/*
 * (C) Copyright 2015 Boni Garcia (http://bonigarcia.github.io/)
 *
 * 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 io.github.bonigarcia.wdm;

import static io.github.bonigarcia.wdm.DriverManagerType.OPERA;
import static java.util.Arrays.asList;

import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.List;

/**
 * Manager for Opera.
 *
 * @author Boni Garcia (boni.gg@gmail.com)
 * @since 1.0.0
 */
public class OperaDriverManager extends WebDriverManager {

    public static synchronized WebDriverManager getInstance() {
        return operadriver();
    }

    public OperaDriverManager() {
        driverManagerType = OPERA;
        exportParameterKey = "wdm.operaDriverExport";
        driverVersionKey = "wdm.operaDriverVersion";
        driverUrlKey = "wdm.operaDriverUrl";
        driverMirrorUrlKey = "wdm.operaDriverMirrorUrl";
        driverName = asList("operadriver");
    }

    @Override
    protected List<URL> getDrivers() throws IOException {
        return getDriversFromGitHub();
    }

    @Override
    protected String getCurrentVersion(URL url, String driverName) {
        if (isUsingTaobaoMirror()) {
            int i = url.getFile().lastIndexOf(SLASH);
            int j = url.getFile().substring(0, i).lastIndexOf(SLASH) + 1;
            return url.getFile().substring(j, i);
        } else {
            return url.getFile().substring(
                    url.getFile().indexOf(SLASH + "v") + 2,
                    url.getFile().lastIndexOf(SLASH));
        }
    }

    @Override
    protected File postDownload(File archive) {
        log.trace("Post processing for Opera: {}", archive);

        File extractFolder = archive.getParentFile()
                .listFiles(getFolderFilter())[0];
        if (!extractFolder.isFile()) {
            log.trace("Opera extract folder (to be deleted): {}",
                    extractFolder);
            File operadriver = extractFolder.listFiles()[0];
            log.trace("Operadriver binary: {}", operadriver);

            File target = new File(archive.getParentFile().getAbsolutePath(),
                    operadriver.getName());
            log.trace("Operadriver target: {}", target);

            downloader.renameFile(operadriver, target);
            downloader.deleteFolder(extractFolder);
            return target;
        } else {
            return super.postDownload(archive);
        }
    }

}

@@ -2436,52 +2436,289 @@
 File
- operadriver = extractFolder.listFiles()%5B0%5D;
+%5B%5D listFiles = extractFolder.listFiles();%0A            int i = 0;%0A            File operadriver;%0A            do %7B%0A                operadriver = listFiles%5B0%5D;%0A                i++;%0A            %7D while (!config().isExecutable(operadriver)%0A                    %7C%7C i %3E= listFiles.length);%0A
 %0A   

Make more robust post download logic for opera driver