de.huxhorn.lilith.log4j.xml.Log4jImportCallableTest.java Source code

Introduction

Here is the source code for de.huxhorn.lilith.log4j.xml.Log4jImportCallableTest.java

Source

/*
 * Lilith - a log event viewer.
 * Copyright (C) 2007-2016 Joern Huxhorn
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * Copyright 2007-2016 Joern Huxhorn
 *
 * 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 de.huxhorn.lilith.log4j.xml;

import de.huxhorn.lilith.data.eventsource.EventWrapper;
import de.huxhorn.lilith.data.logging.LoggingEvent;
import de.huxhorn.sulky.buffers.AppendOperation;
import de.huxhorn.sulky.io.IOUtilities;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.io.IOUtils;
import org.junit.After;
import org.junit.Test;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;

public class Log4jImportCallableTest {
    private final Logger logger = LoggerFactory.getLogger(Log4jImportCallableTest.class);

    private File inputFile;

    @After
    public void cleanUp() {
        if (inputFile != null) {
            inputFile.delete();
            inputFile = null;
        }
    }

    @Test
    public void correctInputFactoryIsObtained() {
        String factoryClassName = Log4jImportCallable.XML_INPUT_FACTORY.getClass().getName();
        assertTrue(factoryClassName, factoryClassName.startsWith("com.ctc.wstx.stax"));
    }

    @Test
    public void example() throws Exception {
        createTempFile("/testcases/example.log");
        AppendOpStub buffer = new AppendOpStub();
        Log4jImportCallable instance = new Log4jImportCallable(inputFile, buffer);
        long result = instance.call();
        if (logger.isInfoEnabled())
            logger.info("Call returned {}.", result);
        if (logger.isDebugEnabled())
            logger.debug("Appended events: {}", buffer.getList());
        assertEquals(2, result);
        assertEquals(2, buffer.getList().size());
    }

    @Test
    public void exampleNoLF() throws Exception {
        createTempFile("/testcases/exampleNoLF.log");
        AppendOpStub buffer = new AppendOpStub();
        Log4jImportCallable instance = new Log4jImportCallable(inputFile, buffer);
        long result = instance.call();
        if (logger.isInfoEnabled())
            logger.info("Call returned {}.", result);
        if (logger.isDebugEnabled())
            logger.debug("Appended events: {}", buffer.getList());
        assertEquals(2, result);
        assertEquals(2, buffer.getList().size());
    }

    public void createTempFile(String resourceName) throws IOException {
        InputStream input = Log4jImportCallableTest.class.getResourceAsStream(resourceName);
        if (input == null) {
            fail("Couldn't resolve resource '" + resourceName + "'!");
        }
        inputFile = File.createTempFile("Import", "test");
        inputFile.delete();
        FileOutputStream output = new FileOutputStream(inputFile);
        IOUtils.copyLarge(input, output);
        IOUtilities.closeQuietly(output);
    }

    private static class AppendOpStub implements AppendOperation<EventWrapper<LoggingEvent>> {
        private List<EventWrapper<LoggingEvent>> list;

        private AppendOpStub() {
            list = new ArrayList<>();
        }

        public List<EventWrapper<LoggingEvent>> getList() {
            return list;
        }

        public void add(EventWrapper<LoggingEvent> element) {
            list.add(element);
        }

        public void addAll(List<EventWrapper<LoggingEvent>> elements) {
            throw new UnsupportedOperationException();
        }

        public void addAll(EventWrapper<LoggingEvent>[] elements) {
            throw new UnsupportedOperationException();
        }

        public boolean isFull() {
            throw new UnsupportedOperationException();
        }
    }
}