Java tutorial
package com.webwoz.wizard.server.components; /* * 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. */ import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.io.UnsupportedEncodingException; import java.net.URLEncoder; import org.apache.http.HttpEntity; import org.apache.http.HttpHost; import org.apache.http.HttpResponse; import org.apache.http.HttpVersion; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpGet; import org.apache.http.conn.ClientConnectionManager; import org.apache.http.conn.params.ConnRoutePNames; import org.apache.http.conn.scheme.PlainSocketFactory; import org.apache.http.conn.scheme.Scheme; import org.apache.http.conn.scheme.SchemeRegistry; import org.apache.http.conn.ssl.SSLSocketFactory; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager; import org.apache.http.params.BasicHttpParams; import org.apache.http.params.HttpParams; import org.apache.http.params.HttpProtocolParams; import org.json.JSONObject; import com.webwoz.wizard.server.MTinComp; public class MTinGoogle extends MTinComp { private String uttAudioFile; private String uttMMFile; private String uttText; private HttpClient httpClient; public MTinGoogle(int mode) { super.setName("Google Translate"); super.setMode(mode); } /** * Submits text to Google AJAX Language API for translation. * * @param sourceText * @param sourceLanguage * @param targetLanguage * @param sourceTextFormat * The format of the source Text (either "text" or "html", as * specified by Google Language AJAX API). * @param apiKey * API Key, obtained after registering with Google. * @param userIP * IP address of end user (i.e. currently temporarily set to my * IP or IP address of the PMIR framework's server machine) * @param referer * URL of the referrer (e.g. URL of the PMIR framework's main * page). * @return An object of <code>TransaltedText</code> object. * @throws MalformedLanguageAcronymException * if the length of a language acronym (source or target) does * not match the standard acronym length used throughout the * framework. * @throws UnsupportedLanguageException * if a language (source or target) is not supported in the * framework. */ public String translate(String inputText, String srcLang, String trgLang) { // initialize connection // adapt proxies and settings to fit your server environment initializeConnection("www-proxy.cs.tcd.ie", 8080); String translation = null; String query = inputText; String sourceTextFormat = "html"; String userIP = "134.226.35.174"; String referer = "http://kdeg-vm14.cs.tcd.ie"; String GOOGLE_TRANSLATION_BASE_URL = "http://ajax.googleapis.com/ajax/services/language/translate?v=1.0"; try { // encode text query = URLEncoder.encode(query, "UTF-8"); // exchange + for space query = query.replace("+", "%20"); } catch (UnsupportedEncodingException ex) { ex.printStackTrace(); } String requestURL = GOOGLE_TRANSLATION_BASE_URL + "&q=" + query + "&langpair=" + srcLang + "%7C" + trgLang + "&format=" + sourceTextFormat + "&userip=" + userIP; HttpGet getRequest = new HttpGet(requestURL); getRequest.addHeader("Referer", referer); try { HttpResponse response = httpClient.execute(getRequest); HttpEntity responseEntity = response.getEntity(); StringBuilder jsonStringBuilder = new StringBuilder(); if (responseEntity != null) { InputStream inputStream = responseEntity.getContent(); BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream)); String line = null; while ((line = reader.readLine()) != null) { jsonStringBuilder.append(line); } inputStream.close(); reader.close(); } String jsonString = jsonStringBuilder.toString(); JSONObject wholeJSONObject = new JSONObject(jsonString); JSONObject responseDataObject = wholeJSONObject.getJSONObject("responseData"); translation = responseDataObject.getString("translatedText"); } catch (Exception ex) { ex.printStackTrace(); translation = ex.toString(); } shutDownConnection(); return translation; } public void initializeConnection(String proxyHostName, int proxyHostPort) { SchemeRegistry supportedSchemes = new SchemeRegistry(); // Register the "http" and "https" protocol schemes, they are // required by the default operator to look up socket factories. supportedSchemes.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80)); supportedSchemes.register(new Scheme("https", SSLSocketFactory.getSocketFactory(), 443)); // prepare parameters HttpParams params = new BasicHttpParams(); HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1); HttpProtocolParams.setContentCharset(params, "UTF-8"); HttpProtocolParams.setUseExpectContinue(params, true); ClientConnectionManager ccm = new ThreadSafeClientConnManager(params, supportedSchemes); httpClient = new DefaultHttpClient(ccm, params); HttpHost proxyHost = new HttpHost(proxyHostName, proxyHostPort); httpClient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxyHost); } /** * Shuts down the HTTP connection. */ public void shutDownConnection() { httpClient.getConnectionManager().shutdown(); } public String getResult(String text, String ctrl) { setUttAudio(""); setUttMM(""); setUttText(translate(text, ctrl.substring(3, 5), ctrl.substring(5, 7))); return getUttText(); } public void setUttAudio(String uttFile) { this.uttAudioFile = uttFile; } public String getUttAudio() { return uttAudioFile; } public void setUttMM(String uttMMFile) { this.uttMMFile = uttMMFile; } public String getUttMM() { return uttMMFile; } public void setUttText(String uttText) { this.uttText = uttText; } public String getUttText() { return uttText; } }