org.objectfabric.GeneratorBase Maven / Gradle / Ivy
/**
* This file is part of ObjectFabric (http://objectfabric.org).
*
* ObjectFabric is licensed under the Apache License, Version 2.0, the terms
* of which may be found at http://www.apache.org/licenses/LICENSE-2.0.html.
*
* Copyright ObjectFabric Inc.
*
* This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
* WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
package org.objectfabric;
import java.io.File;
public abstract class GeneratorBase {
public static final String SCHEMA_FILE = "objectfabric-" + TObject.OBJECT_FABRIC_VERSION + ".xsd";
private ObjectModelDef _model;
private byte[] _uid;
private String _xml;
private String _folder;
private Target _target;
private String _copyright;
private char[] _cache = new char[1024];
private int _cacheLength;
public GeneratorBase(ObjectModelDef model) {
_model = model;
}
public ObjectModelDef objectModel() {
return _model;
}
public void setObjectModel(ObjectModelDef value) {
_model = value;
}
public String xml() {
return _xml;
}
public void xml(String value) {
_xml = value;
}
public String folder() {
return _folder;
}
public void folder(String value) {
_folder = value;
}
public Target target() {
return _target;
}
public void target(Target value) {
_target = value;
}
public byte[] objectModelUID() {
return _uid;
}
public void objectModelUID(byte[] value) {
_uid = value;
}
String copyright() {
return _copyright;
}
void copyright(String value) {
_copyright = value;
}
boolean isJava() {
return _target == Target.JAVA;
}
boolean isCSharp() {
return _target == Target.CSHARP;
}
protected void append(String text) {
ensureCapacity(_cacheLength + text.length());
text.getChars(0, text.length(), _cache, _cacheLength);
_cacheLength += text.length();
}
protected void append(StringBuilder text) {
ensureCapacity(_cacheLength + text.length());
text.getChars(0, text.length(), _cache, _cacheLength);
_cacheLength += text.length();
}
private void ensureCapacity(int newCapacity) {
int capacity = _cache.length;
while (capacity < newCapacity)
capacity <<= OpenMap.TIMES_TWO_SHIFT;
if (capacity != _cache.length) {
char[] temp = new char[capacity];
Platform.arraycopy(_cache, 0, temp, 0, _cacheLength);
_cache = temp;
}
}
protected void write(FileGenerator file) {
file.generate();
writeCacheToFile(file);
}
protected void replace(String a, String b) {
String s = new String(_cache, 0, _cacheLength);
s = s.replace(a, b);
ensureCapacity(s.length());
s.getChars(0, s.length(), _cache, 0);
_cacheLength = s.length();
}
protected void writeCacheToFile(FileGenerator file) {
_target.onWritingFile(this, file);
PlatformGenerator.writeFile(file.Path, _cache, _cacheLength);
_cacheLength = 0;
System.out.println("Generated " + file.Path);
}
public void run(String folder) {
run(folder, (Target) null);
}
public void run(String folder, Target target) {
run(folder, target, null);
}
/**
* ObjectModels are identified using a UID. This method can be used to generate object
* models that will be considered identical by ObjectFabric. E.g. to replicate a model
* between Java, GWT or .NET processes. Make sure that all models generated using the
* same UID are strictly identical, or replication will fail, possibly without any
* descriptive error message.
*/
public void run(String folder, byte[] uid) {
run(folder, null, uid);
}
public void run(String folder, Target target, byte[] uid) {
run(folder, target, uid, null);
}
List run(String folder, Target target, byte[] uid, ModelVisitor visitor) {
if (target == null)
target = Platform.get().value() == Platform.JVM ? Target.JAVA : Target.CSHARP;
return target.writeFiles(this, folder, uid, visitor);
}
List run(byte[] uid, ModelVisitor visitor) {
if (uid == null)
uid = Platform.get().newUID();
if (uid.length != UID.LENGTH)
throw new IllegalArgumentException();
_uid = uid;
_model.prepare();
if (visitor != null)
visitor.visit(_model);
PlatformSet dirs = new PlatformSet();
List files = new List();
for (int i = 0; i < _model.allPackages().size(); i++) {
PackageDef p = _model.allPackages().get(i);
String path = folder();
if (isJava())
path += "/" + p.fullName().replace('.', '/');
if (!dirs.contains(path)) {
File directory = new File(path);
directory.mkdirs();
dirs.add(path);
}
for (int j = 0; j < p.Classes.size(); j++) {
FileGenerator file = new FileGeneratorClass(this, p.Classes.get(j));
write(file);
files.add(file);
}
}
if (!objectModel().skip()) {
FileGenerator file = new FileGeneratorObjectModel(this);
write(file);
files.add(file);
}
return files;
}
/**
* Deletes all files and folders. Can be used before running the generator.
*/
public static void clearFolder(String folder) {
PlatformGenerator.clearFolder(folder);
}
int parseArgs(String[] args) {
final String XML = "-xml:";
final String OUT = "-out:";
final String TARGET = "-target:";
final String JAVA = "java";
final String CS = "cs";
for (String arg : args) {
if (arg.startsWith(XML)) {
xml(arg.substring(XML.length()));
if (!PlatformGenerator.fileExists(xml())) {
System.out.println("Input file does not exist: " + xml());
return 1;
}
} else if (arg.startsWith(OUT)) {
folder(arg.substring(OUT.length()));
PlatformGenerator.mkdir(folder());
} else if (arg.startsWith(TARGET)) {
String t = arg.substring(TARGET.length());
if (JAVA.equals(t))
target(Target.JAVA);
else if (CS.equals(t))
target(Target.CSHARP);
else {
System.out.println("Invalid target: " + arg);
return 1;
}
} else {
System.out.println("Invalid argument: " + arg);
return 1;
}
}
if (xml() == null || folder() == null) {
int pad = 12;
System.out.println("");// ////////////////////////////////////////////////////////////////////////////////////////|Cut
System.out.println("ObjectFabric Generator " + TObject.OBJECT_FABRIC_VERSION + " (http://objectfabric.org)");
System.out.println("Copyright (c) ObjectFabric Inc.");
System.out.println("");
boolean java = Platform.get().value() == Platform.JVM;
String exe = java ? "java -jar objectfabric.jar" : "Generator.exe";
System.out.println("Usage: " + exe + " [options]");
System.out.println("");
System.out.println("Options:");
System.out.println(Utils.padRight(" " + XML + ":", pad));
System.out.println(Utils.padRight("", pad) + "XML object model to generate. Default is to look for file");
System.out.println(Utils.padRight("", pad) + "ObjectModel.xml in current directory.");
System.out.println(Utils.padRight(" " + OUT + ":", pad));
System.out.println(Utils.padRight("", pad) + "Target directory for generated source tree. Default is");
System.out.println(Utils.padRight("", pad) + "current directory.");
System.out.println(Utils.padRight(" " + TARGET + ":[" + JAVA + "|" + CS + "]", pad));
System.out.println(Utils.padRight("", pad) + "Source language to generate. Default is Java when run on a JVM,");
System.out.println(Utils.padRight("", pad) + "and C# on .NET.");
System.out.println(Utils.padRight("", pad) + "Do not generate synchronous methods on generated classes, only the");
System.out.println(Utils.padRight("", pad) + "asynchronous versions. This is handy to make sure no thread will");
System.out.println(Utils.padRight("", pad) + "ever block on a method in an application, either for best");
System.out.println(Utils.padRight("", pad) + "performance, or in environments like GWT where blocking a thread");
System.out.println(Utils.padRight("", pad) + "is not allowed.");
}
return 0;
}
}
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