Package org.apache.camel.spi

Examples of org.apache.camel.spi.Language

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        }
    }

    private static GenericFileExpressionRenamer<File> getDefaultCommitRenamer(CamelContext context) {
        // use context to lookup language to let it be loose coupled
        Language language = context.resolveLanguage("file");
        Expression expression = language.createExpression("${file:parent}/.camel/${file:onlyname}");
        return new GenericFileExpressionRenamer<File>(expression);
    }
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    public Predicate getRetryWhilePolicy(CamelContext context) {
        Predicate answer = getRetryWhile();

        if (getRetryWhileRef() != null) {
            // its a bean expression
            Language bean = context.resolveLanguage("bean");
            answer = bean.createPredicate(getRetryWhileRef());
        }

        return answer;
    }
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                public Object evaluate(List list) throws XPathFunctionException {
                    if (exchange != null && !list.isEmpty()) {
                        Object value = list.get(0);
                        if (value != null) {
                            String text = exchange.get().getContext().getTypeConverter().convertTo(String.class, value);
                            Language simple = exchange.get().getContext().resolveLanguage("simple");
                            Expression exp = simple.createExpression(text);
                            Object answer = exp.evaluate(exchange.get(), Object.class);
                            return answer;
                        }
                    }
                    return null;
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    protected String getLanguageName() {
        return "simple";
    }

    protected void assertExpressionResultInstanceOf(String expressionText, Class<?> expectedType) {
        Language language = assertResolveLanguage(getLanguageName());
        Expression expression = language.createExpression(expressionText);
        assertNotNull("Cannot assert type when no type is provided", expectedType);
        assertNotNull("No Expression could be created for text: " + expressionText + " language: " + language, expression);
        Object answer = expression.evaluate(exchange, Object.class);
        assertIsInstanceOf(expectedType, answer);
    }
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        }
    }

    private static GenericFileExpressionRenamer<File> getDefaultCommitRenamer(CamelContext context) {
        // use context to lookup language to let it be loose coupled
        Language language = context.resolveLanguage("file");
        Expression expression = language.createExpression("${file:parent}/.camel/${file:onlyname}");
        return new GenericFileExpressionRenamer<File>(expression);
    }
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    // Helper methods
    // -----------------------------------------------------------------------

    public Language resolveLanguage(String language) {
        Language answer;
        synchronized (languages) {
            answer = languages.get(language);

            // check if the language is singleton, if so return the shared instance
            if (answer instanceof IsSingleton) {
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            // whatever configured on the endpoint
            if (name.indexOf("${") > -1) {
                if (log.isDebugEnabled()) {
                    log.debug(Exchange.FILE_NAME + " contains a Simple expression: " + name);
                }
                Language language = getEndpoint().getCamelContext().resolveLanguage("file");
                expression = language.createExpression(name);
            }
        }
        if (expression != null) {
            if (log.isDebugEnabled()) {
                log.debug("Filename evaluated as expression: " + expression);
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        return params;
    }

    private Expression createFileLanguageExpression(String expression) {
        Language language;
        // only use file language if the name is complex (eg. using $)
        if (expression.contains("$")) {
            language = getCamelContext().resolveLanguage("file");
        } else {
            language = getCamelContext().resolveLanguage("constant");
        }
        return language.createExpression(expression);
    }
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        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                // resolve language using context to have a clear separation of packages
                // must call evaluate to return the nested language evaluate when evaluating
                // stacked expressions
                Language language = exchange.getContext().resolveLanguage("simple");
                return language.createExpression(expression).evaluate(exchange, Object.class);
            }

            @Override
            public String toString() {
                return "simple(" + expression + ")";
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        return new ExpressionAdapter() {
            public Object evaluate(Exchange exchange) {
                // resolve language using context to have a clear separation of packages
                // must call evaluate to return the nested language evaluate when evaluating
                // stacked expressions
                Language language = exchange.getContext().resolveLanguage("bean");
                return language.createExpression(expression).evaluate(exchange, Object.class);
            }

            @Override
            public String toString() {
                return "bean(" + expression + ")";
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Related Classes of org.apache.camel.spi.Language

  • org.apache.camel.builder.DefaultErrorHandlerBuilder
  • org.apache.camel.builder.ExpressionBuilder
  • org.apache.camel.builder.ExpressionClause
  • org.apache.camel.builder.ExpressionClauseSupport
  • org.apache.camel.builder.FileExpressionBuilder
  • org.apache.camel.builder.xml.XPathBuilder
  • org.apache.camel.component.bean.DefaultAnnotationExpressionFactory
  • org.apache.camel.component.file.GenericFileDefaultSorter
  • org.apache.camel.component.file.GenericFileEndpoint
  • org.apache.camel.component.file.GenericFileProducer
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