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Java example source code file (RendersResource.java)

This example Java source code file (RendersResource.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

fileinputstream, get, ioexception, override, path, post, produces, rendersresource, response, streamingoutput, string, util, webapplicationexception

The RendersResource.java Java example source code

 *  * Copyright 2015 Skymind,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 org.deeplearning4j.ui.renders;

import org.apache.commons.compress.utils.IOUtils;

import javax.activation.MimetypesFileTypeMap;
import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.StreamingOutput;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Collections;
import java.util.Map;

 * Renders filters
 * @author Adam Gibson
public class RendersResource {
    private String imagePath = "render.png";

    public Response update(PathUpdate path) {
        this.imagePath = path.getPath();
        return Response.ok(Collections.singletonMap("status","updated path")).build();

    public Response image() {
        if(imagePath == null) {
            throw new WebApplicationException(404);

        final File f = new File(imagePath);

        if (!f.exists()) {
            throw new WebApplicationException(404);

        return Response.ok().entity(new StreamingOutput() {
            public void write(OutputStream output) throws IOException, WebApplicationException {
                FileInputStream fis = new FileInputStream(f);
                byte[] bytes = IOUtils.toByteArray(fis);



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