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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.node.admin.task.util.template;
import com.yahoo.vespa.hosted.node.admin.task.util.text.Cursor;
import com.yahoo.vespa.hosted.node.admin.task.util.text.CursorRange;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
/**
* A mutable list of sections at the same level that can be used to build a template, e.g. the if-body.
*
* @author hakonhall
*/
class SectionList {
private final Cursor start;
private final Cursor end;
private final TemplateBuilder templateBuilder;
private final List<Section> sections = new ArrayList<>();
SectionList(Cursor start, TemplateBuilder templateBuilder) {
this.start = new Cursor(start);
this.end = new Cursor(start);
this.templateBuilder = templateBuilder;
}
CursorRange range() { return new CursorRange(start, end); }
TemplateBuilder templateBuilder() { return templateBuilder; }
List<Section> sections() { return List.copyOf(sections); }
void appendLiteralSection(Cursor end) {
CursorRange range = verifyAndUpdateEnd(end);
var section = new LiteralSection(range);
templateBuilder.addLiteralSection(section);
sections.add(section);
}
VariableSection appendVariableSection(String name, Cursor nameOffset, Cursor end) {
CursorRange range = verifyAndUpdateEnd(end);
var section = new VariableSection(range, name, nameOffset);
templateBuilder.addVariableSection(section);
sections.add(section);
return section;
}
void appendIfSection(boolean negated, String name, Cursor nameOffset, Cursor end,
SectionList ifSections, Optional<SectionList> elseSections) {
CursorRange range = verifyAndUpdateEnd(end);
var section = new IfSection(range, negated, name, nameOffset, ifSections, elseSections);
templateBuilder.addIfSection(section);
sections.add(section);
}
ListSection appendListSection(String name, Cursor nameOffset, Cursor end, Template body) {
CursorRange range = verifyAndUpdateEnd(end);
var section = new ListSection(range, name, nameOffset, body);
templateBuilder.addListSection(section);
sections.add(section);
return section;
}
private CursorRange verifyAndUpdateEnd(Cursor newEnd) {
var range = new CursorRange(this.end, newEnd);
this.end.set(newEnd);
return range;
}
}
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