01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: package org.apache.tomcat.util.collections;
19:
20: import java.util.Enumeration;
21:
22: import org.apache.tomcat.util.buf.MessageBytes;
23:
24: /** Enumerate the values for a (possibly ) multiple
25: * value element.
26: */
27: class MultiMapValuesEnumeration implements Enumeration {
28: int pos;
29: int size;
30: MessageBytes next;
31: MultiMap headers;
32: String name;
33:
34: MultiMapValuesEnumeration(MultiMap headers, String name,
35: boolean toString) {
36: this .name = name;
37: this .headers = headers;
38: pos = 0;
39: size = headers.size();
40: findNext();
41: }
42:
43: private void findNext() {
44: next = null;
45: for (; pos < size; pos++) {
46: MessageBytes n1 = headers.getName(pos);
47: if (n1.equalsIgnoreCase(name)) {
48: next = headers.getValue(pos);
49: break;
50: }
51: }
52: pos++;
53: }
54:
55: public boolean hasMoreElements() {
56: return next != null;
57: }
58:
59: public Object nextElement() {
60: MessageBytes current = next;
61: findNext();
62: return current.toString();
63: }
64: }
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