juneau-rest/juneau-rest-server/src/main/java/org/apache/juneau/rest/params/ParserParam.java

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package org.apache.juneau.rest.params;

import org.apache.juneau.parser.*;
import org.apache.juneau.reflect.*;
import org.apache.juneau.rest.*;
import org.apache.juneau.rest.annotation.*;

/**
 * Resolves method parameters of type {@link Parser} on {@link RestMethod}-annotated Java methods.
 *
 * <p>
 * The parameter value is resolved using <c><jv>call</jv>.{@link RestCall#getRestRequest() getRestRequest}().{@link RestRequest#getBody() getBody}().{@link RequestBody#getParser() getParser}()</c>.
 */
public class ParserParam extends SimpleRestParam {

	/**
	 * Static creator.
	 *
	 * @param paramInfo The Java method parameter being resolved.
	 * @return A new {@link ParserParam}, or <jk>null</jk> if the parameter type is not {@link Parser}.
	 */
	public static ParserParam create(ParamInfo paramInfo) {
		if (paramInfo.isType(Parser.class))
			return new ParserParam();
		return null;
	}

	/**
	 * Constructor.
	 */
	protected ParserParam() {
		super((c)->c.getRestRequest().getBody().getParser());
	}
}