Update of /cvsroot/displaytag/table-ben/src/com/tablelib/core/taglibs
In directory sc8-pr-cvs1:/tmp/cvs-serv11591
Added Files:
BaseTag.java
Log Message:
--- NEW FILE: BaseTag.java ---
/**
* Created by IntelliJ IDEA.
* User: Benjamin Simpson
* Date: Jan 11, 2003
* Time: 8:44:51 PM
*/
package com.tablelib.core.taglibs;
import org.apache.commons.beanutils.PropertyUtils;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import java.io.IOException;
import java.util.Properties;
import java.util.List;
import java.util.Collections;
import java.text.MessageFormat;
import java.lang.reflect.InvocationTargetException;
public class BaseTag extends javax.servlet.jsp.tagext.BodyTagSupport {
private HttpServletRequest req = null;
/**
* Get the request from state : pageContext if null
* @return HttpServletRequest
*/
protected HttpServletRequest getRequest() {
return req != null ? req : initRequest();
}
/**
* Get the request from the pageContext
* @return
*/
private HttpServletRequest initRequest() {
req = (HttpServletRequest) this.pageContext.getRequest();
return req;
}
public HttpServletResponse getResponse() {
return (HttpServletResponse) this.pageContext.getResponse();
}
public JspWriter getOut() {
return pageContext.getOut();
}
public void setPageContextAttribute(String key, Object val) {
pageContext.setAttribute(key,val);
}
protected String getParameter(String parm) {
return getRequest().getParameter(parm);
}
protected String getParameter(String parmname, String def) {
String val = getParameter(parmname);
return val == null?def:val;
}
public static String getProperty(String key) {
if(prop == null) loadDefaultProperties();
return prop.getProperty(key);
}
public static void setProperty(String key, String value) {
if(prop == null) loadDefaultProperties();
prop.setProperty(key,value);
}
protected static Properties getProperties() {
return prop;
}
private static Properties prop = null;
private static void loadDefaultProperties() {
prop = new Properties();
prop.setProperty("basic.show.header", "true");
prop.setProperty("basic.msg.empty_list", "Nothing found to display");
prop.setProperty("sort.behavior", "page");
prop.setProperty("export.banner", "Export options: {0}");
prop.setProperty("export.banner.sepchar", " | ");
prop.setProperty("export.csv", "true");
prop.setProperty("export.csv.label", "CSV");
prop.setProperty("export.csv.mimetype", "text/csv");
prop.setProperty("export.csv.include_header", "false");
prop.setProperty("export.excel", "true");
prop.setProperty("export.excel.label", "Excel");
prop.setProperty("export.excel.mimetype", "application/vnd.ms-excel");
prop.setProperty("export.excel.include_header", "false");
prop.setProperty("export.xml", "true");
prop.setProperty("export.xml.label", "XML");
prop.setProperty("export.xml.mimetype", "text/xml");
prop.setProperty("export.amount", "page");
prop.setProperty("export.decorated", "true");
prop.setProperty("paging.banner.placement", "top");
prop.setProperty("paging.banner.item_name", "item");
prop.setProperty("paging.banner.items_name", "items");
prop.setProperty("paging.banner.no_items_found", "No {0} found.");
prop.setProperty("paging.banner.one_item_found", "1 {0} found.");
prop.setProperty("paging.banner.all_items_found", "{0} {1} found, showing all
{2}");
prop.setProperty("paging.banner.some_items_found", "{0} {1} found, displaying
{2} to {3}");
prop.setProperty("paging.banner.include_first_last", "false");
prop.setProperty("paging.banner.first_label", "First");
prop.setProperty("paging.banner.last_label", "Last");
prop.setProperty("paging.banner.prev_label", "Prev");
prop.setProperty("paging.banner.next_label", "Next");
prop.setProperty("paging.banner.group_size", "8");
prop.setProperty("error.msg.cant_find_bean", "Could not find bean {0} in scope
{1}");
prop.setProperty("error.msg.invalid_bean", "The bean that you gave me is not a
Collection I understand: {0}");
prop.setProperty("error.msg.no_column_tags", "Please provide column tags.");
prop.setProperty("error.msg.illegal_access_exception", "IllegalAccessException
trying to fetch property {0} on bean {1}");
prop.setProperty("error.msg.invocation_target_exception",
"InvocationTargetException trying to fetch property {0} on bean {1}");
prop.setProperty("error.msg.nosuchmethod_exception", "NoSuchMethodException
trying to fetch property {0} on bean {1}");
prop.setProperty("error.msg.invalid_decorator", "Decorator class is not a
subclass of TableDecorator");
prop.setProperty("error.msg.invalid_page", "Invalid page ({0}) provided, value
should be between 1 and {1}");
}
protected List getListData(String key, String property, int scope) {
Object ret = pageContext.getAttribute(key,scope);
if(property == null) return (List) ret;
try {
return (List) PropertyUtils.getProperty(ret,property);
} catch(Exception e) {
e.printStackTrace();
return Collections.EMPTY_LIST;
}
}
public Object lookup(String name,
String property,
int scope)
throws JspException {
// Look up the requested bean, and return if requested
Object bean = pageContext.findAttribute(name);
if (property == null) return bean;
if (bean == null) {
Object[] objs = {name, scope+""};
throw new JspException(
MessageFormat.format(getProperty("error.msg.cant_find_bean"),
objs));
}
// Locate and return the specified property
try {
return PropertyUtils.getProperty(bean, property);
} catch (IllegalAccessException e) {
Object[] objs = {property, name};
throw new JspException(
MessageFormat.format(getProperty("error.msg.illegal_access_exception"), objs));
} catch (InvocationTargetException e) {
Object[] objs = {property, name};
throw new JspException(
MessageFormat.format(getProperty("error.msg.invocation_target_exception"), objs));
} catch (NoSuchMethodException e) {
Object[] objs = {property, name};
throw new JspException(
MessageFormat.format(getProperty("error.msg.nosuchmethod_exception"), objs));
}
}
public Object lookup(String name, int scope) throws JspException {
return pageContext.getAttribute(name, scope);
}
protected void write(String val) throws JspTagException {
try {
pageContext.getOut().write(val);
} catch (IOException e) {
throw new JspTagException(
"JspWriter trew an ioexception: " + e.getMessage());
}
}
public void write(Object val) throws JspTagException {
this.write(val.toString());
}
}
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