libepg.epg.section.descriptor.contentdescriptor.Nibble.java Source code

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Here is the source code for libepg.epg.section.descriptor.contentdescriptor.Nibble.java

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/*
 * Copyright (C) 2016 normal
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package libepg.epg.section.descriptor.contentdescriptor;

import libepg.util.bytearray.ByteConverter;
import java.text.MessageFormat;
import java.util.Objects;
import libepg.util.bytearray.ByteDataBlock;
import org.apache.commons.codec.binary.Hex;

/**
 * (2?)
 */
public final class Nibble {

    private final ByteDataBlock data;

    Nibble(byte[] data) {
        this.data = new ByteDataBlock(data);
        int lengthFromData = this.data.getData().length;
        if (lengthFromData != 2) {
            MessageFormat msg1 = new MessageFormat(
                    "?????????????={0} ??={1}");
            Object[] parameters1 = { lengthFromData, 2 };
            throw new IllegalArgumentException(msg1.format(parameters1));

        }
    }

    /**
     * ????
     *
     * @return ?
     */
    public synchronized byte[] getData() {
        return data.getData();
    }

    /**
     * content_nibble_level_11??4 ????
     * ?????????H ?
     *
     * @return ?
     * @throws IllegalStateException ???????????
     */
    public synchronized NIBBLE_LEVEL_1 getContent_nibble_level_1() throws IllegalStateException {
        int temp;
        temp = ByteConverter.byteToInt(this.getData()[0]);
        temp = temp >>> 4;
        NIBBLE_LEVEL_1 n1 = NIBBLE_LEVEL_1.reverseLookUp(temp);
        if (n1 == null) {
            throw new IllegalStateException("?????   = "
                    + Integer.toHexString(temp) + " ? = " + this.data);
        }
        return n1;
    }

    /**
     * content_nibble_level_22??4 ????
     * ?????????H ?
     *
     * @return ?
     * @throws IllegalStateException ???????????
     */
    public synchronized NIBBLE_LEVEL_2 getContent_nibble_level_2() throws IllegalStateException {
        int temp;
        temp = ByteConverter.byteToInt(this.getData()[0]);
        temp = temp & 0xf;
        NIBBLE_LEVEL_1 n1 = this.getContent_nibble_level_1();
        NIBBLE_LEVEL_2 n2 = NIBBLE_LEVEL_2.reverseLookUp(n1.getCode(), temp);
        if (n2 == null) {
            throw new IllegalStateException("????? ? = " + n1
                    + "\n = " + Integer.toHexString(temp) + "\n? = " + this.data);
        }
        return n2;
    }

    /**
     * user_nibble??4 ??????
     *
     * @return ?
     */
    public synchronized int getUser_nibble1() {
        int temp;
        temp = ByteConverter.byteToInt(this.getData()[1]);
        temp = temp >>> 4;
        return temp;
    }

    /**
     * user_nibble??4 ??????
     *
     * @return ?
     */
    public synchronized int getUser_nibble2() {
        int temp;
        temp = ByteConverter.byteToInt(this.getData()[1]);
        temp = temp & 0xf;
        return temp;
    }

    @Override
    public int hashCode() {
        int hash = 3;
        hash = 23 * hash + Objects.hashCode(this.data);
        return hash;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        final Nibble other = (Nibble) obj;
        if (!Objects.equals(this.data, other.data)) {
            return false;
        }
        return true;
    }

    private static final String TITLE = "";
    private static final MessageFormat NIBBLE_DESC = new MessageFormat(
            TITLE + " ? = {0}\n" + TITLE + " 1 = {1}\n" + TITLE + " 2 = {2}\n"
                    + TITLE + " 1 = {3}\n" + TITLE + " 2 = {4}\n");

    @Override
    public String toString() {
        Object[] parameters = { this.data, this.getContent_nibble_level_1(), this.getContent_nibble_level_2(),
                this.getUser_nibble1(), this.getUser_nibble2() };
        return NIBBLE_DESC.format(parameters);
    }

}