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package com.sun.jts.pi;
import org.omg.IOP.Codec;
import org.omg.IOP.TaggedComponent;
import org.omg.IOP.CodecPackage.InvalidTypeForEncoding;
import org.omg.CORBA.ORB;
import org.omg.CORBA.Any;
import org.omg.CORBA.LocalObject;
import org.omg.CORBA.INV_POLICY;
import org.omg.CORBA.INTERNAL;
import org.omg.CosTransactions.*;
import org.omg.CosTSInteroperation.TAG_OTS_POLICY;
import org.omg.CosTSInteroperation.TAG_INV_POLICY;
import org.omg.PortableInterceptor.IORInfo;
import org.omg.PortableInterceptor.IORInterceptor;
/**
* This class implements the IORInterceptor for JTS. When an instance of this
* class is called by the ORB (during POA creation), it supplies appropriate
* IOR TaggedComponents for the OTSPolicy / InvocationPolicy associated
* with the POA, which will be used by the ORB while publishing IORs.
*
* @author Ram Jeyaraman 11/11/2000
* @version 1.0
*/
public class IORInterceptorImpl extends LocalObject implements IORInterceptor {
// class attributes
private static final String name = "com.sun.jts.pi.IORInterceptor";
// Instance attributes
private Codec codec = null;
public IORInterceptorImpl(Codec codec) {
this.codec = codec;
}
// org.omg.PortableInterceptors.IORInterceptorOperations implementation
public void establish_components (IORInfo info) {
// get the OTSPolicy and InvocationPolicy objects
OTSPolicy otsPolicy = null;
try {
otsPolicy = (OTSPolicy)
info.get_effective_policy(OTS_POLICY_TYPE.value);
} catch (INV_POLICY e) {
// ignore. This implies an policy was not explicitly set.
// A default value will be used instead.
}
InvocationPolicy invPolicy = null;
try {
invPolicy = (InvocationPolicy)
info.get_effective_policy(INVOCATION_POLICY_TYPE.value);
} catch (INV_POLICY e) {
// ignore. This implies an policy was not explicitly set.
// A default value will be used instead.
}
// get OTSPolicyValue and InvocationPolicyValue from policy objects.
short otsPolicyValue = FORBIDS.value; // default value
short invPolicyValue = EITHER.value; // default value
if (otsPolicy != null) {
otsPolicyValue = otsPolicy.value();
}
if (invPolicy != null) {
invPolicyValue = invPolicy.value();
}
// use codec to encode policy value into an CDR encapsulation.
Any otsAny = ORB.init().create_any();
Any invAny = ORB.init().create_any();
otsAny.insert_short(otsPolicyValue);
invAny.insert_short(invPolicyValue);
byte[] otsCompValue = null;
byte[] invCompValue = null;
try {
otsCompValue = this.codec.encode_value(otsAny);
invCompValue = this.codec.encode_value(invAny);
} catch (InvalidTypeForEncoding e) {
throw new INTERNAL();
}
// create IOR TaggedComponents for OTSPolicy and InvocationPolicy.
TaggedComponent otsComp = new TaggedComponent(TAG_OTS_POLICY.value,
otsCompValue);
TaggedComponent invComp = new TaggedComponent(TAG_INV_POLICY.value,
invCompValue);
// add ior components.
info.add_ior_component(otsComp);
info.add_ior_component(invComp);
}
// org.omg.PortableInterceptors.InterceptorOperations implementation
public String name(){
return IORInterceptorImpl.name;
}
public void destroy() {}
}