/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Rodrigo Westrupp
*/
package com.caucho.amber.gen;
import com.caucho.VersionFactory;
import com.caucho.amber.field.*;
import com.caucho.amber.type.EmbeddableType;
import com.caucho.bytecode.*;
import com.caucho.java.JavaWriter;
import com.caucho.java.gen.ClassComponent;
import com.caucho.util.L10N;
import java.io.IOException;
import java.lang.reflect.Constructor;
import java.util.ArrayList;
/**
* Generates the Java code for the wrapped object.
*/
public class EmbeddableComponent extends ClassComponent {
private static final L10N L = new L10N(EmbeddableComponent.class);
private String _baseClassName;
private String _extClassName;
private EmbeddableType _embeddableType;
public EmbeddableComponent()
{
}
/**
* Sets the bean info for the generator
*/
public void setEmbeddableType(EmbeddableType embeddableType)
{
_embeddableType = embeddableType;
}
/**
* Sets the base class name
*/
public void setBaseClassName(String baseClassName)
{
_baseClassName = baseClassName;
}
/**
* Gets the base class name
*/
public String getBaseClassName()
{
return _baseClassName;
}
/**
* Sets the ext class name
*/
public void setExtClassName(String extClassName)
{
_extClassName = extClassName;
}
/**
* Sets the ext class name
*/
public String getClassName()
{
return _extClassName;
}
/**
* Get bean class name.
*/
public String getBeanClassName()
{
return _baseClassName;
}
/**
* Starts generation of the Java code
*/
@Override
public void generate(JavaWriter out)
throws IOException
{
try {
generateHeader(out);
generateInit(out);
generateMake(out);
generateMakeFromLoad(out);
// jpa/0u21
generateGetField(out);
// generateFields(out);
generateLoad(out);
} catch (IOException e) {
throw e;
}
}
/**
* Generates the class header for the generated code.
*/
private void generateHeader(JavaWriter out)
throws IOException
{
out.println("/*");
out.println(" * Generated by Resin Amber");
out.println(" * " + VersionFactory.getVersion());
out.println(" */");
out.println("private static final java.util.logging.Logger __caucho_log");
out.println(" = java.util.logging.Logger.getLogger(\"" + getBeanClassName() + "\");");
}
/**
* Generates the initialization.
*/
private void generateInit(JavaWriter out)
throws IOException
{
String className = getClassName();
int p = className.lastIndexOf('.');
if (p > 0)
className = className.substring(p + 1);
ArrayList<AmberField> fields = _embeddableType.getFields();
for (Constructor ctor : _embeddableType.getBeanClass().getConstructors()) {
out.println();
// XXX: s/b actual access type?
out.print("public ");
out.print(className);
out.print("(");
Class []args = ctor.getParameterTypes();
for (int i = 0; i < args.length; i++) {
if (i != 0)
out.print(", ");
out.printClass(args[i]);
out.print(" a" + i);
}
out.println(")");
out.println("{");
out.pushDepth();
out.print("super(");
for (int i = 0; i < args.length; i++) {
if (i != 0)
out.print(", ");
out.print("a" + i);
}
out.println(");");
for (AmberField field : fields) {
field.generatePostConstructor(out);
}
out.popDepth();
out.println("}");
}
}
/**
* Generates the fields.
*/
/*
private void generateFields(JavaWriter out)
throws IOException
{
// jpa/0u22
if (_embeddableType.isIdClass() && ! _embeddableType.isFieldAccess())
return;
ArrayList<AmberField> fields = _embeddableType.getFields();
for (int i = 0; i < fields.size(); i++) {
AmberField prop = fields.get(i);
prop.generatePrologue(out, null);
prop.generateSuperGetterMethod(out);
prop.generateGetterMethod(out);
prop.generateSuperSetterMethod(out);
prop.generateSetterMethod(out);
}
}
*/
/**
* Generates the make method.
*/
private void generateMake(JavaWriter out)
throws IOException
{
ArrayList<AmberField> fields = _embeddableType.getFields();
out.println();
out.println("public static " + getClassName() + " __caucho_make(");
for (int i = 0; i < fields.size(); i++) {
AmberField prop = fields.get(i);
out.print(" " + prop.getJavaTypeName() + " a" + i);
if (i + 1 < fields.size())
out.println(",");
}
out.println(")");
out.println("{");
out.pushDepth();
out.println(getClassName() + " bean = new " + getClassName() + "();");
for (int i = 0; i < fields.size(); i++) {
AmberField prop = fields.get(i);
out.println(prop.generateSuperSetter("bean", "a" + i) + ";");
}
out.println("return bean;");
out.popDepth();
out.println("}");
}
/**
* Generates the make method.
*/
private void generateMakeFromLoad(JavaWriter out)
throws IOException
{
ArrayList<AmberField> fields = _embeddableType.getFields();
out.println();
out.println("public static " + getClassName() + " __caucho_make(");
out.println(" com.caucho.amber.manager.AmberConnection aConn,");
out.println(" java.sql.ResultSet rs,");
out.println(" int index)");
out.println(" throws java.sql.SQLException");
out.println("{");
out.pushDepth();
out.println(getClassName() + " bean = new " + getClassName() + "();");
out.println("bean.__caucho_load(aConn, rs, index);");
out.println("return bean;");
out.popDepth();
out.println("}");
}
/**
* Generates the get field method.
*/
private void generateGetField(JavaWriter out)
throws IOException
{
out.println();
out.println("public Object __caucho_get_field(int index)");
out.println("{");
out.pushDepth();
out.println("switch (index) {");
out.pushDepth();
ArrayList<AmberField> fields = _embeddableType.getFields();
for (int i = 0; i < fields.size(); i++) {
AmberField prop = fields.get(i);
if (! (prop instanceof PropertyField))
break;
out.println("case " + i + ":");
out.println(" return " + prop.generateSuperGetter("this") + ";");
out.println();
}
out.println("default:");
out.println(" throw new IllegalStateException(\"invalid index: \" + index);");
out.popDepth();
out.println("}");
out.popDepth();
out.println("}");
}
/**
* Generates the load.
*/
private void generateLoad(JavaWriter out)
throws IOException
{
out.println();
out.println("public int __caucho_load(com.caucho.amber.manager.AmberConnection aConn,");
out.println(" java.sql.ResultSet rs,");
out.println(" int index)");
out.println(" throws java.sql.SQLException");
out.println("{");
out.pushDepth();
if (_embeddableType.isIdClass()) {
out.println("return 0;");
}
else {
_embeddableType.generateLoad(out, "rs", "index", 0, -1);
out.println("return index;");
}
out.popDepth();
out.println("}");
}
}