com.wms.opensource.images3android.images3.ImageS3Service.java Source code

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Here is the source code for com.wms.opensource.images3android.images3.ImageS3Service.java

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/*
 * Copyright 2015 Waterloo Mobile Studio
 *
 * 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.wms.opensource.images3android.images3;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpDelete;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.InputStreamEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.util.EntityUtils;

public class ImageS3Service {

    public static final int NUMBER_OF_IMAGES_PER_PAGE = 15;

    private static HttpClient client = null;

    private static HttpClient getClient() {
        if (client == null) {
            client = new DefaultHttpClient();
        }
        return client;
    }

    public static int addImage(String baseUrl, String imagePlantId, String filePath) {
        File file = new File(filePath);
        try {
            HttpClient client = getClient();

            String url = baseUrl + imagePlantId + "/images";
            HttpPost httppost = new HttpPost(url);
            InputStreamEntity reqEntity = new InputStreamEntity(new FileInputStream(file), -1);
            reqEntity.setContentType("binary/octet-stream");
            reqEntity.setChunked(true);
            httppost.setEntity(reqEntity);
            HttpResponse response = client.execute(httppost);
            return response.getStatusLine().getStatusCode();
        } catch (Exception e) {
            return -1;
        }
    }

    public static String retrieveImages(String baseUrl, String imagePlantId, String pageToken)
            throws ClientProtocolException, IOException {
        String url = baseUrl + imagePlantId + "/images";
        if (!pageToken.isEmpty()) {
            url += "?page=" + pageToken;
        }
        return getResponse(url);
    }

    public static String retrieveImagePlant(String baseUrl, String imagePlantId) {
        String url = baseUrl + imagePlantId;
        return getResponse(url);
    }

    public static String retrieveTemplateCollection(String baseUrl, String imagePlantId) {
        String url = baseUrl + imagePlantId + "/templates?page=";
        return getResponse(url);
    }

    public static String getImageFileUrlInTemplate(String baseUrl, String imagePlantId, String imageId,
            String templateName) {
        return baseUrl + imagePlantId + "/imagefiles/" + imageId + "?template=" + templateName;
    }

    private static String getResponse(String url) {
        HttpClient client = getClient();
        HttpGet httpGet = new HttpGet(url);
        httpGet.addHeader("Accept", "application/json");
        HttpResponse response;
        try {
            response = client.execute(httpGet);
            int code = response.getStatusLine().getStatusCode();
            if (code == 200) {
                if (response.getEntity() != null) {
                    HttpEntity resEntity = response.getEntity();
                    return EntityUtils.toString(resEntity);
                }
            }
        } catch (ClientProtocolException e) {

        } catch (IOException e) {

        }

        return null;
    }

    public static boolean deleteImage(String baseUrl, String imagePlantId, String imageId) {
        HttpClient client = getClient();
        String url = baseUrl + imagePlantId + "/images/" + imageId;
        HttpDelete httpDelete = new HttpDelete(url);
        HttpResponse response;
        try {
            response = client.execute(httpDelete);
            int code = response.getStatusLine().getStatusCode();
            if (code == 204) {
                return true;
            }
        } catch (ClientProtocolException e) {

        } catch (IOException e) {

        }
        return false;
    }

}