msb discovery java client

[msb/java-sdk.git] / src / main / java / org / onap / msb / sdk / discovery / util / HttpClientUtil.java

diff --git a/src/main/java/org/onap/msb/sdk/discovery/util/HttpClientUtil.java b/src/main/java/org/onap/msb/sdk/discovery/util/HttpClientUtil.java
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+/*******************************************************************************
+ * Copyright 2017 ZTE, Inc. and others.
+ * 
+ * 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.onap.msb.sdk.discovery.util;
+
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.http.NameValuePair;
+import org.apache.http.client.ClientProtocolException;
+import org.apache.http.client.methods.CloseableHttpResponse;
+import org.apache.http.client.methods.HttpDelete;
+import org.apache.http.client.methods.HttpGet;
+import org.apache.http.client.methods.HttpPost;
+import org.apache.http.client.methods.HttpPut;
+import org.apache.http.client.utils.URLEncodedUtils;
+import org.apache.http.entity.StringEntity;
+import org.apache.http.impl.client.CloseableHttpClient;
+import org.apache.http.impl.client.HttpClients;
+import org.apache.http.message.BasicNameValuePair;
+import org.apache.http.util.EntityUtils;
+import org.onap.msb.sdk.discovery.common.RouteConst;
+import org.onap.msb.sdk.discovery.common.RouteException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class HttpClientUtil {
+
+  private static final Logger logger = LoggerFactory.getLogger(HttpClientUtil.class);
+
+  public static String httpPostWithJSON(String url, String params) throws RouteException {
+    String result = null;
+    CloseableHttpClient httpClient = HttpClients.createDefault();
+    HttpPost httpPost = new HttpPost(url);
+    httpPost.addHeader("Content-type", "application/json; charset=utf-8");
+    httpPost.setHeader("Accept", "application/json");
+    httpPost.setEntity(new StringEntity(params, Charset.forName("UTF-8")));
+    try {
+      CloseableHttpResponse res = httpClient.execute(httpPost);
+      result = EntityUtils.toString(res.getEntity());
+      if (res.getStatusLine().getStatusCode() != RouteConst.SC_POST_OK) {
+        throw new RouteException(result, "SERVICE_GET_ERR");
+      }
+      res.close();
+    } catch (IOException e) {
+      String errorMsg = url + ":httpPostWithJSON connect faild";
+      throwsRouteException(errorMsg, e, "POST_CONNECT_FAILD");
+    } finally {
+      try {
+        httpClient.close();
+      } catch (IOException e) {
+        String errorMsg = url + ":close  httpClient faild";
+        throwsRouteException(errorMsg, e, "CLOSE_CONNECT_FAILD");
+      }
+    }
+
+    return result;
+
+  }
+
+  public static void delete(String url, String parameter) throws RouteException {
+    String result = null;
+    String baseUrl;
+    if (parameter != null) {
+      List<NameValuePair> params = new ArrayList<NameValuePair>();
+      params.add(new BasicNameValuePair("serviceName", parameter));
+      baseUrl = url + "?" + URLEncodedUtils.format(params, "UTF-8");
+    } else {
+      baseUrl = url;
+    }
+
+    CloseableHttpClient httpClient = HttpClients.createDefault();;
+    try {
+
+      HttpDelete httpDelete = new HttpDelete(baseUrl);
+      CloseableHttpResponse res = httpClient.execute(httpDelete);
+
+      if (res.getStatusLine().getStatusCode() != RouteConst.SC_DEL_OK) {
+        throw new RouteException(EntityUtils.toString(res.getEntity()), "SERVICE_DELETE_ERR");
+      }
+
+      res.close();
+    } catch (IOException e) {
+      String errorMsg = baseUrl + ":delete connect faild";
+      throwsRouteException(errorMsg, e, "DELETE_CONNECT_FAILD");
+    } finally {
+      try {
+        httpClient.close();
+      } catch (IOException e) {
+        String errorMsg = baseUrl + ":close  httpClient faild";
+        throwsRouteException(errorMsg, e, "CLOSE_CONNECT_FAILD");
+      }
+    }
+
+
+  }
+
+  public static String httpGet(String url) throws RouteException {
+    String result = null;
+    CloseableHttpClient httpClient = HttpClients.createDefault();
+    HttpGet httpGet = new HttpGet(url);
+    httpGet.addHeader("Content-type", "application/json; charset=utf-8");
+    httpGet.setHeader("Accept", "application/json");
+    try {
+      CloseableHttpResponse res = httpClient.execute(httpGet);
+      result = EntityUtils.toString(res.getEntity());
+      if (res.getStatusLine().getStatusCode() != RouteConst.SC_OK) {
+        throw new RouteException(result, "SERVICE_GET_ERR");
+      }
+      res.close();
+    } catch (ClientProtocolException e) {
+      String errorMsg = url + ":httpGetWithJSON connect faild";
+      throwsRouteException(errorMsg, e, "GET_CONNECT_FAILD");
+    } catch (IOException e) {
+      String errorMsg = url + ":httpGetWithJSON connect faild";
+      throwsRouteException(errorMsg, e, "GET_CONNECT_FAILD");
+    } finally {
+      try {
+        httpClient.close();
+      } catch (IOException e) {
+        String errorMsg = url + ":close  httpClient faild";
+        throwsRouteException(errorMsg, e, "CLOSE_CONNECT_FAILD");
+      }
+    }
+
+    return result;
+
+  }
+
+
+  public static String httpPutWithJSON(String url, String params) throws RouteException {
+    String result = null;
+    CloseableHttpClient httpClient = HttpClients.createDefault();
+    HttpPut httpPut = new HttpPut(url);
+    httpPut.addHeader("Content-type", "application/json; charset=utf-8");
+    httpPut.setHeader("Accept", "application/json");
+    httpPut.setEntity(new StringEntity(params, Charset.forName("UTF-8")));
+    try {
+      CloseableHttpResponse res = httpClient.execute(httpPut);
+      result = EntityUtils.toString(res.getEntity());
+      if (res.getStatusLine().getStatusCode() != RouteConst.SC_POST_OK) {
+        throw new RouteException(result, "SERVICE_GET_ERR");
+      }
+      res.close();
+    } catch (IOException e) {
+      String errorMsg = url + ":httpPostWithJSON connect faild";
+      throwsRouteException(errorMsg, e, "POST_CONNECT_FAILD");
+    } finally {
+      try {
+        httpClient.close();
+      } catch (IOException e) {
+        String errorMsg = url + ":close  httpClient faild";
+        throwsRouteException(errorMsg, e, "CLOSE_CONNECT_FAILD");
+      }
+    }
+
+    return result;
+
+  }
+
+
+
+  private static void throwsRouteException(String errorMsg, Exception e, String errorCode)
+      throws RouteException {
+    String msg = errorMsg + ".errorMsg:" + e.getMessage();
+    logger.error(msg);
+    throw new RouteException(errorMsg, errorCode);
+  }
+
+}