Salesforce Attach file to Contact Object Android

In this post we will use Attachment object for Attach file to Account, Contact, Campaign and etc..

Attachment Object described here link.

For this example i have used Spring Rest Template, Jackson, Robospice and Roboguice .

Here request class

package com.example.shanuka.salesforce_android_api.clients;

import android.os.Build;
import android.widget.Toast;

import com.example.shanuka.salesforce_android_api.DocumentUploadActivity;
import com.example.shanuka.salesforce_android_api.dto.DocumentDto;
import com.example.shanuka.salesforce_android_api.model.Authentication;
import com.example.shanuka.salesforce_android_api.model.FileCreate;
import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.octo.android.robospice.request.springandroid.SpringAndroidSpiceRequest;

import org.springframework.core.io.FileSystemResource;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.client.BufferingClientHttpRequestFactory;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.SimpleClientHttpRequestFactory;
import org.springframework.http.converter.ByteArrayHttpMessageConverter;
import org.springframework.http.converter.FormHttpMessageConverter;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.util.LinkedMultiValueMap;
import org.springframework.util.MultiValueMap;
import org.springframework.web.client.HttpClientErrorException;

import java.io.File;
import java.io.IOException;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;


public class UploadAttachmentDocument extends SpringAndroidSpiceRequest<FileCreate> {

    public final DocumentUploadActivity ctx;
    private final Authentication mAuthentication;
    public File file;
    

    public UploadAttachmentDocument(DocumentUploadActivity fragmentActivity, File fileurl, Authentication mAuthentication) {
        super(FileCreate.class);
        this.file = fileurl;
        this.ctx = fragmentActivity;
        this.mAuthentication = mAuthentication;
    }

    @Override    public FileCreate loadDataFromNetwork() throws Exception {
        String url = "https://ap2.salesforce.com/";
        String pathTemplate;

        pathTemplate = url
                + "services/data/v35.0/sobjects/Attachment";
        ObjectMapper mapper = new ObjectMapper();
        MultiValueMap<String, Object> parts = new LinkedMultiValueMap<String, Object>();


        HttpHeaders xHeader = new HttpHeaders();
        xHeader.add("Content-Disposition", "form-data; name=json");
        xHeader.setContentType(MediaType.APPLICATION_JSON);
        HttpEntity<String> xPart = new HttpEntity<>("{\"ParentId\":\"00328000009wzlIAAQ\",\"Name\":\""+file.getName()+"\"}", xHeader);
        parts.add("json", xPart);
        


        FileSystemResource fileSystemResource = new FileSystemResource(file.getAbsoluteFile()) {

            @Override            public String getFilename() {
   
                return file.getName();
            }
        };


        HttpHeaders headers = new HttpHeaders();
        headers.add("Content-Disposition", "form-data; name=\"Body\"; filename=\""+file.getName()+"\"");
        headers.setContentType(MediaType.IMAGE_JPEG);
        HttpEntity httpEntity = new HttpEntity(fileSystemResource, headers);
        parts.add("Body", httpEntity);


        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.FROYO) {
            System.setProperty("http.keepAlive", "false");
        }


        FormHttpMessageConverter formHttpMessageConverter = new FormHttpMessageConverter();

        formHttpMessageConverter.setCharset(Charset.forName("UTF8"));
        getRestTemplate().getMessageConverters().add(
                formHttpMessageConverter);
        getRestTemplate().getMessageConverters().add(
                new ByteArrayHttpMessageConverter());

        getRestTemplate().getMessageConverters().add(
                new StringHttpMessageConverter());
        getRestTemplate().setRequestFactory(new BufferingClientHttpRequestFactory(new SimpleClientHttpRequestFactory()));
        

        HttpHeaders httpHeaders = new HttpHeaders();
        httpHeaders.add("Authorization", mAuthentication.getAuthentication());
        httpHeaders.setContentType(MediaType.MULTIPART_FORM_DATA);
        HttpEntity<MultiValueMap<String, Object>> request = new HttpEntity<MultiValueMap<String, Object>>(
                parts, httpHeaders);;

        List<ClientHttpRequestInterceptor> interceptors = new ArrayList<ClientHttpRequestInterceptor>();
        LoggerInterceptor loggerInterceptor = new LoggerInterceptor();
        interceptors.add(loggerInterceptor);
        getRestTemplate().setInterceptors(interceptors);


        try {

            return getRestTemplate().postForObject(pathTemplate, request, FileCreate.class);
        } catch (HttpClientErrorException e2) {


            //            try {

                final String mLoginError = mapper.readValue(
                        e2.getResponseBodyAsString(), String.class);
                ctx.runOnUiThread(new Runnable() {

                    @Override                    public void run() {
                        // TODO Auto-generated method stub                        Toast.makeText(ctx.getApplicationContext(),
                                "" + mLoginError, Toast.LENGTH_SHORT)
                                .show();
                    }
                });

                // throw new SpiceException(mLoginError.getErrorDescription());
            } catch (JsonGenerationException e) {

                e.printStackTrace();

            } catch (JsonMappingException e) {

                e.printStackTrace();

            } catch (IOException e) {

                e.printStackTrace();

            }
            throw e2;
        }

    }
}

you can find full source code Github