javax.servlet.jsp.JspTagException Java Examples

/**
 * Process the start tag for this instance.
 */
@Override
public int doStartTag() throws JspTagException {
  // retrieve parent tag which accepts the produced collection by this tag 
  ValueAcceptingTagIF acceptingTag = (ValueAcceptingTagIF)
    findAncestorWithClass(this, ValueAcceptingTagIF.class);

  // try to retrieve root ContextTag
  ContextTag contextTag = FrameworkUtils.getContextTag(pageContext);

  // get collection of TM Reference entries from Configuration
  Collection refs =
    contextTag.getNavigatorApplication().getTopicMapRepository().getReferences();
  
  // kick it up to the accepting tag
  acceptingTag.accept( refs );

  // ignore body, because this is an empty tag
  return SKIP_BODY;
}
 

@Override
public int doEndTag() throws JspException {
    JspWriter out = pageContext.getOut();

    try {
        if (!"-1".equals(objectValue)) {
            out.print(objectValue);
        } else if (!"-1".equals(stringValue)) {
            out.print(stringValue);
        } else if (longValue != -1) {
            out.print(longValue);
        } else if (doubleValue != -1) {
            out.print(doubleValue);
        } else {
            out.print("-1");
        }
    } catch (IOException ex) {
        throw new JspTagException("IOException: " + ex.toString(), ex);
    }
    return super.doEndTag();
}
 

public int doEndTag() throws JspException {
	if (getParent()!=null && getParent() instanceof SectionHeader) {
		((SectionHeader)getParent()).setTitle(getBodyContent().getString());
	} else {
		try {
			String body = (getBodyContent()==null?null:getBodyContent().getString());
			if (body==null || body.trim().length()==0) {
				pageContext.getOut().println("<DIV class='WelcomeRowHeadBlank'>&nbsp;</DIV>");
			} else {
				pageContext.getOut().println("<DIV class='WelcomeRowHead'>");
				pageContext.getOut().println(body);
				pageContext.getOut().println("</DIV>");
			}
		} catch (Exception e) {
			e.printStackTrace();
			throw new JspTagException(e.getMessage());
		}
	}
	return EVAL_PAGE;
}
 

@Override
public Collection process(Collection tmObjects) throws JspTagException {
  // Find all reifying topics of all topic map objects in collection
  if (tmObjects == null || tmObjects.isEmpty())
    return Collections.EMPTY_SET;
  else {
    ArrayList reifyingTopics = new ArrayList();
    Iterator iter = tmObjects.iterator();
    TopicIF reifyingTopic;
    // Loop over the topic map objects
    while (iter.hasNext()) {
      // Get the topic that reifies the given topic map object
      reifyingTopic = ((ReifiableIF)iter.next()).getReifier();
      // If a topic was found add it to the result list.
      if (reifyingTopic != null)
        reifyingTopics.add(reifyingTopic);    
    }
    // Return all reifiying topics found.
    return reifyingTopics;
  }
}
 

/**
 * 为搜书功能中添加下拉框
 */
public void doTag() throws JspException, IOException {
	try {
		JspWriter out = jspContext.getOut();
		String outPrint = "";
		String[] color = { "Book Name", "Author", "Publisher", "ISBN" };
		outPrint += "<select id=\"input\" name=\"searchBy\"> ";
		for (int i = 0; i < color.length; i++) {
			outPrint += "<option>";
			outPrint += color[i];
			outPrint += "</option>";
		}
		outPrint += "</select>";
		out.print(outPrint);
	} catch (java.io.IOException e) {
		throw new JspTagException(e.getMessage());
	}
}
 

/**
 * Process the start tag for this instance.
 */
@Override
public int doStartTag() throws JspTagException {
  parentChooser = (ChooseTag) findAncestorWithClass(this, ChooseTag.class);
  if (parentChooser == null)
    throw new JspTagException(
            "tolog:otherwise tag is not inside tolog:choose tag.");

  ContextTag contextTag = FrameworkUtils.getContextTag(pageContext);
  
  if (contextTag == null)
    throw new JspTagException("<tolog:otherwise> must be nested directly or"
            + " indirectly within a <tolog:context> tag, but no"
            + " <tolog:context> tag was found.");
  
  contextTag.getContextManager().pushScope();
  
  // If a matching when was already found within the parentChooser
  if (parentChooser.foundMatchingWhen())
    // No more WhenTags need to be executed (tested in each WhenTag).
    return SKIP_BODY;
  return EVAL_BODY_BUFFERED;
}
 

public int doEndTag() throws JspException {

        // Rewrite and encode the url.
        String result = formatUrl();

        // Store or print the output
        if (var != null)
            pageContext.setAttribute(var, result, PageContext.PAGE_SCOPE);
        else {
            try {
                pageContext.getOut().print(result);
            } catch (IOException x) {
                throw new JspTagException(x);
            }
        }
        return EVAL_PAGE;
    }
 

public int doEndTag() throws JspException {

        // Rewrite and encode the url.
        String result = formatUrl();

        // Store or print the output
        if (var != null)
            pageContext.setAttribute(var, result, PageContext.PAGE_SCOPE);
        else {
            try {
                pageContext.getOut().print(result);
            } catch (IOException x) {
                throw new JspTagException(x);
            }
        }
        return EVAL_PAGE;
    }
 

/**
 * permission control
 */
@Override
public int doStartTag() throws JspTagException {
	ComAdmin aAdmin = AgnUtils.getAdmin(pageContext);

	if (aAdmin == null) {
		throw new JspTagException("PermissionDenied$" + permissionToken);
	} else {
		boolean permissionGranted = false;
		try {
			permissionGranted = aAdmin.permissionAllowed(Permission.getPermissionsByToken(permissionToken));
		} catch (Exception e) {
			releaseException(e, permissionToken);
		}
		if (!permissionGranted) {
			throw new JspTagException("PermissionDenied$" + permissionToken);
		}

		return SKIP_BODY;
	}
}
 

@Override
public int doEndTag() throws JspException {
    JspWriter out = pageContext.getOut();

    try {
        if (!"-1".equals(objectValue)) {
            out.print(objectValue);
        } else if (!"-1".equals(stringValue)) {
            out.print(stringValue);
        } else if (longValue != -1) {
            out.print(longValue);
        } else if (doubleValue != -1) {
            out.print(doubleValue);
        } else {
            out.print("-1");
        }
    } catch (IOException ex) {
        throw new JspTagException("IOException: " + ex.toString(), ex);
    }
    return super.doEndTag();
}
 

/**
 * Actions after some body has been evaluated.
 */
@Override
public int doAfterBody() throws JspTagException {
  ElementTag elementTag = (ElementTag)
    findAncestorWithClass(this, ElementTag.class);

  if (elementTag != null) {
    // get body content
    BodyContent body = getBodyContent();
    if (body != null) {
      String content = body.getString();
      // add this attribute to parent element tag 
      elementTag.addAttribute(attrName, content);
      body.clearBody();
    } else {
      log.warn("AttributeTag: body content is null!");
    }
  } else {
    log.warn("AttributeTag: no parent element tag found!");
  }
  
  // only evaluate body once
  return SKIP_BODY;
}
 

/**
 * 为添加书本中的location添加下拉框
 */
public void doTag() throws JspException, IOException {
	try {
		JspWriter out = jspContext.getOut();
		String outPrint = "";
		String[] color = { "四层-科技图书阅览区", "四层-科技图书典藏区", "三层-社科类图书阅览区", "三层-社科类图书典藏区", "二层-杂志期刊" };
		outPrint += "<select name='Location' size='1' class=\"form-control\"> ";
		for (int i = 0; i < color.length; i++) {
			outPrint += "<option>";
			outPrint += color[i];
			outPrint += "</option>";
		}
		outPrint += "</select>";
		out.print(outPrint);
	} catch (java.io.IOException e) {
		throw new JspTagException(e.getMessage());
	}
}
 

@Override
public int doEndTag() throws JspException {
    JspWriter out = pageContext.getOut();

    try {
        if (!"-1".equals(objectValue)) {
            out.print(objectValue);
        } else if (!"-1".equals(stringValue)) {
            out.print(stringValue);
        } else if (longValue != -1) {
            out.print(longValue);
        } else if (doubleValue != -1) {
            out.print(doubleValue);
        } else {
            out.print("-1");
        }
    } catch (IOException ex) {
        throw new JspTagException("IOException: " + ex.toString(), ex);
    }
    return super.doEndTag();
}
 

public int doEndTag() throws JspException {

        // Rewrite and encode the url.
        String result = formatUrl();

        // Store or print the output
        if (var != null)
            pageContext.setAttribute(var, result, PageContext.PAGE_SCOPE);
        else {
            try {
                pageContext.getOut().print(result);
            } catch (IOException x) {
                throw new JspTagException(x);
            }
        }
        return EVAL_PAGE;
    }
 

public int doEndTag() throws JspTagException {
	try {
		JspWriter out = this.pageContext.getOut();
		out.print(end().toString());
		out.flush();
	} catch (IOException e) {
		e.printStackTrace();
	}
	return EVAL_PAGE;
}
 

public int doEndTag() throws JspTagException {
	try {
		JspWriter out = this.pageContext.getOut();
		out.print(end().toString());
		out.flush();
	} catch (IOException e) {
		e.printStackTrace();
	}
	return EVAL_PAGE;
}
 

/**
 * INTERNAL: Creates the field name used by a particular action and
 * registers the data used by the action in the user session.
 */
public static String registerData(PageContext pageContext,
                                  String action_name, String group_name,
                                  String params, Set value)
  throws JspTagException {

  return registerData(pageContext, action_name, group_name, params, null,
                      value);
}
 

@Override
public Collection process(Collection topics) throws JspTagException {
  if (topics == null || topics.isEmpty())
    return Collections.EMPTY_SET;
  else {      
    // find the most appropiate name for each of the topics in the collection
    ArrayList names = new ArrayList();
    
    // if no customer name grabber, setup the name grabber right here, right now.
    if (nameGrabber == null && basenameScopeVarName != null) {
      Collection scope = contextTag.getContextManager().getValue(basenameScopeVarName);
      // if name should be grabbed in accordance with scope  
      if (scope != null) 
        nameGrabber = new NameGrabber(scope);
    }
    if (nameGrabber == null)
      nameGrabber = TopicCharacteristicGrabbers.getDisplayNameGrabber();

    // iterate through topics
    Iterator iter = topics.iterator();
    Object obj = null;
    while (iter.hasNext()) {
      obj = iter.next();
      if (obj instanceof TopicIF) {
        Object name = nameGrabber.grab(obj);
        if (name != null)
          names.add(name);
      }
    } // while
    return names;
  }
}
 

public int doEndTag() throws JspTagException {
	try {
		JspWriter out = this.pageContext.getOut();
		out.print(end().toString());
		out.flush();
	} catch (IOException e) {
		e.printStackTrace();
	}
	return EVAL_PAGE;
}
 

public int doEndTag() throws JspTagException {
	try {
		JspWriter out = this.pageContext.getOut();
		out.print(end().toString());
		out.flush();
	} catch (IOException e) {
		e.printStackTrace();
	}
	return EVAL_PAGE;
}
 

/**
 * Process the end tag.
 */
@Override
public int doEndTag() throws JspException {
  ContextTag contextTag = FrameworkUtils.getContextTag(pageContext);
  
  if (contextTag == null)
    throw new JspTagException("<tolog:declare> must be nested directly or"
            + " indirectly within a <tolog:context> tag, but no"
            + " <tolog:context> tag was found.");
  
  // get topicmap object on which we should compute 
  TopicMapIF topicmap = contextTag.getTopicMap();
  if (topicmap == null)
    throw new NavigatorRuntimeException("DeclareTag found no "
            + "topic map.");

  DeclarationContextIF declarationContext = contextTag
          .getDeclarationContext();
  try {
    declarationContext = QueryUtils.parseDeclarations(topicmap, declarations,
            declarationContext);
    
  } catch (InvalidQueryException e) {
    throw new JspTagException(e.getMessage());
  }
  contextTag.setDeclarationContext(declarationContext);
                
  return EVAL_PAGE;
}
 

/**
 * INTERNAL: Creates the field name used by a particular action and
 * registers the data used by the action in the user session.
 */
public static String registerData(PageContext pageContext,
                                  String action_name, String group_name,
                                  List paramlist, List sub_actions, Set value) 
  throws JspTagException {
  return registerData(pageContext, action_name, group_name, paramlist, sub_actions,
                      value, false, true);
}
 

public int doEndTag() throws JspTagException {
	try {
		JspWriter out = this.pageContext.getOut();
		out.print(end().toString());
		out.flush();
	} catch (IOException e) {
		e.printStackTrace();
	}
	return EVAL_PAGE;
}
 

@Override
public int doAfterBody() throws JspException {
    try {
        if (i == 3) {
            bodyOut.writeOut(bodyOut.getEnclosingWriter());
            return SKIP_BODY;
        }

        pageContext.setAttribute("member", atts[i]);
        i++;
        return EVAL_BODY_BUFFERED;
    } catch (IOException ex) {
        throw new JspTagException(ex.toString());
    }
}
 

@Override
public int doAfterBody() throws JspException {
    try {
        String s = bodyOut.getString();
        System.err.println(s);
        if (toBrowser)
            bodyOut.writeOut(bodyOut.getEnclosingWriter());
        return SKIP_BODY;
    } catch (IOException ex) {
        throw new JspTagException(ex.toString());
    }
}
 

/**
 * Actions after some body has been evaluated.
 */
@Override
public int doAfterBody() throws JspTagException {
  // we have already checked the condition in doStartTag
  try {
    BodyContent body = getBodyContent();
    JspWriter out = body.getEnclosingWriter();
    out.print( body.getString() );
    body.clearBody();
  } catch (IOException e) {
    throw new NavigatorRuntimeException("Problem occurred when writing to JspWriter in logic:then.", e);
  }

  return SKIP_BODY;
}
 

/**
 * Process the end tag.
 */
@Override
public int doEndTag() throws JspException {
  // establish old lexical scope, back to outside of the loop
  FrameworkUtils.getContextTag(pageContext).getContextManager().popScope();

  if (!foundWhen())
    throw new JspTagException("<tolog:choose> : must have one or more"
            + " <tolog:when> tags nested within it, but none were found.\n");
  
  return EVAL_PAGE;
}
 

public int doEndTag() throws JspTagException {
	try {
		JspWriter out = this.pageContext.getOut();
		out.print(end().toString());
	} catch (IOException e) {
		e.printStackTrace();
	}
	return EVAL_PAGE;
}
 

@Override
protected final int doStartTagInternal() throws Exception {
	String resolvedPath = getPath();
	if (!isIgnoreNestedPath()) {
		String nestedPath = (String) pageContext.getAttribute(
				NestedPathTag.NESTED_PATH_VARIABLE_NAME, PageContext.REQUEST_SCOPE);
		// only prepend if not already an absolute path
		if (nestedPath != null && !resolvedPath.startsWith(nestedPath) &&
				!resolvedPath.equals(nestedPath.substring(0, nestedPath.length() - 1))) {
			resolvedPath = nestedPath + resolvedPath;
		}
	}

	try {
		this.status = new BindStatus(getRequestContext(), resolvedPath, isHtmlEscape());
	}
	catch (IllegalStateException ex) {
		throw new JspTagException(ex.getMessage());
	}

	// Save previous status values, for re-exposure at the end of this tag.
	this.previousPageStatus = pageContext.getAttribute(STATUS_VARIABLE_NAME, PageContext.PAGE_SCOPE);
	this.previousRequestStatus = pageContext.getAttribute(STATUS_VARIABLE_NAME, PageContext.REQUEST_SCOPE);

	// Expose this tag's status object as PageContext attribute,
	// making it available for JSP EL.
	pageContext.removeAttribute(STATUS_VARIABLE_NAME, PageContext.PAGE_SCOPE);
	pageContext.setAttribute(STATUS_VARIABLE_NAME, this.status, PageContext.REQUEST_SCOPE);

	return EVAL_BODY_INCLUDE;
}
 

/**
 * Print the body content to the enclosing writer.
 * Return SKIP_BODY by default.
 */
@Override
public int doAfterBody() throws JspTagException {
  // put out the evaluated body
  try {
    BodyContent body = getBodyContent();
    body.getEnclosingWriter().print( body.getString() );
  } catch (IOException ioe) {
    throw new NavigatorRuntimeException("Error in QueryExecutingTag.", ioe);
  }

  // Skip the body by default.
  return SKIP_BODY;
}