Package org.apache.felix.sigil.eclipse.ui.internal.quickfix

Source Code of org.apache.felix.sigil.eclipse.ui.internal.quickfix.ImportSearchResultProposal

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you 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.apache.felix.sigil.eclipse.ui.internal.quickfix;

import org.apache.felix.sigil.common.model.ModelElementFactory;
import org.apache.felix.sigil.common.model.osgi.IPackageExport;
import org.apache.felix.sigil.common.model.osgi.IPackageImport;
import org.apache.felix.sigil.common.osgi.VersionRange;
import org.apache.felix.sigil.eclipse.SigilCore;
import org.apache.felix.sigil.eclipse.model.project.ISigilProjectModel;
import org.apache.felix.sigil.eclipse.model.util.ModelHelper;
import org.apache.felix.sigil.eclipse.ui.SigilUI;
import org.apache.felix.sigil.search.ISearchResult;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.dom.ASTNode;
import org.eclipse.jdt.core.dom.CompilationUnit;
import org.eclipse.jdt.core.dom.Name;
import org.eclipse.jdt.core.dom.rewrite.ImportRewrite;
import org.eclipse.jdt.internal.corext.dom.ASTNodes;
import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
import org.eclipse.jdt.ui.CodeStyleConfiguration;
import org.eclipse.jdt.ui.text.java.IJavaCompletionProposal;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.contentassist.IContextInformation;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.actions.WorkspaceModifyOperation;

public class ImportSearchResultProposal implements IJavaCompletionProposal
{

    private ISigilProjectModel project;
    private ICompilationUnit fCompilationUnit;
    private final ISearchResult result;
    private final Shell shell;

    public ImportSearchResultProposal(Shell shell, ISearchResult result, Name node, ISigilProjectModel project)
    {
        this.shell = shell;
        this.result = result;
        this.project = project;
        if (node != null)
        {
            CompilationUnit cu = (CompilationUnit) ASTNodes.getParent(node,
                ASTNode.COMPILATION_UNIT);
            this.fCompilationUnit = (ICompilationUnit) cu.getJavaElement();
        }
    }

    public int getRelevance()
    {
        return 100;
    }

    public void apply(IDocument document)
    {
        IPackageExport e = result.getExport();
        if (result.getExport() == null)
        {
            if (MessageDialog.openQuestion(shell, "Modify "
                + result.getProvider().getBundleInfo().getSymbolicName(),
                result.getPackageName()
                    + " is not exported. Do you want to export it now?"))
            {
                final IPackageExport pe = ModelElementFactory.getInstance().newModelElement(
                    IPackageExport.class);
                pe.setPackageName(result.getPackageName());
                //e.setVersion(version)
                final ISigilProjectModel mod = result.getProvider().getAncestor(
                    ISigilProjectModel.class);
                if (mod == null)
                {
                    throw new IllegalStateException(
                        "Attempt to modify binary package export");
                }
                WorkspaceModifyOperation op = new WorkspaceModifyOperation()
                {
                    @Override
                    protected void execute(IProgressMonitor monitor) throws CoreException
                    {
                        mod.getBundle().getBundleInfo().addExport(pe);
                        mod.save(monitor);
                    }
                };

                SigilUI.runWorkspaceOperation(op, null);
                e = pe;
            }
        }

        final IPackageImport i = ModelElementFactory.getInstance().newModelElement(
            IPackageImport.class);
        i.setPackageName(e.getPackageName());
        VersionRange selectedVersions = ModelHelper.getDefaultRange(e.getVersion());
        i.setVersions(selectedVersions);

        WorkspaceModifyOperation op = new WorkspaceModifyOperation()
        {
            @Override
            protected void execute(IProgressMonitor monitor) throws CoreException
            {
                project.getBundle().getBundleInfo().addImport(i);
                project.save(null);
            }
        };

        SigilUI.runWorkspaceOperation(op, null);
        addSourceImport();
    }

    private void addSourceImport()
    {
        // add import
        try
        {
            ImportRewrite rewrite = CodeStyleConfiguration.createImportRewrite(
                fCompilationUnit, true);
            rewrite.addImport(result.getClassName());
            JavaModelUtil.applyEdit(fCompilationUnit, rewrite.rewriteImports(null),
                false, null);
        }
        catch (CoreException e)
        {
            SigilCore.error("Failed to add import", e);
        }
    }

    public String getAdditionalProposalInfo()
    {
        return null;
    }

    public IContextInformation getContextInformation()
    {
        // TODO Auto-generated method stub
        return null;
    }

    public String getDisplayString()
    {
        String type = result.getClassName();
        String loc = result.getExport() == null ? " from "
            + result.getProvider().getBundleInfo().getSymbolicName() : " version "
            + result.getExport().getVersion();
        return "Import " + type + loc;
    }

    public Image getImage()
    {
        // TODO Auto-generated method stub
        return null;
    }

    public Point getSelection(IDocument document)
    {
        return null;
    }
}
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