com.speedment.common.codegen.internal.java.view.InterfaceMethodView Maven / Gradle / Ivy

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A Speedment bundle that shades all dependencies into one jar. This is useful when deploying an application on a server.

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/*
 *
 * Copyright (c) 2006-2019, 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.common.codegen.internal.java.view;

import com.speedment.common.codegen.Generator;
import com.speedment.common.codegen.Transform;
import com.speedment.common.codegen.internal.java.view.trait.*;
import com.speedment.common.codegen.model.InterfaceMethod;

import java.util.Optional;

import static com.speedment.common.codegen.model.modifier.Modifier.DEFAULT;
import static com.speedment.common.codegen.model.modifier.Modifier.STATIC;
import static com.speedment.common.codegen.util.Formatting.nl;
import static com.speedment.common.codegen.util.Formatting.tab;
import static java.util.Objects.requireNonNull;

/**
 * Transforms from an {@link InterfaceMethod} to java code.
 * 
 * @author Emil Forslund
 */
public final class InterfaceMethodView 
implements Transform,
        HasModifiersView,
        HasNameView,
        HasTypeView,
        HasThrowsView,
        HasGenericsView,
        HasFieldsView,
        HasJavadocView, 
        HasAnnotationUsageView,
        HasCodeView {

	@Override
	public Optional transform(Generator gen, InterfaceMethod model) {
        requireNonNull(gen);
        requireNonNull(model);
        
        final Optional body = Optional.of(renderCode(gen, model))
            .filter(s -> model.getModifiers().contains(DEFAULT)
                      || model.getModifiers().contains(STATIC)
            );

        final String spacing = body.map($ -> " ").orElse("");

        return Optional.of(
            renderJavadoc(gen, model) +
            renderAnnotations(gen, model) +
			renderModifiers(gen, model, STATIC, DEFAULT) +
            renderGenerics(gen, model) +
            renderType(gen, model) +
            renderName(gen, model) + ((model.getFields().size() > 3) ? "(" + nl() : "(") +
            renderFields(gen, model) + ")" + spacing +
            renderThrows(gen, model) + 
            body.orElse(";")
        );
	}

    @Override
    public String fieldSeparator(InterfaceMethod model) {
        if (model.getFields().size() > 3) {
            return "," + nl() + tab() + tab();
        } else return ", ";
    }

    @Override
    public String throwsSuffix(InterfaceMethod model) {
        return (model.getModifiers().contains(DEFAULT)
             || model.getModifiers().contains(STATIC))
            ? " " : "";
    }

    @Override
    public boolean useTripleDot() {
        return true;
    }
}