cz.lbenda.common.BitArrayBinaryData.java Source code

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Here is the source code for cz.lbenda.common.BitArrayBinaryData.java

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/*
 * Copyright 2014 Lukas Benda <lbenda at lbenda.cz>.
 *
 * 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 cz.lbenda.common;

import org.apache.commons.io.input.CharSequenceReader;
import org.apache.commons.lang3.StringUtils;

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.Reader;
import java.util.Arrays;

/** Created by Lukas Benda <lbenda @ lbenda.cz> on 26.9.15.
 * Binary implementation of binary data which is in memory */
public class BitArrayBinaryData implements BinaryData {

    public static BitArrayBinaryData NULL = new BitArrayBinaryData("NULL", "");

    private byte[] bytes;
    private String name;

    public BitArrayBinaryData(String name, byte[] bytes) {
        this.name = name;
        this.bytes = bytes;
    }

    public BitArrayBinaryData(String name, String bytes) {
        this.name = name;
        if (StringUtils.isBlank(bytes)) {
            this.bytes = null;
        } else {
            this.bytes = AbstractHelper.parseBitBinary(bytes);
        }
    }

    @Override
    public String getName() {
        return name;
    }

    @Override
    public InputStream getInputStream() {
        return new ByteArrayInputStream(bytes);
    }

    @Override
    public Reader getReader() {
        return new CharSequenceReader(AbstractHelper.printBitBinary(bytes));
    }

    @Override
    public boolean isText() {
        return true;
    }

    @Override
    public boolean isLazyLoading() {
        return false;
    }

    @Override
    public long size() {
        if (bytes == null) {
            return 0;
        }
        return bytes.length;
    }

    @Override
    public boolean isNull() {
        return bytes == null;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o)
            return true;
        if (!(o instanceof BitArrayBinaryData))
            return false;

        BitArrayBinaryData that = (BitArrayBinaryData) o;

        return Arrays.equals(bytes, that.bytes);
    }

    @Override
    public int hashCode() {
        return bytes != null ? Arrays.hashCode(bytes) : 0;
    }
}