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1
53
54 package com.Yasna.forum.tags;
55
56 import javax.servlet.jsp.tagext.*;
57 import com.Yasna.forum.*;
58 import javax.servlet.jsp.*;
59 import java.util.*;
60
61 public class GroupsLoopTag extends TagSupport implements BooleanTag {
62
63 private boolean hasGroups;
64 private CategoriesLoopTag category;
65 private Iterator forumGroupIterator;
66 private ForumGroup forumGroup;
67 private String  name;
68 private final String BLANK = " ";
69 private String id;
70
71 public int doStartTag() throws JspException {
72 category = getParentCategory();
73 forumGroupIterator = category.getCategory().forumGroups();
74 hasGroups = forumGroupIterator.hasNext();
75 if (hasGroups) {
76 forumGroup = (ForumGroup)forumGroupIterator.next();
77 name = forumGroup.getName();
78 pageContext.setAttribute(id, this, PageContext.PAGE_SCOPE);
79 }
80 return EVAL_BODY_INCLUDE;
81 }
82
83 public void setId(String id) {
84 this.id = id;
85 }
86
87 public int doAfterBody() throws JspException {
88 if (forumGroupIterator.hasNext()) {
89 forumGroup = (ForumGroup)forumGroupIterator.next();;
90 name = forumGroup.getName();
91 return EVAL_BODY_AGAIN;
92 } else {
93 return SKIP_BODY;
94 }
95 }
96
97 public int doEndTag() throws JspException {
98 return EVAL_PAGE;
99 }
100
101 public boolean getValue() {
102 return hasGroups;
103 }
104
105 private CategoriesLoopTag getParentCategory() {
106 CategoriesLoopTag g = null;
107 try {
108 g = (CategoriesLoopTag)this.findAncestorWithClass(this,
109 Class.forName("com.Yasna.forum.tags.CategoriesLoopTag"));
110 } catch(Exception e) {
111 }
112 return g;
113 }
114
115 public ForumGroup getGroup() {
116 return forumGroup;
117 }
118
119 public String getName() {
120 String toReturn = name;
121 name = BLANK;
122 return toReturn;
123 }
124 } |
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