CallMLP.java

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package com.uem.gsi.cleim.scl;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.util.URIUtil;

import com.uem.gsi.cleim.util.Constants;

public class CallMLP {
  
        //MEDLINEPLUS Web service parameter defaults
  private String healthTopics="healthTopics";
  private String term = "";
  private String logic = "+";
  private String retstart ="0";
  private String retmax ="100";
  
        public String doMLPQuery(){
                String sSource="";
                try {
          HttpClient client = new HttpClient();
      GetMethod method=new GetMethod(Constants.MLP_SEARCH);
      String urlenc=URIUtil.encodeQuery("db="+healthTopics+
                         "&term="+term+"&retstart="+retstart+"&retmax="+retmax);
      urlenc=urlenc.replaceAll("%20", logic);
      method.setQueryString(urlenc);
      // Execute the GET method
                        int statusCode = client.executeMethod(method);
                        if( statusCode != -1 ) {
                          sSource = method.getResponseBodyAsString();
                          method.releaseConnection();
                        }else{
                                sSource="<statusCode>"+statusCode+"</statusCode>";
                        }
    }
    catch( Exception e ) {
      e.printStackTrace();
    }
                return sSource;
        }
        public void setTerm(String pterm){
                this.term=pterm;
        }
        public void setLogic(String plogic){
                this.logic=plogic;
        }
        public void setRetstart(String pretstart){
                this.retstart=pretstart;
        }
        public void setRetmax(String pretmax){
                this.retmax=pretmax;
        }
        
        public static void main (String[] args){
                CallMLP cm=new CallMLP();
                cm.setTerm("prostate cancer");
                //cm.setLogic("+OR+");
                System.out.println(cm.doMLPQuery());
        }
}