LDAP中超时的实现

2022-01-17 00:00:00 ldap spring java spring-ldap ldapconnection

我一直在处理我们使用 LDAP 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.我想在获取详细信息的方法上实现超时，这样我们就可以避免在最坏的情况下挂起服务器中的事务.

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.

这里我们使用 LdapUtil 类，我们在其中配置了 LdapTemplate 类来获取所需的详细信息.

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?(在这种情况下是 ldapTemplate.search(...) 方法)

How can we implement timeout on LDAP methods? (In this case ldapTemplate.search(...) methods)

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>

我有几个问题:

  1. 我们如何实现 LDAP 方法的 TIMEOUT 以及如何配置它?(将在哪类 LDAP 框架中设置超时设置)

  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 超时实施有任何想法，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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