org.eclipse.scada.configuration.world.lib.utils.Helper.java Source code

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Here is the source code for org.eclipse.scada.configuration.world.lib.utils.Helper.java

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/*******************************************************************************
 * Copyright (c) 2013, 2016 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.world.lib.utils;

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.Map;
import java.util.regex.Pattern;

import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.scada.utils.str.StringReplacer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.io.ByteStreams;
import com.google.common.io.CharStreams;
import com.google.common.io.Files;

public class Helper {
    private final static Logger logger = LoggerFactory.getLogger(Helper.class);

    private final static Pattern PATTERN = Pattern.compile("\\$\\$(.*?)\\$\\$");

    public static void createFile(final File file, final InputStream resource,
            final Map<String, String> replacements, final IProgressMonitor monitor) throws Exception {
        createFile(file, resource, replacements, monitor, PATTERN);
    }

    protected static void createFile(final File file, final InputStream resource,
            final Map<String, String> replacements, final IProgressMonitor monitor, final Pattern pattern)
            throws Exception {
        try {
            String str = CharStreams.toString(new InputStreamReader(resource, StandardCharsets.UTF_8));

            str = StringReplacer.replace(str, StringReplacer.newSource(replacements), pattern);

            createFile(file, str, monitor);
        } finally {
            resource.close();
        }
    }

    public static void createFile(final File file, final InputStream resource, final IProgressMonitor monitor,
            final boolean exec) throws Exception {
        file.getParentFile().mkdirs();

        try {
            try (FileOutputStream fos = new FileOutputStream(file)) {
                ByteStreams.copy(resource, fos);
            }
            file.setExecutable(exec);
        } finally {
            resource.close();
        }
    }

    public static void createFile(final File file, final String data, final IProgressMonitor monitor)
            throws Exception {
        logger.debug("Writing string data file: {}", file);

        file.getParentFile().mkdirs();

        Files.write(data, file, Charset.forName("UTF-8"));
    }
}