CQ5多场配置服务

Question

我正在尝试创建一个具有多字段配置接口的CQ5服务。它将类似于这，但是单击PLUS按钮，它不仅会添加一个新行，还会添加一组N行。

属性

• Field1 +-
• Field2
• ……
• FieldN

有什么建议吗？

Answer 1

据我所知，Apache中没有这种可能性。

根据您的实际需求，我将考虑对配置进行分解。尝试将所有字段集(希望通过加号按钮添加的字段组)移动到单独的配置中。因此，与slf4j.Logger配置密切相关的是，您可以使用configuration方法。

一个简单的配置工厂可以如下所示

@Component(immediate = true, configurationFactory = true, metatype = true, policy = ConfigurationPolicy.OPTIONAL, name = "com.foo.bar.MyConfigurationProvider", label = "Multiple Configuration Provider")
@Service(serviceFactory = false, value = { MyConfigurationProvider.class })
@Properties({
        @Property(name = "propertyA", label = "Value for property A"),
        @Property(name = "propertyB", label = "Value for property B") })
public class MyConfigurationProvider {

    private String propertyA;
    private String propertyB;

    @Activate
    protected void activate(final Map<String, Object> properties, final ComponentContext componentContext) {
        propertyA = PropertiesUtil.toStringArray(properties.get("propertyA"), defaultValue);
        propertyB = PropertiesUtil.toStringArray(properties.get("propertyB"), defaultValue);
    }
}

使用它就像在任何@Component中添加引用一样简单

@Reference(cardinality = ReferenceCardinality.OPTIONAL_MULTIPLE, referenceInterface = MyConfigurationProvider.class, policy = ReferencePolicy.DYNAMIC)
private final List<MyConfigurationProvider> providers = new LinkedList<MyConfigurationProvider>();

protected void bindProviders(MyConfigurationProvider provider) {
    providers.add(provider);
}

protected void unbindProviders(MyConfigurationProvider provider) {
    providers.remove(provider);
}

Answer 2

这是一种方法。

@Component(label = "My Service", metatype = true, immediate = true)
@Service(MyService.class)
@Properties({
    @Property(name = "my.property", description = "Provide details Eg: url=http://www.google.com|size=10|path=/content/project", value = "", unbounded = PropertyUnbounded.ARRAY) })

public class MyService {

private String[] myPropertyDetails;

@Activate
protected void activate(ComponentContext ctx) {
    this.myPropertyDetails = getPropertyAsArray(ctx.getProperties().get("my.property"));
    try {
        if (null != myPropertyDetails && myPropertyDetails.length > 0) {
            for(String myPropertyDetail : myPropertyDetails) {
                Map<String, String> map = new HashMap<String, String>();
                String[] propertyDetails = myPropertyDetails.split("|");
                for (String keyValuePair : propertyDetails) {
                    String[] keyValue = keyValuePair.split("=");
                    if (null != keyValue && keyValue.length > 1) {
                        map.put(keyValue[0], keyValue[1]);
                    }
                }                   
                /* the map now has all the properties in the form of key value pairs for single field 
                    use this for logic execution. when there are no multiple properties in the row, 
                    you can skip the  logic to split and add in the map */
            }
        }
    } catch (Exception e) {
        log.error( "Exception ", e.getMessage());
    }
}

private String[] getPropertyAsArray(Object obj) {
    String[] paths = { "" };
    if (obj != null) {
        if (obj instanceof String[]) {
            paths = (String[]) obj;
        } else {
            paths = new String[1];
            paths[0] = (String) obj;
        }
    }
    return paths;
}

}