在LDAP中实现超时 [英] Implementation of timeout in LDAP

问题描述

我一直在处理我们使用 LDAP 来获取用户详细信息的应用程序。有时需要更多时间来获取用户详细信息。我想对获取详细信息的方法实施超时，以便我们可以避免在最坏的情况下在服务器中挂起交易。

I have been handling an application in which we are using LDAP to fetch user details. Sometimes it will take more time to fetch user details. I want to implement time out on methods that fetch details so that we can avoid hanging transactions in server in worst case.

我们在这里使用 LdapUtil 我们已在其中配置 LdapTemplate 类以获取所需详细信息的类。

Here we are using LdapUtil class in which we have configured LdapTemplate class to fetch the required details.

我们如何在LDAP方法上实现超时？
（在这种情况下 ldapTemplate.search（...）方法）

public class LdapUtil {

    @Autowired(required = true)
    @Qualifier(value = "ldapTemplateApp")
    LdapTemplate ldapTemplate;

    public Set < ProductGroup > findProducts(String UserId) {
        final Set < ProductGroup > products = newHashSet();
        // Lookup the user         
        String usrFilter = String.format(USERID_FILTER, globalUserId);

        ldapTemplate.search("ou=Members", usrFilter, // note this line
        new NameClassPairCallbackHandler() {

            public void handleNameClassPair(NameClassPair nameClassPair) {
                SearchResult result = (SearchResult) nameClassPair;
                String user = result.getNameInNamespace();

                String GrpFilter = String.format(GROUP_FILTER, user);

                List < String > zonePrefixes = ldapTemplate.search("Zones", GrpFilter, // note this line
                new AttributesMapper() {
                    public Object mapFromAttributes(Attributes attributes) throws NamingException {
                        return substringBeforeLast((String) attributes.get("cn").get(), "-") + "-";
                    }
                });

            }
        });

        products.remove(null);
        return newHashSet(products);
    }
}   

我们有一个 LDAP.xml 其中配置了ldapTemplete

We have one LDAP.xml in which ldapTemplete is configured

<beans xmlns="------">
<!-- LDAP -->
<bean id="contextSourceApp" class="org.springframework.ldap.pool.factory.PoolingContextSource">
<property name="contextSource" ref="contextSourceTargetApp" />
<property name="dirContextValidator">
<bean id="dirContextValidator"   
class="org.springframework.ldap.pool.validation.DefaultDirContextValidator"/>
</property>         
<property name="testOnBorrow" value="true" />
</bean>
<bean id="contextSourceTargetApp" class="org.springframework.ldap.core.support.LdapContextSource">
    <property name="url" value="${ldap.url}" />
    <property name="base" value="${ldap.base.}" />
    <property name="userDn" value="${ldap.user}" />
    <property name="password" value="${ldap.password}" />
    <property name="pooled" value="false" />
</bean>

<bean id="ldapTemplateApp" class="org.springframework.ldap.core.LdapTemplate">
    <constructor-arg ref="contextSourceApp" />
</bean>

我的查询很少：

1. 我们如何实现LDAP方法的TIMEOUT以及如何配置它？（在哪种类型的LDAP框架超时设置中）

1. How can we implement the TIMEOUT for LDAP methods and how to configure it?(In which class of LDAP framework timeout settings will be there)

有没有办法在xml文件中配置它们，即LDAP.xml（在这种情况下）？

推荐答案

我找到了解决方案。
我在ldap.xml文件中添加了以下属性。到目前为止，它对我有用。

I found a solution. I have added the following property in my ldap.xml file. So far it worked for me.

<bean id="contextSourceTargetApp" 
      class="org.springframework.ldap.core.support.LdapContextSource">
    <property name="baseEnvironmentProperties">
        <map>
            <entry key="com.sun.jndi.ldap.connect.timeout" value="5000" />          
        </map>  
    </property>
</bean>

如果您对LDAP超时实施有任何疑问，请发布任何其他解决方案。

Please post any other solution if you have any idea about LDAP timeout implementation.

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