RichTextValueInspectorService.java

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 * Copyright (C) 2023 wcm.io
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 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
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package io.wcm.siteapi.genericedit.builder.impl.inspector;

import java.util.regex.Pattern;

import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.osgi.service.component.annotations.Component;

import io.wcm.siteapi.genericedit.builder.ValueInspectorService;
import io.wcm.siteapi.genericedit.component.value.RichTextValue;

/**
 * Detects rich text values.
 */
@Component(service = ValueInspectorService.class)
public class RichTextValueInspectorService extends ValueInspectorService<RichTextValue> {

  // heuristic to detect rich text fragments
  private static final Pattern RICHTEXT_PATTERN = Pattern.compile("<[^<>]+>.*</[^<>]+>", Pattern.DOTALL);

  @Override
  @SuppressWarnings("null")
  protected @Nullable RichTextValue inspectValue(@NotNull String key, @Nullable Object rawValue,
      @NotNull Object instance) {
    if (isRichText(rawValue)) {
      return new RichTextValueImpl((String)rawValue);
    }
    return null;
  }

  private boolean isRichText(@Nullable Object value) {
    return (value instanceof String) && RICHTEXT_PATTERN.matcher((String)value).find();
  }

}