org.apache.hyracks.control.cc.web.ApplicationInstallationHandler.java Source code

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Here is the source code for org.apache.hyracks.control.cc.web.ApplicationInstallationHandler.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.hyracks.control.cc.web;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

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

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.IOUtils;
import org.apache.hyracks.control.cc.ClusterControllerService;
import org.apache.hyracks.control.common.work.SynchronizableWork;
import org.eclipse.jetty.http.HttpMethod;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.AbstractHandler;

public class ApplicationInstallationHandler extends AbstractHandler {
    private ClusterControllerService ccs;

    public ApplicationInstallationHandler(ClusterControllerService ccs) {
        this.ccs = ccs;
    }

    @Override
    public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response)
            throws IOException, ServletException {
        try {
            while (target.startsWith("/")) {
                target = target.substring(1);
            }
            while (target.endsWith("/")) {
                target = target.substring(0, target.length() - 1);
            }
            String[] parts = target.split("/");
            if (parts.length != 1) {
                return;
            }
            final String[] params = parts[0].split("&");
            String deployIdString = params[0];
            String rootDir = ccs.getServerContext().getBaseDir().toString();
            final String deploymentDir = rootDir.endsWith(File.separator)
                    ? rootDir + "applications/" + deployIdString
                    : rootDir + File.separator + "/applications/" + File.separator + deployIdString;
            switch (HttpMethod.valueOf(request.getMethod())) {
            case PUT: {
                class OutputStreamGetter extends SynchronizableWork {
                    private OutputStream os;

                    @Override
                    protected void doRun() throws Exception {
                        FileUtils.forceMkdir(new File(deploymentDir));
                        String fileName = params[1];
                        File jarFile = new File(deploymentDir, fileName);
                        os = new FileOutputStream(jarFile);
                    }
                }
                OutputStreamGetter r = new OutputStreamGetter();
                try {
                    ccs.getWorkQueue().scheduleAndSync(r);
                } catch (Exception e) {
                    throw new IOException(e);
                }
                try {
                    IOUtils.copyLarge(request.getInputStream(), r.os);
                } finally {
                    r.os.close();
                }
                break;
            }
            case GET: {
                class InputStreamGetter extends SynchronizableWork {
                    private InputStream is;

                    @Override
                    protected void doRun() throws Exception {
                        String fileName = params[1];
                        File jarFile = new File(deploymentDir, fileName);
                        is = new FileInputStream(jarFile);
                    }
                }
                InputStreamGetter r = new InputStreamGetter();
                try {
                    ccs.getWorkQueue().scheduleAndSync(r);
                } catch (Exception e) {
                    throw new IOException(e);
                }
                if (r.is == null) {
                    response.setStatus(HttpServletResponse.SC_NOT_FOUND);
                } else {
                    response.setContentType("application/octet-stream");
                    response.setStatus(HttpServletResponse.SC_OK);
                    try {
                        IOUtils.copyLarge(r.is, response.getOutputStream());
                    } finally {
                        r.is.close();
                    }
                }
                break;
            }
            default:
                throw new IllegalArgumentException(request.getMethod());
            }
            baseRequest.setHandled(true);
        } catch (IOException e) {
            e.printStackTrace();
            throw e;
        }
    }
}