package jnpf.limsService.print;
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import jnpf.exception.DataException;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.stereotype.Component;
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import java.util.Collections;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* Spring 启动时收集所有 {@link PrintTemplateRenderer} 实现，按 templateId 索引。
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* Controller 通过 {@link #get(String)} 路由到具体 renderer。
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*/
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@Component
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public class PrintRendererRegistry {
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private final Map<String, PrintTemplateRenderer> renderers;
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@Autowired
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public PrintRendererRegistry(List<PrintTemplateRenderer> rendererList) {
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Map<String, PrintTemplateRenderer> map = new HashMap<>();
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for (PrintTemplateRenderer r : rendererList) {
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String key = r.getTemplateId();
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if (key == null || key.isEmpty()) {
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continue;
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}
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PrintTemplateRenderer existed = map.put(key, r);
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if (existed != null) {
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throw new IllegalStateException(
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"重复的 PrintTemplateRenderer template_id=" + key
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+ "，冲突类: " + existed.getClass().getName()
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+ " vs " + r.getClass().getName());
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}
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}
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this.renderers = Collections.unmodifiableMap(map);
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}
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public PrintTemplateRenderer get(String templateId) {
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PrintTemplateRenderer r = renderers.get(templateId);
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if (r == null) {
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throw new DataException("找不到打印模板的渲染器: " + templateId);
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}
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return r;
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}
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}
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