/* The contents of this file are subject to the license and copyright terms
* detailed in the license directory at the root of the source tree (also
* available online at http://fedora-commons.org/license/).
*/
package org.fcrepo.server.storage.service;
import java.io.File;
import java.io.FileInputStream;
import java.util.Vector;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.XMLReader;
import org.xml.sax.helpers.DefaultHandler;
import org.fcrepo.server.errors.GeneralException;
import org.fcrepo.server.errors.ObjectIntegrityException;
import org.fcrepo.server.errors.RepositoryConfigurationException;
import org.fcrepo.server.storage.types.DeploymentDSBindSpec;
import org.fcrepo.server.storage.types.MethodDef;
import org.fcrepo.server.storage.types.MethodDefOperationBind;
import org.fcrepo.server.storage.types.MethodParmDef;
/**
* Controller class for parsing the various kinds of inline metadata datastreams
* found in service objects. The intent of this class is to initiate parsing of
* these datastreams so that information about a service can be
* instantiated in Fedora.
* </p>
*
* @author Sandy Payette
* @version $Id$
*/
public class ServiceMapper {
private WSDLParser wsdlHandler;
private MmapParser methodMapHandler;
private DSInputSpecParser dsInputSpecHandler;
private final String parentPID;
public static void main(String[] args) {
if (args.length < 2) {
System.err
.println("usage: java ServiceMapper wsdlLocation methodMapLocation "
+ "\n"
+ " wsdlLocation: the file path of the wsdl to be parsed"
+ "\n"
+ " methodMapLocation: the file path of the method map to be parsed."
+ "\n"
+ " dsInputSpecLocation: the file path of the datastream input spec to be parsed."
+ " pid: the PID of the sDef or sDep object for the above files.");
System.exit(1);
}
try {
ServiceMapper mapper = new ServiceMapper(args[3]);
InputSource wsdl =
new InputSource(new FileInputStream(new File(args[0])));
InputSource mmap =
new InputSource(new FileInputStream(new File(args[1])));
InputSource dsSpec =
new InputSource(new FileInputStream(new File(args[2])));
mapper.getMethodDefs(mmap);
mapper.getMethodDefBindings(wsdl, mmap);
mapper.getDSInputSpec(dsSpec);
} catch (Exception e) {
e.printStackTrace();
}
System.exit(1);
}
public ServiceMapper(String behaviorObjectPID) {
parentPID = behaviorObjectPID;
}
/**
* getMethodDefs: creates an array of abstract method definitions in the
* form of an array of Fedora MethodDef objects. The creation of a MethodDef
* object requires information from a Fedora Method Map.
*
* @param methodMapSource :
* Fedora Method Map definition for methods
* @return MethodDef[] : an array of abstract method definitions
* @throws ObjectIntegrityException
* @throws RepositoryConfigurationException
* @throws GeneralException
*/
public MethodDef[] getMethodDefs(InputSource methodMapSource)
throws ObjectIntegrityException, RepositoryConfigurationException,
GeneralException {
Mmap methodMap = getMethodMap(methodMapSource);
return methodMap.mmapMethods;
}
/**
* getMethodDefBindings: creates an array of operation bindings in the form
* of an array of Fedora MethodDefOperationBind objects. The creation of a
* MethodDefOperationBind object requires information from a WSDL service
* definition and a related Fedora Method Map. The Fedora Method Map is
* merged with the WSDL to provide a Fedora-specific view of the WSDL.
*
* @param wsdlSource :
* WSDL service definition for methods
* @param methodMapSource :
* Fedora Method Map definition for methods
* @return MethodDefOperationBind[] : an array of method bindings
* @throws ObjectIntegrityException
* @throws RepositoryConfigurationException
* @throws GeneralException
*/
public MethodDefOperationBind[] getMethodDefBindings(InputSource wsdlSource,
InputSource methodMapSource)
throws ObjectIntegrityException, RepositoryConfigurationException,
GeneralException {
return merge(getService(wsdlSource), getMethodMap(methodMapSource));
}
public DeploymentDSBindSpec getDSInputSpec(InputSource dsInputSpecSource)
throws ObjectIntegrityException, RepositoryConfigurationException,
GeneralException {
if (dsInputSpecHandler == null) {
dsInputSpecHandler =
(DSInputSpecParser) parse(dsInputSpecSource,
new DSInputSpecParser(parentPID));
}
return dsInputSpecHandler.getServiceDSInputSpec();
}
private Mmap getMethodMap(InputSource methodMapSource)
throws ObjectIntegrityException, RepositoryConfigurationException,
GeneralException {
if (methodMapHandler == null) {
methodMapHandler =
(MmapParser) parse(methodMapSource,
new MmapParser(parentPID));
}
return methodMapHandler.getMethodMap();
}
private Service getService(InputSource wsdlSource)
throws ObjectIntegrityException, RepositoryConfigurationException,
GeneralException {
if (wsdlHandler == null) {
wsdlHandler = (WSDLParser) parse(wsdlSource, new WSDLParser());
}
return wsdlHandler.getService();
}
private DefaultHandler parse(InputSource xml, DefaultHandler eventHandler)
throws ObjectIntegrityException, RepositoryConfigurationException,
GeneralException {
try {
// XMLSchema validation via SAX parser
SAXParserFactory spf = SAXParserFactory.newInstance();
spf.setNamespaceAware(true);
spf.setValidating(false);
SAXParser sp = spf.newSAXParser();
DefaultHandler handler = eventHandler;
XMLReader xmlreader = sp.getXMLReader();
xmlreader.setContentHandler(handler);
xmlreader.parse(xml);
return handler;
} catch (ParserConfigurationException e) {
String msg =
"ServiceMapper returned parser error. "
+ "The underlying exception was a "
+ e.getClass().getName() + ". "
+ "The message was " + "\"" + e.getMessage() + "\"";
throw new RepositoryConfigurationException(msg);
} catch (SAXException e) {
String msg =
"ServiceMapper returned SAXException. "
+ "The underlying exception was a "
+ e.getClass().getName() + ". "
+ "The message was " + "\"" + e.getMessage() + "\"";
throw new ObjectIntegrityException(msg);
} catch (Exception e) {
String msg =
"ServiceMapper returned error. "
+ "The underlying error was a "
+ e.getClass().getName() + ". "
+ "The message was " + "\"" + e.getMessage() + "\"";
e.printStackTrace();
throw new GeneralException(msg);
}
}
private MethodDefOperationBind[] merge(Service service, Mmap methodMap)
throws ObjectIntegrityException, GeneralException {
Port port = null;
Binding binding = null;
MethodDefOperationBind[] fedoraMethodDefBindings =
new MethodDefOperationBind[0];
// If the WSDL Service defines multiple Ports (with Binding) for the abstract operations
// we must CHOOSE ONE binding for Fedora to work with.
if (service.ports.length > 1) {
port = choosePort(service);
} else {
port = service.ports[0];
}
binding = port.binding;
// Reflect on the type of binding we are dealing with, then Fedora-ize things.
if (binding.getClass().getName()
.equalsIgnoreCase("org.fcrepo.server.storage.service.HTTPBinding")) {
// Initialize the array to hold the Fedora-ized operation bindings.
fedoraMethodDefBindings =
new MethodDefOperationBind[((HTTPBinding) binding).operations.length];
for (int i = 0; i < ((HTTPBinding) binding).operations.length; i++) {
// From methodMap which was previously created by parsing Fedora method map metadata
// which provides a Fedora overlay on the service WSDL.
MmapMethodDef methodDef =
(MmapMethodDef) methodMap.wsdlOperationToMethodDef
.get(((HTTPBinding) binding).operations[i].operationName);
fedoraMethodDefBindings[i] = new MethodDefOperationBind();
fedoraMethodDefBindings[i].methodName = methodDef.methodName;
fedoraMethodDefBindings[i].methodLabel = methodDef.methodLabel;
fedoraMethodDefBindings[i].methodParms = methodDef.methodParms;
// From WSDL Port found in Service object
fedoraMethodDefBindings[i].serviceBindingAddress =
port.portBaseURL;
// From WSDL Binding found in Service object
fedoraMethodDefBindings[i].protocolType =
MethodDefOperationBind.HTTP_MESSAGE_PROTOCOL;
fedoraMethodDefBindings[i].operationLocation =
((HTTPBinding) binding).operations[i].operationLocation;
fedoraMethodDefBindings[i].operationURL =
fedoraMethodDefBindings[i].serviceBindingAddress
.concat(fedoraMethodDefBindings[i].operationLocation);
// Get the list of datastream input binding keys that pertain to the particular
// operation binding. From the WSDL perspective, the datastream input keys
// are WSDL message parts that, according the the Fedora Method Map, are
// datastream inputs to the operation.
MmapMethodParmDef[] parms = methodDef.wsdlMsgParts;
Vector<String> tmp_dsInputKeys = new Vector<String>();
for (MmapMethodParmDef element : parms) {
if (element.parmType
.equalsIgnoreCase(MethodParmDef.DATASTREAM_INPUT)) {
tmp_dsInputKeys.add(element.parmName);
}
}
fedoraMethodDefBindings[i].dsBindingKeys =
(String[]) tmp_dsInputKeys.toArray(new String[0]);
// Set the outputMIMETypes from the operation's output binding, if any
HTTPOperationInOut oBind =
((HTTPBinding) binding).operations[i].outputBinding;
if (oBind != null) {
Vector<String> tmp_outputMIMETypes = new Vector<String>();
for (MIMEContent element : oBind.ioMIMEContent) {
tmp_outputMIMETypes.add(element.mimeType);
}
fedoraMethodDefBindings[i].outputMIMETypes =
(String[]) tmp_outputMIMETypes
.toArray(new String[0]);
}
}
} else if (binding.getClass().getName()
.equalsIgnoreCase("org.fcrepo.server.storage.service.SOAPBinding")) {
// FIXIT!! Implement this!
}
return fedoraMethodDefBindings;
}
private Port choosePort(Service service) {
// If there is an HTTP binding, this will be preferred.
for (Port element : service.ports) {
Binding binding = element.binding;
if (binding
.getClass()
.getName()
.equalsIgnoreCase("org.fcrepo.server.storage.service.HTTPBinding")) {
return element;
}
}
// Otherwise, just return the first port for binding
return service.ports[0];
}
}