com.android.tools.idea.gradle.project.LibraryAttachments.java Source code

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Here is the source code for com.android.tools.idea.gradle.project.LibraryAttachments.java

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/*
 * 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.project;

import com.google.common.collect.*;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.roots.JavadocOrderRootType;
import com.intellij.openapi.roots.OrderRootType;
import com.intellij.openapi.roots.impl.libraries.ProjectLibraryTable;
import com.intellij.openapi.roots.libraries.Library;
import com.intellij.openapi.roots.libraries.LibraryTable;
import com.intellij.openapi.util.Key;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;

import static com.intellij.openapi.roots.OrderRootType.SOURCES;

public class LibraryAttachments {
    @NotNull
    static final List<OrderRootType> SUPPORTED_TYPES = Lists.newArrayList(SOURCES,
            JavadocOrderRootType.getInstance());

    private static final Key<LibraryAttachments> LIBRARY_ATTACHMENTS = Key.create("project.library.attachments");

    @NotNull
    private final Project myProject;
    @NotNull
    private final Map<OrderRootType, Multimap<String, String>> myAttachementsByType;

    @Nullable
    public static LibraryAttachments getStoredLibraryAttachments(@NotNull Project project) {
        return project.getUserData(LIBRARY_ATTACHMENTS);
    }

    public static void removeLibrariesAndStoreAttachments(@NotNull Project project) {
        LibraryTable libraryTable = ProjectLibraryTable.getInstance(project);
        LibraryTable.ModifiableModel model = libraryTable.getModifiableModel();
        try {
            Map<OrderRootType, Multimap<String, String>> attachmentsByType = Maps.newHashMap();

            for (Library library : model.getLibraries()) {
                for (OrderRootType type : SUPPORTED_TYPES) {
                    Multimap<String, String> attachments = ArrayListMultimap.create();
                    String name = library.getName();
                    if (name != null) {
                        String[] urls = library.getUrls(type);
                        for (String url : urls) {
                            attachments.put(name, url);
                        }
                    }
                    attachmentsByType.put(type, attachments);
                }
                model.removeLibrary(library);
            }
            project.putUserData(LIBRARY_ATTACHMENTS, new LibraryAttachments(project, attachmentsByType));
        } finally {
            model.commit();
        }
    }

    private LibraryAttachments(@NotNull Project project,
            @NotNull Map<OrderRootType, Multimap<String, String>> attachementsByType) {
        myProject = project;
        myAttachementsByType = attachementsByType;
    }

    public void addUrlsTo(@NotNull Library.ModifiableModel libraryModel) {
        for (OrderRootType type : myAttachementsByType.keySet()) {
            Multimap<String, String> attachmentsByLibraryName = myAttachementsByType.get(type);
            if (attachmentsByLibraryName != null) {
                Collection<String> attachments = attachmentsByLibraryName.get(libraryModel.getName());
                addUrlsToLibrary(type, libraryModel, attachments);
            }
        }
    }

    private static void addUrlsToLibrary(@NotNull OrderRootType type, @NotNull Library.ModifiableModel libraryModel,
            @NotNull Collection<String> urls) {
        if (!urls.isEmpty()) {
            Set<String> existing = Sets.newHashSet(libraryModel.getUrls(type));
            for (String url : urls) {
                if (!existing.contains(url)) {
                    libraryModel.addRoot(url, type);
                }
            }
        }
    }

    public void removeFromProject() {
        myProject.putUserData(LIBRARY_ATTACHMENTS, null);
    }
}