com.android.tools.idea.gradle.dsl.parser.elements.GradleDslExpressionMap.java Source code

Introduction

Here is the source code for com.android.tools.idea.gradle.dsl.parser.elements.GradleDslExpressionMap.java

Source

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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.android.tools.idea.gradle.dsl.parser.elements;

import com.android.tools.idea.gradle.dsl.model.values.GradleNotNullValue;
import com.google.common.collect.Maps;
import com.intellij.psi.PsiElement;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElement;
import org.jetbrains.plugins.groovy.lang.psi.GroovyPsiElementFactory;
import org.jetbrains.plugins.groovy.lang.psi.api.auxiliary.GrListOrMap;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.arguments.GrArgumentList;
import org.jetbrains.plugins.groovy.lang.psi.api.statements.expressions.GrApplicationStatement;

import java.util.Map;

/**
 * Represents an element which consists of a map from properties of type {@link String} and values of type {@link GradleDslExpression}.
 */
public final class GradleDslExpressionMap extends GradlePropertiesDslElement {
    public GradleDslExpressionMap(@Nullable GradleDslElement parent, @NotNull String name) {
        super(parent, null, name);
    }

    public GradleDslExpressionMap(@Nullable GradleDslElement parent, @NotNull GroovyPsiElement psiElement,
            @NotNull String name) {
        super(parent, psiElement, name);
    }

    public void addNewLiteral(String key, Object value) {
        GradleDslElement propertyElement = getPropertyElement(key);
        if (propertyElement instanceof GradleDslLiteral) {
            ((GradleDslLiteral) propertyElement).setValue(value);
            return;
        }
        GradleDslLiteral gradleDslLiteral = new GradleDslLiteral(this, key);
        setNewElement(key, gradleDslLiteral);
        gradleDslLiteral.setValue(value);
    }

    /**
     * Returns the map from properties of the type {@link String} and values of the type {@code clazz}.
     *
     * <p>Returns an empty map when the given there are no values of type {@code clazz}.
     */
    @NotNull
    public <V> Map<String, GradleNotNullValue<V>> getValues(@NotNull Class<V> clazz) {
        Map<String, GradleNotNullValue<V>> result = Maps.newLinkedHashMap();
        for (Map.Entry<String, GradleDslElement> entry : getPropertyElements().entrySet()) {
            GradleDslElement propertyElement = entry.getValue();
            if (propertyElement instanceof GradleDslExpression) {
                V value = ((GradleDslExpression) propertyElement).getValue(clazz);
                if (value != null) {
                    result.put(entry.getKey(), new GradleNotNullValue<>(propertyElement, value));
                }
            }
        }
        return result;
    }

    @Override
    @Nullable
    public GroovyPsiElement create() {
        GroovyPsiElement psiElement = super.create();
        if (psiElement == null) {
            return null;
        }

        if (psiElement instanceof GrListOrMap || psiElement instanceof GrArgumentList) {
            return psiElement;
        }

        if (psiElement instanceof GrApplicationStatement) {
            GroovyPsiElementFactory factory = GroovyPsiElementFactory.getInstance(psiElement.getProject());
            GrArgumentList argumentList = factory.createArgumentListFromText("xyz");
            argumentList.getFirstChild().delete(); // Workaround to get an empty argument list.
            PsiElement added = psiElement.addAfter(argumentList, psiElement.getLastChild());
            if (added instanceof GrArgumentList) {
                GrArgumentList addedArgumentList = (GrArgumentList) added;
                setPsiElement(addedArgumentList);
                return addedArgumentList;
            }
        }

        return null;
    }
}