com.tesora.dve.sql.util.ColumnChecker.java Source code

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Here is the source code for com.tesora.dve.sql.util.ColumnChecker.java

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package com.tesora.dve.sql.util;

/*
 * #%L
 * Tesora Inc.
 * Database Virtualization Engine
 * %%
 * Copyright (C) 2011 - 2014 Tesora Inc.
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */

import static org.junit.Assert.fail;

import org.apache.commons.lang.ObjectUtils;

public class ColumnChecker {

    public ColumnChecker() {
    }

    public String asString(Object in) {
        if (in == null)
            return "null";
        return in.toString();
    }

    public String debugString(Object in) throws Throwable {
        return asString(in);
    }

    protected String equalObjects(Object expected, Object actual) {
        if (ObjectUtils.equals(expected, actual))
            return null;
        String typeExpected = "";
        String typeActual = "";
        if (expected.getClass() != actual.getClass()) {
            typeExpected = " [" + expected.getClass().toString() + "]";
            typeActual = " [" + actual.getClass().toString() + "]";
        }
        return "Expected: '" + asString(expected) + "'" + typeExpected + "; Actual: '" + asString(actual) + "'"
                + typeActual;
    }

    public String isEqual(String cntxt, Object expected, Object actual, boolean justCheck) {
        if (expected == null && actual == null)
            return null;
        String diffs = null;
        if (expected != null && actual != null)
            diffs = equalObjects(expected, actual);
        else if (expected != null && actual == null)
            diffs = "Expected non null actual, but found null";
        else
            diffs = "Expected null actual, but found '" + asString(actual) + "'";
        if (diffs == null)
            return null;
        String message = cntxt + ": " + diffs;
        if (!justCheck)
            fail(message);
        return message;
    }
}