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Java > Open Source Codes > net > sourceforge > cruisecontrol > taglib > ProjectNavigationTag


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37 package net.sourceforge.cruisecontrol.taglib;
38
39 import java.io.IOException JavaDoc;
40 import java.util.Arrays JavaDoc;
41
42 import javax.servlet.jsp.JspException JavaDoc;
43 import javax.servlet.jsp.tagext.BodyContent JavaDoc;
44
45 /**
46  *
47  */
48 public class ProjectNavigationTag extends CruiseControlBodyTagSupport {
49     static final String JavaDoc STATUS_PAGE_TEXT = "-- STATUS PAGE --";
50     static final String JavaDoc SELECTED_ATTR_VALUE = "selected=\"selected\"";
51     public static final String JavaDoc SELECTED_ATTR = "selected";
52     public static final String JavaDoc LINK_TEXT_ATTR = "linktext";
53     public static final String JavaDoc URL_ATTR = "projecturl";
54
55     private int count; // the current item counter of the project list
56 private int endPoint; // How many times around the loop have we gone
57 private String JavaDoc[] projects; // array of project names
58
59     public int doStartTag() throws JspException JavaDoc {
60         projects = findProjects();
61         Arrays.sort(projects);
62         count = -1;
63         endPoint = projects.length;
64         if (count < endPoint) {
65             return EVAL_BODY_TAG;
66         } else {
67             return SKIP_BODY;
68         }
69     }
70
71
72     public void doInitBody() throws JspException JavaDoc {
73        setupLinkVariables();
74     }
75
76     void setupLinkVariables() {
77         if (count == -1) {
78             getPageContext().setAttribute(LINK_TEXT_ATTR, STATUS_PAGE_TEXT);
79             getPageContext().setAttribute(URL_ATTR, getRequest().getContextPath() + "/");
80             getPageContext().setAttribute(SELECTED_ATTR, "");
81         } else {
82             final String JavaDoc projectName = projects[count];
83             getPageContext().setAttribute(LINK_TEXT_ATTR, projectName);
84             getPageContext().setAttribute(URL_ATTR, getURL(projectName));
85             getPageContext().setAttribute(SELECTED_ATTR, getSelected(projectName));
86            }
87         count++;
88     }
89
90     private String JavaDoc getSelected(final String JavaDoc projectName) {
91         if (getProject().length() > 0 && getProject().substring(1).compareTo(projectName) == 0) {
92             return SELECTED_ATTR_VALUE;
93         }
94         return "";
95     }
96     
97     private String JavaDoc getURL(String JavaDoc projectName) {
98        return getServletPath() + "/" + projectName;
99     }
100
101
102     public int doAfterBody() throws JspException JavaDoc {
103         if (count < endPoint) {
104             setupLinkVariables();
105             return EVAL_BODY_TAG;
106         } else {
107             try {
108                 BodyContent JavaDoc out = getBodyContent();
109                 out.writeOut(out.getEnclosingWriter());
110             } catch (IOException JavaDoc e) {
111                 err(e);
112             }
113             return SKIP_BODY;
114         }
115     }
116 }
117
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