Injecting a File in Spring Java Config

Question

I am trying to configure SAML authentication using Spring's SAML extension. While trying it in the annotation way using Java Configuration. I have a requirement of getting the IDP metadata file and the SP metadata file to create the metadataManager bean.

Here is the relevant configuration:

@Bean(name="idpMetadata")
public ExtendedMetadataDelegate idpMetaData(){
    FilesystemMetadataProvider metadataProvider = null;
    try {
        metadataProvider = new FilesystemMetadataProvider(idpMetadataFile);
        metadataProvider.setParserPool(parserPool());
    }
    catch (MetadataProviderException e) {
        e.printStackTrace();
    }
    ExtendedMetadataDelegate metaDataDelegate = 
        new ExtendedMetadataDelegate(metadataProvider, new ExtendedMetadata());
    return metaDataDelegate;
}

@Bean(name="spMetadata")
public ExtendedMetadataDelegate spMetaData(){
    FilesystemMetadataProvider metadataProvider = null;
    try {
        metadataProvider = new FilesystemMetadataProvider(spMetadataFile);
        metadataProvider.setParserPool(parserPool());
    }
    catch (MetadataProviderException e) {
        e.printStackTrace();
    }

    ExtendedMetadata extendedMetadata = new ExtendedMetadata();
    extendedMetadata.setLocal(true);
    extendedMetadata.setAlias("defaultAlias");
    extendedMetadata.setSecurityProfile("metaiop");
    extendedMetadata.setSslSecurityProfile("pkix");
    extendedMetadata.setRequireArtifactResolveSigned(true);
    extendedMetadata.setRequireLogoutRequestSigned(true);
    extendedMetadata.setRequireLogoutResponseSigned(false);
    extendedMetadata.setIdpDiscoveryEnabled(false);

    ExtendedMetadataDelegate metaDataDelegate = 
        new ExtendedMetadataDelegate(metadataProvider, extendedMetadata);
    return metaDataDelegate;
}

My problem is I am not able to get the file content here. The spMetadataFile and the idpMetadataFile are null. I am not sure how can I inject or get old of these files if stored in the classpath of the project.

Please help.

it is not clear how spMetadataFile and idpMetadataFile are populated but it seems you can autowire ResourceLoader and use it like resourceLoader.getResource("classpath:filepath").getFile(); to get a file. — Ritesh, Jun 16 '14 at 02:30

score 0 · Answer 1 · answered Jul 17 '14 at 13:34

This code works fine on my own SP-implementation:

@Bean
@Qualifier("yourMetadataProvider")
public ExtendedMetadataDelegate yourMetadataProvider()
        throws MetadataProviderException, IOException {
    String path = "<metadata_path>";
    FilesystemMetadataProvider filesystemMetadataProvider = new FilesystemMetadataProvider(
            new File(path));
    filesystemMetadataProvider.setParserPool(parserPool());
    ExtendedMetadataDelegate emd = new ExtendedMetadataDelegate(
            filesystemMetadataProvider, new ExtendedMetadata());

    // Your config
    emd.setLocal(true);
    emd.setAlias("defaultAlias");
    emd.setSecurityProfile("metaiop");
    emd.setSslSecurityProfile("pkix");
    emd.setRequireArtifactResolveSigned(true);
    emd.setRequireLogoutRequestSigned(true);
    emd.setRequireLogoutResponseSigned(false);
    emd.setIdpDiscoveryEnabled(false);

    return emd;
}

Be careful when setting the path of your metadata file.

Injecting a File in Spring Java Config

1 Answers1