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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.camel.component.ibatis;
import java.io.IOException;
import com.ibatis.sqlmap.client.SqlMapClient;
import org.apache.camel.Processor;
import org.apache.camel.Producer;
import org.apache.camel.component.ibatis.strategy.DefaultIBatisProcessingStategy;
import org.apache.camel.component.ibatis.strategy.IBatisProcessingStrategy;
import org.apache.camel.component.ibatis.strategy.TransactionIsolationLevel;
import org.apache.camel.impl.DefaultPollingEndpoint;
import org.apache.camel.spi.Metadata;
import org.apache.camel.spi.UriEndpoint;
import org.apache.camel.spi.UriParam;
import org.apache.camel.spi.UriPath;
import org.apache.camel.util.ObjectHelper;
/**
* Performs a query, poll, insert, update or delete in a relational database using Apache iBATIS.
*/
@UriEndpoint(firstVersion = "1.2.0", scheme = "ibatis", title = "iBatis", syntax = "ibatis:statement", consumerClass = IBatisConsumer.class, label = "database,sql")
public class IBatisEndpoint extends DefaultPollingEndpoint {
@UriPath @Metadata(required = "true")
private String statement;
@UriParam(defaultValue = "true")
private boolean useTransactions = true;
@UriParam(label = "producer")
private StatementType statementType;
@UriParam(label = "consumer", defaultValue = "0")
private int maxMessagesPerPoll;
@UriParam(label = "consumer")
private IBatisProcessingStrategy strategy;
@UriParam(defaultValue = "TRANSACTION_REPEATABLE_READ",
enums = "TRANSACTION_NONE,TRANSACTION_READ_UNCOMMITTED,TRANSACTION_READ_COMMITTED,TRANSACTION_REPEATABLE_READ,TRANSACTION_SERIALIZABLE")
private String isolation;
@UriParam(label = "consumer", optionalPrefix = "consumer.")
private String onConsume;
@UriParam(label = "consumer", optionalPrefix = "consumer.", defaultValue = "true")
private boolean useIterator = true;
@UriParam(label = "consumer", optionalPrefix = "consumer.")
private boolean routeEmptyResultSet;
public IBatisEndpoint() {
}
public IBatisEndpoint(String uri, IBatisComponent component, String statement) throws Exception {
super(uri, component);
setUseTransactions(component.isUseTransactions());
setStatement(statement);
}
@Override
public IBatisComponent getComponent() {
return (IBatisComponent) super.getComponent();
}
public boolean isSingleton() {
return true;
}
public Producer createProducer() throws Exception {
ObjectHelper.notNull(statementType, "statementType", this);
return new IBatisProducer(this);
}
@Override
public IBatisConsumer createConsumer(Processor processor) throws Exception {
IBatisConsumer consumer = new IBatisConsumer(this, processor);
consumer.setMaxMessagesPerPoll(getMaxMessagesPerPoll());
consumer.setOnConsume(getOnConsume());
consumer.setUseIterator(isUseIterator());
consumer.setRouteEmptyResultSet(isRouteEmptyResultSet());
configureConsumer(consumer);
return consumer;
}
public SqlMapClient getSqlMapClient() throws IOException {
return getComponent().getSqlMapClient();
}
public IBatisProcessingStrategy getProcessingStrategy() throws Exception {
return strategy;
}
/**
* Allows to plugin a custom {@link IBatisProcessingStrategy} to use by the consumer.
*/
public void setStrategy(IBatisProcessingStrategy strategy) {
this.strategy = strategy;
}
public String getStatement() {
return statement;
}
/**
* The statement name in the iBatis XML mapping file which maps to the query, insert, update or delete operation you wish to evaluate.
*/
public void setStatement(String statement) {
this.statement = statement;
}
public boolean isUseTransactions() {
return useTransactions;
}
/**
* Whether to use transactions.
*
* This option is by default true.
*/
public void setUseTransactions(boolean useTransactions) {
this.useTransactions = useTransactions;
}
public StatementType getStatementType() {
return statementType;
}
/**
* Mandatory to specify for the producer to control which kind of operation to invoke.
*/
public void setStatementType(StatementType statementType) {
this.statementType = statementType;
}
public int getMaxMessagesPerPoll() {
return maxMessagesPerPoll;
}
/**
* This option is intended to split results returned by the database pool into the batches and deliver them in multiple exchanges.
* This integer defines the maximum messages to deliver in single exchange. By default, no maximum is set.
* Can be used to set a limit of e.g. 1000 to avoid when starting up the server that there are thousands of files.
* Set a value of 0 or negative to disable it.
*/
public void setMaxMessagesPerPoll(int maxMessagesPerPoll) {
this.maxMessagesPerPoll = maxMessagesPerPoll;
}
public String getIsolation() throws Exception {
return isolation;
}
/**
* Transaction isolation level
*/
public void setIsolation(String isolation) throws Exception {
this.isolation = isolation;
}
public String getOnConsume() {
return onConsume;
}
/**
* Statement to run after data has been processed in the route
*/
public void setOnConsume(String onConsume) {
this.onConsume = onConsume;
}
public boolean isUseIterator() {
return useIterator;
}
/**
* Process resultset individually or as a list
*/
public void setUseIterator(boolean useIterator) {
this.useIterator = useIterator;
}
public boolean isRouteEmptyResultSet() {
return routeEmptyResultSet;
}
/**
* Whether allow empty resultset to be routed to the next hop
*/
public void setRouteEmptyResultSet(boolean routeEmptyResultSet) {
this.routeEmptyResultSet = routeEmptyResultSet;
}
@Override
protected void doStart() throws Exception {
super.doStart();
if (strategy == null) {
strategy = new DefaultIBatisProcessingStategy();
}
if (isolation != null) {
strategy.setIsolation(TransactionIsolationLevel.intValueOf(isolation));
}
}
}
