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Groovy example source code file (SyntaxErrorMessage.java)

This example Groovy source code file (SyntaxErrorMessage.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

io, janitor, message, sourceunit, sourceunit, string, string, syntaxerrormessage, syntaxerrormessage, syntaxexception, syntaxexception

The Groovy SyntaxErrorMessage.java source code

/*
 * Copyright 2003-2007 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.codehaus.groovy.control.messages;

import java.io.PrintWriter;

import org.codehaus.groovy.control.Janitor;
import org.codehaus.groovy.control.SourceUnit;
import org.codehaus.groovy.syntax.SyntaxException;

/**
 * A class for error messages produced by the parser system.
 *
 * @author <a href="mailto:cpoirier@dreaming.org">Chris Poirier
 * @version $Id: SyntaxErrorMessage.java 7899 2007-09-03 11:25:08Z paulk $
 */

public class SyntaxErrorMessage extends Message {
    protected SyntaxException cause;
    protected SourceUnit source;
    
    public SyntaxErrorMessage(SyntaxException cause, SourceUnit source) {
        this.cause = cause;
        this.source = source;
        cause.setSourceLocator(source.getName());
    }

    /**
     * Returns the underlying SyntaxException.
     */

    public SyntaxException getCause() {
        return this.cause;
    }

    /**
     * Writes out a nicely formatted summary of the syntax error.
     */

    public void write(PrintWriter output, Janitor janitor) {
        String name = source.getName();
        int line = getCause().getStartLine();
        int column = getCause().getStartColumn();
        String sample = source.getSample(line, column, janitor);

        output.print(name + ": " + line + ": " + getCause().getMessage());
        if (sample != null) {
            output.println();
            output.print(sample);
            output.println();
        }
    }

}

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