package org.springframework.security.oauth2.provider.client;
import java.io.IOException;
import java.util.Arrays;
import java.util.LinkedHashSet;
import java.util.Set;
import org.springframework.util.StringUtils;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.core.type.TypeReference;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JavaType;
import com.fasterxml.jackson.databind.deser.std.StdDeserializer;
import com.fasterxml.jackson.databind.type.SimpleType;
@SuppressWarnings("serial")
public class Jackson2ArrayOrStringDeserializer extends StdDeserializer<Set<String>> {
public Jackson2ArrayOrStringDeserializer() {
super(Set.class);
}
@Override
public JavaType getValueType() {
return SimpleType.construct(String.class);
}
@Override
public Set<String> deserialize(JsonParser jp, DeserializationContext ctxt) throws IOException,
JsonProcessingException {
JsonToken token = jp.getCurrentToken();
if (token.isScalarValue()) {
String list = jp.getText();
list = list.replaceAll("\\s+", ",");
return new LinkedHashSet<String>(Arrays.asList(StringUtils.commaDelimitedListToStringArray(list)));
}
return jp.readValueAs(new TypeReference<Set<String>>() {
});
}
}