Examples with TemplateScalarModel freemarker.template.TemplateScalarModel used on opensource projects

Example 1 with TemplateScalarModel

use of freemarker.template.TemplateScalarModel in project freemarker by apache.

the class DynamicKeyName method _eval.

@Override
TemplateModel _eval(Environment env) throws TemplateException {
    TemplateModel targetModel = target.eval(env);
    if (targetModel == null) {
        if (env.isClassicCompatible()) {
            return null;
        } else {
            throw InvalidReferenceException.getInstance(target, env);
        }
    }
    TemplateModel keyModel = keyExpression.eval(env);
    if (keyModel == null) {
        if (env.isClassicCompatible()) {
            keyModel = TemplateScalarModel.EMPTY_STRING;
        } else {
            keyExpression.assertNonNull(null, env);
        }
    }
    if (keyModel instanceof TemplateNumberModel) {
        int index = keyExpression.modelToNumber(keyModel, env).intValue();
        return dealWithNumericalKey(targetModel, index, env);
    }
    if (keyModel instanceof TemplateScalarModel) {
        String key = EvalUtil.modelToString((TemplateScalarModel) keyModel, keyExpression, env);
        return dealWithStringKey(targetModel, key, env);
    }
    if (keyModel instanceof RangeModel) {
        return dealWithRangeKey(targetModel, (RangeModel) keyModel, env);
    }
    throw new UnexpectedTypeException(keyExpression, keyModel, "number, range, or string", new Class[] { TemplateNumberModel.class, TemplateScalarModel.class, Range.class }, env);
}

Example 2 with TemplateScalarModel

use of freemarker.template.TemplateScalarModel in project freemarker by apache.

the class GetOptionalTemplateMethod method exec.

public Object exec(List args) throws TemplateModelException {
    final int argCnt = args.size();
    if (argCnt < 1 || argCnt > 2) {
        throw _MessageUtil.newArgCntError(methodName, argCnt, 1, 2);
    }
    final Environment env = Environment.getCurrentEnvironment();
    if (env == null) {
        throw new IllegalStateException("No freemarer.core.Environment is associated to the current thread.");
    }
    final String absTemplateName;
    {
        TemplateModel arg = (TemplateModel) args.get(0);
        if (!(arg instanceof TemplateScalarModel)) {
            throw _MessageUtil.newMethodArgMustBeStringException(methodName, 0, arg);
        }
        String templateName = EvalUtil.modelToString((TemplateScalarModel) arg, null, env);
        try {
            absTemplateName = env.toFullTemplateName(env.getCurrentTemplate().getName(), templateName);
        } catch (MalformedTemplateNameException e) {
            throw new _TemplateModelException(e, "Failed to convert template path to full path; see cause exception.");
        }
    }
    final TemplateHashModelEx options;
    if (argCnt > 1) {
        TemplateModel arg = (TemplateModel) args.get(1);
        if (!(arg instanceof TemplateHashModelEx)) {
            throw _MessageUtil.newMethodArgMustBeExtendedHashException(methodName, 1, arg);
        }
        options = (TemplateHashModelEx) arg;
    } else {
        options = null;
    }
    String encoding = null;
    boolean parse = true;
    if (options != null) {
        final KeyValuePairIterator kvpi = TemplateModelUtils.getKeyValuePairIterator(options);
        while (kvpi.hasNext()) {
            final KeyValuePair kvp = kvpi.next();
            final String optName;
            {
                TemplateModel optNameTM = kvp.getKey();
                if (!(optNameTM instanceof TemplateScalarModel)) {
                    throw _MessageUtil.newMethodArgInvalidValueException(methodName, 1, "All keys in the options hash must be strings, but found ", new _DelayedAOrAn(new _DelayedFTLTypeDescription(optNameTM)));
                }
                optName = ((TemplateScalarModel) optNameTM).getAsString();
            }
            final TemplateModel optValue = kvp.getValue();
            if (OPTION_ENCODING.equals(optName)) {
                encoding = getStringOption(OPTION_ENCODING, optValue);
            } else if (OPTION_PARSE.equals(optName)) {
                parse = getBooleanOption(OPTION_PARSE, optValue);
            } else {
                throw _MessageUtil.newMethodArgInvalidValueException(methodName, 1, "Unsupported option ", new _DelayedJQuote(optName), "; valid names are: ", new _DelayedJQuote(OPTION_ENCODING), ", ", new _DelayedJQuote(OPTION_PARSE), ".");
            }
        }
    }
    final Template template;
    try {
        template = env.getTemplateForInclusion(absTemplateName, encoding, parse, true);
    } catch (IOException e) {
        throw new _TemplateModelException(e, "I/O error when trying to load optional template ", new _DelayedJQuote(absTemplateName), "; see cause exception");
    }
    SimpleHash result = new SimpleHash(env.getObjectWrapper());
    result.put(RESULT_EXISTS, template != null);
    // conveniently provided like in <@optTemp.include!myDefaultMacro />.
    if (template != null) {
        result.put(RESULT_INCLUDE, new TemplateDirectiveModel() {

            public void execute(Environment env, Map params, TemplateModel[] loopVars, TemplateDirectiveBody body) throws TemplateException, IOException {
                if (!params.isEmpty()) {
                    throw new TemplateException("This directive supports no parameters.", env);
                }
                if (loopVars.length != 0) {
                    throw new TemplateException("This directive supports no loop variables.", env);
                }
                if (body != null) {
                    throw new TemplateException("This directive supports no nested content.", env);
                }
                env.include(template);
            }
        });
        result.put(RESULT_IMPORT, new TemplateMethodModelEx() {

            public Object exec(List args) throws TemplateModelException {
                if (!args.isEmpty()) {
                    throw new TemplateModelException("This method supports no parameters.");
                }
                try {
                    return env.importLib(template, null);
                } catch (IOException e) {
                    throw new _TemplateModelException(e, "Failed to import loaded template; see cause exception");
                } catch (TemplateException e) {
                    throw new _TemplateModelException(e, "Failed to import loaded template; see cause exception");
                }
            }
        });
    }
    return result;
}

Example 3 with TemplateScalarModel

use of freemarker.template.TemplateScalarModel in project freemarker by apache.

the class Include method accept.

@Override
TemplateElement[] accept(Environment env) throws TemplateException, IOException {
    final String includedTemplateName = includedTemplateNameExp.evalAndCoerceToPlainText(env);
    final String fullIncludedTemplateName;
    try {
        fullIncludedTemplateName = env.toFullTemplateName(getTemplate().getName(), includedTemplateName);
    } catch (MalformedTemplateNameException e) {
        throw new _MiscTemplateException(e, env, "Malformed template name ", new _DelayedJQuote(e.getTemplateName()), ":\n", e.getMalformednessDescription());
    }
    final String encoding = this.encoding != null ? this.encoding : (encodingExp != null ? encodingExp.evalAndCoerceToPlainText(env) : null);
    final boolean parse;
    if (this.parse != null) {
        parse = this.parse.booleanValue();
    } else {
        TemplateModel tm = parseExp.eval(env);
        if (tm instanceof TemplateScalarModel) {
            // Legacy
            parse = getYesNo(parseExp, EvalUtil.modelToString((TemplateScalarModel) tm, parseExp, env));
        } else {
            parse = parseExp.modelToBoolean(tm, env);
        }
    }
    final boolean ignoreMissing;
    if (this.ignoreMissingExpPrecalcedValue != null) {
        ignoreMissing = this.ignoreMissingExpPrecalcedValue.booleanValue();
    } else if (ignoreMissingExp != null) {
        ignoreMissing = ignoreMissingExp.evalToBoolean(env);
    } else {
        ignoreMissing = false;
    }
    final Template includedTemplate;
    try {
        includedTemplate = env.getTemplateForInclusion(fullIncludedTemplateName, encoding, parse, ignoreMissing);
    } catch (IOException e) {
        throw new _MiscTemplateException(e, env, "Template inclusion failed (for parameter value ", new _DelayedJQuote(includedTemplateName), "):\n", new _DelayedGetMessage(e));
    }
    if (includedTemplate != null) {
        env.include(includedTemplate);
    }
    return null;
}

Example 4 with TemplateScalarModel

use of freemarker.template.TemplateScalarModel in project be5 by DevelopmentOnTheEdge.

the class FtlToYaml method ftlToHash.

public static LinkedHashMap<String, Object> ftlToHash(TemplateHashModelEx model) throws TemplateModelException {
    LinkedHashMap<String, Object> result = new LinkedHashMap<>();
    TemplateCollectionModel keys = model.keys();
    TemplateModelIterator iterator = keys.iterator();
    while (iterator.hasNext()) {
        TemplateModel next = iterator.next();
        if (!(next instanceof TemplateScalarModel)) {
            throw new TemplateModelException("Invalid key: " + next);
        }
        String key = ((TemplateScalarModel) next).getAsString();
        TemplateModel value = model.get(key);
        try {
            result.put(key, ftlToObject(value));
        } catch (TemplateModelException e) {
            throw new TemplateModelException(key + ": " + e.getMessage(), e);
        }
    }
    return result;
}

Example 5 with TemplateScalarModel

use of freemarker.template.TemplateScalarModel in project be5 by DevelopmentOnTheEdge.

the class Project method getVariableValue.

/**
 * Returns the value of FreeMarker variable defined in the project
 * @param name
 * @return variable value converted to string
 * @throws ProjectElementException
 */
public String getVariableValue(String name) {
    if (name == null || name.isEmpty())
        return null;
    try {
        Template template = new Template("", "", getConfiguration());
        Environment environment = template.createProcessingEnvironment(getContext(null), new StringWriter());
        environment.process();
        Object value = environment.__getitem__(name);
        if (value instanceof TemplateScalarModel) {
            return ((TemplateScalarModel) value).getAsString();
        }
        if (value == null) {
            return null;
        }
        return value.toString();
    } catch (IOException | TemplateException e) {
        throw new RuntimeException("Unexpected exception in getVariableValue: " + e);
    }
}