Java tutorial
/* * Copyright (c) 2016, WSO2 Inc. (http://www.wso2.org) All Rights Reserved. * * WSO2 Inc. 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.wso2.carbon.connector.common; import org.apache.axiom.om.OMElement; import org.apache.axiom.om.util.AXIOMUtil; import org.apache.axiom.soap.SOAP12Constants; import org.apache.axis2.AxisFault; import org.apache.axis2.Constants; import org.apache.axis2.addressing.EndpointReference; import org.apache.axis2.client.Options; import org.apache.axis2.client.ServiceClient; import org.apache.axis2.json.gson.factory.JsonObject; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.jruby.RubyProcess; import org.json.JSONException; import org.json.JSONObject; import org.wso2.carbon.automation.core.ProductConstant; import org.wso2.carbon.mediation.library.stub.upload.MediationLibraryUploaderStub; import org.wso2.carbon.mediation.library.stub.upload.types.carbon.LibraryFileItem; import javax.activation.DataHandler; import javax.xml.stream.XMLStreamException; import java.io.*; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.net.URLConnection; import java.rmi.RemoteException; import java.security.InvalidKeyException; import java.security.NoSuchAlgorithmException; import java.util.ArrayList; import java.util.List; import java.util.Properties; public class ConnectorIntegrationUtil { public static final String ESB_CONFIG_LOCATION = "artifacts" + File.separator + "ESB" + File.separator + "config"; private static final Log log = LogFactory.getLog(ConnectorIntegrationUtil.class); public static void uploadConnector(String repoLocation, MediationLibraryUploaderStub mediationLibUploadStub, String strFileName) throws MalformedURLException, RemoteException { List<LibraryFileItem> uploadLibraryInfoList = new ArrayList<LibraryFileItem>(); LibraryFileItem uploadedFileItem = new LibraryFileItem(); uploadedFileItem .setDataHandler(new DataHandler(new URL("file:" + "///" + repoLocation + "/" + strFileName))); uploadedFileItem.setFileName(strFileName); uploadedFileItem.setFileType("zip"); uploadLibraryInfoList.add(uploadedFileItem); LibraryFileItem[] uploadServiceTypes = new LibraryFileItem[uploadLibraryInfoList.size()]; uploadServiceTypes = uploadLibraryInfoList.toArray(uploadServiceTypes); mediationLibUploadStub.uploadLibrary(uploadServiceTypes); } public static int sendRequestToRetriveHeaders(String addUrl, String query) throws IOException, JSONException { String charset = "UTF-8"; URLConnection connection = new URL(addUrl).openConnection(); connection.setDoOutput(true); connection.setRequestProperty("Accept-Charset", charset); connection.setRequestProperty("Content-Type", "application/json;charset=" + charset); OutputStream output = null; try { output = connection.getOutputStream(); output.write(query.getBytes(charset)); } finally { if (output != null) { try { output.close(); } catch (IOException logOrIgnore) { log.error("Error while closing the connection"); } } } HttpURLConnection httpConn = (HttpURLConnection) connection; int responseCode = httpConn.getResponseCode(); return responseCode; } public static int sendRequestToRetriveHeaders(String addUrl, String query, String contentType) throws IOException, JSONException { String charset = "UTF-8"; URLConnection connection = new URL(addUrl).openConnection(); connection.setDoOutput(true); connection.setRequestProperty("Accept-Charset", charset); connection.setRequestProperty("Content-Type", contentType + ";charset=" + charset); OutputStream output = null; try { output = connection.getOutputStream(); output.write(query.getBytes(charset)); } finally { if (output != null) { try { output.close(); } catch (IOException logOrIgnore) { log.error("Error while closing the connection"); } } } HttpURLConnection httpConn = (HttpURLConnection) connection; int responseCode = httpConn.getResponseCode(); return responseCode; } public static String sendRestRequest(String httpMethod, String parameters) throws IOException, NoSuchAlgorithmException, InvalidKeyException, JSONException { Properties connectorProperties = getConnectorConfigProperties("nest"); String url = connectorProperties.getProperty("apiUrl") + "/" + parameters + "?auth=" + connectorProperties.getProperty("accessToken"); return sendRequestString(httpMethod, url, null); } public static String sendRequestString(String httpMethod, String addUrl, String query) throws IOException, JSONException { String charset = "UTF-8"; URLConnection con = new URL(addUrl).openConnection(); HttpURLConnection connection = (HttpURLConnection) con; connection.setRequestMethod(httpMethod); if (!httpMethod.equals("GET")) { connection.setDoOutput(true); connection.setRequestProperty("Accept-Charset", charset); connection.setRequestProperty("Content-Type", "application/json;charset=" + charset); OutputStream output = null; try { output = connection.getOutputStream(); if (query != null) { output.write(query.getBytes(charset)); } } finally { if (output != null) { try { output.close(); } catch (IOException logOrIgnore) { log.error("Error while closing the connection"); } } } } InputStream response; if (connection.getResponseCode() >= 400) { response = connection.getErrorStream(); } else { response = connection.getInputStream(); } String out = ""; if (response != null) { StringBuilder sb = new StringBuilder(); byte[] bytes = new byte[1024]; int len; while ((len = response.read(bytes)) != -1) { sb.append(new String(bytes, 0, len)); } if (!sb.toString().trim().isEmpty()) { out = sb.toString(); } } return out; } public static JSONObject sendRequest(String httpMethod, String addUrl, String query) throws IOException, JSONException { String charset = "UTF-8"; URLConnection con = new URL(addUrl).openConnection(); HttpURLConnection connection = (HttpURLConnection) con; connection.setRequestMethod(httpMethod); if (!httpMethod.equals("GET")) { connection.setDoOutput(true); connection.setRequestProperty("Accept-Charset", charset); connection.setRequestProperty("Content-Type", "application/json;charset=" + charset); OutputStream output = null; try { output = connection.getOutputStream(); if (query != null) { output.write(query.getBytes(charset)); } } finally { if (output != null) { try { output.close(); } catch (IOException logOrIgnore) { log.error("Error while closing the connection"); } } } } InputStream response; if (connection.getResponseCode() >= 400) { response = connection.getErrorStream(); } else { response = connection.getInputStream(); } String out = "{}"; if (response != null) { StringBuilder sb = new StringBuilder(); byte[] bytes = new byte[1024]; int len; while ((len = response.read(bytes)) != -1) { sb.append(new String(bytes, 0, len)); } if (!sb.toString().trim().isEmpty()) { out = sb.toString(); } } JSONObject jsonObject = new JSONObject(out); return jsonObject; } public static OMElement sendXMLRequest(String addUrl, String query) throws MalformedURLException, IOException, XMLStreamException { String charset = "UTF-8"; URLConnection connection = new URL(addUrl).openConnection(); connection.setDoOutput(true); connection.setRequestProperty("Accept-Charset", charset); connection.setRequestProperty("Content-Type", "application/json;charset=" + charset); OutputStream output = null; try { output = connection.getOutputStream(); output.write(query.getBytes(charset)); } finally { if (output != null) { try { output.close(); } catch (IOException logOrIgnore) { log.error("Error while closing the connection"); } } } HttpURLConnection httpConn = (HttpURLConnection) connection; InputStream response; if (httpConn.getResponseCode() >= 400) { response = httpConn.getErrorStream(); } else { response = connection.getInputStream(); } String out = "{}"; if (response != null) { StringBuilder sb = new StringBuilder(); byte[] bytes = new byte[1024]; int len; while ((len = response.read(bytes)) != -1) { sb.append(new String(bytes, 0, len)); } if (!sb.toString().trim().isEmpty()) { out = sb.toString(); } } OMElement omElement = AXIOMUtil.stringToOM(out); return omElement; } public static Properties getConnectorConfigProperties(String connectorName) { String connectorConfigFile = null; ProductConstant.init(); try { connectorConfigFile = ProductConstant.SYSTEM_TEST_SETTINGS_LOCATION + File.separator + "artifacts" + File.separator + "ESB" + File.separator + "connector" + File.separator + "config" + File.separator + connectorName + ".properties"; File connectorPropertyFile = new File(connectorConfigFile); InputStream inputStream = null; if (connectorPropertyFile.exists()) { inputStream = new FileInputStream(connectorPropertyFile); } if (inputStream != null) { Properties prop = new Properties(); prop.load(inputStream); inputStream.close(); return prop; } } catch (IOException ignored) { log.error("automation.properties file not found, please check your configuration"); } return null; } public static OMElement sendReceive(OMElement payload, String endPointReference, String operation, String contentType) throws AxisFault { ServiceClient sender; Options options; OMElement response = null; if (log.isDebugEnabled()) { log.debug("Service Endpoint : " + endPointReference); log.debug("Service Operation : " + operation); log.debug("Payload : " + payload); } try { sender = new ServiceClient(); options = new Options(); options.setTo(new EndpointReference(endPointReference)); options.setProperty(org.apache.axis2.transport.http.HTTPConstants.CHUNKED, Boolean.FALSE); options.setTimeOutInMilliSeconds(45000); options.setAction("urn:" + operation); options.setSoapVersionURI(SOAP12Constants.SOAP_ENVELOPE_NAMESPACE_URI); options.setProperty(Constants.Configuration.MESSAGE_TYPE, contentType); sender.setOptions(options); response = sender.sendReceive(payload); if (log.isDebugEnabled()) { log.debug("Response Message : " + response); } } catch (AxisFault axisFault) { log.error(axisFault.getMessage()); throw new AxisFault("AxisFault while getting response :" + axisFault.getMessage(), axisFault); } return response; } /** * Method to read in contents of a file as String * * @param path * @return String contents of file * @throws java.io.IOException */ public static String getFileContent(String path) throws IOException { StringBuilder stringBuilder = new StringBuilder(); BufferedReader reader = null; try { reader = new BufferedReader(new FileReader(path)); String line = null; String ls = System.getProperty("line.separator"); while ((line = reader.readLine()) != null) { stringBuilder.append(line); stringBuilder.append(ls); } } catch (IOException ioe) { log.error("Error reading request from file.", ioe); } finally { if (reader != null) { reader.close(); } } return stringBuilder.toString(); } /** * Convert first letter of a string to upper case * * @param string * @return <strong>String</strong> with the first letter as upper case */ public static String firstToUpperCase(String string) { String post = string.substring(1, string.length()); String first = ("" + string.charAt(0)).toUpperCase(); return first + post; } }