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/*
 * Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
 * Copyright 2004 The Apache Software Foundation
 *
 * 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.glassfish.wasp.compiler;

import org.glassfish.wasp.WaspException;

/**
 * Default implementation of ErrorHandler interface.
 *
 * @author Jan Luehe
 */
class DefaultErrorHandler implements ErrorHandler {

    /*
     * Processes the given JSP parse error.
     *
     * @param fname Name of the JSP file in which the parse error occurred
     *
     * @param line Parse error line number
     *
     * @param column Parse error column number
     *
     * @param errMsg Parse error message
     *
     * @param exception Parse exception
     */
    @Override
    public void jspError(String fname, int line, int column, String errMsg, Exception ex) throws WaspException {
        throw new WaspException(fname + "(" + line + "," + column + ")" + " " + errMsg, ex);
    }

    /*
     * Processes the given JSP parse error.
     *
     * @param errMsg Parse error message
     *
     * @param exception Parse exception
     */
    @Override
    public void jspError(String errMsg, Exception ex) throws WaspException {
        throw new WaspException(errMsg, ex);
    }

    /*
     * Processes the given javac compilation errors.
     *
     * @param details Array of JavacErrorDetail instances corresponding to the compilation errors
     */
    @Override
    public void javacError(JavacErrorDetail[] details) throws WaspException {

        if (details == null) {
            return;
        }

        Object[] args = null;
        StringBuilder buf = new StringBuilder();

        for (int i = 0; i < details.length; i++) {
            if (details[i].getJspBeginLineNumber() >= 0) {
                args = new Object[] { Integer.valueOf(details[i].getJspBeginLineNumber()), details[i].getJspFileName() };
                buf.append(Localizer.getMessage("jsp.error.single.line.number", args));
                buf.append("\n");
            }

            buf.append(Localizer.getMessage("jsp.error.corresponding.servlet"));
            buf.append(details[i].getErrorMessage());
            buf.append("\n\n");
        }

        if (buf.length() == 0) {
            throw new WaspException(Localizer.getMessage("jsp.error.nojdk"));
        }
        throw new WaspException(Localizer.getMessage("jsp.error.unable.compile") + "\n\n" + buf);
    }

    /**
     * Processes the given javac error report and exception.
     *
     * @param errorReport Compilation error report
     * @param exception Compilation exception
     */
    @Override
    public void javacError(String errorReport, Exception exception) throws WaspException {

        throw new WaspException(Localizer.getMessage("jsp.error.unable.compile"), exception);
    }

}