org.apache.nutch.webui.client.impl.RemoteCommandsBatchFactory.java Source code

Introduction

Here is the source code for org.apache.nutch.webui.client.impl.RemoteCommandsBatchFactory.java

Source

/**
 * 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.nutch.webui.client.impl;

import java.util.List;
import java.util.UUID;

import org.apache.nutch.webui.client.model.Crawl;
import org.apache.nutch.webui.client.model.JobInfo.JobType;
import org.joda.time.Duration;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;

import com.google.common.collect.Lists;

@Component
@Scope(BeanDefinition.SCOPE_PROTOTYPE)
public class RemoteCommandsBatchFactory {

    private List<RemoteCommand> remoteCommands;
    private Crawl crawl;

    private String batchId;

    public List<RemoteCommand> createCommands(Crawl crawl) {
        this.crawl = crawl;
        this.remoteCommands = Lists.newArrayList();

        remoteCommands.add(inject());
        for (int i = 0; i < crawl.getNumberOfRounds(); i++) {
            remoteCommands.addAll(createBatchCommands());
        }
        return remoteCommands;
    }

    private List<RemoteCommand> createBatchCommands() {
        this.batchId = UUID.randomUUID().toString();
        List<RemoteCommand> batchCommands = Lists.newArrayList();

        batchCommands.add(createGenerateCommand());
        batchCommands.add(createFetchCommand());
        batchCommands.add(createParseCommand());
        batchCommands.add(createUpdateDbCommand());
        batchCommands.add(createIndexCommand());

        return batchCommands;
    }

    private RemoteCommand inject() {
        RemoteCommandBuilder builder = RemoteCommandBuilder.instance(JobType.INJECT).withCrawlId(crawl.getCrawlId())
                .withArgument("seedDir", crawl.getSeedDirectory());
        return builder.build();
    }

    private RemoteCommand createGenerateCommand() {
        return createBuilder(JobType.GENERATE).build();
    }

    private RemoteCommand createFetchCommand() {
        return createBuilder(JobType.FETCH).withTimeout(Duration.standardSeconds(50)).build();
    }

    private RemoteCommand createParseCommand() {
        return createBuilder(JobType.PARSE).build();
    }

    private RemoteCommand createIndexCommand() {
        return createBuilder(JobType.INDEX).build();
    }

    private RemoteCommand createUpdateDbCommand() {
        return createBuilder(JobType.UPDATEDB).build();
    }

    private RemoteCommandBuilder createBuilder(JobType jobType) {
        return RemoteCommandBuilder.instance(jobType).withCrawlId(crawl.getCrawlId()).withArgument("batch",
                batchId);
    }

}