Example usage for org.apache.commons.jci.problems CompilationProblem getStartLine

Introduction

In this page you can find the example usage for org.apache.commons.jci.problems CompilationProblem getStartLine.

Prototype

int getStartLine();

Source Link

Document

position of where the problem starts in the source code

Usage

From source file:org.xchain.framework.jsl.TemplateCompiler.java

/**
 * Compiles the source result./*from ww w  .  j  av  a  2  s  . c o  m*/
 *
 * @throws SAXException if there is a compilation error in the source file.
 */
public Class compileTemplate(SourceResult result) throws SAXException {
    // add the resource to the reader.
    try {
        resourceReader.add(result.getSourceResourceName(), result.getSource().getBytes(SOURCE_ENCODING));
    } catch (UnsupportedEncodingException uee) {
        throw new SAXException("Could not build source in the encoding '" + SOURCE_ENCODING + "'.", uee);
    }

    // create the resource store.
    ResourceStore resourceStore = new MemoryResourceStore();

    // compile the result.
    CompilationResult compilationResult = compiler.compile(new String[] { result.getSourceResourceName() },
            resourceReader, resourceStore, templateClassLoader, settings);

    // handle any errors.
    if (compilationResult.getErrors().length > 0) {
        if (log.isDebugEnabled()) {
            log.debug("Source that would not complile:\n" + result.getSource());
            for (CompilationProblem error : compilationResult.getErrors()) {
                log.debug("Error (" + error.getStartLine() + ", " + error.getStartColumn() + "):"
                        + error.getMessage());
            }
        }
        // TODO: Make this message better.
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append("Could not compile template source. Errors:\n");
        for (CompilationProblem error : compilationResult.getErrors()) {
            stringBuilder.append("(" + error.getStartLine() + ", " + error.getStartColumn() + "):"
                    + error.getMessage() + "\n");
        }
        throw new SAXException(stringBuilder.toString());
    }

    // handle any errors.
    if (log.isDebugEnabled()) {
        for (CompilationProblem warning : compilationResult.getWarnings()) {
            log.debug("Compilation warning(" + warning.getStartLine() + ", " + warning.getStartColumn() + "):"
                    + warning.getMessage());
        }
    }

    byte[] compiledBytes = resourceStore.read(result.getClassResourceName());

    templateClassLoader.publicDefineClass(result.getClassName(), compiledBytes, 0, compiledBytes.length);
    Class templateClass = null;

    try {
        templateClass = templateClassLoader.loadClass(result.getClassName());
    } catch (Exception e) {
        throw new SAXException("Could not load the class '" + result.getClassName() + "'.", e);
    }

    return templateClass;
}

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