com.cognifide.aet.rest.ArtifactServlet.java Source code

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Here is the source code for com.cognifide.aet.rest.ArtifactServlet.java

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/**
 * Automated Exploratory Tests
 *
 * Copyright (C) 2013 Cognifide Limited
 *
 * 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.cognifide.aet.rest;

import com.cognifide.aet.vs.Artifact;
import com.cognifide.aet.vs.ArtifactsDAO;
import com.cognifide.aet.vs.DBKey;

import org.apache.commons.io.IOUtils;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.ConfigurationPolicy;
import org.apache.felix.scr.annotations.Deactivate;
import org.apache.felix.scr.annotations.Reference;
import org.apache.felix.scr.annotations.Service;

import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@Service
@Component(label = "ArtifactDataContent", description = "Data Storage information service", immediate = true, metatype = true, policy = ConfigurationPolicy.IGNORE)
public class ArtifactServlet extends BasicDataServlet {

    private static final long serialVersionUID = 1867870883439947956L;

    @Reference
    private ArtifactsDAO artifactsDAO;

    @Override
    protected void process(DBKey dbKey, HttpServletRequest req, HttpServletResponse resp) throws IOException {
        String id = req.getParameter(Helper.ID_PARAM);
        resp.setCharacterEncoding("UTF-8");
        Artifact artifact = artifactsDAO.getArtifact(dbKey, id);
        if (artifact != null) {
            resp.setContentType(artifact.getContentType());
            resp.setHeader("Cache-Control", "public, max-age=31536000");

            OutputStream output = resp.getOutputStream();
            IOUtils.copy(artifact.getArtifactStream(), output);
            output.flush();
        } else {
            resp.setStatus(HttpURLConnection.HTTP_BAD_REQUEST);
            resp.setContentType("application/json");
            resp.getWriter()
                    .write(responseAsJson("Unable to get artifact with id : %s form %s", id, dbKey.toString()));
        }
    }

    @Activate
    public void start() {
        register(Helper.getArtifactPath());

    }

    @Deactivate
    public void stop() {
        unregister(Helper.getArtifactPath());
    }
}