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/scalate-core/src/main/scala/org/fusesource/scalate/support/AttributesHashMap.scala

http://github.com/scalate/scalate
Scala | 61 lines | 28 code | 12 blank | 21 comment | 3 complexity | d30daa59af2b28260b69cf3fbe32720a MD5 | raw file
 1/**
 2 * Copyright (C) 2009-2011 the original author or authors.
 3 * See the notice.md file distributed with this work for additional
 4 * information regarding copyright ownership.
 5 *
 6 * Licensed under the Apache License, Version 2.0 (the "License");
 7 * you may not use this file except in compliance with the License.
 8 * You may obtain a copy of the License at
 9 *
10 *     http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18package org.fusesource.scalate.support
19
20import java.{ util => ju }
21
22import org.fusesource.scalate.AttributeMap
23
24import scala.collection.JavaConverters._
25
26/**
27 * The default implementation for <code>AttributeMap</code> backed
28 * by a map like collection.
29 */
30class AttributesHashMap extends AttributeMap {
31
32  private[this] val map = new ju.HashMap[String, Any]
33
34  def get(key: String): Option[Any] = {
35    val value = map.get(key)
36    Option(value)
37  }
38
39  def apply(key: String): Any = {
40    val answer = map.get(key)
41    if (answer == null) {
42      throw new NoSuchElementException("key " + key + " not available")
43    } else {
44      answer
45    }
46  }
47
48  def update(key: String, value: Any): Unit = {
49    map.put(key, value)
50  }
51
52  def remove(key: String): Option[Any] = {
53    val value = map.remove(key)
54    Option(value)
55  }
56
57  def keySet = map.keySet.asScala
58
59  override def toString = map.toString
60
61}