se.trixon.toolbox.alphatrans.cmd.CmdIconv.java Source code

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Here is the source code for se.trixon.toolbox.alphatrans.cmd.CmdIconv.java

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/* 
 * Copyright 2015 Patrik Karlsson.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package se.trixon.toolbox.alphatrans.cmd;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.SystemUtils;
import org.openide.modules.InstalledFileLocator;
import org.openide.util.Exceptions;
import se.trixon.almond.Xlog;
import se.trixon.toolbox.alphatrans.AlphatransController;

/**
 *
 * @author Patrik Karlsson <patrik@trixon.se>
 */
public class CmdIconv {

    private String mCommand = "iconv";

    public CmdIconv() {
        if (SystemUtils.IS_OS_WINDOWS) {
            File file = InstalledFileLocator.getDefault().locate("iconv.exe",
                    "se.trixon.toolbox.alphatrans.windows", false);
            mCommand = file.getAbsolutePath();
        }
    }

    public String convert(File source, File dest, String fromCharset, String toCharset, boolean omit) {
        String result = null;
        ArrayList<String> cmdElements = new ArrayList<>();
        cmdElements.add(mCommand);
        cmdElements.add("-f");
        cmdElements.add(fromCharset);
        cmdElements.add("-t");
        cmdElements.add(toCharset);
        if (omit) {
            cmdElements.add("-c");
        }
        cmdElements.add(source.getAbsolutePath());

        String[] cmd = cmdElements.toArray(new String[cmdElements.size()]);
        Xlog.v(AlphatransController.LOG_TAG, StringUtils.join(cmd, " "));

        ProcessBuilder processBuilder = new ProcessBuilder(cmd);
        processBuilder.redirectOutput(dest);

        try {
            Process process = processBuilder.start();
            process.waitFor();
            result = IOUtils.toString(process.getErrorStream());
            if (result.length() == 0) {
                result = null;
            }
        } catch (IOException | InterruptedException ex) {
            Exceptions.printStackTrace(ex);
        }

        return result;
    }

    public String[] list() {
        String[] charSets = { "" };
        String[] cmd = { mCommand, "-l" };

        try {
            Process p = Runtime.getRuntime().exec(cmd);
            p.waitFor();
            charSets = IOUtils.toString(p.getInputStream()).split("\\s+");
            for (int i = 0; i < charSets.length; i++) {
                charSets[i] = charSets[i].replace("/", "");
            }
        } catch (IOException | InterruptedException ex) {
            Exceptions.printStackTrace(ex);
        }
        Arrays.sort(charSets);

        return charSets;
    }
}