001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.juneau.rest.arg;
018
019import org.apache.juneau.cp.*;
020import org.apache.juneau.reflect.*;
021import org.apache.juneau.rest.*;
022import org.apache.juneau.rest.annotation.*;
023import org.apache.juneau.utils.*;
024
025/**
026 * Resolves method parameters on {@link RestOp}-annotated Java methods of types found on the {@link RestOpSession} object.
027 *
028 * <ul class='javatree'>
029 *    <li class='jc'>{@link BeanStore}
030 *    <li class='jc'>{@link RestOpSession}
031 * </ul>
032 *
033 * <h5 class='section'>See Also:</h5><ul>
034 *    <li class='link'><a class="doclink" href="https://juneau.apache.org/docs/topics/JavaMethodParameters">Java Method Parameters</a>
035 * </ul>
036 */
037public class RestOpSessionArgs extends SimpleRestOperationArg {
038
039   /**
040    * Static creator.
041    *
042    * @param paramInfo The Java method parameter being resolved.
043    * @return A new arg, or <jk>null</jk> if the parameter type is not one of the supported types.
044    */
045   public static RestOpSessionArgs create(ParamInfo paramInfo) {
046      if (paramInfo.isType(BeanStore.class))
047         return new RestOpSessionArgs(RestOpSession::getBeanStore);
048      if (paramInfo.isType(RestOpSession.class))
049         return new RestOpSessionArgs(x->x);
050      return null;
051   }
052
053   /**
054    * Constructor.
055    *
056    * @param <T> The function return type.
057    * @param function The function for finding the arg.
058    */
059   protected <T> RestOpSessionArgs(ThrowingFunction<RestOpSession,T> function) {
060      super(session -> function.apply(session));
061   }
062}