org.semanticscience.PDBAptamerRetriever.shared.URLReader.java Source code

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Here is the source code for org.semanticscience.PDBAptamerRetriever.shared.URLReader.java

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/**
 * Copyright (c) 2013  Jose Cruz-Toledo
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package org.semanticscience.PDBAptamerRetriever.shared;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URI;
import java.net.URISyntaxException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.CookieStore;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.protocol.ClientContext;
import org.apache.http.impl.client.BasicCookieStore;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;

/**
 * @author Jose Cruz-Toledo
 * 
 */
public class URLReader {
    private String contents;
    private CookieStore cookieStore;
    private HttpContext localContext;

    public URLReader(String scheme, String host, String path, String query) {
        cookieStore = new BasicCookieStore();
        localContext = new BasicHttpContext();
        localContext.setAttribute(ClientContext.COOKIE_STORE, cookieStore);
        contents = this.getStringFromURLGET(scheme, host, path, query);

    }

    private String getStringFromURLGET(String scheme, String host, String path, String query) {
        String returnMe;
        try {
            URI uri = new URI(scheme, host, path, query, null);
            DefaultHttpClient client = new DefaultHttpClient();
            HttpGet get = new HttpGet(uri);
            try {
                HttpResponse response = client.execute(get, localContext);
                HttpEntity entity = response.getEntity();
                if (entity != null) {
                    InputStream is = entity.getContent();
                    String s = convertinputStreamToString(is);
                    returnMe = s;
                    // Do not need the rest
                    get.abort();
                    return returnMe;
                }
            } catch (ClientProtocolException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

        } catch (URISyntaxException e) {
            e.printStackTrace();
        }
        return null;
    }

    public String convertinputStreamToString(InputStream ists) throws IOException {
        if (ists != null) {
            StringBuilder sb = new StringBuilder();
            String line;
            try {
                BufferedReader r1 = new BufferedReader(new InputStreamReader(ists, "UTF-8"));
                while ((line = r1.readLine()) != null) {
                    sb.append(line).append("\n");
                }
            } finally {
                ists.close();
            }
            return sb.toString();
        } else {
            return "";
        }
    }

    /**
     * @return the contents
     */
    public String getContents() {
        return contents;
    }

    /**
     * @param contents the contents to set
     */
    private void setContents(String contents) {
        this.contents = contents;
    }

    /**
     * @return the cookieStore
     */
    public CookieStore getCookieStore() {
        return cookieStore;
    }

    /**
     * @param cookieStore the cookieStore to set
     */
    private void setCookieStore(CookieStore cookieStore) {
        this.cookieStore = cookieStore;
    }

    /**
     * @return the localContext
     */
    public HttpContext getLocalContext() {
        return localContext;
    }

    /**
     * @param localContext the localContext to set
     */
    private void setLocalContext(HttpContext localContext) {
        this.localContext = localContext;
    }

}