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codegen module for querydsl
/*
* Copyright 2011, Mysema Ltd
*
* Licensed 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 com.mysema.query.codegen;
import javax.annotation.Generated;
import java.io.IOException;
import java.lang.annotation.Annotation;
import java.util.*;
import com.google.common.base.Function;
import com.google.common.collect.Lists;
import com.mysema.codegen.CodeWriter;
import com.mysema.codegen.model.*;
import com.mysema.util.BeanUtils;
/**
* BeanSerializer is a {@link Serializer} implementation which serializes {@link EntityType}
* instances into JavaBean classes
*
* @author tiwe
*
*/
public class BeanSerializer implements Serializer{
private static final Function propertyToParameter = new Function() {
@Override
public Parameter apply(Property input) {
return new Parameter(input.getName(), input.getType());
}
};
private final boolean propertyAnnotations;
private final List interfaces = Lists.newArrayList();
private final String javadocSuffix;
private boolean addToString, addFullConstructor;
private boolean printSupertype = false;
/**
* Create a new BeanSerializer
*/
public BeanSerializer() {
this(true, " is a Querydsl bean type");
}
/**
* Create a new BeanSerializer with the given javadoc suffix
*
* @param javadocSuffix
*/
public BeanSerializer(String javadocSuffix) {
this(true, javadocSuffix);
}
/**
* Create a new BeanSerializer
*
* @param propertyAnnotations
*/
public BeanSerializer(boolean propertyAnnotations) {
this(propertyAnnotations, " is a Querydsl bean type");
}
/**
* Create a new BeanSerializer
*
* @param propertyAnnotations
* @param javadocSuffix
*/
public BeanSerializer(boolean propertyAnnotations, String javadocSuffix) {
this.propertyAnnotations = propertyAnnotations;
this.javadocSuffix = javadocSuffix;
}
@Override
public void serialize(EntityType model, SerializerConfig serializerConfig,
CodeWriter writer) throws IOException {
String simpleName = model.getSimpleName();
// package
if (!model.getPackageName().isEmpty()) {
writer.packageDecl(model.getPackageName());
}
// imports
Set importedClasses = getAnnotationTypes(model);
for (Type iface : interfaces) {
importedClasses.add(iface.getFullName());
}
importedClasses.add(Generated.class.getName());
if (model.hasLists()) {
importedClasses.add(List.class.getName());
}
if (model.hasCollections()) {
importedClasses.add(Collection.class.getName());
}
if (model.hasSets()) {
importedClasses.add(Set.class.getName());
}
if (model.hasMaps()) {
importedClasses.add(Map.class.getName());
}
if (addToString && model.hasArrays()) {
importedClasses.add(Arrays.class.getName());
}
writer.importClasses(importedClasses.toArray(new String[importedClasses.size()]));
// javadoc
writer.javadoc(simpleName + javadocSuffix);
// header
for (Annotation annotation : model.getAnnotations()) {
writer.annotation(annotation);
}
writer.line("@Generated(\"", getClass().getName(), "\")");
if (!interfaces.isEmpty()) {
Type superType = null;
if (printSupertype && model.getSuperType() != null) {
superType = model.getSuperType().getType();
}
Type[] ifaces = interfaces.toArray(new Type[interfaces.size()]);
writer.beginClass(model, superType, ifaces);
} else if (printSupertype && model.getSuperType() != null) {
writer.beginClass(model, model.getSuperType().getType());
} else {
writer.beginClass(model);
}
bodyStart(model, writer);
if (addFullConstructor) {
addFullConstructor(model, writer);
}
// fields
for (Property property : model.getProperties()) {
if (propertyAnnotations) {
for (Annotation annotation : property.getAnnotations()) {
writer.annotation(annotation);
}
}
writer.privateField(property.getType(), property.getEscapedName());
}
// accessors
for (Property property : model.getProperties()) {
String propertyName = property.getEscapedName();
// getter
writer.beginPublicMethod(property.getType(), "get"+BeanUtils.capitalize(propertyName));
writer.line("return ", propertyName, ";");
writer.end();
// setter
Parameter parameter = new Parameter(propertyName, property.getType());
writer.beginPublicMethod(Types.VOID, "set"+BeanUtils.capitalize(propertyName), parameter);
writer.line("this.", propertyName, " = ", propertyName, ";");
writer.end();
}
if (addToString) {
addToString(model, writer);
}
bodyEnd(model, writer);
writer.end();
}
protected void addFullConstructor(EntityType model, CodeWriter writer) throws IOException {
// public empty constructor
writer.beginConstructor();
writer.end();
// full constructor
writer.beginConstructor(model.getProperties(), propertyToParameter);
for (Property property : model.getProperties()) {
writer.line("this.", property.getEscapedName(), " = ", property.getEscapedName(), ";");
}
writer.end();
}
protected void addToString(EntityType model, CodeWriter writer) throws IOException {
writer.beginPublicMethod(Types.STRING, "toString");
StringBuilder builder = new StringBuilder();
for (Property property : model.getProperties()) {
String propertyName = property.getEscapedName();
if (builder.length() > 0) {
builder.append(" + \", ");
} else {
builder.append("\"");
}
builder.append(propertyName + " = \" + ");
if (property.getType().getCategory() == TypeCategory.ARRAY) {
builder.append("Arrays.toString(" + propertyName + ")");
} else {
builder.append(propertyName);
}
}
writer.line(" return ", builder.toString(), ";");
writer.end();
}
protected void bodyStart(EntityType model, CodeWriter writer) throws IOException {
// template method
}
protected void bodyEnd(EntityType model, CodeWriter writer) throws IOException {
// template method
}
private Set getAnnotationTypes(EntityType model) {
Set imports = new HashSet();
for (Annotation annotation : model.getAnnotations()) {
imports.add(annotation.annotationType().getName());
}
if (propertyAnnotations) {
for (Property property : model.getProperties()) {
for (Annotation annotation : property.getAnnotations()) {
imports.add(annotation.annotationType().getName());
}
}
}
return imports;
}
public void addInterface(Class iface) {
interfaces.add(new ClassType(iface));
}
public void addInterface(Type type) {
interfaces.add(type);
}
public void setAddToString(boolean addToString) {
this.addToString = addToString;
}
public void setAddFullConstructor(boolean addFullConstructor) {
this.addFullConstructor = addFullConstructor;
}
public void setPrintSupertype(boolean printSupertype) {
this.printSupertype = printSupertype;
}
}