se.vgregion.pubsub.push.impl.HttpUtil.java Source code

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Here is the source code for se.vgregion.pubsub.push.impl.HttpUtil.java

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/**
 * Copyright 2010 Vstra Gtalandsregionen
 *
 *   This library is free software; you can redistribute it and/or modify
 *   it under the terms of version 2.1 of the GNU Lesser General Public
 *   License as published by the Free Software Foundation.
 *
 *   This library is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU Lesser General Public License for more details.
 *
 *   You should have received a copy of the GNU Lesser General Public
 *   License along with this library; if not, write to the
 *   Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 *   Boston, MA 02111-1307  USA
 *
 */

package se.vgregion.pubsub.push.impl;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;

import nu.xom.Document;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.HttpConnectionParams;

public class HttpUtil {

    public static DefaultHttpClient getClient() {
        DefaultHttpClient client = new DefaultHttpClient();
        //ConnManagerParams.setMaxTotalConnections(client.getParams(), 100);
        HttpConnectionParams.setConnectionTimeout(client.getParams(), 10000);
        HttpConnectionParams.setSoTimeout(client.getParams(), 10000);

        return client;
    }

    public static boolean successStatus(HttpResponse response) {
        int status = response.getStatusLine().getStatusCode();
        return status >= 200 && status < 300;
    }

    public static String readContent(HttpEntity entity) throws IOException {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        entity.writeTo(out);

        return out.toString("UTF-8");
    }

    public static HttpEntity createEntity(String s) {
        try {
            return new StringEntity(s, "UTF-8");
        } catch (UnsupportedEncodingException shouldNeverHappen) {
            throw new RuntimeException(shouldNeverHappen);
        }
    }

    public static HttpEntity createEntity(Document doc) {
        try {
            return new StringEntity(doc.toXML(), "UTF-8");
        } catch (UnsupportedEncodingException shouldNeverHappen) {
            throw new RuntimeException(shouldNeverHappen);
        }
    }

    public static List<String> getContentTypes(HttpResponse response) {
        Header[] contentTypes = response.getHeaders("Content-Type");
        List<String> contentTypesStr = new ArrayList<String>();

        for (Header contentType : contentTypes) {
            contentTypesStr.add(contentType.getValue());
        }
        return contentTypesStr;
    }

    public static void closeQuitely(HttpResponse response) {
        if (response != null && response.getEntity() != null) {
            try {
                response.getEntity().getContent().close();
            } catch (IOException ignore) {
            } catch (IllegalStateException ignore) {
            }
        }
    }
}