Java Properties Save saveProperties(final IResource modelResource, final Properties props)

Description

Store the properties

License

Open Source License

Declaration

public static void saveProperties(final IResource modelResource, final Properties props) 

Method Source Code

//package com.java2s;
/**// w w  w.jav a  2 s  .c  o  m
 * <copyright>
 *
 * Copyright (c) 2009, 2010 Springsite BV (The Netherlands) and others
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *   Martin Taal - Initial API and implementation
 *
 * </copyright>
 *
 * $Id: EclipseGeneratorUtils.java,v 1.9 2011/08/25 12:34:30 mtaal Exp $
 */

import java.io.File;

import java.io.FileOutputStream;
import java.io.IOException;

import java.io.OutputStream;

import java.util.Properties;

import org.eclipse.core.resources.IResource;

import org.eclipse.core.resources.ResourcesPlugin;

import org.eclipse.core.runtime.Path;

public class Main {
    /** Store the properties */
    public static void saveProperties(final IResource modelResource, final Properties props) {
        final File file = getPropertiesFile(modelResource);
        try {
            final OutputStream os = new FileOutputStream(file);
            props.store(os, null);
            os.close();

            // refresh
            modelResource.getParent().refreshLocal(IResource.DEPTH_INFINITE, null);
        } catch (final Exception e) {
            throw new IllegalStateException("Exception for file on path " //$NON-NLS-1$
                    + file.getAbsolutePath(), e);
        }
    }

    /** get the properties files, creates a prop file if it does not exist yet */
    public static File getPropertiesFile(final IResource modelResource) {
        final String ecorePath = modelResource.getLocation().toOSString();
        if (!(ecorePath.endsWith(".ecore") //$NON-NLS-1$
                || ecorePath.endsWith(".xsd") //$NON-NLS-1$
                || ecorePath.endsWith(".genprops"))) { //$NON-NLS-1$
            throw new IllegalArgumentException("Path does not point to a real ecore file: " + ecorePath); //$NON-NLS-1$
        }
        final String genPropsPath = ecorePath.substring(0, ecorePath.lastIndexOf(".")) //$NON-NLS-1$
                + ".genprops"; //$NON-NLS-1$
        final File file = new File(genPropsPath);
        try {
            if (!file.exists()) {
                file.createNewFile();
            }
            return file;
        } catch (final IOException e) {
            throw new IllegalStateException("IOException for file on path " //$NON-NLS-1$
                    + genPropsPath, e);
        }
    }

    /** Checks if a certain file already exists in the workspace path */
    public static boolean exists(final String wsPath) {
        return ResourcesPlugin.getWorkspace().getRoot().getFile(new Path(wsPath)).exists();
    }
}

Related

1. saveOccurrencesAsText(String fileName, TreeMap distribution, int frequency, char[] ignore)
2. saveOutputFile(String prefix, String suffix, String data)
3. saveParamsToFile(String fileName, String[] params)
4. saveParamToFile(String fileName, String param, String value)
5. saveProperties()
6. saveProperties(Map map, File file, String encoding)
7. saveProperties(Map map, Writer tmpWriter)
8. saveProperties(Properties p, String file)
9. saveProperties(Properties p, String sFile)