com.intellij.projectImport.ProjectOpenProcessorBase.java Source code

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Here is the source code for com.intellij.projectImport.ProjectOpenProcessorBase.java

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/*
 * Copyright 2000-2012 JetBrains s.r.o.
 *
 * 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.
 */

/*
 * User: anna
 * Date: 12-Jul-2007
 */
package com.intellij.projectImport;

import com.intellij.CommonBundle;
import com.intellij.ide.IdeBundle;
import com.intellij.ide.impl.ProjectUtil;
import com.intellij.ide.impl.util.NewProjectUtilPlatform;
import com.intellij.ide.util.projectWizard.WizardContext;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.project.ex.ProjectManagerEx;
import com.intellij.openapi.roots.ui.configuration.ModulesProvider;
import com.intellij.openapi.ui.Messages;
import com.intellij.openapi.util.InvalidDataException;
import com.intellij.openapi.util.io.FileUtil;
import com.intellij.openapi.vfs.VfsUtil;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.vfs.newvfs.NewVirtualFile;
import org.jdom.JDOMException;
import org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

import javax.swing.*;
import java.io.File;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collection;

public abstract class ProjectOpenProcessorBase<T extends ProjectImportBuilder> extends ProjectOpenProcessor {

    private final T myBuilder;

    protected ProjectOpenProcessorBase(@NotNull final T builder) {
        myBuilder = builder;
    }

    @Override
    public String getName() {
        return getBuilder().getName();
    }

    @Override
    @Nullable
    public Icon getIcon() {
        return getBuilder().getIcon();
    }

    @Override
    public boolean canOpenProject(final VirtualFile file) {
        final String[] supported = getSupportedExtensions();
        if (supported != null) {
            if (file.isDirectory()) {
                for (VirtualFile child : getFileChildren(file)) {
                    if (canOpenFile(child, supported))
                        return true;
                }
                return false;
            }
            if (canOpenFile(file, supported))
                return true;
        }
        return false;
    }

    private static Collection<VirtualFile> getFileChildren(VirtualFile file) {
        if (file instanceof NewVirtualFile) {
            return ((NewVirtualFile) file).getCachedChildren();
        }

        return Arrays.asList(file.getChildren());
    }

    protected static boolean canOpenFile(VirtualFile file, String[] supported) {
        final String fileName = file.getName();
        for (String name : supported) {
            if (fileName.equals(name)) {
                return true;
            }
        }
        return false;
    }

    protected boolean doQuickImport(VirtualFile file, final WizardContext wizardContext) {
        return false;
    }

    @NotNull
    public T getBuilder() {
        return myBuilder;
    }

    @Nullable
    public abstract String[] getSupportedExtensions();

    @Override
    @Nullable
    public Project doOpenProject(@NotNull VirtualFile virtualFile, Project projectToClose,
            boolean forceOpenInNewFrame) {
        try {
            getBuilder().setUpdate(false);
            final WizardContext wizardContext = new WizardContext(null);
            if (virtualFile.isDirectory()) {
                final String[] supported = getSupportedExtensions();
                for (VirtualFile file : getFileChildren(virtualFile)) {
                    if (canOpenFile(file, supported)) {
                        virtualFile = file;
                        break;
                    }
                }
            }

            wizardContext.setProjectFileDirectory(virtualFile.getParent().getPath());

            if (!doQuickImport(virtualFile, wizardContext))
                return null;

            if (wizardContext.getProjectName() == null) {
                wizardContext.setProjectName(IdeBundle.message("project.import.default.name.dotIdea", getName()));
            }

            final String dotIdeaFilePath = wizardContext.getProjectFileDirectory() + File.separator
                    + Project.DIRECTORY_STORE_FOLDER;

            File dotIdeaFile = new File(dotIdeaFilePath);

            String pathToOpen = dotIdeaFile.getParent();

            boolean shouldOpenExisting = false;
            if (!ApplicationManager.getApplication().isHeadlessEnvironment() && dotIdeaFile.exists()) {
                String existingName = "an existing project";

                int result = Messages.showYesNoCancelDialog(projectToClose,
                        IdeBundle.message("project.import.open.existing", existingName, pathToOpen,
                                virtualFile.getName()),
                        IdeBundle.message("title.open.project"),
                        IdeBundle.message("project.import.open.existing.openExisting"),
                        IdeBundle.message("project.import.open.existing.reimport"),
                        CommonBundle.message("button.cancel"), Messages.getQuestionIcon());
                if (result == Messages.CANCEL)
                    return null;
                shouldOpenExisting = result == Messages.OK;
            }

            final Project projectToOpen;
            if (shouldOpenExisting) {
                try {
                    projectToOpen = ProjectManagerEx.getInstanceEx().loadProject(pathToOpen);
                } catch (IOException e) {
                    return null;
                } catch (JDOMException e) {
                    return null;
                } catch (InvalidDataException e) {
                    return null;
                }
            } else {
                projectToOpen = ProjectManagerEx.getInstanceEx().newProject(wizardContext.getProjectName(),
                        pathToOpen, true, false);

                if (projectToOpen == null || !getBuilder().validate(projectToClose, projectToOpen)) {
                    return null;
                }

                projectToOpen.save();

                getBuilder().commit(projectToOpen, null, ModulesProvider.EMPTY_MODULES_PROVIDER);
            }

            if (!forceOpenInNewFrame) {
                NewProjectUtilPlatform.closePreviousProject(projectToClose);
            }
            ProjectUtil.updateLastProjectLocation(pathToOpen);
            ProjectManagerEx.getInstanceEx().openProject(projectToOpen);

            return projectToOpen;
        } finally {
            getBuilder().cleanup();
        }
    }

    public static String getUrl(@NonNls String path) {
        try {
            path = FileUtil.resolveShortWindowsName(path);
        } catch (IOException e) {
            //file doesn't exist
        }
        return VfsUtil.pathToUrl(FileUtil.toSystemIndependentName(path));
    }
}