osgi5——camel整合activiti

activiti是工作流，它可以实现一些请假或者面试等业务上的工作流，也可以实现ESB上一些服务编排，以便适应千变万化的互联网。

下面了解下他怎么和camel实现服务编排

blueprint.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
xmlns:camel-cxf="http://camel.apache.org/schema/blueprint/cxf"
xmlns:cxfcore="http://cxf.apache.org/blueprint/core"
xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd http://aries.apache.org/xmlns/jpa/v1.1.0 http://aries.apache.org/schemas/jpa/jpa_110.xsd http://aries.apache.org/xmlns/transactions/v1.0.0 http://aries.apache.org/schemas/transaction/transactionv10.xsd http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.1.0 http://aries.apache.org/schemas/blueprint-cm/blueprint-cm-1.1.0.xsd http://camel.apache.org/schema/blueprint/cxf http://camel.apache.org/schema/blueprint/cxf/camel-cxf.xsd http://cxf.apache.org/blueprint/core http://cxf.apache.org/schemas/blueprint/core.xsd" >

<service interface="org.activiti.camel.ContextProvider">
<bean class="org.activiti.camel.SimpleContextProvider">
<argument value="checkactiviti"/>
<argument ref="camelContext1"/>
</bean>
</service>

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="org.postgresql.Driver" />
<property name="url" value="jdbc:postgresql://192.168.1.100:5432/workflow1" />
<property name="username" value="xxx" />
<property name="password" value="xxxx" />
</bean>

<bean id="configurationFactory" class="org.activiti.osgi.blueprint.ConfigurationFactory">
<property name="dataSource" ref="dataSource"/>
<property name="databaseSchemaUpdate" value="true"/>
</bean>

<bean id="configuration" factory-ref="configurationFactory"  factory-method="getConfiguration"/>

<bean id="processEngineFactory" class="org.activiti.osgi.blueprint.ProcessEngineFactory" init-method="init" destroy-method="destroy">
<property name="processEngineConfiguration" ref="configuration"/>
<property name="bundle" ref="blueprintBundle"/>
<property name="blueprintELResolver" ref="blueprintELResolver"/>
</bean>

<bean id="processEngine" factory-ref="processEngineFactory" factory-method="getObject"/>
<bean id="identityService" factory-ref="processEngine" factory-method="getIdentityService"/>
<bean id="runtimeService" factory-ref="processEngine" factory-method="getRuntimeService"/>
<bean id="repositoryService" factory-ref="processEngine" factory-method="getRepositoryService"/>
<bean id="blueprintELResolver" class="org.activiti.osgi.blueprint.BlueprintELResolver"/>

<service ref="processEngine"  interface="org.activiti.engine.ProcessEngine"/>
<service ref="identityService" interface="org.activiti.engine.IdentityService"/>
<service ref="runtimeService" interface="org.activiti.engine.RuntimeService"/>
<service ref="repositoryService" interface="org.activiti.engine.RepositoryService"/>

<bean id="camel_bean" class="com.lala.activiti.CamelProcessor">
<property name="processEngine" ref="processEngine"/>
</bean>

<bean id="bean1" class="com.lala.bean.Bean1">
<property name="processEngine" ref="processEngine"/>
<property name="camelContext1" ref="camelContext1"/>

</bean>
<bean id="bean2" class="com.lala.bean.Bean2">
<property name="processEngine" ref="processEngine"/>

<property name="camelContext1" ref="camelContext1"/>
</bean>
<bean id="bean3" class="com.lala.bean.Bean3"></bean>

<camelContext id="camelContext1" xmlns="http://camel.apache.org/schema/blueprint">

<route id="activitidemo">
<from uri="acitivitiwg"/>
<to uri="activiti:checkactiviti"/>
</route>

<route id="cool1">
<from uri="activiti:checkactiviti:servicetask1" />
<to uri="bean:bean1"/>
</route>

<route id="cool2">
<from uri="activiti:checkactiviti:servicetask2?copyVariablesToProperties=true" />
<to uri="bean:bean2"/>
</route>
</camelContext>
</blueprint>

并且在src\main\resources\OSGI-INF\activiti\ 文件夹下面定义check.bpmn20.xml

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

<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:activiti="http://activiti.org/bpmn"
xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI"
xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC"
xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI"
typeLanguage="http://www.w3.org/2001/XMLSchema"
expressionLanguage="http://www.w3.org/1999/XPath"
targetNamespace="http://www.activiti.org/test">

<process id="checkactiviti" name="自动执行例子" isExecutable="true">
<startEvent id="startevent1" name="自动执行"></startEvent>

<serviceTask id="servicetask1" name="一级转发" activiti:delegateExpression="${camel}"></serviceTask>

<serviceTask id="servicetask2" name="二级转发" activiti:delegateExpression="${camel}"></serviceTask>

<userTask id="usertask1" name="UserTask" activiti:delegateExpression="${camel}"></userTask>

<endEvent id="endevent1" name="结束"></endEvent>

<sequenceFlow id="flow1" sourceRef="startevent1" targetRef="servicetask1"></sequenceFlow>
<sequenceFlow id="flow2" sourceRef="servicetask1" targetRef="servicetask2"></sequenceFlow>
<sequenceFlow id="flow3" sourceRef="servicetask2" targetRef="usertask1"></sequenceFlow>
<sequenceFlow id="flow4" sourceRef="usertask1" targetRef="endevent1"></sequenceFlow>

</process>

</definitions>

bean1.java

public class Bean1 implements Processor {

private ProcessEngine processEngine;
private CamelContext camelContext1;
public void setProcessEngine(ProcessEngine processEngine) {
this.processEngine = processEngine;
}

public void setCamelContext1(CamelContext camelContext1) {
this.camelContext1 = camelContext1;
}

@Override
public void process(Exchange exchange) throws Exception {

exchange.getOut().setBody("sss");

}

}

pom.xml需要导入依赖

<dependency>

<groupId>org.activiti</groupId>

<artifactId>activiti-camel</artifactId>

<version>5.16</version>

<scope>provided</scope>

</dependency>

<dependency>

<groupId>org.activiti</groupId>

<artifactId>activiti-osgi</artifactId>

<version>5.17.0</version>

<scope>provided</scope>

</dependency>

当然servicemix需要安装插件

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

<features xmlns="http://karaf.apache.org/xmlns/features/v1.0.0"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://karaf.apache.org/xmlns/features/v1.0.0 http://karaf.apache.org/xmlns/features/v1.0.0"
>

<feature name='features-activiti' version='1.0.0' install="auto">

<feature version='5.16.4'>activiti</feature>

</feature>

</features>