com.intel.ssg.dcst.panthera.parse.sql.SqlXlateException.java Source code

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Here is the source code for com.intel.ssg.dcst.panthera.parse.sql.SqlXlateException.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.intel.ssg.dcst.panthera.parse.sql;

import org.antlr.runtime.tree.CommonTree;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 *
 * Exceptions thrown at Translation phase.
 *
 */
public class SqlXlateException extends Exception {

    private static final long serialVersionUID = 1L;
    private String dm = "";
    private static final Log LOG = LogFactory.getLog("hive.ql.parse.sql.SqlParseDriver");

    public CommonTree node = null;

    /**
     * Constructor.
     *
     * @param e the associated exception thrown from Sql Parser
     */
    public SqlXlateException(SqlXlateException e) {
        super(e);
        this.node = e.node;
    }

    public SqlXlateException(CommonTree node, Exception e) {
        super(e);
        this.node = node;
    }

    public SqlXlateException(CommonTree node) {
        super(commonTreeTrace(node));
        this.node = node;
    }

    public SqlXlateException(CommonTree node, String msg) {
        super(msg + ":" + commonTreeTrace(node));
        this.node = node;
    }

    @Deprecated
    public SqlXlateException(String msg) {
        super(msg);
    }

    public void outputException(String origin) {
        if (this.node == null) {
            messagePrepare(super.getMessage());
            return;
        }
        messagePrepare("Error node '" + this.node.getText().toUpperCase() + "': " + super.getMessage());
        if (this.node.getLine() == 0) {
            return;
        }
        int linenum = this.node.getLine() - 1;

        String[] linetext = origin.split("\n");
        linetext[linetext.length - 1] += " ;";
        String lineptr = linetext[linenum].replaceAll(".", " ");
        int i = 0;
        for (; i <= linenum; i++) {
            messagePrepare(linetext[i].toUpperCase());
        }
        messagePrepare(lineptr.subSequence(0, this.node.getCharPositionInLine()) + "^"
                + lineptr.subSequence(this.node.getCharPositionInLine() + 1, lineptr.length()));
        for (; i < linetext.length; i++) {
            messagePrepare(linetext[i].toUpperCase());
        }
    }

    private void messagePrepare(String str) {
        dm += str + "\n";
    }

    private static String commonTreeTrace(CommonTree node) {
        // TODO Improve this
        if (node == null) {
            return "";
        }
        return "Error(s) near line " + node.getLine() + ":" + node.getCharPositionInLine();
    }

    @Override
    public String getMessage() {
        return dm;
    }

}