RestClient.java :  » Geo » geochat-lgw-android » org » instedd » geochat » lgw » msg » Android Open Source

package org.instedd.geochat.lgw.msg;

import java.io.IOException;
import java.util.List;

import org.apache.http.HttpMessage;
import org.apache.http.HttpResponse;
import org.apache.http.HttpVersion;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpHead;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpPut;
import org.apache.http.conn.params.ConnManagerParams;
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.entity.StringEntity;
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.CoreProtocolPNames;
import org.apache.http.params.HttpConnectionParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.apache.http.protocol.BasicHttpContext;

import android.content.Context;

public class RestClient implements IRestClient {
  
  private HttpClient client;
  private String auth;
  
  public RestClient(Context context) {
    this.client = initClient(context);
  }

  private HttpClient initClient(Context context) {
    // Create and initialize HTTP parameters
    HttpParams params = new BasicHttpParams();
    ConnManagerParams.setMaxTotalConnections(params, 20);
    
    // 30 seconds timeout
    HttpConnectionParams.setConnectionTimeout(params, 30 * 1000);
    HttpConnectionParams.setSoTimeout(params, 30 * 1000);
    
    HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
    
      SchemeRegistry registry = new SchemeRegistry();
        registry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
        // Register for port 443 our SSLSocketFactory with our keystore
        // to the ConnectionManager
        registry.register(new Scheme("https", SSLSocketFactory.getSocketFactory(), 443));
        ThreadSafeClientConnManager conman = new ThreadSafeClientConnManager(params, registry);
      
    return new DefaultHttpClient(conman, params);
  }
  
  @Override
  public HttpResponse get(String url) throws IOException {
    return get(url, null);
  }

  public HttpResponse get(String url, List<NameValuePair> headers) throws IOException {
    HttpGet get = auth(new HttpGet(url));
    if (headers != null)
      for(NameValuePair header : headers)
        get.addHeader(header.getName(), header.getValue());
    return this.client.execute(get, new BasicHttpContext());
  }
  
  @Override
  public HttpResponse head(String url) throws IOException {
    HttpHead head = auth(new HttpHead(url));
    return this.client.execute(head, new BasicHttpContext());
  }
  
  public HttpResponse post(String url, String data, String contentType) throws IOException {
    HttpPost post = auth(new HttpPost(url));
    
    StringEntity entity = new StringEntity(data, "UTF-8");
    entity.setContentType(contentType);

    post.setEntity(entity);
    post.getParams().setBooleanParameter(CoreProtocolPNames.USE_EXPECT_CONTINUE, false);
    
    return this.client.execute(post, new BasicHttpContext());
  }
  
  public HttpResponse put(String url, String data, String contentType) throws IOException {
    HttpPut post = auth(new HttpPut(url));
    
    StringEntity entity = new StringEntity(data, "UTF-8");
    entity.setContentType(contentType);

    post.setEntity(entity);
    post.getParams().setBooleanParameter(CoreProtocolPNames.USE_EXPECT_CONTINUE, false);
    
    return this.client.execute(post, new BasicHttpContext());
  }

  public void setAuth(String user, String password) {
    this.auth = "Basic " + Base64.encodeBytes((user + ":" + password).getBytes());
  }
  
  private <T extends HttpMessage> T auth(T request) {
    if (auth != null) {
      request.addHeader("Authorization", auth);
    }
    return request;
  }

}