PbMutableInt.java

/*
 * Copyright 2011 b1.org
 *
 * 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 org.b1.pack.standard.common;

import com.google.common.base.Preconditions;
import org.b1.pack.api.builder.Writable;

import java.io.IOException;
import java.io.OutputStream;

public class PbMutableInt implements Writable {

    private final int size;
    private ByteArrayWritable value;

    public PbMutableInt(int size) {
        this.size = size;
    }

    public void setValue(Long value) {
        this.value = new ByteArrayWritable(Numbers.serializeLong(value, size));
    }

    @Override
    public long getSize() {
        return size;
    }

    @Override
    public void writeTo(OutputStream stream, long start, long end) throws IOException {
        Preconditions.checkNotNull(value, "No value").writeTo(stream, start, end);
    }
}