com.appassit.http.ApiRequestFactory.java Source code

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Here is the source code for com.appassit.http.ApiRequestFactory.java

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/*
 * Copyright (C) 2010 mAPPn.Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.appassit.http;

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

import org.apache.http.HttpEntity;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.client.methods.HttpUriRequest;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;

/**
 * ?API
 */
public class ApiRequestFactory {

    /**
     * ?Market API HttpReqeust
     */
    public static HttpUriRequest getRequest(String url, RequestMethod requestMethod,
            ArrayList<BasicNameValuePair> cv) throws IOException {

        if (requestMethod == RequestMethod.GET) {
            String finalUrl = getGetRequestUrl(url, cv);
            HttpGet httpGet = new HttpGet(finalUrl);
            return httpGet;
        } else if (requestMethod == RequestMethod.POST) {
            HttpEntity entity = getPostRequestEntity(cv);
            HttpPost request = new HttpPost(url);
            request.setEntity(entity);
            return request;
        } else {
            return null;
        }
    }

    /**
     * GETurl
     * 
     * @param url
     * @param params
     * @return
     */
    private static String getGetRequestUrl(String url, ArrayList<BasicNameValuePair> params) {
        if (params == null || params.size() == 0) {
            return url;
        }
        StringBuilder builder = new StringBuilder();
        builder.append(url).append("?");
        for (BasicNameValuePair entry : params) {
            Object obj = entry.getValue();
            if (obj == null)
                continue;
            builder.append(entry.getName()).append("=").append(entry.getValue()).append("&");
        }
        builder.deleteCharAt(builder.length() - 1);
        return builder.toString();

    }

    /**
     * POSTHttpEntity
     * 
     * @param params
     *            ?
     * @throws UnsupportedEncodingException
     *             ???UTF8??
     */
    private static HttpEntity getPostRequestEntity(ArrayList<BasicNameValuePair> params)
            throws UnsupportedEncodingException {
        if (params == null || params.isEmpty())
            return null;

        return new UrlEncodedFormEntity(params, HTTP.UTF_8);
    }
}