Struts example source code file (ExternalContext.java)

This example Struts source code file (ExternalContext.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Struts tags/keywords

container, containerimpl, containerimpl, context, externalcontext, externalcontext, key, key, linkedhashmap, member, member, object, override, reflection, string, util

The Struts ExternalContext.java source code

/**
 * Copyright (C) 2006 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.opensymphony.xwork2.inject;

import java.lang.reflect.Member;
import java.util.LinkedHashMap;

/**
 * An immutable snapshot of the current context which is safe to
 * expose to client code.
 *
 * @author crazybob@google.com (Bob Lee)
 */
class ExternalContext<T> implements Context {

  final Member member;
  final Key<T> key;
  final ContainerImpl container;

  public ExternalContext(Member member, Key<T> key, ContainerImpl container) {
    this.member = member;
    this.key = key;
    this.container = container;
  }

  public Class<T> getType() {
    return key.getType();
  }

  public Scope.Strategy getScopeStrategy() {
    return (Scope.Strategy) container.localScopeStrategy.get();
  }

  public Container getContainer() {
    return container;
  }

  public Member getMember() {
    return member;
  }

  public String getName() {
    return key.getName();
  }

  @Override
  public String toString() {
    return "Context" + new LinkedHashMap<String, Object>() {{
      put("member", member);
      put("type", getType());
      put("name", getName());
      put("container", container);
    }}.toString();
  }

  static <T> ExternalContext newInstance(Member member, Key key,
      ContainerImpl container) {
    return new ExternalContext<T>(member, key, container);
  }
}