Java tutorial
/* * The MIT License (MIT) * * Copyright (c) 2015 Preversoft * * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and * associated documentation files (the "Software"), to deal in the Software without restriction, * including without limitation the rights to use, copy, modify, merge, publish, distribute, * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all copies or * substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT * NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ package com.pangdata.sdk.http; import java.io.FileNotFoundException; import java.io.IOException; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import java.util.Map.Entry; import java.util.Properties; import org.apache.http.HttpResponse; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpRequestBase; import org.apache.http.client.params.ClientPNames; import org.apache.http.params.BasicHttpParams; import org.apache.http.params.HttpConnectionParams; import org.apache.http.params.HttpParams; import org.apache.http.util.EntityUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import com.pangdata.sdk.AbstractPang; import com.pangdata.sdk.PangException; import com.pangdata.sdk.callback.DataSharingCallback; import com.pangdata.sdk.util.JsonUtils; import com.pangdata.sdk.util.SdkUtils; public abstract class AbstractHttp extends AbstractPang { private static final Logger logger = LoggerFactory.getLogger(AbstractHttp.class); protected Map<Long, HttpClient> httpClients = new HashMap<Long, HttpClient>(); protected String url = "https://pangdata.com"; protected String username; protected String userkey; protected String fullurl; public AbstractHttp(boolean mustinvoke) { try { Properties props = SdkUtils.loadPangProperties(); String username = (String) props.get("pang.username"); if (username != null && username.trim().length() > 0) { this.username = username; } else { throw new PangException(new IllegalStateException("pang.username not found in pang.properties")); } String userkey = (String) props.get("pang.userkey"); if (userkey != null && userkey.trim().length() > 0) { this.userkey = userkey; } else { throw new PangException(new IllegalStateException("pang.userkey not found in pang.properties")); } String url = (String) props.get("pang.url"); if (url != null && url.trim().length() > 0) { this.url = url; } } catch (PangException e) { logger.error("Property error", e); throw e; } catch (IOException e) { logger.error("Could not find a pang.properties in classpath", e); throw new PangException(new FileNotFoundException("pang.properties")); } } public AbstractHttp(String username, String userkey, String uri) { if (uri != null) { this.url = uri; } this.username = username; this.userkey = userkey; } public void subscribeDataSharing(String giverUsername, String devicename, DataSharingCallback sharingDataCallback) { throw new UnsupportedOperationException(); } public void connect(String uri) throws Exception { if (uri == null) { throw new IllegalArgumentException("uri must not be null"); } this.url = uri; } public void connect(String uri, boolean anonymous) throws Exception { throw new UnsupportedOperationException(); } protected boolean sendData(HttpRequestBase request) { logger.debug("Send data to server {}", fullurl); HttpResponse response = null; HttpClient httpClient = httpClients.get(Thread.currentThread().getId()); try { if (httpClient == null) { HttpParams myParams = new BasicHttpParams(); HttpConnectionParams.setSoTimeout(myParams, 100000); HttpConnectionParams.setConnectionTimeout(myParams, 100000); // Timeout httpClient = SdkUtils.createHttpClient(url, myParams); httpClients.put(Thread.currentThread().getId(), httpClient); httpClient.getParams().setParameter(ClientPNames.HANDLE_AUTHENTICATION, false); } if (!url.toLowerCase().startsWith("http")) { url = "http://" + url; } response = httpClient.execute(request); String result = EntityUtils.toString(response.getEntity(), "UTF-8"); if (response.getStatusLine().getStatusCode() != 200) { logger.error("HTTP error: {}", result); if (response.getStatusLine().getStatusCode() == 401) { logger.error("UNAUTHORIZED ERROR. Process will be shutdown. Verify your username and userkey"); System.exit(1); } throw new IllegalStateException(String.format("HTTP error code : %s, Error message: %s", response.getStatusLine().getStatusCode(), result)); } logger.debug("Response: {}", result); Map<String, Object> responseMap = (Map<String, Object>) JsonUtils.toObject(result, Map.class); if (!(Boolean) responseMap.get("Success")) { throw new IllegalStateException(String.format("Error message: %s", responseMap.get("Message"))); } return true; } catch (Exception e) { throw new PangException(e); } } public void disconnect() { logger.info("Closing connections"); try { if (httpClients.size() > 0) { Iterator<Entry<Long, HttpClient>> iterator = httpClients.entrySet().iterator(); while (iterator.hasNext()) { iterator.next().getValue().getConnectionManager().shutdown(); } } } catch (Exception e) { logger.error("Error", e); } } protected String getUrl() { if (fullurl == null) { fullurl = String.format("%s/api/data/put/%s/%s", url, userkey, username); ; } return fullurl; } }