org.apache.inlong.sdk.commons.admin.AbstractAdminEventHandler Maven / Gradle / Ivy

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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 org.apache.inlong.sdk.commons.admin;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletResponse;

import java.io.IOException;
import java.nio.charset.Charset;

/**
 * AbstractAdminEventHandler
 */
public abstract class AbstractAdminEventHandler implements AdminEventHandler {

    public static final Logger LOG = LoggerFactory.getLogger(AbstractAdminEventHandler.class);

    /**
     * outputResponse
     *
     * @param response
     * @param outputString
     */
    public void outputResponse(HttpServletResponse response, String outputString) {
        ServletOutputStream outputStream = null;
        try {
            outputStream = response.getOutputStream();
            outputStream.write(outputString.getBytes(Charset.defaultCharset()));
        } catch (Exception e) {
            LOG.error(e.getMessage(), e);
        } finally {
            if (outputStream != null) {
                try {
                    outputStream.flush();
                } catch (IOException e) {
                    LOG.error(e.getMessage(), e);
                }
                try {
                    outputStream.close();
                } catch (IOException e) {
                    LOG.error(e.getMessage(), e);
                }
            }
        }
    }

}