org.mustbe.consulo.ikvm.psi.stubBuilding.JavaClassStubBuilder.java Source code

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Here is the source code for org.mustbe.consulo.ikvm.psi.stubBuilding.JavaClassStubBuilder.java

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/*
 * Copyright 2013-2014 must-be.org
 *
 * 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 org.mustbe.consulo.ikvm.psi.stubBuilding;

import java.util.ArrayList;
import java.util.List;

import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.mustbe.consulo.ikvm.psi.stubBuilding.psi.LightJavaClassBuilder;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.Opcodes;
import com.intellij.openapi.util.text.StringUtil;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiField;
import com.intellij.psi.PsiMethod;
import com.intellij.util.ArrayUtil;

/**
 * @author VISTALL
 * @since 06.05.14
 */
public class JavaClassStubBuilder extends BaseStubBuilder<PsiClass> {
    private final List<BaseStubBuilder> myMembers = new ArrayList<BaseStubBuilder>();
    private final String myPackage;

    public JavaClassStubBuilder(@Nullable String packageName, @NotNull String name, @NotNull PsiElement navTarget) {
        super(navTarget, name);
        myPackage = packageName;
    }

    @NotNull
    public JavaFieldStubBuilder field(@NotNull String name, PsiElement navTarget) {
        JavaFieldStubBuilder fieldStubBuilder = new JavaFieldStubBuilder(navTarget, name);
        myMembers.add(fieldStubBuilder);
        return fieldStubBuilder;
    }

    public JavaMethodStubBuilder method(@NotNull String name, PsiElement navTarget) {
        JavaMethodStubBuilder methodStubBuilder = new JavaMethodStubBuilder(navTarget, name);
        myMembers.add(methodStubBuilder);
        return methodStubBuilder;
    }

    @NotNull
    @Override
    public PsiClass buildToPsi(@Nullable PsiElement parent) {
        LightJavaClassBuilder builder = new LightJavaClassBuilder(myNavTarget.getProject());
        builder.withPackage(normalize(myPackage));
        builder.withName(normalize(myName));
        builder.withModifiers(ArrayUtil.toStringArray(myModifiers));
        builder.setNavigationElement(myNavTarget);

        List<PsiField> fields = new ArrayList<PsiField>(5);
        List<PsiMethod> methods = new ArrayList<PsiMethod>(5);
        for (BaseStubBuilder member : myMembers) {
            if (member instanceof JavaFieldStubBuilder) {
                fields.add((PsiField) member.buildToPsi(builder));
            } else if (member instanceof JavaMethodStubBuilder) {
                methods.add((PsiMethod) member.buildToPsi(builder));
            }
        }
        builder.withFields(fields);
        builder.withMethods(methods);

        return builder;
    }

    @Override
    public void buildToText(StringBuilder builder) {
        if (!StringUtil.isEmpty(myPackage)) {
            builder.append("package ").append(normalize(myPackage)).append(";\n");
        }

        for (String modifier : myModifiers) {
            builder.append(modifier).append(" ");
        }

        builder.append("class ").append(normalize(myName)).append(" ");

        builder.append("{\n");
        for (BaseStubBuilder member : myMembers) {
            builder.append("\t");
            member.buildToText(builder);
            builder.append("\n");
        }
        builder.append("}");
    }

    public byte[] buildToBytecode() {
        ClassWriter classWriter = new ClassWriter(Opcodes.V1_6);
        buildToBytecode(classWriter);
        classWriter.visitEnd();
        return classWriter.toByteArray();
    }

    @Override
    public void buildToBytecode(ClassWriter parent) {
        String name = null;
        if (StringUtil.isEmpty(myPackage)) {
            name = myName;
        } else {
            name = myPackage.replace(".", "/") + "/" + myName;
        }
        parent.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC, name, null, null, null);

        for (BaseStubBuilder member : myMembers) {
            member.buildToBytecode(parent);
        }
    }

    public String getQualifiedName() {
        String name = null;
        if (StringUtil.isEmpty(myPackage)) {
            name = myName;
        } else {
            name = myPackage + "." + myName;
        }
        return name;
    }
}