Example usage for java.util.zip Deflater DEFLATED

Introduction

In this page you can find the example usage for java.util.zip Deflater DEFLATED.

Prototype

int DEFLATED

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Document

Compression method for the deflate algorithm (the only one currently supported).

Usage

From source file:org.wso2.identity.scenarios.commons.SAML2SSOTestBase.java

/**
 * Base64 encoding of the SAML request./*from   w w  w .ja  v a  2s .c  o  m*/
 *
 * @param requestMessage SAML authentication request.
 * @param binding SAML binding type.
 * @return Base64 encoded SAML request.
 * @throws Exception
 */
protected String encodeRequestMessage(SignableSAMLObject requestMessage, String binding) throws Exception {

    doBootstrap();
    System.setProperty(XML_DOCUMENT_BUILDER_FACTORY, XML_DOCUMENT_BUILDER_FACTORY_IMPL);
    Marshaller marshaller = Configuration.getMarshallerFactory().getMarshaller(requestMessage);
    Element authDOM = null;
    authDOM = marshaller.marshall(requestMessage);
    StringWriter rspWrt = new StringWriter();
    XMLHelper.writeNode(authDOM, rspWrt);

    if (SAMLConstants.SAML2_REDIRECT_BINDING_URI.equals(binding)) {
        //Compress the message, Base 64 encode and URL encode
        Deflater deflater = new Deflater(Deflater.DEFLATED, true);
        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
        DeflaterOutputStream deflaterOutputStream = new DeflaterOutputStream(byteArrayOutputStream, deflater);
        deflaterOutputStream.write(rspWrt.toString().getBytes(Charset.forName(StandardCharsets.UTF_8.name())));
        deflaterOutputStream.close();
        String encodedRequestMessage = Base64.encodeBytes(byteArrayOutputStream.toByteArray(),
                Base64.DONT_BREAK_LINES);
        return URLEncoder.encode(encodedRequestMessage, StandardCharsets.UTF_8.name()).trim();
    } else if (SAMLConstants.SAML2_POST_BINDING_URI.equals(binding)) {
        return Base64.encodeBytes(rspWrt.toString().getBytes(), Base64.DONT_BREAK_LINES);
    } else {
        log.warn("Unsupported SAML2 HTTP Binding. Defaulting to " + SAMLConstants.SAML2_POST_BINDING_URI);
        return Base64.encodeBytes(rspWrt.toString().getBytes(), Base64.DONT_BREAK_LINES);
    }
}