*/
package org.codelibs.fess.util;

import java.util.Arrays;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public final class JvmUtil {
    private static final Pattern VERSION_PREFIX_PATTERN = Pattern.compile("([0-9]+)(\\-?):(.*)");

    private JvmUtil() {
        // nothing
    }

    public static String[] filterJvmOptions(final String[] values) {
        final int version = getJavaVersion();

        assertEquals(4, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.5.0_15");
        assertEquals(5, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.6.0_34");
        assertEquals(6, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "1.7.0_25");
        assertEquals(7, JvmUtil.getJavaVersion());

    }

    String getJvmCrawlerOptions();

    default String[] getJvmCrawlerOptionsAsArray() {
        return JvmUtil.filterJvmOptions(getJvmCrawlerOptions().split("\n"));
    }

    String getJvmSuggestOptions();

    default String[] getJvmSuggestOptionsAsArray() {
        return JvmUtil.filterJvmOptions(getJvmSuggestOptions().split("\n"));
    }

    String getJvmThumbnailOptions();