com.speedment.generator.standard.internal.util.GenerateMethodBodyUtil Maven / Gradle / Ivy
/**
*
* Copyright (c) 2006-2017, Speedment, Inc. All Rights Reserved.
*
* 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.speedment.generator.standard.internal.util;
import static com.speedment.common.codegen.constant.DefaultAnnotationUsage.OVERRIDE;
import com.speedment.common.codegen.constant.DefaultType;
import com.speedment.common.codegen.constant.SimpleParameterizedType;
import com.speedment.common.codegen.model.File;
import com.speedment.common.codegen.model.Import;
import com.speedment.common.codegen.model.Method;
import static com.speedment.common.codegen.util.Formatting.*;
import static com.speedment.generator.standard.manager.GeneratedManagerImplTranslator.ENTITY_CREATE_METHOD_NAME;
import com.speedment.generator.translator.TranslatorSupport;
import com.speedment.runtime.config.Column;
import com.speedment.runtime.config.Table;
import com.speedment.runtime.config.trait.HasEnabled;
import com.speedment.runtime.core.exception.SpeedmentException;
import java.sql.SQLException;
import java.util.LinkedList;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Supplier;
import static java.util.stream.Collectors.joining;
import java.util.stream.Stream;
/**
*
* @author Emil Forslund
* @since 3.0.0
*/
public final class GenerateMethodBodyUtil {
public static Method generateFields(TranslatorSupport support, File file, String methodName, Supplier> columnsSupplier) {
return Method.of(methodName,
DefaultType.stream(
SimpleParameterizedType.create(
com.speedment.runtime.field.Field.class,
support.entityType()
)
)
)
.public_().add(OVERRIDE)
.add(generateFieldsBody(support, file, columnsSupplier));
}
public static String[] generateFieldsBody(TranslatorSupport support, File file, Supplier> columnsSupplier) {
file.add(Import.of(Stream.class));
final List rows = new LinkedList<>();
rows.add("return Stream.of(");
rows.add(indent(columnsSupplier.get()
.filter(HasEnabled::isEnabled)
.map(Column::getJavaName)
.map(support.namer()::javaStaticFieldName)
.map(field -> support.typeName() + "." + field)
.collect(joining("," + nl()))
));
rows.add(");");
return rows.toArray(new String[rows.size()]);
}
public static Method generateNewEmptyEntity(TranslatorSupport support, File file, Supplier> columnsSupplier) {
return Method.of(ENTITY_CREATE_METHOD_NAME, support.entityType())
.public_().add(OVERRIDE)
.add(generateNewEmptyEntityBody(support, file, columnsSupplier));
}
public static String[] generateNewEmptyEntityBody(TranslatorSupport support, File file, Supplier> columnsSupplier) {
file.add(Import.of(support.entityImplType()));
return new String[] {
"return new " + support.entityImplName() + "();"
};
}
@FunctionalInterface
public interface ReadFromResultSet {
String readFromResultSet(File file, Column c, AtomicInteger position);
}
public static String[] generateApplyResultSetBody(ReadFromResultSet readFromResultSet, TranslatorSupport support, File file, Supplier> columnsSupplier) {
file.add(Import.of(SQLException.class));
final List rows = new LinkedList<>();
rows.add("final " + support.entityName() + " entity = createEntity();");
final Stream.Builder streamBuilder = Stream.builder();
final AtomicInteger position = new AtomicInteger(1);
columnsSupplier.get()
.filter(HasEnabled::isEnabled)
.forEachOrdered(c ->
streamBuilder.add("entity.set" + support.namer().javaTypeName(c.getJavaName()) + "(\t " + readFromResultSet.readFromResultSet(file, c, position) + " \t);")
);
rows.add(
"try " + block(streamBuilder.build()) +
" catch (final " + SQLException.class.getSimpleName() + " sqle) " + block(
"throw new " + SpeedmentException.class.getSimpleName() + "(sqle);"
));
rows.add("return entity;");
return rows.toArray(new String[rows.size()]);
}
private GenerateMethodBodyUtil() {
throw new UnsupportedOperationException();
}
}
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