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Viewing changes to src/com/mdt/rtm/Invoker.java

  • Committer: Tim Su
  • Date: 2009-06-13 21:25:34 UTC
  • mfrom: (215.1.16 2.8.5)
  • Revision ID: tim@todoroo.com-20090613212534-r01v4v7qu2w4og1c
Merged from 2.8.5 branch.

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src/com/mdt/rtm/Invoker.java
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import org.apache.http.HttpHost;
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import org.apache.http.HttpResponse;
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import org.apache.http.HttpStatus;
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import org.apache.http.HttpVersion;
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import org.apache.http.client.HttpClient;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.impl.client.DefaultHttpClient;
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import org.apache.http.message.BasicHeader;
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import org.apache.http.params.BasicHttpParams;
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import org.apache.http.params.HttpProtocolParams;
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import org.apache.http.protocol.BasicHttpProcessor;
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import org.apache.http.protocol.HTTP;
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import org.apache.http.protocol.RequestConnControl;
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import org.apache.http.protocol.RequestContent;
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import org.apache.http.protocol.RequestExpectContinue;
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import org.apache.http.protocol.RequestTargetHost;
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import org.apache.http.protocol.RequestUserAgent;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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import org.w3c.dom.Node;
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    builder = aBuilder;
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  }
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  public static final String REST_SERVICE_URL_POSTFIX = "/services/rest/";
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  public static final String ENCODING = "UTF-8";
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  public static final String API_SIG_PARAM = "api_sig";
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  public static final long INVOCATION_INTERVAL = 400;
 
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  private static final String ENCODING = "UTF-8";
 
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  private static final String API_SIG_PARAM = "api_sig";
 
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  private static final long INVOCATION_INTERVAL = 400;
 
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  private static final String USER_AGENT = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)";
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  private long lastInvocation;
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  private BasicHeader basicHeader;
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  private BasicHttpParams globalHttpParams;
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  private BasicHttpProcessor httpProcessor;
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  private HttpClient httpClient;
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  public Invoker(String serverHostName, int serverPortNumber,
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            throws ServiceInternalException {
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        this.serviceRelativeUri = serviceRelativeUri;
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        new HttpHost(serverHostName, serverPortNumber);
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        globalHttpParams = new BasicHttpParams();
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        HttpProtocolParams.setVersion(globalHttpParams, HttpVersion.HTTP_1_1);
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        HttpProtocolParams.setContentCharset(globalHttpParams, ENCODING);
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        HttpProtocolParams.setUseExpectContinue(globalHttpParams, true);
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        basicHeader = new BasicHeader(HTTP.CHARSET_PARAM, ENCODING);
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        httpProcessor = new BasicHttpProcessor();
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        // Required protocol interceptors
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        httpProcessor.addInterceptor(new RequestContent());
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        httpProcessor.addInterceptor(new RequestTargetHost());
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        // Recommended protocol interceptors
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        httpProcessor.addInterceptor(new RequestConnControl());
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        httpProcessor.addInterceptor(new RequestUserAgent());
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        httpProcessor.addInterceptor(new RequestExpectContinue());
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        httpClient = new DefaultHttpClient();
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        lastInvocation = System.currentTimeMillis();
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        final HttpGet request = new HttpGet("http://"
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            + ServiceImpl.SERVER_HOST_NAME + requestUri.toString());
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        request.setHeader(basicHeader);
 
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        request.addHeader("User-Agent", USER_AGENT);
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        final String methodUri = request.getRequestLine().getUri();
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        Element result;
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                }
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            }
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        } catch (IOException e) {
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            throw new ServiceInternalException("Connection error", e);
 
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            throw new ServiceInternalException("IOException: " + e.getMessage(), e);
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        } catch (SAXException e) {
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            throw new ServiceInternalException("XML Parse Exception", e);
 
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            throw new ServiceInternalException("XML Parse: " + e.getMessage(), e);
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        } finally {
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            httpClient.getConnectionManager().closeExpiredConnections();
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        }