com.tencent.polaris.logging.logback.PolarisJoranConfigurator Maven / Gradle / Ivy

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/*
 * Tencent is pleased to support the open source community by making Polaris available.
 *
 * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
 *
 * Licensed under the BSD 3-Clause License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://opensource.org/licenses/BSD-3-Clause
 *
 * 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.tencent.polaris.logging.logback;

import ch.qos.logback.classic.joran.JoranConfigurator;
import ch.qos.logback.core.joran.event.SaxEvent;
import ch.qos.logback.core.joran.spi.JoranException;

import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;

/**
 * @author Haotian Zhang
 */
public class PolarisJoranConfigurator extends JoranConfigurator {

    @Override
    public void registerSafeConfiguration(List eventList) {
    }

    public void doPolarisConfigure(URL url) throws JoranException {
        InputStream in = null;
        try {
            URLConnection urlConnection = url.openConnection();
            urlConnection.setUseCaches(false);
            in = urlConnection.getInputStream();
            doConfigure(in, url.toExternalForm());
        } catch (IOException ioe) {
            String errMsg = "Could not open URL [" + url + "].";
            addError(errMsg, ioe);
            throw new JoranException(errMsg, ioe);
        } finally {
            if (in != null) {
                try {
                    in.close();
                } catch (IOException ioe) {
                    String errMsg = "Could not close [" + url + "] stream";
                    addError(errMsg, ioe);
                    throw new JoranException(errMsg, ioe);
                }
            }
        }
    }
}