com.abubusoft.kripton.processor.sqlite.BindDataSourceBuilder Maven / Gradle / Ivy
/*******************************************************************************
* Copyright 2015, 2017 Francesco Benincasa ([email protected]).
*
* 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.abubusoft.kripton.processor.sqlite;
import static com.abubusoft.kripton.processor.core.reflect.TypeUtility.className;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.util.Collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.Date;
import java.util.List;
import java.util.Set;
import javax.annotation.processing.Filer;
import javax.lang.model.element.Modifier;
import javax.lang.model.element.PackageElement;
import javax.lang.model.util.Elements;
import com.abubusoft.kripton.android.Logger;
import com.abubusoft.kripton.android.annotation.BindDataSource;
import com.abubusoft.kripton.android.sqlite.AbstractDataSource;
import com.abubusoft.kripton.android.sqlite.AbstractDataSource.AbstractExecutable;
import com.abubusoft.kripton.android.sqlite.AbstractDataSource.OnErrorListener;
import com.abubusoft.kripton.android.sqlite.DataSourceOptions;
import com.abubusoft.kripton.android.sqlite.SQLContext;
import com.abubusoft.kripton.android.sqlite.SQLContextInSessionImpl;
import com.abubusoft.kripton.android.sqlite.SQLiteEvent;
import com.abubusoft.kripton.android.sqlite.SQLiteTable;
import com.abubusoft.kripton.android.sqlite.SQLiteUpdateTask;
import com.abubusoft.kripton.android.sqlite.SQLiteUpdateTaskHelper;
import com.abubusoft.kripton.android.sqlite.TransactionResult;
import com.abubusoft.kripton.common.CaseFormat;
import com.abubusoft.kripton.common.Converter;
import com.abubusoft.kripton.common.Pair;
import com.abubusoft.kripton.common.StringUtils;
import com.abubusoft.kripton.exception.KriptonRuntimeException;
import com.abubusoft.kripton.processor.BaseProcessor;
import com.abubusoft.kripton.processor.BindDataSourceSubProcessor;
import com.abubusoft.kripton.processor.Version;
import com.abubusoft.kripton.processor.bind.JavaWriterHelper;
import com.abubusoft.kripton.processor.core.reflect.TypeUtility;
import com.abubusoft.kripton.processor.element.GeneratedTypeElement;
import com.abubusoft.kripton.processor.exceptions.CircularRelationshipException;
import com.abubusoft.kripton.processor.sqlite.core.EntityUtility;
import com.abubusoft.kripton.processor.sqlite.core.JavadocUtility;
import com.abubusoft.kripton.processor.sqlite.model.SQLiteDaoDefinition;
import com.abubusoft.kripton.processor.sqlite.model.SQLiteDatabaseSchema;
import com.abubusoft.kripton.processor.sqlite.model.SQLiteEntity;
import com.abubusoft.kripton.processor.utils.AnnotationProcessorUtilis;
import com.squareup.javapoet.ArrayTypeName;
import com.squareup.javapoet.ClassName;
import com.squareup.javapoet.CodeBlock;
import com.squareup.javapoet.FieldSpec;
import com.squareup.javapoet.FieldSpec.Builder;
import com.squareup.javapoet.MethodSpec;
import com.squareup.javapoet.ParameterizedTypeName;
import com.squareup.javapoet.TypeName;
import com.squareup.javapoet.TypeSpec;
import com.squareup.javapoet.TypeVariableName;
import android.database.sqlite.SQLiteDatabase;
import io.reactivex.BackpressureStrategy;
import io.reactivex.Flowable;
import io.reactivex.FlowableEmitter;
import io.reactivex.Maybe;
import io.reactivex.MaybeEmitter;
import io.reactivex.Observable;
import io.reactivex.ObservableEmitter;
import io.reactivex.Scheduler;
import io.reactivex.Single;
import io.reactivex.SingleEmitter;
import io.reactivex.subjects.PublishSubject;
/**
* Generates database class.
*
* @author Francesco Benincasa ([email protected])
*/
public class BindDataSourceBuilder extends AbstractBuilder {
/** The Constant DATA_SOURCE_SINGLE_THREAD_NAME. */
private static final String DATA_SOURCE_SINGLE_THREAD_NAME = "DataSourceSingleThread";
/** The Constant PREFIX. */
public static final String PREFIX = "Bind";
/** The Constant SUFFIX. */
public static final String SUFFIX = "DataSource";
/**
* Instantiates a new bind data source builder.
*
* @param elementUtils
* the element utils
* @param filer
* the filer
* @param model
* the model
*/
public BindDataSourceBuilder(Elements elementUtils, Filer filer, SQLiteDatabaseSchema model) {
super(elementUtils, filer, model);
}
/**
* Generate database.
*
* @param elementUtils
* the element utils
* @param filer
* the filer
* @param schema
* the schema
* @throws Exception
* the exception
*/
public static void generate(Elements elementUtils, Filer filer, SQLiteDatabaseSchema schema) throws Exception {
BindDaoFactoryBuilder visitor = new BindDaoFactoryBuilder(elementUtils, filer, schema);
visitor.buildDaoFactoryInterface(elementUtils, filer, schema);
String daoFactoryName = BindDaoFactoryBuilder.generateDaoFactoryName(schema);
BindDataSourceBuilder visitorDao = new BindDataSourceBuilder(elementUtils, filer, schema);
visitorDao.buildDataSource(elementUtils, filer, schema, daoFactoryName);
generateSchema(schema);
}
/**
* Generate schema.
*
* @param schema
* the schema
* @throws FileNotFoundException
* the file not found exception
* @throws IOException
* Signals that an I/O exception has occurred.
*/
private static void generateSchema(SQLiteDatabaseSchema schema) throws FileNotFoundException, IOException {
// when we run in JUNIT of Kripton, we don't have to generate schemas
// if (BindDataSourceSubProcessor.JUNIT_TEST_MODE)
// return;
if (!schema.generateSchema)
return;
// and now, write schema.create.v and schema.drop.v
String schemaCreation = defineFileName(schema);
String schemaLocation = schema.schemaLocationDirectory;
if (!StringUtils.hasText(schemaLocation)) {
schemaLocation = "schemas";
}
File schemaCreatePath = new File(schemaLocation).getAbsoluteFile();
File schemaCreateFile = new File(schemaLocation, schemaCreation).getAbsoluteFile();
schemaCreatePath.mkdirs();
AnnotationProcessorUtilis.infoOnGeneratedFile(BindDataSource.class, schemaCreateFile);
FileOutputStream fos = new FileOutputStream(schemaCreateFile);
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(fos));
bw.write("------------------------------------------------------------------------------------\n");
bw.write("--\n");
bw.write("-- Filename: " + schemaCreation + "\n");
bw.write("--\n");
bw.write(String.format("-- Date: %s", (new Date()).toString()) + "\n");
bw.write("--\n");
if (!BindDataSourceSubProcessor.JUNIT_TEST_MODE) {
bw.write(String.format("-- This file was generated by Kripton Annotation Processor v. %s\n",
Version.getVersion()));
bw.write(String.format("--\n"));
}
bw.write("------------------------------------------------------------------------------------\n");
bw.newLine();
for (String sql : schema.sqlForCreate) {
bw.write(sql);
bw.newLine();
}
bw.close();
}
/**
* Define file name.
*
* @param model
* the model
* @return the string
*/
static String defineFileName(SQLiteDatabaseSchema model) {
int lastIndex = model.fileName.lastIndexOf(".");
String schemaName = model.fileName;
if (lastIndex > -1) {
schemaName = model.fileName.substring(0, lastIndex);
}
schemaName = schemaName.toLowerCase() + "_schema_" + model.version + ".sql";
return schemaName;
}
/**
* Generate dataSource name.
*
* @param schema
* the schema
* @return associated class name
*/
public static ClassName generateDataSourceName(SQLiteDatabaseSchema schema) {
String dataSourceName = schema.getName();
dataSourceName = PREFIX + dataSourceName;
PackageElement pkg = BaseProcessor.elementUtils.getPackageOf(schema.getElement());
String packageName = pkg.isUnnamed() ? "" : pkg.getQualifiedName().toString();
return ClassName.get(packageName, dataSourceName);
}
/**
* Builds the data source.
*
* @param elementUtils
* the element utils
* @param filer
* the filer
* @param schema
* the schema
* @param daoFactoryName
* the dao factory name
* @throws Exception
* the exception
*/
public void buildDataSource(Elements elementUtils, Filer filer, SQLiteDatabaseSchema schema, String daoFactoryName)
throws Exception {
ClassName daoFactoryClazz = className(daoFactoryName);
Converter convert = CaseFormat.UPPER_CAMEL.converterTo(CaseFormat.LOWER_CAMEL);
ClassName dataSourceClassName = generateDataSourceName(schema);
AnnotationProcessorUtilis.infoOnGeneratedClasses(BindDataSource.class, dataSourceClassName);
classBuilder = TypeSpec.classBuilder(dataSourceClassName.simpleName()).addModifiers(Modifier.PUBLIC)
.superclass(AbstractDataSource.class).addSuperinterface(daoFactoryClazz)
.addSuperinterface(TypeUtility.typeName(schema.getElement().asType()));
classBuilder.addJavadoc("\n");
classBuilder.addJavadoc("Implementation of the $L datasource.\n", schema.getName());
classBuilder.addJavadoc("This class expose database interface through Dao attribute.\n", schema.getName());
classBuilder.addJavadoc("
\n\n");
JavadocUtility.generateJavadocGeneratedBy(classBuilder);
classBuilder.addJavadoc("@see $T\n", className(schema.getName()));
classBuilder.addJavadoc("@see $T\n", daoFactoryClazz);
for (SQLiteDaoDefinition dao : schema.getCollection()) {
TypeName daoImplName = BindDaoBuilder.daoTypeName(dao);
classBuilder.addJavadoc("@see $T\n", dao.getElement());
classBuilder.addJavadoc("@see $T\n", daoImplName);
String entity = BindDataSourceSubProcessor.generateEntityName(dao, dao.getEntity());
classBuilder.addJavadoc("@see $T\n", TypeUtility.typeName(entity));
}
// define static fields
// instance
classBuilder.addField(FieldSpec.builder(dataSourceClassName, "instance", Modifier.STATIC, Modifier.VOLATILE)
.addJavadoc("datasource singleton
\n").build());
classBuilder
.addField(FieldSpec.builder(Object.class, "mutex", Modifier.STATIC, Modifier.FINAL, Modifier.PRIVATE)
.addJavadoc("Mutex to manage multithread access to instance
\n")
.initializer("new Object()").build());
for (SQLiteDaoDefinition dao : schema.getCollection()) {
// TypeName daoInterfaceName =
// BindDaoBuilder.daoInterfaceTypeName(dao);
TypeName daoImplName = BindDaoBuilder.daoTypeName(dao);
classBuilder.addField(FieldSpec.builder(daoImplName, convert.convert(dao.getName()), Modifier.PROTECTED)
.addJavadoc("dao instance
\n").initializer("new $T(this)", daoImplName).build());
// dao with connections
{
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("get" + dao.getName())
.addAnnotation(Override.class).addModifiers(Modifier.PUBLIC)
.returns(BindDaoBuilder.daoTypeName(dao));
methodBuilder.addCode("return $L;\n", convert.convert(dao.getName()));
classBuilder.addMethod(methodBuilder.build());
}
}
if (schema.generateRx) {
generateRx(dataSourceClassName, daoFactoryName);
for (SQLiteDaoDefinition dao : schema.getCollection()) {
// subject
MethodSpec.Builder methodBuilder = MethodSpec
.methodBuilder("get" + dao.getEntitySimplyClassName() + "Subject")
.addModifiers(Modifier.PUBLIC);
methodBuilder
.addStatement("return $L.getSubject()",
CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_CAMEL, convert.convert(dao.getName())))
.returns(ParameterizedTypeName.get(PublishSubject.class, SQLiteEvent.class));
classBuilder.addMethod(methodBuilder.build());
}
}
// interface
generateMethodExecuteTransaction(daoFactoryName);
generateMethodExecuteBatch(daoFactoryName);
// generate instance
generateInstanceOrBuild(schema, dataSourceClassName.simpleName(), true);
// generate open
generateOpen(dataSourceClassName.simpleName());
// generate openReadOnly
generateOpenReadOnly(dataSourceClassName.simpleName());
// generate constructor
generateConstructor(schema);
// before use entities, order them with dependencies respect
List orderedEntities = generateOrderedEntitiesList(schema);
// onCreate
boolean useForeignKey = generateOnCreate(schema, orderedEntities);
// onUpgrade
generateOnUpgrade(schema, orderedEntities);
// onConfigure
generateOnConfigure(useForeignKey);
// generate
generateDaoUids(classBuilder, schema);
//
// generate prepared statement cleaner
{
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("clearCompiledStatements")
.addModifiers(Modifier.PUBLIC).returns(Void.TYPE);
for (SQLiteDaoDefinition dao : schema.getCollection()) {
methodBuilder.addStatement("$T.clearCompiledStatements()",
TypeUtility.className(dao.getElement().getQualifiedName().toString() + "Impl"));
}
classBuilder.addMethod(methodBuilder.build());
}
// generate single thread datasource
generateDataSourceSingleThread(schema, dataSourceClassName.simpleName());
// generate build
generateInstanceOrBuild(schema, dataSourceClassName.simpleName(), false);
{
Builder f = FieldSpec
.builder(ArrayTypeName.of(SQLiteTable.class), "TABLES", Modifier.FINAL, Modifier.STATIC)
.addJavadoc("List of tables compose datasource\n");
com.squareup.javapoet.CodeBlock.Builder c = CodeBlock.builder();
String s = "";
c.add("{");
for (SQLiteEntity entity : schema.getEntities()) {
String tableName = BindTableGenerator.getTableClassName(entity.getName());
c.add(s + "new $T()", TypeUtility.className(tableName));
s = ", ";
}
for (GeneratedTypeElement entity : schema.generatedEntities) {
String tableName = BindTableGenerator.getTableClassName(entity.getQualifiedName());
c.add(s + "new $T()", TypeUtility.className(tableName));
s = ", ";
}
c.add("}");
f.initializer(c.build());
classBuilder.addField(f.build());
classBuilder.addMethod(MethodSpec.methodBuilder("tables").addJavadoc("List of tables compose datasource:\n")
.addModifiers(Modifier.PUBLIC, Modifier.STATIC).addStatement("return TABLES")
.returns(ArrayTypeName.of(SQLiteTable.class)).build());
}
TypeSpec typeSpec = classBuilder.build();
JavaWriterHelper.writeJava2File(filer, dataSourceClassName.packageName(), typeSpec);
}
/**
* Generate constructor.
*
* @param schema
* the schema
*/
private void generateConstructor(SQLiteDatabaseSchema schema) {
// constructor
MethodSpec.Builder methodBuilder = MethodSpec.constructorBuilder()
.addParameter(DataSourceOptions.class, "options").addModifiers(Modifier.PROTECTED);
methodBuilder.addStatement("super($S, $L, options)", schema.configInMemory ? null : schema.fileName,
schema.version);
classBuilder.addMethod(methodBuilder.build());
}
/**
* Generate Dao's UID. If specified, prefix will be used to
*
* @param classBuilder
* the class builder
* @param schema
* the schema
*/
public static void generateDaoUids(TypeSpec.Builder classBuilder, SQLiteDatabaseSchema schema) {
for (SQLiteDaoDefinition dao : schema.getCollection()) {
classBuilder.addField(
FieldSpec.builder(Integer.TYPE, dao.daoUidName, Modifier.FINAL, Modifier.STATIC, Modifier.PUBLIC)
.initializer("" + dao.daoUidValue)
.addJavadoc("Unique identifier for Dao $L\n", dao.getName()).build());
}
}
/**
* Generate data source single thread.
*
* @param schema
* the schema
* @param dataSourceName
* the data source name
*/
private void generateDataSourceSingleThread(SQLiteDatabaseSchema schema, String dataSourceName) {
// class DataSourceSingleThread
String daoFactoryName = BindDaoFactoryBuilder.generateDaoFactoryName(schema);
TypeSpec.Builder clazzBuilder = TypeSpec.classBuilder(DATA_SOURCE_SINGLE_THREAD_NAME)
.addSuperinterface(TypeUtility.typeName(daoFactoryName));
// _context field
clazzBuilder.addField(FieldSpec.builder(SQLContextInSessionImpl.class, "_context", Modifier.PRIVATE).build());
// constructor
MethodSpec.Builder constructorBuilder = MethodSpec.constructorBuilder();
constructorBuilder.addStatement("_context=new $T($L.this)", SQLContextInSessionImpl.class, dataSourceName);
// all dao
for (SQLiteDaoDefinition dao : schema.getCollection()) {
TypeName daoImplName = BindDaoBuilder.daoTypeName(dao);
// dao with external connections
{
String daoFieldName = extractDaoFieldNameForInternalDataSource(dao);
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("get" + dao.getName())
.addModifiers(Modifier.PUBLIC).addJavadoc("\nretrieve dao $L\n", dao.getName())
.returns(daoImplName);
methodBuilder.beginControlFlow("if ($L==null)", daoFieldName);
methodBuilder.addStatement("$L=new $T(this)", daoFieldName, daoImplName);
methodBuilder.endControlFlow();
methodBuilder.addStatement("return $L", daoFieldName);
clazzBuilder.addMethod(methodBuilder.build());
clazzBuilder.addField(FieldSpec.builder(daoImplName, daoFieldName, Modifier.PROTECTED).build());
}
}
// constructor
clazzBuilder.addMethod(constructorBuilder.build());
// public SQLContext context()
{
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("context").addModifiers(Modifier.PUBLIC)
.returns(SQLContext.class);
methodBuilder.addAnnotation(Override.class);
methodBuilder.addStatement("return _context");
clazzBuilder.addMethod(methodBuilder.build());
}
// onSessionOpened
{
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("onSessionOpened")
.addModifiers(Modifier.PROTECTED).returns(Void.TYPE);
if (schema.hasLiveData()) {
methodBuilder.addComment("support for live data");
methodBuilder.addStatement("_context.onSessionOpened()");
}
clazzBuilder.addMethod(methodBuilder.build());
}
// onSessionClear
{
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("onSessionClear")
.addModifiers(Modifier.PROTECTED).returns(Void.TYPE);
if (schema.hasLiveData()) {
methodBuilder.addComment("support for live data");
methodBuilder.addStatement("_context.onSessionOpened()");
}
clazzBuilder.addMethod(methodBuilder.build());
}
// onSessionClosed
{
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("onSessionClosed")
.addModifiers(Modifier.PROTECTED).returns(Void.TYPE);
if (schema.hasLiveData()) {
methodBuilder.addComment("support for live data");
methodBuilder.addStatement("$T daosWithEvents=_context.onSessionClosed()",
ParameterizedTypeName.get(Set.class, Integer.class));
for (SQLiteDaoDefinition dao : schema.getCollection()) {
String daoFieldName = extractDaoFieldNameForInternalDataSource(dao);
if (dao.hasLiveData()) {
methodBuilder.beginControlFlow("if ($L!=null && daosWithEvents.contains($L))", daoFieldName,
dao.daoUidName);
methodBuilder.addStatement("$L.invalidateLiveData()", daoFieldName);
methodBuilder.endControlFlow();
} else {
methodBuilder.addComment("$S has no live data", daoFieldName);
}
}
}
clazzBuilder.addMethod(methodBuilder.build());
}
// build method bindToThread
{
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("bindToThread").addModifiers(Modifier.PUBLIC)
.returns(TypeUtility.typeName(DATA_SOURCE_SINGLE_THREAD_NAME));
// methodBuilder.addStatement("_context.bindToThread()");
methodBuilder.addStatement("return this");
clazzBuilder.addMethod(methodBuilder.build());
// build single thread daoFactory used in transaction
classBuilder.addField(FieldSpec
.builder(TypeUtility.typeName(DATA_SOURCE_SINGLE_THREAD_NAME), "_daoFactorySingleThread",
Modifier.PROTECTED)
.addJavadoc("Used only in transactions (that can be executed one for time\n")
.initializer("new DataSourceSingleThread()").build());
}
classBuilder.addType(clazzBuilder.build());
}
/**
* Extract dao field name for internal data source.
*
* @param dao
* the dao
* @return the string
*/
private String extractDaoFieldNameForInternalDataSource(SQLiteDaoDefinition dao) {
return "_" + CaseFormat.UPPER_CAMEL.to(CaseFormat.LOWER_CAMEL, dao.getName());
}
/**
* Generate inner code for instance and build methods. Inspired by this
* link<
*
* @param schema
* the schema
* @param schemaName
* the schema name
* @param instance
* the instance
*/
private void generateInstanceOrBuild(SQLiteDatabaseSchema schema, String schemaName, boolean instance) {
// instance
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder(instance ? "getInstance" : "build")
.addModifiers(Modifier.PUBLIC, Modifier.STATIC).returns(className(schemaName));
if (!instance) {
methodBuilder.addParameter(DataSourceOptions.class, "options");
methodBuilder.addJavadoc(
"Build instance. This method can be used only one time, on the application start.
\n");
} else {
methodBuilder.addJavadoc("Retrieve instance.
\n");
}
methodBuilder.addStatement("$T result=instance", className(schemaName));
methodBuilder.beginControlFlow("if (result==null)");
methodBuilder.beginControlFlow("synchronized(mutex)");
methodBuilder.addStatement("result=instance");
methodBuilder.beginControlFlow("if (result==null)");
if (instance) {
methodBuilder.addCode("$T options=$T.builder()", DataSourceOptions.class, DataSourceOptions.class);
if (schema.configCursorFactoryClazz != null) {
methodBuilder.addCode("\n\t.cursorFactory(new $T())",
TypeUtility.className(schema.configCursorFactoryClazz));
}
if (schema.configDatabaseErrorHandlerClazz != null) {
methodBuilder.addCode("\n\t.errorHandler(new $T())",
TypeUtility.className(schema.configDatabaseErrorHandlerClazz));
}
if (schema.configDatabaseLifecycleHandlerClazz != null) {
methodBuilder.addCode("\n\t.databaseLifecycleHandler(new $T())",
TypeUtility.className(schema.configDatabaseLifecycleHandlerClazz));
}
if (schema.configPopulatorClazz != null) {
methodBuilder.addCode("\n\t.populator(new $T())", TypeUtility.className(schema.configPopulatorClazz));
}
methodBuilder.addCode("\n\t.inMemory($L)", schema.configInMemory);
methodBuilder.addCode("\n\t.log($L)", schema.configLogEnabled);
if (schema.configUpdateTasks != null && schema.configUpdateTasks.size() > 0) {
for (Pair task : schema.configUpdateTasks) {
methodBuilder.addCode("\n\t.addUpdateTask($L, new $T())", task.value0,
TypeUtility.className(task.value1));
}
}
methodBuilder.addCode("\n\t.build();\n", DataSourceOptions.class, DataSourceOptions.class);
}
methodBuilder.addStatement("instance=result=new $L(options)", schemaName);
generatePopulate(schema, methodBuilder, instance);
if (!instance) {
methodBuilder.nextControlFlow("else");
methodBuilder.addStatement("throw new $T($S)", KriptonRuntimeException.class,
"Datasource " + schemaName + " is already builded");
}
methodBuilder.endControlFlow();
methodBuilder.endControlFlow();
if (!instance) {
methodBuilder.nextControlFlow("else");
methodBuilder.addStatement("throw new $T($S)", KriptonRuntimeException.class,
"Datasource " + schemaName + " is already builded");
}
methodBuilder.endControlFlow();
methodBuilder.addCode("return result;\n");
classBuilder.addMethod(methodBuilder.build());
}
/**
* Generate populate.
*
* @param schema
* the schema
* @param methodBuilder
* the method builder
* @param instance
* the instance
*/
private void generatePopulate(SQLiteDatabaseSchema schema, MethodSpec.Builder methodBuilder, boolean instance) {
methodBuilder.beginControlFlow("try");
methodBuilder.addStatement("instance.openWritableDatabase()");
methodBuilder.addStatement("instance.close()");
if ((instance && schema.configPopulatorClazz != null) || (!instance)) {
methodBuilder.addComment("force database DDL run");
methodBuilder.beginControlFlow("if (options.populator!=null && instance.justCreated)");
methodBuilder.addComment("run populator only a time");
methodBuilder.addStatement("instance.justCreated=false");
methodBuilder.beginControlFlow("try");
methodBuilder.addStatement("$T currentDb=instance.openWritableDatabase()", SQLiteDatabase.class);
methodBuilder.addComment("run populator");
methodBuilder.addStatement("options.populator.execute(currentDb)");
methodBuilder.nextControlFlow("finally");
methodBuilder.addStatement("instance.close()");
methodBuilder.endControlFlow();
methodBuilder.endControlFlow();
}
methodBuilder.nextControlFlow("catch($T e)", Throwable.class);
methodBuilder.addStatement("$T.error(e.getMessage())", Logger.class);
methodBuilder.addStatement("e.printStackTrace()");
methodBuilder.endControlFlow();
}
/**
* Generate open.
*
* @param schemaName
* the schema name
*/
private void generateOpen(String schemaName) {
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("open")
.addModifiers(Modifier.PUBLIC, Modifier.STATIC).returns(className(schemaName));
methodBuilder.addJavadoc("Retrieve data source instance and open it.\n");
methodBuilder.addJavadoc("@return opened dataSource instance.\n");
methodBuilder.addStatement("$L instance=getInstance()", schemaName);
methodBuilder.addStatement("instance.openWritableDatabase()");
methodBuilder.addCode("return instance;\n");
classBuilder.addMethod(methodBuilder.build());
}
/**
* Generate open read only.
*
* @param schemaName
* the schema name
*/
private void generateOpenReadOnly(String schemaName) {
// instance
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("openReadOnly")
.addModifiers(Modifier.PUBLIC, Modifier.STATIC).returns(className(schemaName));
methodBuilder.addJavadoc("Retrieve data source instance and open it in read only mode.\n");
methodBuilder.addJavadoc("@return opened dataSource instance.\n");
methodBuilder.addStatement("$L instance=getInstance()", schemaName);
methodBuilder.addStatement("instance.openReadOnlyDatabase()");
methodBuilder.addCode("return instance;\n");
classBuilder.addMethod(methodBuilder.build());
}
/**
* Generate on create.
*
* @param schema
* the schema
* @param orderedEntities
* the ordered entities
* @return true, if successful
*/
private boolean generateOnCreate(SQLiteDatabaseSchema schema, List orderedEntities) {
boolean useForeignKey = false;
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("onCreate").addAnnotation(Override.class)
.addModifiers(Modifier.PUBLIC);
methodBuilder.addParameter(SQLiteDatabase.class, "database");
methodBuilder.addJavadoc("onCreate\n");
methodBuilder.addCode("// generate tables\n");
if (schema.isLogEnabled()) {
// generate log section - BEGIN
methodBuilder.addComment("log section BEGIN");
methodBuilder.beginControlFlow("if (this.logEnabled)");
methodBuilder.beginControlFlow("if (options.inMemory)");
methodBuilder.addStatement("$T.info(\"Create database in memory\")", Logger.class);
methodBuilder.nextControlFlow("else");
methodBuilder.addStatement("$T.info(\"Create database '%s' version %s\",this.name, this.version)",
Logger.class);
methodBuilder.endControlFlow();
// generate log section - END
methodBuilder.endControlFlow();
methodBuilder.addComment("log section END");
}
for (SQLiteEntity item : orderedEntities) {
if (schema.isLogEnabled()) {
// generate log section - BEGIN
methodBuilder.addComment("log section BEGIN");
methodBuilder.beginControlFlow("if (this.logEnabled)");
methodBuilder.addStatement("$T.info(\"DDL: %s\",$T.CREATE_TABLE_SQL)", Logger.class,
BindTableGenerator.tableClassName(null, item));
// generate log section - END
methodBuilder.endControlFlow();
methodBuilder.addComment("log section END");
}
methodBuilder.addStatement("database.execSQL($T.CREATE_TABLE_SQL)",
BindTableGenerator.tableClassName(null, item));
if (item.referedEntities.size() > 0) {
useForeignKey = true;
}
}
// use generated entities too
// if we have generated entities, we use foreign key for sure
if (schema.generatedEntities.size() > 0)
useForeignKey = true;
for (GeneratedTypeElement item : schema.generatedEntities) {
if (schema.isLogEnabled()) {
// generate log section - BEGIN
methodBuilder.addComment("log section BEGIN");
methodBuilder.beginControlFlow("if (this.logEnabled)");
methodBuilder.addStatement("$T.info(\"DDL: %s\",$T.CREATE_TABLE_SQL)", Logger.class,
TypeUtility.className(BindTableGenerator.getTableClassName(item.getQualifiedName())));
// generate log section - END
methodBuilder.endControlFlow();
methodBuilder.addComment("log section END");
}
methodBuilder.addStatement("database.execSQL($T.CREATE_TABLE_SQL)",
TypeUtility.className(BindTableGenerator.getTableClassName(item.getQualifiedName())));
}
methodBuilder.beginControlFlow("if (options.databaseLifecycleHandler != null)");
methodBuilder.addStatement("options.databaseLifecycleHandler.onCreate(database)");
methodBuilder.endControlFlow();
methodBuilder.addStatement("justCreated=true");
classBuilder.addMethod(methodBuilder.build());
return useForeignKey;
}
/**
* Generate on upgrade.
*
* @param schema
* the schema
* @param orderedEntities
* the ordered entities
*/
private void generateOnUpgrade(SQLiteDatabaseSchema schema, List orderedEntities) {
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("onUpgrade").addAnnotation(Override.class)
.addModifiers(Modifier.PUBLIC);
methodBuilder.addParameter(SQLiteDatabase.class, "database");
methodBuilder.addParameter(Integer.TYPE, "previousVersion");
methodBuilder.addParameter(Integer.TYPE, "currentVersion");
methodBuilder.addJavadoc("onUpgrade\n");
Collections.reverse(orderedEntities);
if (schema.isLogEnabled()) {
// generate log section - BEGIN
methodBuilder.addComment("log section BEGIN");
methodBuilder.beginControlFlow("if (this.logEnabled)");
methodBuilder.addStatement(
"$T.info(\"Update database '%s' from version %s to version %s\",this.name, previousVersion, currentVersion)",
Logger.class);
// generate log section - END
methodBuilder.endControlFlow();
methodBuilder.addComment("log section END");
}
methodBuilder.addComment("if we have a list of update task, try to execute them");
methodBuilder.beginControlFlow("if (options.updateTasks != null)");
methodBuilder.addStatement("$T<$T> tasks = buildTaskList(previousVersion, currentVersion)", List.class,
SQLiteUpdateTask.class);
methodBuilder.beginControlFlow("for ($T task : tasks)", SQLiteUpdateTask.class);
// generate log section - BEGIN
methodBuilder.addComment("log section BEGIN");
methodBuilder.beginControlFlow("if (this.logEnabled)");
methodBuilder.addStatement(
"$T.info(\"Begin update database from version %s to %s\", previousVersion, previousVersion+1)",
Logger.class);
// generate log section - END
methodBuilder.endControlFlow();
methodBuilder.addComment("log section END");
methodBuilder.addStatement("task.execute(database, previousVersion, previousVersion+1)");
// generate log section - BEGIN
methodBuilder.addComment("log section BEGIN");
methodBuilder.beginControlFlow("if (this.logEnabled)");
methodBuilder.addStatement(
"$T.info(\"End update database from version %s to %s\", previousVersion, previousVersion+1)",
Logger.class);
// generate log section - END
methodBuilder.endControlFlow();
methodBuilder.addComment("log section END");
methodBuilder.addStatement("previousVersion++");
methodBuilder.endControlFlow();
methodBuilder.nextControlFlow("else");
methodBuilder.addComment("drop all tables");
methodBuilder.addStatement("$T.dropTablesAndIndices(database)", SQLiteUpdateTaskHelper.class);
// reorder entities
Collections.reverse(orderedEntities);
methodBuilder.addCode("\n");
methodBuilder.addCode("// generate tables\n");
for (SQLiteEntity item : orderedEntities) {
if (schema.isLogEnabled()) {
// generate log section - BEGIN
methodBuilder.addComment("log section BEGIN");
methodBuilder.beginControlFlow("if (this.logEnabled)");
methodBuilder.addCode("$T.info(\"DDL: %s\",$T.CREATE_TABLE_SQL);\n", Logger.class,
BindTableGenerator.tableClassName(null, item));
// generate log section - END
methodBuilder.endControlFlow();
methodBuilder.addComment("log section END");
}
methodBuilder.addCode("database.execSQL($T.CREATE_TABLE_SQL);\n",
BindTableGenerator.tableClassName(null, item));
}
// use generated entities too
for (GeneratedTypeElement item : schema.generatedEntities) {
if (schema.isLogEnabled()) {
// generate log section - BEGIN
methodBuilder.addComment("log section BEGIN");
methodBuilder.beginControlFlow("if (this.logEnabled)");
methodBuilder.addStatement("$T.info(\"DDL: %s\",$T.CREATE_TABLE_SQL)", Logger.class,
TypeUtility.className(BindTableGenerator.getTableClassName(item.getQualifiedName())));
// generate log section - END
methodBuilder.endControlFlow();
methodBuilder.addComment("log section END");
}
methodBuilder.addStatement("database.execSQL($T.CREATE_TABLE_SQL)",
TypeUtility.className(BindTableGenerator.getTableClassName(item.getQualifiedName())));
}
methodBuilder.endControlFlow();
methodBuilder.beginControlFlow("if (options.databaseLifecycleHandler != null)");
methodBuilder.addStatement(
"options.databaseLifecycleHandler.onUpdate(database, previousVersion, currentVersion, true)");
methodBuilder.endControlFlow();
classBuilder.addMethod(methodBuilder.build());
}
/**
* Generate on configure.
*
* @param useForeignKey
* the use foreign key
*/
private void generateOnConfigure(boolean useForeignKey) {
// onConfigure
MethodSpec.Builder methodBuilder = MethodSpec.methodBuilder("onConfigure").addAnnotation(Override.class)
.addModifiers(Modifier.PUBLIC);
methodBuilder.addParameter(SQLiteDatabase.class, "database");
methodBuilder.addJavadoc("onConfigure\n");
methodBuilder.addCode("// configure database\n");
if (useForeignKey) {
methodBuilder.addStatement("database.setForeignKeyConstraintsEnabled(true)");
}
methodBuilder.beginControlFlow("if (options.databaseLifecycleHandler != null)");
methodBuilder.addStatement("options.databaseLifecycleHandler.onConfigure(database)");
methodBuilder.endControlFlow();
classBuilder.addMethod(methodBuilder.build());
}
/**
* Generate ordered entities list.
*
* @param schema
* the schema
* @return the list
*/
private List generateOrderedEntitiesList(SQLiteDatabaseSchema schema) {
List entities = schema.getEntitiesAsList();
Collections.sort(entities, new Comparator() {
@Override
public int compare(SQLiteEntity lhs, SQLiteEntity rhs) {
return lhs.getTableName().compareTo(rhs.getTableName());
}
});
List list = schema.getEntitiesAsList();
EntityUtility sorder = new EntityUtility(list) {
@Override
public Collection getDependencies(SQLiteEntity item) {
return item.referedEntities;
}
@Override
public void generateError(SQLiteEntity item) {
throw new CircularRelationshipException(item);
}
};
return sorder.order();
}
/**
* Generat execute transaction rx.
*
* @param dataSourceName
* the data source name
* @param daoFactory
* the dao factory
* @param rxType
* the rx type
*/
public void generatExecuteTransactionRx(ClassName dataSourceName, String daoFactory, RxType rxType) {
String parameterName = "transaction";
ParameterizedTypeName returnTypeName = ParameterizedTypeName.get(ClassName.get(rxType.clazz),
TypeVariableName.get("T"));
ParameterizedTypeName observableTypeName = ParameterizedTypeName.get(TypeUtility
.className(rxType.clazz.getPackage().getName(), rxType.clazz.getSimpleName() + "OnSubscribe"),
TypeVariableName.get("T"));
ParameterizedTypeName emitterTypeName = ParameterizedTypeName.get(
TypeUtility.className(rxType.clazz.getPackage().getName(), rxType.clazz.getSimpleName() + "Emitter"),
TypeVariableName.get("T"));
TypeSpec innerEmitter = TypeSpec.anonymousClassBuilder("").addSuperinterface(observableTypeName)
.addMethod(MethodSpec.methodBuilder("subscribe").addAnnotation(Override.class)
.addModifiers(Modifier.PUBLIC).addParameter(emitterTypeName, "emitter").returns(Void.TYPE)
.addStatement("boolean needToOpened=!$L.this.isOpenInWriteMode()", dataSourceName.simpleName())
.addStatement("boolean success=false").addCode("@SuppressWarnings(\"resource\")\n")
.addStatement("$T connection=needToOpened ? openWritableDatabase() : database()",
SQLiteDatabase.class)
// support for live data
.addStatement("$L currentDaoFactory=_daoFactorySingleThread.bindToThread()",
DATA_SOURCE_SINGLE_THREAD_NAME)
.addStatement("currentDaoFactory.onSessionOpened()")
.beginControlFlow("try").addStatement("connection.beginTransaction()")
.beginControlFlow(
"if (transaction != null && $T.$L==transaction.onExecute(currentDaoFactory, emitter))",
TransactionResult.class, TransactionResult.COMMIT)
.addStatement("connection.setTransactionSuccessful()").addStatement("success=true")
.endControlFlow().addStatement(rxType.onComplete ? "emitter.onComplete()" : "// no onComplete")
.nextControlFlow("catch($T e)", Throwable.class)
.addStatement("$T.error(e.getMessage())", Logger.class).addStatement("e.printStackTrace()")
.addStatement("emitter.onError(e)")
// support for live data
.addStatement("currentDaoFactory.onSessionClear()").nextControlFlow("finally")
.beginControlFlow("try").addStatement("connection.endTransaction()")
.nextControlFlow("catch($T e)", Throwable.class).endControlFlow()
.addCode("if (needToOpened) { close(); }\n")
// support for live data
.addCode(
"if (success) { currentDaoFactory.onSessionClosed(); } else { currentDaoFactory.onSessionClear(); }\n")
.endControlFlow().addStatement("return").build())
.build();
{
MethodSpec.Builder executeMethod = MethodSpec.methodBuilder("execute").addModifiers(Modifier.PUBLIC)
.addTypeVariable(TypeVariableName.get("T"))
.addParameter(
ParameterizedTypeName.get(TypeUtility.className(dataSourceName.toString(),
rxType.clazz.getSimpleName() + "Transaction"), TypeVariableName.get("T")),
parameterName, Modifier.FINAL)
.returns(returnTypeName);
executeMethod.addStatement("$T emitter=$L", observableTypeName, innerEmitter);
if (rxType == RxType.FLOWABLE) {
executeMethod.addStatement("$T result=$T.create(emitter, $T.BUFFER)", returnTypeName, rxType.clazz,
BackpressureStrategy.class);
} else {
executeMethod.addStatement("$T result=$T.create(emitter)", returnTypeName, rxType.clazz);
}
executeMethod.addStatement("if (globalSubscribeOn!=null) result.subscribeOn(globalSubscribeOn)");
executeMethod.addStatement("if (globalObserveOn!=null) result.observeOn(globalObserveOn)");
executeMethod.addStatement("return result");
classBuilder.addMethod(executeMethod.build());
}
}
/**
* Generat execute batch rx.
*
* @param dataSourceName
* the data source name
* @param daoFactory
* the dao factory
* @param rxType
* the rx type
*/
public void generatExecuteBatchRx(ClassName dataSourceName, String daoFactory, RxType rxType) {
String parameterName = "batch";
// @formatter:off
ParameterizedTypeName returnTypeName = ParameterizedTypeName.get(ClassName.get(rxType.clazz),
TypeVariableName.get("T"));
ParameterizedTypeName observableTypeName = ParameterizedTypeName.get(TypeUtility
.className(rxType.clazz.getPackage().getName(), rxType.clazz.getSimpleName() + "OnSubscribe"),
TypeVariableName.get("T"));
ParameterizedTypeName emitterTypeName = ParameterizedTypeName.get(
TypeUtility.className(rxType.clazz.getPackage().getName(), rxType.clazz.getSimpleName() + "Emitter"),
TypeVariableName.get("T"));
TypeSpec innerEmitter = TypeSpec.anonymousClassBuilder("").addSuperinterface(observableTypeName)
.addMethod(MethodSpec.methodBuilder("subscribe").addAnnotation(Override.class)
.addModifiers(Modifier.PUBLIC).addParameter(emitterTypeName, "emitter").returns(Void.TYPE)
.addStatement("boolean needToOpened=writeMode?!$L.this.isOpenInWriteMode(): !$L.this.isOpen()",
dataSourceName.simpleName(), dataSourceName.simpleName())
.addCode(
"if (needToOpened) { if (writeMode) { openWritableDatabase(); } else { openReadOnlyDatabase(); }}\n",
SQLiteDatabase.class)
// support for live data
.addStatement("$L currentDaoFactory=new DataSourceSingleThread()",
DATA_SOURCE_SINGLE_THREAD_NAME)
.addStatement("currentDaoFactory.onSessionOpened()")
.beginControlFlow("try")
.addCode("if ($L != null) { $L.onExecute(currentDaoFactory, emitter); }\n", parameterName,
parameterName)
.addStatement(rxType.onComplete ? "emitter.onComplete()" : "// no onComplete")
.nextControlFlow("catch($T e)", Throwable.class)
.addStatement("$T.error(e.getMessage())", Logger.class).addStatement("e.printStackTrace()")
.addStatement("emitter.onError(e)").nextControlFlow("finally")
// .addStatement("close()")
.addCode("if (needToOpened) { close(); }\n")
// support for live data
.addStatement("currentDaoFactory.onSessionClosed()").endControlFlow().addStatement("return")
.build())
.build();
{
MethodSpec.Builder executeMethod = MethodSpec.methodBuilder("executeBatch").addModifiers(Modifier.PUBLIC)
.addTypeVariable(TypeVariableName.get("T"))
.addParameter(
ParameterizedTypeName.get(TypeUtility.className(dataSourceName.toString(),
rxType.clazz.getSimpleName() + "Batch"), TypeVariableName.get("T")),
parameterName, Modifier.FINAL)
.addParameter(TypeName.BOOLEAN, "writeMode", Modifier.FINAL).returns(returnTypeName);
executeMethod.addStatement("$T emitter=$L", observableTypeName, innerEmitter);
if (rxType == RxType.FLOWABLE) {
executeMethod.addStatement("$T result=$T.create(emitter, $T.BUFFER)", returnTypeName, rxType.clazz,
BackpressureStrategy.class);
} else {
executeMethod.addStatement("$T result=$T.create(emitter)", returnTypeName, rxType.clazz);
}
executeMethod.addStatement("if (globalSubscribeOn!=null) result.subscribeOn(globalSubscribeOn)");
executeMethod.addStatement("if (globalObserveOn!=null) result.observeOn(globalObserveOn)");
executeMethod.addStatement("return result");
classBuilder.addMethod(executeMethod.build());
}
{
MethodSpec.Builder executeMethod = MethodSpec.methodBuilder("executeBatch").addModifiers(Modifier.PUBLIC)
.addTypeVariable(TypeVariableName.get("T"))
.addParameter(
ParameterizedTypeName.get(TypeUtility.className(dataSourceName.toString(),
rxType.clazz.getSimpleName() + "Batch"), TypeVariableName.get("T")),
parameterName, Modifier.FINAL)
.returns(returnTypeName);
executeMethod.addStatement("return executeBatch($L, false)", parameterName);
classBuilder.addMethod(executeMethod.build());
}
// @formatter:on
}
/**
*
* Generate RX observable support
*
* .
*
* @param dataSourceName
* the data source name
* @param daoFactory
* the dao factory
*/
public void generateRx(ClassName dataSourceName, String daoFactory) {
classBuilder.addField(FieldSpec.builder(Scheduler.class, "globalSubscribeOn", Modifier.PROTECTED).build());
classBuilder.addMethod(MethodSpec.methodBuilder("globalSubscribeOn").returns(dataSourceName)
.addParameter(Scheduler.class, "scheduler").addModifiers(Modifier.PUBLIC)
.addStatement("this.globalSubscribeOn=scheduler").addStatement("return this").build());
classBuilder.addField(FieldSpec.builder(Scheduler.class, "globalObserveOn", Modifier.PROTECTED).build());
classBuilder.addMethod(MethodSpec.methodBuilder("globalObserveOn").addParameter(Scheduler.class, "scheduler")
.returns(dataSourceName).addModifiers(Modifier.PUBLIC).addStatement("this.globalObserveOn=scheduler")
.addStatement("return this").build());
generateRxInterface(daoFactory, RxInterfaceType.BATCH, ObservableEmitter.class);
generateRxInterface(daoFactory, RxInterfaceType.TRANSACTION, ObservableEmitter.class);
generateRxInterface(daoFactory, RxInterfaceType.BATCH, SingleEmitter.class);
generateRxInterface(daoFactory, RxInterfaceType.TRANSACTION, SingleEmitter.class);
generateRxInterface(daoFactory, RxInterfaceType.BATCH, FlowableEmitter.class);
generateRxInterface(daoFactory, RxInterfaceType.TRANSACTION, FlowableEmitter.class);
generateRxInterface(daoFactory, RxInterfaceType.BATCH, MaybeEmitter.class);
generateRxInterface(daoFactory, RxInterfaceType.TRANSACTION, MaybeEmitter.class);
generatExecuteTransactionRx(dataSourceName, daoFactory, RxType.OBSERVABLE);
generatExecuteTransactionRx(dataSourceName, daoFactory, RxType.SINGLE);
generatExecuteTransactionRx(dataSourceName, daoFactory, RxType.FLOWABLE);
generatExecuteTransactionRx(dataSourceName, daoFactory, RxType.MAYBE);
generatExecuteBatchRx(dataSourceName, daoFactory, RxType.OBSERVABLE);
generatExecuteBatchRx(dataSourceName, daoFactory, RxType.SINGLE);
generatExecuteBatchRx(dataSourceName, daoFactory, RxType.FLOWABLE);
generatExecuteBatchRx(dataSourceName, daoFactory, RxType.MAYBE);
}
/**
* The Enum RxInterfaceType.
*/
private enum RxInterfaceType {
/** The batch. */
BATCH,
/** The transaction. */
TRANSACTION
}
/**
* The Enum RxType.
*/
private enum RxType {
/** The observable. */
OBSERVABLE(Observable.class, true),
/** The single. */
SINGLE(Single.class, false),
/** The maybe. */
MAYBE(Maybe.class, false),
/** The flowable. */
FLOWABLE(Flowable.class, true);
/**
* Instantiates a new rx type.
*
* @param clazz
* the clazz
* @param onComplete
* the on complete
*/
private RxType(Class clazz, boolean onComplete) {
this.clazz = clazz;
this.onComplete = onComplete;
}
/** The clazz. */
public Class clazz;
/** The on complete. */
public boolean onComplete;
}
/**
* Generate rx interface.
*
* @param daoFactory
* the dao factory
* @param interfaceType
* the interface type
* @param clazz
* the clazz
*/
private void generateRxInterface(String daoFactory, RxInterfaceType interfaceType, Class clazz) {
// create interfaces
{
ParameterizedTypeName parameterizedTypeName = ParameterizedTypeName.get(ClassName.get(clazz),
TypeVariableName.get("T"));
String preExecutorName = clazz.getSimpleName().replace("Emitter", "");
String postExecutorName = com.abubusoft.kripton.common.CaseFormat.UPPER_UNDERSCORE
.to(CaseFormat.UPPER_CAMEL, interfaceType.toString());
// @formatter:off
if (interfaceType == RxInterfaceType.BATCH) {
classBuilder
.addType(TypeSpec.interfaceBuilder(preExecutorName + postExecutorName)
.addModifiers(Modifier.PUBLIC).addTypeVariable(TypeVariableName.get("T"))
.addMethod(MethodSpec.methodBuilder("onExecute")
.addParameter(className(daoFactory), "daoFactory")
.addParameter(parameterizedTypeName, "emitter")
.addModifiers(Modifier.PUBLIC, Modifier.ABSTRACT).returns(Void.TYPE).build())
// .addModifiers(Modifier.PUBLIC,
// Modifier.ABSTRACT).returns(TransactionResult.class).build())
.build());
} else {
classBuilder
.addType(TypeSpec.interfaceBuilder(preExecutorName + postExecutorName)
.addModifiers(Modifier.PUBLIC).addTypeVariable(TypeVariableName.get("T"))
.addMethod(MethodSpec.methodBuilder("onExecute")
.addParameter(className(daoFactory), "daoFactory")
.addParameter(parameterizedTypeName, "emitter")
// .addModifiers(Modifier.PUBLIC,
// Modifier.ABSTRACT).returns(Void.TYPE).build())
.addModifiers(Modifier.PUBLIC, Modifier.ABSTRACT)
.returns(TransactionResult.class).build())
.build());
}
// @formatter:on
}
}
/**
*
* Generate transaction an execute method
*
* .
*
* @param daoFactory
* the dao factory
*/
public void generateMethodExecuteTransaction(String daoFactory) {
// create interface
String transationExecutorName = "Transaction";
// @formatter:off
ParameterizedTypeName parameterizedTypeName = ParameterizedTypeName.get(className(AbstractExecutable.class),
className(daoFactory));
classBuilder.addType(TypeSpec.interfaceBuilder(transationExecutorName).addModifiers(Modifier.PUBLIC)
.addSuperinterface(parameterizedTypeName).addJavadoc("Rapresents transational operation.\n")
.addMethod(MethodSpec.methodBuilder("onExecute").addParameter(className(daoFactory), "daoFactory")
.addJavadoc(
"Execute transation. Method need to return {@link TransactionResult#COMMIT} to commit results\nor {@link TransactionResult#ROLLBACK} to rollback.")
.addJavadoc("\nIf exception is thrown, a rollback will be done.")
.addJavadoc("\n\n@param daoFactory\n@return\n@throws Throwable\n")
.addModifiers(Modifier.PUBLIC, Modifier.ABSTRACT).returns(TransactionResult.class).build())
.build());
// @formatter:on
{
MethodSpec.Builder executeMethod = MethodSpec.methodBuilder("execute").addModifiers(Modifier.PUBLIC)
.addParameter(className(transationExecutorName), "transaction");
// generate javadoc
executeMethod.addJavadoc(
"Executes a transaction. This method is thread safe to avoid concurrent problems. The "
+ "drawback is only one transaction at time can be executed. The database will be open in write mode. This method uses default error listener to intercept errors.
\n");
executeMethod.addJavadoc("\n");
executeMethod.addJavadoc("@param transaction\n\ttransaction to execute\n");
executeMethod.addStatement("execute(transaction, onErrorListener)");
classBuilder.addMethod(executeMethod.build());
}
{
MethodSpec.Builder executeMethod = MethodSpec.methodBuilder("execute").addModifiers(Modifier.PUBLIC)
.addParameter(className(transationExecutorName), "transaction")
.addParameter(className(OnErrorListener.class), "onErrorListener");
executeMethod.addStatement("boolean needToOpened=!this.isOpenInWriteMode()");
executeMethod.addStatement("boolean success=false");
executeMethod.addCode("@SuppressWarnings(\"resource\")\n");
executeMethod.addStatement("$T connection=needToOpened ? openWritableDatabase() : database()",
SQLiteDatabase.class);
// support for live data
executeMethod.addStatement("$L currentDaoFactory=_daoFactorySingleThread.bindToThread()",
DATA_SOURCE_SINGLE_THREAD_NAME);
executeMethod.addStatement("currentDaoFactory.onSessionOpened()");
executeMethod.beginControlFlow("try");
executeMethod.addCode("connection.beginTransaction();\n");
executeMethod.beginControlFlow(
"if (transaction!=null && $T.$L == transaction.onExecute(currentDaoFactory))",
TransactionResult.class, TransactionResult.COMMIT);
executeMethod.addStatement("connection.setTransactionSuccessful()");
// support for live data
executeMethod.addStatement("success=true");
executeMethod.endControlFlow();
executeMethod.nextControlFlow("catch($T e)", Throwable.class);
executeMethod.addStatement("$T.error(e.getMessage())", Logger.class);
executeMethod.addStatement("e.printStackTrace()");
executeMethod.addStatement("if (onErrorListener!=null) onErrorListener.onError(e)");
executeMethod.nextControlFlow("finally");
executeMethod.beginControlFlow("try");
executeMethod.addStatement("connection.endTransaction()");
executeMethod.nextControlFlow("catch ($T e)", Throwable.class);
executeMethod.addStatement("$T.warn(\"error closing transaction %s\", e.getMessage())", Logger.class);
executeMethod.endControlFlow();
executeMethod.addCode("if (needToOpened) { close(); }\n");
// support for live data
executeMethod.addCode(
"if (success) { currentDaoFactory.onSessionClosed(); } else { currentDaoFactory.onSessionClear(); }\n");
executeMethod.endControlFlow();
// generate javadoc
executeMethod.addJavadoc(
"Executes a transaction. This method is thread safe to avoid concurrent problems. The "
+ "drawback is only one transaction at time can be executed. The database will be open in write mode.
\n");
executeMethod.addJavadoc("\n");
executeMethod.addJavadoc("@param transaction\n\ttransaction to execute\n");
executeMethod.addJavadoc("@param onErrorListener\n\terror listener\n");
classBuilder.addMethod(executeMethod.build());
}
}
/**
*
* Generate transaction an execute method
*
* .
*
* @param daoFactory
* the dao factory
*/
public void generateMethodExecuteBatch(String daoFactory) {
// create interface
String transationExecutorName = "Batch";
// @formatter:off
// ParameterizedTypeName parameterizedTypeName =
// ParameterizedTypeName.get(className(AbstractExecutable.class),
// className(daoFactory));
classBuilder.addType(TypeSpec.interfaceBuilder(transationExecutorName).addModifiers(Modifier.PUBLIC)
.addTypeVariable(TypeVariableName.get("T"))
// .addSuperinterface(parameterizedTypeName)
.addJavadoc("Rapresents batch operation.\n")
.addMethod(MethodSpec.methodBuilder("onExecute").addJavadoc("Execute batch operations.")
.addJavadoc("\n\n@param daoFactory\n@throws Throwable\n")
.addParameter(className(daoFactory), "daoFactory")
.addModifiers(Modifier.PUBLIC, Modifier.ABSTRACT).returns(TypeVariableName.get("T")).build())
.build());
// @formatter:on
// @formatter:on
{
// execute read/write mode
MethodSpec.Builder executeMethod = MethodSpec.methodBuilder("executeBatch")
// generate javadoc
.addTypeVariable(TypeVariableName.get("T"))
.addJavadoc(
"Executes a batch opening a read only connection. This method is thread safe to avoid concurrent problems.
\n\n")
.addJavadoc("@param commands\n\tbatch to execute\n").addModifiers(Modifier.PUBLIC)
.addParameter(
ParameterizedTypeName.get(className(transationExecutorName), TypeVariableName.get("T")),
"commands")
.returns(TypeVariableName.get("T"));
executeMethod.addStatement("return executeBatch(commands, false)");
classBuilder.addMethod(executeMethod.build());
}
{
// execute read/write mode
MethodSpec.Builder executeMethod = MethodSpec.methodBuilder("executeBatch")
// generate javadoc
.addJavadoc(
"Executes a batch. This method is thread safe to avoid concurrent problems. The "
+ "drawback is only one transaction at time can be executed. if writeMode is set to false, multiple batch operations is allowed.
\n")
.addTypeVariable(TypeVariableName.get("T")).addJavadoc("\n")
.addJavadoc("@param commands\n\tbatch to execute\n")
.addJavadoc(
"@param writeMode\n\ttrue to open connection in write mode, false to open connection in read only mode\n")
.addModifiers(Modifier.PUBLIC)
.addParameter(
ParameterizedTypeName.get(className(transationExecutorName), TypeVariableName.get("T")),
"commands")
.addParameter(Boolean.TYPE, "writeMode").returns(TypeVariableName.get("T"));
executeMethod.addStatement("boolean needToOpened=writeMode?!this.isOpenInWriteMode(): !this.isOpen()");
executeMethod.addCode(
"if (needToOpened) { if (writeMode) { openWritableDatabase(); } else { openReadOnlyDatabase(); }}\n",
SQLiteDatabase.class);
// support for live data
executeMethod.addStatement("$L currentDaoFactory=new DataSourceSingleThread()",
DATA_SOURCE_SINGLE_THREAD_NAME);
executeMethod.addStatement("currentDaoFactory.onSessionOpened()");
executeMethod.beginControlFlow("try");
executeMethod.beginControlFlow("if (commands!=null)");
executeMethod.addStatement("return commands.onExecute(currentDaoFactory)");
executeMethod.endControlFlow();
executeMethod.nextControlFlow("catch($T e)", Throwable.class);
executeMethod.addStatement("$T.error(e.getMessage())", Logger.class);
executeMethod.addStatement("e.printStackTrace()");
executeMethod.addStatement("throw(e)");
executeMethod.nextControlFlow("finally");
executeMethod.addCode("if (needToOpened) { close(); }\n");
// support for live data
executeMethod.addStatement("currentDaoFactory.onSessionClosed()");
executeMethod.endControlFlow();
executeMethod.addStatement("return null");
classBuilder.addMethod(executeMethod.build());
}
}
}