com.zotoh.core.util.DataUte.java Source code

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Here is the source code for com.zotoh.core.util.DataUte.java

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/*??
 * COPYRIGHT (C) 2008-2009 CHERIMOIA LLC. ALL RIGHTS RESERVED.
 *
 * THIS IS FREE SOFTWARE; YOU CAN REDISTRIBUTE IT AND/OR
 * MODIFY IT UNDER THE TERMS OF THE APACHE LICENSE, 
 * VERSION 2.0 (THE "LICENSE").
 *
 * THIS LIBRARY IS DISTRIBUTED IN THE HOPE THAT IT WILL BE USEFUL,
 * BUT WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 *   
 * SEE THE LICENSE FOR THE SPECIFIC LANGUAGE GOVERNING PERMISSIONS 
 * AND LIMITATIONS UNDER THE LICENSE.
 *
 * You should have received a copy of the Apache License
 * along with this distribution; if not, you may obtain a copy of the 
 * License at 
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 ??*/

package com.zotoh.core.util;

import static com.zotoh.core.util.CoreUte.*;

import java.net.URI;
import java.sql.Timestamp;
import java.util.Date;

import org.apache.commons.codec.binary.Base64;

import com.zotoh.core.crypto.Password;
import com.zotoh.core.crypto.PwdFactory;

/**
 * @author kenl
 *
 */
public enum DataUte {
    ;

    /**
     * @param obj
     * @return
     */
    public static boolean toBoolean(Object obj) {
        if (isNull(obj))
            throw new RuntimeException("Null object conversion not allowed");
        if (obj instanceof Boolean) {
            return (Boolean) obj;
        } else {
            return Boolean.parseBoolean(obj.toString());
        }
    }

    /**
     * @param obj
     * @return
     */
    public static double toDouble(Object obj) {
        if (isNull(obj))
            throw new RuntimeException("Null object conversion not allowed");
        if (obj instanceof Double) {
            return (Double) obj;
        } else {
            return Double.parseDouble(obj.toString());
        }
    }

    /**
     * @param obj
     * @return
     */
    public static float toFloat(Object obj) {
        if (isNull(obj))
            throw new RuntimeException("Null object conversion not allowed");
        if (obj instanceof Float) {
            return (Float) obj;
        } else {
            return Float.parseFloat(obj.toString());
        }
    }

    /**
     * @param obj
     * @return
     */
    public static long toLong(Object obj) {
        if (isNull(obj))
            throw new RuntimeException("Null object conversion not allowed");
        if (obj instanceof Long) {
            return (Long) obj;
        } else {
            return Long.parseLong(obj.toString());
        }
    }

    /**
     * @param obj
     * @return
     */
    public static int toInt(Object obj) {
        if (isNull(obj))
            throw new RuntimeException("Null object conversion not allowed");
        if (obj instanceof Integer) {
            return (Integer) obj;
        } else {
            return Integer.parseInt(obj.toString());
        }
    }

    /**
     * @param obj
     * @return
     */
    public static Timestamp toTimestamp(Object obj) {
        if (isNull(obj))
            throw new RuntimeException("Null object conversion not allowed");
        if (obj instanceof Timestamp) {
            return (Timestamp) obj;
        } else {
            return Timestamp.valueOf(obj.toString());
        }
    }

    /**
     * @param obj
     * @return
     */
    public static Date toDate(Object obj) {
        if (isNull(obj))
            throw new RuntimeException("Null object conversion not allowed");
        if (obj instanceof Date) {
            return (Date) obj;
        } else {
            return parseDate(obj.toString());
        }
    }

    /**
     * @param obj
     * @return
     */
    public static byte[] toBytes(Object obj) {
        if (isNull(obj))
            throw new RuntimeException("Null object conversion not allowed");
        if (obj instanceof byte[]) {
            return (byte[]) obj;
        } else
            return null;
    }

    /**
     * @param obj
     * @return
     */
    public static URI toUri(Object obj) {
        if (isNull(obj))
            throw new RuntimeException("Null object conversion not allowed");
        if (obj instanceof URI) {
            return (URI) obj;
        } else if (obj instanceof String) {
            try {
                return new URI(obj.toString());
            } catch (Exception e) {
                tlog().warn("", e);
            }
        }
        return null;
    }

    /**
     * @param obj
     * @return
     */
    public static Password toPassword(Object obj) {
        if (isNull(obj))
            throw new RuntimeException("Null object conversion not allowed");
        if (obj instanceof Password) {
            return (Password) obj;
        } else if (obj instanceof String) {
            try {
                return PwdFactory.getInstance().create(obj.toString());
            } catch (Exception e) {
                tlog().warn("", e);
            }
        }
        return null;
    }

    /**
     * @param cz
     * @param s
     * @return
     */
    public static Object conv2Obj(Class<?> cz, String s) {

        Object o = null;

        if (Boolean.class.equals(cz))
            o = Boolean.parseBoolean(s);
        else if (Timestamp.class.equals(cz))
            o = CoreUte.parseTimestamp(s);
        else if (Date.class.equals(cz))
            o = CoreUte.parseDate(s);
        else if (Integer.class.equals(cz))
            o = Integer.parseInt(s);
        else if (Long.class.equals(cz))
            o = Long.parseLong(s);
        else if (Double.class.equals(cz))
            o = Double.parseDouble(s);
        else if (Float.class.equals(cz))
            o = Float.parseFloat(s);
        else if (String.class.equals(cz))
            o = s;
        else if (Password.class.equals(cz)) {
            try {
                o = PwdFactory.getInstance().create(s);
            } catch (Exception e) {
                tlog().warn("", e);
                o = null;
            }
        } else if (byte[].class.equals(cz))
            o = toBytes(s);

        return o;
    }

    /**
     * @param obj
     * @return
     */
    public static String convDown(Object obj) {
        return conv2String(obj, -1);
    }

    /**
     * @param obj
     * @return
     */
    public static String convUp(Object obj) {
        return conv2String(obj, 1);
    }

    private static String conv2String(Object obj, int dir) {

        String str = "";

        if (obj instanceof Timestamp) {
            str = fmtTimestamp((Timestamp) obj);
        } else if (obj instanceof Date) {
            str = fmtDate((Date) obj);
        } else if (obj instanceof Password) {
            Password pw = (Password) obj;
            str = dir < 0 ? pw.getAsEncoded() : pw.getAsClearText();
        } else if (obj instanceof byte[]) {
            str = Base64.encodeBase64String((byte[]) obj);
        } else if (obj instanceof URI) {
            str = ((URI) obj).toString();
        } else if (obj instanceof Double || obj instanceof Float || obj instanceof Integer || obj instanceof Long
                || obj instanceof Boolean) {
            str = obj.toString();
        } else if (obj instanceof String) {
            str = (String) obj;
        } else if (obj != null) {
            str = obj.toString();
        }

        return str;
    }

}