Mega Code Archive
Rest Client
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/*******************************************************************************
* Copyright (c) 2011 Benjamin Gmeiner.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Public License v2.0
* which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* Contributors:
* Benjamin Gmeiner - Project Owner
******************************************************************************/
//package com.mediaportal.ampdroid.api.rest;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URLEncoder;
import java.util.ArrayList;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;
public class RestClient {
public enum RequestMethod {
GET, POST
}
private ArrayList<NameValuePair> params;
private ArrayList<NameValuePair> headers;
private String contentBody;
private String url;
private int responseCode;
private String message;
private String response;
public String getResponse() {
return response;
}
public String getErrorMessage() {
return message;
}
public int getResponseCode() {
return responseCode;
}
public RestClient(String url) {
this.url = url;
params = new ArrayList<NameValuePair>();
headers = new ArrayList<NameValuePair>();
}
public void AddParam(String name, String value) {
params.add(new BasicNameValuePair(name, value));
}
public void AddHeader(String name, String value) {
headers.add(new BasicNameValuePair(name, value));
}
public void Execute(RequestMethod method) throws Exception {
switch (method) {
case GET: {
// add parameters
String combinedParams = "";
if (!params.isEmpty()) {
combinedParams += "?";
for (NameValuePair p : params) {
String paramString = p.getName() + "=" + URLEncoder.encode(p.getValue(), "UTF-8");
if (combinedParams.length() > 1) {
combinedParams += "&" + paramString;
} else {
combinedParams += paramString;
}
}
}
HttpGet request = new HttpGet(url + combinedParams);
// add headers
for (NameValuePair h : headers) {
request.addHeader(h.getName(), h.getValue());
}
executeRequest(request, url);
break;
}
case POST: {
HttpPost request = new HttpPost(url);
// add headers
for (NameValuePair h : headers) {
request.addHeader(h.getName(), h.getValue());
}
if (contentBody != null) {
request.setEntity(new StringEntity(contentBody));
request.setHeader("Content-Type", "application/x-www-form-urlencoded");
} else if (!params.isEmpty()) {
request.setEntity(new UrlEncodedFormEntity(params, HTTP.UTF_8));
}
executeRequest(request, url);
break;
}
}
}
private void executeRequest(HttpUriRequest request, String url) {
HttpClient client = new DefaultHttpClient();
// client.getParams().s
HttpResponse httpResponse;
try {
httpResponse = client.execute(request);
responseCode = httpResponse.getStatusLine().getStatusCode();
message = httpResponse.getStatusLine().getReasonPhrase();
HttpEntity entity = httpResponse.getEntity();
if (entity != null) {
InputStream instream = entity.getContent();
response = convertStreamToString(instream);
// Closing the input stream will trigger connection release
instream.close();
}
} catch (ClientProtocolException e) {
client.getConnectionManager().shutdown();
e.printStackTrace();
} catch (IOException e) {
client.getConnectionManager().shutdown();
e.printStackTrace();
}
}
private static String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
public void setContentBody(String _body) {
contentBody = _body;
}
}
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