Add example project

Author: Acconut

example/assets/prairie.jpg

@@ -0,0 +1,5 @@
+apply plugin: 'java'
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+}

example/build.gradle

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+package io.tus.java.example;
+
+import java.io.File;
+import java.net.URL;
+
+import io.tus.java.client.TusClient;
+import io.tus.java.client.TusURLMemoryStore;
+import io.tus.java.client.TusUpload;
+import io.tus.java.client.TusUploader;
+
+public class Main {
+    public static void main(String[] args) {
+        try {
+            // Create a new TusClient instance
+            TusClient client = new TusClient();
+
+            // Configure tus HTTP endpoint. This URL will be used for creating new uploads
+            // using the Creation extension
+            client.setUploadCreationURL(new URL("http://localhost:1080/files/"));
+
+            // Enable resumable uploads by storing the upload URL in memory
+            client.enableResuming(new TusURLMemoryStore());
+
+            // Open a file using which we will then create a TusUpload. If you do not have
+            // a File object, you can manually construct a TusUpload using an InputStream.
+            // See the documentation for more information.
+            File file = new File("./example/assets/prairie.jpg");
+            TusUpload upload = new TusUpload(file);
+
+            // First try to resume an upload. If that's not possible we will create a new
+            // upload and get a TusUploader in return. This class is responsible for opening
+            // a connection to the remote server and doing the uploading.
+            TusUploader uploader = client.resumeOrCreateUpload(upload);
+
+            System.out.println("Starting upload...");
+
+            // Upload the file in chunks of 1KB as long as data is available. Once the
+            // file has been fully uploaded the method will return -1
+            while (uploader.uploadChunk(1024) > -1) {
+                // Calculate the progress using the total size of the uploading file and
+                // the current offset.
+                long totalBytes = upload.getSize();
+                long bytesUploaded = uploader.getOffset();
+                double progress = (double) bytesUploaded / totalBytes * 100;
+
+                System.out.printf("Upload at %06.2f%%.\n", progress);
+            }
+
+            // Allow the HTTP connection to be closed and cleaned up
+            uploader.finish();
+
+            System.out.println("Upload finished.");
+            System.out.format("Upload available at: %s", uploader.getUploadURL().toString());
+        } catch(Exception e) {
+            e.printStackTrace();
+        }
+
+    }
+}

example/src/main/java/io/tus/java/example/Main.java

@@ -1 +1,2 @@
+include ':example'
 rootProject.name = 'tus-java-client'