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Copyright (C) 2017 Red Hat, Inc.
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.
*/
import {
ConfigModel,
ExpressionModel,
MappedField,
MappingModel,
} from '@atlasmap/core';
export const trailerId = 'expression-trailer';
function activeMapping(): boolean {
const cfg = ConfigModel.getConfig();
return !!cfg?.mappings?.activeMapping;
}
export abstract class ExpressionNode {
protected static sequence = 0;
protected uuid: string;
constructor(prefix: string) {
this.uuid = prefix + ExpressionNode.sequence++;
}
getUuid() {
return this.uuid;
}
abstract toText(): string;
abstract toHTML(): string;
}
export class TextNode extends ExpressionNode {
static readonly PREFIX = 'expression-text-';
constructor(public str: string) {
super(TextNode.PREFIX);
}
toText(): string {
return this.str;
}
toHTML(): string {
return `<span id="${this.uuid}">${this.str.replace(/ /g, ' ')}</span>`;
}
}
export class FieldNode extends ExpressionNode {
protected field: MappedField | null | undefined;
static readonly PREFIX = 'expression-field-';
constructor(
private mapping: MappingModel,
public mfield?: MappedField,
index?: number,
) {
super(FieldNode.PREFIX);
if (!mfield && index) {
this.field = mapping.getMappedFieldForIndex((index + 1).toString(), true);
}
}
toText(): string {
if (!this.mapping || !this.field) {
return '';
}
return '${' + (this.mapping.getIndexForMappedField(this.field)! - 1) + '}';
}
toHTML(): string {
if (!this.field) {
return '';
}
if (this.field && this.field.field) {
return `<span contenteditable="false" id="${this.uuid}" title="${this.field.field.docDef.name}:${this.field.field.path}"
class="expressionFieldLabel label label-default">${this.field.field.name}</span>`;
} else {
return `<span contenteditable="false" id="${this.uuid}"
title="Field index '${
this.mapping.getIndexForMappedField(this.field)! - 1
}' is not available"
class="expressionFieldLabel label label-danger">N/A</span>`;
}
}
}
export function getExpression(): ExpressionModel | null | undefined {
const cfg = ConfigModel.getConfig();
if (!activeMapping() || !cfg.mappings?.activeMapping) {
return null;
}
const mapping = cfg.mappings!.activeMapping;
let expression = mapping!.transition.expression;
if (!expression) {
mapping!.transition.expression = new ExpressionModel(mapping!, cfg);
expression = mapping!.transition.expression;
expression.generateInitialExpression();
expression.updateFieldReference(mapping!);
} else {
if (mapping!.transition.expression) {
mapping!.transition.expression.setConfigModel(cfg);
}
}
return mapping!.transition.expression;
}
export function getMappingExpression(): string {
const cfg = ConfigModel.getConfig();
if (!activeMapping()) {
return '';
}
if (!cfg.mappings?.activeMapping?.transition?.expression) {
if (!getExpression()) {
return '';
}
}
return cfg.mappings!.activeMapping!.transition.expression &&
cfg.mappings!.activeMapping!.transition.enableExpression
? cfg.mappings!.activeMapping!.transition.expression.toHTML()
: '';
}
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