out.println("\t\t\treturn response.getValue();");
} else if (sMethod.getReturnType().isDate()) {
out.println("\t\t\treturn new java.util.Date(response.getValue());");
} else if (sMethod.getGenericReturnType().isEnum()) {
out.println("\t\t\treturn null;");
} else {
out.println("\t\t\t" + sMethod.getGenericReturnType().getName() + " realResult = new " + sMethod.getReturnType().getName() + "();");
out.println("\t\t\t" + "ProtocolBuffersService." + sMethod.getReturnType().getName() + " val = response.getValue();");
genProtocolBuffersToServiceInterface(out, "val", "realResult", sMethod.getReturnType(), sMethod);
out.println("\t\t\treturn realResult;");
}
}
out.println("\t\t} catch (Exception e) {}");
if (!sMethod.returnsVoid()) {
out.println("\t\treturn " + getDefaultLiteralCode(sMethod.getGenericReturnType().getInstanceClass()) + ";");
}
out.println("\t}\n");
}
out.println('}');
out.close();
} catch (FileNotFoundException e) {
LOGGER.error("", e);
}
}
private void genProtocolBuffersToServiceInterface(PrintWriter out, String sourceName, String targetName, SClass sType, SMethod method) {
for (SField field : sType.getAllFields()) {
if (sType.getInstanceClass().isAssignableFrom(List.class)) {
} else if (sType.isDate()) {
out.println("\t\t\t\t" + targetName + ".set" + field.getName() + "(new Date(" + sourceName + "." + method.getName() + "()));");
} else if (sType.isClass()) {
out.println("\t\t\t\t" + targetName + ".set" + field.getName() + "(Class.forName(" + sourceName + "." + method.getName() + "()));");
} else if (sType.isDataHandler()) {
out.println("\t\t\t\t" + targetName + ".setFile(new DataHandler(new ByteArrayDataSource(" + sourceName + ".getFile().toByteArray(), \"\")));");
} else if (sType.isEnum()) {
out.println("\t\t\t\t" + targetName + ".set" + field.getName() + "(" + method.getReturnType().getName().replace("$", ".") + ".values()[" + sourceName + "."
+ method.getName() + "().ordinal()]);");
} else {
out.println("\t\t\t\t" + targetName + ".set" + field.getName() + "(" + sourceName + "." + method.getName() + "());");
}
}
}
private void genServiceInterfaceToProtocolBuffers(PrintWriter out, String sourceName, String targetName, SClass parameterType) {
for (SField field : parameterType.getAllFields()) {
SClass fieldType = field.getType();
SClass fieldClass = fieldType;
if (fieldClass.isList()) {
out.println("\t\t\tfor (" + fieldType.getName() + " o : " + sourceName + "." + field.getName() + "()) {");
out.println("\t\t\t\t" + targetName + ".add" + field.getName() + "(o);");
out.println("\t\t\t}");
} else if (fieldClass.isDate()) {
out.println("\t\t\t" + targetName + ".set" + field.getName() + "(" + sourceName + "." + field.getName() + "().getTime());");
} else if (fieldType.getInstanceClass() == byte[].class) {
out.println("\t\t\t" + targetName + ".set" + field.getName() + "(ByteString.copyFrom(" + sourceName + "." + field.getName() + "()));");
} else if (fieldClass.isEnum()) {
out.println("\t\t\t" + targetName + ".set" + field.getName() + "(" + fieldType.getInstanceClass().getSimpleName() + ".values()[" + sourceName + "."
+ field.getName() + "().ordinal()]);");
} else {
out.println("\t\t\t" + targetName + ".set" + field.getName() + "(" + sourceName + "." + field.getName() + "());");
}
}
}
private String genInitializerCode(Class type) {
if (type.isPrimitive()) {
return getDefaultLiteralCode(type);
} else if (type == String.class) {
return "\"\"";
} else if (type.isEnum()) {
return "null";
} else {
return "new " + type.getName() + "()";
}
}
private String getDefaultLiteralCode(Class type) {
if (type == Boolean.class || type == boolean.class) {
return "false";
} else if (type == Integer.class || type == int.class) {
return "0";
} else if (type == Long.class || type == long.class) {
return "0L";
} else if (type.isEnum()) {
return "null";
} else {
return "null";
}
}
private void generateProtoFile(Class serviceInterfaceClass, File protoFile, boolean createBaseMessages, SService service, List imports) {
PrintWriter out = null;
try {
out = new PrintWriter(protoFile);
out.println("package org.bimserver.pb;\n");
out.println(Licenser.getCommentedLicenseText(new File("license.txt")));
for (String importFile : imports) {
out.println("import \"" + importFile + ".proto\";");
}
out.println("option java_generic_services = true;\n");
out.println("option java_outer_classname = \"" + service.getSimpleName() + "Impl\";\n");
out.println("option optimize_for = SPEED;\n"); // or CODE_SIZE
StringBuilder serviceBuilder = new StringBuilder();
StringBuilder messageBuilder = new StringBuilder();
serviceBuilder.append("service " + service.getSimpleName() + " {\n");
if (createBaseMessages) {
createVoidResponseMessage(messageBuilder);
generateVoidMessage(messageBuilder);
}
for (SMethod method : service.getMethods()) {
String inputObjectName = StringUtils.firstUpperCase(method.getName()) + "Request";
String outputObjectName = StringUtils.firstUpperCase(method.getName()) + "Response";
createRequestMessage(messageBuilder, method, inputObjectName);
if (method.returnsVoid()) {
outputObjectName = "VoidResponse";
} else {
createResponseMessage(messageBuilder, method, outputObjectName);
}
serviceBuilder.append("\trpc " + method.getName() + " (" + inputObjectName + ") returns (" + outputObjectName + ");\n\n");
}
serviceBuilder.append("}\n\n");
out.print(serviceBuilder.toString());
out.print(messageBuilder.toString());
} catch (FileNotFoundException e) {
LOGGER.error("", e);
} finally {
if (out != null) {
out.close();
}
}
}
private void generateVoidMessage(StringBuilder builder) {
builder.append("message Void {\n}");
}
private void createVoidResponseMessage(StringBuilder builder) {
String messageName = "VoidResponse";
StringBuilder messageBuilder = new StringBuilder();
messageBuilder.append("message " + messageName + " {\n");
messageBuilder.append("\toptional string errorMessage = 1;\n");
messageBuilder.append("}\n\n");
builder.append(messageBuilder);
}
private void createResponseMessage(StringBuilder builder, SMethod method, String messageName) {
if (generatedMessages.containsKey(messageName)) {
return;
}
generatedMessages.put(messageName, messageName);
StringBuilder messageBuilder = new StringBuilder();
messageBuilder.append("message " + messageName + " {\n");
messageBuilder.append("\toptional string errorMessage = 1;\n");
messageBuilder.append('\t');
if (method.isAggregateReturnType()) {
messageBuilder.append("repeated ");
} else {
messageBuilder.append("optional ");
}
messageBuilder.append(createMessage(builder, method.isAggregateReturnType() ? method.getGenericReturnType() : method.getReturnType()) + " value = 2;\n");
messageBuilder.append("}\n\n");
builder.append(messageBuilder);
}
private String createMessage(StringBuilder sb, SClass sType) {
if (sType == null) {
return "VoidResponse";
}
Class clazz = sType.getInstanceClass();
if (generatedClasses.containsKey(clazz)) {
return generatedClasses.get(clazz);
}
if (clazz == Class.class) {
return "string";
} else if (clazz == boolean.class || clazz == Boolean.class) {
return "bool";
} else if (clazz == Long.class || clazz == long.class) {
return "int64";
} else if (clazz == Date.class) {
return "int64";
} else if (clazz == DataHandler.class || clazz == byte[].class || clazz == Byte[].class) {
return "bytes";
} else if (clazz == Integer.class | clazz == int.class) {
return "int32";
} else if (clazz == Float.class | clazz == float.class) {
return "float";
} else if (clazz == Double.class | clazz == double.class) {
return "double";
} else if (clazz.isEnum()) {
return createEnum(sb, clazz);
} else if (sType.isString()) {
return "string";
} else {
StringBuilder messageBuilder = new StringBuilder();
generatedClasses.put(clazz, clazz.getSimpleName());
messageBuilder.append("message " + clazz.getSimpleName() + " {\n");
int counter = 1;
if (!sType.getSubClasses().isEmpty()) {
messageBuilder.append("\trequired string __actual_type = " + (counter++) + ";\n");
for (SClass subClass : sType.getSubClasses()) {
messageBuilder.append('\t');
messageBuilder.append("optional ");
messageBuilder.append(createMessage(sb, subClass) + " __" + subClass.getInstanceClass().getSimpleName() + " = " + (counter++) + ";\n");
}
}
for (SField field : sType.getAllFields()) {
messageBuilder.append('\t');
if (field.isAggregate()) {
messageBuilder.append("repeated ");
} else {
messageBuilder.append("optional ");
}
SClass type = field.getType();
if (field.isAggregate()) {
type = field.getGenericType();
// Type genericReturnType = method.getGenericReturnType();
// if (genericReturnType instanceof ParameterizedType) {
// ParameterizedType parameterizedTypeImpl =
// (ParameterizedType)genericReturnType;
// Type type2 =
// parameterizedTypeImpl.getActualTypeArguments()[0];
// parameterType = ((Class)type2);
// }
}
messageBuilder.append(createMessage(sb, type) + " " + field.getName() + " = " + (counter++) + ";\n");
}
messageBuilder.append("}\n\n");
sb.append(messageBuilder);
return clazz.getSimpleName();
}
}
private String createEnum(StringBuilder sb, Class clazz) {
if (generatedClasses.containsKey(clazz)) {
return generatedClasses.get(clazz);
} else {
generatedClasses.put(clazz, clazz.getSimpleName());
}
sb.append("enum " + clazz.getSimpleName() + "{\n");
int counter = 0;
for (Object o : clazz.getEnumConstants()) {
sb.append("\t" + clazz.getSimpleName() + "_" + o.toString() + " = " + (counter++) + ";\n");
}
sb.append("}\n\n");
return clazz.getSimpleName();
}
private void createRequestMessage(StringBuilder builder, SMethod method, String messageName) {
if (generatedMessages.containsKey(messageName)) {
return;
}
StringBuilder messageBuilder = new StringBuilder();
generatedMessages.put(messageName, messageName);
messageBuilder.append("message " + messageName + " {\n");
int counter = 1;
for (SParameter sParameter : method.getParameters()) {
messageBuilder.append('\t');
if (sParameter.isAggregate()) {
messageBuilder.append("repeated ");
} else {
messageBuilder.append("optional ");
}
messageBuilder.append(createMessage(builder, sParameter.getBestType()) + " " + sParameter.getName() + " = " + (counter++) + ";\n");
}
messageBuilder.append("}\n\n");
builder.append(messageBuilder);
}
}
