com.wingnest.play2.origami.IdManager.java Source code

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Here is the source code for com.wingnest.play2.origami.IdManager.java

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/*
 * Copyright since 2013 Shigeru GOUGI (sgougi@gmail.com)
 *
 * 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 com.wingnest.play2.origami;

import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.binary.Hex;

import com.orientechnologies.orient.core.id.ORID;
import com.wingnest.play2.origami.plugin.exceptions.OrigamiUnexpectedException;

final public class IdManager {

    private static IdHandler ID_HANDLER = null;

    public String encodeId(final ORID identity) {
        if (identity.isTemporary()) {
            throw new IllegalStateException("Temporary object does not ganerates id : " + identity.toString());
        }
        if (ID_HANDLER == null) {
            final String rid = identity.toString();
            return Codec.byteToHexString(rid.getBytes());
        }
        return ID_HANDLER.encode(identity);
    }

    public String decodeId(final String id) {
        if (ID_HANDLER == null) {
            return new String(Codec.hexStringToByte(id));
        }
        return ID_HANDLER.decode(id);
    }

    public void setIdHandler(final IdHandler handler) {
        ID_HANDLER = handler;
    }

    public interface IdHandler {
        String encode(ORID identity);

        String decode(String encodedId);
    }

    public static class Codec {
        // from play1.2.5
        public static byte[] hexStringToByte(String hexString) {
            try {
                return Hex.decodeHex(hexString.toCharArray());
            } catch (DecoderException e) {
                throw new OrigamiUnexpectedException(e);
            }
        }

        public static String byteToHexString(byte[] bytes) {
            return String.valueOf(Hex.encodeHex(bytes));
        }
    }
}