text_analytics.OpenCalaisKE.java Source code

Introduction

Here is the source code for text_analytics.OpenCalaisKE.java

Source

package text_analytics;

import java.io.IOException;
import java.io.InputStream;

import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.ParseException;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;

public class OpenCalaisKE {
    String licenseID = "dxmdj88nhh5x5rbcpafhsvrr";

    // 1. Web service URL for improved REST API is located at http://api.opencalais.com/tag/rs/enrich
    private static final String CALAIS_URL = "http://api.opencalais.com/tag/rs/enrich";

    HttpClient httpClient;
    // 2. Clients should create an HTTP POST request.
    HttpPost postMethod;

    public OpenCalaisKE() {
        httpClient = HttpClients.createDefault();
    }

    private HttpPost postMethod(String content) {
        postMethod = new HttpPost(CALAIS_URL);

        // Set mandatory parameters
        postMethod.addHeader("x-calais-licenseID", licenseID);
        postMethod.addHeader("Content-type", "text/raw; charset=UTF-8");

        // 3. Document content should be passed as the body of the HTTP request.
        StringEntity se = new StringEntity(content, ContentType.create("text/plain", "UTF-8"));
        postMethod.setEntity(se);

        // Set response/output format
        //postMethod.addHeader("Accept", "xml/rdf");
        postMethod.addHeader("Accept", "application/json");

        // Enable Social Tags processing
        postMethod.addHeader("enableMetadataType", "SocialTags");

        return postMethod;
    }

    private void doRequest(HttpPost method) throws ClientProtocolException, IOException {
        HttpResponse httpResponse = httpClient.execute(method);
        HttpEntity entity = httpResponse.getEntity();

        if (entity != null) {
            try {
                System.out.println("Entity results: \n" + EntityUtils.toString(entity));
            } catch (ParseException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IOException e) {
                System.err.println(e);
            }
        }
    }

    public static void main(String[] args) throws ClientProtocolException, IOException {
        OpenCalaisKE op = new OpenCalaisKE();
        String content = "Noam Wasserman, the Harvard Business School professor and author of The Founders Dilemmas, found an interesting "
                + "trend in the tenure of startup founder-CEOs: in his analysis of more than 200 startups, fewer than 50% of CEOs remained "
                + "after three years. This number dropped to 40% after four years and 25% through the IPO. Its a notable but unsurprising "
                + "statistic  nearly all founders reach an inflection point where their responsibilities broaden and new challenges emerge."
                + " Since my co-founders and I started Invoca in 2008, my role as founder-CEO has broadened from proving a concept and building "
                + "a team to managing personnel and scaling operations. With a few exceptions  the Gates, Zuckerbergs and Ellisons of the "
                + "world  these are very different skill sets. And all of your stakeholders benefit when you understand how your skills and passions "
                + "align with each stage of your companys growth. Im an early stage guy. There. I said it. I like to create and prove things. I like "
                + "to do things that people think cant be done. I like to light the light bulb for people. In the past year or so, Invoca has entered a "
                + "new stage that requires a different skill set. In the midst of our success, I found myself increasingly doing more of the stuff I "
                + "dont enjoy and less of the stuff I do. So, with my founder hat off and my shareholder hat on, I set out to find a new CEO with a "
                + "skill set and experience thats a better fit for Invocas next stage of growth. The bar was very high. Were incredibly fortunate to "
                + "have found an experienced public SaaS company CEO whos joining Invoca as we prepare for an expected IPO. Heres what Ive learned so "
                + "far from the process of hiring a new CEO:";

        HttpPost myMethod = op.postMethod(content);
        op.doRequest(myMethod);
    }

}