org.wso2.balana.Balana Java Examples

/**
 * Private methods constructing a Balana <code>{@link AttributeValue}</code> from given parameters
 *
 * @param value          <code>String</code> with the actual value of the Attribute
 * @param dataType       <code>URI</code> of the DataType of the value
 * @param parentDataType <code>URI</code> of the DataType of <code>{@link Attribute}</code> this belongs to
 * @return <code>{@link AttributeValue}</code>
 * @throws UnknownIdentifierException
 */
private static AttributeValue getAttributeValue(String value, URI dataType, URI parentDataType)
        throws UnknownIdentifierException {
    URI type = dataType;
    AttributeValue attributeValue = null;

    //check if dataType attribute is set, if not use the parent data type
    if (dataType == null) {
        type = parentDataType;
    }

    try {
        attributeValue = Balana.getInstance().getAttributeFactory().createValue(type, value);
    } catch (Exception e) {
        throw new UnknownIdentifierException();
    }
    return attributeValue;
}
 

/**
 * Returns a new instance of the <code>CombinerParameter</code> class based on a DOM node. The
 * node must be the root of an XML CombinerParameterType.
 * 
 * @param root the DOM root of a CombinerParameterType XML type
 * 
 * @throws ParsingException if the CombinerParameterType is invalid
 * @return an instance of <code>CombinerParameter</code>
 */
public static CombinerParameter getInstance(Node root) throws ParsingException {
    // get the name, which is a required attribute
    String name = root.getAttributes().getNamedItem("ParameterName").getNodeValue();

    // get the attribute value, the only child of this element
    AttributeFactory attrFactory = Balana.getInstance().getAttributeFactory();
    AttributeValue value = null;

    try {
        value = attrFactory.createValue(root.getFirstChild());
    } catch (UnknownIdentifierException uie) {
        throw new ParsingException(uie.getMessage(), uie);
    }

    return new CombinerParameter(name, value);
}
 

public static Attributes getAttributes(AttributeDTO attributeDataDTO) {

        try {
            AttributeValue value = Balana.getInstance().getAttributeFactory().
                    createValue(new URI(attributeDataDTO.getAttributeDataType()),
                            attributeDataDTO.getAttributeValue());
            Attribute attribute = new Attribute(new URI(attributeDataDTO.getAttributeId()),
                    null, null, value, XACMLConstants.XACML_VERSION_3_0);
            Set<Attribute> set = new HashSet<Attribute>();
            set.add(attribute);
            String category = attributeDataDTO.getCategory();
            // We are only creating XACML 3.0 requests Therefore covert order XACML categories to new uris
            if (PDPConstants.SUBJECT_ELEMENT.equals(category)) {
                category = PDPConstants.SUBJECT_CATEGORY_URI;
            } else if (PDPConstants.RESOURCE_ELEMENT.equals(category)) {
                category = PDPConstants.RESOURCE_CATEGORY_URI;
            } else if (PDPConstants.ACTION_ELEMENT.equals(category)) {
                category = PDPConstants.ACTION_CATEGORY_URI;
            } else if (PDPConstants.ENVIRONMENT_ELEMENT.equals(category)) {
                category = PDPConstants.ENVIRONMENT_CATEGORY_URI;
            }
            return new Attributes(new URI(category), set);
        } catch (Exception e) {
            log.debug(e);
            //ignore and return null;
        }

        return null;
    }
 

public static Attributes getAttributes(AttributeDTO attributeDataDTO) {

        try {
            AttributeValue value = Balana.getInstance().getAttributeFactory().
                    createValue(new URI(attributeDataDTO.getAttributeDataType()),
                            attributeDataDTO.getAttributeValue());
            Attribute attribute = new Attribute(new URI(attributeDataDTO.getAttributeId()),
                    null, null, value, XACMLConstants.XACML_VERSION_3_0);
            Set<Attribute> set = new HashSet<Attribute>();
            set.add(attribute);
            String category = attributeDataDTO.getCategory();
            // We are only creating XACML 3.0 requests Therefore covert order XACML categories to new uris
            if (PDPConstants.SUBJECT_ELEMENT.equals(category)) {
                category = PDPConstants.SUBJECT_CATEGORY_URI;
            } else if (PDPConstants.RESOURCE_ELEMENT.equals(category)) {
                category = PDPConstants.RESOURCE_CATEGORY_URI;
            } else if (PDPConstants.ACTION_ELEMENT.equals(category)) {
                category = PDPConstants.ACTION_CATEGORY_URI;
            } else if (PDPConstants.ENVIRONMENT_ELEMENT.equals(category)) {
                category = PDPConstants.ENVIRONMENT_CATEGORY_URI;
            }
            return new Attributes(new URI(category), set);
        } catch (Exception e) {
            log.debug(e);
            //ignore and return null;
        }

        return null;
    }
 

/**
 * Initialize the balana instance..
 * */
protected static void initBalana(){
    try{
        // using file based policy repository. so set the policy location as system property
        String policyLocation = (new File(".")).getCanonicalPath() + File.separator + "resources";
        System.setProperty(FileBasedPolicyFinderModule.POLICY_DIR_PROPERTY, policyLocation);
    } catch (IOException e) {
        System.err.println("Can not locate policy repository");
    }
    // create default instance of Balana
    balana = Balana.getInstance();
}
 

private static void initBalana(){

        try{
            // using file based policy repository. so set the policy location as system property
            String policyLocation = (new File(".")).getCanonicalPath() + File.separator + "resources";
            System.setProperty(FileBasedPolicyFinderModule.POLICY_DIR_PROPERTY, policyLocation);
        } catch (IOException e) {
            System.err.println("Can not locate policy repository");
        }
        // create default instance of Balana
        balana = Balana.getInstance();
    }
 

@Activate
public void setUp() throws Exception {
    this.balana = Balana.getInstance();
    this.jaxbContext = JAXBContext.newInstance("com.mobi.security.policy.api.xacml.jaxb",
            com.mobi.security.policy.api.xacml.jaxb.ObjectFactory.class.getClassLoader());
}