Java Code Examples for org.apache.jasper.compiler.tagplugin.TagPluginContext#getTemporaryVariableName()
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org.apache.jasper.compiler.tagplugin.TagPluginContext#getTemporaryVariableName() .
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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: 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 3
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 4
Source File: Redirect.java From tomcatsrc 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 5
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 6
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 7
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 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 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 17
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 18
Source File: Url.java From Tomcat8-Source-Read with MIT License | 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 19
Source File: Param.java From Tomcat8-Source-Read with MIT License | 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 JspTagException" + "(\"<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 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("}"); }