com.mycompany.semconsolewebapp.FileUpload.java Source code

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Here is the source code for com.mycompany.semconsolewebapp.FileUpload.java

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package com.mycompany.semconsolewebapp;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.multipart.MultipartRequestEntity;
import org.apache.commons.httpclient.methods.multipart.*;

public class FileUpload {
    final static String LOCAL_PATH = "http://localhost:13080/";
    final static String DEPOLYED_PATH = "http://semphotogallery.appspot.com/";

    final static boolean IS_LOCAL = false;

    public static void uploadFileToServer(Part[] parts)
            throws FileNotFoundException, IOException, MalformedURLException {
        String stem = DEPOLYED_PATH;
        if (IS_LOCAL) {
            stem = LOCAL_PATH;
        }

        String uploadUrl = getUploadURL(stem + "geturl");
        uploadImage(uploadUrl, parts);
    }

    public static void uploadImage(String urlString, Part[] parts) throws FileNotFoundException, IOException {
        PostMethod postMessage = new PostMethod(urlString);
        postMessage.setRequestEntity(new MultipartRequestEntity(parts, postMessage.getParams()));
        HttpClient client = new HttpClient();

        int status = client.executeMethod(postMessage);
        System.out.println("Got status message " + status);
    }

    public static String getUploadURL(String reqURL) throws MalformedURLException, IOException {

        URL url = new URL(reqURL);
        BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream()));

        return in.readLine(); // Will only ever return one line, so we don't need a loop
    }

    public static void uploadFileAndMetaDataToServer(String imagePath, String operators, String channel, int kv,
            int mag, int wd) throws FileNotFoundException {
        File f = new File(imagePath);
        Part[] parts = { new StringPart("working_depth", Integer.toString(wd)),
                new StringPart("magnification", Integer.toString(mag)),
                new StringPart("voltage", Integer.toString(kv * 1000)), new StringPart("operators", operators),
                new StringPart("sensor", channel), new StringPart("update_metadata", "1"), new FilePart("img", f) };
        try {
            uploadFileToServer(parts);
        } catch (IOException e) {
        }
    }

    public static void uploadFileToServer(String imagePath) {
        String stem = DEPOLYED_PATH;
        if (IS_LOCAL) {
            stem = LOCAL_PATH;
        }

        try {
            String uploadURL = getUploadURL(stem + "geturl");
            Part[] p = { new FilePart("img", new File(imagePath)) };
            uploadImage(uploadURL, p);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}