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16 package org.apache.logging.log4j.catalog.api.plugins;
17
18 import java.util.Arrays;
19
20 import org.apache.logging.log4j.catalog.api.ConstraintType;
21 import org.apache.logging.log4j.core.config.plugins.Plugin;
22 import static org.apache.logging.log4j.catalog.api.util.StringUtils.appendNewline;
23 import static org.apache.logging.log4j.catalog.api.util.StringUtils.isBlank;
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28 @Plugin(name = "enum", category = ConstraintType.CATEGORY)
29 public class EnumConstraint implements ConstraintType {
30
31 @Override
32 public void validate(boolean isRequestContext, String name, String value, String enums, StringBuilder error) {
33 if (!isBlank(enums) && !isBlank(value)) {
34 boolean result = Arrays.stream(enums.trim().split("\\s*,\\s*")).anyMatch(value::equals);
35 if (!result) {
36 appendNewline(error);
37 if (isRequestContext) {
38 error.append("ThreadContext key ");
39 }
40 error.append(name).append(" does not match one of the values: ").append(enums);
41 }
42 }
43 }
44 }