From 59416923dcb3a756eaf532cc4259f2f6625c0762 Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Sun, 31 Mar 2019 22:35:39 -0700 Subject: Convert project to gradle --- src/main/java/org/traccar/helper/BufferUtil.java | 47 ++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 src/main/java/org/traccar/helper/BufferUtil.java (limited to 'src/main/java/org/traccar/helper/BufferUtil.java') diff --git a/src/main/java/org/traccar/helper/BufferUtil.java b/src/main/java/org/traccar/helper/BufferUtil.java new file mode 100644 index 000000000..15c619ec5 --- /dev/null +++ b/src/main/java/org/traccar/helper/BufferUtil.java @@ -0,0 +1,47 @@ +/* + * Copyright 2018 Anton Tananaev (anton@traccar.org) + * Copyright 2018 Andrey Kunitsyn (andrey@traccar.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.traccar.helper; + +import java.nio.charset.StandardCharsets; + +import io.netty.buffer.ByteBuf; +import io.netty.buffer.ByteBufUtil; +import io.netty.buffer.Unpooled; + +public final class BufferUtil { + + private BufferUtil() { + } + + public static int indexOf(String needle, ByteBuf haystack) { + ByteBuf needleBuffer = Unpooled.wrappedBuffer(needle.getBytes(StandardCharsets.US_ASCII)); + try { + return ByteBufUtil.indexOf(needleBuffer, haystack); + } finally { + needleBuffer.release(); + } + } + + public static int indexOf(String needle, ByteBuf haystack, int startIndex, int endIndex) { + ByteBuf wrappedHaystack = Unpooled.wrappedBuffer(haystack); + wrappedHaystack.readerIndex(startIndex - haystack.readerIndex()); + wrappedHaystack.writerIndex(endIndex - haystack.readerIndex()); + int result = indexOf(needle, wrappedHaystack); + return result < 0 ? result : haystack.readerIndex() + result; + } + +} -- cgit v1.2.3