com.qualogy.qafe.bind.orm.jibx.JIBXExceptionTranslator.java Source code

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Here is the source code for com.qualogy.qafe.bind.orm.jibx.JIBXExceptionTranslator.java

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/**
 * Copyright 2008-2015 Qualogy Solutions B.V.
 *
 * 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 com.qualogy.qafe.bind.orm.jibx;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.math.NumberUtils;
import org.jibx.runtime.JiBXException;

public class JIBXExceptionTranslator {

    public final static String JIBX_LINE_INDICATION_START_MARK = "line ";
    public final static String JIBX_LINE_INDICATION_END_MARK = ",";

    /**
     * Method to get the line JIBX complains about in its error message
     * Method resets the given inputstream to get a clear vision
     * @param e
     * @param in
     * @return
     * @throws BindException - when IOException occurs reading inputstream
     */
    public static String getLine(JiBXException exception, InputStream in) throws BindException {
        String line = null;

        try {
            in.reset();
        } catch (IOException e) {
            throw new BindException("Getting the original line failed", e);
        }
        if (exception.getMessage() != null) {
            String message = exception.getMessage();

            int start = message.indexOf(JIBX_LINE_INDICATION_START_MARK) + JIBX_LINE_INDICATION_START_MARK.length();
            if (start > -1) {
                int end = message.indexOf(JIBX_LINE_INDICATION_END_MARK, start);

                if (end > -1) {
                    String lineNrStr = message.substring(start, end);
                    if (NumberUtils.isNumber(lineNrStr)) {
                        int lineNr = Integer.parseInt(lineNrStr);

                        List lines = null;
                        try {
                            lines = IOUtils.readLines(in);
                        } catch (IOException e) {
                            throw new BindException("Getting the original line failed", e);
                        }
                        if (lines != null) {
                            line = (String) (lines.get(lineNr - 1));
                        }
                    }
                }
            }
        }
        if (line != null)
            line = StringUtils.trimToEmpty(line);
        return line;
    }
}