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使用 .net 工具，我已经能够创建一个公开旧版 MSSQL 数据库的 ODATA 服务端点。然后我打算使用 odata4j 与之通信。然而，缺乏pojos，我转向restlet。我使所有实体在服务中可见，但是当我运行 restlet 生成器时，它无法生成 pojos 说：

java.util.concurrent.TimeoutException
    at org.restlet.ext.xml.SaxRepresentation.parse(SaxRepresentation.java:230)
at org.restlet.ext.odata.internal.edm.Metadata.<init>(Metadata.java:79)
at org.restlet.ext.odata.Service.getMetadata(Service.java:488)
at org.restlet.ext.odata.Generator.main(Generator.java:137)
...
Can't get the metadata for `http://localhost:53088/ODataService.svc/`
...
java.io.IOException: Couldn't parse the source representation: java.io.IOException: The thread blocked at the cyclic barrier has timed out.
at org.restlet.ext.xml.SaxRepresentation.parse(SaxRepresentation.java:238)
at org.restlet.ext.odata.internal.edm.Metadata.<init>(Metadata.java:79)
at org.restlet.ext.odata.Service.getMetadata(Service.java:488)
at org.restlet.ext.odata.Generator.main(Generator.java:137)
at xxx.model.generator.ModelGenerator.main(ModelGenerator.java:12)

我决定将 ODATA 服务缩减为一个简单的实体并尝试代码生成，它成功了！但是当我启用更多实体时，我收到了一个 XML 解析错误：

Can't get the metadata for `http://localhost:53088/ODataService.svc/`
java.io.IOException: Couldn't parse the source representation:\
org.xml.sax.SAXParseException: XML document structures must start and end within \
the same entity.
    at org.restlet.ext.xml.SaxRepresentation.parse(SaxRepresentation.java:238)
    at org.restlet.ext.odata.internal.edm.Metadata.<init>(Metadata.java:79)
    at org.restlet.ext.odata.Service.getMetadata(Service.java:488)
    at org.restlet.ext.odata.Generator.main(Generator.java:137)
    at xxx.model.generator.ModelGenerator.main(ModelGenerator.java:12)
An error occurred: 
Cannot retrieve the metadata.

无论如何，它似乎在一些实体之后不喜欢 xml，而不是不喜欢特定实体。来自的 XMLhttp://localhost:53088/ODataService.svc/$metadata也是有效的，没有错误。

这是生成器代码：

import org.restlet.ext.odata.Generator;

public class ModelGenerator
{
    public static final String [] URL_WORKSPACE = { "http://localhost:53088/ODataService.svc/", "src/main/java/"};

    public static void main(String[] args)
    {
        Generator.main(URL_WORKSPACE);
    }
}

这是我的 Maven POM 详细信息：

    <properties>
        <org.odata4j.version>0.7.0</org.odata4j.version>
        <org.restlet.version>2.1.4</org.restlet.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.eclipse.persistence</groupId>
            <artifactId>eclipselink</artifactId>
            <version>2.5.1</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>org.odata4j</groupId>
            <artifactId>odata4j-core</artifactId>
            <version>0.7.0</version>
        </dependency>
        <dependency>
            <groupId>org.restlet.jse</groupId>
            <artifactId>org.restlet</artifactId>
            <version>${org.restlet.version}</version>
        </dependency>
        <dependency>
            <groupId>org.restlet.jse</groupId>
            <artifactId>org.restlet.ext.odata</artifactId>
            <version>${org.restlet.version}</version>
        </dependency>
    </dependencies>

任何建议，将不胜感激。谢谢！

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