| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.daffodil.processors.parsers |
| |
| |
| import org.apache.daffodil.processors.ElementRuntimeData |
| import org.apache.daffodil.processors.LengthInBitsEv |
| import org.apache.daffodil.processors.Processor |
| import org.apache.daffodil.schema.annotation.props.gen.LengthUnits |
| |
| sealed abstract class HexBinaryLengthParser(override val context: ElementRuntimeData) |
| extends PrimParser { |
| |
| protected def getLengthInBits(pstate: PState): Long |
| |
| private val zeroLengthArray = new Array[Byte](0) |
| |
| override final def parse(start: PState): Unit = { |
| val dis = start.dataInputStream |
| val currentElement = start.simpleElement |
| val nBits = getLengthInBits(start).toInt |
| if (nBits == 0) { |
| currentElement.setDataValue(zeroLengthArray) |
| } else if (!dis.isDefinedForLength(nBits)) { |
| PENotEnoughBits(start, nBits, dis.remainingBits) |
| } else { |
| val array = start.dataInputStream.getByteArray(nBits, start) |
| currentElement.setDataValue(array) |
| } |
| } |
| } |
| |
| final class HexBinarySpecifiedLengthParser(erd: ElementRuntimeData, lengthEv: LengthInBitsEv) |
| extends HexBinaryLengthParser(erd) { |
| |
| override val runtimeDependencies = Vector(lengthEv) |
| |
| override def getLengthInBits(pstate: PState): Long = { |
| lengthEv.evaluate(pstate).get |
| } |
| |
| } |
| |
| final class HexBinaryEndOfBitLimitParser(erd: ElementRuntimeData) |
| extends HexBinaryLengthParser(erd) { |
| |
| override val runtimeDependencies = Vector() |
| |
| override def getLengthInBits(pstate: PState): Long = { |
| pstate.bitLimit0b.get - pstate.bitPos0b |
| } |
| } |
| |
| final class HexBinaryLengthPrefixedParser( |
| erd: ElementRuntimeData, |
| override val prefixedLengthParser: Parser, |
| override val prefixedLengthERD: ElementRuntimeData, |
| override val lengthUnits: LengthUnits, |
| override val prefixedLengthAdjustmentInUnits: Long) |
| extends HexBinaryLengthParser(erd) |
| with PrefixedLengthParserMixin { |
| |
| override def childProcessors: Vector[Processor] = Vector(prefixedLengthParser) |
| override val runtimeDependencies = Vector() |
| |
| override def getLengthInBits(pstate: PState): Long = { |
| getPrefixedLengthInBits(pstate) |
| } |
| } |