/*
* Copyright (C) 2012, 2016 higherfrequencytrading.com
* Copyright (C) 2016 Roman Leventov
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License.
*
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package net.openhft.chronicle.hash.serialization.impl;
import net.openhft.chronicle.bytes.Bytes;
import net.openhft.chronicle.bytes.BytesUtil;
import net.openhft.chronicle.hash.serialization.SizedReader;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
public final class StringBuilderSizedReader
implements SizedReader<StringBuilder>, EnumMarshallable<StringBuilderSizedReader> {
public static final StringBuilderSizedReader INSTANCE = new StringBuilderSizedReader();
private StringBuilderSizedReader() {}
@NotNull
@Override
public StringBuilder read(Bytes in, long size, @Nullable StringBuilder using) {
if (0 > size || size > Integer.MAX_VALUE)
throw new IllegalStateException("positive int size expected, " + size + " given");
int csLen = (int) size;
if (using == null) {
using = new StringBuilder(csLen);
} else {
using.setLength(0);
using.ensureCapacity(csLen);
}
BytesUtil.parseUtf8(in, using, csLen);
return using;
}
@Override
public StringBuilderSizedReader readResolve() {
return INSTANCE;
}
}