org.eclipse.winery.common.config.externalservice.msb.HttpClientUtil.java Source code

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Here is the source code for org.eclipse.winery.common.config.externalservice.msb.HttpClientUtil.java

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/**
 * Copyright 2016 ZTE Corporation.
 *
 * 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 org.eclipse.winery.common.config.externalservice.msb;

import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

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

public class HttpClientUtil {
    private String apiUrl;
    private static final Logger logger = LoggerFactory.getLogger(HttpClientUtil.class);
    private HttpClient httpClient = null;
    private HttpPost method = null;
    private long startTime = 0L;
    private long endTime = 0L;
    private int status = 0;

    /**
     * init http client .
     * 
     * @param host http service address
     * @param path service path
     */
    public HttpClientUtil(String host, String path) {
        this.apiUrl = host + path;
        httpClient = HttpClients.createDefault();
        method = new HttpPost(apiUrl);
    }

    /**
     * send http post request.
     * 
     * @param parameters post request parameters
     * @return response context
     */
    public String post(String parameters) {
        String body = null;
        logger.info("apiURl" + this.apiUrl + " parameters:" + parameters);
        if (method != null & parameters != null && !"".equals(parameters.trim())) {
            try {
                method.addHeader("Content-type", "application/json; charset=utf-8");
                method.setHeader("Accept", "application/json");
                method.setEntity(new StringEntity(parameters, Charset.forName("UTF-8")));
                startTime = System.currentTimeMillis();
                HttpResponse response = httpClient.execute(method);
                endTime = System.currentTimeMillis();
                int statusCode = response.getStatusLine().getStatusCode();
                logger.info("statusCode:" + statusCode);
                logger.info("Call API to spend time(Unit:ms):" + (endTime - startTime));
                if (statusCode != HttpStatus.SC_CREATED) {
                    logger.error("post Method failed:" + response.getStatusLine());
                    status = 1;
                }
                body = EntityUtils.toString(response.getEntity());
            } catch (IOException e1) {
                logger.error("post Method failed,errormsg:" + e1.getMessage());
                status = 3;
            } finally {
                logger.info("Call API status:" + status);
            }
        }
        return body;
    }

    public int getStatus() {
        return status;
    }

    public void setStatus(int status) {
        this.status = status;
    }

    public long getStartTime() {
        return startTime;
    }

    public long getEndTime() {
        return endTime;
    }
}