Examples with TagVariableInfo jakarta.servlet.jsp.tagext.TagVariableInfo used on opensource projects

Example 1 with TagVariableInfo

use of jakarta.servlet.jsp.tagext.TagVariableInfo in project tomcat by apache.

the class Generator method declareTemporaryScriptingVars.

private void declareTemporaryScriptingVars(Node.Nodes page) throws JasperException {
    class ScriptingVarVisitor extends Node.Visitor {

        private final Vector<String> vars;

        ScriptingVarVisitor() {
            vars = new Vector<>();
        }

        @Override
        public void visit(Node.CustomTag n) throws JasperException {
            if (n.getCustomNestingLevel() > 0) {
                TagVariableInfo[] tagVarInfos = n.getTagVariableInfos();
                VariableInfo[] varInfos = n.getVariableInfos();
                if (varInfos.length > 0) {
                    for (VariableInfo varInfo : varInfos) {
                        String varName = varInfo.getVarName();
                        String tmpVarName = "_jspx_" + varName + "_" + n.getCustomNestingLevel();
                        if (!vars.contains(tmpVarName)) {
                            vars.add(tmpVarName);
                            out.printin(varInfo.getClassName());
                            out.print(" ");
                            out.print(tmpVarName);
                            out.print(" = ");
                            out.print(null);
                            out.println(";");
                        }
                    }
                } else {
                    for (TagVariableInfo tagVarInfo : tagVarInfos) {
                        String varName = tagVarInfo.getNameGiven();
                        if (varName == null) {
                            varName = n.getTagData().getAttributeString(tagVarInfo.getNameFromAttribute());
                        } else if (tagVarInfo.getNameFromAttribute() != null) {
                            // alias
                            continue;
                        }
                        String tmpVarName = "_jspx_" + varName + "_" + n.getCustomNestingLevel();
                        if (!vars.contains(tmpVarName)) {
                            vars.add(tmpVarName);
                            out.printin(tagVarInfo.getClassName());
                            out.print(" ");
                            out.print(tmpVarName);
                            out.print(" = ");
                            out.print(null);
                            out.println(";");
                        }
                    }
                }
            }
            visitBody(n);
        }
    }
    page.visit(new ScriptingVarVisitor());
}

Example 2 with TagVariableInfo

use of jakarta.servlet.jsp.tagext.TagVariableInfo in project tomcat by apache.

the class TestTldParser method testTld.

@Test
public void testTld() throws Exception {
    TaglibXml xml = parse("test/tld/test.tld");
    Assert.assertEquals("1.0", xml.getTlibVersion());
    Assert.assertEquals("2.1", xml.getJspVersion());
    Assert.assertEquals("test", xml.getShortName());
    Assert.assertEquals("http://tomcat.apache.org/TldTests", xml.getUri());
    Assert.assertEquals(1, xml.getFunctions().size());
    ValidatorXml validator = xml.getValidator();
    Assert.assertEquals("com.example.Validator", validator.getValidatorClass());
    Assert.assertEquals(1, validator.getInitParams().size());
    Assert.assertEquals("value", validator.getInitParams().get("name"));
    Assert.assertEquals(1, xml.getTags().size());
    TagXml tag = xml.getTags().get(0);
    Assert.assertEquals("org.apache.jasper.compiler.TestValidator$Echo", tag.getTagClass());
    Assert.assertEquals("empty", tag.getBodyContent());
    Assert.assertTrue(tag.hasDynamicAttributes());
    Assert.assertEquals(1, tag.getVariables().size());
    TagVariableInfo variableInfo = tag.getVariables().get(0);
    Assert.assertEquals("var", variableInfo.getNameGiven());
    Assert.assertEquals("java.lang.Object", variableInfo.getClassName());
    Assert.assertTrue(variableInfo.getDeclare());
    Assert.assertEquals(VariableInfo.AT_END, variableInfo.getScope());
    Assert.assertEquals(4, tag.getAttributes().size());
    TagAttributeInfo attributeInfo = tag.getAttributes().get(0);
    Assert.assertEquals("Echo Tag", tag.getInfo());
    Assert.assertEquals("Echo", tag.getDisplayName());
    Assert.assertEquals("small", tag.getSmallIcon());
    Assert.assertEquals("large", tag.getLargeIcon());
    Assert.assertEquals("echo", attributeInfo.getName());
    Assert.assertTrue(attributeInfo.isRequired());
    Assert.assertTrue(attributeInfo.canBeRequestTime());
    attributeInfo = tag.getAttributes().get(1);
    Assert.assertEquals("fragment", attributeInfo.getName());
    Assert.assertTrue(attributeInfo.isFragment());
    Assert.assertTrue(attributeInfo.canBeRequestTime());
    Assert.assertEquals("jakarta.servlet.jsp.tagext.JspFragment", attributeInfo.getTypeName());
    attributeInfo = tag.getAttributes().get(2);
    Assert.assertEquals("deferredValue", attributeInfo.getName());
    Assert.assertEquals("jakarta.el.ValueExpression", attributeInfo.getTypeName());
    Assert.assertEquals("java.util.Date", attributeInfo.getExpectedTypeName());
    attributeInfo = tag.getAttributes().get(3);
    Assert.assertEquals("deferredMethod", attributeInfo.getName());
    Assert.assertEquals("jakarta.el.MethodExpression", attributeInfo.getTypeName());
    Assert.assertEquals("java.util.Date getDate()", attributeInfo.getMethodSignature());
    Assert.assertEquals(1, xml.getTagFiles().size());
    TagFileXml tagFile = xml.getTagFiles().get(0);
    Assert.assertEquals("Echo", tag.getDisplayName());
    Assert.assertEquals("small", tag.getSmallIcon());
    Assert.assertEquals("large", tag.getLargeIcon());
    Assert.assertEquals("Echo2", tagFile.getName());
    Assert.assertEquals("/echo.tag", tagFile.getPath());
    Assert.assertEquals(1, xml.getFunctions().size());
    FunctionInfo fn = xml.getFunctions().get(0);
    Assert.assertEquals("trim", fn.getName());
    Assert.assertEquals("org.apache.el.TesterFunctions", fn.getFunctionClass());
    Assert.assertEquals("java.lang.String trim(java.lang.String)", fn.getFunctionSignature());
}

Example 3 with TagVariableInfo

use of jakarta.servlet.jsp.tagext.TagVariableInfo in project tomcat by apache.

the class Generator method generateSetJspContext.

/*
     * Generate setter for JspContext so we can create a wrapper and store both
     * the original and the wrapper. We need the wrapper to mask the page
     * context from the tag file and simulate a fresh page context. We need the
     * original to do things like sync AT_BEGIN and AT_END scripting variables.
     */
private void generateSetJspContext(TagInfo tagInfo) {
    boolean nestedSeen = false;
    boolean atBeginSeen = false;
    boolean atEndSeen = false;
    // Determine if there are any aliases
    boolean aliasSeen = false;
    TagVariableInfo[] tagVars = tagInfo.getTagVariableInfos();
    for (TagVariableInfo var : tagVars) {
        // will ensure that an alias is configured.
        if (var.getNameFromAttribute() != null) {
            aliasSeen = true;
            break;
        }
    }
    if (aliasSeen) {
        out.printil("public void setJspContext(jakarta.servlet.jsp.JspContext ctx, java.util.Map aliasMap) {");
    } else {
        out.printil("public void setJspContext(jakarta.servlet.jsp.JspContext ctx) {");
    }
    out.pushIndent();
    out.printil("super.setJspContext(ctx);");
    out.printil("java.util.ArrayList _jspx_nested = null;");
    out.printil("java.util.ArrayList _jspx_at_begin = null;");
    out.printil("java.util.ArrayList _jspx_at_end = null;");
    for (TagVariableInfo tagVar : tagVars) {
        switch(tagVar.getScope()) {
            case VariableInfo.NESTED:
                if (!nestedSeen) {
                    out.printil("_jspx_nested = new java.util.ArrayList();");
                    nestedSeen = true;
                }
                out.printin("_jspx_nested.add(");
                break;
            case VariableInfo.AT_BEGIN:
                if (!atBeginSeen) {
                    out.printil("_jspx_at_begin = new java.util.ArrayList();");
                    atBeginSeen = true;
                }
                out.printin("_jspx_at_begin.add(");
                break;
            case VariableInfo.AT_END:
                if (!atEndSeen) {
                    out.printil("_jspx_at_end = new java.util.ArrayList();");
                    atEndSeen = true;
                }
                out.printin("_jspx_at_end.add(");
                break;
        }
        // switch
        out.print(quote(tagVar.getNameGiven()));
        out.println(");");
    }
    if (aliasSeen) {
        out.printil("this.jspContext = new org.apache.jasper.runtime.JspContextWrapper(this, ctx, _jspx_nested, _jspx_at_begin, _jspx_at_end, aliasMap);");
    } else {
        out.printil("this.jspContext = new org.apache.jasper.runtime.JspContextWrapper(this, ctx, _jspx_nested, _jspx_at_begin, _jspx_at_end, null);");
    }
    out.popIndent();
    out.printil("}");
    out.println();
    out.printil("public jakarta.servlet.jsp.JspContext getJspContext() {");
    out.pushIndent();
    out.printil("return this.jspContext;");
    out.popIndent();
    out.printil("}");
}

Example 4 with TagVariableInfo

use of jakarta.servlet.jsp.tagext.TagVariableInfo in project tomcat by apache.

the class TagLibraryInfoImpl method createTagInfo.

private TagInfo createTagInfo(TagXml tagXml) throws JasperException {
    String teiClassName = tagXml.getTeiClass();
    TagExtraInfo tei = null;
    if (teiClassName != null && !teiClassName.isEmpty()) {
        try {
            Class<?> teiClass = ctxt.getClassLoader().loadClass(teiClassName);
            tei = (TagExtraInfo) teiClass.getConstructor().newInstance();
        } catch (Exception e) {
            err.jspError(e, "jsp.error.teiclass.instantiation", teiClassName);
        }
    }
    List<TagAttributeInfo> attributeInfos = tagXml.getAttributes();
    List<TagVariableInfo> variableInfos = tagXml.getVariables();
    return new TagInfo(tagXml.getName(), tagXml.getTagClass(), tagXml.getBodyContent(), tagXml.getInfo(), this, tei, attributeInfos.toArray(new TagAttributeInfo[0]), tagXml.getDisplayName(), tagXml.getSmallIcon(), tagXml.getLargeIcon(), variableInfos.toArray(new TagVariableInfo[0]), tagXml.hasDynamicAttributes());
}