org.gw4e.eclipse.wizard.convert.JSONPostConversionImpl.java Source code

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Here is the source code for org.gw4e.eclipse.wizard.convert.JSONPostConversionImpl.java

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package org.gw4e.eclipse.wizard.convert;

/*-
 * #%L
 * gw4e
 * $Id:$
 * $HeadURL:$
 * %%
 * Copyright (C) 2017 gw4e-project
 * %%
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * #L%
 */

import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.SubMonitor;
import org.eclipse.ui.IWorkbenchWindow;
import org.gw4e.eclipse.facade.ResourceManager;
import org.gw4e.eclipse.preferences.PreferenceManager;

import com.google.common.io.CharStreams;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonParser;

/**
 * After having converted a file to json format  
 *
 */
public class JSONPostConversionImpl extends AbstractPostConversion {

    /**
     * @param context
     */
    public JSONPostConversionImpl(ResourceContext context) {
        super(context);
    }

    /**
     * Pretty-fy  the json text so that it displays well in an editor
     * @param monitor
     */
    private void formatSource(IProgressMonitor monitor) {
        SubMonitor subMonitor = SubMonitor.convert(monitor, 100);
        InputStream in = null;
        Reader reader = null;
        try {
            Gson gson = new GsonBuilder().setPrettyPrinting().create();
            in = convertedFile.getContents();
            reader = new InputStreamReader(in);
            subMonitor.split(10);
            String text = CharStreams.toString(reader);
            JsonParser jp = new JsonParser();
            subMonitor.split(20);
            JsonElement je = jp.parse(text);
            String formatted = gson.toJson(je);
            subMonitor.split(40);
            ResourceManager.createFileDeleteIfExists(convertedFile.getParent().getFullPath().toString(),
                    convertedFile.getName(), formatted, subMonitor.split(30));
        } catch (Exception e) {
            ResourceManager.logException(e);
        } finally {
            try {
                if (reader != null)
                    reader.close();
            } catch (Exception e) {
            }
            try {
                if (in != null)
                    in.close();
            } catch (Exception e) {
            }
            subMonitor.done();
        }
    }

    /* (non-Javadoc)
     * @see org.gw4e.eclipse.wizard.convert.AbstractPostConversion#afterConversion(org.eclipse.core.runtime.IProgressMonitor)
     */
    @Override
    public void afterConversion(IProgressMonitor monitor) {
        if (convertedFile != null) {
            formatSource(monitor);
        }
    }

    protected void openEditor(IFile file, IWorkbenchWindow aww) {
        super.openEditor(file, PreferenceManager.getGW4EEditorName(), aww);
    }
}