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BATCH-1033: Created PrefixMatchingCompositeLineMapper and reorganized PrefixMatchingCompositeLineTokenizer so that its lookup functionality could be reused. Also updated the multiRecordType sample by removing PrefixMatchingCompositeFieldSetMapper in favor of the new class.

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This commit is contained in:
dhgarrette
2009-01-28 05:00:06 +00:00
parent 88cd809b94
commit 18f7870ba2
7 changed files with 340 additions and 138 deletions
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50
spring-batch-samples/src/main/resources/jobs/iosample/multiRecordType.xml
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@@ -21,58 +21,48 @@
<bean id="itemReader" class="org.springframework.batch.item.file.FlatFileItemReader">
<property name="resource" value="data/iosample/input/multiRecordType.txt" />
<property name="lineMapper">
<bean class="org.springframework.batch.item.file.mapping.DefaultLineMapper">
<property name="lineTokenizer" ref="compositeLineTokenizer" />
<property name="fieldSetMapper" ref="compositeFieldSetMapper" />
</bean>
</property>
<property name="lineMapper" ref="prefixMatchingLineMapper"/>
</bean>
<bean id="compositeLineTokenizer"
class="org.springframework.batch.item.file.transform.PrefixMatchingCompositeLineTokenizer">
<bean id="prefixMatchingLineMapper"
class="org.springframework.batch.item.file.mapping.PrefixMatchingCompositeLineMapper">
<property name="tokenizers">
<map>
<entry key="TRAD" value-ref="tradeLineTokenizer" />
<entry key="CUST" value-ref="customerLineTokenizer" />
</map>
</property>
<property name="fieldSetMappers">
<map>
<entry key="TRAD" value-ref="tradeFieldSetMapper" />
<entry key="CUST" value-ref="customerFieldSetMapper" />
</map>
</property>
</bean>
<bean id="tradeLineTokenizer"
class="org.springframework.batch.item.file.transform.FixedLengthTokenizer">
<property name="names" value="isin,quantity,price,customer,prefix" />
<property name="columns" value="5-16,17-19,20-25,26-34,1-4" />
<property name="names" value="isin,quantity,price,customer" />
<property name="columns" value="5-16,17-19,20-25,26-34" />
</bean>
<bean id="customerLineTokenizer"
class="org.springframework.batch.item.file.transform.FixedLengthTokenizer">
<property name="names" value="id,name,credit,prefix" />
<property name="columns" value="5-9,10-18,19-26,1-4" />
</bean>
<bean id="compositeFieldSetMapper"
class="org.springframework.batch.sample.iosample.internal.PrefixMatchingCompositeFieldSetMapper">
<property name="mappers">
<map>
<entry key="TRAD" value-ref="tradeFieldSetMapper" />
<entry key="CUST" value-ref="customerFieldSetMapper" />
</map>
</property>
<property name="names" value="id,name,credit" />
<property name="columns" value="5-9,10-18,19-26" />
</bean>
<bean id="tradeFieldSetMapper"
class="org.springframework.batch.sample.domain.trade.internal.TradeFieldSetMapper" />
class="org.springframework.batch.sample.domain.trade.internal.TradeFieldSetMapper" />
<bean id="customerFieldSetMapper"
class="org.springframework.batch.sample.domain.trade.internal.CustomerCreditFieldSetMapper" />
<bean id="itemWriter" class="org.springframework.batch.item.file.FlatFileItemWriter">
<property name="resource"
value="file:target/test-outputs/multiRecordTypeOutput.txt" />
<property name="resource" value="file:target/test-outputs/multiRecordTypeOutput.txt" />
<property name="lineAggregator">
<bean
class="org.springframework.batch.sample.iosample.internal.DelegatingTradeLineAggregator">
<bean class="org.springframework.batch.sample.iosample.internal.DelegatingTradeLineAggregator">
<property name="tradeLineAggregator" ref="tradeLineAggregator" />
<property name="customerLineAggregator" ref="customerLineAggregator" />
</bean>
@@ -82,8 +72,7 @@
<bean id="tradeLineAggregator"
class="org.springframework.batch.item.file.transform.FormatterLineAggregator">
<property name="fieldExtractor">
<bean
class="org.springframework.batch.item.file.transform.BeanWrapperFieldExtractor">
<bean class="org.springframework.batch.item.file.transform.BeanWrapperFieldExtractor">
<property name="names" value="isin,quantity,price,customer" />
</bean>
</property>
@@ -93,8 +82,7 @@
<bean id="customerLineAggregator"
class="org.springframework.batch.item.file.transform.FormatterLineAggregator">
<property name="fieldExtractor">
<bean
class="org.springframework.batch.item.file.transform.BeanWrapperFieldExtractor">
<bean class="org.springframework.batch.item.file.transform.BeanWrapperFieldExtractor">
<property name="names" value="id,name,credit" />
</bean>
</property>

44
spring-batch-samples/src/test/java/org/springframework/batch/sample/iosample/internal/PrefixMatchingCompositeFieldSetMapper.java
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@@ -1,44 +0,0 @@
/*
* Copyright 2006-2007 the original author or authors.
*
* 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.springframework.batch.sample.iosample.internal;
import java.util.HashMap;
import java.util.Map;
import org.springframework.batch.item.file.mapping.FieldSetMapper;
import org.springframework.batch.item.file.transform.FieldSet;
/**
* This class is used to delegate to a {@link FieldSetMapper} based on one field
* in the {@link FieldSet}.
*
* @author Dan Garrette
* @since 2.0
*/
public class PrefixMatchingCompositeFieldSetMapper<T> implements FieldSetMapper<T> {
private Map<String, FieldSetMapper<? extends T>> mappers = new HashMap<String, FieldSetMapper<? extends T>>();
public T mapFieldSet(FieldSet fieldSet) {
String prefix = fieldSet.readString("prefix");
return this.mappers.get(prefix).mapFieldSet(fieldSet);
}
public void setMappers(Map<String, FieldSetMapper<? extends T>> mappers) {
this.mappers = mappers;
}
}