Java Code Examples for org.apache.jasper.compiler.tagplugin.TagPluginContext#generateAttribute()
The following examples show how to use
org.apache.jasper.compiler.tagplugin.TagPluginContext#generateAttribute() .
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Example 1
| Source File: If.java From Tomcat8-Source-Read with MIT License | 6 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
String condV = ctxt.getTemporaryVariableName();
ctxt.generateJavaSource("boolean " + condV + "=");
ctxt.generateAttribute("test");
ctxt.generateJavaSource(";");
if (ctxt.isAttributeSpecified("var")) {
String scope = "PageContext.PAGE_SCOPE";
if (ctxt.isAttributeSpecified("scope")) {
String scopeStr = ctxt.getConstantAttribute("scope");
if ("request".equals(scopeStr)) {
scope = "PageContext.REQUEST_SCOPE";
} else if ("session".equals(scopeStr)) {
scope = "PageContext.SESSION_SCOPE";
} else if ("application".equals(scopeStr)) {
scope = "PageContext.APPLICATION_SCOPE";
}
}
ctxt.generateJavaSource("_jspx_page_context.setAttribute(");
ctxt.generateAttribute("var");
ctxt.generateJavaSource(", new Boolean(" + condV + ")," + scope + ");");
}
ctxt.generateJavaSource("if (" + condV + "){");
ctxt.generateBody();
ctxt.generateJavaSource("}");
}
Example 2
| Source File: When.java From tomcatsrc with Apache License 2.0 | 6 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
// Get the parent context to determine if this is the first <c:when>
TagPluginContext parentContext = ctxt.getParentContext();
if (parentContext == null) {
ctxt.dontUseTagPlugin();
return;
}
if ("true".equals(parentContext.getPluginAttribute("hasBeenHere"))) {
ctxt.generateJavaSource("} else if(");
// See comment below for the reason we generate the extra "}" here.
}
else {
ctxt.generateJavaSource("if(");
parentContext.setPluginAttribute("hasBeenHere", "true");
}
ctxt.generateAttribute("test");
ctxt.generateJavaSource("){");
ctxt.generateBody();
// We don't generate the closing "}" for the "if" here because there
// may be whitespaces in between <c:when>'s. Instead we delay
// generating it until the next <c:when> or <c:otherwise> or
// <c:choose>
}
Example 3
| Source File: If.java From tomcatsrc with Apache License 2.0 | 6 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
String condV = ctxt.getTemporaryVariableName();
ctxt.generateJavaSource("boolean " + condV + "=");
ctxt.generateAttribute("test");
ctxt.generateJavaSource(";");
if (ctxt.isAttributeSpecified("var")) {
String scope = "PageContext.PAGE_SCOPE";
if (ctxt.isAttributeSpecified("scope")) {
String scopeStr = ctxt.getConstantAttribute("scope");
if ("request".equals(scopeStr)) {
scope = "PageContext.REQUEST_SCOPE";
} else if ("session".equals(scopeStr)) {
scope = "PageContext.SESSION_SCOPE";
} else if ("application".equals(scopeStr)) {
scope = "PageContext.APPLICATION_SCOPE";
}
}
ctxt.generateJavaSource("_jspx_page_context.setAttribute(");
ctxt.generateAttribute("var");
ctxt.generateJavaSource(", new Boolean(" + condV + ")," + scope + ");");
}
ctxt.generateJavaSource("if (" + condV + "){");
ctxt.generateBody();
ctxt.generateJavaSource("}");
}
Example 4
| Source File: When.java From Tomcat7.0.67 with Apache License 2.0 | 6 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
// Get the parent context to determine if this is the first <c:when>
TagPluginContext parentContext = ctxt.getParentContext();
if (parentContext == null) {
ctxt.dontUseTagPlugin();
return;
}
if ("true".equals(parentContext.getPluginAttribute("hasBeenHere"))) {
ctxt.generateJavaSource("} else if(");
// See comment below for the reason we generate the extra "}" here.
}
else {
ctxt.generateJavaSource("if(");
parentContext.setPluginAttribute("hasBeenHere", "true");
}
ctxt.generateAttribute("test");
ctxt.generateJavaSource("){");
ctxt.generateBody();
// We don't generate the closing "}" for the "if" here because there
// may be whitespaces in between <c:when>'s. Instead we delay
// generating it until the next <c:when> or <c:otherwise> or
// <c:choose>
}
Example 5
| Source File: If.java From Tomcat7.0.67 with Apache License 2.0 | 6 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
String condV = ctxt.getTemporaryVariableName();
ctxt.generateJavaSource("boolean " + condV + "=");
ctxt.generateAttribute("test");
ctxt.generateJavaSource(";");
if (ctxt.isAttributeSpecified("var")) {
String scope = "PageContext.PAGE_SCOPE";
if (ctxt.isAttributeSpecified("scope")) {
String scopeStr = ctxt.getConstantAttribute("scope");
if ("request".equals(scopeStr)) {
scope = "PageContext.REQUEST_SCOPE";
} else if ("session".equals(scopeStr)) {
scope = "PageContext.SESSION_SCOPE";
} else if ("application".equals(scopeStr)) {
scope = "PageContext.APPLICATION_SCOPE";
}
}
ctxt.generateJavaSource("_jspx_page_context.setAttribute(");
ctxt.generateAttribute("var");
ctxt.generateJavaSource(", new Boolean(" + condV + ")," + scope + ");");
}
ctxt.generateJavaSource("if (" + condV + "){");
ctxt.generateBody();
ctxt.generateJavaSource("}");
}
Example 6
| Source File: Param.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
//don't support the body content
//define names of all the temp variables
String nameName = ctxt.getTemporaryVariableName();
String valueName = ctxt.getTemporaryVariableName();
String urlName = ctxt.getTemporaryVariableName();
String encName = ctxt.getTemporaryVariableName();
String index = ctxt.getTemporaryVariableName();
//if the param tag has no parents, throw a exception
TagPluginContext parent = ctxt.getParentContext();
if(parent == null){
ctxt.generateJavaSource(" throw new JspTagExcption" +
"(\"<param> outside <import> or <urlEncode>\");");
return;
}
//get the url string before adding this param
ctxt.generateJavaSource("String " + urlName + " = " +
"(String)pageContext.getAttribute(\"url_without_param\");");
//get the value of "name"
ctxt.generateJavaSource("String " + nameName + " = ");
ctxt.generateAttribute("name");
ctxt.generateJavaSource(";");
//if the "name" is null then do nothing.
//else add such string "name=value" to the url.
//and the url should be encoded
ctxt.generateJavaSource("if(" + nameName + " != null && !" + nameName + ".equals(\"\")){");
ctxt.generateJavaSource(" String " + valueName + " = ");
ctxt.generateAttribute("value");
ctxt.generateJavaSource(";");
ctxt.generateJavaSource(" if(" + valueName + " == null) " + valueName + " = \"\";");
ctxt.generateJavaSource(" String " + encName + " = pageContext.getResponse().getCharacterEncoding();");
ctxt.generateJavaSource(" " + nameName + " = java.net.URLEncoder.encode(" + nameName + ", " + encName + ");");
ctxt.generateJavaSource(" " + valueName + " = java.net.URLEncoder.encode(" + valueName + ", " + encName + ");");
ctxt.generateJavaSource(" int " + index + ";");
ctxt.generateJavaSource(" " + index + " = " + urlName + ".indexOf(\'?\');");
//if the current param is the first one, add a "?" ahead of it
//else add a "&" ahead of it
ctxt.generateJavaSource(" if(" + index + " == -1){");
ctxt.generateJavaSource(" " + urlName + " = " + urlName + " + \"?\" + " + nameName + " + \"=\" + " + valueName + ";");
ctxt.generateJavaSource(" }else{");
ctxt.generateJavaSource(" " + urlName + " = " + urlName + " + \"&\" + " + nameName + " + \"=\" + " + valueName + ";");
ctxt.generateJavaSource(" }");
ctxt.generateJavaSource(" pageContext.setAttribute(\"url_without_param\"," + urlName + ");");
ctxt.generateJavaSource("}");
}
Example 7
| Source File: ForTokens.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
boolean hasVar, hasVarStatus, hasBegin, hasEnd, hasStep;
//init the flags
hasVar = ctxt.isAttributeSpecified("var");
hasVarStatus = ctxt.isAttributeSpecified("varStatus");
hasBegin = ctxt.isAttributeSpecified("begin");
hasEnd = ctxt.isAttributeSpecified("end");
hasStep = ctxt.isAttributeSpecified("step");
if(hasVarStatus){
ctxt.dontUseTagPlugin();
return;
}
//define all the temp variables' names
String itemsName = ctxt.getTemporaryVariableName();
String delimsName = ctxt.getTemporaryVariableName();
String stName = ctxt.getTemporaryVariableName();
String beginName = ctxt.getTemporaryVariableName();
String endName = ctxt.getTemporaryVariableName();
String stepName = ctxt.getTemporaryVariableName();
String index = ctxt.getTemporaryVariableName();
String temp = ctxt.getTemporaryVariableName();
String tokensCountName = ctxt.getTemporaryVariableName();
//get the value of the "items" attribute
ctxt.generateJavaSource("String " + itemsName + " = (String)");
ctxt.generateAttribute("items");
ctxt.generateJavaSource(";");
//get the value of the "delim" attribute
ctxt.generateJavaSource("String " + delimsName + " = (String)");
ctxt.generateAttribute("delims");
ctxt.generateJavaSource(";");
//new a StringTokenizer Object according to the "items" and the "delim"
ctxt.generateJavaSource("java.util.StringTokenizer " + stName + " = " +
"new java.util.StringTokenizer(" + itemsName + ", " + delimsName + ");");
//if "begin" specified, move the token to the "begin" place
//and record the begin index. default begin place is 0.
ctxt.generateJavaSource("int " + tokensCountName + " = " + stName + ".countTokens();");
if(hasBegin){
ctxt.generateJavaSource("int " + beginName + " = " );
ctxt.generateAttribute("begin");
ctxt.generateJavaSource(";");
ctxt.generateJavaSource("for(int " + index + " = 0; " + index + " < " + beginName + " && " + stName + ".hasMoreTokens(); " + index + "++, " + stName + ".nextToken()){}");
}else{
ctxt.generateJavaSource("int " + beginName + " = 0;");
}
//when "end" is specified, if the "end" is more than the last index,
//record the end place as the last index, otherwise, record it as "end";
//default end place is the last index
if(hasEnd){
ctxt.generateJavaSource("int " + endName + " = 0;" );
ctxt.generateJavaSource("if((" + tokensCountName + " - 1) < ");
ctxt.generateAttribute("end");
ctxt.generateJavaSource("){");
ctxt.generateJavaSource(" " + endName + " = " + tokensCountName + " - 1;");
ctxt.generateJavaSource("}else{");
ctxt.generateJavaSource(" " + endName + " = ");
ctxt.generateAttribute("end");
ctxt.generateJavaSource(";}");
}else{
ctxt.generateJavaSource("int " + endName + " = " + tokensCountName + " - 1;");
}
//get the step value from "step" if specified.
//default step value is 1.
if(hasStep){
ctxt.generateJavaSource("int " + stepName + " = " );
ctxt.generateAttribute("step");
ctxt.generateJavaSource(";");
}else{
ctxt.generateJavaSource("int " + stepName + " = 1;");
}
//the loop
ctxt.generateJavaSource("for(int " + index + " = " + beginName + "; " + index + " <= " + endName + "; " + index + "++){");
ctxt.generateJavaSource(" String " + temp + " = " + stName + ".nextToken();");
ctxt.generateJavaSource(" if(((" + index + " - " + beginName + ") % " + stepName + ") == 0){");
//if var specified, put the current token into the attribute "var" defines.
if(hasVar){
String strVar = ctxt.getConstantAttribute("var");
ctxt.generateJavaSource(" pageContext.setAttribute(\"" + strVar + "\", " + temp + ");");
}
ctxt.generateBody();
ctxt.generateJavaSource(" }");
ctxt.generateJavaSource("}");
}
Example 8
| Source File: ForEach.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
String index = null;
boolean hasVarStatus = ctxt.isAttributeSpecified("varStatus");
if (hasVarStatus) {
ctxt.dontUseTagPlugin();
return;
}
hasVar = ctxt.isAttributeSpecified("var");
hasBegin = ctxt.isAttributeSpecified("begin");
hasEnd = ctxt.isAttributeSpecified("end");
hasStep = ctxt.isAttributeSpecified("step");
boolean hasItems = ctxt.isAttributeSpecified("items");
if (hasItems) {
doCollection(ctxt);
return;
}
// We must have a begin and end attributes
index = ctxt.getTemporaryVariableName();
ctxt.generateJavaSource("for (int " + index + " = ");
ctxt.generateAttribute("begin");
ctxt.generateJavaSource("; " + index + " <= ");
ctxt.generateAttribute("end");
if (hasStep) {
ctxt.generateJavaSource("; " + index + "+=");
ctxt.generateAttribute("step");
ctxt.generateJavaSource(") {");
}
else {
ctxt.generateJavaSource("; " + index + "++) {");
}
// If var is specified and the body contains an EL, then sycn
// the var attribute
if (hasVar /* && ctxt.hasEL() */) {
ctxt.generateJavaSource("_jspx_page_context.setAttribute(");
ctxt.generateAttribute("var");
ctxt.generateJavaSource(", String.valueOf(" + index + "));");
}
ctxt.generateBody();
ctxt.generateJavaSource("}");
}
Example 9
| Source File: ForTokens.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
boolean hasVar, hasVarStatus, hasBegin, hasEnd, hasStep;
//init the flags
hasVar = ctxt.isAttributeSpecified("var");
hasVarStatus = ctxt.isAttributeSpecified("varStatus");
hasBegin = ctxt.isAttributeSpecified("begin");
hasEnd = ctxt.isAttributeSpecified("end");
hasStep = ctxt.isAttributeSpecified("step");
if(hasVarStatus){
ctxt.dontUseTagPlugin();
return;
}
//define all the temp variables' names
String itemsName = ctxt.getTemporaryVariableName();
String delimsName = ctxt.getTemporaryVariableName();
String stName = ctxt.getTemporaryVariableName();
String beginName = ctxt.getTemporaryVariableName();
String endName = ctxt.getTemporaryVariableName();
String stepName = ctxt.getTemporaryVariableName();
String index = ctxt.getTemporaryVariableName();
String temp = ctxt.getTemporaryVariableName();
String tokensCountName = ctxt.getTemporaryVariableName();
//get the value of the "items" attribute
ctxt.generateJavaSource("String " + itemsName + " = (String)");
ctxt.generateAttribute("items");
ctxt.generateJavaSource(";");
//get the value of the "delim" attribute
ctxt.generateJavaSource("String " + delimsName + " = (String)");
ctxt.generateAttribute("delims");
ctxt.generateJavaSource(";");
//new a StringTokenizer Object according to the "items" and the "delim"
ctxt.generateJavaSource("java.util.StringTokenizer " + stName + " = " +
"new java.util.StringTokenizer(" + itemsName + ", " + delimsName + ");");
//if "begin" specified, move the token to the "begin" place
//and record the begin index. default begin place is 0.
ctxt.generateJavaSource("int " + tokensCountName + " = " + stName + ".countTokens();");
if(hasBegin){
ctxt.generateJavaSource("int " + beginName + " = " );
ctxt.generateAttribute("begin");
ctxt.generateJavaSource(";");
ctxt.generateJavaSource("for(int " + index + " = 0; " + index + " < " + beginName + " && " + stName + ".hasMoreTokens(); " + index + "++, " + stName + ".nextToken()){}");
}else{
ctxt.generateJavaSource("int " + beginName + " = 0;");
}
//when "end" is specified, if the "end" is more than the last index,
//record the end place as the last index, otherwise, record it as "end";
//default end place is the last index
if(hasEnd){
ctxt.generateJavaSource("int " + endName + " = 0;" );
ctxt.generateJavaSource("if((" + tokensCountName + " - 1) < ");
ctxt.generateAttribute("end");
ctxt.generateJavaSource("){");
ctxt.generateJavaSource(" " + endName + " = " + tokensCountName + " - 1;");
ctxt.generateJavaSource("}else{");
ctxt.generateJavaSource(" " + endName + " = ");
ctxt.generateAttribute("end");
ctxt.generateJavaSource(";}");
}else{
ctxt.generateJavaSource("int " + endName + " = " + tokensCountName + " - 1;");
}
//get the step value from "step" if specified.
//default step value is 1.
if(hasStep){
ctxt.generateJavaSource("int " + stepName + " = " );
ctxt.generateAttribute("step");
ctxt.generateJavaSource(";");
}else{
ctxt.generateJavaSource("int " + stepName + " = 1;");
}
//the loop
ctxt.generateJavaSource("for(int " + index + " = " + beginName + "; " + index + " <= " + endName + "; " + index + "++){");
ctxt.generateJavaSource(" String " + temp + " = " + stName + ".nextToken();");
ctxt.generateJavaSource(" if(((" + index + " - " + beginName + ") % " + stepName + ") == 0){");
//if var specified, put the current token into the attribute "var" defines.
if(hasVar){
String strVar = ctxt.getConstantAttribute("var");
ctxt.generateJavaSource(" pageContext.setAttribute(\"" + strVar + "\", " + temp + ");");
}
ctxt.generateBody();
ctxt.generateJavaSource(" }");
ctxt.generateJavaSource("}");
}
Example 10
| Source File: Out.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
//these two data member are to indicate
//whether the corresponding attribute is specified
boolean hasDefault=false, hasEscapeXml=false;
hasDefault = ctxt.isAttributeSpecified("default");
hasEscapeXml = ctxt.isAttributeSpecified("escapeXml");
//strValName, strEscapeXmlName & strDefName are two variables' name
//standing for value, escapeXml and default attribute
String strObjectName = ctxt.getTemporaryVariableName();
String strValName = ctxt.getTemporaryVariableName();
String strDefName = ctxt.getTemporaryVariableName();
String strEscapeXmlName = ctxt.getTemporaryVariableName();
String strSkipBodyName = ctxt.getTemporaryVariableName();
//according to the tag file, the value attribute is mandatory.
ctxt.generateImport("java.io.Reader");
ctxt.generateJavaSource("Object " + strObjectName + "=");
ctxt.generateAttribute("value");
ctxt.generateJavaSource(";");
ctxt.generateJavaSource("String " + strValName + "=null;");
ctxt.generateJavaSource("if(!(" + strObjectName +
" instanceof Reader) && "+ strObjectName + " != null){");
ctxt.generateJavaSource(
strValName + " = " + strObjectName + ".toString();");
ctxt.generateJavaSource("}");
//initiate the strDefName with null.
//if the default has been specified, then assign the value to it;
ctxt.generateJavaSource("String " + strDefName + " = null;");
if(hasDefault){
ctxt.generateJavaSource("if(");
ctxt.generateAttribute("default");
ctxt.generateJavaSource(" != null){");
ctxt.generateJavaSource(strDefName + " = (");
ctxt.generateAttribute("default");
ctxt.generateJavaSource(").toString();");
ctxt.generateJavaSource("}");
}
//initiate the strEscapeXmlName with true;
//if the escapeXml is specified, assign the value to it;
ctxt.generateJavaSource("boolean " + strEscapeXmlName + " = true;");
if(hasEscapeXml){
ctxt.generateJavaSource(strEscapeXmlName + " = ");
ctxt.generateAttribute("escapeXml");
ctxt.generateJavaSource(";");
}
//main part.
ctxt.generateJavaSource(
"boolean " + strSkipBodyName + " = " +
"org.apache.jasper.tagplugins.jstl.core.Out.output(out, " +
strObjectName + ", " + strValName + ", " + strDefName + ", " +
strEscapeXmlName + ");");
ctxt.generateJavaSource("if(!" + strSkipBodyName + ") {");
ctxt.generateBody();
ctxt.generateJavaSource("}");
}
Example 11
| Source File: Redirect.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
//flag for the existence of the "context"
boolean hasContext = ctxt.isAttributeSpecified("context");
//names of the temp variables
String urlName = ctxt.getTemporaryVariableName();
String contextName = ctxt.getTemporaryVariableName();
String baseUrlName = ctxt.getTemporaryVariableName();
String resultName = ctxt.getTemporaryVariableName();
String responseName = ctxt.getTemporaryVariableName();
//get context
ctxt.generateJavaSource("String " + contextName + " = null;");
if(hasContext){
ctxt.generateJavaSource(contextName + " = ");
ctxt.generateAttribute("context");
ctxt.generateJavaSource(";");
}
//get the url
ctxt.generateJavaSource("String " + urlName + " = ");
ctxt.generateAttribute("url");
ctxt.generateJavaSource(";");
//get the raw url according to "url" and "context"
ctxt.generateJavaSource("String " + baseUrlName + " = " +
"org.apache.jasper.tagplugins.jstl.Util.resolveUrl(" + urlName + ", " + contextName + ", pageContext);");
ctxt.generateJavaSource("pageContext.setAttribute" +
"(\"url_without_param\", " + baseUrlName + ");");
//add params
ctxt.generateBody();
ctxt.generateJavaSource("String " + resultName + " = " +
"(String)pageContext.getAttribute(\"url_without_param\");");
ctxt.generateJavaSource("pageContext.removeAttribute" +
"(\"url_without_param\");");
//get the response object
ctxt.generateJavaSource("HttpServletResponse " + responseName + " = " +
"((HttpServletResponse) pageContext.getResponse());");
//if the url is relative, encode it
ctxt.generateJavaSource("if(!org.apache.jasper.tagplugins.jstl.Util.isAbsoluteUrl(" + resultName + ")){");
ctxt.generateJavaSource(" " + resultName + " = "
+ responseName + ".encodeRedirectURL(" + resultName + ");");
ctxt.generateJavaSource("}");
//do redirect
ctxt.generateJavaSource("try{");
ctxt.generateJavaSource(" " + responseName + ".sendRedirect(" + resultName + ");");
ctxt.generateJavaSource("}catch(java.io.IOException ex){");
ctxt.generateJavaSource(" throw new JspTagException(ex.toString(), ex);");
ctxt.generateJavaSource("}");
}
Example 12
| Source File: Url.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
//flags
boolean hasVar, hasContext, hasScope;
//init flags
hasVar = ctxt.isAttributeSpecified("var");
hasContext = ctxt.isAttributeSpecified("context");
hasScope = ctxt.isAttributeSpecified("scope");
//define name of the temp variables
String valueName = ctxt.getTemporaryVariableName();
String contextName = ctxt.getTemporaryVariableName();
String baseUrlName = ctxt.getTemporaryVariableName();
String resultName = ctxt.getTemporaryVariableName();
String responseName = ctxt.getTemporaryVariableName();
//get the scope
String strScope = "page";
if(hasScope){
strScope = ctxt.getConstantAttribute("scope");
}
int iScope = Util.getScope(strScope);
//get the value
ctxt.generateJavaSource("String " + valueName + " = ");
ctxt.generateAttribute("value");
ctxt.generateJavaSource(";");
//get the context
ctxt.generateJavaSource("String " + contextName + " = null;");
if(hasContext){
ctxt.generateJavaSource(contextName + " = ");
ctxt.generateAttribute("context");
ctxt.generateJavaSource(";");
}
//get the raw url
ctxt.generateJavaSource("String " + baseUrlName + " = " +
"org.apache.jasper.tagplugins.jstl.Util.resolveUrl(" + valueName + ", " + contextName + ", pageContext);");
ctxt.generateJavaSource("pageContext.setAttribute" +
"(\"url_without_param\", " + baseUrlName + ");");
//add params
ctxt.generateBody();
ctxt.generateJavaSource("String " + resultName + " = " +
"(String)pageContext.getAttribute(\"url_without_param\");");
ctxt.generateJavaSource("pageContext.removeAttribute(\"url_without_param\");");
//if the url is relative, encode it
ctxt.generateJavaSource("if(!org.apache.jasper.tagplugins.jstl.Util.isAbsoluteUrl(" + resultName + ")){");
ctxt.generateJavaSource(" HttpServletResponse " + responseName + " = " +
"((HttpServletResponse) pageContext.getResponse());");
ctxt.generateJavaSource(" " + resultName + " = "
+ responseName + ".encodeURL(" + resultName + ");");
ctxt.generateJavaSource("}");
//if "var" is specified, the url string store in the attribute var defines
if(hasVar){
String strVar = ctxt.getConstantAttribute("var");
ctxt.generateJavaSource("pageContext.setAttribute" +
"(\"" + strVar + "\", " + resultName + ", " + iScope + ");");
//if var is not specified, just print out the url string
}else{
ctxt.generateJavaSource("try{");
ctxt.generateJavaSource(" pageContext.getOut().print(" + resultName + ");");
ctxt.generateJavaSource("}catch(java.io.IOException ex){");
ctxt.generateJavaSource(" throw new JspTagException(ex.toString(), ex);");
ctxt.generateJavaSource("}");
}
}
Example 13
| Source File: Param.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
//don't support the body content
//define names of all the temp variables
String nameName = ctxt.getTemporaryVariableName();
String valueName = ctxt.getTemporaryVariableName();
String urlName = ctxt.getTemporaryVariableName();
String encName = ctxt.getTemporaryVariableName();
String index = ctxt.getTemporaryVariableName();
//if the param tag has no parents, throw a exception
TagPluginContext parent = ctxt.getParentContext();
if(parent == null){
ctxt.generateJavaSource(" throw new JspTagExcption" +
"(\"<param> outside <import> or <urlEncode>\");");
return;
}
//get the url string before adding this param
ctxt.generateJavaSource("String " + urlName + " = " +
"(String)pageContext.getAttribute(\"url_without_param\");");
//get the value of "name"
ctxt.generateJavaSource("String " + nameName + " = ");
ctxt.generateAttribute("name");
ctxt.generateJavaSource(";");
//if the "name" is null then do nothing.
//else add such string "name=value" to the url.
//and the url should be encoded
ctxt.generateJavaSource("if(" + nameName + " != null && !" + nameName + ".equals(\"\")){");
ctxt.generateJavaSource(" String " + valueName + " = ");
ctxt.generateAttribute("value");
ctxt.generateJavaSource(";");
ctxt.generateJavaSource(" if(" + valueName + " == null) " + valueName + " = \"\";");
ctxt.generateJavaSource(" String " + encName + " = pageContext.getResponse().getCharacterEncoding();");
ctxt.generateJavaSource(" " + nameName + " = java.net.URLEncoder.encode(" + nameName + ", " + encName + ");");
ctxt.generateJavaSource(" " + valueName + " = java.net.URLEncoder.encode(" + valueName + ", " + encName + ");");
ctxt.generateJavaSource(" int " + index + ";");
ctxt.generateJavaSource(" " + index + " = " + urlName + ".indexOf(\'?\');");
//if the current param is the first one, add a "?" ahead of it
//else add a "&" ahead of it
ctxt.generateJavaSource(" if(" + index + " == -1){");
ctxt.generateJavaSource(" " + urlName + " = " + urlName + " + \"?\" + " + nameName + " + \"=\" + " + valueName + ";");
ctxt.generateJavaSource(" }else{");
ctxt.generateJavaSource(" " + urlName + " = " + urlName + " + \"&\" + " + nameName + " + \"=\" + " + valueName + ";");
ctxt.generateJavaSource(" }");
ctxt.generateJavaSource(" pageContext.setAttribute(\"url_without_param\"," + urlName + ");");
ctxt.generateJavaSource("}");
}
Example 14
| Source File: ForEach.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
String index = null;
boolean hasVarStatus = ctxt.isAttributeSpecified("varStatus");
if (hasVarStatus) {
ctxt.dontUseTagPlugin();
return;
}
hasVar = ctxt.isAttributeSpecified("var");
hasBegin = ctxt.isAttributeSpecified("begin");
hasEnd = ctxt.isAttributeSpecified("end");
hasStep = ctxt.isAttributeSpecified("step");
boolean hasItems = ctxt.isAttributeSpecified("items");
if (hasItems) {
doCollection(ctxt);
return;
}
// We must have a begin and end attributes
index = ctxt.getTemporaryVariableName();
ctxt.generateJavaSource("for (int " + index + " = ");
ctxt.generateAttribute("begin");
ctxt.generateJavaSource("; " + index + " <= ");
ctxt.generateAttribute("end");
if (hasStep) {
ctxt.generateJavaSource("; " + index + "+=");
ctxt.generateAttribute("step");
ctxt.generateJavaSource(") {");
}
else {
ctxt.generateJavaSource("; " + index + "++) {");
}
// If var is specified and the body contains an EL, then sycn
// the var attribute
if (hasVar /* && ctxt.hasEL() */) {
ctxt.generateJavaSource("_jspx_page_context.setAttribute(");
ctxt.generateAttribute("var");
ctxt.generateJavaSource(", String.valueOf(" + index + "));");
}
ctxt.generateBody();
ctxt.generateJavaSource("}");
}
Example 15
| Source File: ForTokens.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
boolean hasVar, hasVarStatus, hasBegin, hasEnd, hasStep;
//init the flags
hasVar = ctxt.isAttributeSpecified("var");
hasVarStatus = ctxt.isAttributeSpecified("varStatus");
hasBegin = ctxt.isAttributeSpecified("begin");
hasEnd = ctxt.isAttributeSpecified("end");
hasStep = ctxt.isAttributeSpecified("step");
if(hasVarStatus){
ctxt.dontUseTagPlugin();
return;
}
//define all the temp variables' names
String itemsName = ctxt.getTemporaryVariableName();
String delimsName = ctxt.getTemporaryVariableName();
String stName = ctxt.getTemporaryVariableName();
String beginName = ctxt.getTemporaryVariableName();
String endName = ctxt.getTemporaryVariableName();
String stepName = ctxt.getTemporaryVariableName();
String index = ctxt.getTemporaryVariableName();
String temp = ctxt.getTemporaryVariableName();
String tokensCountName = ctxt.getTemporaryVariableName();
//get the value of the "items" attribute
ctxt.generateJavaSource("String " + itemsName + " = (String)");
ctxt.generateAttribute("items");
ctxt.generateJavaSource(";");
//get the value of the "delim" attribute
ctxt.generateJavaSource("String " + delimsName + " = (String)");
ctxt.generateAttribute("delims");
ctxt.generateJavaSource(";");
//new a StringTokenizer Object according to the "items" and the "delim"
ctxt.generateJavaSource("java.util.StringTokenizer " + stName + " = " +
"new java.util.StringTokenizer(" + itemsName + ", " + delimsName + ");");
//if "begin" specified, move the token to the "begin" place
//and record the begin index. default begin place is 0.
ctxt.generateJavaSource("int " + tokensCountName + " = " + stName + ".countTokens();");
if(hasBegin){
ctxt.generateJavaSource("int " + beginName + " = " );
ctxt.generateAttribute("begin");
ctxt.generateJavaSource(";");
ctxt.generateJavaSource("for(int " + index + " = 0; " + index + " < " + beginName + " && " + stName + ".hasMoreTokens(); " + index + "++, " + stName + ".nextToken()){}");
}else{
ctxt.generateJavaSource("int " + beginName + " = 0;");
}
//when "end" is specified, if the "end" is more than the last index,
//record the end place as the last index, otherwise, record it as "end";
//default end place is the last index
if(hasEnd){
ctxt.generateJavaSource("int " + endName + " = 0;" );
ctxt.generateJavaSource("if((" + tokensCountName + " - 1) < ");
ctxt.generateAttribute("end");
ctxt.generateJavaSource("){");
ctxt.generateJavaSource(" " + endName + " = " + tokensCountName + " - 1;");
ctxt.generateJavaSource("}else{");
ctxt.generateJavaSource(" " + endName + " = ");
ctxt.generateAttribute("end");
ctxt.generateJavaSource(";}");
}else{
ctxt.generateJavaSource("int " + endName + " = " + tokensCountName + " - 1;");
}
//get the step value from "step" if specified.
//default step value is 1.
if(hasStep){
ctxt.generateJavaSource("int " + stepName + " = " );
ctxt.generateAttribute("step");
ctxt.generateJavaSource(";");
}else{
ctxt.generateJavaSource("int " + stepName + " = 1;");
}
//the loop
ctxt.generateJavaSource("for(int " + index + " = " + beginName + "; " + index + " <= " + endName + "; " + index + "++){");
ctxt.generateJavaSource(" String " + temp + " = " + stName + ".nextToken();");
ctxt.generateJavaSource(" if(((" + index + " - " + beginName + ") % " + stepName + ") == 0){");
//if var specified, put the current token into the attribute "var" defines.
if(hasVar){
String strVar = ctxt.getConstantAttribute("var");
ctxt.generateJavaSource(" pageContext.setAttribute(\"" + strVar + "\", " + temp + ");");
}
ctxt.generateBody();
ctxt.generateJavaSource(" }");
ctxt.generateJavaSource("}");
}
Example 16
| Source File: Out.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
//these two data member are to indicate
//whether the corresponding attribute is specified
boolean hasDefault=false, hasEscapeXml=false;
hasDefault = ctxt.isAttributeSpecified("default");
hasEscapeXml = ctxt.isAttributeSpecified("escapeXml");
//strValName, strEscapeXmlName & strDefName are two variables' name
//standing for value, escapeXml and default attribute
String strObjectName = ctxt.getTemporaryVariableName();
String strValName = ctxt.getTemporaryVariableName();
String strDefName = ctxt.getTemporaryVariableName();
String strEscapeXmlName = ctxt.getTemporaryVariableName();
String strSkipBodyName = ctxt.getTemporaryVariableName();
//according to the tag file, the value attribute is mandatory.
ctxt.generateImport("java.io.Reader");
ctxt.generateJavaSource("Object " + strObjectName + "=");
ctxt.generateAttribute("value");
ctxt.generateJavaSource(";");
ctxt.generateJavaSource("String " + strValName + "=null;");
ctxt.generateJavaSource("if(!(" + strObjectName +
" instanceof Reader) && "+ strObjectName + " != null){");
ctxt.generateJavaSource(
strValName + " = " + strObjectName + ".toString();");
ctxt.generateJavaSource("}");
//initiate the strDefName with null.
//if the default has been specified, then assign the value to it;
ctxt.generateJavaSource("String " + strDefName + " = null;");
if(hasDefault){
ctxt.generateJavaSource("if(");
ctxt.generateAttribute("default");
ctxt.generateJavaSource(" != null){");
ctxt.generateJavaSource(strDefName + " = (");
ctxt.generateAttribute("default");
ctxt.generateJavaSource(").toString();");
ctxt.generateJavaSource("}");
}
//initiate the strEscapeXmlName with true;
//if the escapeXml is specified, assign the value to it;
ctxt.generateJavaSource("boolean " + strEscapeXmlName + " = true;");
if(hasEscapeXml){
ctxt.generateJavaSource(strEscapeXmlName + " = ");
ctxt.generateAttribute("escapeXml");
ctxt.generateJavaSource(";");
}
//main part.
ctxt.generateJavaSource(
"boolean " + strSkipBodyName + " = " +
"org.apache.jasper.tagplugins.jstl.core.Out.output(out, " +
strObjectName + ", " + strValName + ", " + strDefName + ", " +
strEscapeXmlName + ");");
ctxt.generateJavaSource("if(!" + strSkipBodyName + ") {");
ctxt.generateBody();
ctxt.generateJavaSource("}");
}
Example 17
| Source File: Out.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
//these two data member are to indicate
//whether the corresponding attribute is specified
boolean hasDefault=false, hasEscapeXml=false;
hasDefault = ctxt.isAttributeSpecified("default");
hasEscapeXml = ctxt.isAttributeSpecified("escapeXml");
//strValName, strEscapeXmlName & strDefName are two variables' name
//standing for value, escapeXml and default attribute
String strObjectName = ctxt.getTemporaryVariableName();
String strValName = ctxt.getTemporaryVariableName();
String strDefName = ctxt.getTemporaryVariableName();
String strEscapeXmlName = ctxt.getTemporaryVariableName();
String strSkipBodyName = ctxt.getTemporaryVariableName();
//according to the tag file, the value attribute is mandatory.
ctxt.generateImport("java.io.Reader");
ctxt.generateJavaSource("Object " + strObjectName + "=");
ctxt.generateAttribute("value");
ctxt.generateJavaSource(";");
ctxt.generateJavaSource("String " + strValName + "=null;");
ctxt.generateJavaSource("if(!(" + strObjectName +
" instanceof Reader) && "+ strObjectName + " != null){");
ctxt.generateJavaSource(
strValName + " = " + strObjectName + ".toString();");
ctxt.generateJavaSource("}");
//initiate the strDefName with null.
//if the default has been specified, then assign the value to it;
ctxt.generateJavaSource("String " + strDefName + " = null;");
if(hasDefault){
ctxt.generateJavaSource("if(");
ctxt.generateAttribute("default");
ctxt.generateJavaSource(" != null){");
ctxt.generateJavaSource(strDefName + " = (");
ctxt.generateAttribute("default");
ctxt.generateJavaSource(").toString();");
ctxt.generateJavaSource("}");
}
//initiate the strEscapeXmlName with true;
//if the escapeXml is specified, assign the value to it;
ctxt.generateJavaSource("boolean " + strEscapeXmlName + " = true;");
if(hasEscapeXml){
ctxt.generateJavaSource(strEscapeXmlName + " = ");
ctxt.generateAttribute("escapeXml");
ctxt.generateJavaSource(";");
}
//main part.
ctxt.generateJavaSource(
"boolean " + strSkipBodyName + " = " +
"org.apache.jasper.tagplugins.jstl.core.Out.output(out, " +
strObjectName + ", " + strValName + ", " + strDefName + ", " +
strEscapeXmlName + ");");
ctxt.generateJavaSource("if(!" + strSkipBodyName + ") {");
ctxt.generateBody();
ctxt.generateJavaSource("}");
}
Example 18
| Source File: Redirect.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
//flag for the existence of the "context"
boolean hasContext = ctxt.isAttributeSpecified("context");
//names of the temp variables
String urlName = ctxt.getTemporaryVariableName();
String contextName = ctxt.getTemporaryVariableName();
String baseUrlName = ctxt.getTemporaryVariableName();
String resultName = ctxt.getTemporaryVariableName();
String responseName = ctxt.getTemporaryVariableName();
//get context
ctxt.generateJavaSource("String " + contextName + " = null;");
if(hasContext){
ctxt.generateJavaSource(contextName + " = ");
ctxt.generateAttribute("context");
ctxt.generateJavaSource(";");
}
//get the url
ctxt.generateJavaSource("String " + urlName + " = ");
ctxt.generateAttribute("url");
ctxt.generateJavaSource(";");
//get the raw url according to "url" and "context"
ctxt.generateJavaSource("String " + baseUrlName + " = " +
"org.apache.jasper.tagplugins.jstl.Util.resolveUrl(" + urlName + ", " + contextName + ", pageContext);");
ctxt.generateJavaSource("pageContext.setAttribute" +
"(\"url_without_param\", " + baseUrlName + ");");
//add params
ctxt.generateBody();
ctxt.generateJavaSource("String " + resultName + " = " +
"(String)pageContext.getAttribute(\"url_without_param\");");
ctxt.generateJavaSource("pageContext.removeAttribute" +
"(\"url_without_param\");");
//get the response object
ctxt.generateJavaSource("HttpServletResponse " + responseName + " = " +
"((HttpServletResponse) pageContext.getResponse());");
//if the url is relative, encode it
ctxt.generateJavaSource("if(!org.apache.jasper.tagplugins.jstl.Util.isAbsoluteUrl(" + resultName + ")){");
ctxt.generateJavaSource(" " + resultName + " = "
+ responseName + ".encodeRedirectURL(" + resultName + ");");
ctxt.generateJavaSource("}");
//do redirect
ctxt.generateJavaSource("try{");
ctxt.generateJavaSource(" " + responseName + ".sendRedirect(" + resultName + ");");
ctxt.generateJavaSource("}catch(java.io.IOException ex){");
ctxt.generateJavaSource(" throw new JspTagException(ex.toString(), ex);");
ctxt.generateJavaSource("}");
}
Example 19
| Source File: Url.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
//flags
boolean hasVar, hasContext, hasScope;
//init flags
hasVar = ctxt.isAttributeSpecified("var");
hasContext = ctxt.isAttributeSpecified("context");
hasScope = ctxt.isAttributeSpecified("scope");
//define name of the temp variables
String valueName = ctxt.getTemporaryVariableName();
String contextName = ctxt.getTemporaryVariableName();
String baseUrlName = ctxt.getTemporaryVariableName();
String resultName = ctxt.getTemporaryVariableName();
String responseName = ctxt.getTemporaryVariableName();
//get the scope
String strScope = "page";
if(hasScope){
strScope = ctxt.getConstantAttribute("scope");
}
int iScope = Util.getScope(strScope);
//get the value
ctxt.generateJavaSource("String " + valueName + " = ");
ctxt.generateAttribute("value");
ctxt.generateJavaSource(";");
//get the context
ctxt.generateJavaSource("String " + contextName + " = null;");
if(hasContext){
ctxt.generateJavaSource(contextName + " = ");
ctxt.generateAttribute("context");
ctxt.generateJavaSource(";");
}
//get the raw url
ctxt.generateJavaSource("String " + baseUrlName + " = " +
"org.apache.jasper.tagplugins.jstl.Util.resolveUrl(" + valueName + ", " + contextName + ", pageContext);");
ctxt.generateJavaSource("pageContext.setAttribute" +
"(\"url_without_param\", " + baseUrlName + ");");
//add params
ctxt.generateBody();
ctxt.generateJavaSource("String " + resultName + " = " +
"(String)pageContext.getAttribute(\"url_without_param\");");
ctxt.generateJavaSource("pageContext.removeAttribute(\"url_without_param\");");
//if the url is relative, encode it
ctxt.generateJavaSource("if(!org.apache.jasper.tagplugins.jstl.Util.isAbsoluteUrl(" + resultName + ")){");
ctxt.generateJavaSource(" HttpServletResponse " + responseName + " = " +
"((HttpServletResponse) pageContext.getResponse());");
ctxt.generateJavaSource(" " + resultName + " = "
+ responseName + ".encodeURL(" + resultName + ");");
ctxt.generateJavaSource("}");
//if "var" is specified, the url string store in the attribute var defines
if(hasVar){
String strVar = ctxt.getConstantAttribute("var");
ctxt.generateJavaSource("pageContext.setAttribute" +
"(\"" + strVar + "\", " + resultName + ", " + iScope + ");");
//if var is not specified, just print out the url string
}else{
ctxt.generateJavaSource("try{");
ctxt.generateJavaSource(" pageContext.getOut().print(" + resultName + ");");
ctxt.generateJavaSource("}catch(java.io.IOException ex){");
ctxt.generateJavaSource(" throw new JspTagException(ex.toString(), ex);");
ctxt.generateJavaSource("}");
}
}
Example 20
| Source File: ForEach.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
@Override
public void doTag(TagPluginContext ctxt) {
String index = null;
boolean hasVarStatus = ctxt.isAttributeSpecified("varStatus");
if (hasVarStatus) {
ctxt.dontUseTagPlugin();
return;
}
hasVar = ctxt.isAttributeSpecified("var");
hasBegin = ctxt.isAttributeSpecified("begin");
hasEnd = ctxt.isAttributeSpecified("end");
hasStep = ctxt.isAttributeSpecified("step");
boolean hasItems = ctxt.isAttributeSpecified("items");
if (hasItems) {
doCollection(ctxt);
return;
}
// We must have a begin and end attributes
index = ctxt.getTemporaryVariableName();
ctxt.generateJavaSource("for (int " + index + " = ");
ctxt.generateAttribute("begin");
ctxt.generateJavaSource("; " + index + " <= ");
ctxt.generateAttribute("end");
if (hasStep) {
ctxt.generateJavaSource("; " + index + "+=");
ctxt.generateAttribute("step");
ctxt.generateJavaSource(") {");
}
else {
ctxt.generateJavaSource("; " + index + "++) {");
}
// If var is specified and the body contains an EL, then sycn
// the var attribute
if (hasVar /* && ctxt.hasEL() */) {
ctxt.generateJavaSource("_jspx_page_context.setAttribute(");
ctxt.generateAttribute("var");
ctxt.generateJavaSource(", String.valueOf(" + index + "));");
}
ctxt.generateBody();
ctxt.generateJavaSource("}");
}
