| /* |
| * 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.unparsers |
| |
| import org.apache.daffodil.processors.ElementRuntimeData |
| import org.apache.daffodil.exceptions.Assert |
| import org.apache.daffodil.util.Maybe |
| |
| case class SimpleNilOrValueUnparser( |
| ctxt: ElementRuntimeData, |
| nilUnparser: Unparser, valueUnparser: Unparser) extends CombinatorUnparser(ctxt) { |
| |
| override lazy val runtimeDependencies = Vector() |
| |
| override lazy val childProcessors = Vector(nilUnparser, valueUnparser) |
| |
| def unparse(state: UState): Unit = { |
| Assert.invariant(Maybe.WithNulls.isDefined(state.currentInfosetNode)) |
| val inode = state.currentInfosetNode.asSimple |
| // If this element has dfdl:outputValueCalc defined then the nilled value |
| // is always ignored and only the OVC value is used. Furthermore, if the |
| // element does not have xsi:nilled="true" in the infoset, that means |
| // _isNilledSet will be false until the OVC is evaluated. Thus, if the OVC |
| // suspends, this call to isNilled will throw a InfosetNoDataException |
| // because _isNilled has not been set yet. Rather than having to deal with |
| // suspending, only check isNilled for non-OVC elements. |
| if (!ctxt.dpathElementCompileInfo.isOutputValueCalc && inode.isNilled) nilUnparser.unparse1(state) |
| else valueUnparser.unparse1(state) |
| } |
| } |
| |
| case class ComplexNilOrContentUnparser( |
| ctxt: ElementRuntimeData, |
| nilUnparser: Unparser, contentUnparser: Unparser) extends CombinatorUnparser(ctxt) { |
| |
| override lazy val runtimeDependencies = Vector() |
| |
| override lazy val childProcessors = Vector(nilUnparser, contentUnparser) |
| |
| def unparse(state: UState): Unit = { |
| Assert.invariant(Maybe.WithNulls.isDefined(state.currentInfosetNode)) |
| val inode = state.currentInfosetNode.asComplex |
| val maybeIsNilled = inode.maybeIsNilled |
| if (maybeIsNilled.isDefined && maybeIsNilled.get) |
| nilUnparser.unparse1(state) |
| else |
| contentUnparser.unparse1(state) |
| } |
| } |