com.pps.webos.util.AppInfoHelper.java Source code

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Here is the source code for com.pps.webos.util.AppInfoHelper.java

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/**
 *  Copyright (c) 2009. Knests, LLC
 *  
 *  This file is part of webOS Eclipse Plug-in.
 * 
 *  webOS Eclipse Plug-in is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  webOS Eclipse Plug-in is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with webOS Eclipse Plug-in.  If not, see <http://www.gnu.org/licenses/>.
 * 
 *  Author: Justin Musgrove
 *        justinm@knests.com
 *  
 * */
package com.pps.webos.util;

import java.lang.reflect.InvocationTargetException;

import org.apache.commons.beanutils.PropertyUtilsBean;
import org.eclipse.core.filebuffers.FileBuffers;
import org.eclipse.core.filebuffers.ITextFileBuffer;
import org.eclipse.core.filebuffers.ITextFileBufferManager;
import org.eclipse.core.filebuffers.LocationKind;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.jface.text.FindReplaceDocumentAdapter;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;

import com.pps.webos.enums.AppInfoEnum;
import com.pps.webos.model.AppInfo;

/**
 * Class used to used to replace update values in the appinfo.json
 * 
 * @author justinm
 *
 */
public class AppInfoHelper {

    /**
     * Method should replace values in the appinfo.json with values specified by in the UI.
     * Reference materials:
     *       org.eclipse.jface.text.FindReplaceDocumentAdapter to replace matches of file with the values of the domain table
     http://dev.eclipse.org/newslists/news.eclipse.platform/msg74246.html
     http://help.eclipse.org/help32/index.jsp?topic=/org.eclipse.platform.doc.isv/reference/api/org/eclipse/core/filebuffers/package-summary.html
     * @param projectName
     * @param appInfo
     */
    public void replaceAppInfoAttributes(String projectName, AppInfo appInfo) {

        try {
            /* get workspace location, since the directory structure should only contain 1 appinfo.json
             * logic will just look for the the name of the file **/
            IWorkspace workspace = ResourcesPlugin.getWorkspace();
            IFile file = workspace.getRoot().getProject(projectName).getFile(AppInfoEnum.WEBOS_FILE_APPINFO);

            //%PROJECT_NAME%archive/webos/appinfo.json
            ITextFileBufferManager fileBufferManager = FileBuffers.getTextFileBufferManager();
            IPath location = file.getLocation();
            fileBufferManager.connect(location, LocationKind.NORMALIZE, new NullProgressMonitor());

            ITextFileBuffer textFileBuffer = fileBufferManager.getTextFileBuffer(location, LocationKind.NORMALIZE);
            IDocument document = textFileBuffer.getDocument();

            FindReplaceDocumentAdapter findReplaceDocumentAdapter = new FindReplaceDocumentAdapter(document);

            // for each element in the enumeration
            // call method name from appInfo with MethodUtils
            PropertyUtilsBean propertyUtilsBean = new PropertyUtilsBean();
            Object tObj = null;
            for (AppInfoEnum appInfoEnum : AppInfoEnum.values()) {
                tObj = propertyUtilsBean.getProperty(appInfo, appInfoEnum.getFieldName());

                IRegion regionFind = findReplaceDocumentAdapter.find(0, appInfoEnum.getReplaceVal(), true, false,
                        true, false);
                IRegion regionReplace = findReplaceDocumentAdapter.replace(String.valueOf(tObj), false);
            }

            // commit replaced changes
            textFileBuffer.commit(new NullProgressMonitor(), true);

            // clean up  
            fileBufferManager.disconnect(location, LocationKind.NORMALIZE, new NullProgressMonitor());

        } catch (NullPointerException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (CoreException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (BadLocationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (InvocationTargetException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (NoSuchMethodException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }

    }

}