alfresco-community-repo/config/alfresco/thumbnail-service-context.xml

<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE beans PUBLIC '-//SPRING//DTD BEAN//EN' 'http://www.springframework.org/dtd/spring-beans.dtd'>

<beans>

    <!-- Thumbnail service bean -->
    <bean id="ThumbnailService" class="org.springframework.aop.framework.ProxyFactoryBean">
        <property name="proxyInterfaces">
            <value>org.alfresco.service.cmr.thumbnail.ThumbnailService</value>
        </property>
        <property name="target">
            <ref bean="thumbnailService"/>
        </property>
        <property name="interceptorNames">
            <list>
                <idref local="ThumbnailService_transaction"/>
                <idref bean="AuditMethodInterceptor"/>
                <idref bean="exceptionTranslator"/>
                <idref local="ThumbnailService_security"/>
            </list>
        </property>
    </bean>

    <!-- Thumbnail service transaction bean -->
    <bean id="ThumbnailService_transaction" class="org.springframework.transaction.interceptor.TransactionInterceptor">
        <property name="transactionManager">
            <ref bean="transactionManager"/>
        </property>
        <property name="transactionAttributes">
            <props>
                <prop key="*">${server.transaction.mode.default}</prop>
            </props>
        </property>
    </bean>
    
    <!-- Thumbnail service security bean -->
    <bean id="ThumbnailService_security" class="org.alfresco.repo.security.permissions.impl.AlwaysProceedMethodInterceptor" />
    
    <!-- Thumbnail service implemenation bean -->
    <bean id="thumbnailService" class="org.alfresco.repo.thumbnail.ThumbnailServiceImpl">
    	<property name="nodeService" ref="NodeService"/>
    	<property name="contentService" ref="ContentService"/>
    	<property name="mimetypeMap" ref="mimetypeService"/>
    	<property name="thumbnailRegistry" ref="thumbnailRegistry" />
    </bean>   
    
    <!-- Thumbnail Register -->
    <bean id="thumbnailRegistry" class="org.alfresco.repo.thumbnail.ThumbnailRegistry">
    	<property name="thumbnailDetails">
    		<list>
    		
    		    <!-- Small image thumbnail options -->
				<bean class="org.alfresco.repo.thumbnail.ThumbnailDetails">
					<property name="name" value="medium" />
					<property name="mimetype" value="image/jpeg"/>
					<property name="transformationOptions">
	    				<bean class="org.alfresco.repo.content.transform.magick.ImageTransformationOptions">
	    					<property name="resizeOptions">
	    						<bean class="org.alfresco.repo.content.transform.magick.ImageResizeOptions">
	    							<property name="width" value="100"/>
	    							<property name="height" value="100"/>
	    							<property name="maintainAspectRatio" value="true"/>
	    							<property name="resizeToThumbnail" value="true" />
	    						</bean>	
	    					</property>
	    				</bean>
					</property>
				</bean>
    			
    			<!-- Web Preview thumbnail options -->
				<bean class="org.alfresco.repo.thumbnail.ThumbnailDetails">
				    <property name="name" value="webpreview" />
					<property name="mimetype" value="application/x-shockwave-flash"/>    					
					<property name="transformationOptions">
	    				<bean class="org.alfresco.repo.content.transform.swf.SWFTransformationOptions">
	    					<property name="flashVersion" value="9"/>
	    				</bean>
	    			</property>
	    		</bean>
    		
    		</list>
    	</property>
    </bean>    
    
    <!-- Create Thumbnail Action -->
    <bean id="create-thumbnail" class="org.alfresco.repo.thumbnail.CreateThumbnailActionExecuter" parent="action-executer">
      <property name="publicAction">
         <value>false</value>
      </property>
        <property name="nodeService">
            <ref bean="NodeService" />
        </property>
        <property name="thumbnailService">
            <ref bean="ThumbnailService" />
        </property>
    </bean> 

</beans>