Gora官方范例

参考官方文档：http://gora.apache.org/current/tutorial.html

项目代码见：https://code.csdn.net/jediael_lu/mygorademo

一、环境准备
1、下载gora并解压

2、分别进入$GORA_HOME/gora-hbase/，$GORA_HOME/gora-core，$GORA_HOME/gora-compiler，$GORA_HOME/gora-compiler-CLI执行
$ mvn clean install

或者直接在$GORA_HOME执行此命令。

3、启动hbase，需要有zookeeper，即一般为分布式的hbase。
注意gora-0.5对应Hbase0.94

4、准备好日志文件，用于本项目的分析


二、建立项目

1、建立一个java project

（1）创建以下几个目录

（2）构建build path，增加hadoop library,hbase library以及avro, gora相关的类包，详见后面的项目结构。

（3）将准备好的日志文件放到resource目录下

2、在conf目录下创建gora.properties，内容如下：

##gora.datastore.default is the default detastore implementation to use 
##if it is not passed to the DataStoreFactory#createDataStore() method.
gora.datastore.default=org.apache.gora.hbase.store.HBaseStore
#gora.datastore.default=org.apache.gora.cassandra.store.CassandraStore
#gora.datastore.default=org.apache.gora.solr.store.SolrStore

#gora.datastore.default=org.apache.gora.avro.store.AvroStore
#gora.avrostore.input.path=hdfs://localhost:9000/gora.avrostore.test.input
#gora.avrostore.output.path=hdfs://localhost:9000/gora.avrostore.test.output
#gora.avrostore.codec.type=JSON || BINARY

##whether to create schema automatically if not exists.
gora.datastore.autocreateschema=true

##Cassandra properties for gora-cassandra module using Cassandra
#gora.cassandrastore.servers=localhost:9160

##JDBC properties for gora-sql module using HSQL
gora.sqlstore.jdbc.driver=org.hsqldb.jdbcDriver
##HSQL jdbc connection as persistent in-process database
gora.sqlstore.jdbc.url=jdbc:hsqldb:file:./hsql-data

##HSQL jdbc connection as network server
#gora.sqlstore.jdbc.url=jdbc:hsqldb:hsql://localhost/goratest

##JDBC properties for gora-sql module using MySQL
#gora.sqlstore.jdbc.driver=com.mysql.jdbc.Driver
#gora.sqlstore.jdbc.url=jdbc:mysql://localhost:3306/goratest
#gora.sqlstore.jdbc.user=root
#gora.sqlstore.jdbc.password=

gora.solrstore.solr.url=http://localhost:8983/solr
gora.solrstore.solr.commitwithin=0
gora.solrstore.solr.batchsize=100
# set which Solrj server impl you wish to use 
# cloud, concurrent, http, loadbalance
gora.solrstore.solr.solrjserver=http

3、在avro目录下创建pageview.json，内容如下：

{
  "type": "record",
  "name": "Pageview", "default":null,
  "namespace": "org.apache.gora.tutorial.log.generated",
  "fields" : [
    {"name": "url", "type": ["null","string"], "default":null},
    {"name": "timestamp", "type": "long", "default":0},
    {"name": "ip", "type": ["null","string"], "default":null},
    {"name": "httpMethod", "type": ["null","string"], "default":null},
    {"name": "httpStatusCode", "type": "int", "default":0},
    {"name": "responseSize", "type": "int", "default":0},
    {"name": "referrer", "type": ["null","string"], "default":null},
    {"name": "userAgent", "type": ["null","string"], "default":null}
  ]
}

4、根据pageview.json生成java类
$ pwd
/Users/liaoliuqing/99_Project/1_myCodes/MyGoraDemo

$ gora goracompiler avro/pageview.json src/
Compiling: /Users/liaoliuqing/99_Project/1_myCodes/MyGoraDemo/avro/pageview.json
Compiled into: /Users/liaoliuqing/99_Project/1_myCodes/MyGoraDemo/src
Compiler executed SUCCESSFULL.
此命令在src目录下生成一个类：
org.apache.gora.tutorial.log.generated.Pageview.java
生成的内容请见最后面。

5、创建gora-hbase-mapping.xml，内容如下：

<?xml version="1.0" encoding="UTF-8"?>

<!--
  Gora Mapping file for HBase Backend
-->
<gora-otd>
  <table name="Pageview"> <!-- optional descriptors for tables -->
    <family name="common"/> <!-- This can also have params like compression, bloom filters -->
    <family name="http"/>
    <family name="misc"/>
  </table>

  <class name="org.apache.gora.tutorial.log.generated.Pageview" keyClass="java.lang.Long" table="AccessLog">
    <field name="url" family="common" qualifier="url"/>
    <field name="timestamp" family="common" qualifier="timestamp"/>
    <field name="ip" family="common" qualifier="ip" />
    <field name="httpMethod" family="http" qualifier="httpMethod"/>
    <field name="httpStatusCode" family="http" qualifier="httpStatusCode"/>
    <field name="responseSize" family="http" qualifier="responseSize"/>
    <field name="referrer" family="misc" qualifier="referrer"/>
    <field name="userAgent" family="misc" qualifier="userAgent"/>
  </class>

  <class name="org.apache.gora.tutorial.log.generated.MetricDatum" keyClass="java.lang.String" table="Metrics">
    <field name="metricDimension" family="common"  qualifier="metricDimension"/>
    <field name="timestamp" family="common" qualifier="ts"/>
    <field name="metric" family="common" qualifier="metric"/>
  </class>

</gora-otd>

三、代码编写及分析
1、编写以下代码

/**
 * 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.gora.tutorial.log;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.StringTokenizer;

import org.apache.avro.util.Utf8;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.gora.query.Query;
import org.apache.gora.query.Result;
import org.apache.gora.store.DataStore;
import org.apache.gora.store.DataStoreFactory;
import org.apache.gora.tutorial.log.generated.Pageview;
import org.apache.hadoop.conf.Configuration;

/**
 * LogManager is the tutorial class to illustrate the basic 
 * {@link DataStore} API usage. The LogManager class is used 
 * to parse the web server logs in combined log format, store the 
 * data in a Gora compatible data store, query and manipulate the stored data.  
 * 
 * <p>In the data model, keys are the line numbers in the log file, 
 * and the values are Pageview objects, generated from 
 * <code>gora-tutorial/src/main/avro/pageview.json</code>.
 * 
 * <p>See the tutorial.html file in docs or go to the 
 * <a href="http://gora.apache.org/docs/current/tutorial.html"> 
 * web site</a>for more information.</p>
 */
public class LogManager {

  private static final Logger log = LoggerFactory.getLogger(LogManager.class);
  
  private DataStore<Long, Pageview> dataStore; 
  
  private static final SimpleDateFormat dateFormat 
    = new SimpleDateFormat("dd/MMM/yyyy:HH:mm:ss Z");
  
  public LogManager() {
    try {
      init();
    } catch (IOException ex) {
      throw new RuntimeException(ex);
    }
  }
  
  private void init() throws IOException {
    //Data store objects are created from a factory. It is necessary to 
    //provide the key and value class. The datastore class is optional, 
    //and if not specified it will be read from the properties file
    dataStore = DataStoreFactory.getDataStore(Long.class, Pageview.class,
            new Configuration());
  }
  
  /**
   * Parses a log file and store the contents at the data store.
   * @param input the input file location
   */
  private void parse(String input) throws IOException, ParseException, Exception {
    log.info("Parsing file:" + input);
    BufferedReader reader = new BufferedReader(new FileReader(input));
    long lineCount = 0;
    try {
      String line = reader.readLine();
      do {
        Pageview pageview = parseLine(line);
        
        if(pageview != null) {
          //store the pageview 
          storePageview(lineCount++, pageview);
        }
        
        line = reader.readLine();
      } while(line != null);
      
    } finally {
      reader.close();  
    }
    log.info("finished parsing file. Total number of log lines:" + lineCount);
  }
  
  /** Parses a single log line in combined log format using StringTokenizers */
  private Pageview parseLine(String line) throws ParseException {
    StringTokenizer matcher = new StringTokenizer(line);
    //parse the log line
    String ip = matcher.nextToken();
    matcher.nextToken(); //discard
    matcher.nextToken();
    long timestamp = dateFormat.parse(matcher.nextToken("]").substring(2)).getTime();
    matcher.nextToken("\"");
    String request = matcher.nextToken("\"");
    String[] requestParts = request.split(" ");
    String httpMethod = requestParts[0];
    String url = requestParts[1];
    matcher.nextToken(" ");
    int httpStatusCode = Integer.parseInt(matcher.nextToken());
    int responseSize = Integer.parseInt(matcher.nextToken());
    matcher.nextToken("\"");
    String referrer = matcher.nextToken("\"");
    matcher.nextToken("\"");
    String userAgent = matcher.nextToken("\"");
    
    //construct and return pageview object
    Pageview pageview = new Pageview();
    pageview.setIp(new Utf8(ip));
    pageview.setTimestamp(timestamp);
    pageview.setHttpMethod(new Utf8(httpMethod));
    pageview.setUrl(new Utf8(url));
    pageview.setHttpStatusCode(httpStatusCode);
    pageview.setResponseSize(responseSize);
    pageview.setReferrer(new Utf8(referrer));
    pageview.setUserAgent(new Utf8(userAgent));
    
    return pageview;
  }
  
  /** Stores the pageview object with the given key */
  private void storePageview(long key, Pageview pageview) throws IOException, Exception {
	log.info("Storing Pageview in: " + dataStore.toString());
    dataStore.put(key, pageview);
  }
  
  /** Fetches a single pageview object and prints it*/
  private void get(long key) throws IOException, Exception {
    Pageview pageview = dataStore.get(key);
    printPageview(pageview);
  }
  
  /** Queries and prints a single pageview object */
  private void query(long key) throws IOException, Exception {
    //Queries are constructed from the data store
    Query<Long, Pageview> query = dataStore.newQuery();
    query.setKey(key);
    
    Result<Long, Pageview> result = query.execute(); //Actually executes the query.
    // alternatively dataStore.execute(query); can be used
    
    printResult(result);
  }
  
  /** Queries and prints pageview object that have keys between startKey and endKey*/
  private void query(long startKey, long endKey) throws IOException, Exception {
    Query<Long, Pageview> query = dataStore.newQuery();
    //set the properties of query
    query.setStartKey(startKey);
    query.setEndKey(endKey);
    
    Result<Long, Pageview> result = query.execute();
    
    printResult(result);
  }
  
  
  /**Deletes the pageview with the given line number */
  private void delete(long lineNum) throws Exception {
    dataStore.delete(lineNum);
    dataStore.flush(); //write changes may need to be flushed before
                       //they are committed 
    log.info("pageview with key:" + lineNum + " deleted");
  }
  
  /** This method illustrates delete by query call */
  private void deleteByQuery(long startKey, long endKey) throws IOException, Exception {
    //Constructs a query from the dataStore. The matching rows to this query will be deleted
    Query<Long, Pageview> query = dataStore.newQuery();
    //set the properties of query
    query.setStartKey(startKey);
    query.setEndKey(endKey);
    
    dataStore.deleteByQuery(query);
    log.info("pageviews with keys between " + startKey + " and " + endKey + " are deleted");
  }
  
  private void printResult(Result<Long, Pageview> result) throws IOException, Exception {
    
    while(result.next()) { //advances the Result object and breaks if at end
      long resultKey = result.getKey(); //obtain current key
      Pageview resultPageview = result.get(); //obtain current value object
      
      //print the results
      System.out.println(resultKey + ":");
      printPageview(resultPageview);
    }
    
    System.out.println("Number of pageviews from the query:" + result.getOffset());
  }
  
  /** Pretty prints the pageview object to stdout */
  private void printPageview(Pageview pageview) {
    if(pageview == null) {
      System.out.println("No result to show"); 
    } else {
      System.out.println(pageview.toString());
    }
  }
  
  private void close() throws IOException, Exception {
    //It is very important to close the datastore properly, otherwise
    //some data loss might occur.
    if(dataStore != null)
      dataStore.close();
  }
  
  private static final String USAGE = "LogManager -parse <input_log_file>\n" +
                                      "           -get <lineNum>\n" +
                                      "           -query <lineNum>\n" +
                                      "           -query <startLineNum> <endLineNum>\n" +
  		                                "           -delete <lineNum>\n" +
  		                                "           -deleteByQuery <startLineNum> <endLineNum>\n";
  
  public static void main(String[] args) throws Exception {
    if(args.length < 2) {
      System.err.println(USAGE);
      System.exit(1);
    }
    
    LogManager manager = new LogManager();
    
    if("-parse".equals(args[0])) {
      manager.parse(args[1]);
    } else if("-get".equals(args[0])) {
      manager.get(Long.parseLong(args[1]));
    } else if("-query".equals(args[0])) {
      if(args.length == 2) 
        manager.query(Long.parseLong(args[1]));
      else 
        manager.query(Long.parseLong(args[1]), Long.parseLong(args[2]));
    } else if("-delete".equals(args[0])) {
      manager.delete(Long.parseLong(args[1]));
    } else if("-deleteByQuery".equalsIgnoreCase(args[0])) {
      manager.deleteByQuery(Long.parseLong(args[1]), Long.parseLong(args[2]));
    } else {
      System.err.println(USAGE);
      System.exit(1);
    }
    
    manager.close();
  }
  
}

2、在eclipse中run as java application，输出如下：
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in [jar:file:/Users/liaoliuqing/99_Project/1_myCodes/MyGoraDemo/lib/slf4j-log4j12-1.6.6.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/Users/liaoliuqing/99_Project/99_userLibrary/log4j_2.0/log4j-slf4j-impl-2.0-rc2.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in [jar:file:/Users/liaoliuqing/1_BigData/1_Hadoop/0_Official/hadoop-1.2.1/lib/slf4j-log4j12-1.4.3.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
LogManager -parse <input_log_file>
           -get <lineNum>
           -query <lineNum>
           -query <startLineNum> <endLineNum>
           -delete <lineNum>
           -deleteByQuery <startLineNum> <endLineNum>

3、将项目打包并放至服务器中。

export --> runnable jar file

4、执行程序
在bin目录下执行以下命令

$ java -jar MyGoraDemo.jar  -parse resource/access.log

5、查看结果
$hbase shell

hbase(main):001:0> list
TABLE                                                                                                                                                                   
AccessLog                                                                                                                                                               
Jan2814_webpage                                                                                                                                                         
Jan2819_webpage                                                                                                                                                         
Jan2910_webpage                                                                                                                                                         
member                                                                                                                                                                  
5 row(s) in 1.2440 seconds

hbase(main):002:0> count 'AccessLog'
Current count: 1000, row: \x00\x00\x00\x00\x00\x00\x03\xE7                                                                                                              
Current count: 2000, row: \x00\x00\x00\x00\x00\x00\x07\xCF                                                                                                              
Current count: 3000, row: \x00\x00\x00\x00\x00\x00\x0B\xB7                                                                                                              
Current count: 4000, row: \x00\x00\x00\x00\x00\x00\x0F\x9F                                                                                                              
Current count: 5000, row: \x00\x00\x00\x00\x00\x00\x13\x87                                                                                                              
Current count: 6000, row: \x00\x00\x00\x00\x00\x00\x17o                                                                                                                 
Current count: 7000, row: \x00\x00\x00\x00\x00\x00\x1BW                                                                                                                 
Current count: 8000, row: \x00\x00\x00\x00\x00\x00\x1F?                                                                                                                 
Current count: 9000, row: \x00\x00\x00\x00\x00\x00#'                                                                                                                    
Current count: 10000, row: \x00\x00\x00\x00\x00\x00'\x0F                                                                                                                
10000 row(s) in 1.8960 seconds

四、程序分析

1、项目结构

附生成的java类：

 

/**
 * Autogenerated by Avro
 * 
 * DO NOT EDIT DIRECTLY
 */
package org.apache.gora.tutorial.log.generated;  
@SuppressWarnings("all")
public class Pageview extends org.apache.gora.persistency.impl.PersistentBase implements org.apache.avro.specific.SpecificRecord, org.apache.gora.persistency.Persistent {
  public static final org.apache.avro.Schema SCHEMA$ = new org.apache.avro.Schema.Parser().parse("{\"type\":\"record\",\"name\":\"Pageview\",\"namespace\":\"org.apache.gora.tutorial.log.generated\",\"fields\":[{\"name\":\"url\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"timestamp\",\"type\":\"long\",\"default\":0},{\"name\":\"ip\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"httpMethod\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"httpStatusCode\",\"type\":\"int\",\"default\":0},{\"name\":\"responseSize\",\"type\":\"int\",\"default\":0},{\"name\":\"referrer\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"userAgent\",\"type\":[\"null\",\"string\"],\"default\":null}],\"default\":null}");

  /** Enum containing all data bean's fields. */
  public static enum Field {
    URL(0, "url"),
    TIMESTAMP(1, "timestamp"),
    IP(2, "ip"),
    HTTP_METHOD(3, "httpMethod"),
    HTTP_STATUS_CODE(4, "httpStatusCode"),
    RESPONSE_SIZE(5, "responseSize"),
    REFERRER(6, "referrer"),
    USER_AGENT(7, "userAgent"),
    ;
    /**
     * Field's index.
     */
    private int index;

    /**
     * Field's name.
     */
    private String name;

    /**
     * Field's constructor
     * @param index field's index.
     * @param name field's name.
     */
    Field(int index, String name) {this.index=index;this.name=name;}

    /**
     * Gets field's index.
     * @return int field's index.
     */
    public int getIndex() {return index;}

    /**
     * Gets field's name.
     * @return String field's name.
     */
    public String getName() {return name;}

    /**
     * Gets field's attributes to string.
     * @return String field's attributes to string.
     */
    public String toString() {return name;}
  };

  public static final String[] _ALL_FIELDS = {
  "url",
  "timestamp",
  "ip",
  "httpMethod",
  "httpStatusCode",
  "responseSize",
  "referrer",
  "userAgent",
  };

  /**
   * Gets the total field count.
   * @return int field count
   */
  public int getFieldsCount() {
    return Pageview._ALL_FIELDS.length;
  }

  private java.lang.CharSequence url;
  private long timestamp;
  private java.lang.CharSequence ip;
  private java.lang.CharSequence httpMethod;
  private int httpStatusCode;
  private int responseSize;
  private java.lang.CharSequence referrer;
  private java.lang.CharSequence userAgent;
  public org.apache.avro.Schema getSchema() { return SCHEMA$; }
  // Used by DatumWriter.  Applications should not call. 
  public java.lang.Object get(int field$) {
    switch (field$) {
    case 0: return url;
    case 1: return timestamp;
    case 2: return ip;
    case 3: return httpMethod;
    case 4: return httpStatusCode;
    case 5: return responseSize;
    case 6: return referrer;
    case 7: return userAgent;
    default: throw new org.apache.avro.AvroRuntimeException("Bad index");
    }
  }
  
  // Used by DatumReader.  Applications should not call. 
  @SuppressWarnings(value="unchecked")
  public void put(int field$, java.lang.Object value) {
    switch (field$) {
    case 0: url = (java.lang.CharSequence)(value); break;
    case 1: timestamp = (java.lang.Long)(value); break;
    case 2: ip = (java.lang.CharSequence)(value); break;
    case 3: httpMethod = (java.lang.CharSequence)(value); break;
    case 4: httpStatusCode = (java.lang.Integer)(value); break;
    case 5: responseSize = (java.lang.Integer)(value); break;
    case 6: referrer = (java.lang.CharSequence)(value); break;
    case 7: userAgent = (java.lang.CharSequence)(value); break;
    default: throw new org.apache.avro.AvroRuntimeException("Bad index");
    }
  }

  /**
   * Gets the value of the 'url' field.
   */
  public java.lang.CharSequence getUrl() {
    return url;
  }

  /**
   * Sets the value of the 'url' field.
   * @param value the value to set.
   */
  public void setUrl(java.lang.CharSequence value) {
    this.url = value;
    setDirty(0);
  }
  
  /**
   * Checks the dirty status of the 'url' field. A field is dirty if it represents a change that has not yet been written to the database.
   * @param value the value to set.
   */
  public boolean isUrlDirty(java.lang.CharSequence value) {
    return isDirty(0);
  }

  /**
   * Gets the value of the 'timestamp' field.
   */
  public java.lang.Long getTimestamp() {
    return timestamp;
  }

  /**
   * Sets the value of the 'timestamp' field.
   * @param value the value to set.
   */
  public void setTimestamp(java.lang.Long value) {
    this.timestamp = value;
    setDirty(1);
  }
  
  /**
   * Checks the dirty status of the 'timestamp' field. A field is dirty if it represents a change that has not yet been written to the database.
   * @param value the value to set.
   */
  public boolean isTimestampDirty(java.lang.Long value) {
    return isDirty(1);
  }

  /**
   * Gets the value of the 'ip' field.
   */
  public java.lang.CharSequence getIp() {
    return ip;
  }

  /**
   * Sets the value of the 'ip' field.
   * @param value the value to set.
   */
  public void setIp(java.lang.CharSequence value) {
    this.ip = value;
    setDirty(2);
  }
  
  /**
   * Checks the dirty status of the 'ip' field. A field is dirty if it represents a change that has not yet been written to the database.
   * @param value the value to set.
   */
  public boolean isIpDirty(java.lang.CharSequence value) {
    return isDirty(2);
  }

  /**
   * Gets the value of the 'httpMethod' field.
   */
  public java.lang.CharSequence getHttpMethod() {
    return httpMethod;
  }

  /**
   * Sets the value of the 'httpMethod' field.
   * @param value the value to set.
   */
  public void setHttpMethod(java.lang.CharSequence value) {
    this.httpMethod = value;
    setDirty(3);
  }
  
  /**
   * Checks the dirty status of the 'httpMethod' field. A field is dirty if it represents a change that has not yet been written to the database.
   * @param value the value to set.
   */
  public boolean isHttpMethodDirty(java.lang.CharSequence value) {
    return isDirty(3);
  }

  /**
   * Gets the value of the 'httpStatusCode' field.
   */
  public java.lang.Integer getHttpStatusCode() {
    return httpStatusCode;
  }

  /**
   * Sets the value of the 'httpStatusCode' field.
   * @param value the value to set.
   */
  public void setHttpStatusCode(java.lang.Integer value) {
    this.httpStatusCode = value;
    setDirty(4);
  }
  
  /**
   * Checks the dirty status of the 'httpStatusCode' field. A field is dirty if it represents a change that has not yet been written to the database.
   * @param value the value to set.
   */
  public boolean isHttpStatusCodeDirty(java.lang.Integer value) {
    return isDirty(4);
  }

  /**
   * Gets the value of the 'responseSize' field.
   */
  public java.lang.Integer getResponseSize() {
    return responseSize;
  }

  /**
   * Sets the value of the 'responseSize' field.
   * @param value the value to set.
   */
  public void setResponseSize(java.lang.Integer value) {
    this.responseSize = value;
    setDirty(5);
  }
  
  /**
   * Checks the dirty status of the 'responseSize' field. A field is dirty if it represents a change that has not yet been written to the database.
   * @param value the value to set.
   */
  public boolean isResponseSizeDirty(java.lang.Integer value) {
    return isDirty(5);
  }

  /**
   * Gets the value of the 'referrer' field.
   */
  public java.lang.CharSequence getReferrer() {
    return referrer;
  }

  /**
   * Sets the value of the 'referrer' field.
   * @param value the value to set.
   */
  public void setReferrer(java.lang.CharSequence value) {
    this.referrer = value;
    setDirty(6);
  }
  
  /**
   * Checks the dirty status of the 'referrer' field. A field is dirty if it represents a change that has not yet been written to the database.
   * @param value the value to set.
   */
  public boolean isReferrerDirty(java.lang.CharSequence value) {
    return isDirty(6);
  }

  /**
   * Gets the value of the 'userAgent' field.
   */
  public java.lang.CharSequence getUserAgent() {
    return userAgent;
  }

  /**
   * Sets the value of the 'userAgent' field.
   * @param value the value to set.
   */
  public void setUserAgent(java.lang.CharSequence value) {
    this.userAgent = value;
    setDirty(7);
  }
  
  /**
   * Checks the dirty status of the 'userAgent' field. A field is dirty if it represents a change that has not yet been written to the database.
   * @param value the value to set.
   */
  public boolean isUserAgentDirty(java.lang.CharSequence value) {
    return isDirty(7);
  }

  /** Creates a new Pageview RecordBuilder */
  public static org.apache.gora.tutorial.log.generated.Pageview.Builder newBuilder() {
    return new org.apache.gora.tutorial.log.generated.Pageview.Builder();
  }
  
  /** Creates a new Pageview RecordBuilder by copying an existing Builder */
  public static org.apache.gora.tutorial.log.generated.Pageview.Builder newBuilder(org.apache.gora.tutorial.log.generated.Pageview.Builder other) {
    return new org.apache.gora.tutorial.log.generated.Pageview.Builder(other);
  }
  
  /** Creates a new Pageview RecordBuilder by copying an existing Pageview instance */
  public static org.apache.gora.tutorial.log.generated.Pageview.Builder newBuilder(org.apache.gora.tutorial.log.generated.Pageview other) {
    return new org.apache.gora.tutorial.log.generated.Pageview.Builder(other);
  }
  
  private static java.nio.ByteBuffer deepCopyToReadOnlyBuffer(
      java.nio.ByteBuffer input) {
    java.nio.ByteBuffer copy = java.nio.ByteBuffer.allocate(input.capacity());
    int position = input.position();
    input.reset();
    int mark = input.position();
    int limit = input.limit();
    input.rewind();
    input.limit(input.capacity());
    copy.put(input);
    input.rewind();
    copy.rewind();
    input.position(mark);
    input.mark();
    copy.position(mark);
    copy.mark();
    input.position(position);
    copy.position(position);
    input.limit(limit);
    copy.limit(limit);
    return copy.asReadOnlyBuffer();
  }
  
  /**
   * RecordBuilder for Pageview instances.
   */
  public static class Builder extends org.apache.avro.specific.SpecificRecordBuilderBase<Pageview>
    implements org.apache.avro.data.RecordBuilder<Pageview> {

    private java.lang.CharSequence url;
    private long timestamp;
    private java.lang.CharSequence ip;
    private java.lang.CharSequence httpMethod;
    private int httpStatusCode;
    private int responseSize;
    private java.lang.CharSequence referrer;
    private java.lang.CharSequence userAgent;

    /** Creates a new Builder */
    private Builder() {
      super(org.apache.gora.tutorial.log.generated.Pageview.SCHEMA$);
    }
    
    /** Creates a Builder by copying an existing Builder */
    private Builder(org.apache.gora.tutorial.log.generated.Pageview.Builder other) {
      super(other);
    }
    
    /** Creates a Builder by copying an existing Pageview instance */
    private Builder(org.apache.gora.tutorial.log.generated.Pageview other) {
            super(org.apache.gora.tutorial.log.generated.Pageview.SCHEMA$);
      if (isValidValue(fields()[0], other.url)) {
        this.url = (java.lang.CharSequence) data().deepCopy(fields()[0].schema(), other.url);
        fieldSetFlags()[0] = true;
      }
      if (isValidValue(fields()[1], other.timestamp)) {
        this.timestamp = (java.lang.Long) data().deepCopy(fields()[1].schema(), other.timestamp);
        fieldSetFlags()[1] = true;
      }
      if (isValidValue(fields()[2], other.ip)) {
        this.ip = (java.lang.CharSequence) data().deepCopy(fields()[2].schema(), other.ip);
        fieldSetFlags()[2] = true;
      }
      if (isValidValue(fields()[3], other.httpMethod)) {
        this.httpMethod = (java.lang.CharSequence) data().deepCopy(fields()[3].schema(), other.httpMethod);
        fieldSetFlags()[3] = true;
      }
      if (isValidValue(fields()[4], other.httpStatusCode)) {
        this.httpStatusCode = (java.lang.Integer) data().deepCopy(fields()[4].schema(), other.httpStatusCode);
        fieldSetFlags()[4] = true;
      }
      if (isValidValue(fields()[5], other.responseSize)) {
        this.responseSize = (java.lang.Integer) data().deepCopy(fields()[5].schema(), other.responseSize);
        fieldSetFlags()[5] = true;
      }
      if (isValidValue(fields()[6], other.referrer)) {
        this.referrer = (java.lang.CharSequence) data().deepCopy(fields()[6].schema(), other.referrer);
        fieldSetFlags()[6] = true;
      }
      if (isValidValue(fields()[7], other.userAgent)) {
        this.userAgent = (java.lang.CharSequence) data().deepCopy(fields()[7].schema(), other.userAgent);
        fieldSetFlags()[7] = true;
      }
    }

    /** Gets the value of the 'url' field */
    public java.lang.CharSequence getUrl() {
      return url;
    }
    
    /** Sets the value of the 'url' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder setUrl(java.lang.CharSequence value) {
      validate(fields()[0], value);
      this.url = value;
      fieldSetFlags()[0] = true;
      return this; 
    }
    
    /** Checks whether the 'url' field has been set */
    public boolean hasUrl() {
      return fieldSetFlags()[0];
    }
    
    /** Clears the value of the 'url' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder clearUrl() {
      url = null;
      fieldSetFlags()[0] = false;
      return this;
    }
    
    /** Gets the value of the 'timestamp' field */
    public java.lang.Long getTimestamp() {
      return timestamp;
    }
    
    /** Sets the value of the 'timestamp' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder setTimestamp(long value) {
      validate(fields()[1], value);
      this.timestamp = value;
      fieldSetFlags()[1] = true;
      return this; 
    }
    
    /** Checks whether the 'timestamp' field has been set */
    public boolean hasTimestamp() {
      return fieldSetFlags()[1];
    }
    
    /** Clears the value of the 'timestamp' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder clearTimestamp() {
      fieldSetFlags()[1] = false;
      return this;
    }
    
    /** Gets the value of the 'ip' field */
    public java.lang.CharSequence getIp() {
      return ip;
    }
    
    /** Sets the value of the 'ip' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder setIp(java.lang.CharSequence value) {
      validate(fields()[2], value);
      this.ip = value;
      fieldSetFlags()[2] = true;
      return this; 
    }
    
    /** Checks whether the 'ip' field has been set */
    public boolean hasIp() {
      return fieldSetFlags()[2];
    }
    
    /** Clears the value of the 'ip' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder clearIp() {
      ip = null;
      fieldSetFlags()[2] = false;
      return this;
    }
    
    /** Gets the value of the 'httpMethod' field */
    public java.lang.CharSequence getHttpMethod() {
      return httpMethod;
    }
    
    /** Sets the value of the 'httpMethod' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder setHttpMethod(java.lang.CharSequence value) {
      validate(fields()[3], value);
      this.httpMethod = value;
      fieldSetFlags()[3] = true;
      return this; 
    }
    
    /** Checks whether the 'httpMethod' field has been set */
    public boolean hasHttpMethod() {
      return fieldSetFlags()[3];
    }
    
    /** Clears the value of the 'httpMethod' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder clearHttpMethod() {
      httpMethod = null;
      fieldSetFlags()[3] = false;
      return this;
    }
    
    /** Gets the value of the 'httpStatusCode' field */
    public java.lang.Integer getHttpStatusCode() {
      return httpStatusCode;
    }
    
    /** Sets the value of the 'httpStatusCode' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder setHttpStatusCode(int value) {
      validate(fields()[4], value);
      this.httpStatusCode = value;
      fieldSetFlags()[4] = true;
      return this; 
    }
    
    /** Checks whether the 'httpStatusCode' field has been set */
    public boolean hasHttpStatusCode() {
      return fieldSetFlags()[4];
    }
    
    /** Clears the value of the 'httpStatusCode' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder clearHttpStatusCode() {
      fieldSetFlags()[4] = false;
      return this;
    }
    
    /** Gets the value of the 'responseSize' field */
    public java.lang.Integer getResponseSize() {
      return responseSize;
    }
    
    /** Sets the value of the 'responseSize' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder setResponseSize(int value) {
      validate(fields()[5], value);
      this.responseSize = value;
      fieldSetFlags()[5] = true;
      return this; 
    }
    
    /** Checks whether the 'responseSize' field has been set */
    public boolean hasResponseSize() {
      return fieldSetFlags()[5];
    }
    
    /** Clears the value of the 'responseSize' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder clearResponseSize() {
      fieldSetFlags()[5] = false;
      return this;
    }
    
    /** Gets the value of the 'referrer' field */
    public java.lang.CharSequence getReferrer() {
      return referrer;
    }
    
    /** Sets the value of the 'referrer' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder setReferrer(java.lang.CharSequence value) {
      validate(fields()[6], value);
      this.referrer = value;
      fieldSetFlags()[6] = true;
      return this; 
    }
    
    /** Checks whether the 'referrer' field has been set */
    public boolean hasReferrer() {
      return fieldSetFlags()[6];
    }
    
    /** Clears the value of the 'referrer' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder clearReferrer() {
      referrer = null;
      fieldSetFlags()[6] = false;
      return this;
    }
    
    /** Gets the value of the 'userAgent' field */
    public java.lang.CharSequence getUserAgent() {
      return userAgent;
    }
    
    /** Sets the value of the 'userAgent' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder setUserAgent(java.lang.CharSequence value) {
      validate(fields()[7], value);
      this.userAgent = value;
      fieldSetFlags()[7] = true;
      return this; 
    }
    
    /** Checks whether the 'userAgent' field has been set */
    public boolean hasUserAgent() {
      return fieldSetFlags()[7];
    }
    
    /** Clears the value of the 'userAgent' field */
    public org.apache.gora.tutorial.log.generated.Pageview.Builder clearUserAgent() {
      userAgent = null;
      fieldSetFlags()[7] = false;
      return this;
    }
    
    @Override
    public Pageview build() {
      try {
        Pageview record = new Pageview();
        record.url = fieldSetFlags()[0] ? this.url : (java.lang.CharSequence) defaultValue(fields()[0]);
        record.timestamp = fieldSetFlags()[1] ? this.timestamp : (java.lang.Long) defaultValue(fields()[1]);
        record.ip = fieldSetFlags()[2] ? this.ip : (java.lang.CharSequence) defaultValue(fields()[2]);
        record.httpMethod = fieldSetFlags()[3] ? this.httpMethod : (java.lang.CharSequence) defaultValue(fields()[3]);
        record.httpStatusCode = fieldSetFlags()[4] ? this.httpStatusCode : (java.lang.Integer) defaultValue(fields()[4]);
        record.responseSize = fieldSetFlags()[5] ? this.responseSize : (java.lang.Integer) defaultValue(fields()[5]);
        record.referrer = fieldSetFlags()[6] ? this.referrer : (java.lang.CharSequence) defaultValue(fields()[6]);
        record.userAgent = fieldSetFlags()[7] ? this.userAgent : (java.lang.CharSequence) defaultValue(fields()[7]);
        return record;
      } catch (Exception e) {
        throw new org.apache.avro.AvroRuntimeException(e);
      }
    }
  }
  
  public Pageview.Tombstone getTombstone(){
  	return TOMBSTONE;
  }

  public Pageview newInstance(){
    return newBuilder().build();
  }

  private static final Tombstone TOMBSTONE = new Tombstone();
  
  public static final class Tombstone extends Pageview implements org.apache.gora.persistency.Tombstone {
  
      private Tombstone() { }
  
	  		  /**
	   * Gets the value of the 'url' field.
		   */
	  public java.lang.CharSequence getUrl() {
	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
	  }
	
	  /**
	   * Sets the value of the 'url' field.
		   * @param value the value to set.
	   */
	  public void setUrl(java.lang.CharSequence value) {
	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
	  }
	  
	  /**
	   * Checks the dirty status of the 'url' field. A field is dirty if it represents a change that has not yet been written to the database.
		   * @param value the value to set.
	   */
	  public boolean isUrlDirty(java.lang.CharSequence value) {
	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
	  }
	
				  /**
	   * Gets the value of the 'timestamp' field.
		   */
	  public java.lang.Long getTimestamp() {
	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
	  }
	
	  /**
	   * Sets the value of the 'timestamp' field.
		   * @param value the value to set.
	   */
	  public void setTimestamp(java.lang.Long value) {
	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
	  }
	  
	  /**
	   * Checks the dirty status of the 'timestamp' field. A field is dirty if it represents a change that has not yet been written to the database.
		   * @param value the value to set.
	   */
	  public boolean isTimestampDirty(java.lang.Long value) {
	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
	  }
	
				  /**
	   * Gets the value of the 'ip' field.
		   */
	  public java.lang.CharSequence getIp() {
	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
	  }
	
	  /**
	   * Sets the value of the 'ip' field.
		   * @param value the value to set.
	   */
	  public void setIp(java.lang.CharSequence value) {
	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
	  }
	  
	  /**
	   * Checks the dirty status of the 'ip' field. A field is dirty if it represents a change that has not yet been written to the database.
		   * @param value the value to set.
	   */
	  public boolean isIpDirty(java.lang.CharSequence value) {
	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
	  }
	
				  /**
	   * Gets the value of the 'httpMethod' field.
		   */
	  public java.lang.CharSequence getHttpMethod() {
	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
	  }
	
	  /**
	   * Sets the value of the 'httpMethod' field.
		   * @param value the value to set.
	   */
	  public void setHttpMethod(java.lang.CharSequence value) {
	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
	  }
	  
	  /**
	   * Checks the dirty status of the 'httpMethod' field. A field is dirty if it represents a change that has not yet been written to the database.
		   * @param value the value to set.
	   */
	  public boolean isHttpMethodDirty(java.lang.CharSequence value) {
	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
	  }
	
				  /**
	   * Gets the value of the 'httpStatusCode' field.
		   */
	  public java.lang.Integer getHttpStatusCode() {
	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
	  }
	
	  /**
	   * Sets the value of the 'httpStatusCode' field.
		   * @param value the value to set.
	   */
	  public void setHttpStatusCode(java.lang.Integer value) {
	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
	  }
	  
	  /**
	   * Checks the dirty status of the 'httpStatusCode' field. A field is dirty if it represents a change that has not yet been written to the database.
		   * @param value the value to set.
	   */
	  public boolean isHttpStatusCodeDirty(java.lang.Integer value) {
	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
	  }
	
				  /**
	   * Gets the value of the 'responseSize' field.
		   */
	  public java.lang.Integer getResponseSize() {
	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
	  }
	
	  /**
	   * Sets the value of the 'responseSize' field.
		   * @param value the value to set.
	   */
	  public void setResponseSize(java.lang.Integer value) {
	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
	  }
	  
	  /**
	   * Checks the dirty status of the 'responseSize' field. A field is dirty if it represents a change that has not yet been written to the database.
		   * @param value the value to set.
	   */
	  public boolean isResponseSizeDirty(java.lang.Integer value) {
	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
	  }
	
				  /**
	   * Gets the value of the 'referrer' field.
		   */
	  public java.lang.CharSequence getReferrer() {
	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
	  }
	
	  /**
	   * Sets the value of the 'referrer' field.
		   * @param value the value to set.
	   */
	  public void setReferrer(java.lang.CharSequence value) {
	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
	  }
	  
	  /**
	   * Checks the dirty status of the 'referrer' field. A field is dirty if it represents a change that has not yet been written to the database.
		   * @param value the value to set.
	   */
	  public boolean isReferrerDirty(java.lang.CharSequence value) {
	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
	  }
	
				  /**
	   * Gets the value of the 'userAgent' field.
		   */
	  public java.lang.CharSequence getUserAgent() {
	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
	  }
	
	  /**
	   * Sets the value of the 'userAgent' field.
		   * @param value the value to set.
	   */
	  public void setUserAgent(java.lang.CharSequence value) {
	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
	  }
	  
	  /**
	   * Checks the dirty status of the 'userAgent' field. A field is dirty if it represents a change that has not yet been written to the database.
		   * @param value the value to set.
	   */
	  public boolean isUserAgentDirty(java.lang.CharSequence value) {
	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
	  }
	
		  
  }
  
}