AccessTokenedSessionProvider.java

package kr.co.inger.hotwind.request_check.session;

import java.lang.reflect.Type;

import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.Context;
import javax.ws.rs.ext.Provider;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.sun.jersey.core.spi.component.ComponentContext;
import com.sun.jersey.core.spi.component.ComponentScope;
import com.sun.jersey.spi.inject.Injectable;
import com.sun.jersey.spi.inject.InjectableProvider;

/**
 * Context으로 지정된 메서드 인자중 AccessTokenedSession을 주입한다능.
 * 
 * classpath:/META-INF/services/com.sun.jersey.spi.inject.InjectableProvider 파일에
 * 이 클래스의 FQN을 한줄 입력해놓아야 Jersey이 검색해서 붙이므로 주의.
 * 
 * @author jhyun
 * @since 2013-Aug-14-Wed
 */
@Provider
public class AccessTokenedSessionProvider implements
		Injectable<AccessTokenedSession>, InjectableProvider<Context, Type> {

	@Context
	private HttpServletRequest request;

	public static final String SESSION_SAVE_KEY = "hotwind-session";

	private Logger logger = LoggerFactory
			.getLogger(AccessTokenedSessionProvider.class);

	@Override
	public Injectable getInjectable(ComponentContext cc, Context a, Type t) {
		if (t.equals(AccessTokenedSession.class)) {
			return this;
		} else
			return null;
	}

	@Override
	public ComponentScope getScope() {
		return ComponentScope.PerRequest;
	}

	@Override
	public AccessTokenedSession getValue() {
		AccessTokenedSession ats = null;
		if (request.getAttribute(SESSION_SAVE_KEY) == null) {
			ats = new AccessTokenedSession();
			request.setAttribute(SESSION_SAVE_KEY, ats);
		} else {
			ats = (AccessTokenedSession) request.getAttribute(SESSION_SAVE_KEY);
		}
		//
		return ats;
	}

}