/* * 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; } }