org.eclipse.scada.configuration.script.JSScriptParser.java Source code

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Here is the source code for org.eclipse.scada.configuration.script.JSScriptParser.java

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/*******************************************************************************
 * Copyright (c) 2014 IBH SYSTEMS GmbH 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:
 *     IBH SYSTEMS GmbH - initial API and implementation
 *******************************************************************************/

package org.eclipse.scada.configuration.script;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.Map;

import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.impl.ResourceImpl;

import com.google.common.io.CharStreams;

public class JSScriptParser implements Resource.Factory {

    @Override
    public Resource createResource(final URI uri) {
        return new ResourceImpl(uri) {
            @Override
            protected void doLoad(final InputStream inputStream, final Map<?, ?> options) throws IOException {
                try (final InputStreamReader stream = new InputStreamReader(inputStream)) {
                    getContents().add(parseContent(stream));
                }
            }

            @Override
            protected void doSave(final OutputStream outputStream, final Map<?, ?> options) throws IOException {
                try (PrintStream ps = new PrintStream(outputStream)) {
                    ps.print(((JavaScript) getContents().get(0)).getSource());
                }
            }
        };
    }

    protected EObject parseContent(final InputStreamReader stream) throws IOException {
        final String value = CharStreams.toString(stream);

        final JavaScript script = ScriptFactory.eINSTANCE.createJavaScript();
        script.setSource(value);

        return script;
    }

}